JP2008149066A

JP2008149066A - Blood collection device, slide-type channel switching means and multiway cock

Info

Publication number: JP2008149066A
Application number: JP2006342892A
Authority: JP
Inventors: Satoshi Tokumitsu; 聡徳光; Seiichi Ono; 誠一小野
Original assignee: Kawasumi Laboratories Inc
Current assignee: SB Kawasumi Laboratories Inc
Priority date: 2006-12-20
Filing date: 2006-12-20
Publication date: 2008-07-03
Anticipated expiration: 2026-12-20
Also published as: JP5054371B2

Abstract

【課題】作業者のクランプの閉め忘れ、これに伴う採血バッグへの採血初流の混入や、破断が速やかにできないとか、封止部材の破断片が発生したりする懸念が解消できる採血器具を提供すること。
【解決手段】供血者より血液を採取する採血針（８）と、採取された血液を収納する採血バッグ（４）と、一方端が前記採血バッグ（４）に他方端が前記採血針（８）にそれぞれ連通し、前記採取された血液を前記採血バッグ（４）へ導入する採血チューブ（Ｔ１）と、当該採血チューブ（Ｔ１）から分岐し、前記採取された血液の初流を除去する初流血液チューブ（Ｔ２）とを有する採血器具であって、前記採血チューブ（Ｔ１）の途中に、当該採血チューブ（Ｔ１）と前記初流血液チューブ（Ｔ２）の流路切替手段（Ｖ）を配置し、当該流路切替手段（Ｖ）に、初流血液チューブ（Ｔ２）の一端部を接続した採血器具（１）。
【選択図】図１
An object of the present invention is to provide a blood collection device that can eliminate the fear that an operator forgets to close the clamp, the blood sample collection into the blood collection bag, the breakage of the blood collection cannot be performed quickly, or the fracture of the sealing member occurs. To provide.
A blood collection needle (8) for collecting blood from a blood donor, a blood collection bag (4) for storing the collected blood, one end at the blood collection bag (4), and the other end at the blood collection needle (8) ), A blood collection tube (T1) for introducing the collected blood into the blood collection bag (4), and a branch from the blood collection tube (T1) to remove the initial flow of the collected blood. A blood collection device having a blood flow tube (T2), wherein a flow path switching means (V) between the blood collection tube (T1) and the initial flow blood tube (T2) is disposed in the middle of the blood collection tube (T1). And the blood collection instrument (1) which connected the one end part of the first flow blood tube (T2) to the said flow-path switching means (V).
[Selection] Figure 1

Description

本発明は、初流血液を採取するとともに、検査用血液の採取を容易に行うことのできる採血器具とスライド式流路切替手段及び多方活栓に関する。スライド式流路切替手段及び多方活栓は、採血器具以外の医療分野、その他の一般産業分野にも利用できる。 The present invention relates to a blood collection instrument, a slide-type flow path switching unit, and a multiway cock that can collect initial blood and easily collect blood for examination. The slide-type channel switching means and the multi-way stopcock can be used in medical fields other than blood collection instruments and other general industrial fields.

採血針から採取した血液を血液バッグに導入する際、供血者の穿刺位置をアルコール等で消毒を行うが、消毒を行なっても、皮膚や皮下に存在する細菌が採取した血液の中に混入することがある。
混入した細菌は、細菌の種類によっては、血液バッグを保存している間にも増殖し、細菌の増殖に気づくことなく輸血などに用いられると輸血された患者に感染症などを引き起こし、重篤な事態となるおそれもある。
そこで、採取された血液の細菌汚染防止を図ることができるように、特に採血時の初流の血液を除去するシステムが発明されるようになった。 When blood collected from a blood collection needle is introduced into a blood bag, the donor's puncture position is sterilized with alcohol, etc., but even if the sterilization is performed, bacteria existing in the skin and subcutaneous will be mixed into the collected blood. Sometimes.
Depending on the type of bacteria, the contaminated bacteria can grow even while the blood bag is stored, and if used for blood transfusion without noticing the growth of the bacteria, it can cause infections in the transfused patient and cause serious infections. There is also a risk that this will happen.
Therefore, a system for removing the initial blood at the time of blood collection has been invented so that the collected blood can be prevented from being contaminated with bacteria.

特許文献１から特許文献４には、血液を採取する採血針と、採取された血液を収納する採血バッグと、一方端が採血バッグに他方端が採血針にそれぞれ連通し、採取された血液を採血バッグへ導入する第１の流路（採血チューブ）と、分岐部を介して第１の流路から分岐し、末端に血液の取り出し口を有する第２の流路（初流血液チューブ）を有し、分岐部と採血バッグの間の第１の流路（採血チューブ）に、流路用封止手段（外付けのクランプ、破断すると流路が開通する封止部材）を装着した採血用器具の発明が開示されている。 Patent Document 1 to Patent Document 4 include a blood collection needle for collecting blood, a blood collection bag for storing the collected blood, one end communicating with the blood collection bag and the other end with the blood collection needle, respectively. A first flow path (blood collection tube) to be introduced into the blood collection bag, and a second flow path (initial flow blood tube) branched from the first flow path via the branch portion and having a blood outlet at the end. And a first flow path (blood collection tube) between the branching section and the blood collection bag is equipped with a flow path sealing means (external clamp, sealing member that opens the flow path when broken) An instrument invention is disclosed.

中でも特許文献２と特許文献３は、第１の流路（採血チューブ）の流路用封止手段として、外付けのクランプを使用した場合、作業者のクランプの閉め忘れ、これに伴う採血バッグへの採血初流の混入を確実に防止するために、流路用封止手段として、破断すると流路が開通する封止部材を使用するのが良いと明記されている。 Among them, Patent Document 2 and Patent Document 3 disclose that when an external clamp is used as the flow path sealing means of the first flow path (blood collection tube), the operator forgets to close the clamp and the blood collection bag associated therewith. It is specified that a sealing member that opens the flow path when it is broken may be used as the flow path sealing means in order to reliably prevent the initial blood collection from flowing into the flow path.

特許文献１から特許文献４の発明では、（１）初流血液の採血初流除去バッグ等へ採血、（２）第２の流路（初流血液チューブ）のクランプ等による閉塞、（３）採血バッグへ至る第１の流路（採血チューブ）の解放（外付けのクランプ、破断すると流路が開通する封止部材等）、（４）採血終了後の第１の流路（採血チューブ）の閉塞（クランプをかける）等の作業が必要であった。（１）から（４）の作業手順では、（２）閉塞、（３）解放の順番を間違えることが懸念され、順番を間違えると製剤の無菌保証が低下し、閉塞までの操作が遅くなるため採血初流除去バッグ等への採血が過量になる懸念がある。
また特許文献２と特許文献３のように、分岐部と採血バッグの間の第１の流路（採血チューブ）に、破断すると流路が開通する封止部材を装着する手段では、（１）破断が速やかにできないとか、封止部材の破断片が発生したりする懸念がある。（２）第１の流路（採血チューブ）内に配置するため、第１の流路（採血チューブ）と異なる管状部材内に配置して、第１の流路（採血チューブ）に接続しないといけないので、構成が複雑になる。 In the inventions of Patent Literature 1 to Patent Literature 4, (1) blood is collected into a blood collection initial-flow removal bag or the like for initial blood, (2) obstruction by clamping or the like of the second flow path (initial blood tube), (3) Release of the first flow path (blood collection tube) to the blood collection bag (external clamp, sealing member that opens the flow path when broken), (4) First flow path after blood collection (blood collection tube) Work such as occlusion (clamping) was necessary. In the work procedure from (1) to (4), there is a concern that the order of (2) occlusion and (3) release will be wrong. If the order is wrong, the sterility assurance of the preparation will be reduced, and the operation until the obstruction will be delayed. There is a concern that blood collection into an initial blood collection bag or the like may be excessive.
Further, as in Patent Document 2 and Patent Document 3, the first flow path (blood collection tube) between the branch portion and the blood collection bag is equipped with a sealing member that opens the flow path when broken, (1) There is a concern that the breakage cannot be performed promptly or that a fragment of the sealing member is generated. (2) Since it is disposed in the first flow path (blood collection tube), it must be disposed in a tubular member different from the first flow path (blood collection tube) and connected to the first flow path (blood collection tube). The configuration is complicated because it must not.

特許３３６１４４０（特許請求の範囲、図１、９、１０）Patent 3361440 (Claims, FIGS. 1, 9, and 10) 特許３７７６２２７（特許請求の範囲、図１、２、１１から１３）Patent 3776227 (Claims, FIGS. 1, 2, 11 to 13) 特許３８１３９７４（特許請求の範囲、図１、２、５）Patent 3813974 (Claims, FIGS. 1, 2, 5) 特開２００１−１７５３９（特許請求の範囲、図１）JP 2001-17539 (Claims, FIG. 1)

本発明が解決しようとする問題点は、特許文献１から特許文献４の（１）から（４）の作業手順では、（２）閉塞、（３）解放の順番を間違えることが懸念され、作業者の操作ミスを防止できない懸念がある点である。
また特許文献２、３のように、破断すると流路が開通する封止部材を装着する手段では、（１）破断が速やかにできないとか、封止部材の破断片が発生したりする懸念がある。（２）第１の流路（採血チューブ）の構成が複雑になる等の点である。 The problem to be solved by the present invention is that, in the work procedures of (1) to (4) of Patent Document 1 to Patent Document 4, there is a concern that the order of (2) closing and (3) releasing may be wrong. There is a concern that an operator's operation mistake cannot be prevented.
Further, as disclosed in Patent Documents 2 and 3, with a means for attaching a sealing member that opens a flow path when it breaks, there is a concern that (1) the breakage cannot be made quickly or a fragment of the sealing member is generated. . (2) The configuration of the first flow path (blood collection tube) is complicated.

［１］本発明は、供血者より血液を採取する採血針（８）と、
採取された血液を収納する採血バッグ（４）と、
一方端が前記採血バッグ（４）に他方端が前記採血針（８）にそれぞれ連通し、前記採取された血液を前記採血バッグ（４）へ導入する採血チューブ（Ｔ１）と、
当該採血チューブ（Ｔ１）から分岐し、前記採取された血液の初流を除去する初流血液チューブ（Ｔ２）とを有する採血器具であって、
前記採血チューブ（Ｔ１）の途中に、当該採血チューブ（Ｔ１）と前記初流血液チューブ（Ｔ２）の流路切替手段（Ｖ）を配置し、
当該流路切替手段（Ｖ）に、初流血液チューブ（Ｔ２）の一端部を接続した採血器具（１）を提供する。
［２］本発明は、流路切替手段（Ｖ）は、
初流血液を、採血針（８）から採血チューブ（Ｔ１）、流路切替手段（Ｖ）を経て、初流血液チューブ（Ｔ２）へ流す時は、採血バッグ（４）側の採血チューブ（Ｔ１）の流路を遮断し、
初流血液採取後の血液を、採血針（８）から採血チューブ（Ｔ１）、流路切替手段（Ｖ）を経て、
採血バッグ（４）へ採取する時は、初流血液チューブ（Ｔ２）の流路を遮断する［１］に記載の採血器具（１）。
［３］本発明は、流路切替手段（Ｖ）は、外周に第一から第三の三つの分岐管（３３ａ、３３ｂ、３３ｃ）を有する本体（３１）と、当該本体（３１）内に回動自在に嵌合される栓体（３４）とから構成される多方活栓（３０）であり、
前記栓体（３４）は、採血針（８）側の採血チューブ（Ｔ１）が、初流血液導入チューブ（Ｔ２）と連通し、採血針（８）側の採血チューブ（Ｔ１）が、採血バッグ（４）側の採血チューブ（Ｔ１）と連通する少なくとも二つの第一流路（３６ａ）、第二流路（３６ｂ）を有する［１］または［２］に記載の採血器具（１）を提供する。
［４］本発明は、前記多方活栓（３０）に、栓体（３４）の逆操作を防止するための逆操作防止部材を装着した［３］に記載の採血器具（１）を提供する。
［５］本発明は、逆操作防止部材は、本体（３１）の内壁に形成された突起（４１）と栓体（３４）の外壁に形成された係止部材（４２）または本体（３１）の内壁に形成された係止部材（４２）と栓体（３４）の外壁に形成された突起（４１）で［４］に記載の採血器具（１）を提供する。 [1] The present invention provides a blood collection needle (8) for collecting blood from a blood donor,
A blood collection bag (4) for storing the collected blood;
A blood collection tube (T1) having one end communicating with the blood collection bag (4) and the other end communicating with the blood collection needle (8), respectively, and introducing the collected blood into the blood collection bag (4);
A blood collection device having an initial blood tube (T2) that branches off from the blood collection tube (T1) and removes the initial flow of the collected blood,
In the middle of the blood collection tube (T1), a flow path switching means (V) between the blood collection tube (T1) and the initial flow blood tube (T2) is disposed,
A blood collection device (1) is provided in which one end portion of the initial blood tube (T2) is connected to the flow path switching means (V).
[2] In the present invention, the flow path switching means (V)
When the primary blood flows from the blood collection needle (8) through the blood collection tube (T1) and the flow path switching means (V) to the primary blood tube (T2), the blood collection tube (T1) on the blood collection bag (4) side is used. )
After the initial blood collection, the blood is collected from the blood collection needle (8) through the blood collection tube (T1) and the flow path switching means (V).
When collecting into the blood collection bag (4), the blood collection device (1) according to [1], wherein the flow path of the initial blood tube (T2) is blocked.
[3] In the present invention, the flow path switching means (V) includes a main body (31) having first to third three branch pipes (33a, 33b, 33c) on the outer periphery, and the main body (31). A multi-way stopcock (30) composed of a plug (34) that is rotatably fitted;
In the stopper (34), the blood collection tube (T1) on the blood collection needle (8) side communicates with the initial flow blood introduction tube (T2), and the blood collection tube (T1) on the blood collection needle (8) side is connected to the blood collection bag. (4) The blood collection device (1) according to [1] or [2], which has at least two first flow paths (36a) and second flow paths (36b) communicating with the side blood collection tube (T1). .
[4] The present invention provides the blood collection device (1) according to [3], wherein the multi-way cock (30) is provided with a reverse operation preventing member for preventing reverse operation of the plug (34).
[5] In the present invention, the reverse operation preventing member includes the protrusion (41) formed on the inner wall of the main body (31) and the locking member (42) or the main body (31) formed on the outer wall of the plug (34). The blood collection device (1) according to [4] is provided by a locking member (42) formed on the inner wall of the lip and a protrusion (41) formed on the outer wall of the plug (34).

［６］本発明は、流路切替手段（Ｖ）は、外周に、少なくとも二つ以上の分岐管（６３、６４、６５）を有する外筒（６１）と、
当該外筒（６１）内にスライドないし回動できるように装着される内筒（６２）とから構成されるスライド式流路切替手段（６０、６０Ａ、６０Ｂ、６０Ｃ、６０Ｄ、６０Ｅ、６０Ｆ）であり、
前記内筒（６２）は、採血針（８）側の採血チューブ（Ｔ１）が、初流血液導入チューブ（Ｔ２）と連通し、採血針（８）側の採血チューブ（Ｔ１）が、採血バッグ（４）側の採血チューブ（Ｔ１）と連通する流路（６２ａ、６２ｃ）を有し、
前記各分岐管（６３、６４、６５）は、それぞれ開口部（６３ａ、６４ａ、６５ａ）を経て、内筒（６２）の流路（６２ａ、６２ｃ）と連通する［１］または［２］に記載の採血器具（１）を提供する。
［７］本発明は、前記スライド式流路切替手段（６０、６０Ａ、６０Ｂ、６０Ｅ、６０Ｆ）は、
前記外筒（６１）の略下部に、係合部（６１ｂ）が形成され、前記内筒（６２）の略下部に、係合部（６２ｂ）が形成された［１］から［２］、［６］のいずれか１項に記載の採血器具（１）を提供する。
［８］本発明は、前記スライド式流路切替手段（６０、６０Ｄ、６０Ｅ）は、
内筒（６２）の略中腹部から上部の間に流路（６２ａ）が形成され、
当該流路（６２ａ）の上部には、少なくとも一つ以上のパッキング（６６、６７）が装着され、
前記流路（６２ａ）の下部には、少なくとも二つ以上のパッキング（６８、６９、７０）が装着されている［１］から［２］、［６］から［７］のいずれか１項に記載の採血器具（１）を提供する。
［９］本発明は、前記スライド式流路切替手段（６０Ａ、６０Ｂ、６０Ｃ、６０Ｆ）は、
内筒（６２）の上部または下部に分岐管（６４）が形成され、内筒（６２）の内部に分岐管（６４）と連通する流路（６２ｃ）が形成されている［１］から［２］、［６］から［８］のいずれか１項に記載の採血器具（１）を提供する。
［１０］本発明は、前記スライド式流路切替手段（６０Ａ、６０Ｂ、６０Ｃ、６０Ｆ）は、流路（６２ｃ）の開口部（６２ｄ）よりも上部に、少なくとも一つのパッキング（６６、６７）が装着され、流路（６２ｃ）の開口部（６２ｄ）よりも下部に、少なくとも二つのパッキング（６６、６７）が装着されている［１］から［２］、［６］から［９］のいずれか１項に記載の採血器具（１）を提供する。 [6] In the present invention, the flow path switching means (V) includes an outer cylinder (61) having at least two or more branch pipes (63, 64, 65) on the outer periphery,
By slide type flow path switching means (60, 60A, 60B, 60C, 60D, 60E, 60F) composed of an inner cylinder (62) mounted so as to be slidable or rotatable in the outer cylinder (61). Yes,
In the inner cylinder (62), the blood collection tube (T1) on the blood collection needle (8) side communicates with the initial flow blood introduction tube (T2), and the blood collection tube (T1) on the blood collection needle (8) side communicates with the blood collection bag. (4) having flow paths (62a, 62c) communicating with the side blood collection tube (T1);
Each said branch pipe (63, 64, 65) is connected to the flow path (62a, 62c) of an inner cylinder (62) through [1] or [2] through an opening part (63a, 64a, 65a), respectively. A blood collection device (1) as described is provided.
[7] In the present invention, the sliding flow path switching means (60, 60A, 60B, 60E, 60F)
[1] to [2], in which an engaging part (61b) is formed in a substantially lower part of the outer cylinder (61), and an engaging part (62b) is formed in a substantially lower part of the inner cylinder (62). The blood collection device (1) according to any one of [6] is provided.
[8] In the present invention, the slide type flow path switching means (60, 60D, 60E)
A flow path (62a) is formed between the substantially middle abdomen and the upper part of the inner cylinder (62),
At least one or more packings (66, 67) are attached to the upper part of the flow path (62a),
At least two or more packings (68, 69, 70) are attached to the lower part of the flow path (62a), according to any one of [1] to [2] and [6] to [7] A blood collection device (1) as described is provided.
[9] In the present invention, the slide type flow path switching means (60A, 60B, 60C, 60F)
The branch pipe (64) is formed in the upper part or the lower part of the inner cylinder (62), and the flow path (62c) communicating with the branch pipe (64) is formed in the inner cylinder (62). [2] A blood collection device (1) according to any one of [6] to [8] is provided.
[10] In the present invention, the slide-type flow path switching means (60A, 60B, 60C, 60F) has at least one packing (66, 67) above the opening (62d) of the flow path (62c). And at least two packings (66, 67) below the opening (62d) of the flow path (62c). [1] to [2], [6] to [9] A blood collection device (1) according to any one of the above is provided.

［１１］本発明は、外周に、少なくとも二つ以上の分岐管（６３、６４、６５）を有する外筒（６１）と、
当該外筒（６１）内にスライドないし回動できるように装着される内筒（６２）とから構成され、
前記内筒（６２）は、前記分岐管（６３、６４、６５）に接続されたチューブ（Ｔ１、Ｔ２）と連通する流路（６２ａ、６２ｃ）を有し、
前記各分岐管（６３、６４、６５）は、それぞれ開口部（６３ａ、６４ａ、６５ａ）を経て、内筒（６２）の流路（６２ａ、６２ｃ）と連通するスライド式流路切替手段（６０、６０Ａ、６０Ｂ、６０Ｃ、６０Ｄ、６０Ｅ、６０Ｆ）を提供する。
［１２］本発明は、前記スライド式流路切替手段（６０、６０Ａ、６０Ｂ、６０Ｅ、６０Ｆ）は、
前記外筒（６１）の略下部に係合部（６１ｂ）が形成され、前記各分岐管（６３、６４、６５）は、それぞれ開口部（６３ａ、６４ａ、６５ａ）を経て、内筒（６２）の流路（６２ａ、６２ｃ）と連通し、
前記内筒（６２）の略下部に、係合部（６２ｂ）が形成された［１１］に記載のスライド式流路切替手段（６０、６０Ａ、６０Ｂ、６０Ｅ、６０Ｆ）を提供する。
［１３］本発明は、前記スライド式流路切替手段（６０、６０Ｄ、６０Ｅ）は、
内筒（６２）の略中腹部から上部の間に流路（６２ａ）が形成され、
当該流路（６２ａ）の上部には、少なくとも一つ以上のパッキング（６６、６７）が装着され、
前記流路（６２ａ）の下部には、少なくとも二つ以上のパッキング（６８、６９、７０）が装着されている［１１］または［１２］に記載のスライド式流路切替手段（６０、６０Ｄ、６０Ｅ）を提供する。
［１４］本発明は、前記スライド式流路切替手段（６０Ａ、６０Ｂ、６０Ｃ、６０Ｆ）は、
内筒（６２）の上部または下部に分岐管（６４）が形成され、内筒（６２）の内部に分岐管（６４）と連通する流路（６２ｃ）が形成されている［１１］から［１３］のいずれか１項に記載のスライド式流路切替手段（６０Ａ、６０Ｂ、６０Ｃ、６０Ｆ）を提供する。
［１５］本発明は、前記スライド式流路切替手段（６０Ａ、６０Ｂ、６０Ｃ、６０Ｆ）は、流路（６２ｃ）の開口部（６２ｄ）よりも上部に、少なくとも一つのパッキング（６６、６７）が装着され、流路（６２ｃ）の開口部（６２ｄ）よりも下部に、少なくとも二つのパッキング（６６、６７）が装着されている［１１］から［１４］のいずれか１項に記載のスライド式流路切替手段（６０Ａ、６０Ｂ、６０Ｃ、６０Ｆ）を提供する。 [11] The present invention provides an outer cylinder (61) having at least two or more branch pipes (63, 64, 65) on the outer periphery;
An inner cylinder (62) mounted so as to slide or rotate in the outer cylinder (61),
The inner cylinder (62) has flow paths (62a, 62c) communicating with tubes (T1, T2) connected to the branch pipes (63, 64, 65),
Each of the branch pipes (63, 64, 65) is slidable flow path switching means (60) communicating with the flow paths (62a, 62c) of the inner cylinder (62) through the openings (63a, 64a, 65a), respectively. , 60A, 60B, 60C, 60D, 60E, 60F).
[12] In the present invention, the sliding flow path switching means (60, 60A, 60B, 60E, 60F)
An engaging portion (61b) is formed in a substantially lower portion of the outer cylinder (61), and the branch pipes (63, 64, 65) are respectively passed through openings (63a, 64a, 65a) and the inner cylinder (62 ) And the flow path (62a, 62c) of
The slide-type flow path switching means (60, 60A, 60B, 60E, 60F) according to [11], in which an engaging portion (62b) is formed in a substantially lower portion of the inner cylinder (62), is provided.
[13] In the present invention, the sliding flow path switching means (60, 60D, 60E)
A flow path (62a) is formed between the substantially middle abdomen and the upper part of the inner cylinder (62),
At least one or more packings (66, 67) are attached to the upper part of the flow path (62a),
At least two or more packings (68, 69, 70) are attached to the lower part of the flow path (62a). The sliding flow path switching means (60, 60D, 60E).
[14] In the present invention, the sliding flow path switching means (60A, 60B, 60C, 60F)
The branch pipe (64) is formed in the upper part or the lower part of the inner cylinder (62), and the flow path (62c) communicating with the branch pipe (64) is formed in the inner cylinder (62). 13] is provided. The slide-type flow path switching means (60A, 60B, 60C, 60F) according to any one of [13] is provided.
[15] In the present invention, the slide type flow path switching means (60A, 60B, 60C, 60F) has at least one packing (66, 67) above the opening (62d) of the flow path (62c). The slide according to any one of [11] to [14], in which at least two packings (66, 67) are mounted below the opening (62d) of the flow path (62c). A type flow path switching means (60A, 60B, 60C, 60F) is provided.

［１６］本発明は、外周に第一から第三の三つの分岐管（３３ａ、３３ｂ、３３ｃ）を有する本体（３１）と、当該本体（３１）内に回動自在に嵌合される栓体（３４）とから構成され、
前記栓体（３４）は、前記分岐管（３３ａ、３３ｂ、３３ｃ）に接続されたチューブ（Ｔ１、Ｔ２）と連通する少なくとも二つの第一流路（３６ａ）、第二流路（３６ｂ）を有し、
前記栓体（３４）の逆操作を防止するための逆操作防止部材を装着した多方活栓（３０）を提供する。
［１７］本発明は、前記逆操作防止部材は、本体（３１）の内壁に形成された突起（４１）と栓体（３４）の外壁に形成された係止部材（４２）または本体（３１）の内壁に形成された係止部材（４２）と栓体（３４）の外壁に形成された突起（４１）である［１６］に記載の多方活栓（３０）を提供する。 [16] The present invention includes a main body (31) having first to third branch pipes (33a, 33b, 33c) on the outer periphery, and a plug that is rotatably fitted in the main body (31). Body (34) and
The plug (34) has at least two first flow paths (36a) and second flow paths (36b) communicating with the tubes (T1, T2) connected to the branch pipes (33a, 33b, 33c). And
A multi-way cock (30) equipped with a reverse operation preventing member for preventing reverse operation of the plug (34) is provided.
[17] In the present invention, the reverse operation preventing member includes a protrusion (41) formed on the inner wall of the main body (31) and a locking member (42) or main body (31) formed on the outer wall of the plug (34). The multi-way cock (30) according to [16], which is a locking member (42) formed on the inner wall of the outer wall and a projection (41) formed on the outer wall of the plug body (34).

本発明の採血器具は、特許文献１から特許文献４に記載の分岐部を、流路切替手段Ｖとし、当該流路切替手段Ｖに、特許文献１から特許文献４に記載の流路用封止手段（外付けのクランプ、破断すると流路が開通する封止部材等）の機能を付与したので、（１）作業者のクランプの閉め忘れ、これに伴う採血バッグへの採血初流の混入や、破断が速やかにできないとか、封止部材の破断片が発生したりする懸念が解消できる。（２）第１の流路（採血チューブ）の構造も簡略化できる。
（３）また特許文献１から特許文献４に記載の発明では、初流血液の採取から血液の採取に移行する時、第２の流路（初流血液チューブ）を流路用封止手段（外付けのクランプ）で閉塞し、さらに第１の流路（採血チューブ）の流路用封止手段（外付けのクランプ）を開放する等、二ステップの操作が必要であるが、本発明は、流路切替手段Ｖを切り替えるのみで済むので、これらの操作がワンステップで容易となるとともにどちらかの操作を忘れる等の操作ミスを防止できる。（４）また特許文献１から特許文献４に記載の発明では、第１の流路（採血チューブ）と第２の流路（初流血液チューブ）に、複数の流路用封止手段（外付けのクランプ、破断すると流路が開通する封止部材）を装着する旨が記載されているが、本発明では、これらの流路用封止手段を、全て廃止し、一つの流路切替手段Ｖで、複数の流路用封止手段の役割を代替することができる。
（５）操作する部分が一か所なので操作が単純化され操作ミスが減る。
（６）すべての操作を片手で行うことができる（特許文献２、３の破断すると流路が開通する封止部材は両手が必要）。
（７）特許文献１から４の複数の流路用封止手段（外付けのクランプ、破断すると流路が開通する封止部材）と分岐管の働きを一つの部品にまとめるため組立工数が減り、製品全体がシンプルになる。 The blood collection device of the present invention uses the branch portion described in Patent Document 1 to Patent Document 4 as the flow path switching means V, and the flow path switching means V includes the flow path seal described in Patent Document 1 to Patent Document 4. Since the function of stopping means (external clamp, sealing member that opens the flow path when it breaks, etc.) was added, (1) The operator forgot to close the clamp, and the blood sample was mixed into the blood collection bag. In addition, it is possible to eliminate the concern that the breakage cannot be performed quickly or that a fragment of the sealing member is generated. (2) The structure of the first flow path (blood collection tube) can also be simplified.
(3) In the inventions described in Patent Document 1 to Patent Document 4, when shifting from the collection of initial blood to the collection of blood, the second flow path (initial flow blood tube) is connected to a flow path sealing means ( It is necessary to perform a two-step operation such as closing with an external clamp) and opening the flow path sealing means (external clamp) of the first flow path (blood collection tube). Since it is only necessary to switch the flow path switching means V, these operations can be facilitated in one step, and operation mistakes such as forgetting one of the operations can be prevented. (4) Further, in the inventions described in Patent Document 1 to Patent Document 4, a plurality of flow path sealing means (outside) are provided in the first flow path (blood collection tube) and the second flow path (initial flow blood tube). However, in the present invention, all of these flow path sealing means are abolished, and one flow path switching means is provided. V can replace the role of a plurality of flow path sealing means.
(5) Since there is only one part to be operated, the operation is simplified and operation errors are reduced.
(6) All the operations can be performed with one hand (the sealing member that opens the flow path when both of Patent Documents 2 and 3 are broken requires both hands).
(7) Since the functions of the plurality of flow path sealing means (external clamp, sealing member that opens the flow path when broken) and the branch pipe are combined into one part, the number of assembly steps is reduced. , The whole product becomes simple.

図１は、本発明の採血器具１の概略図、図２から図１５は、流路切替手段Ｖの一例とその使用例を示す概略図である。
［採血器具１］
本発明の採血器具１は、図１に例示するように、供血者より血液を採取する採血針８と、採取された血液を収納する採血バッグ４と、一方端が前記採血バッグ４に他方端が前記採血針８にそれぞれ連通し、前記採取された血液を前記採血バッグ４へ導入する採血チューブＴ１と、当該採血チューブＴ１から分岐し、前記採取された血液の初流を除去する初流血液チューブＴ２とを有する採血器具であって、前記採血チューブＴ１の途中に、当該採血チューブＴ１と前記初流血液チューブＴ２の流路切替手段Ｖを配置し、当該流路切替手段Ｖに、初流血液チューブＴ２の端部を接続している。 FIG. 1 is a schematic view of a blood collection instrument 1 of the present invention, and FIGS. 2 to 15 are schematic views showing an example of a flow path switching means V and an example of its use.
[Blood collection instrument 1]
As illustrated in FIG. 1, the blood collection device 1 of the present invention includes a blood collection needle 8 for collecting blood from a blood donor, a blood collection bag 4 for storing the collected blood, and one end at the other end of the blood collection bag 4. Are connected to the blood collection needle 8, respectively, and a blood collection tube T1 for introducing the collected blood into the blood collection bag 4, and a first flow blood branched from the blood collection tube T1 to remove the initial flow of the collected blood A blood collection device having a tube T2, wherein a flow path switching means V between the blood collection tube T1 and the initial flow blood tube T2 is disposed in the middle of the blood collection tube T1, and the flow path switching means V has an initial flow. The end of blood tube T2 is connected.

さらに詳述すれば、採血器具１は、例えば図１に示すように、採血バッグ４、採血初流除去セット２、血液フィルタ３、第１子バッグ５、第２子バッグ６及び赤血球保存液入バッグ７から構成される。
採血バッグ４の上流には、採血チューブＴ１が接続されている。採血チューブＴ１には、先端（上流）からその途中にわたって、採血針８、流路切替手段Ｖが接続・配置されている。流路切替手段Ｖには、初流血液導入チューブＴ２を介して採血初流除去セット２が接続される。
さらに採血バッグ４の下流には、連結チューブＴ３を介して血液フィルタ３及び第１子バッグ５を接続している。さらに第１子バッグ５は、連結チューブＴ４、接続管１３、連結チューブＴ５、Ｔ６を介して、第２子バッグ６、赤血球保存液入バッグ７を接続している。
採血バッグ４及び赤血球保存液入りバッグ７には、採血時または輸血保存時における血液の凝固の防止または保存のために、例えばＡＣＤ液、ＣＰＤ液、ＭＡＰ液のような抗凝固剤または赤血球保存液を収納している。
採血初流除去バッグＢ及び採血バッグ４のバッグ類を構成する材料として、例えばポリ塩化ビニル、ポリオレフィン等の可撓性合成樹脂が用いられる。 More specifically, as shown in FIG. 1, for example, the blood collection device 1 includes a blood collection bag 4, a blood collection initial flow removal set 2, a blood filter 3, a first child bag 5, a second child bag 6, and a red blood cell storage solution. Consists of a bag 7.
A blood collection tube T 1 is connected upstream of the blood collection bag 4. A blood collection needle 8 and a flow path switching means V are connected and arranged from the tip (upstream) to the middle of the blood collection tube T1. A blood collection initial flow removal set 2 is connected to the flow path switching means V via an initial flow blood introduction tube T2.
Further, the blood filter 3 and the first child bag 5 are connected to the downstream of the blood collection bag 4 via a connecting tube T3. Further, the first child bag 5 is connected to the second child bag 6 and the red blood cell storage solution containing bag 7 through the connection tube T4, the connection tube 13, and the connection tubes T5 and T6.
The blood collection bag 4 and the erythrocyte storage solution-containing bag 7 include an anticoagulant or erythrocyte storage solution such as an ACD solution, a CPD solution, or a MAP solution for preventing or storing blood coagulation during blood collection or transfusion storage. Is housed.
As a material constituting the blood collection initial flow removal bag B and the blood collection bag 4, for example, a flexible synthetic resin such as polyvinyl chloride or polyolefin is used.

［流路切替手段Ｖ］
本発明に使用する「流路切替手段Ｖ」とは、初流血液を、採血針８から採血チューブＴ１、流路切替手段Ｖを経て、初流血液チューブＴ２へ流す時は、採血バッグ４側の採血チューブＴ１の流路を遮断し、初流血液採取後の血液を、採血針８から採血チューブＴ１、流路切替手段Ｖを経て、採血バッグ４へ採取する時は、初流血液チューブＴ２の流路を遮断するものを意味する。
本発明に使用する流路切替手段Ｖの一例として、例えば図２から図４に例示する多方活栓３０が挙げられる。
多方活栓３０は、外周に第一から第三の三つの分岐管３３ａ、３３ｂ、３３ｃを有する筒状の本体３１と、栓体３４とから構成される。
栓体３４は、本体３１内に回動自在に嵌合し、採血針８側の採血チューブＴ１が、初流血液導入チューブＴ２と連通し、採血針８側の採血チューブＴ１が、採血バッグ４側の採血チューブＴ１と連通する少なくとも二つの流路（第一流路３６ａ、第二流路３６ｂ）を有する。
第一分岐管３３ａと第二分岐管３３ｂは、それぞれ採血針８側と採血バッグ４側の採血チューブＴ１に接続され、第三分岐管３３ｃは、採血初流チューブＴ２に接続されている。
図２は、採血針８側の採血チューブＴ１が、流路切替手段Ｖの第一流路３６ａ、第二流路３６ｂを経て、初流血液導入チューブＴ２と連通している状態（以下、この初期状態という）を示す。
図３（図２の状態から栓体３４を左に９０°回動した状態）は、採血針８側の採血チューブＴ１が、流路切替手段Ｖの第一流路３６ａ、第二流路３６ｂを経て、採血バッグ４側の採血チューブＴ１と連通している状態を示す。
図４（図３の状態から栓体３４を左に９０°回動した状態、図２の状態から栓体３４を左に１８０°回動した状態）は、採血チューブＴ１、流路切替手段Ｖの第一流路３６ａ、第二流路３６ｂ、初流血液導入チューブＴ２の各流路が全て遮断された状態を示している。 [Flow path switching means V]
The “flow path switching means V” used in the present invention is the side of the blood collection bag 4 when flowing the initial flow blood from the blood collection needle 8 through the blood collection tube T1 and the flow path switching means V to the initial flow blood tube T2. When the blood flow of the first blood collection tube T1 is shut off and the blood after the initial blood collection is collected from the blood collection needle 8 through the blood collection tube T1 and the flow path switching means V into the blood collection bag 4, the first flow blood tube T2 is collected. Means to block the flow path.
An example of the flow path switching means V used in the present invention is a multiway cock 30 illustrated in FIGS. 2 to 4, for example.
The multiway cock 30 includes a cylindrical main body 31 having first to third three branch pipes 33 a, 33 b, 33 c on the outer periphery and a plug body 34.
The stopper 34 is rotatably fitted in the main body 31, the blood collection tube T 1 on the blood collection needle 8 side communicates with the primary blood introduction tube T 2, and the blood collection tube T 1 on the blood collection needle 8 side is connected to the blood collection bag 4. At least two flow paths (first flow path 36a, second flow path 36b) communicating with the blood collection tube T1 on the side.
The first branch tube 33a and the second branch tube 33b are connected to the blood collection tube T1 on the blood collection needle 8 side and the blood collection bag 4 side, respectively, and the third branch tube 33c is connected to the blood collection initial flow tube T2.
FIG. 2 shows a state in which the blood collection tube T1 on the blood collection needle 8 side communicates with the initial blood introduction tube T2 via the first flow path 36a and the second flow path 36b of the flow path switching means V (hereinafter, this initial stage). State).
In FIG. 3 (the state in which the plug 34 is rotated 90 ° to the left from the state of FIG. 2), the blood collection tube T1 on the blood collection needle 8 side passes through the first flow path 36a and the second flow path 36b of the flow path switching means V. Then, the state which is connected with the blood collection tube T1 by the side of the blood collection bag 4 is shown.
FIG. 4 (the state in which the plug body 34 is rotated 90 ° to the left from the state of FIG. 3 and the state in which the plug body 34 is rotated 180 ° to the left from the state of FIG. 2) is shown in FIG. The first flow path 36a, the second flow path 36b, and the first flow blood introduction tube T2 are all blocked.

さらに流路切替手段Ｖ（多方活栓３０）には、発展させて、図５から図１２に例示するように、栓体３４の逆操作防止部材付きの多方活栓３０Ａとすることができる。
図５は、流路切替手段Ｖ（多方活栓３０Ａ）の外観斜視図［初期状態（図２に対応）］。
図６は、栓体３４の外観斜視図［栓体３４を左に９０°回動した状態（図３対応）］。
図７は、本体３１の全体斜視図。
図８は、流路切替手段Ｖ（多方活栓３０Ａ）の透視斜視図［初期状態（図２に対応）］。
図９は、栓体３４の透視斜視図［初期状態（図２に対応）］。
図１０は、本体３１の透視斜視図。
図１１は、流路切替手段Ｖ（多方活栓３０Ａ）のＡ−Ａ縦断面図。
図１２は、流路切替手段Ｖ（多方活栓３０Ａ）の横断面図［初期状態（図２に対応）］。
図１３は、流路切替手段Ｖ（多方活栓３０Ａ）の横断面図［栓体３４を左に９０°回動した状態（図３対応）］。
図１４は、流路切替手段Ｖ（多方活栓３０Ａ）の横断面図［栓体３４を左に１８０°回動した状態（図３対応）］である。 Further, the flow path switching means V (the multi-way cock 30) can be developed to be a multi-way cock 30A with a reverse operation preventing member for the plug body 34 as illustrated in FIGS.
FIG. 5 is an external perspective view [initial state (corresponding to FIG. 2)] of the flow path switching means V (multi-way stopcock 30A).
6 is an external perspective view of the plug body 34 (a state in which the plug body 34 is rotated 90 ° to the left (corresponding to FIG. 3)).
FIG. 7 is an overall perspective view of the main body 31.
FIG. 8 is a perspective view of the flow path switching means V (multi-way stopcock 30A) [initial state (corresponding to FIG. 2)].
FIG. 9 is a perspective view of the plug 34 [initial state (corresponding to FIG. 2)].
FIG. 10 is a perspective view of the main body 31.
FIG. 11 is an AA longitudinal sectional view of the flow path switching means V (multi-way stopcock 30A).
FIG. 12 is a cross-sectional view [initial state (corresponding to FIG. 2)] of the flow path switching means V (multi-way cock 30A).
FIG. 13 is a cross-sectional view of the flow path switching means V (multi-way stopcock 30A) [state in which the plug 34 is rotated 90 ° to the left (corresponding to FIG. 3)).
FIG. 14 is a cross-sectional view of the flow path switching means V (multi-way stopcock 30A) [state in which the plug 34 is rotated 180 ° to the left (corresponding to FIG. 3)).

多方活栓３０Ａは、図２から図４に例示した多方活栓３０（外周に第一から第三の三つの分岐管３３ａ、３３ｂ、３３ｃを有する筒状の本体３１と、栓体３４とから構成される）に、「逆操作防止部材」を付加したものである。
「逆操作防止部材」とは、図６、９、１０、図１２から図１４に例示するように、例えば本体３１の内壁に形成された「突起４１」と栓体３４の外壁に形成された「係止部材４２」で、「突起４１」と「係止部材４２」の係合により、例えば左方向に回動した場合は、逆方向の右方向に回動できないようにしている。なお、あえて図示しないが、本体３１の内壁に係止部材４２を形成しても良いし、栓体３４の外壁に突起４１を形成しても良い。
さらに多方活栓３０Ａについて詳述する。
本体３１は、図５、図７、図１１に例示するように、円筒状に形成され、上部壁面ＵＷ、側部壁面ＳＷ及び下部壁面ＬＷを有する。上部壁面ＵＷの略中央部に、孔３１Ｈが形成されている。
さらに側壁ＳＷの上部位置に、第一から第三の三つの分岐管３３ａ、３３ｂ、３３ｃが装着されている。
また側部壁面ＳＷの内壁に複数の突起４１を形成している。
栓体３４は、図６、図９に例示するように、上部にハンドル３４を装着し、下部に軸５０を中心として回動するロータ５１を装着している。
さらにロータ５１の外壁に図１２から図１４に例示するように、ヒゲ状に突出した係止部材４２を装着している。さらに係止部材４２の端部には、係合部４２Ｔ２を形成している。
さらに内部に第一流路３６ａと第二流路３６ｂを形成している。
ロータ５１は、軸５０（固定ピン）により本体３１の底部に装着されている（嵌め込まれている）。
ロータ５１は、略ドーナツ状の溝５２が形成され、略ドーナツ状の溝５２が、図１１のように回転角度制御部材（固定ピン）４２Ｔ１にかぶさるように、本体３１に取り付けられている。ロータ５１は、略ドーナツ状の溝５２の範囲内で回転する。
図１２から図１４の例示では、係止部材４２の係合部４２Ｔ２と突起４１が係合し、いわゆる「係止（ラッチ）構造」となるため、一方向（左方向）のみしか回転しない。
図１２が初期状態で、図１３は図１２の状態から左に９０°回転した状態、図１４は図１３の状態からさらに左に９０°回転した状態を示す。
図１２及び図１３の例示では、突起４１と係止部材４２の係合部４２Ｔ２は、「係止（ラッチ）構造」となっているため、右へ回転することがない。
図１４の状態では、これにあわせてロータ５１の溝５２の右側終端が、回転角度制御部材（固定ピン）４２Ｔ１に衝突するため、これ以上左に回転できない。この状態で流路は全て閉塞状態であり、誤った操作による流路の開放を防止できる。
以上によりロータ５１が１８０°以上左に回転することを防止することができる。すなわち一周回って元通りの位置に戻るという誤動作を防止することができる。 The multiway cock 30A is composed of the multiway cock 30 illustrated in FIGS. 2 to 4 (a cylindrical main body 31 having first to third three branch pipes 33a, 33b, 33c on the outer periphery, and a plug body 34. And a “reverse operation preventing member”.
As shown in FIGS. 6, 9, 10, and FIGS. 12 to 14, the “reverse operation preventing member” is formed on, for example, the “projection 41” formed on the inner wall of the main body 31 and the outer wall of the plug body 34. With the “locking member 42”, when the “projection 41” and the “locking member 42” are engaged, for example, when it is rotated to the left, it cannot be rotated to the right in the opposite direction. Although not shown, the locking member 42 may be formed on the inner wall of the main body 31, or the protrusion 41 may be formed on the outer wall of the plug body 34.
Further, the multiway stopcock 30A will be described in detail.
As illustrated in FIGS. 5, 7, and 11, the main body 31 is formed in a cylindrical shape and includes an upper wall surface UW, a side wall surface SW, and a lower wall surface LW. A hole 31H is formed in a substantially central portion of the upper wall surface UW.
Furthermore, the first to third three branch pipes 33a, 33b, 33c are mounted at the upper position of the side wall SW.
A plurality of protrusions 41 are formed on the inner wall of the side wall surface SW.
As illustrated in FIGS. 6 and 9, the plug body 34 has a handle 34 attached to the upper part and a rotor 51 that rotates about the shaft 50 at the lower part.
Further, as illustrated in FIGS. 12 to 14, a locking member 42 protruding like a beard is attached to the outer wall of the rotor 51. Further, an engaging portion 42T2 is formed at the end of the locking member 42.
Furthermore, the 1st flow path 36a and the 2nd flow path 36b are formed in the inside.
The rotor 51 is mounted (fitted) to the bottom of the main body 31 by a shaft 50 (fixing pin).
The rotor 51 is formed with a substantially donut-shaped groove 52, and is attached to the main body 31 so that the substantially donut-shaped groove 52 covers the rotation angle control member (fixing pin) 42T1 as shown in FIG. The rotor 51 rotates within the range of the substantially donut-shaped groove 52.
12 to 14, the engaging portion 42T2 of the locking member 42 and the protrusion 41 are engaged to form a so-called “locking (latching) structure”, so that only one direction (left direction) rotates.
FIG. 12 shows an initial state, FIG. 13 shows a state rotated 90 ° to the left from the state of FIG. 12, and FIG. 14 shows a state further rotated 90 ° to the left from the state of FIG.
In the illustration of FIG.12 and FIG.13, since the protrusion 41 and the engaging part 42T2 of the locking member 42 have a "locking (latch) structure", they do not rotate to the right.
In the state of FIG. 14, the right end of the groove 52 of the rotor 51 collides with the rotation angle control member (fixing pin) 42T1 accordingly, so that it cannot be rotated further to the left. In this state, all the channels are closed, and the channel can be prevented from being opened due to an erroneous operation.
Thus, the rotor 51 can be prevented from rotating to the left by 180 ° or more. That is, it is possible to prevent an erroneous operation of returning to the original position after one round.

［採血器具１の使用例１］
（１）初流血液の採血
流路切替手段Ｖの流路は、図２に例示するように調整された状態で提供される。
採血針８側の採血チューブＴ１と初流血液チューブＴ２は、流路切替手段Ｖの第一流路３６ａ、第二流路３６ｂを介して連通し、流路切替手段Ｖの第一流路３６ａ、第二流路３６ｂと採血バッグ４側の採血チューブＴ１の流路を遮断した状態にする。
供血者に採血針８を穿刺して、初流血液を採血針８、採血チューブＴ１、流路切替手段Ｖの第一流路３６ａ、第二流路３６ｂ、初流血液チューブＴ２を経て、採血初流除去バッグＢに採取する。
（２）採血バッグ４への血液の採取
初流血液の採取が規定量に達した時点で、流路切替手段Ｖの流路を、図３（栓体３４を図２の位置から、左に９０°回転させた状態）に例示するように調整する。
採血針８側の採血チューブＴ１と採血バッグ４側の採血チューブＴ１は、流路切替手段Ｖの第一流路３６ａ、第二流路３６ｂを介して連通し、流路切替手段Ｖの第一流路３６ａ、第二流路３６ｂと初流血液チューブＴ２の流路を遮断した状態にする。
初流血液採取後の血液を、採血針８から採血チューブＴ１、流路切替手段Ｖの第一流路３６ａ、第二流路３６ｂを経て、採血バッグ４へ採取する。
（３）最後に、図４のように（栓体３４を図３の位置から、左に９０°回転させた状態）、採血針８側と採血バッグ４側の採血チューブＴ１、初流血液チューブＴ２、流路切替手段Ｖの第一流路３６ａ、第二流路３６ｂを全て閉塞し、バッグ本体２１の血液溜内に貯留した血液を、バッグ本体２１の出口に接続される真空採血管ホルダ２２から真空採血管へと採取する。 [Usage example 1 of blood collection device 1]
(1) Collection of initial blood The flow channel of the flow channel switching means V is provided in a state adjusted as illustrated in FIG.
The blood collection tube T1 and the first flow blood tube T2 on the blood collection needle 8 side communicate with each other via the first flow path 36a and the second flow path 36b of the flow path switching means V, and the first flow path 36a and the first flow path 36a of the flow path switching means V. The two flow paths 36b and the blood collection tube T1 on the blood collection bag 4 side are closed.
A blood donor is punctured with a blood collection needle 8, and the first blood is collected through the blood collection needle 8, the blood collection tube T1, the first flow path 36a, the second flow path 36b of the flow path switching means V, and the first flow blood tube T2. Collect in flow removal bag B.
(2) Collection of blood into blood collection bag 4 When the collection of initial blood reaches a specified amount, the flow path of the flow path switching means V is moved to the left in FIG. The state is adjusted as exemplified in the state rotated 90 °.
The blood collection tube T1 on the blood collection needle 8 side and the blood collection tube T1 on the blood collection bag 4 side communicate with each other via the first flow path 36a and the second flow path 36b of the flow path switching means V, and the first flow path of the flow path switching means V. 36a, the second flow path 36b and the flow path of the first blood tube T2 are blocked.
The blood after the initial flow blood collection is collected from the blood collection needle 8 to the blood collection bag 4 through the blood collection tube T1, the first flow path 36a and the second flow path 36b of the flow path switching means V.
(3) Finally, as shown in FIG. 4 (the plug 34 is rotated 90 ° counterclockwise from the position shown in FIG. 3), the blood collection tube T1 on the blood collection needle 8 side and the blood collection bag 4 side, and the initial flow blood tube T2, the first flow path 36a and the second flow path 36b of the flow path switching means V are all closed, and the blood collected in the blood reservoir of the bag body 21 is connected to the outlet of the bag body 21. To the vacuum blood collection tube.

［スライド式流路切替手段］
本発明に使用する流路切替手段Ｖの一例として、例えば図１５から図１９に例示するスライド式流路切替手段６０が挙げられる。
図１５から図１９は、スライド式流路切替手段６０の概略とその使用例の一例を示す。（図１５から図１７は縦断面図、図１８は内筒６０を装着した外筒６１の斜視図、図１９は内筒６２の斜視図）である。
スライド式流路切替手段６０は、外筒６１と内筒６２とから構成され、内筒６２は外筒６１内にスライドないし回動できるように装着される。 [Sliding channel switching means]
As an example of the flow path switching means V used in the present invention, for example, a slide type flow path switching means 60 illustrated in FIGS.
15 to 19 show an example of the slide type flow path switching means 60 and an example of its use. (FIGS. 15 to 17 are longitudinal sectional views, FIG. 18 is a perspective view of an outer cylinder 61 fitted with an inner cylinder 60, and FIG. 19 is a perspective view of an inner cylinder 62).
The slide type flow path switching means 60 includes an outer cylinder 61 and an inner cylinder 62, and the inner cylinder 62 is mounted in the outer cylinder 61 so as to slide or rotate.

［外筒６１］
外筒６１は、図１５、１８に例示するように、上部と下部が開放され、略下部に係合部（溝）６１ｂが形成されている。
外筒６１の周囲には、第一から第三の三つの分岐管６３、６４、６５が実質的に等間隔（距離ともいう）Ｌ１で装着され、当該各分岐管６３、６４、６５は、それぞれ開口部６３ａ、６４ａ、６５ａを経て、外筒６１の内部空間［内筒６２を装着した場合は、内筒６２の凹部６２ａ（流路）］と連通している。
分岐管６３、６４、６５の装着位置の略中心は、実質的に各開口部６３ａ、６４ａ、６５ａの略中心と同じである。このため各開口部６３ａ、６４ａ、６５ａも実質的に等間隔（距離ともいう）Ｌ１で形成されている。
また係合部（溝）６１ｂの深さＬ５は、第一から第３開口部６３ａ、６４ａ、６５ａの各間隔（距離）Ｌ１と実質的に同じとなるよう形成されている。 [Outer cylinder 61]
As illustrated in FIGS. 15 and 18, the outer cylinder 61 has an upper portion and a lower portion that are open, and an engaging portion (groove) 61 b is formed in a substantially lower portion.
Around the outer cylinder 61, three first to third branch pipes 63, 64, 65 are mounted at substantially equal intervals (also referred to as distances) L1, and each of the branch pipes 63, 64, 65 is Via the openings 63a, 64a, 65a, the inner space of the outer cylinder 61 [when the inner cylinder 62 is mounted, the inner cylinder 62 has a recess 62a (flow path)] communicates.
The approximate center of the mounting position of the branch pipes 63, 64, 65 is substantially the same as the approximate center of each opening 63a, 64a, 65a. Therefore, the openings 63a, 64a, 65a are also formed at substantially equal intervals (also referred to as distances) L1.
Further, the depth L5 of the engaging portion (groove) 61b is formed to be substantially the same as the distance (distance) L1 between the first to third openings 63a, 64a, 65a.

［内筒６２］
図１４に例示するように、内筒６２の略下部の側部には、係合部（凸部）６２ｂが形成されている。
内筒６２の略中腹部から上部の間に凹部６２ａが形成され、外筒６１内に装着すると、図１５に例示するように当該凹部６２ａが流路として機能する。
凹部６２ａの上部には、二つの第一パッキング６６と第二パッキング６７が装着されている。これらの間隔（距離ともいう）Ｌ２は、前記外筒１の各開口部６３ａ、６４ａ、６５ａ間の間隔（距離ともいう）Ｌ１と実質的に同じに形成されている。
さらに凹部６２ａの下部には、三つの第三パッキング６８、第四パッキング６９及び第五パッキング７０が装着されている。
これらの間隔（距離Ｌ２）は、前記外筒６１の各開口部６３ａ、６４ａ、６５ａ間の間隔（距離Ｌ１）と実質的に同じに形成されている。
また係合部（凸部）６２ｂの幅Ｗ１は、外筒６１の係合部（溝）６１ｂの幅Ｗ２より若干狭く形成されている。
また第二パッキング６７と第三パッキング６８の間隔（距離ともいう）Ｌ３は、前記外筒６１の各開口部６３ａ、６４ａ、６５ａ間の間隔（距離Ｌ１）より実質的に約二倍の間隔（距離）に形成されている。
図１５から１９の例示では、内筒６２の係合部６２ｂは凸部にしているが、溝にしてもよい。この場合、外筒６１の係合部６１ｂ（溝）は、凸部となる。
なお内筒６２の上部と下部は、閉塞していてもよいし、開放されていてもよい。 [Inner cylinder 62]
As illustrated in FIG. 14, an engaging portion (convex portion) 62 b is formed on a substantially lower side portion of the inner cylinder 62.
When a concave portion 62a is formed between the substantially middle portion and the upper portion of the inner cylinder 62 and mounted in the outer cylinder 61, the concave portion 62a functions as a flow path as illustrated in FIG.
Two first packing 66 and second packing 67 are mounted on the upper part of the recess 62a. These intervals (also referred to as distances) L2 are formed substantially the same as the intervals (also referred to as distances) L1 between the openings 63a, 64a, 65a of the outer cylinder 1.
Furthermore, three third packings 68, a fourth packing 69, and a fifth packing 70 are attached to the lower part of the recess 62a.
These intervals (distance L2) are formed substantially the same as the intervals (distance L1) between the openings 63a, 64a, 65a of the outer cylinder 61.
The width W1 of the engaging portion (convex portion) 62b is slightly narrower than the width W2 of the engaging portion (groove) 61b of the outer cylinder 61.
An interval (also referred to as a distance) L3 between the second packing 67 and the third packing 68 is substantially twice an interval (distance L1) between the openings 63a, 64a, 65a of the outer cylinder 61 (distance L1). Distance).
15 to 19, the engaging portion 62b of the inner cylinder 62 is a convex portion, but may be a groove. In this case, the engaging part 61b (groove) of the outer cylinder 61 becomes a convex part.
In addition, the upper part and the lower part of the inner cylinder 62 may be obstruct | occluded and may be open | released.

図１５は、内筒６２を外筒６１内に挿入した初期状態を示す。
第一開口部６３ａは第一パッキング６６と第二パッキング６７間に、第二開口部６４ａ及び第三開口部６５ａは第二パッキング６７と第三パッキング６８の間にある。
このとき、外筒６１下端から係合部（凸部）６２ｂ上端の間隔（距離ともいう）Ｌ４は第一から第三開口部６３ａ、６４ａ、６５ａの間隔（距離ともいう）Ｌ１と実質的に同じである。
第一分岐管６３の流路は、第一パッキング６６と第二パッキング６７により、第二分岐管６４と第三分岐管６５の流路から隔絶されているため閉塞状態である。
第二分岐管６４と第三分岐管６５の流路は、第二パッキング６７と第三パッキング６８に挟まれている流路６２ａによって連通している。 FIG. 15 shows an initial state in which the inner cylinder 62 is inserted into the outer cylinder 61.
The first opening 63 a is between the first packing 66 and the second packing 67, and the second opening 64 a and the third opening 65 a are between the second packing 67 and the third packing 68.
At this time, the interval (also referred to as distance) L4 from the lower end of the outer cylinder 61 to the upper end of the engaging portion (convex portion) 62b is substantially the same as the interval (also referred to as distance) L1 between the first to third openings 63a, 64a, 65a. The same.
The flow path of the first branch pipe 63 is closed because it is isolated from the flow paths of the second branch pipe 64 and the third branch pipe 65 by the first packing 66 and the second packing 67.
The flow paths of the second branch pipe 64 and the third branch pipe 65 are communicated by a flow path 62 a sandwiched between the second packing 67 and the third packing 68.

図１６は、図１５の状態から内筒６２を上方向にスライドさせ、内筒６２の係合部６２ｂを外筒６１の下端に触れるまで挿入した状態を示す。
第一開口部６３ａ及び第二開口部６４ａは第二パッキング６７と第三パッキング６８間に、第三開口部６５ａは第三パッキング６８と第四パッキング６９の間にある。
第一分岐管６３と第二分岐管６４の流路は、第二パッキング６７と第三パッキング６８に挟まれている液体通路６２ａによって連通している。
第三分岐管６５の流路は第三パッキング６８と第四パッキング６９により、第一分岐管６３と第二分岐管６４の流路から隔絶されているため閉塞状態である。 FIG. 16 shows a state in which the inner cylinder 62 is slid upward from the state of FIG. 15 and the engaging portion 62 b of the inner cylinder 62 is inserted until it touches the lower end of the outer cylinder 61.
The first opening 63 a and the second opening 64 a are between the second packing 67 and the third packing 68, and the third opening 65 a is between the third packing 68 and the fourth packing 69.
The flow paths of the first branch pipe 63 and the second branch pipe 64 communicate with each other by a liquid passage 62 a sandwiched between the second packing 67 and the third packing 68.
The flow path of the third branch pipe 65 is closed because it is isolated from the flow paths of the first branch pipe 63 and the second branch pipe 64 by the third packing 68 and the fourth packing 69.

図１７は、図１６の状態から内筒６２を回転させ係合部（凸部）６２ｂを係合部（溝）６１ｂに係合させて、係合部（溝）６１ｂの上端に係合部（凸部）６２ｂの上端が触れるまで挿入した状態を示す。
このとき外筒６１の下端から係合部（溝）６１ｂの上端までの長さ（係合部（溝）６１ｂの深さ）Ｌ５は第一から第３開口部６３ａ、６４ａ、６５ａの間隔（距離ともいう）Ｌ１と実質的に同じである。
第一開口部６３ａは第二パッキング６７と第三パッキング６８間に、第二開口部６４ａは第三パッキング６８と第四パッキング６９の間、第三開口部６５ａは第四パッキング６９と第五パッキング７０の間にある。
このとき第一分岐管６３と第二分岐管６４の流路は、第三パッキング６８に、第二分岐管６４と第三分岐管６５の流路は、第四パッキング６９によりそれぞれ隔絶されているため連通せず、それぞれが閉塞した状態である。 FIG. 17 shows a state where the inner cylinder 62 is rotated from the state of FIG. 16 to engage the engaging portion (convex portion) 62b with the engaging portion (groove) 61b, and the engaging portion on the upper end of the engaging portion (groove) 61b. (Projection) 62b is shown inserted until the upper end touches.
At this time, the length (depth of the engaging portion (groove) 61b) L5 from the lower end of the outer cylinder 61 to the upper end of the engaging portion (groove) 61b is an interval between the first to third openings 63a, 64a, 65a ( It is substantially the same as L1 (also called distance).
The first opening 63a is between the second packing 67 and the third packing 68, the second opening 64a is between the third packing 68 and the fourth packing 69, and the third opening 65a is the fourth packing 69 and the fifth packing. Between 70.
At this time, the flow paths of the first branch pipe 63 and the second branch pipe 64 are isolated by the third packing 68, and the flow paths of the second branch pipe 64 and the third branch pipe 65 are isolated by the fourth packing 69, respectively. Therefore, they are not communicated and are in a closed state.

例えば、第二分岐管６４の流路から第一分岐管６３の流路または第三分岐管６５の流路へ液体が流れることを切り替えるとすると、図１５では、第二分岐管６４の流路から第三分岐管６５の流路へ流れ、図１６では、第二分岐管６４の流路から第一分岐管６３の流路へ流れる。図１７ではすべての流路が閉塞する。
図１７で内筒６２を外筒６１へ挿入すると内筒６２がすべて外筒６１に覆われるため内筒６２を抜き取る方向への操作を禁止できる。これにより、いったん閉塞した通路が再び解放されることを防止することができる。 For example, if the flow of the liquid from the flow path of the second branch pipe 64 to the flow path of the first branch pipe 63 or the flow path of the third branch pipe 65 is switched, in FIG. From the second branch pipe 64 to the first branch pipe 63 in FIG. In FIG. 17, all the flow paths are closed.
When the inner cylinder 62 is inserted into the outer cylinder 61 in FIG. 17, the inner cylinder 62 is entirely covered with the outer cylinder 61, so that an operation in the direction of extracting the inner cylinder 62 can be prohibited. Thereby, it is possible to prevent the passage once closed from being released again.

［採血器具１の使用例２］
流路切替手段Ｖとして、スライド式流路切替手段６０を使用した場合の一例について説明する。図１５から図１７に例示するように、第一分岐管６３は、採血チューブＴ１を介して、採血バッグ４に接続され、第二分岐管６４は、採血チューブＴ１を介して、採血針８に接続され、第三分岐管６５は、初流血液チューブＴ２を介して、採血初流除去バッグＢに接続されている。
（１）初流血液の採血
流路切替手段Ｖ（スライド式流路切替手段６０）の流路を、図１５に例示するように調整する。
第二分岐管６４と第三分岐管６５の流路を、第二パッキング６７と第三パッキング６８に挟まれている流路６２ａによって連通させ、第一分岐管６３の流路を第一パッキング６６と第二パッキング６７により第二分岐管６４と第三分岐管６５の流路から隔絶し、閉塞状態にする。
すなわち、採血針８側の採血チューブＴ１と初流血液チューブＴ２は、スライド式流路切替手段６０の第二分岐管６４、第二開口部６４ａ、流路６２ａ、第三開口部６５ａ、第三分岐管６５を経て、連通させ、第一分岐管６３の流路を、第二分岐管６４と第三分岐管６５の流路と遮断した状態にする。
供血者に採血針８を穿刺して、初流血液を採血針８、採血チューブＴ１、スライド式流路切替手段６０の第二分岐管６４、第二開口部６４ａ、流路６２ａ、第三開口部６５ａ、第三分岐管６５、初流血液チューブＴ２を経て、採血初流除去バッグＢに採取する。
（２）採血バッグ４への血液の採取
初流血液の採取が規定量に達した時点で、流路切替手段Ｖ（スライド式流路切替手段６０）の流路を、図１６に例示するように調整する。
第一分岐管６３と第二分岐管６４の流路を、第二パッキング６７と第三パッキング６８に挟まれている液体通路６２ａによって連通させ、第三分岐管６５の流路を、第三パッキング６８と第四パッキング９により、第一分岐管６３と第二分岐管６４の流路から隔絶して、閉塞状態にする。
すなわち採血針８側と採血バッグ４側の採血チューブＴ１は、スライド式流路切替手段６０の第二分岐管６４、第二開口部６４ａ、流路６２ａ、第一開口部６３ａ、第１分岐管６３を経て、連通し、第三分岐管６５の流路を、第一分岐管６３と第二分岐管６４の流路と遮断した状態にする。
初流血液採取後の血液を、採血針８から採血チューブＴ１、スライド式流路切替手段６０の第二分岐管６４、第二開口部６４ａ、流路６２ａ、第一開口部６３ａ、第一分岐管６３、採血チューブＴ１を経て、採血バッグ４に採取する。
（３）最後に、図１７のように、第一分岐管６３と第二分岐管６４の流路を、第三パッキング６８により、第二分岐管６４と第三分岐管６５の流路を、第四パッキング６９によりそれぞれ隔絶し、閉塞状態にする。
すなわち、採血針８側と採血バッグ４側の採血チューブＴ１、初流血液チューブＴ２、流路切替手段Ｖ（スライド式流路切替手段６０）の第一分岐管６３、第二分岐管６４、第三分岐管６５の各流路を全て閉塞し、バッグ本体２１の血液溜内に貯留した血液を、バッグ本体２１の出口に接続される真空採血管ホルダ２２から真空採血管へと採取する。 [Usage example 2 of blood collection device 1]
As an example of the flow path switching means V, an example in which the slide type flow path switching means 60 is used will be described. As illustrated in FIGS. 15 to 17, the first branch pipe 63 is connected to the blood collection bag 4 via the blood collection tube T1, and the second branch pipe 64 is connected to the blood collection needle 8 via the blood collection tube T1. The third branch pipe 65 is connected to the blood collection initial flow removal bag B through the initial flow blood tube T2.
(1) Blood collection of initial flow The flow path of the flow path switching means V (sliding flow path switching means 60) is adjusted as illustrated in FIG.
The flow paths of the second branch pipe 64 and the third branch pipe 65 are communicated by a flow path 62a sandwiched between the second packing 67 and the third packing 68, and the flow path of the first branch pipe 63 is communicated with the first packing 66. The second packing 67 isolates the second branch pipe 64 and the third branch pipe 65 from the flow path and closes them.
That is, the blood collection tube T1 and the first flow blood tube T2 on the blood collection needle 8 side are the second branch pipe 64, the second opening 64a, the flow path 62a, the third opening 65a, and the third of the sliding flow path switching means 60. The communication is made through the branch pipe 65 so that the flow path of the first branch pipe 63 is blocked from the flow path of the second branch pipe 64 and the third branch pipe 65.
A blood donor is punctured with a blood collection needle 8, and initial blood is collected from the blood collection needle 8, blood collection tube T 1, second branch pipe 64, second opening 64 a, flow path 62 a, and third opening of the sliding flow path switching means 60. The blood is collected in the blood collection initial flow removal bag B through the portion 65a, the third branch pipe 65, and the initial flow blood tube T2.
(2) Collection of blood into blood collection bag 4 When the collection of initial blood reaches a specified amount, the flow path of flow path switching means V (sliding flow path switching means 60) is illustrated in FIG. Adjust to.
The flow paths of the first branch pipe 63 and the second branch pipe 64 are communicated by a liquid passage 62a sandwiched between the second packing 67 and the third packing 68, and the flow path of the third branch pipe 65 is connected to the third packing. By 68 and the 4th packing 9, it isolate | separates from the flow path of the 1st branch pipe 63 and the 2nd branch pipe 64, and it is set as the obstruction | occlusion state.
That is, the blood collection tube T1 on the blood collection needle 8 side and the blood collection bag 4 side includes the second branch pipe 64, the second opening 64a, the flow path 62a, the first opening 63a, and the first branch pipe of the sliding flow path switching means 60. Through 63, the third branch pipe 65 is in communication with the first branch pipe 63 and the second branch pipe 64.
After the initial blood collection, blood is collected from the blood collection needle 8 to the blood collection tube T1, the second branch pipe 64, the second opening 64a, the flow path 62a, the first opening 63a, and the first branch of the sliding flow path switching means 60. The blood is collected in the blood collection bag 4 through the tube 63 and the blood collection tube T1.
(3) Finally, as shown in FIG. 17, the flow path of the first branch pipe 63 and the second branch pipe 64 is changed to the flow path of the second branch pipe 64 and the third branch pipe 65 by the third packing 68. They are isolated from each other by the fourth packing 69 to be in a closed state.
That is, the blood collection tube T1 on the blood collection needle 8 side and the blood collection bag 4 side, the initial flow blood tube T2, the first branch pipe 63, the second branch pipe 64 of the flow path switching means V (sliding flow path switching means 60), the first All the flow paths of the three-branch pipe 65 are closed, and the blood stored in the blood reservoir of the bag body 21 is collected from the vacuum blood collection tube holder 22 connected to the outlet of the bag body 21 to the vacuum blood collection tube.

［その他のスライド式流路切替手段］
図１５から図１９に例示したスライド式流路切替手段６０の代わりに、例えば
（１）図２０（Ａ）、（Ｂ）、（Ｃ）から図２１（Ａ）、（Ｂ）、（Ｃ）、
（２）図２２（Ａ）、（Ｂ）、（Ｃ）から図２３（Ａ）、（Ｂ）、（Ｃ）
（３）図２４（Ａ）、（Ｂ）から図２５（Ａ）、（Ｂ）
（４）図２６（Ａ）、（Ｂ）から図２７（Ａ）、（Ｂ）
（５）図２８（Ａ）、（Ｂ）、（Ｃ）から図２９（Ａ）、（Ｂ）、（Ｃ）
（６）図３０（Ａ）、（Ｂ）、（Ｃ）から図３１（Ａ）、（Ｂ）、（Ｃ）
に例示したスライド式流路切替手段６０Ａ、６０Ｂ、６０Ｃ、６０Ｄ、６０Ｅも使用できる。
図２０、２２、２４、２６、３０は断面図、図２１、図２３、図２５、図２７、図２９、図３１は外観斜視図である。 [Other sliding channel switching means]
Instead of the slide type flow path switching means 60 illustrated in FIGS. 15 to 19, for example, (1) FIGS. 20A, 20B, and 21C to FIGS. 21A, 21B, and 21C are used. ,
(2) FIG. 22 (A), (B), (C) to FIG. 23 (A), (B), (C)
(3) FIG. 24 (A), (B) to FIG. 25 (A), (B)
(4) FIGS. 26 (A) and (B) to FIGS. 27 (A) and (B)
(5) FIG. 28 (A), (B), (C) to FIG. 29 (A), (B), (C)
(6) FIG. 30 (A), (B), (C) to FIG. 31 (A), (B), (C)
The slide-type flow path switching means 60A, 60B, 60C, 60D, and 60E exemplified in the above can also be used.
20, 22, 24, 26, and 30 are sectional views, and FIGS. 21, 23, 25, 27, 29, and 31 are external perspective views.

［スライド式流路切替手段６０Ａ］
以下、スライド式流路切替手段６０Ａの説明で、使用する符号の複雑化を回避するために、スライド式流路切替手段６０と実質的に同じ機能を有する部分は、図１５から図１９に例示したスライド式流路切替手段６０と同じ符号を使用する。
図２０（図２１）のスライド式流路切替手段６０Ａは、外筒６１と内筒６２とから構成され、内筒６２は外筒６１内にスライドないし回動できるように装着される。
［外筒６１］
外筒６１は、図２０から図２１に例示するように、上部は上部空間Ｓの空気抜用（圧逃用）の孔７１を形成する以外は実質的に閉塞し、下部は開放されている。
略下部に係合部（溝）６１ｂが形成されている。
外筒６１の周囲（側部）には、第一と第三の二つの分岐管６３、６５が間隔（距離ともいう）Ｌ１で装着され、当該各分岐管６３、６５は、それぞれ開口部６３ａ、６５ａを経て、外筒６１の内部空間［内筒２を装着した場合は、内筒２の通路６２ｄ］と連通している。
分岐管６３、６５の装着位置の略中心は、実質的に各開口部６３ａ、６５ａの略中心と同じである。このため各開口部６３ａ、６５ａも実質的に同じ間隔（距離ともいう）Ｌ１で形成されている。
また係合部（溝）６１ｂの深さＬ５は、第一と第三開口部６３ａ、６５ａの間隔（距離）Ｌ１と実質的に同じとなるよう形成されている。 [Sliding channel switching means 60A]
Hereinafter, in the description of the slide-type flow path switching means 60A, parts that have substantially the same functions as those of the slide-type flow path switching means 60 are illustrated in FIGS. The same reference numerals as those of the slide type flow path switching means 60 are used.
20 (FIG. 21) includes a slide-type channel switching means 60A that includes an outer cylinder 61 and an inner cylinder 62, and the inner cylinder 62 is mounted in the outer cylinder 61 so as to slide or rotate.
[Outer cylinder 61]
As illustrated in FIGS. 20 to 21, the outer cylinder 61 is substantially closed except for forming an air vent (pressure relief) hole 71 in the upper space S, and the lower part is opened. .
An engaging portion (groove) 61b is formed substantially at the lower portion.
Around the outer cylinder 61 (side portions), first and third branch pipes 63 and 65 are mounted at an interval (also referred to as a distance) L1, and each of the branch pipes 63 and 65 has an opening 63a. , 65a, and communicates with the inner space of the outer cylinder 61 [the passage 62d of the inner cylinder 2 when the inner cylinder 2 is mounted].
The approximate center of the attachment position of the branch pipes 63 and 65 is substantially the same as the approximate center of each of the openings 63a and 65a. Therefore, the openings 63a and 65a are also formed at substantially the same interval (also referred to as distance) L1.
The depth L5 of the engaging portion (groove) 61b is formed to be substantially the same as the distance (distance) L1 between the first and third openings 63a and 65a.

［内筒６２］
内筒６２の略下部の側部には、係合部（凸部）６２ｂが形成されている。
内筒６２内部には、下部から略上部の間に流路６２ｃが形成され、外筒６１内に装着すると、略上部の開口部６２ｄを経て、外筒６１の第一開口部６３ａまたは第三開口部６５ａと連通する。
内筒６２の下部には、第二分岐管６４が形成され、第二開口部６４ａを経て流路６２ｃと連通する。
開口部６２ｄの上部には、二つの第一パッキング６６と第二パッキング６７が装着されている。これらの間隔（距離ともいう）Ｌ２は、前記外筒６１の各開口部６３ａ、６５ａ間の間隔（距離ともいう）Ｌ１と実質的に同じに形成されている。
さらに開口部６２ｄの下部には、三つの第三パッキング６８、第四パッキング６９及び第五パッキング７０が装着されている。
これらの間隔（距離Ｌ２）は、前記外筒６１の各開口部６３ａ、６５ａ間の間隔（距離Ｌ１）と実質的に同じに形成されている。
また係合部（凸部）６２ｂの幅Ｗ１は、外筒６１の係合部（溝）６１ｂの幅Ｗ２より若干狭く形成されている。
図２０（２１）の例示では、内筒６２の係合部６２ｂは凸部にしているが、溝にしてもよい。この場合、外筒６１の係合部６１ｂ（溝）は、凸部となる。なお内筒６２の上部は閉塞されている。 [Inner cylinder 62]
An engaging portion (convex portion) 62 b is formed on a substantially lower side portion of the inner cylinder 62.
Inside the inner cylinder 62, a flow path 62c is formed between the lower part and the substantially upper part. When the flow path 62c is mounted in the outer cylinder 61, the first opening part 63a or the third opening part 63a of the outer cylinder 61 is passed through the upper part opening part 62d. It communicates with the opening 65a.
A second branch pipe 64 is formed in the lower part of the inner cylinder 62, and communicates with the flow path 62c through the second opening 64a.
Two first packings 66 and second packings 67 are mounted on the upper part of the opening 62d. These intervals (also referred to as distances) L2 are formed substantially the same as the intervals (also referred to as distances) L1 between the openings 63a and 65a of the outer cylinder 61.
Further, three third packings 68, a fourth packing 69, and a fifth packing 70 are attached to the lower part of the opening 62d.
These intervals (distance L2) are formed substantially the same as the intervals (distance L1) between the openings 63a and 65a of the outer cylinder 61.
The width W1 of the engaging portion (convex portion) 62b is slightly narrower than the width W2 of the engaging portion (groove) 61b of the outer cylinder 61.
In the illustration of FIG. 20 (21), the engaging portion 62b of the inner cylinder 62 is a convex portion, but may be a groove. In this case, the engaging part 61b (groove) of the outer cylinder 61 becomes a convex part. The upper part of the inner cylinder 62 is closed.

図２０（図２１）（Ａ）は、内筒６２を外筒６１内に挿入した初期状態を示す。
第一開口部６３ａは第一パッキング６６と第二パッキング６７間に、第三開口部６５ａは第二パッキング６７と第三パッキング６８の間にある。
第二分岐管６４と第三分岐管６５の流路は、第二開口部６４ａ、流路６２ｃ、開口部６２ｄ、第三開口部６５ａを経て、連通している。
第一分岐管６３の流路は、第一パッキング６６と第二パッキング６７により、第二分岐管６４と第三分岐管６５の流路から隔絶されているため閉塞状態である。
このとき、外筒６１下端から係合部（凸部）６２ｂ上端の間隔（距離ともいう）Ｌ４は第一開口部６３ａと第三開口部の間隔（距離ともいう）Ｌ１と実質的に同じである。 20 (FIG. 21) (A) shows an initial state in which the inner cylinder 62 is inserted into the outer cylinder 61.
The first opening 63 a is between the first packing 66 and the second packing 67, and the third opening 65 a is between the second packing 67 and the third packing 68.
The flow paths of the second branch pipe 64 and the third branch pipe 65 communicate with each other through the second opening 64a, the flow path 62c, the opening 62d, and the third opening 65a.
The flow path of the first branch pipe 63 is closed because it is isolated from the flow paths of the second branch pipe 64 and the third branch pipe 65 by the first packing 66 and the second packing 67.
At this time, the interval (also referred to as distance) L4 from the lower end of the outer cylinder 61 to the upper end of the engaging portion (convex portion) 62b is substantially the same as the interval (also referred to as distance) L1 between the first opening 63a and the third opening. is there.

図２０（図２１）（Ｂ）は、（Ａ）の状態から内筒６２を上方向にスライドさせ、内筒６２の係合部６２ｂを外筒６１の下端に触れるまで挿入した状態を示す。
第一開口部６３ａは第二パッキング６７と第三パッキング６８間に、第三開口部６５ａは第三パッキング６８と第四パッキング６９の間にある。
第一分岐管６３と第二分岐管６４の流路は、第一開口部６３ａ、開口部６２ｄ、流路６２ｃ、第二開口部６４ａを経て、連通している。
第三分岐管６５の流路は第三パッキング６８と第四パッキング６９により、第一分岐管６３と第二分岐管６４の流路から隔絶されているため閉塞状態である。 20 (FIG. 21) and FIG. 20 (B) show a state in which the inner cylinder 62 is slid upward from the state of (A) and the engaging portion 62 b of the inner cylinder 62 is inserted until it touches the lower end of the outer cylinder 61.
The first opening 63 a is between the second packing 67 and the third packing 68, and the third opening 65 a is between the third packing 68 and the fourth packing 69.
The flow paths of the first branch pipe 63 and the second branch pipe 64 communicate with each other through the first opening 63a, the opening 62d, the flow path 62c, and the second opening 64a.
The flow path of the third branch pipe 65 is closed because it is isolated from the flow paths of the first branch pipe 63 and the second branch pipe 64 by the third packing 68 and the fourth packing 69.

図２０（図２１）（Ｃ）は、（Ｂ）の状態から内筒６２を回転させ係合部（凸部）６２ｂを係合部（溝）６１ｂに係合させて、係合部（溝）６１ｂの上端に係合部（凸部）６２ｂの上端が触れるまで挿入した状態を示す。
このとき外筒６１の下端から係合部（溝）６１ｂの上端までの長さ（係合部（溝）６１ｂの深さ）Ｌ５は第一開口部６３ａと第三開口部６５ａの間隔（距離ともいう）Ｌ１と実質的に同じである。
第一開口部６３ａは第三パッキング６８と第四パッキング６９の間に、第三開口部６５ａは第四パッキング６９と第五パッキング７０の間にある。
このとき第一分岐管６３と第二分岐管６４の流路は、第二パッキング６７と第三パッキング６８に、第二分岐管６４と第三分岐管６５の流路は、第三パッキング６８と第四パッキング６９、第四パッキング６９と第五パッキング６９によりそれぞれ隔絶されているため連通せず、それぞれが閉塞した状態である。 20 (FIG. 21) and FIG. 20 (C), the inner cylinder 62 is rotated from the state of (B), the engaging part (convex part) 62b is engaged with the engaging part (groove) 61b, and the engaging part (groove) ) A state where the upper end of 61b is inserted until the upper end of the engaging portion (convex portion) 62b touches the upper end of 61b.
At this time, the length (depth of the engaging portion (groove) 61b) L5 from the lower end of the outer cylinder 61 to the upper end of the engaging portion (groove) 61b is an interval (distance) between the first opening portion 63a and the third opening portion 65a. (Also called) L1 is substantially the same.
The first opening 63 a is between the third packing 68 and the fourth packing 69, and the third opening 65 a is between the fourth packing 69 and the fifth packing 70.
At this time, the flow path of the first branch pipe 63 and the second branch pipe 64 is the second packing 67 and the third packing 68, and the flow path of the second branch pipe 64 and the third branch pipe 65 is the third packing 68. Since the fourth packing 69, the fourth packing 69 and the fifth packing 69 are isolated from each other, they do not communicate with each other and are closed.

例えば、第二分岐管６４の流路から第一分岐管６３の流路または第三分岐管６５の流路へ液体が流れることを切り替えるとすると、（Ａ）では、第二分岐管６４の流路から第三分岐管６５の流路へ流れ、（Ｂ）では、第二分岐管６４の流路から第一分岐管６３の流路へ流れる。（Ｃ）ではすべての流路が閉塞する。
（Ｃ）で内筒６２を外筒６１へ挿入すると内筒６２がすべて外筒６１に覆われるため内筒６２を抜き取る方向への操作を禁止できる。これにより、いったん閉塞した通路が再び解放されることを防止することができる。 For example, when switching the flow of liquid from the flow path of the second branch pipe 64 to the flow path of the first branch pipe 63 or the flow path of the third branch pipe 65, in (A), the flow of the second branch pipe 64 is changed. It flows from the path to the flow path of the third branch pipe 65, and in (B), it flows from the flow path of the second branch pipe 64 to the flow path of the first branch pipe 63. In (C), all the channels are blocked.
When the inner cylinder 62 is inserted into the outer cylinder 61 in (C), the entire inner cylinder 62 is covered with the outer cylinder 61, so that the operation in the direction of extracting the inner cylinder 62 can be prohibited. Thereby, it is possible to prevent the passage once closed from being released again.

［スライド式流路切替手段６０Ｂ］
以下、スライド式流路切替手段６０Ｂの説明で、使用する符号の複雑化を回避するために、スライド式流路切替手段６０、６０Ａと実質的に同じ機能を有する部分は、スライド式流路切替手段６０、６０Ａと同じ符号を使用する。
図２２（図２３）のスライド式流路切替手段６０Ｂは、外筒６１と内筒６２とから構成され、内筒６２は外筒６１内にスライドないし回動できるように装着される。
図２０（図２１）のスライド式流路切替手段６０Ａは、内筒６２の下部（内筒６２を押す側）に採血チューブＴ１を接続する構造となっているので、内筒６２を押すときに、採血チューブＴ１が障害になるが、図２２（図２３）のスライド式流路切替手段６０Ｂは、内筒６２の上部にチューブＴ１を接続する構造とし、下部（内筒６２を押す側）に採血チューブＴ１を接続しないので、操作性が向上する。
［外筒６１］
外筒６１は、図２２から図２３に例示するように、上部と下部は開放されている。略下部に係合部（溝）６１ｂが形成されている。
外筒６１の周囲（側部）には、第一と第三の二つの分岐管６３、６５が間隔（距離ともいう）Ｌ１で装着され、当該各分岐管６３、６５は、それぞれ開口部６３ａ、６５ａを経て、外筒６１の内部空間［内筒２を装着した場合は、内筒２の通路６２ｄ］と連通している。
分岐管６３、６５の装着位置の略中心は、実質的に各開口部６３ａ、６５ａの略中心と同じである。このため各開口部６３ａ、６５ａも実質的に同じ間隔（距離ともいう）Ｌ１で形成されている。
また係合部（溝）６１ｂの深さＬ５は、第一と第三開口部６３ａ、６５ａの間隔（距離）Ｌ１と実質的に同じとなるよう形成されている。 [Sliding channel switching means 60B]
Hereinafter, in the description of the slide type flow path switching means 60B, in order to avoid complication of the codes to be used, the portion having substantially the same function as the slide type flow path switch means 60, 60A The same reference numerals as those of the means 60 and 60A are used.
22 (FIG. 23) includes an outer cylinder 61 and an inner cylinder 62, and the inner cylinder 62 is mounted in the outer cylinder 61 so as to slide or rotate.
20 (FIG. 21) has a structure in which the blood collection tube T1 is connected to the lower part of the inner cylinder 62 (on the side where the inner cylinder 62 is pressed). Although the blood collection tube T1 becomes an obstacle, the slide-type flow path switching means 60B in FIG. 22 (FIG. 23) has a structure in which the tube T1 is connected to the upper part of the inner cylinder 62, and the lower part (the side that pushes the inner cylinder 62). Since the blood collection tube T1 is not connected, the operability is improved.
[Outer cylinder 61]
As illustrated in FIGS. 22 to 23, the outer cylinder 61 is open at the top and bottom. An engaging portion (groove) 61b is formed substantially at the lower portion.
Around the outer cylinder 61 (side portions), first and third branch pipes 63 and 65 are mounted at an interval (also referred to as a distance) L1, and each of the branch pipes 63 and 65 has an opening 63a. , 65a, and communicates with the inner space of the outer cylinder 61 [the passage 62d of the inner cylinder 2 when the inner cylinder 2 is mounted].
The approximate center of the attachment position of the branch pipes 63 and 65 is substantially the same as the approximate center of each of the openings 63a and 65a. Therefore, the openings 63a and 65a are also formed at substantially the same interval (also referred to as distance) L1.
The depth L5 of the engaging portion (groove) 61b is formed to be substantially the same as the distance (distance) L1 between the first and third openings 63a and 65a.

［内筒６２］
内筒６２の略下部の側部には、係合部（凸部）６２ｂが形成されている。
内筒６２内部には、上部から略上部の間に流路６２ｃが形成され、外筒６１内に装着すると、流路６２ｃ下部の開口部６２ｄを経て、外筒６１の第一開口部６３ａまたは第三開口部６５ａと連通する。
内筒６２の上部には、第二分岐管６４が形成され、第二開口部６４ａを経て流路６２ｃと連通する。
開口部６２ｄの上部には、二つの第一パッキング６６と第二パッキング６７が装着されている。これらの間隔（距離ともいう）Ｌ２は、前記外筒１の各開口部６３ａ、６５ａ間の間隔（距離ともいう）Ｌ１と実質的に同じに形成されている。
さらに開口部６２ｄの下部には、三つの第三パッキング６８、第四パッキング６９及び第五パッキング７０が装着されている。
これらの間隔（距離Ｌ２）は、前記外筒６１の各開口部６３ａ、６５ａ間の間隔（距離Ｌ１）と実質的に同じに形成されている。
また係合部（凸部）６２ｂの幅Ｗ１は、外筒６１の係合部（溝）６１ｂの幅Ｗ２より若干狭く形成されている。
図２２から２３の例示では、内筒６２の係合部６２ｂは凸部にしているが、溝にしてもよい。この場合、外筒６１の係合部６１ｂ（溝）は、凸部となる。なお内筒６２の下部は閉塞されている。 [Inner cylinder 62]
An engaging portion (convex portion) 62 b is formed on a substantially lower side portion of the inner cylinder 62.
Inside the inner cylinder 62, a flow path 62c is formed between the upper part and the substantially upper part, and when installed in the outer cylinder 61, the first opening 63a of the outer cylinder 61 or the It communicates with the third opening 65a.
A second branch pipe 64 is formed on the upper portion of the inner cylinder 62, and communicates with the flow path 62c through the second opening 64a.
Two first packings 66 and second packings 67 are mounted on the upper part of the opening 62d. These intervals (also referred to as distances) L2 are formed substantially the same as the intervals (also referred to as distances) L1 between the openings 63a and 65a of the outer cylinder 1.
Further, three third packings 68, a fourth packing 69, and a fifth packing 70 are attached to the lower part of the opening 62d.
These intervals (distance L2) are formed substantially the same as the intervals (distance L1) between the openings 63a and 65a of the outer cylinder 61.
The width W1 of the engaging portion (convex portion) 62b is slightly narrower than the width W2 of the engaging portion (groove) 61b of the outer cylinder 61.
22 to 23, the engaging portion 62b of the inner cylinder 62 is a convex portion, but may be a groove. In this case, the engaging part 61b (groove) of the outer cylinder 61 is a convex part. The lower part of the inner cylinder 62 is closed.

図２２（図２３）（Ａ）は、内筒６２を外筒６１内に挿入した初期状態を示す。
第一開口部６３ａは第一パッキング６６と第二パッキング６７間に、第三開口部６５ａは第二パッキング６７と第三パッキング６８の間にある。
第二分岐管６４と第三分岐管６５の流路は、第二開口部６４ａ、流路６２ｃ、開口部６２ｄ、第三開口部６５ａを経て、連通している。
第一分岐管６３の流路は、第一パッキング６６と第二パッキング６７により、第二分岐管６４と第三分岐管６５の流路から隔絶されているため閉塞状態である。
このとき、外筒６１下端から係合部（凸部）６２ｂ上端の間隔（距離ともいう）Ｌ４は第一開口部６３ａと第三６５ａの間隔（距離ともいう）Ｌ１と実質的に同じである。 22 (FIG. 23) (A) shows an initial state in which the inner cylinder 62 is inserted into the outer cylinder 61.
The first opening 63 a is between the first packing 66 and the second packing 67, and the third opening 65 a is between the second packing 67 and the third packing 68.
The flow paths of the second branch pipe 64 and the third branch pipe 65 communicate with each other through the second opening 64a, the flow path 62c, the opening 62d, and the third opening 65a.
The flow path of the first branch pipe 63 is closed because it is isolated from the flow paths of the second branch pipe 64 and the third branch pipe 65 by the first packing 66 and the second packing 67.
At this time, an interval (also referred to as distance) L4 from the lower end of the outer cylinder 61 to the upper end of the engaging portion (convex portion) 62b is substantially the same as an interval (also referred to as distance) L1 between the first opening 63a and the third 65a. .

図２２（図２３）（Ｂ）は、（Ａ）の状態から内筒６２を上方向にスライドさせ、内筒６２の係合部６２ｂを外筒６１の下端に触れるまで挿入した状態を示す。
第一開口部６３ａは第二パッキング６７と第三パッキング６８間に、第三開口部６５ａは第三パッキング６８と第四パッキング６９の間にある。
第一分岐管６３と第二分岐管６４の流路は、第一開口部６３ａ、開口部６２ｄ、流路６２ｃ、第二開口部６４ａを経て、連通している。
第三分岐管６５の流路は第三パッキング６８と第四パッキング９により、第一分岐管６３と第二分岐管６４の流路から隔絶されているため閉塞状態である。 22 (FIG. 23) and FIG. 22 (B) show a state where the inner cylinder 62 is slid upward from the state of (A) and inserted until the engaging portion 62 b of the inner cylinder 62 touches the lower end of the outer cylinder 61.
The first opening 63 a is between the second packing 67 and the third packing 68, and the third opening 65 a is between the third packing 68 and the fourth packing 69.
The flow paths of the first branch pipe 63 and the second branch pipe 64 communicate with each other through the first opening 63a, the opening 62d, the flow path 62c, and the second opening 64a.
The flow path of the third branch pipe 65 is closed because it is isolated from the flow paths of the first branch pipe 63 and the second branch pipe 64 by the third packing 68 and the fourth packing 9.

図２２（図２３）（Ｃ）は、（Ｂ）の状態から内筒６２を回転させ係合部（凸部）６２ｂを係合部（溝）６１ｂに係合させて、係合部（溝）６１ｂの上端に係合部（凸部）６２ｂの上端が触れるまで挿入した状態を示す。
このとき外筒６１の下端から係合部（溝）６１ｂの上端までの長さ（係合部（溝）６１ｂの深さ）Ｌ５は第一開口部６３ａと第三開口部６５ａの間隔（距離ともいう）Ｌ１と実質的に同じである。
第一開口部６３ａは第三パッキング６８と第四パッキング６９の間に、第三開口部６５ａは第四パッキング６９と第五パッキング７０の間にある。
このとき第一分岐管６３と第二分岐管６４の流路は、第二パッキング６７と第三パッキング６８に、第二分岐管６４と第三分岐管６５の流路は、第三パッキング６８と第四パッキング６９、第四パッキング６９と第五パッキング６９によりそれぞれ隔絶されているため連通せず、それぞれが閉塞した状態である。 22 (FIG. 23) (C), the inner cylinder 62 is rotated from the state of (B), the engaging part (convex part) 62b is engaged with the engaging part (groove) 61b, and the engaging part (groove) ) A state where the upper end of 61b is inserted until the upper end of the engaging portion (convex portion) 62b touches the upper end of 61b.
At this time, the length (depth of the engaging portion (groove) 61b) L5 from the lower end of the outer cylinder 61 to the upper end of the engaging portion (groove) 61b is an interval (distance) between the first opening portion 63a and the third opening portion 65a. (Also called) L1 is substantially the same.
The first opening 63 a is between the third packing 68 and the fourth packing 69, and the third opening 65 a is between the fourth packing 69 and the fifth packing 70.
At this time, the flow path of the first branch pipe 63 and the second branch pipe 64 is the second packing 67 and the third packing 68, and the flow path of the second branch pipe 64 and the third branch pipe 65 is the third packing 68. Since the fourth packing 69, the fourth packing 69 and the fifth packing 69 are isolated from each other, they do not communicate with each other and are closed.

［スライド式流路切替手段６０Ｃ］
以下、スライド式流路切替手段６０Ｃの説明で、使用する符号の複雑化を回避するために、スライド式流路切替手段６０、６０Ａ等と実質的に同じ機能を有する部分は、スライド式流路切替手段６０、６０Ａ等と同じ符号を使用する。
図２４（図２５）のスライド式流路切替手段６０Ｃは、外筒６１と内筒６２とから構成され、内筒６２は外筒６１内にスライドないし回動できるように装着される。
［外筒６１］
外筒６１は、図２５から図２６に例示するように、上部は閉塞され、下部は開放されている。
外筒６１の周囲（側部）には、第一と第三の二つの分岐管６３、６５が実質的に間隔（距離ともいう）Ｌ１で装着され、当該各分岐管６３、６５は、それぞれ開口部６３ａ、６５ａを経て、外筒６１の内部空間［内筒２を装着した場合は、内筒２の通路６２ｃ］と連通している。
分岐管６３、６５の装着位置の略中心は、実質的に各開口部６３ａ、６５ａの略中心と同じである。このため各開口部６３ａ、６５ａも実質的に同じ間隔（距離ともいう）Ｌ１で形成されている。 [Sliding channel switching means 60C]
Hereinafter, in the description of the slide-type flow path switching means 60C, in order to avoid complication of reference numerals used, portions having substantially the same functions as the slide-type flow path switch means 60, 60A, etc. The same reference numerals as those of the switching means 60 and 60A are used.
24 (FIG. 25) includes an outer cylinder 61 and an inner cylinder 62, and the inner cylinder 62 is mounted in the outer cylinder 61 so as to slide or rotate.
[Outer cylinder 61]
As illustrated in FIGS. 25 to 26, the outer cylinder 61 is closed at the upper part and opened at the lower part.
Around the outer cylinder 61 (side portion), first and third two branch pipes 63 and 65 are mounted substantially at an interval (also referred to as a distance) L1, and each of the branch pipes 63 and 65 is respectively Via the openings 63a and 65a, the inner space of the outer cylinder 61 [the passage 62c of the inner cylinder 2 when the inner cylinder 2 is mounted] communicates with the inner space of the outer cylinder 61.
The approximate center of the attachment position of the branch pipes 63 and 65 is substantially the same as the approximate center of each of the openings 63a and 65a. Therefore, the openings 63a and 65a are also formed at substantially the same interval (also referred to as distance) L1.

［内筒６２］
内筒６２内部には、下部から略上部の間に流路６２ｃが形成され、外筒６１内に装着すると、略上部の開口部６２ｄを経て、外筒６１の第一開口部６３ａまたは第三開口部６５ａと連通する。
内筒６２の下部には、第二分岐管６４が形成され、第二開口部６４ａを経て流路６２ｃと連通する。
開口部６２ｄの上部には、第二パッキング６７が装着されている。さらに開口部６２ｄの下部には、二つの第三パッキング６８、第四パッキング６９が装着されている。
これらの間隔（距離Ｌ２）は、前記外筒６１の各開口部６３ａ、６５ａ間の間隔（距離Ｌ１）と実質的に同じに形成されている。
なお内筒６２の上部は閉塞されている。 [Inner cylinder 62]
Inside the inner cylinder 62, a flow path 62c is formed between the lower part and the substantially upper part. When the flow path 62c is mounted in the outer cylinder 61, the first opening 63a or the third opening 63a of the outer cylinder 61 passes through the opening 62d at the upper part. It communicates with the opening 65a.
A second branch pipe 64 is formed in the lower part of the inner cylinder 62, and communicates with the flow path 62c through the second opening 64a.
A second packing 67 is mounted on the upper part of the opening 62d. Further, two third packings 68 and a fourth packing 69 are mounted below the opening 62d.
These intervals (distance L2) are formed substantially the same as the intervals (distance L1) between the openings 63a and 65a of the outer cylinder 61.
The upper part of the inner cylinder 62 is closed.

図２４（図２５）（Ａ）は、内筒６２を外筒６１内に挿入した初期状態を示す。
第一開口部６３ａは第一パッキング６６の上、第三開口部６５ａは第二パッキング６７と第三パッキング６８の間にある。
第二分岐管６４と第三分岐管６５の流路は、第二開口部６４ａ、流路６２ｃ、開口部６２ｄ、第三開口部６５ａを経て、連通している。
第一分岐管６３の流路は、第一パッキング６６により、第二分岐管６４と第三分岐管６５の流路から隔絶されているため閉塞状態である。 24 (FIG. 25) (A) shows an initial state in which the inner cylinder 62 is inserted into the outer cylinder 61.
The first opening 63 a is above the first packing 66, and the third opening 65 a is between the second packing 67 and the third packing 68.
The flow paths of the second branch pipe 64 and the third branch pipe 65 communicate with each other through the second opening 64a, the flow path 62c, the opening 62d, and the third opening 65a.
The flow path of the first branch pipe 63 is closed because it is isolated from the flow paths of the second branch pipe 64 and the third branch pipe 65 by the first packing 66.

図２４（図２５）（Ｂ）は、（Ａ）の状態から内筒６２を上方向にスライドさせ、内筒６２の上部が外筒６１の上部に触れるまで挿入した状態を示す。
第一開口部６３ａは第二パッキング６７と第三パッキング６８間に、第三開口部６５ａは第三パッキング６８と第四パッキング６９の間にある。
第一分岐管６３と第二分岐管６４の流路は、第一開口部６３ａ、開口部６２ｄ、流路６２ｃ、第二開口部６４ａを経て、連通している。
第三分岐管６５の流路は第三パッキング６８と第四パッキング６９により、第一分岐管６３と第二分岐管６４の流路から隔絶されているため閉塞状態である。 FIGS. 24 (FIG. 25) and FIG. 25 (B) show a state where the inner cylinder 62 is slid upward from the state of (A) and inserted until the upper part of the inner cylinder 62 touches the upper part of the outer cylinder 61.
The first opening 63 a is between the second packing 67 and the third packing 68, and the third opening 65 a is between the third packing 68 and the fourth packing 69.
The flow paths of the first branch pipe 63 and the second branch pipe 64 communicate with each other through the first opening 63a, the opening 62d, the flow path 62c, and the second opening 64a.
The flow path of the third branch pipe 65 is closed because it is isolated from the flow paths of the first branch pipe 63 and the second branch pipe 64 by the third packing 68 and the fourth packing 69.

例えば、第二分岐管６４の流路から第一分岐管６３の流路または第三分岐管６５の流路へ液体が流れることを切り替えるとすると、（Ａ）では、第二分岐管６４の流路から第三分岐管６５の流路へ流れ、（Ｂ）では、第二分岐管６４の流路から第一分岐管６３の流路へ流れる。 For example, when switching the flow of liquid from the flow path of the second branch pipe 64 to the flow path of the first branch pipe 63 or the flow path of the third branch pipe 65, in (A), the flow of the second branch pipe 64 is changed. It flows from the path to the flow path of the third branch pipe 65, and in (B), it flows from the flow path of the second branch pipe 64 to the flow path of the first branch pipe 63.

［スライド式流路切替手段６０Ｄ］
以下、スライド式流路切替手段６０Ｄの説明で、使用する符号の複雑化を回避するために、スライド式流路切替手段６０等と実質的に同じ機能を有する部分は、スライド式流路切替手段６０、６０Ａ等と同じ符号を使用する。
図２６（図２７）のスライド式流路切替手段６０は、外筒６１と内筒６２とから構成され、内筒６２は外筒６１内にスライドないし回動できるように装着される。 [Sliding channel switching means 60D]
Hereinafter, in the description of the slide-type flow path switching means 60D, in order to avoid complication of the codes to be used, the portion having substantially the same function as the slide-type flow path switch means 60 and the like is the slide-type flow path switch means. The same reference numerals as 60, 60A, etc. are used.
26 (FIG. 27) includes an outer cylinder 61 and an inner cylinder 62, and the inner cylinder 62 is mounted in the outer cylinder 61 so as to slide or rotate.

［外筒６１］
外筒６１は、図２６、２７に例示するように、上部が閉塞され下部は開放されている。
外筒６１の周囲には、第一から第三の三つの分岐管６３、６４、６５が実質的に等間隔（距離ともいう）Ｌ１で装着され、当該各分岐管６３、６４、６５は、それぞれ開口部６３ａ、６４ａ、６５ａを経て、外筒６１の内部空間［内筒６２を装着した場合は、内筒６２の凹部６２a（流路）］と連通している。
分岐管６３、６４、６５の装着位置の略中心は、実質的に各開口部６３ａ、６４ａ、６５ａの略中央と同じである。このため各開口部６３ａ、６４ａ、６５ａも実質的に等間隔（距離ともいう）Ｌ１で形成されている。 [Outer cylinder 61]
As illustrated in FIGS. 26 and 27, the outer cylinder 61 is closed at the top and opened at the bottom.
Around the outer cylinder 61, three first to third branch pipes 63, 64, 65 are mounted at substantially equal intervals (also referred to as distances) L1, and each of the branch pipes 63, 64, 65 is Via the openings 63a, 64a, and 65a, the inner space of the outer cylinder 61 [when the inner cylinder 62 is mounted, communicates with the recess 62a (flow path) of the inner cylinder 62].
The approximate center of the mounting position of the branch pipes 63, 64, 65 is substantially the same as the approximate center of each opening 63a, 64a, 65a. Therefore, the openings 63a, 64a, 65a are also formed at substantially equal intervals (also referred to as distances) L1.

［内筒６２］
内筒６２の略中腹部から上部の間に凹部６２ａが形成され、外筒６１内に装着すると、当該凹部６２ａが流路として機能する。
凹部６２ａの上部には、第二パッキング６７が装着されている。さらに凹部６２ａの下部には、二つの第三パッキング６８、第四パッキング６９が装着されている。
これらの間隔（距離Ｌ２）は、前記外筒６１の各開口部６３ａ、６４ａ、６５ａ間の間隔（距離Ｌ１）と実質的に同じに形成されている。
なお内筒６２の上部は閉塞したほうが好ましく、下部は閉塞していてもよいし開放されていてもよい。 [Inner cylinder 62]
A recess 62a is formed between the substantially middle part and the upper part of the inner cylinder 62, and when the inner cylinder 62 is mounted in the outer cylinder 61, the recess 62a functions as a flow path.
A second packing 67 is mounted on the upper part of the recess 62a. Further, two third packings 68 and a fourth packing 69 are attached to the lower part of the recess 62a.
These intervals (distance L2) are formed substantially the same as the intervals (distance L1) between the openings 63a, 64a, 65a of the outer cylinder 61.
The upper part of the inner cylinder 62 is preferably closed, and the lower part may be closed or opened.

図２６（２７）（Ａ）は、内筒６２を外筒６１内に挿入した初期状態を示す。
第一開口部６３ａは第二パッキング６７の上に、第二開口部６４ａ及び第三開口部６５ａは第二パッキング６７と第三パッキング６８の間にある。
第一分岐管６３の流路は、第一パッキング６６と第二パッキング６７により、第二分岐管６４と第三分岐管６５の流路から隔絶されているため閉塞状態である。
第二分岐管６４と第三分岐管６５の流路は、第二パッキング６７と第三パッキング６８に挟まれている流路６２ａによって連通している。 26 (27) and (A) show an initial state in which the inner cylinder 62 is inserted into the outer cylinder 61. FIG.
The first opening 63 a is on the second packing 67, and the second opening 64 a and the third opening 65 a are between the second packing 67 and the third packing 68.
The flow path of the first branch pipe 63 is closed because it is isolated from the flow paths of the second branch pipe 64 and the third branch pipe 65 by the first packing 66 and the second packing 67.
The flow paths of the second branch pipe 64 and the third branch pipe 65 are communicated by a flow path 62 a sandwiched between the second packing 67 and the third packing 68.

図２６（２７）（Ｂ）は、（Ａ）の状態から内筒６２を上方向にスライドさせ、内筒６２の上部が外筒６１の上部に触れるまで挿入した状態を示す。
第一開口部６３ａ及び第二開口部６４ａは第二パッキング６７と第三パッキング６８間に、第三開口部６５ａは第三パッキング６８と第四パッキング６９の間にある。
第一分岐管６３と第二分岐管６４の流路は、第二パッキング６７と第三パッキング６８に挟まれている液体通路６２ａによって連通している。
第三分岐管６５の流路は第三パッキング６８と第四パッキング６９により、第一分岐管６３と第二分岐管６４の流路から隔絶されているため閉塞状態である。 26 (27) and 26 (B) show a state where the inner cylinder 62 is slid upward from the state of (A) and inserted until the upper part of the inner cylinder 62 touches the upper part of the outer cylinder 61.
The first opening 63 a and the second opening 64 a are between the second packing 67 and the third packing 68, and the third opening 65 a is between the third packing 68 and the fourth packing 69.
The flow paths of the first branch pipe 63 and the second branch pipe 64 communicate with each other by a liquid passage 62 a sandwiched between the second packing 67 and the third packing 68.
The flow path of the third branch pipe 65 is closed because it is isolated from the flow paths of the first branch pipe 63 and the second branch pipe 64 by the third packing 68 and the fourth packing 69.

例えば、第二分岐管６４の流路から第一分岐管６３の流路または第三分岐管６５の流路へ液体が流れることを切り替えるとすると、図２６（２７）（Ａ）では、第二分岐管６４の流路から第三分岐管６５の流路へ流れ、図２６（２７）（Ｂ）では、第二分岐管６４の流路から第一分岐管６３の流路へ流れる。 For example, if the flow of the liquid from the flow path of the second branch pipe 64 to the flow path of the first branch pipe 63 or the flow path of the third branch pipe 65 is switched, in FIG. It flows from the flow path of the branch pipe 64 to the flow path of the third branch pipe 65, and flows from the flow path of the second branch pipe 64 to the flow path of the first branch pipe 63 in FIGS.

［スライド式流路切替手段６０Ｅ］
図２８（２９）スライド式流路切替手段６０Ｅは、図１５から図１９のスライド式流路切替手段６０の第一パッキング６６を省略したものである。
図２８（２９）（Ａ）は、図１５、図２８（２９）（Ｂ）は、図１６、図２８（２９）（Ｃ）は、図１７の状態に対応する。
スライド式流路切替手段６０Ｅのスライド式流路切替手段６０と異なる点は、外筒６１の上部が閉塞されているため、この状態から第一分岐管６３、第二分岐管６４及び第三分岐管６５の全ての流路が「閉塞状態」になるまで押し込もうとすると、外筒６１上部の空間Ｓが圧縮されて陽圧になり内筒６２が押し戻されてしまう。そこで、上部の空間が圧縮され圧縮されて陽圧にならないように外筒６１上側部に「逃げ空間ＳＮ」を設けている。
これら以外の構造、操作方法は、スライド式流路切替手段６０と実質的に同じであるから、詳細な説明は省略する。 [Sliding channel switching means 60E]
FIG. 28 (29) slide type flow path switching means 60E is obtained by omitting the first packing 66 of the slide type flow path switching means 60 of FIGS.
28 (29) and (A) correspond to the state of FIG. 15, FIGS. 28 (29) and (B) correspond to the state of FIG. 16, and FIGS. 28 (29) and (C) correspond to the state of FIG.
The difference between the sliding flow path switching means 60E and the sliding flow path switching means 60 is that the upper portion of the outer cylinder 61 is closed, so that the first branch pipe 63, the second branch pipe 64, and the third branch from this state. If it tries to push in until all the flow paths of the pipe | tube 65 will be in the "closed state", the space S above the outer cylinder 61 will be compressed and it will become a positive pressure, and the inner cylinder 62 will be pushed back. Therefore, an “escape space SN” is provided in the upper portion of the outer cylinder 61 so that the upper space is compressed and is not compressed and becomes positive pressure.
Since the structure and the operation method other than these are substantially the same as those of the slide-type channel switching means 60, the detailed description is omitted.

［スライド式流路切替手段６０Ｆ］
図３０（３１）スライド式流路切替手段６０Ｆは、図２０（２１）のスライド式流路切替手段６０Ａの第一パッキングを省略したものである。
図３０（３１）（Ａ）は、図２０（２１）の状態に対応する。
スライド式流路切替手段６０Ｆのスライド式流路切替手段６０Ａと異なる点は、スライド式流路切替手段６０Ｅと同様の理由により、外筒６１上側部に「逃げ空間ＳＮ」を設けた点である。
これら以外の構造、操作方法は、スライド式流路切替手段６０Ａと実質的に同じであるから、詳細な説明は省略する。 [Sliding channel switching means 60F]
30 (31) slide type flow path switching means 60F is obtained by omitting the first packing of the slide type flow path switching means 60A of FIG. 20 (21).
FIGS. 30 (31) and 30 (A) correspond to the state of FIG. 20 (21).
The difference between the sliding channel switching unit 60F and the sliding channel switching unit 60A is that an “escape space SN” is provided on the upper side of the outer cylinder 61 for the same reason as the sliding channel switching unit 60E. .
Since the structure and operation method other than these are substantially the same as those of the slide-type channel switching means 60A, detailed description will be omitted.

スライド式流路切替手段６０Ａ、６０Ｂ、６０Ｅ、６０Ｆは、スライド式流路切替手段６０にかえて、図１の採血器具１に使用する場合、［００１５］で説明したように、スライド式流路切替手段６０と実質的に同じ様に使用できるので、詳細な説明は省略する。 When the slide-type flow path switching means 60A, 60B, 60E, 60F are used in the blood collection device 1 of FIG. 1 instead of the slide-type flow path switching means 60, as described in [0015], the slide-type flow path switching means 60A, 60B, 60E, 60F Since it can be used in substantially the same manner as the switching means 60, a detailed description is omitted.

スライド式流路切替手段６０Ｃ、６０Ｄは、スライド式流路切替手段６０、６０Ａ、６０Ｂ、６０Ｅ、６０Ｆと比較して、第一分岐管６３、第二分岐管６４、第三分岐管６５の全ての流路を同時に閉塞できないので、図１の採血器具１に使用する場合、採血針８側または採血バッグ側４のどちらか一方のチューブＴ１の途中にクランプ等の流路閉塞手段を配置する。 Compared with the slide type flow path switching means 60, 60A, 60B, 60E, 60F, the slide type flow path switching means 60C, 60D are all of the first branch pipe 63, the second branch pipe 64, and the third branch pipe 65. 1 cannot be closed at the same time. Therefore, when used in the blood collection device 1 of FIG. 1, a flow passage closing means such as a clamp is arranged in the middle of either the blood collection needle 8 side or the blood collection bag side 4 tube T1.

スライド式流路切替手段６０、６０Ａ、６０Ｂ、６０Ｃ、６０Ｄ、６０Ｅ、６０Ｆにおいて、各パッキング６６、６７、６８、６９、７０は、液密性を維持できるものであれば何でも良く、外筒６１と内筒６２とは、別部品として、外筒６１と内筒６２の間に配置しても良いし、内筒６２に当初から一体成形しても良い。 In the sliding channel switching means 60, 60A, 60B, 60C, 60D, 60E, 60F, the packings 66, 67, 68, 69, 70 may be anything as long as they can maintain liquid tightness. The inner cylinder 62 and the inner cylinder 62 may be disposed between the outer cylinder 61 and the inner cylinder 62 as separate parts, or may be integrally formed with the inner cylinder 62 from the beginning.

本発明の採血器具の概略図Schematic diagram of blood collection instrument of the present invention 流路切替手段の一例を示す概略図Schematic showing an example of flow path switching means 流路切替手段の一例を示す概略図Schematic showing an example of flow path switching means 流路切替手段の一例を示す概略図Schematic showing an example of flow path switching means 流路切替手段Ｖ（多方活栓３０Ａ）の外観斜視図［初期状態（図２に対応）］Appearance perspective view of channel switching means V (multi-way stopcock 30A) [initial state (corresponding to FIG. 2)] 栓体３４の外観斜視図［栓体３４を左に９０°回動した状態（図３対応）］External perspective view of plug 34 [state in which plug 34 is rotated 90 ° to the left (corresponding to FIG. 3)] 本体３１の全体斜視図Overall perspective view of main body 31 流路切替手段Ｖ（多方活栓３０Ａ）の透視斜視図［初期状態（図２に対応）］Perspective perspective view of flow path switching means V (multi-way stopcock 30A) [initial state (corresponding to FIG. 2)] 栓体３４の透視斜視図［初期状態（図２に対応）］Perspective view of plug 34 [initial state (corresponding to FIG. 2)] 本体３１の透視斜視図A perspective view of the body 31 流路切替手段Ｖ（多方活栓３０Ａ）のＡ−Ａ縦断面図AA longitudinal sectional view of flow path switching means V (multi-way stopcock 30A) 流路切替手段Ｖ（多方活栓３０Ａ）の横断面図［初期状態（図２に対応）］Cross-sectional view of flow path switching means V (multi-way stopcock 30A) [initial state (corresponding to FIG. 2)] 流路切替手段Ｖ（多方活栓３０Ａ）の横断面図［栓体３４を左に９０°回動した状態（図３対応）。Cross-sectional view of flow path switching means V (multi-way stopcock 30A) [state in which plug 34 is rotated 90 ° to the left (corresponding to FIG. 3). 流路切替手段Ｖ（多方活栓３０Ａ）の横断面図［栓体３４を左に１８０°回動した状態（図３対応）］Cross-sectional view of flow path switching means V (multi-way stopcock 30A) [state where plug 34 is rotated 180 ° to the left (corresponding to FIG. 3)] スライド式流路切替手段の一例を示す縦断面図Longitudinal sectional view showing an example of slide type flow path switching means スライド式流路切替手段の一例を示す縦断面図Longitudinal sectional view showing an example of slide type flow path switching means スライド式流路切替手段の一例を示す縦断面図Longitudinal sectional view showing an example of slide type flow path switching means 内筒を装着した外筒の斜視図Perspective view of an outer cylinder fitted with an inner cylinder 内筒の斜視図Perspective view of inner cylinder スライド式流路切替手段の一例を示す縦断面図Longitudinal sectional view showing an example of slide type flow path switching means スライド式流路切替手段の一例を示す外観斜視図External perspective view showing an example of slide type flow path switching means スライド式流路切替手段の一例を示す縦断面図Longitudinal sectional view showing an example of slide type flow path switching means スライド式流路切替手段の一例を示す外観斜視図External perspective view showing an example of slide type flow path switching means スライド式流路切替手段の一例を示す縦断面図Longitudinal sectional view showing an example of slide type flow path switching means スライド式流路切替手段の一例を示す外観斜視図External perspective view showing an example of slide type flow path switching means スライド式流路切替手段の一例を示す縦断面図Longitudinal sectional view showing an example of slide type flow path switching means スライド式流路切替手段の一例を示す外観斜視図External perspective view showing an example of slide type flow path switching means スライド式流路切替手段の一例を示す縦断面図Longitudinal sectional view showing an example of slide type flow path switching means スライド式流路切替手段の一例を示す外観斜視図External perspective view showing an example of slide type flow path switching means スライド式流路切替手段の一例を示す縦断面図Longitudinal sectional view showing an example of slide type flow path switching means スライド式流路切替手段の一例を示す外観斜視図External perspective view showing an example of slide type flow path switching means

Explanation of symbols

１採血器具
２採血初流除去セット
Ｂ採血初流除去バッグ
３血液フィルタ
４採血バッグ
５第１子バッグ
６第２子バッグ
７赤血球保存液入バッグ
８採血針
１０針カバー
１１ａ、１１ｂ、１１ｃクランプ
１３接続管
２１バッグ本体
２２真空採血管ホルダ
２３（初流血液の）入口
２４（初流血液の）出口
２５（初流血液の）採取針
２６シース
Ｖ流路切替手段
３０、３０Ａ多方活栓
３１本体
ＵＷ上部壁
ＬＷ下部壁
ＳＷ側壁
３３ａ第一分岐管
３３ｂ第二分岐管
３３ｃ第三分岐管
３４栓体
３４Ｈハンドル
３６ａ第一流路
３６ｂ第二流路
４１突起
４２係止部材
４２Ｔ１回転角度制御部材（固定ピン）
４２Ｔ２係合部
５０軸（固定ピン）
５１ロータ
５２溝
Ｔ１採血チューブ
Ｔ２初流血液導入チューブ
Ｔ３、Ｔ４、Ｔ５、Ｔ６連結チューブ
６０、６０Ａ、６０Ｂ、６０Ｃ、６０Ｄ、６０Ｅ、６０Ｆスライド式流路切替手段
６１外筒
６１ｂ係合部（溝）
６２内筒
６２ａ凹部［（液体）流路］
６２ｂ係合部（凸部）
６２ｃ流路
６２ｄ開口部
６３第一分岐管
６４第二分岐管
６５第三分岐管
６３ａ第一開口部
６４ａ第二開口部
６５ａ第三開口部
６６第一パッキング
６７第二パッキング
６８第三パッキング
６９第四パッキング
７０第五パッキング
７１孔
Ｌ１第一開口部と第二開口部、第二開口部と第三開口部間の間隔（距離）
第一分岐管と第二分岐管、第二分岐管と第三分岐管の間隔（距離）
Ｌ２第一パッキングと第二パッキング、第三パッキングと第四パッキング、第四パッキングと第五パッキングの間隔（距離）
Ｌ３第二パッキングと第三パッキングの間隔（距離）
Ｌ４外筒１下端から係合部（凸部）２ｂの上端の間隔（距離）
Ｌ５外筒１の係合部（溝）１ｂの深さ
Ｗ１係合部（凸部）２ｂの幅
Ｗ２係合部（溝）１ｂ
Ｓ空間
ＳＮ逃げ空間 DESCRIPTION OF SYMBOLS 1 Blood collection instrument 2 Blood collection initial flow removal set B Blood collection initial flow removal bag 3 Blood filter 4 Blood collection bag 5 First child bag 6 Second child bag 7 Red blood cell storage solution bag 8 Blood collection needle 10 Needle covers 11a, 11b, 11c Clamp 13 Connection tube 21 Bag main body 22 Vacuum blood collection tube holder 23 (Initial blood) inlet 24 (Initial blood) outlet 25 (Initial blood) collection needle 26 Sheath V Channel switching means 30, 30A Multi-way stopcock 31 Main body UW Upper wall LW Lower wall SW Side wall 33a First branch pipe 33b Second branch pipe 33c Third branch pipe 34 Plug body 34H Handle 36a First flow path 36b Second flow path 41 Projection 42 Locking member 42T1 Rotation angle control member (fixing pin) )
42T2 engaging part 50 shaft (fixing pin)
51 Rotor 52 Groove T1 Blood collection tube T2 Initial blood introduction tube T3, T4, T5, T6 Connection tube 60, 60A, 60B, 60C, 60D, 60E, 60F Sliding flow path switching means 61 Outer cylinder 61b Engaging portion (groove )
62 Inner cylinder 62a Concavity [(liquid) channel]
62b Engagement part (convex part)
62c flow path 62d opening 63 first branch pipe 64 second branch pipe 65 third branch pipe 63a first opening 64a second opening 65a third opening 66 first packing 67 second packing 68 third packing 69 first Four packing 70 Fifth packing 71 Hole L1 The distance (distance) between the first opening and the second opening, and between the second opening and the third opening
Distance (distance) between the first branch pipe and the second branch pipe, the second branch pipe and the third branch pipe
L2 First packing and second packing, third packing and fourth packing, fourth packing and fifth packing spacing (distance)
L3 Spacing (distance) between second packing and third packing
L4 Distance (distance) from the lower end of the outer cylinder 1 to the upper end of the engaging portion (convex portion) 2b
L5 Depth W1 of engaging portion (groove) 1b of outer cylinder 1 Width W2 of engaging portion (convex portion) 2b Engaging portion (groove) 1b
S space SN escape space

Claims

A blood collection needle (8) for collecting blood from a donor,
A blood collection bag (4) for storing the collected blood;
A blood collection tube (T1) having one end communicating with the blood collection bag (4) and the other end communicating with the blood collection needle (8), respectively, and introducing the collected blood into the blood collection bag (4);
A blood collection device having an initial blood tube (T2) that branches off from the blood collection tube (T1) and removes the initial flow of the collected blood,
In the middle of the blood collection tube (T1), a flow path switching means (V) between the blood collection tube (T1) and the initial flow blood tube (T2) is disposed,
A blood collection device (1) in which one end of an initial blood tube (T2) is connected to the flow path switching means (V).

The flow path switching means (V)
When the primary blood flows from the blood collection needle (8) through the blood collection tube (T1) and the flow path switching means (V) to the primary blood tube (T2), the blood collection tube (T1) on the blood collection bag (4) side is used. )
After the initial blood collection, the blood is collected from the blood collection needle (8) through the blood collection tube (T1) and the flow path switching means (V).
The blood collection device (1) according to claim 1, wherein when collecting the blood in the blood collection bag (4), the flow path of the initial blood tube (T2) is blocked.

The flow path switching means (V) is rotatably fitted in the main body (31) having the first to third branch pipes (33a, 33b, 33c) on the outer periphery and the main body (31). A multi-way cock (30) composed of a plug body (34)
In the stopper (34), the blood collection tube (T1) on the blood collection needle (8) side communicates with the initial flow blood introduction tube (T2), and the blood collection tube (T1) on the blood collection needle (8) side is connected to the blood collection bag. The blood collection device (1) according to claim 1 or 2, comprising at least two first flow paths (36a) and second flow paths (36b) communicating with the (4) side blood collection tube (T1).

The blood sampling device (1) according to claim 3, wherein a reverse operation preventing member for preventing reverse operation of the plug (34) is attached to the multi-way stopcock (30).

The reverse operation preventing member includes a protrusion (41) formed on the inner wall of the main body (31) and a locking member (42) formed on the outer wall of the plug (34) or an engagement formed on the inner wall of the main body (31). The blood collection device (1) according to claim 4, wherein the blood collection device (1) is a protrusion (41) formed on the outer wall of the stopper member (42) and the plug (34).

The flow path switching means (V) includes an outer cylinder (61) having at least two branch pipes (63, 64, 65) on the outer periphery,
By slide type flow path switching means (60, 60A, 60B, 60C, 60D, 60E, 60F) composed of an inner cylinder (62) mounted so as to be slidable or rotatable in the outer cylinder (61). Yes,
In the inner cylinder (62), the blood collection tube (T1) on the blood collection needle (8) side communicates with the initial flow blood introduction tube (T2), and the blood collection tube (T1) on the blood collection needle (8) side communicates with the blood collection bag. (4) having flow paths (62a, 62c) communicating with the side blood collection tube (T1);
Each said branch pipe (63, 64, 65) is each connected to the flow path (62a, 62c) of an inner cylinder (62) through an opening part (63a, 64a, 65a), respectively. The blood collection device as described (1).

The sliding flow path switching means (60, 60A, 60B, 60E, 60F)
The engagement part (61b) is formed in a substantially lower part of the outer cylinder (61), and the engagement part (62b) is formed in a substantially lower part of the inner cylinder (62). A blood collection device (1) according to any one of the claims.

The sliding flow path switching means (60, 60D, 60E)
A flow path (62a) is formed between the substantially middle abdomen and the upper part of the inner cylinder (62),
At least one or more packings (66, 67) are attached to the upper part of the flow path (62a),
The blood collection device according to any one of claims 1 to 2, and 6 to 7, wherein at least two or more packings (68, 69, 70) are attached to a lower portion of the flow path (62a). (1).

The sliding flow path switching means (60A, 60B, 60C, 60F)
The branch pipe (64) is formed in the upper part or the lower part of the inner cylinder (62), and the flow path (62c) communicating with the branch pipe (64) is formed in the inner cylinder (62). The blood collection device (1) according to any one of claims 6 to 8.

In the slide type flow path switching means (60A, 60B, 60C, 60F), at least one packing (66, 67) is mounted above the opening (62d) of the flow path (62c). The blood collecting device (1) according to any one of claims 1 to 2, and 6 to 9, wherein at least two packings (66, 67) are mounted below the opening (62d) of 62c). ).

An outer cylinder (61) having at least two or more branch pipes (63, 64, 65) on the outer periphery;
An inner cylinder (62) mounted so as to slide or rotate in the outer cylinder (61),
The inner cylinder (62) has flow paths (62a, 62c) communicating with tubes (T1, T2) connected to the branch pipes (63, 64, 65),
Each of the branch pipes (63, 64, 65) is slidable flow path switching means (60) communicating with the flow paths (62a, 62c) of the inner cylinder (62) through the openings (63a, 64a, 65a), respectively. 60A, 60B, 60C, 60D, 60E, 60F).

The sliding flow path switching means (60, 60A, 60B, 60E, 60F)
An engaging portion (61b) is formed in a substantially lower portion of the outer cylinder (61), and the branch pipes (63, 64, 65) are respectively passed through openings (63a, 64a, 65a) and the inner cylinder (62 ) And the flow path (62a, 62c) of
The slide type flow path switching means (60, 60A, 60B, 60E, 60F) according to claim 11, wherein an engaging portion (62b) is formed in a substantially lower part of the inner cylinder (62).

The sliding flow path switching means (60, 60D, 60E)
A flow path (62a) is formed between the substantially middle abdomen and the upper part of the inner cylinder (62),
At least one or more packings (66, 67) are attached to the upper part of the flow path (62a),
The slide type flow path switching means (60, 60D, 60) according to claim 11 or 12, wherein at least two packings (68, 69, 70) are attached to a lower portion of the flow path (62a). 60E).

The sliding flow path switching means (60A, 60B, 60C, 60F)
The branch pipe (64) is formed in the upper part or the lower part of the inner cylinder (62), and the flow path (62c) communicating with the branch pipe (64) is formed in the inner cylinder (62). The sliding flow path switching means (60A, 60B, 60C, 60F) according to any one of the claims.

In the slide type flow path switching means (60A, 60B, 60C, 60F), at least one packing (66, 67) is mounted above the opening (62d) of the flow path (62c). The sliding flow path switching means (60A) according to any one of claims 11 to 14, wherein at least two packings (66, 67) are mounted below the opening (62d) of 62c). 60B, 60C, 60F).

Consists of a main body (31) having first to third three branch pipes (33a, 33b, 33c) on the outer periphery, and a plug body (34) that is rotatably fitted in the main body (31). And
The plug (34) has at least two first flow paths (36a) and second flow paths (36b) communicating with the tubes (T1, T2) connected to the branch pipes (33a, 33b, 33c). And
A multiway stopcock (30) equipped with a reverse operation preventing member for preventing reverse operation of the plug (34).

The reverse operation preventing member is formed on the protrusion (41) formed on the inner wall of the main body (31) and the locking member (42) formed on the outer wall of the plug (34) or on the inner wall of the main body (31). The multi-way stopcock (30) according to claim 16, which is a protrusion (41) formed on the outer wall of the locking member (42) and the plug body (34).