JP4500110B2 - Puncture needle cartridge cassette and blood collection puncture device - Google Patents

Description

  The present invention relates to a puncture device used for blood collection or the like, and a cassette for storing puncture needle cartridges, and in particular, takes out puncture needle cartridges one by one from a cassette storing a plurality of puncture needle cartridges and discards them one by one in the original place. The present invention relates to a blood sampling puncture device having a structure and a cassette for storing a puncture needle cartridge for replacement of the puncture device.

A conventional puncture device and a storing form of the puncture needle cartridge will be described with reference to FIG.
As shown in FIG. 4, a conventional blood sampling puncture device 400 includes a puncture device main body 401 with a holder 406 that houses a lancet 404 having a needle tip portion 403 and needle tip protection that protects the lancet needle tip portion 403. A disposable puncture needle cartridge 402 composed of a cap 405 is attached, a fingertip, an arm, and the like are punctured by a lancet needle tip portion 403, and bleeding from the punctured site is used for measurement. In general, the puncture needle cartridge 402 is housed in a nylon bag or a cosmetic box such as 407 in a disassembled state, and when attached to the puncture device, the puncture needle cartridge 402 is removed from the bag one by one and individually by hand. Installed. Before puncturing, it is necessary to remove the needle tip protection cap 405, and after puncturing, attach the needle tip protection cap 405 again and remove the puncture needle cartridge from the puncture device body 401. This series of flows is a general blood collection operation (see, for example, Patent Document 1).
JP 2000-245717 A

As described above, in the conventional lancet system in which the puncture needle cartridge is stored in a disassembled state, the puncture needle used by another person is accidentally used, or the puncture needle is accidentally inserted when it is attached to or removed from the puncture device. If there is a need to remove the used puncture needle cartridge by hand, there is a risk of infection.
Further, it is considered that the work from mounting of the puncture needle to disposal is troublesome, and it is considered that the reuse of the dangerous puncture needle cartridge is promoted.

  The object of the present invention is that a puncture needle cartridge can be reused in a simple process, and the puncture needle cartridge cannot be reused. An object of the present invention is to provide a puncture device that can be performed and a cassette that stores a puncture needle cartridge for replacement of the puncture device.

In order to solve the above-mentioned problems, a puncture needle cartridge storage cassette according to claim 1 of the present invention includes a lancet body having a protruding needle tip portion, and a needle tip protection cap for protecting the needle tip portion of the lancet body. A plurality of puncture needle cartridges, each of which has a lancet and a cylindrical holder for storing the lancet. The tips of the needle tip protection caps of the plurality of stored puncture needle cartridges are individually erected on the one base, respectively.
As a result, a plurality of puncture needle cartridges can be individually stored in a plurality of individual chambers on one base, making it possible to store them together and mounting or puncturing one puncture needle cartridge to a puncture device. Disposal from the instrument to its original position can be performed hygienically and safely without being affected by other cartridges.

A puncture needle cartridge storage cassette according to claim 2 of the present invention is the puncture needle cartridge storage cassette according to claim 1, wherein the plurality of puncture needle cartridges are arranged on the one base. It is characterized by being arranged in parallel in the dimension.
As a result, a plurality of puncture needle cartridges can be stored in an orderly manner, and one puncture needle cartridge can be attached to or detached from the puncture device without being affected by other cartridges. And can be done safely.

A puncture needle cartridge storage cassette according to claim 3 of the present invention is the puncture needle cartridge storage cassette according to claim 1 or 2, wherein a plurality of puncture needle cartridge storage cassettes are formed by the side walls. The storage chamber is characterized in that upper portions of the plurality of storage chambers are integrally covered with a film-like member.
Thereby, a plurality of puncture needle cartridges can be stored integrally and hygienically.

The puncture needle cartridge storage cassette according to claim 4 of the present invention is the puncture needle cartridge storage cassette according to claim 3, wherein the film-like member is easily broken at the center of the portion covering the storage chamber. It is characterized by having a notch.
Thus, when the puncture needle cartridge is mounted on the puncture device, the film-like member can be easily broken and the puncture needle cartridge in the storage chamber can be easily taken out.

The puncture needle cartridge storage cassette according to claim 5 of the present invention is the puncture needle cartridge storage cassette according to any one of claims 1 to 4, wherein the puncture needle cartridge is based on the puncture needle cartridge. When pulled away from the base, the needle tip portion of the lancet main body is exposed in the holder, and the needle tip protection cap remains standing on the base.
This makes it possible to safely attach the puncture needle cartridge to the puncture device with the needle tip portion exposed in the holder without touching or looking at the needle tip portion, and protecting the needle tip. Since the cap is left standing on the base, the used puncture needle cartridge can be neatly disposed of in the original position later.

The puncture needle cartridge storage cassette according to claim 6 of the present invention is the puncture needle cartridge storage cassette according to claim 5, wherein the used puncture needle is placed in the original storage chamber of the puncture needle cartridge storage cassette. The cartridge is inserted while the puncture needle cartridge is held and attached to the puncture device, the needle tip protection cap left on the base is used to capture the used needle tip portion of the lancet body, and the outside of the holder and By engaging the concavo-convex portion provided on the side wall and pulling out the puncture device in this state, the used puncture needle cartridge is removed from the puncture device and discarded into the storage chamber. It is characterized by.
Thus, the used puncture needle cartridge can be easily discarded in the original storage chamber of the puncture needle cartridge storage cassette without touching or looking at the needle tip portion.

A puncture device for blood collection according to claim 7 of the present invention is a puncture device for blood collection that is used in combination with a puncture needle cartridge stored in a cassette for storing a puncture needle cartridge according to claim 1. By moving the puncture device main body from the rear end side of the puncture needle cartridge in the axial direction toward the puncture needle cartridge so as to insert the puncture needle cartridge therein, the blood puncture device for blood collection A plunger provided inside the main body automatically holds the rear portion of the lancet main body.
Accordingly, the puncture needle cartridge can be taken into the puncture device with a simple operation.

The blood collection puncture device according to claim 8 of the present invention is the blood collection puncture device according to claim 7, wherein the plunger holds the rear portion of the lancet body and then faces the puncture needle cartridge. When the main body is further moved, the plunger is pushed by the lancet main body to move toward the rear end of the puncture device main body, and the front end of the housing housing the plunger is held by the lancet main body of the plunger. By locking the portion and pulling the blood sampling puncture device in this state, the needle tip protection cap and the lancet body of the puncture needle cartridge are separated, and the puncture needle cartridge exposes the needle tip portion in the holder. It is characterized in that it is mounted in a state in which it is attached.
Accordingly, the puncture needle cartridge can be easily mounted in the puncture device without touching or looking at the needle tip.

A blood collection puncture device according to claim 9 of the present invention is the blood collection puncture device according to claim 8, wherein the plunger is required for puncture by movement of the plunger toward the rear end of the puncture device body. The urging force in the distal direction of the puncture device main body is stored.
Thereby, the attachment of the puncture needle cartridge can be completed by one operation, and at the same time, preparation for puncture can be completed.

The blood collection puncture device according to claim 10 of the present invention is the blood collection puncture device according to claim 8, wherein the plunger tip is moved in the distal direction of the puncture device body when the puncture is performed. And the plunger are unlocked.
Thereby, the puncture needle cartridge can be easily discarded at the original position of the puncture needle cartridge storage cassette while the puncture needle cartridge is mounted on the puncture device body.

  According to the cassette for storing a puncture needle cartridge according to the present invention, it is possible to individually store a plurality of puncture needle cartridges on a single base in an orderly and hygienic manner. The needle cartridge can be easily and safely attached to the puncture device, and can be disposed of in the original storage location without touching or looking at the needle tip.

  In addition, the blood collection puncture device according to the present invention has an effect that a series of puncture operations from mounting of the puncture needle cartridge to disposal can be performed easily and safely.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(Embodiment 1)
FIG. 1 is an external view of a puncture needle cartridge storage cassette according to Embodiment 1 of the present invention.

  As shown in FIG. 1, the puncture needle cartridge storage cassette 100 includes a base 101, a side wall 102, and a film-like member 103 having a notch 104, and the base 101, the side wall 102, and the film-like member 103 are attached to the base 101. The puncture needle cartridges 105 are individually stored in a plurality of storage chambers that are surrounded.

FIG. 2A is a configuration diagram of the puncture needle cartridge storage cassette when not in use.
FIG. 2B is a cross-sectional view of the puncture needle cartridge storage cassette when not in use.
As shown in FIG. 2 (a), the puncture needle cartridge storage cassette according to the first embodiment has the puncture needle cartridge 105 individually stored in a storage chamber formed by being partitioned by a side wall 102. Yes.

  As shown in FIG. 2B, the puncture needle cartridge 105 includes a lancet body 302 having a protruding needle tip portion 303 and a needle tip protection cap 304 that protects the needle tip portion 303, and the lancet. And a cylindrical holder 301 for storing the. The lancet main body 302 has a column body 306 as a gripping hand, a disk body 308 as a convex portion, and a claw portion 309. The needle tip protection cap 304 has a base 101 at the bottom thereof. And an engaging portion 305 that engages with the bottom of the side wall 102 formed integrally. On the inner side of the holder 301 are provided a convex portion 310 and a convex portion 311 that engage with the disc convex portion 308 and the claw portion 309 of the lancet body 302, respectively. A convex portion 301 a is provided to engage with the convex portion 102 a of the side wall 102.

  It should be noted that the lancet main body 302 and the holder 301 are not fixed to each other, and basically the lancet main body 302 is not attached to the puncture device. The holder 301 can be moved back and forth.

  Next, a blood collection puncture device that performs puncture using the puncture needle cartridge stored in the puncture needle cartridge storage cassette will be described with reference to FIG.

FIG. 3A is a schematic diagram of the blood sampling puncture device according to the first embodiment of the present invention.
As shown in FIG. 3A, a blood sampling puncture device 200 includes a plunger 202 that slides in the longitudinal direction inside a housing 201, and further, a puncture button 203 for puncture and a puncture depth for adjusting the puncture depth. Puncture depth adjustment ring 204 and charge spring 205 for storing the urging force necessary for puncture, and the puncture needle cartridge 105 accommodated in the puncture needle cartridge storage cassette is attached to the tip of the puncture device And puncture.

  Next, the structure of the puncture device and the puncture needle cartridge storage cassette and the method of using them will be described with reference to FIGS. 3B, 3C, and 3D.

First, attachment of the puncture needle cartridge to the puncture device will be described with reference to FIG.
FIG. 3B is a cross-sectional view when the puncture needle cartridge is attached to the puncture device.
As shown in FIG. 3B, the housing 201 of the puncture device 200 has a plunger lock portion 201a that controls the opening and closing of the lancet body holding portion 202a of the plunger 202.

  When the puncture needle cartridge 105 is attached to the puncture device 200, the puncture device 200 is gripped so that the puncture needle cartridge enters the puncture device in the axial direction of the puncture needle cartridge toward the puncture needle cartridge. Further, when the cut 104 of the film-like member of the storage cassette 100 is broken and the puncture device is moved, the outer peripheral portion of the puncture needle cartridge 105 is press-fitted into the housing 201, and the column 306 of the lancet body 302 of the puncture needle cartridge. Enters the lancet main body holding portion 202a of the plunger 202 of the puncture device 200, and the protrusion at the tip of the lancet main body holding portion 202a is fitted into the recess provided in the column 306, whereby the lancet main body 302 is moved to the plunger 202. Held by. In this state, when the puncture device is further moved toward the puncture needle cartridge in the axial direction of the puncture needle cartridge, the lancet body 302 pushes the plunger 202, and the plunger 202 moves to the rear end of the puncture device main body. In order to move in the direction, the plunger lock part 201a of the housing 201 of the puncture device 200 locks the lancet body holding part 202a so that the lancet body holding part 202a does not open. Accordingly, the puncture needle cartridge 105 can be pulled out from the puncture needle cartridge storage cassette 100 while the puncture needle cartridge 105 is attached to the puncture device 200.

  In addition, since the movement in the rear end direction of the plunger 202 pulls the charge spring 205, the urging force in the front end direction necessary for puncturing the charge spring 205 is simultaneously stored.

  When the puncture device 200 is pulled away from the storage cassette 100 in this locked state, the puncture needle cartridge 105 is engaged by the engagement of the inner convex portion 310 of the holder 301 of the puncture needle cartridge and the convex portion 308 of the lancet body 302. The holder 301 and the lancet main body 302 together with the holder 301 and the lancet body 302 are pulled out from the storage cassette 100 and mounted on the puncture device 200 with the charge spring 205 of the puncture device biased. On the other hand, the needle tip protection cap 304 of the puncture needle cartridge remains on the base 101 of the storage cassette 100 as it is.

  When the puncture needle cartridge 105 is pulled out of the storage chamber, the lancet main body 302 has the plunger 202, although there is resistance to pulling out the cartridge 105 due to the engagement between the holder convex portion 301a and the side wall convex portion 102a. The lancet body 302 can be pulled strongly because it is firmly fitted and locked. That is, here, the engaging force between the convex portion 308 of the lancet body 302 and the internal convex portion 310 of the cartridge holder 301 and the lancet body 302 are locked to the plunger 202 by the engaging force between the holder convex portion 301a and the side wall convex portion 102a. This pull-out is made possible by the fact that both of the forces are strong.

  FIG. 3B shows a state in which the puncture needle cartridge 105 is pulled away from the storage cassette 100 and attached to the puncture device 200 as described above.

  When puncturing using the puncture device 200, first, the puncture depth adjusting ring 204 is turned to determine a predetermined puncture depth, and the puncture button 203 is pressed to release the charge spring 205 from the bias, The jar 202 is moved toward the distal end of the puncture device by the elastic force of the charge spring 205. As the plunger 202 slides in the axial direction, the lancet body 302 is moved in the distal direction along the axial direction of the puncture device, and the lancet needle tip portion 303 protrudes from the holder 301 to move the predetermined position of the human body. Puncture. In this case, since the claw portion 309 is made of a highly flexible material, the movement of the lancet main body 302 in the direction in which the lancet body 302 moves forward is not hindered in the puncture needle cartridge 105. Further, when the puncture needle cartridge 105 is attached to the puncture device, the holder 301 which is the outer peripheral portion of the puncture needle cartridge 105 is press-fitted into the housing 201 and is thus fitted. Only the lancet body 302 having the needle tip is pushed out by the plunger 202 while remaining inside.

  Note that the movement of the lancet body 302 and the plunger 202 toward the distal end during the puncture releases the lock between the housing distal end 201a and the plunger distal end 202a.

  Since the charge spring 205 returns to the free position at the moment when the puncturing operation is finished, the plunger 202 connected to the charge spring 205 is retracted into the housing of the puncture device body, and the needle held by the plunger 202 The lancet main body 302 having the tip portion 303 is also retracted to the holder 301 so that the lancet body 302 is completely accommodated in the holder 301 from the protruding position. The puncture needle cartridge is configured so that the claw portion 309 of the lancet main body 302 engages with the inner convex portion 311 of the holder 301 during the backward movement process. As a result, the position of the lancet body 302 that has been punctured (FIG. 3C) has moved in the distal direction from the position in the puncture preparation state (FIG. 3B).

  The puncture needle cartridge and the puncture device 200 in a state where the puncture is finished and the needle tip portion 303 is completely returned to the holder 301 are shown in the upper part of FIG.

  Next, the removal and disposal of the used puncture needle cartridge from the puncture device will be described with reference to FIGS. 3 (c) and 3 (d).

FIG. 3C is a cross-sectional view when the used puncture needle cartridge is discarded in the puncture needle cartridge storage cassette.
FIG. 3D is a cross-sectional view of the puncture needle cartridge storage cassette after the used puncture needle cartridge is discarded.

  As described above, the lancet main body 302 and the plunger 202 are moved in the distal direction when performing the puncturing operation, so that the lock between the housing distal end portion 201a and the plunger distal end 202a is released. Can be returned to the original location of the puncture needle cartridge storage cassette while the puncture needle cartridge is attached to the puncture device body, and the puncture needle cartridge is removed by pulling out the puncture device body. Only the puncture device can be pulled out and remain in the cassette for storing the needle cartridge.

  Specifically, as shown in FIGS. 3 (c) and 3 (d), when the puncture needle cartridge 105 after puncture is discarded at the original position of the puncture needle cartridge storage cassette 100, Since the plunger lock portion 201 a is released by the movement of the plunger 202, the used puncture needle cartridge by holding the puncture device is passed through the notch 104 into the original storage chamber of the puncture needle cartridge storage cassette 100. The needle tip protection cap 304 remaining on the base of the storage chamber catches the needle tip portion 303 of the used lancet body 302, and when the puncture needle cartridge 105 is further moved to the storage chamber, the puncture needle cartridge 105, the outer convex portion 301a of the holder 301 and the side wall convex portion 102a of the storage chamber are engaged, and in this state, the puncture device body is When pulled out, the force for grasping and pulling the lancet body 302 hardly works because it is unlocked, so that the puncture needle cartridge 105 remains in the puncture needle cartridge storage cassette and only the puncture device is pulled out. Can do. That is, with the puncture needle cartridge 105 attached to the puncture device 200, the used puncture needle cartridge 105 can be discarded to the original position of the puncture needle cartridge storage cassette.

  After the puncture needle cartridge 105 is returned to the storage chamber, for example, even if the storage cassette is turned over, the puncture needle cartridge 105 is inserted into the storage chamber of the storage cassette by the engaging force between the holder convex portion 301a and the side wall convex portion 102a. It won't fall out of the cassette for storage.

  As described above, in the puncture needle cartridge storage cassette according to the first embodiment, the lancet body 302 having the needle tip portion, the lancet having the protective cap 304 that covers the needle tip portion, and the cylindrical shape for storing the lancet. The puncture needle cartridge 105 composed of a plurality of holders is individually stored in a plurality of storage chambers partitioned by a side wall 102 formed integrally with a single base, and the protective cap 304 of the puncture needle cartridge is Since it is configured to stand on a base and integrally cover the upper portions of the plurality of storage chambers with a film-like member having cuts 104, the cuts 104 are broken to store the puncture needle cartridge. When the puncture needle cartridge is pulled out from the cassette and attached to the puncture device, the puncture needle cartridge The protective cap 304 is left on the base and can be attached to the puncture device with the needle tip portion exposed in the holder, so that the needle tip portion is not directly touched or seen. The puncture needle cartridge can be mounted on the puncture device in a sanitary and safe manner, and the used puncture needle cartridge is placed in the original storage chamber of the puncture needle cartridge storage cassette while being mounted on the puncture device. Since it can be discarded, a series of blood collection operations from wearing to disposal can be performed safely without touching or seeing the puncture needle. In addition, since the needle tip portion can be concealed in the holder even during use, the fear of the user can be eased. Furthermore, since the puncture needle cartridge is arranged two-dimensionally in parallel on the base and individually stored, the puncture needle cartridge is neat and easy to use, easy to manage and dangerous compared to the conventional storage method. There is an advantage that reuse of the needle cartridge can be prevented.

  In addition, the blood collection puncture device according to the first embodiment includes a plunger 202 that holds the rear end of the lancet body of the puncture needle cartridge, and a housing for housing the blood collection puncture device that houses the plunger 202. Further, a lock portion 201a for locking the tip 202a of the plunger 202 holding the rear end of the lancet body is provided at the tip of the housing for housing, and the lancet body and plunger when the puncture needle cartridge is mounted. By the movement of the puncture device main body 202 toward the rear end, the lock portion 201a locks the distal end portion 202a of the plunger 202 that holds the rear end of the lancet main body and stores the urging force for puncturing. As a result, when the puncture needle cartridge is attached and enabled for puncture with a simple operation, The needle tip protection cap can also be removed, and the lock is released by the movement of the lancet body and the plunger 202 toward the distal end of the puncture device body when performing puncture. The cartridge can be easily released, and the puncture needle cartridge can be discarded in the original position of the puncture needle cartridge storage cassette while being attached to the puncture device body.

  The cassette for storing a puncture needle cartridge and the puncture device according to the present invention can be punctured in a simple process, cannot be reused, and can be safely installed to discarded without touching or seeing the puncture needle once. This is useful as a cassette for storing a puncture device and a puncture needle cartridge for exchanging the puncture device, such as when using a measuring instrument that requires blood collection. .

It is an external view of the cassette for puncture needle cartridge storage concerning Embodiment 1 of this invention. It is a block diagram of the said puncture needle cartridge storage cassette at the time of unused in Embodiment 1 of this invention. It is sectional drawing of the said puncture needle cartridge storage cassette at the time of unused in Embodiment 1 of this invention. It is an external view of the puncture device concerning Embodiment 1 of this invention. It is sectional drawing at the time of mounting | wearing the said puncture device with the said puncture needle cartridge in Embodiment 1 of this invention. FIG. 3 is a cross-sectional view when the used puncture needle cartridge is discarded in the puncture needle cartridge storage cassette in Embodiment 1 of the present invention. FIG. 3 is a cross-sectional view of the puncture needle cartridge storage cassette after discarding the puncture needle cartridge in Embodiment 1 of the present invention. It is a figure which shows the accommodation form of the conventional puncture device and a puncture needle cartridge.

Explanation of symbols

100 Puncture needle cartridge storage cassette 101 Base 102 Side wall 102a Side wall convex portion 103 Film-like member 104 Cut 105 Puncture needle cartridge 200 Puncture instrument 201 Housing 201a Lock portion 202 Plunger 202a Lancet main body holding portion 203 Puncture button 204 Puncture depth adjustment Ring 205 Charge spring 301 Holder 301a Holder convex portion 302 Lancet main body 303 Lancet needle tip portion 304 Needle tip protection cap 305 Engaging portion 306 Column 308 Disc convex portion 309 Claw portion 310, 311 Convex portion 400 Blood sampling puncture device 401 Puncture device Main body 402 Puncture needle cartridge 403 Lancet needle tip portion 404 Lancet 405 Needle tip protection cap 406 Holder 407 Puncture needle cartridge storage bag

Claims (10)

A plurality of puncture needle cartridges comprising a lancet body having a protruding needle tip portion, a lancet having a needle tip protection cap for protecting the needle tip portion of the lancet body, and a cylindrical holder for housing the lancet, Individually stored in a plurality of storage chambers that are separated and erected by a side wall integrally formed on one base;
The tips of the needle tip protection caps of the plurality of stored puncture needle cartridges are each erected on the one base.
A cassette for storing a puncture needle cartridge. The cassette for storing a puncture needle cartridge according to claim 1,
The plurality of puncture needle cartridges are two-dimensionally arranged in parallel on the one base.
A cassette for storing a puncture needle cartridge. The puncture needle cartridge storage cassette according to claim 1 or 2,
The plurality of storage chambers that are formed by the side wall and store the puncture needle cartridge are integrally covered with a film-like member at the top of the plurality of storage chambers.
A cassette for storing a puncture needle cartridge. The puncture needle cartridge storage cassette according to claim 3,
The film-like member has a notch that is easily broken at the center of the portion covering the storage chamber.
A cassette for storing a puncture needle cartridge. The puncture needle cartridge storage cassette according to any one of claims 1 to 4,
In the puncture needle cartridge, when the puncture needle cartridge is pulled away from the base, the needle tip portion of the lancet main body is exposed in the holder, and the needle tip protection cap remains standing on the base Remain,
A cassette for storing a puncture needle cartridge. The puncture needle cartridge storage cassette according to claim 5,
The used puncture needle cartridge is inserted into the original storage chamber of the puncture needle cartridge storage cassette while the puncture needle cartridge is held and attached to the puncture device, and the needle tip protection cap left on the base The used puncture needle cartridge is obtained by capturing the needle tip portion of the used lancet main body, engaging the concave and convex portions provided on the outside and the side wall of the holder, and pulling out the puncture device in this state. Is removed from the puncture device and discarded into the storage chamber.
A cassette for storing a puncture needle cartridge. A blood sampling puncture device used in combination with the puncture needle cartridge stored in the puncture needle cartridge storage cassette according to claim 1,
The blood collection puncture device main body is moved from the rear end side of the puncture needle cartridge along the axial direction thereof toward the puncture needle cartridge so as to insert the puncture needle cartridge into the blood collection puncture device. A plunger provided inside the puncture device main body for automatically holding the rear portion of the lancet main body,
A puncture device for blood collection characterized by the above. The puncture device for blood collection according to claim 7,
After the plunger holds the rear part of the lancet body, when the puncture device body is further moved toward the puncture needle cartridge, the plunger is pushed by the lancet body and the plunger is moved toward the rear end of the puncture device body. The tip of the housing that houses the plunger locks the lancet main body holding portion of the plunger, and pulls the blood sampling puncture device in this state, whereby the needle tip protection cap of the puncture needle cartridge The lancet body is separated, and the puncture needle cartridge is mounted with the needle tip portion exposed in the holder.
A puncture device for blood collection characterized by the above. The puncture device for blood collection according to claim 8,
Due to the movement of the plunger toward the rear end of the puncture device body, a biasing force in the distal direction of the puncture device body necessary for puncturing is stored.
A puncture device for blood collection characterized by the above. The puncture device for blood collection according to claim 8,
The movement of the plunger in the direction of the distal end of the puncture device body when performing puncture is performed so that the housing distal end and the plunger are unlocked.
A puncture device for blood collection characterized by the above.

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