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WO1999030755A1 - Bellows-type pump for medical use - Google Patents

Bellows-type pump for medical use Download PDF

Info

Publication number
WO1999030755A1
WO1999030755A1 PCT/CN1997/000144 CN9700144W WO9930755A1 WO 1999030755 A1 WO1999030755 A1 WO 1999030755A1 CN 9700144 W CN9700144 W CN 9700144W WO 9930755 A1 WO9930755 A1 WO 9930755A1
Authority
WO
WIPO (PCT)
Prior art keywords
elastic frame
corrugated
bellows
inlet
pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN1997/000144
Other languages
English (en)
French (fr)
Inventor
Hong Jia
Hong Wu
Ying Jia
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to PCT/CN1997/000144 priority Critical patent/WO1999030755A1/zh
Priority to AU53968/98A priority patent/AU5396898A/en
Publication of WO1999030755A1 publication Critical patent/WO1999030755A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/80—Suction pumps
    • A61M1/82—Membrane pumps, e.g. bulbs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/80—Suction pumps

Definitions

  • Corrugated tube type medical pump The utility model relates to a corrugated tube type medical pump, which is especially suitable for use at the emergency site.
  • sputum, pus, blood, and amniotic fluid are often attracted and washed.
  • sputum, pus, and blood have a certain degree of sputum
  • most of the membrane-type electromechanical aspirators are currently used, and the suction is required to be controlled at any time during the suction, and intermittent Intermittent operation makes the electromechanical control mechanism complicated, cumbersome to operate, bulky, and costly, and it is difficult to popularize it to the emergency site.
  • the purpose of the utility model is to provide a medical pump which is compact, lightweight, hygienic and inexpensive, and can be used once.
  • the corrugated tube medical pump of the utility model is composed of an elastic frame and a corrugated pump barrel with inlet and outlet tubes.
  • the elastic frame is an 8-shaped or U-shaped upper opening.
  • the corrugated pump barrel has two inlet and outlet tubes. The ends are respectively clamped at two ends of the elastic frame. Springs can be added to the elastic frame to increase elasticity.
  • the elastic frame is manually stretched or the foot is compressed to change the volume of the corrugated pump barrel to produce a pressure difference.
  • the corrugated pump barrel has the characteristics of easy axial deformation and large radial pressure resistance, so it can form a pump barrel with high efficiency, no leakage and good charge and suction performance.
  • the elastic frame is a single component and easy to manufacture.
  • the medical pump of the utility model has the advantages of simple structure, low cost, convenient and quick assembly and disassembly.
  • FIG. 1 shows a first embodiment of the present invention, which is a manual attractor.
  • FIG. 2 shows a second embodiment of the present invention, which is a foot-suction and suction pump.
  • the manual suction device shown in FIG. 1 is composed of a corrugated pump cylinder 1, an "8" elastic frame with an upper opening, an inlet pipe 3 with a check valve, an outlet pipe 4, and a liquid bag 5.
  • the lower part of the elastic frame is for increasing elasticity.
  • a U-shaped leaf spring 6 can be added, and the ends of the inlet and outlet pipes of the corrugated pump barrel are separately clamped on the elastic frame On both ends, the inlet and outlet pipes can be equipped with film tube type or knife chip type check valves.
  • the front section of the inlet tube that contacts the human body may be a soft tube, and the rear section connected to the corrugated pump barrel is a hard tube, which will not hurt the human body and control the suction position.
  • the foot charging pump of Fig. 2 is composed of a corrugated pump barrel 9 and a U-shaped elastic frame 11.
  • the upper end of the pump barrel is provided with an inlet pipe 7 and an outlet pipe 8 with a check valve.
  • a coil spring 12 can be added on both sides of the elastic frame to increase the elastic force.
  • a one-time transition suction bottle with a built-in air cushion can be connected to the front end of the inlet pipe.
  • the pedal pump has a large power, can be used for charging and suction, is convenient to switch, and has many uses, for example, it can be used in a vacuum stretcher and a pneumatic hemostatic suit for emergency.
  • the corrugated pump cylinder of the utility model can be manufactured by a blow molding process, has a low cost, is very healthy, and can be used once.
  • the elastic frame can be made of steel sheet or engineering plastic at one time, and can be used repeatedly. After testing, the suction can reach 0.08 MPa, and the weight is only 60-200 grams, which is especially suitable for on-site first aid and home beds. At present, people attach great importance to the problems of first aid and cross infection, so the utility model has broad application prospects.

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • External Artificial Organs (AREA)

Description

波纹管式医用泵 本实用新型涉及一种波紋管式医用泵， 尤其适合于急救现场使用。 医疗护理上常要吸引、 冲洗痰、 脓、 血、 羊水等， 因痰、 脓、 血有 一定粕度， 目前大多使用膜式机电吸引器， 又因吸引时要求随时控制吸 力大小， 还要求间歇断续操作， 使得机电式的控制机构复杂， 操作麻烦， 体积笨重， 成本较高， 难于普及到急救现场使用。 目前市场上有一类小 型脚踏或手动的活塞式医用吸引器， 其结构对制造工艺的要求较高， 因 此成本也较高， 难以普及应用， 并且这类医用吸引器都是多人次使用， 要经常清洗消毒， 比较麻烦， 虽然有时所吸痰液、 羊水不过几十毫升， 但如果吸引不及时， 也会造成窒息死亡的严重后果， 这种情况在新生婴 儿和患病老人中时有发生。 中国实用新型专利 95235398. 9号公开了一种 手动吸痰器， 它由框架、 拉压把、 弹簧和抽吸管构成， 结构比较复杂， 并且产生的抽吸负压小。
本实用新型的目的是提供一种小巧轻便、 卫生价廉、 能做到一人次 使用的医用泵。
本实用新型的波紋管式医用泵由弹性架和带有进、 出口管的波紋泵 筒组成， 弹性架是上开口的 8字型或 U型， 波纹泵筒的带有进、 出口管 的两端分别卡在弹性架的两端。 弹性架上可加上弹簧， 以增加弹力。
在使用时， 通过手动拉伸或脚踏压缩弹性架， 使波紋泵筒容积变化 而产生压力差。 由于波纹泵筒具有轴向易变形、 径向抗压力大的特点， 所以可形成效率高、 无泄露、 充吸性能好的泵筒。 并且， 弹性架是一个 单一部件， 容易制造。 本实用新型的医用泵具有结构简单、 成本低廉、 组装和拆卸方便快捷的优点。
下面结合附图对本实用新型作进一步的详细描述。
图 1示出本实用新型的第一个实施例， 为一手动吸引器。
图 2示出本实用新型的第二个实施例， 为一脚踏充吸泵。
图 1的手动吸引器由波紋泵筒 1、 上开口的 " 8 " 字型弹性架 2、 带有单向阀的进口管 3、 出口管 4及^液袋 5构成， 弹性架下部为增加 弹力可加一 U型片簧 6 , 波紋泵筒带进、 出口管的两端分开卡在弹性架 的两端上， 进、 出口管上可加有套膜管式或刀削片式单向阀。 进口管前 部接触人体的前段可以是软质管， 与波紋泵筒相接的后段是硬质管， 这 样既不会伤害人体， 又能控制吸引位置。
当用手握紧上开口的 " 8 " 字型弹性架时， 弹性架两端张开， 拉伸 波纹泵筒， 产生负压将待吸物 当手松开时， 弹性架回弹， 压缩波 纹泵筒， 将所吸液体压入^液袋中。 如此反复操作， 当^液袋吸满时， 可将其取下。
图 2的脚踏充吸泵由波紋泵筒 9和 U型弹性架 11构成， 泵筒的上端 设有带单向阀的进口管 7和出口管 8， 弹性架的下端安有几个垫脚 1 0 , 弹性架的两边为增加弹力可加一螺旋弹簧 12。 为减少医疗操作时对波紋 泵的污染， 降低一人次使用的费用， 可在进口管前端连接一个内装滤气 垫的一人次使用的过渡吸引瓶 13。 这种脚踏式泵的功率较大， 可以充、 吸两用， 转换方便， 用途较多， 例如可用于急救的真空担架和气压止血 服上。
本实用新型的波纹泵筒可采用吹塑工艺制造， 成本 4艮低， 又十分卫 生， 可做到一人次使用； 弹性架可采用钢片或工程塑料的一次成型制做， 能反复使用。 经测试， 吸力可达 0. 08兆帕， 重量仅为 60-200克， 特别 适用于现场急救和家庭病床使用。 现在， 人们很重视急救和交叉感染问 题， 因此本实用新型具有广阔的应用前景。

Claims

权 利 要 求
1. 一种波紋管式医用泵， 由弹性架和带有进、 出口管的波紋泵筒构成, 其特征是： 波纹泵筒的带有进、 出口管的两端分别卡在弹性架的两端。
2. 根据权利要求 1所述的医用泵， 其特征是： 弹性架是上开口的 8字 型或 U型。
3. 根据权利要求 1或 2所述的医用泵， 其特征是： 在弹性架两边加上 一螺旋弹簧， 或在弹性架下部加一 U型片簧， 以增加弹力。
4. 根据权利要求 1至 3之一所述的医用泵， 其特征是： 波纹泵筒两端 的进口管和出口管上设有套膜管式或刀削片式单向阀。
5. 根据权利要求 1至 4之一所述的医用泵， 其特征是： 出口管上配有 ^液袋， 进口管的前部是软质管， 与波紋泵筒相接的后部是硬质管。
6. 根据权利要求 1至 5之一所述的医用泵， 其特征是： 进口管的前端 连接一个内装滤气垫的过渡吸引瓶。
PCT/CN1997/000144 1997-12-16 1997-12-16 Bellows-type pump for medical use Ceased WO1999030755A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN1997/000144 WO1999030755A1 (en) 1997-12-16 1997-12-16 Bellows-type pump for medical use
AU53968/98A AU5396898A (en) 1997-12-16 1997-12-16 Bellows-type pump for medical use

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN1997/000144 WO1999030755A1 (en) 1997-12-16 1997-12-16 Bellows-type pump for medical use

Publications (1)

Publication Number Publication Date
WO1999030755A1 true WO1999030755A1 (en) 1999-06-24

Family

ID=4575009

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN1997/000144 Ceased WO1999030755A1 (en) 1997-12-16 1997-12-16 Bellows-type pump for medical use

Country Status (2)

Country Link
AU (1) AU5396898A (zh)
WO (1) WO1999030755A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002076532A1 (en) * 2001-03-26 2002-10-03 Pawel Wisniewski A liquid displacement arrangement
WO2023096821A3 (en) * 2021-11-23 2023-08-17 Carefusion 303, Inc. Intravenous blood set foot pump
NO348305B1 (en) * 2024-04-30 2024-11-18 Bondhus As A medical manual suction device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809087A (en) * 1973-05-17 1974-05-07 R Lewis Closed wound suction apparatus having biased plate members
EP0218785A1 (de) * 1982-05-17 1987-04-22 Solco Basel Ag Gerät zur Aufnahme und Reinfusion von Blut
WO1992000111A1 (en) * 1990-06-26 1992-01-09 Regent Limited Mucus extractor
US5141503A (en) * 1991-01-29 1992-08-25 Sewell Jr Frank K Wound suction drainage system
US5549584A (en) * 1994-02-14 1996-08-27 The Kendall Company Apparatus for removing fluid from a wound

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809087A (en) * 1973-05-17 1974-05-07 R Lewis Closed wound suction apparatus having biased plate members
EP0218785A1 (de) * 1982-05-17 1987-04-22 Solco Basel Ag Gerät zur Aufnahme und Reinfusion von Blut
WO1992000111A1 (en) * 1990-06-26 1992-01-09 Regent Limited Mucus extractor
US5141503A (en) * 1991-01-29 1992-08-25 Sewell Jr Frank K Wound suction drainage system
US5549584A (en) * 1994-02-14 1996-08-27 The Kendall Company Apparatus for removing fluid from a wound

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002076532A1 (en) * 2001-03-26 2002-10-03 Pawel Wisniewski A liquid displacement arrangement
WO2023096821A3 (en) * 2021-11-23 2023-08-17 Carefusion 303, Inc. Intravenous blood set foot pump
NO348305B1 (en) * 2024-04-30 2024-11-18 Bondhus As A medical manual suction device
WO2025230424A1 (en) * 2024-04-30 2025-11-06 Bondhus As Medical manual suction pump

Also Published As

Publication number Publication date
AU5396898A (en) 1999-07-05

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