WO2015172423A1 - Safe pump indwelling needle - Google Patents

Safe pump indwelling needle Download PDF

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Publication number
WO2015172423A1
WO2015172423A1 PCT/CN2014/080489 CN2014080489W WO2015172423A1 WO 2015172423 A1 WO2015172423 A1 WO 2015172423A1 CN 2014080489 W CN2014080489 W CN 2014080489W WO 2015172423 A1 WO2015172423 A1 WO 2015172423A1
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WO
WIPO (PCT)
Prior art keywords
liquid
indwelling needle
tube
way
valve body
Prior art date
Application number
PCT/CN2014/080489
Other languages
French (fr)
Chinese (zh)
Inventor
毛亚凌
Original Assignee
上海金塔医用器材有限公司
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Publication date
Application filed by 上海金塔医用器材有限公司 filed Critical 上海金塔医用器材有限公司
Publication of WO2015172423A1 publication Critical patent/WO2015172423A1/en

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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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/148—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons flexible, e.g. independent bags
    • A61M5/152—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons flexible, e.g. independent bags pressurised by contraction of elastic reservoirs
    • 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body

Definitions

  • the invention relates to a safety pump indwelling needle. Background technique
  • Infusion sets are commonly used medical devices that include an infusion tube and an infusion needle.
  • One end of the infusion tube is connected to the drug, and the other end is connected to the infusion needle.
  • the drug flows through the infusion tube and the infusion needle into the blood vessels of the human body.
  • an indwelling needle After stopping the infusion, in order to facilitate the next infusion, it is sometimes necessary to leave the infusion needle, which is usually called an indwelling needle.
  • an indwelling needle In the current infusion set, when the infusion needle is left in place, blood backflow occurs due to the pressure of the human blood itself, that is, the venous blood flows back into the indwelling needle and the tube. In this way, it will cause panic to the patient and cause certain harm to the human body.
  • the thrombus that blocks the infusion needle after the blood is returned may cause secondary danger due to clogging of the blood clot. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a safety pump indwelling needle in order to overcome the defect that the existing infusion set has a blood return phenomenon when the infusion needle is left.
  • a safety pump indwelling needle comprising an infusion tube and an indwelling needle, the indwelling needle being connected to one end of the infusion tube, wherein the safety pump indwelling needle further comprises a liquid retaining device, the remaining
  • the liquid reservoir comprises a casing, a liquid storage, a one-way three-channel valve body, a liquid chemical filter and a cover, the liquid storage, the one-way three-channel valve body and the liquid chemical filter Located in the casing, three channels of the one-way three-channel valve body are respectively connected to the liquid storage, the liquid chemical filter and the cover body, and the other end of the liquid chemical filter is connected to a liquid medicine
  • the tube is connected to the infusion tube through a tee tube.
  • the liquid medicine tube is connected to the three-way tube through a screw joint.
  • the passage of the one-way three-channel valve body connected to the cover body protrudes from the housing, and the cover body is fixed to the housing by a string member.
  • the inner diameter of the liquid medicine tube is 0.001 to 0.2 mm.
  • the liquid storage is in the form of a hollow capsule, and the material for storing the liquid is a malleable material.
  • the malleable material is latex or silica gel.
  • the positive progress of the present invention is: at the end of the infusion, the device of the present invention generates pressure by retracting the characteristic property of the liquid storage, and the uninterrupted micro-quantification of the liquid enters the human body through the indwelling needle, preventing the blood in the venous blood vessel from flowing back to the indwelling needle. And infusion tube. In this way, the panic caused by venous return can be avoided. In addition, it can avoid the problem of clogging of the infusion needle caused by thrombus after venous return, and overcome the secondary danger caused by thrombus clogging.
  • FIG. 1 is a schematic structural view of a preferred embodiment of the present invention.
  • Figure 2 is a schematic view showing the structure of a liquid storage.
  • Figure 3 is a schematic view showing the structure of a one-way three-channel valve body. detailed description
  • a safety pump indwelling needle includes an infusion tube 1 and an indwelling needle 2, and the indwelling needle 2 is connected to one end of the infusion tube 1, and the safety pump indwelling needle further includes a liquid retaining device 3.
  • the liquid retainer 3 includes a casing 31, a liquid storage 32, a one-way three-channel valve body 35, a chemical liquid filter 34 and a cover body 36, a liquid storage unit 32, a one-way three-channel valve body 35 and a chemical liquid filter 34.
  • the three passages of the one-way three-channel valve body 35 are respectively connected to the liquid storage 32, the chemical liquid filter 34 and the cover body 36, and the other end of the chemical liquid filter 34 is connected to the liquid medicine tube 33, the liquid medicine tube 33 is connected to the infusion tube 1 through the tee tube 4.
  • the liquid chemical filter, the one-way three-channel valve body and the liquid storage are common components in the conventional infusion device, and will not be described herein.
  • the one-way three-channel valve body is provided with three channels, the liquid-filling channel is connected with the cover body, the liquid-adding channel is a one-way channel, and the other two channels are in an intercommunication state when no liquid is added, and one of the channels is connected to the liquid storage, and is a medicine.
  • the liquid enters and exits the channel, and the other channel is connected to the liquid chemical filter, and the other end of the liquid chemical filter is connected to the liquid medicine tube, and the medical liquid tube is connected with the infusion tube.
  • medicine The liquid pipe uses a micro-quantity pipe to ensure the output speed of the liquid.
  • the automatic continuous shrinkage of the storage liquid is mainly based on the characteristics of the liquid storage material, and the material is memorally modulated by a physical process, so that it can generate a retractive force safely and stably after being filled, and continuously discharge the liquid in the body.
  • the lid body Before the end of the infusion, the lid body is opened, and the physiological saline is injected into the storage liquid through the one-way three-channel valve body.
  • the indwelling needle needs to be left in place.
  • the physiological saline sequentially passes through the one-way three-channel valve body, the liquid chemical filter and the liquid medicine tube to continuously enter the infusion tube continuously, and the infusion tube is in the infusion tube.
  • the liquid enters the blood vessels of the human body through the indwelling needle. Therefore, at the end of the infusion, the device of the present invention can provide a certain pressure to the blood vessel to prevent the blood in the vein from flowing back to the indwelling needle and the infusion tube. In this way, the fear of venous return can be avoided. In addition, it can avoid the problem of occlusion of the indwelling needle caused by thrombus after venous return, and overcome the secondary danger caused by thrombus clogging.
  • the liquid chemical tube 33 can also be connected to the tee tube 4 through the screw joint 37.
  • Screw joints are also common components. The user can easily connect the liquid reservoir and the infusion tube through the screw joint.
  • the passage connecting the one-way three-way valve body 35 to the cover body 36 protrudes from the housing 31, and the cover body 36 can be fixed to the housing 31 by a string member.
  • the inner diameter of the liquid medicine tube 33 may be 0.001 to 0.2 mm.
  • the liquid medicine tube is a micro-quantity line, which can control the outflow speed of the medicine liquid, so that the medicine liquid is slightly quantitatively discharged.
  • the storage liquid 32 is in the form of a hollow capsule, and the material of the storage liquid 32 is a malleable material, preferably latex or silica gel. Such a storage liquid has a good automatic shrinkage function and can continuously supply liquid.

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  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

A safe pump indwelling needle. The safe pump indwelling needle comprises an infusion tube (1) and an indwelling needle (2). The indwelling needle (2) is connected to one end of the infusion tube (1). The safe pump indwelling needle also comprises a liquid retention device (3). The liquid retention device (3) comprises a housing (31), a liquid storing body (32), a one-way three-channel valve body (35), a liquid medicine filter (34), and a cover body (36). The liquid storing body (32), the one-way three-channel valve body (35) and the liquid medicine filter (34) are all located in the housing (31). Three channels of the one-way three-channel valve body (35) are separately connected to the liquid storing body (32), the liquid medicine filter (34) and the cover body (36). The other end of the liquid medicine filter (34) is connected to a liquid medicine tube (33). The liquid medicine tube (33) is in communication with the infusion tube (1) by means of a three-way tube (4). The indwelling needle can prevent panic caused to a patient by venous blood backflow, the problem that the indwelling needle is blocked by blood clots after venous blood backflow is avoided, and accordingly, a secondary danger caused by blocking of blood clots is avoided.

Description

安全泵留置针 技术领域  Safety pump indwelling needle
本发明涉及一种安全泵留置针。 背景技术  The invention relates to a safety pump indwelling needle. Background technique
输液器是常用的医疗器械， 其包括输液管和输液针。 输液管的一端连接药品， 另一 端连接输液针。药品流经输液管和输液针进入人体血管。停止输液后，为方便下次输液， 有时需要将输液针留置， 该输液针通常称之为留置针。 目前使用的输液器， 在将输液针 留置时， 由于人体血液自身的压力， 会出现血液回流现象， 即静脉血液回流到留置针及 管路内。 这样， 会引起病人的恐慌， 并给人体造成一定的危害， 而且， 血液回流后的产 生血栓堵塞输液针， 会带来因血栓堵塞带来的继发危险。 发明内容  Infusion sets are commonly used medical devices that include an infusion tube and an infusion needle. One end of the infusion tube is connected to the drug, and the other end is connected to the infusion needle. The drug flows through the infusion tube and the infusion needle into the blood vessels of the human body. After stopping the infusion, in order to facilitate the next infusion, it is sometimes necessary to leave the infusion needle, which is usually called an indwelling needle. In the current infusion set, when the infusion needle is left in place, blood backflow occurs due to the pressure of the human blood itself, that is, the venous blood flows back into the indwelling needle and the tube. In this way, it will cause panic to the patient and cause certain harm to the human body. Moreover, the thrombus that blocks the infusion needle after the blood is returned may cause secondary danger due to clogging of the blood clot. Summary of the invention
本发明要解决的技术问题是为了克服现有输液器将输液针留置时存在血液回流现象 的缺陷， 提供一种安全泵留置针。  The technical problem to be solved by the present invention is to provide a safety pump indwelling needle in order to overcome the defect that the existing infusion set has a blood return phenomenon when the infusion needle is left.
本发明是通过下述技术方案来解决上述技术问题：  The present invention solves the above technical problems by the following technical solutions:
一种安全泵留置针， 其包括一输液管和一留置针， 所述留置针连接于所述输液管的 一端， 其特点在于， 所述安全泵留置针还包括一留液器， 所述留液器包括一壳体、 一储 液体、 一单向三通道阀体、 一药液过滤器和一盖体， 所述储液体、 所述单向三通道阀体 和所述药液过滤器均位于所述壳体内， 所述单向三通道阀体的三个通道分别连接所述储 液体、 所述药液过滤器和所述盖体， 所述药液过滤器的另一端连接一药液管， 所述药液 管通过一三通管与所述输液管连通。  A safety pump indwelling needle comprising an infusion tube and an indwelling needle, the indwelling needle being connected to one end of the infusion tube, wherein the safety pump indwelling needle further comprises a liquid retaining device, the remaining The liquid reservoir comprises a casing, a liquid storage, a one-way three-channel valve body, a liquid chemical filter and a cover, the liquid storage, the one-way three-channel valve body and the liquid chemical filter Located in the casing, three channels of the one-way three-channel valve body are respectively connected to the liquid storage, the liquid chemical filter and the cover body, and the other end of the liquid chemical filter is connected to a liquid medicine The tube is connected to the infusion tube through a tee tube.
较佳地， 所述药液管通过一螺旋接头与所述三通管连接。  Preferably, the liquid medicine tube is connected to the three-way tube through a screw joint.
较佳地， 所述单向三通道阀体与所述盖体连接的通道凸出于所述壳体， 所述盖体通 过一绳状部件固接于所述壳体。 较佳地， 所述药液管的内径为 0.001~0.2毫米。 Preferably, the passage of the one-way three-channel valve body connected to the cover body protrudes from the housing, and the cover body is fixed to the housing by a string member. Preferably, the inner diameter of the liquid medicine tube is 0.001 to 0.2 mm.
较佳地， 所述储液体为中空囊状， 所述储液体的材料为可延展性材料。  Preferably, the liquid storage is in the form of a hollow capsule, and the material for storing the liquid is a malleable material.
较佳地， 所述可延展性材料为乳胶或硅胶。  Preferably, the malleable material is latex or silica gel.
本发明的积极进步效果在于： 在输液结束时， 本发明的装置通过储液体特性性能回 缩产生压力， 将液体不间断的微定量通过留置针进入人体， 防止静脉血管内的血液倒流 回留置针及输液管。 这样， 可以避免静脉血液回流给病人带来的恐慌。 此外， 还能避免 因静脉血液回流后血栓造成输液针堵塞的问题， 克服血栓堵塞带来的继发危险。 附图说明  The positive progress of the present invention is: at the end of the infusion, the device of the present invention generates pressure by retracting the characteristic property of the liquid storage, and the uninterrupted micro-quantification of the liquid enters the human body through the indwelling needle, preventing the blood in the venous blood vessel from flowing back to the indwelling needle. And infusion tube. In this way, the panic caused by venous return can be avoided. In addition, it can avoid the problem of clogging of the infusion needle caused by thrombus after venous return, and overcome the secondary danger caused by thrombus clogging. DRAWINGS
图 1为本发明较佳实施例的结构示意图。  1 is a schematic structural view of a preferred embodiment of the present invention.
图 2为储液体的结构示意图。  Figure 2 is a schematic view showing the structure of a liquid storage.
图 3为单向三通道阀体的结构示意图。 具体实施方式  Figure 3 is a schematic view showing the structure of a one-way three-channel valve body. detailed description
下面结合附图给出本发明较佳实施例， 以详细说明本发明的技术方案， 但并不因此 将本发明限制在所述的实施例范围之中。  The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.
如图 1、 图 2和图 3所示， 一种安全泵留置针， 其包括输液管 1和留置针 2， 留置针 2连接于输液管 1的一端， 安全泵留置针还包括留液器 3， 留液器 3包括壳体 31、储液体 32、 单向三通道阀体 35、 药液过滤器 34和盖体 36， 储液体 32、 单向三通道阀体 35和药 液过滤器 34均位于壳体 31内，单向三通道阀体 35的三个通道分别连接储液体 32、药液 过滤器 34和盖体 36， 药液过滤器 34的另一端连接药液管 33， 药液管 33通过三通管 4 与输液管 1连通。  As shown in FIG. 1, FIG. 2 and FIG. 3, a safety pump indwelling needle includes an infusion tube 1 and an indwelling needle 2, and the indwelling needle 2 is connected to one end of the infusion tube 1, and the safety pump indwelling needle further includes a liquid retaining device 3. The liquid retainer 3 includes a casing 31, a liquid storage 32, a one-way three-channel valve body 35, a chemical liquid filter 34 and a cover body 36, a liquid storage unit 32, a one-way three-channel valve body 35 and a chemical liquid filter 34. Located in the casing 31, the three passages of the one-way three-channel valve body 35 are respectively connected to the liquid storage 32, the chemical liquid filter 34 and the cover body 36, and the other end of the chemical liquid filter 34 is connected to the liquid medicine tube 33, the liquid medicine tube 33 is connected to the infusion tube 1 through the tee tube 4.
药液过滤器、 单向三通道阀体和储液体是现有输液装置中常用的部件， 在此就不再 赘述。单向三通道阀体设有三个通道，与盖体连接的为加液通道，加液通道为单向通道， 其余两通道在不加液时为互通状态， 其中一个通道连接储液体， 为药液进出通道， 另外 一个通道连接药液过滤器， 药液过滤器的另一端连接药液管， 药液管与输液管连接。 药 液管采用微定量管路， 保证药液的输出速度。 储液体的自动持续收缩主要根据储液体材 料特性， 材料通过物理过程进行记忆性调制， 使其在充溢后能安全稳定的产生回缩力， 将体内液体持续输出。 The liquid chemical filter, the one-way three-channel valve body and the liquid storage are common components in the conventional infusion device, and will not be described herein. The one-way three-channel valve body is provided with three channels, the liquid-filling channel is connected with the cover body, the liquid-adding channel is a one-way channel, and the other two channels are in an intercommunication state when no liquid is added, and one of the channels is connected to the liquid storage, and is a medicine. The liquid enters and exits the channel, and the other channel is connected to the liquid chemical filter, and the other end of the liquid chemical filter is connected to the liquid medicine tube, and the medical liquid tube is connected with the infusion tube. medicine The liquid pipe uses a micro-quantity pipe to ensure the output speed of the liquid. The automatic continuous shrinkage of the storage liquid is mainly based on the characteristics of the liquid storage material, and the material is memorally modulated by a physical process, so that it can generate a retractive force safely and stably after being filled, and continuously discharge the liquid in the body.
输液快结束前， 打开盖体， 将生理盐水通过单向三通道阀体， 注入储液体内。 当输 液完毕， 需要将留置针留置时， 在储液体的自动持续收缩下， 生理盐水依次通过单向三 通道阀体、 药液过滤器和药液管不间断持续微量进入输液管， 输液管内的液体通过留置 针进入人体血管。 因此， 在输液结束时， 本发明的装置可以给血管一定的压力， 防止静 脉血管内的血液倒流回留置针及输液管。 这样， 可以避免静脉血液回流给病人带来的恐 慌。 此外， 还能避免因静脉血液回流后血栓造成留置针堵塞的问题， 克服血栓堵塞带来 的继发危险。  Before the end of the infusion, the lid body is opened, and the physiological saline is injected into the storage liquid through the one-way three-channel valve body. When the infusion is completed, the indwelling needle needs to be left in place. Under the automatic continuous contraction of the stored liquid, the physiological saline sequentially passes through the one-way three-channel valve body, the liquid chemical filter and the liquid medicine tube to continuously enter the infusion tube continuously, and the infusion tube is in the infusion tube. The liquid enters the blood vessels of the human body through the indwelling needle. Therefore, at the end of the infusion, the device of the present invention can provide a certain pressure to the blood vessel to prevent the blood in the vein from flowing back to the indwelling needle and the infusion tube. In this way, the fear of venous return can be avoided. In addition, it can avoid the problem of occlusion of the indwelling needle caused by thrombus after venous return, and overcome the secondary danger caused by thrombus clogging.
在上述结构基础上， 药液管 33还可以通过螺旋接头 37与三通管 4连接。 螺旋接头 也是现有常见的部件。使用者通过螺旋接头，可以便捷地将留液器和输液管连接在一起。  Based on the above structure, the liquid chemical tube 33 can also be connected to the tee tube 4 through the screw joint 37. Screw joints are also common components. The user can easily connect the liquid reservoir and the infusion tube through the screw joint.
此外，单向三通道阀体 35与盖体 36连接的通道凸出于壳体 31，盖体 36可以通过绳 状部件固接于壳体 31。 这样， 当将盖体拧开时， 盖体不会掉， 从而避免造成环境污染。  Further, the passage connecting the one-way three-way valve body 35 to the cover body 36 protrudes from the housing 31, and the cover body 36 can be fixed to the housing 31 by a string member. Thus, when the cover is unscrewed, the cover does not fall, thereby avoiding environmental pollution.
药液管 33的内径可以为 0.001~0.2毫米。 这样， 药液管为微定量管路， 可以控制药 液的流出速度， 使药液微定量流出。  The inner diameter of the liquid medicine tube 33 may be 0.001 to 0.2 mm. In this way, the liquid medicine tube is a micro-quantity line, which can control the outflow speed of the medicine liquid, so that the medicine liquid is slightly quantitatively discharged.
储液体 32为中空囊状，储液体 32的材料为可延展性材料，较佳地，为乳胶或硅胶。 这样的储液体具有较好的自动收缩功能， 能持续地供液。  The storage liquid 32 is in the form of a hollow capsule, and the material of the storage liquid 32 is a malleable material, preferably latex or silica gel. Such a storage liquid has a good automatic shrinkage function and can continuously supply liquid.
虽然以上描述了本发明的具体实施方式， 但是本领域的技术人员应当理解， 这仅是 举例说明， 本发明的保护范围是由所附权利要求书限定的。 本领域的技术人员在不背离 本发明的原理和实质的前提下， 可以对这些实施方式做出多种变更或修改， 但这些变更 和修改均落入本发明的保护范围。 因此， 本发明的保护范围由所附权利要求书限定。  While the invention has been described with respect to the specific embodiments of the present invention, it is understood that the scope of the invention is defined by the appended claims. A person skilled in the art can make various changes or modifications to the embodiments without departing from the spirit and scope of the invention, and such changes and modifications fall within the scope of the invention. Accordingly, the scope of the invention is defined by the appended claims.

Claims

权利要求 Rights request
1、 一种安全泵留置针， 其包括一输液管和一留置针， 所述留置针连接于所述输液管 的一端， 其特征在于， 所述安全泵留置针还包括一留液器， 所述留液器包括一壳体、 一 储液体、 一单向三通道阀体、 一药液过滤器和一盖体， 所述储液体、 所述单向三通道阀 体和所述药液过滤器均位于所述壳体内， 所述单向三通道阀体的三个通道分别连接所述 储液体、 所述药液过滤器和所述盖体， 所述药液过滤器的另一端连接一药液管， 所述药 液管通过一三通管与所述输液管连通。  A safety pump indwelling needle comprising an infusion tube and an indwelling needle, the indwelling needle being connected to one end of the infusion tube, wherein the safety pump indwelling needle further comprises a liquid retaining device The liquid retaining device comprises a casing, a liquid storage, a one-way three-channel valve body, a chemical liquid filter and a cover, the liquid storage, the one-way three-channel valve body and the liquid filtering The two channels of the one-way three-channel valve body are respectively connected to the liquid storage, the liquid chemical filter and the cover body, and the other end of the liquid chemical filter is connected to one a liquid medicine tube, wherein the medical liquid tube is in communication with the infusion tube through a three-way tube.
2、 如权利要求 1所述的安全泵留置针， 其特征在于， 所述药液管通过一螺旋接头与 所述三通管连接。  2. The safety pump indwelling needle according to claim 1, wherein the medical fluid tube is connected to the tee through a screw joint.
3、 如权利要求 1或 2所述的安全泵留置针， 其特征在于， 所述单向三通道阀体与所 述盖体连接的通道凸出于所述壳体， 所述盖体通过一绳状部件固接于所述壳体。  The safety pump indwelling needle according to claim 1 or 2, wherein the passage of the one-way three-channel valve body connected to the cover body protrudes from the housing, and the cover body passes through a A string member is secured to the housing.
4、 如权利要求 1-3中至少一项所述的安全泵留置针， 其特征在于， 所述药液管的内 径为 0.001 0.2毫米。  The safety pump indwelling needle according to any one of claims 1 to 3, wherein the liquid medicine tube has an inner diameter of 0.001 0.2 mm.
5、 如权利要求 1-4中至少一项所述的安全泵留置针， 其特征在于， 所述储液体为中 空囊状， 所述储液体的材料为可延展性材料。  The safety pump indwelling needle according to at least one of claims 1 to 4, wherein the liquid storage is in the form of a hollow capsule, and the material of the liquid storage is a malleable material.
6、 如权利要求 5所述的安全泵留置针， 其特征在于， 所述可延展性材料为乳胶或硅 胶。  6. The safety pump indwelling needle of claim 5, wherein the malleable material is latex or silicone glue.
PCT/CN2014/080489 2014-05-15 2014-06-23 Safe pump indwelling needle WO2015172423A1 (en)

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CN201410205644.4A CN104001231B (en) 2014-05-15 2014-05-15 Safety pump remaining needle

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CN108261581B (en) * 2017-10-26 2018-11-13 江苏金塔药业有限公司 Liquid-feeding pump system
CN108578824A (en) * 2018-06-14 2018-09-28 潍坊医学院 It prevents from blocking after remaining needle tube sealing, the pump of thrombosis and its working method

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