CN203829454U - A Peripheral Central Catheter (PICC) - Google Patents
A Peripheral Central Catheter (PICC) Download PDFInfo
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- CN203829454U CN203829454U CN201420134333.9U CN201420134333U CN203829454U CN 203829454 U CN203829454 U CN 203829454U CN 201420134333 U CN201420134333 U CN 201420134333U CN 203829454 U CN203829454 U CN 203829454U
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- pressure
- catheter body
- slit
- guide part
- catheter
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- 230000002093 peripheral effect Effects 0.000 title claims description 9
- 239000012530 fluid Substances 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000741 silica gel Substances 0.000 claims abstract description 4
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 4
- 230000002457 bidirectional effect Effects 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000008280 blood Substances 0.000 abstract description 12
- 210000004369 blood Anatomy 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 210000004204 blood vessel Anatomy 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 206010001526 Air embolism Diseases 0.000 description 1
- 208000031074 Reinjury Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000002620 vena cava superior Anatomy 0.000 description 1
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- Media Introduction/Drainage Providing Device (AREA)
Abstract
Description
【技术领域】【Technical field】
本实用新型涉及一种医疗器械，尤其是一种带有压力双叶双向门式的经外周中心静脉导管（简称PICC）。The utility model relates to a medical device, in particular to a peripheral central venous catheter (PICC for short) with pressure double-leaf bidirectional door type.
【背景技术】【Background technique】
目前，市场上现有的经外周中心静脉导管(简称PICC)在临床使用时，容易打折、堵塞、刺破血管等问题，同时也不容易拔出钢丝，致使给患者带来痛苦，并对患者造成二次伤害；另外，传统的经外周中心静脉导管在输液或者抽血时，其直接与输液瓶或者试剂管连接，使用过程中容易形成气栓，也容易出现血液倒流或凝固问题。At present, the existing peripheral central venous catheters (PICC for short) on the market are prone to problems such as discounting, blockage, and puncture of blood vessels when they are used clinically. Cause secondary injury; In addition, when the traditional peripheral central venous catheter is infused or blood is drawn, it is directly connected to the infusion bottle or reagent tube, which is easy to form air embolism during use, and also prone to blood backflow or coagulation.
本实用新型即针对现有技术的不足研究而提出。The utility model proposes in view of the insufficient research of the prior art.
【实用新型内容】【Content of utility model】
本实用新型要解决的技术问题是提供一种带有压力双叶双向门式的经外周中心静脉导管，导管本体为柔性的硅胶材料制成，在导管本体内设有流体通道，导管本体前端端口密封连接有堵头，该堵头在插入活体组织中具有引导作用，使之具有良好的导向性，在靠近导管本体前端沿轴向划设有细缝长口，该细缝长口沿轴向的槽长为A，满足：A<50mm,使用时，该细缝长口在-8～80mmHg的压力作用下处于闭合状态，此时既不能输送流体，也不能抽血，可防止血液倒流，当细缝槽孔受到压力大于80mmHg的压力时，可利用本实用新型进行输送流体，当细缝槽孔受到的压力小于-8mmHg时，则可进行抽血，具有正负压导通的功能，使用安全，结构简单。The technical problem to be solved by this utility model is to provide a kind of transperipheral central venous catheter with pressure double-leaf two-way door type. The catheter body is made of flexible silicone material, and a fluid channel is arranged in the catheter body. The sealing connection is provided with a plug, which has a guiding role in inserting the living tissue, so that it has good guiding performance, and a long slit is defined along the axial direction near the front end of the catheter body, and the long slit is arranged along the axial direction The length of the groove is A, satisfying: A<50mm. When in use, the long opening of the slit is in a closed state under the pressure of -8~80mmHg. At this time, neither fluid can be transported nor blood can be drawn, which can prevent blood from flowing backward. When the pressure of the slit slot is greater than 80mmHg, the utility model can be used to transport fluid; when the pressure of the slit slot is less than -8mmHg, blood can be drawn, and it has the function of positive and negative pressure conduction. Safe to use and simple in structure.
为解决上述技术问题，本实用新型一种带有压力双叶双向门式的经外周中心静脉导管，包括由硅胶制成的呈柔性的导管本体,所述导管本体内设有用于输送流体的流体通道，所述导管本体前端连接有用于将导管本体的端口密封的堵头，所述导管本体靠近其前端沿轴向划设有在-8～80mmHg的压力作用下处于闭合的的细缝长口，所述细缝长口沿轴向的槽长为A，所述A满足A<50mm。In order to solve the above-mentioned technical problems, the utility model is a peripheral central venous catheter with pressure double-leaf bidirectional portal, which includes a flexible catheter body made of silica gel, and the catheter body is provided with a fluid for transporting fluid. Channel, the front end of the catheter body is connected with a plug for sealing the port of the catheter body, and the catheter body is axially defined near the front end with a long slit that is closed under the pressure of -8 to 80 mmHg , the slot length of the long opening of the slit along the axial direction is A, and the A satisfies A<50mm.
所述堵头包括用于引导插入活体组织中的导向部和与导向部连接的用于与导管本体前端端口密封配合的密封部。The plug includes a guide part for guiding insertion into the living tissue and a sealing part connected with the guide part for sealing cooperation with the front end port of the catheter body.
所述导向部呈子弹头状，所述导向部前端设有导向球面，所述导向部中部设有用于与导向球面和导向部后端平滑过渡的过渡弧面，所述导向部后端直径与导管本体外径相等。The guide part is bullet-shaped, the front end of the guide part is provided with a guide spherical surface, and the middle part of the guide part is provided with a transition arc surface for smooth transition with the guide spherical surface and the rear end of the guide part, and the diameter of the rear end of the guide part is the same as The outer diameters of the catheter bodies are equal.
所述密封部呈圆柱体或者圆锥体。The sealing part is in the shape of a cylinder or a cone.
本实用新型一种带有压力双叶双向门式的经外周中心静脉导管，导管本体为柔性的硅胶材料制成，在导管本体内设有流体通道，导管本体前端端口密封连接有堵头，该堵头在插入活体组织中具有引导作用，使之具有良好的导向性，在靠近导管本体前端沿轴向划设有细缝长口，该细缝长口沿轴向的槽长为A，满足：A<50mm,使用时，该细缝长口在-8～80mmHg的压力作用下处于闭合状态，此时既不能输送流体，也不能抽血，可防止血液倒流，当细缝槽孔受到压力大于80mmHg的压力时，可利用本实用新型进行输送流体，当细缝槽孔受到的压力小于-8mmHg时，则可进行抽血，具有正负压导通的功能，使用安全，结构简单。The utility model is a peripheral central venous catheter with pressure double-leaf two-way door type. The catheter body is made of flexible silicone material. There is a fluid channel in the catheter body. The front end port of the catheter body is sealed and connected with a plug. The plug has a guiding effect when inserted into the living tissue, so that it has good guiding performance. A long slit is defined along the axial direction near the front end of the catheter body. The length of the long slit along the axial direction is A, which meets the requirements of : A<50mm, when in use, the long opening of the slit is in a closed state under the pressure of -8~80mmHg. When the pressure is greater than 80mmHg, the utility model can be used to transport fluid. When the pressure on the slit slot is less than -8mmHg, blood can be drawn. It has the function of positive and negative pressure conduction, safe to use, and simple in structure.
【附图说明】【Description of drawings】
下面结合附图对本实用新型的具体实施方式作进一步详细说明，其中：Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail, wherein:
图1为本实用新型结构示意图。Fig. 1 is the structural representation of the utility model.
图2为本实用新型的爆炸视图。Fig. 2 is an exploded view of the utility model.
图3为本实用新型的剖视图。Fig. 3 is a sectional view of the utility model.
【具体实施方式】【Detailed ways】
下面结合附图对本实用新型的实施方式作详细说明。Below in conjunction with accompanying drawing, the embodiment of the present utility model is described in detail.
本实用新型一种带有压力双叶双向门式的经外周中心静脉导管，包括由硅胶制成的呈柔性的导管本体1,所述导管本体1内设有用于输送流体的流体通道2，所述导管本体1前端连接有用于将导管本体1的端口密封的堵头3，所述导管本体1靠近其前端沿轴向划设有在-8～80mmHg的压力作用下处于闭合状态的细缝长口4，所述细缝长口4沿轴向的槽长为A，所述A满足A<50mm。The utility model is a peripheral central venous catheter with pressure double-leaf bidirectional portal type, which includes a flexible catheter body 1 made of silica gel. The catheter body 1 is provided with a fluid channel 2 for transporting fluid. The front end of the catheter body 1 is connected with a plug 3 for sealing the port of the catheter body 1, and the catheter body 1 is provided with a slit that is closed under the pressure of -8 to 80mmHg along the axial direction near the front end of the catheter body. The mouth 4, the slot length of the slit slot 4 along the axial direction is A, and the A satisfies A<50mm.
所述堵头3包括用于引导插入活体组织中的导向部31和与导向部31连接的用于与导管本体1前端端口密封配合的密封部32。The plug 3 includes a guide part 31 for guiding insertion into living tissue, and a sealing part 32 connected with the guide part 31 for sealing engagement with the front end port of the catheter body 1 .
为了便于引导插入活体组织中，所述导向部31呈子弹头状，所述导向部31前端设有导向球面33，所述导向部31中部设有用于与导向球面33和导向部31后端平滑过渡的过渡弧面34，所述导向部31后端直径与导管本体1外径相等，避免因连接处过渡不平滑，致使再次伤及患者。In order to guide and insert into the living tissue, the guide part 31 is bullet-shaped. For the transition arc surface 34, the diameter of the rear end of the guide part 31 is equal to the outer diameter of the catheter body 1, so as to avoid re-injury to the patient due to uneven transition at the connection.
所述密封部32呈圆柱体或者圆锥体。The sealing portion 32 is in the shape of a cylinder or a cone.
当流体通道2内部压力大于80mmHg时，流体则可以经细缝长口4流出，并注入活体组织中，以进行输送流体，达到治疗目的。When the internal pressure of the fluid channel 2 is greater than 80mmHg, the fluid can flow out through the slit slot 4 and be injected into the living tissue to transport the fluid and achieve the purpose of treatment.
当流体通道2内部压力小于-8mmHg时，如果插入的是血管，活体中的血液则可以从细缝长口4进入流体通道2，以进行抽血，达到采集血液的目的。When the internal pressure of the fluid channel 2 is less than -8mmHg, if a blood vessel is inserted, the blood in the living body can enter the fluid channel 2 from the slit slot 4 to draw blood and achieve the purpose of blood collection.
当流体通道2内部压力介于-8mmHg～80mmHg时，细缝长口4处于闭合状态，根据人体上腔静脉正常中心静脉压力，其范围为0～5mmHg，本实用新型中的细缝长口4在压力范围-8～80mmHg时，处于闭合状态。When the internal pressure of the fluid channel 2 is between -8mmHg and 80mmHg, the long slit 4 is in a closed state. According to the normal central venous pressure of the human superior vena cava, its range is 0 to 5mmHg. The long slit 4 in the utility model When the pressure range is -8 ~ 80mmHg, it is in a closed state.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420134333.9U CN203829454U (en) | 2014-03-24 | 2014-03-24 | A Peripheral Central Catheter (PICC) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420134333.9U CN203829454U (en) | 2014-03-24 | 2014-03-24 | A Peripheral Central Catheter (PICC) |
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| Publication Number | Publication Date |
|---|---|
| CN203829454U true CN203829454U (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420134333.9U Expired - Fee Related CN203829454U (en) | 2014-03-24 | 2014-03-24 | A Peripheral Central Catheter (PICC) |
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| CN (1) | CN203829454U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106861034A (en) * | 2017-03-27 | 2017-06-20 | 郑州迪奥医学技术有限公司 | Conduit lower resistance three-dimensional valve |
| CN108355225A (en) * | 2018-01-24 | 2018-08-03 | 山东百多安医疗器械有限公司 | A kind of ductus venosus and preparation method thereof with the dual anti-valve that backflows |
| CN112169138A (en) * | 2020-10-30 | 2021-01-05 | 苏州伟康医疗器械有限公司 | End cap bonding process of catheter and catheter |
-
2014
- 2014-03-24 CN CN201420134333.9U patent/CN203829454U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106861034A (en) * | 2017-03-27 | 2017-06-20 | 郑州迪奥医学技术有限公司 | Conduit lower resistance three-dimensional valve |
| CN108355225A (en) * | 2018-01-24 | 2018-08-03 | 山东百多安医疗器械有限公司 | A kind of ductus venosus and preparation method thereof with the dual anti-valve that backflows |
| CN112169138A (en) * | 2020-10-30 | 2021-01-05 | 苏州伟康医疗器械有限公司 | End cap bonding process of catheter and catheter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20160324 |