CN103961781A - Air embolism resistant type central venous catheter - Google Patents
Air embolism resistant type central venous catheter Download PDFInfo
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- CN103961781A CN103961781A CN201410192505.2A CN201410192505A CN103961781A CN 103961781 A CN103961781 A CN 103961781A CN 201410192505 A CN201410192505 A CN 201410192505A CN 103961781 A CN103961781 A CN 103961781A
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- China
- Prior art keywords
- central venous
- venous catheter
- air embolism
- gap
- elastic plug
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Abstract
The invention discloses an air embolism resistant type central venous catheter which comprises a venous infusion end. An elastic rubber plug is embedded into a port of the venous infusion end. A gap is formed in the elastic rubber plug. One end of a central venous guide wire can be extruded into a venous infusion tube through the gap. When the central venous guide wire is drawn out, the gap in the elastic rubber plug is automatically closed. The air embolism resistant type central venous catheter has the advantages that air can not flow into the central venous catheter through an elastic membrane, so that air embolism is effectively avoided.
Description
Technical field
The invention belongs to medical equipment technical field, relate to a kind of anti-air embolism type central venous catheter.
Background technology
Central venous catheter (central venous catheter, CVC) belongs to the one of blood vessel inner tube, is positioned in large vein.Its main uses: measuring center venous pressure (centralvenous pressure, CVP), in order to assessments physiological parameter, and estimate body fluid number.Because measure this purposes of CVP, in Taiwan hospital, the often blackmail using CVP as CVC claims; Venous transfusion in a large number and fast, often appears at the operation that blood loss may be larger, or maintains blood pressure when first aid; The approach that gives of long-term parenteral, long-term injection of antibiotic, long-term analgesic injection; , change from central venous catheter and inject compared with the irritating medicine of tool for peripheral veins (venule).For example: Amiodarone etc.; The pipeline of hemodialysis, as plasmapheresis or wash kidney.But place for a long time, easily infect, the complication such as air embolism, infection can be taked strict sterile working, improves patient's resistance and prevents, but the complication that air embolism is central venous catheter to be difficult to overcome, once generation will directly jeopardize patient's life.
Summary of the invention
Object of the present invention, a kind of anti-air embolism type central venous catheter is provided, has solved existing central venous catheter air embolism has easily occurred, and jeopardizes the problem of patient's life.
The technical scheme that the present invention takes is to comprise venous transfusion end, venous transfusion end port is inlaid with an elastic plug, elastic plug is provided with gap, and central vein seal wire one end can be clamp-oned in intravenous by gap, and the gap in the time that central vein seal wire is extracted out on elastic plug is automatically closed.
Feature of the present invention is also that elastic plug 2 is made up of rubber or sponge.The port of venous transfusion end is provided with draw-in groove.
The invention has the beneficial effects as follows that air cannot enter central venous catheter by elastica, the air embolism of so just effectively avoiding.
Brief description of the drawings
Fig. 1 is a kind of anti-air embolism type of the present invention central venous catheter structural representation;
Fig. 2 is elastic plug schematic diagram;
Fig. 3 is draw-in groove schematic diagram.
In figure, 1. venous transfusion end, 2. elastic plug, 3. draw-in groove.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
The present invention comprises venous transfusion end 1 as depicted in figs. 1 and 2, venous transfusion end 1 port is inlaid with an elastic plug 2, the mosaic mode of elastic plug 2 can be fixed in the inwall of venous transfusion end 1 port with glue, or draw-in groove 3 is set in the time producing the port of venous transfusion end 1, can reduced volume fill in draw-in groove 3 because elastic plug 2 is flexible, automatically recover volume again and block the port of venous transfusion end 1, elastic plug 2 is provided with gap, central vein seal wire one end can be clamp-oned in intravenous by gap, gap in the time that central vein seal wire is extracted out on elastic plug 2 is automatically closed.Elastic plug 2 is made up of rubber or sponge.
Because central venous pressure is lower than external atmospheric pressure, therefore open central venous catheter air easily enters catheter interior and causes air embolism, and this is also one of common lethal complication of central venous catheter.Venous transfusion end 1 at central venous catheter place is inlayed elastic plug 2, stops that outside air enters central venous catheter, and pre-anti-air embolism occurs.Elastic plug 2 can be made with the larger material of the elasticity such as rubber, sponge, utilize external force can be easily by the central vein seal wire one end that connects transfusion device the gap from elastic plug 2 fill in, be connected with central venous catheter, after central vein seal wire is extracted, it is complete that the elasticity of elastic plug 2 self and bonding force can make elastica again reply, and stops that outside air enters.As Fig. 1 show be clinical conventional central venous catheter, this patent may extend to two-chamber and three chamber central venous catheters.
The outlet that the present invention has adopted elastic plug 2 to block central venous catheter, makes air enter central venous catheter by elastica, and in the time that needs are infused, does not affect transfusion and normally carry out, the air embolism of so just effectively avoiding.
Claims (3)
1. an anti-air embolism type central venous catheter, it is characterized in that: comprise venous transfusion end (1), venous transfusion end (1) port is inlaid with an elastic plug (2), elastic plug (2) is provided with the gap that connects two ends, central vein seal wire one end can be clamp-oned in intravenous by gap, and the gap in the time that central vein seal wire is extracted out on elastic plug (2) is automatically closed.
2. by a kind of anti-air embolism type central venous catheter shown in claim 1, it is characterized in that: described elastic plug (2) is made up of rubber or sponge.
3. by a kind of anti-air embolism type central venous catheter shown in claim 1, it is characterized in that: the port of described venous transfusion end (1) is provided with draw-in groove (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410192505.2A CN103961781A (en) | 2014-05-08 | 2014-05-08 | Air embolism resistant type central venous catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410192505.2A CN103961781A (en) | 2014-05-08 | 2014-05-08 | Air embolism resistant type central venous catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103961781A true CN103961781A (en) | 2014-08-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410192505.2A Pending CN103961781A (en) | 2014-05-08 | 2014-05-08 | Air embolism resistant type central venous catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103961781A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0351206A1 (en) * | 1988-07-12 | 1990-01-17 | Cook Incorporated | A central venous catheter |
| US5425709A (en) * | 1993-07-22 | 1995-06-20 | C. R. Bard, Inc. | Sheath for a balloon catheter |
| CN2728521Y (en) * | 2004-09-27 | 2005-09-28 | 陈永曦 | Vein type retaining needle |
| CN101015721A (en) * | 2006-02-12 | 2007-08-15 | 董中新 | Artery-vein catherter preventing blood outflow provided with blood sampling opening |
| CN201880126U (en) * | 2010-12-15 | 2011-06-29 | 广东康尔美医疗器械有限公司 | Venous retention needle |
| CN202960695U (en) * | 2012-12-28 | 2013-06-05 | 娄长芹 | Cardiovascular intervention therapeutic device |
| CN203898897U (en) * | 2014-05-08 | 2014-10-29 | 中国人民解放军第三军医大学第一附属医院 | Air embolism prevention type central venous catheter |
-
2014
- 2014-05-08 CN CN201410192505.2A patent/CN103961781A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0351206A1 (en) * | 1988-07-12 | 1990-01-17 | Cook Incorporated | A central venous catheter |
| US5425709A (en) * | 1993-07-22 | 1995-06-20 | C. R. Bard, Inc. | Sheath for a balloon catheter |
| CN2728521Y (en) * | 2004-09-27 | 2005-09-28 | 陈永曦 | Vein type retaining needle |
| CN101015721A (en) * | 2006-02-12 | 2007-08-15 | 董中新 | Artery-vein catherter preventing blood outflow provided with blood sampling opening |
| CN201880126U (en) * | 2010-12-15 | 2011-06-29 | 广东康尔美医疗器械有限公司 | Venous retention needle |
| CN202960695U (en) * | 2012-12-28 | 2013-06-05 | 娄长芹 | Cardiovascular intervention therapeutic device |
| CN203898897U (en) * | 2014-05-08 | 2014-10-29 | 中国人民解放军第三军医大学第一附属医院 | Air embolism prevention type central venous catheter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140806 |