CN201978220U - Hemodialysis catheter capable of preventing attachment of blood vessel wall - Google Patents
Hemodialysis catheter capable of preventing attachment of blood vessel wall Download PDFInfo
- Publication number
- CN201978220U CN201978220U CN2011200412179U CN201120041217U CN201978220U CN 201978220 U CN201978220 U CN 201978220U CN 2011200412179 U CN2011200412179 U CN 2011200412179U CN 201120041217 U CN201120041217 U CN 201120041217U CN 201978220 U CN201978220 U CN 201978220U
- Authority
- CN
- China
- Prior art keywords
- vessel wall
- blood vessel
- hemodialysis catheter
- blood
- side opening
- 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.)
- Expired - Fee Related
Links
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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
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
- A61M25/003—Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves
-
- 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
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/3621—Extra-corporeal blood circuits
- A61M1/3653—Interfaces between patient blood circulation and extra-corporal blood circuit
- A61M1/3659—Cannulae pertaining to extracorporeal circulation
- A61M1/3661—Cannulae pertaining to extracorporeal circulation for haemodialysis
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
- A61M25/007—Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
- A61M25/003—Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves
- A61M2025/0031—Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves characterized by lumina for withdrawing or delivering, i.e. used for extracorporeal circuit treatment
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Urology & Nephrology (AREA)
- Cardiology (AREA)
- External Artificial Organs (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The utility model relates to a hemodialysis catheter capable of preventing attachment of a blood vessel wall, which comprises a blood extraction cavity and a blood transfusion cavity. The hemodialysis catheter is characterized in that the tail end is provided with a concave smooth transitional section, and the transitional section is provided with ring-shaped bulges. The hemodialysis catheter has a simple structure and a reasonable design, and the blood vessel wall can be effectively prevented from being attached to side holes of the hemodialysis catheter to cause blockage.
Description
Technical field
This utility model relates to a kind of anti-glued blood vessel wall hemodialysis catheter.
Background technology
When hemodialysis, when the hemodialysis, must guarantee the blood drawing smoothly of hemodialysis catheter for two chambeies or three chamber hemodialysis catheters clinically, guarantee side opening unimpeded of conduit.But clinically, occurring side opening sometimes is attached on the blood vessel wall, if at this moment continue blood drawing, sucking will take place and blood vessel wall is close on the side opening in side opening to blood vessel wall, thereby side opening stops up, make blood not pass through side opening again, make the dialysis pipeline can not keep unimpeded normally, have a strong impact on the function of the dialysis pipeline of conduit.
The utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide a kind of and can overcome above-mentioned defective, guarantee that blood extracts out smoothly, avoid dialysis catheter to be attached to anti-glued blood vessel wall hemodialysis catheter on the blood vessel wall.
The technical scheme that its technical problem that solves this utility model adopts is: a kind of anti-glued blood vessel wall hemodialysis catheter, comprise blood drawing chamber and blood transfusion chamber, it is characterized in that: the dialysis catheter latter end is provided with the level and smooth changeover portion of indent, and changeover portion is provided with the annulus projection.
Described annulus projection and changeover portion are integral structure.
One side of described annulus projection is provided with side opening, and side opening is interspersed on the blood drawing chamber.
The external diameter of described annulus projection is consistent with the normal external diameter of dialysis catheter.
When routine operation is put pipe, owing to there is the external diameter of level and smooth changeover portion of indent and annulus projection big, under the guiding of flexible tip, guaranteed to put the smooth of pipe unlike the external diameter of dialysis catheter, can be owing to the opposed pipe of annulus projection hinders.And when hemodialysis, these annulus projections can stop blood vessel wall and side opening to come in contact, and, also can form annular blood access between the annulus of these annulus projections, so just prevented to be attached to the generation of stopping up side opening on the side opening, guaranteed normal hemodialysis because of the side opening sucking causes blood vessel wall.
The beneficial effect that this utility model had is: simple in structure, reasonable in design, thus can prevent effectively that blood vessel wall is attached on the side opening of hemodialysis catheter stops up.
Description of drawings
Fig. 1 is this utility model structural representation;
Fig. 2 is two cavities conduit pipe cutaway views;
Fig. 3 is the three cavities conduit pipe cutaway view;
Among the figure: 1, annulus projection; 2, changeover portion; 3, side opening; 4, dialysis catheter latter end; 5, flexible tip; 6, blood drawing chamber; 7, blood transfusion chamber;
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
As Fig. 1～shown in, a kind of anti-glued blood vessel wall hemodialysis catheter comprises blood drawing chamber 6 and blood transfusion chamber 7, dialysis catheter latter end 4 is the level and smooth changeover portion of indent 2, changeover portion 2 is provided with annulus projection 1.Described annulus projection 1 and changeover portion 2 are integral structure.One side of described annulus projection 1 is provided with side opening 3, and side opening 3 is interspersed on blood drawing chamber 6.The external diameter of described annulus projection 1 is consistent with the normal external diameter of dialysis catheter.
When routine operation is put pipe, owing to there is the external diameter of level and smooth changeover portion of indent 2 and annulus projection 1 big, under the guiding of flexible tip 5, guaranteed to put the smooth of pipe unlike the external diameter of dialysis catheter, can be owing to annulus projection 1 opposed pipe hinders.And when hemodialysis, these annulus projections 1 can stop blood vessel wall and side opening 3 to come in contact, and, also can form annular blood access between the annulus of these annulus projections 1, so just prevented to have guaranteed normal hemodialysis because of side opening 3 suckings cause blood vessel wall to be attached to the generation of stopping up side opening 3 on the side opening 3.
The number of annulus projection 1 is by the decision of side opening 3 numbers, between the adjacent side opening 3 an annulus projection 1 is arranged as long as guarantee.The follow-up thermoforming processing after by the conduit extrusion molding of these annulus projections 1 and level and smooth changeover portion 2 is embodied as integral structure.The design is applicable to two cavities conduit pipes and three cavities conduit pipe commonly used at present.Side opening 3 is interspersed on the blood drawing chamber 6 of two cavities conduit pipes or three cavities conduit pipe.
Claims (4)
1. an anti-glued blood vessel wall hemodialysis catheter comprises blood drawing chamber and blood transfusion chamber, and it is characterized in that: the dialysis catheter latter end is provided with the level and smooth changeover portion of indent, and changeover portion is provided with the annulus projection.
2. anti-glued blood vessel wall hemodialysis catheter according to claim 1 is characterized in that: described annulus projection and changeover portion are integral structure.
3. anti-glued blood vessel wall hemodialysis catheter according to claim 1 is characterized in that: a side of described annulus projection is provided with side opening, and side opening is interspersed on the blood drawing chamber.
4. anti-glued blood vessel wall hemodialysis catheter according to claim 1 and 2 is characterized in that: the external diameter of described annulus projection is consistent with the normal external diameter of dialysis catheter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200412179U CN201978220U (en) | 2011-02-18 | 2011-02-18 | Hemodialysis catheter capable of preventing attachment of blood vessel wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200412179U CN201978220U (en) | 2011-02-18 | 2011-02-18 | Hemodialysis catheter capable of preventing attachment of blood vessel wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201978220U true CN201978220U (en) | 2011-09-21 |
Family
ID=44605690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200412179U Expired - Fee Related CN201978220U (en) | 2011-02-18 | 2011-02-18 | Hemodialysis catheter capable of preventing attachment of blood vessel wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201978220U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102861373A (en) * | 2012-09-25 | 2013-01-09 | 厦门大学附属中山医院 | Central venous catheter with wall adherence preventing device for dialysis |
| CN107050619A (en) * | 2017-03-31 | 2017-08-18 | 中山市中健医疗设备有限公司 | A kind of peritoneal cavity drainage tube |
| CN108430560A (en) * | 2016-01-15 | 2018-08-21 | 泰尔茂株式会社 | The application method of percutaneous catheter, percutaneous catheter |
| JP2020525096A (en) * | 2017-06-27 | 2020-08-27 | ミシガン クリティカル ケア コンサルタンツ インクＭｉｃｈｉｇａｎ Ｃｒｉｔｉｃａｌ Ｃａｒｅ Ｃｏｎｓｕｌｔａｎｔｓ， Ｉｎｃ． | Extracorporeal circulation catheter |
-
2011
- 2011-02-18 CN CN2011200412179U patent/CN201978220U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102861373A (en) * | 2012-09-25 | 2013-01-09 | 厦门大学附属中山医院 | Central venous catheter with wall adherence preventing device for dialysis |
| CN108430560A (en) * | 2016-01-15 | 2018-08-21 | 泰尔茂株式会社 | The application method of percutaneous catheter, percutaneous catheter |
| US10894143B2 (en) | 2016-01-15 | 2021-01-19 | Terumo Kabushiki Kaisha | Percutaneous catheter and method of using percutaneous catheter |
| CN107050619A (en) * | 2017-03-31 | 2017-08-18 | 中山市中健医疗设备有限公司 | A kind of peritoneal cavity drainage tube |
| JP2020525096A (en) * | 2017-06-27 | 2020-08-27 | ミシガン クリティカル ケア コンサルタンツ インクＭｉｃｈｉｇａｎ Ｃｒｉｔｉｃａｌ Ｃａｒｅ Ｃｏｎｓｕｌｔａｎｔｓ， Ｉｎｃ． | Extracorporeal circulation catheter |
| JP7246328B2 (en) | 2017-06-27 | 2023-03-27 | ミシガン クリティカル ケア コンサルタンツ インク | catheter for extracorporeal circulation |
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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 |
Granted publication date: 20110921 Termination date: 20150218 |
|
| EXPY | Termination of patent right or utility model |