CN204468965U - A kind of internal fistula trocar protecting blood vessel - Google Patents
A kind of internal fistula trocar protecting blood vessel Download PDFInfo
- Publication number
- CN204468965U CN204468965U CN201520004461.6U CN201520004461U CN204468965U CN 204468965 U CN204468965 U CN 204468965U CN 201520004461 U CN201520004461 U CN 201520004461U CN 204468965 U CN204468965 U CN 204468965U
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- Prior art keywords
- needle
- internal fistula
- trocar
- internal
- fistula
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- 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
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Abstract
The utility model discloses a kind of internal fistula trocar can protecting blood vessel, comprising: internal fistula puncture needle syringe needle, puncture vessel uses; Internal fistula puncture needle needle handle, extracts syringe needle and uses; Soft trocar sheath, indwelling Ink vessel transfusing, carries out hemodialysis; Extension, connects the tube for transfusion in hemo system.This utility model is by the principle of application venous detaining needle, and the design internal fistula trocar, can reduce the damage of internal-fistula needle to blood vessel, extend the service life of internal arteriovenous fistula.
Description
Technical field
This utility model belongs to medical apparatus and instruments frontier, specifically a kind of internal fistula trocar that can reduce damage to blood vessel wall as far as possible, extend the internal fistula life-span.
Background technology
At present, domestic Maintenance Hemodialysis Patients has reached more than 130,000 people, and internal arteriovenous fistula is referred to as " life line " of maintenance hemodialysis, hemodialysis needs more than 2 times weekly, each continuing generally continues 4 hours, prolonged and repeated puncture internal fistula easily causes internal arteriovenous fistula complication, if hemangioma is exactly wherein one of common complication, and may thrombosis be caused, Fistuk stenosis is caused to block, but, current domestic puncture of internal arteriovenous fistula pin is metallic article, in blood dialysis of being expert at, internal fistula puncture needle need Ink vessel transfusing indwelling 4 hours, even more of a specified duration, add the damage of syringe needle to blood vessel wall undoubtedly, and metal needle hardness is higher, in blood dialysis, anxiety and sense of discomfort is brought to patient.
Summary of the invention
A kind of internal fistula trocar protecting blood vessel of this utility model design; its principle is similar to venous detaining needle; tightly be enclosed within outside internal-fistula needle by soft trocar sheath; after smooth puncture vessel; internal-fistula needle is extracted by needle handle; trocar sheath indwelling blood vessel carries out hemodialysis, its objective is to reduce the damage of internal fistula puncture needle to blood vessel wall, makes patient after internal fistula puncture without strong foreign body sensation simultaneously.
Technical solution
A kind of technical solution of the internal fistula trocar of blood vessel of protecting of this utility model is: this internal fistula trocar is by internal fistula puncture needle syringe needle head 1, overcoat conduit 2, plastics needle handle 3, rubber closure 6, extension 4, and Y type protective cap 5 forms, by internal fistula puncture needle syringe needle 1 puncture vessel smoothly, soft overcoat conduit 2 penetrates Ink vessel transfusing together simultaneously, then internal fistula puncture needle syringe needle 1 is extracted by needle handle 3, indwelling trocar sheath carries out hemodialysis in Ink vessel transfusing, rubber closure 6 central needle hole lobe is piston inwardly, after can ensureing that needle handle is extracted, seal in trocar sheath, be connected with tube for transfusion by Y type protective cap 5, Y type protective cap can prevent blood back flow, also can be used for the air getting rid of extension internal fistula simultaneously.
As mentioned above, trocar sheath and syringe needle intravasation simultaneously be made, need trocar sheath to be connected tight with nook closing member.Trocar sheath needs enough soft, but has certain toughness, just can protect blood vessel, also can drain body inner blood smoothly, subtract the anxiety in Patients Undergoing Hemodialysis therapeutic process and sense of discomfort simultaneously.
Accompanying drawing explanation
Fig. 1 is a kind of schematic front view protecting the internal fistula trocar of blood vessel of this utility model,
Fig. 2 is that a kind of nook closing member of the internal fistula trocar of blood vessel of protecting of this utility model extracts schematic front view.
Number in the figure illustrates: 1 internal fistula puncture needle syringe needle head, 2 overcoat conduits, 3 plastics needle handles, 6 rubber closures, 4 extensions, 5 Y type protective caps.
Detailed description of the invention
A kind of specific embodiment protecting the internal fistula trocar of blood vessel of this utility model
Fig. 1: internal fistula puncture needle syringe needle 1 penetrates blood vessel together with overcoat conduit 1; by plastics needle handle 3, internal fistula puncture needle syringe needle 1 is extracted; rubber closure 6 central needle hole lobe is piston inwardly; after can ensureing that needle handle is extracted; seal in trocar sheath; be connected with tube for transfusion by Y type protective cap 5, in blood dialysis, indwelling overcoat conduit 2 is in Ink vessel transfusing.
Claims (3)
1. the internal fistula trocar for the protection of blood vessel; comprise internal fistula puncture needle syringe needle head (1), overcoat conduit (2), plastics needle handle (3), rubber closure (6), extension (4) and Y type protective cap (5); it is characterized in that: internal fistula puncture needle syringe needle (1) is closely connected with overcoat conduit (2); can puncture together; intravasation; after extracting plastics pin disease (3); metal needle can be extracted together; overcoat conduit (2) continues to stay Ink vessel transfusing; rubber closure (6) is unidirectional lobe, and blood can be stoped to flow out.
2. the internal fistula trocar according to claim 1, described trocar sheath (2) material is plastics, has some toughness, not easily gives a discount at Ink vessel transfusing, causes thrombosis.
3. the internal fistula trocar according to claim 1, described protective cap (5) is " Y " type, is two outlet, is convenient to air-out or prevents blood back flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520004461.6U CN204468965U (en) | 2015-01-06 | 2015-01-06 | A kind of internal fistula trocar protecting blood vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520004461.6U CN204468965U (en) | 2015-01-06 | 2015-01-06 | A kind of internal fistula trocar protecting blood vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204468965U true CN204468965U (en) | 2015-07-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520004461.6U Expired - Fee Related CN204468965U (en) | 2015-01-06 | 2015-01-06 | A kind of internal fistula trocar protecting blood vessel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204468965U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108543131A (en) * | 2018-05-18 | 2018-09-18 | 侯颖萍 | Haemodialysis indwelling buttonhole needle |
-
2015
- 2015-01-06 CN CN201520004461.6U patent/CN204468965U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108543131A (en) * | 2018-05-18 | 2018-09-18 | 侯颖萍 | Haemodialysis indwelling buttonhole needle |
| CN108543131B (en) * | 2018-05-18 | 2024-03-01 | 侯颖萍 | Hemodialysis detaining buttonhole needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151008 Address after: 330006 No. 17, Wai Wai Street, Nanchang, Jiangxi Patentee after: First Affiliated Hospital Of Nanchang University Address before: 330006 No. 17, Wai Wai Street, Nanchang, Jiangxi (the First Affiliated Hospital of Nanchang University) Patentee before: Su Xiaoxia Patentee before: Yan Yan Patentee before: Li Min Patentee before: Chen Qinkai Patentee before: Yang Liu Patentee before: Cheng Jing Patentee before: Zhan Dandan |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20160106 |