CN205234701U - Artificial medical blood vessel - Google Patents
Artificial medical blood vessel Download PDFInfo
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- CN205234701U CN205234701U CN201520984846.3U CN201520984846U CN205234701U CN 205234701 U CN205234701 U CN 205234701U CN 201520984846 U CN201520984846 U CN 201520984846U CN 205234701 U CN205234701 U CN 205234701U
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- blood vessel
- medical blood
- artificial medical
- support ring
- artificial
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Abstract
The utility model discloses an artificial medical blood vessel, this artificial medical blood vessel is for having elastic hose that link up, and one end is convergent shape final phase of a project, and the pipe diameter reduces gradually promptly. This artificial medical blood vessel's diameter range is 3-6mm. This artificial medical blood vessel's outside is equipped with the support ring, and this support ring is located artificial medical blood vessel's middle section, and the cover is put on artificial medical blood vessel's outer wall and is fixed, and this support ring is the fluorinated ethylene propylene (FEP) ring. This artificial medical blood vessel is the expanded polytetrafluoroethylene pipe, and the surface has the microcellular structure, and micropore aperture scope is 17-25 mu m, makes histocyte grow into. Adoption teflon resin is the raw materials, through preforming, bulldoze, dry, tensile, finalize the design and add process such as outer support ring and make. The utility model provides an artificial medical blood vessel has good biocompatibility, can solve that the internal fistula is inaccessible, the poor problem of self vascular condition, improves dialysis patient's dialysis quality.
Description
Technical field
The utility model relates to a kind of medicine equipment, particularly, relates to a kind of artificial medical blood vessel for haemodialysis.
Background technology
In the time there is functional exhaustion in the kidney of human body, need to be by the blood drainage in body to external, through dialysis apparatus, carry out mass exchange, remove the metabolic waste in body, reach electrolyte and acid-base balance, remove too much moisture in body simultaneously, and by the defeated ex vivo of blood of evolving.
But the needs of patients of hemodialysis is frequently treated to hospital, common one week 3 times, blood vessel does not stop to accept puncture; Some patient's native blood vessel conditions are poor, and nurse's technology is poor, fixed point puncture, and the poor factors that waits of suturing skill, causes Fistuk stenosis, and obturation, need to set up vascular access in addition.
Utility model content
The purpose of this utility model is to provide a kind of expanded PTFE artificial blood vessel with good biocompatibility for haemodialysis, solves internal fistula obturation, the poor problem of native blood vessel condition, improves the dialysis quality of dialysis patient.
In order to achieve the above object, the utility model provides a kind of artificial medical blood vessel, wherein, this artificial medical blood vessel is for having flexible perforation flexible pipe, and one end is tapered ending, be that caliber reduces gradually, adopt progressive mode of dwindling, convenient doctor clinically in use, carries out cutting according to patient's concrete condition (the difference size of native blood vessel), sew up corresponding with patient's native blood vessel, can realize end-to-side anastomosis. This blood vessel has good elasticity and pliability, has good compliance and can prevent knotting behavior.
Above-mentioned artificial medical blood vessel, wherein, the diameter range of described artificial medical blood vessel is 3 ~ 6mm.
Above-mentioned artificial medical blood vessel, wherein, the outside of described artificial medical blood vessel is provided with support ring, when ensureing blood vessel by joint, can be because of the bending appearance of limbs " flattening ".
Above-mentioned artificial medical blood vessel, wherein, described support ring is positioned at the stage casing of described artificial medical blood vessel, is nested with on the outer wall of artificial medical blood vessel and fixes, and ensures that artificial medical blood vessel is because external force is former thereby distortion.
Above-mentioned artificial medical blood vessel, wherein, described support ring is fluorinated ethylene propylene (FEP) annulus, adopts fluorinated ethylene propylene (FEP) (Fluorinatedethylenepropylene, FEP) to make.
Above-mentioned artificial medical blood vessel, wherein, described artificial medical blood vessel is expanded polytetrafluoroethyltube tube, employing polyflon is raw material, passes through preformed, pushing, is dried, stretches, shapes and add the processes such as outer support ring and make.
Above-mentioned artificial medical blood vessel, wherein, the surface of described artificial medical blood vessel has microcellular structure, a large amount of " joint and the fiber " structure having, transmitting tissue's cell is grown into, and embodies good biocompatibility.
Above-mentioned artificial medical blood vessel, wherein, described micropore size scope is 17 ~ 25 μ m, is preferably 17 μ m, histocyte can be grown into.
The artificial medical blood vessel that the utility model provides has the following advantages:
This artificial medical blood vessel is a kind of expanded PTFE artificial blood vessel with good biocompatibility for haemodialysis, and one end adopts gradual ending, facilitates doctor according to patient's native blood vessel situation, carries out cutting; Self has elasticity blood vessel, can prevent knotting; At blood vessel middle part, be provided with outer support ring, when ensureing to be chosen in by joint part, can not be out of shape because of bending appearance of limbs. Can solve internal fistula obturation, the poor problem of native blood vessel condition, improve the dialysis quality of dialysis patient.
Brief description of the drawings
Fig. 1 is the tapered ending schematic diagram of artificial medical blood vessel of the present utility model.
Fig. 2 is the support ring schematic diagram of artificial medical blood vessel of the present utility model.
Fig. 3 is the application schematic diagram of artificial medical blood vessel of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is further described.
As shown in Figure 1, the artificial medical blood vessel that the utility model provides, it is for having flexible perforation flexible pipe, one end is tapered ending, and caliber reduces gradually, adopts progressive mode of dwindling, convenient doctor clinically in use, carry out cutting according to patient's concrete condition (the difference size of native blood vessel), sew up corresponding with patient's native blood vessel, can realize end-to-side anastomosis.
This blood vessel has good elasticity and pliability, has good compliance and can prevent knotting behavior.
The diameter range of this artificial medical blood vessel is 3 ~ 6mm.
As shown in Figure 2, the outside of this artificial medical blood vessel is provided with support ring 1, when ensureing blood vessel by joint, and can be because of the bending appearance of limbs " flattening ".
This support ring 1 is positioned at the stage casing of artificial medical blood vessel, is nested with on the outer wall of artificial medical blood vessel and fixes, and ensures that artificial medical blood vessel is because external force is former thereby distortion. Shown in Figure 3.
This support ring 1 is fluorinated ethylene propylene (FEP) annulus, adopts fluorinated ethylene propylene (FEP) (Fluorinatedethylenepropylene, FEP) to make.
This artificial medical blood vessel is expanded polytetrafluoroethyltube tube, and employing polyflon is raw material, passes through preformed, pushing, is dried, stretches, shapes and add the processes such as outer support ring 1 and make.
The surface of artificial medical blood vessel has microcellular structure, a large amount of " joint and the fiber " structure having, and transmitting tissue's cell is grown into, and embodies good biocompatibility. Micropore size scope is 17 ~ 25 μ m, is preferably 17 μ m, and histocyte can be grown into.
The artificial medical blood vessel that the utility model provides, its concrete steps of preparing are as follows:
Step 1, mixes with extrusion aid raw material polytetrafluoroethylgranule granule according to the ratio of 10:1 ~ 20:1, through pushing preformed, be cylinder, pushes out polytetrafluoroethylene (PTFE) base tube;
Step 2, at high temperature, removes extrusion aid;
Step 3 stretches polytetrafluoroethylene (PTFE) base tube at 300 ~ 400 DEG C through row, draw ratio is 5 ~ 10 times, obtains expanded polytetrafluoroethyltube tube.
Step 4, additional support ring 1, sizing.
The artificial medical blood vessel that the utility model provides, employing polyflon is raw material, pass through preformed, pushing, be dried, stretch, shape and add the processes such as outer support ring 1 and make, there is good biocompatibility, can solve internal fistula obturation, the poor problem of native blood vessel condition, improve the dialysis quality of dialysis patient.
Although content of the present utility model has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model. Read after foregoing those skilled in the art, for multiple amendment of the present utility model and substitute will be all apparent. Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (8)
1. an artificial medical blood vessel, is characterized in that, this artificial medical blood vessel is for having flexible perforation flexible pipe, and one end is tapered ending.
2. artificial medical blood vessel as claimed in claim 1, is characterized in that, the diameter range of described artificial medical blood vessel is 3 ~ 6mm.
3. artificial medical blood vessel as claimed in claim 2, is characterized in that, the outside of described artificial medical blood vessel is provided with support ring (1).
4. artificial medical blood vessel as claimed in claim 3, is characterized in that, described support ring (1) is positioned at the stage casing of described artificial medical blood vessel.
5. artificial medical blood vessel as claimed in claim 4, is characterized in that, described support ring (1) is fluorinated ethylene propylene (FEP) annulus.
6. artificial medical blood vessel as claimed in claim 4, is characterized in that, described artificial medical blood vessel is expanded polytetrafluoroethyltube tube.
7. artificial medical blood vessel as claimed in claim 5, is characterized in that, the surface of described artificial medical blood vessel has microcellular structure.
8. artificial medical blood vessel as claimed in claim 7, is characterized in that, described micropore size scope is 17 ~ 25 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520984846.3U CN205234701U (en) | 2015-12-02 | 2015-12-02 | Artificial medical blood vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520984846.3U CN205234701U (en) | 2015-12-02 | 2015-12-02 | Artificial medical blood vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205234701U true CN205234701U (en) | 2016-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520984846.3U Active CN205234701U (en) | 2015-12-02 | 2015-12-02 | Artificial medical blood vessel |
Country Status (1)
| Country | Link |
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| CN (1) | CN205234701U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110859998A (en) * | 2019-12-18 | 2020-03-06 | 上海畅迪医疗科技有限公司 | Anti-kink artificial blood vessel and preparation method thereof |
| CN116549171A (en) * | 2023-07-12 | 2023-08-08 | 苏州美创医疗科技有限公司 | Artificial blood vessel |
-
2015
- 2015-12-02 CN CN201520984846.3U patent/CN205234701U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110859998A (en) * | 2019-12-18 | 2020-03-06 | 上海畅迪医疗科技有限公司 | Anti-kink artificial blood vessel and preparation method thereof |
| CN116549171A (en) * | 2023-07-12 | 2023-08-08 | 苏州美创医疗科技有限公司 | Artificial blood vessel |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |