CN2590586Y - Large blood vessel dilator - Google Patents
Large blood vessel dilator Download PDFInfo
- Publication number
- CN2590586Y CN2590586Y CN 02250491 CN02250491U CN2590586Y CN 2590586 Y CN2590586 Y CN 2590586Y CN 02250491 CN02250491 CN 02250491 CN 02250491 U CN02250491 U CN 02250491U CN 2590586 Y CN2590586 Y CN 2590586Y
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- China
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- fiber
- trunk support
- described novel
- novel trunk
- expandable stent
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Abstract
The utility model relates to a large blood vessel stent, which comprises a fiber lining and a dilating stent. Because the large blood vessel stent of the utility model adopts a combined structure of the dilating stent and the fibre lining, the concentrated pressure to the vessel wall generated by a metal wire of the dilating stent is dispersed on the fibre lining which is sheathed on the outer side of the dilating stent Then the wound to the vessel wall caused by the metal wire of the dilating stent is effectively prevented. Meanwhile, a compact knitted texture of a film coating metal fiber of the fibre lining can effectively prevent the extravasation of blood. The utility model has the advantages of large strength, good flexibility, non ageing, and abrasion resistance and is favorable for the growth of vascular endothelial cells and smooth muscle cells.
Description
This utility model relates to a kind of endovascular stent, particularly the trunk inner support.
In the prior art, the medical stent that is used for the treatment of trunk aneurysm or arteriovenous fistula of existing various different structures, as the abdominal aortic aneurysm support, its structure is the medical stent that adheres to politef or other macromolecule material film formation band film on the basis of medical 316L rustless steel or medical niti-shaped memorial alloy support.Owing to the undercapacity of polytetrafluoroethylene film, aging or wearing and tearing, the polytetrafluoroethylene film perforation has appearred to this class support in long-term effect, has influenced long-term efficacy when clinical use.Be badly in need of clinically that a kind of intensity is big, compliance good, aging, wear-resistant, be convenient to the novel trunk inner support that vascular endothelial cell and smooth muscle cell growth cover.
The purpose of this utility model be to provide that a kind of intensity is big, compliance good, aging, wear-resistant, be convenient to the novel trunk inner support that vascular endothelial cell and smooth muscle cell growth cover, it can directly be implanted in operation or be implanted by the intervention method under X-ray monitors by the vascular surgery doctor.
The purpose of this utility model is achieved in that
Novel trunk support, comprise fiber liner (1) and expandable stent (2), it is characterized in that fiber liner (1) is with the metal material fiber or by the grid duct shape structure of densification metal material fibrage or woven of macromolecular material or biomaterial thin film or coating coating; Expandable stent (2) is with the metal material silk that can implant in human body grid duct shape structure braiding or woven or with the grid duct shape structure of light-wall pipe behind laser engraving of the metal material that can implant in human body; Expandable stent (2) is connected in the fiber liner (1).
---the fiber liner (1) of above-mentioned novel trunk support can be to be coated with the medicine that can promote blood vessel endotheliumization or the grid duct shape structure that contains the medicine coating of material (6) on the internal layer of fiber liner (1); Fiber liner (1) also can be to be coated with the medicine that can promote blood coagulation or the grid duct shape structure that contains the medicine coating of material (7) on the skin of fiber liner (1); Fiber liner (1) still can be to be coated with on the internal layer of fiber liner (1) to be coated with the medicine that can promote blood coagulation or the grid duct shape structure of material (7) on the skin of the medicine that can promote blood vessel endotheliumization or material (6), fiber liner (1).
---the metal material fiber (3) of the fiber liner (1) of above-mentioned novel trunk support is often referred to medical niti-shaped memorial alloy fiber or medical titanium or titanium alloy fiber or medical stainless steel fiber, or the fiber of other the aged materials of high strength anti that can implant in human body; The macromolecular material that can implant in human body of coating high-strength material fiber (3) or the thin film of biomaterial or coating (4) be polytetrafluoroethylene film or coating normally, also can be thin film or the coating that other macromolecular material or the biomaterial of good biocompatibility and blood compatibility are arranged in blood vessel.
---the fiber liner (1) of above-mentioned novel trunk support also can be with the grid duct shape structure of the ultra-thin plate of metal through forming behind the laser engraving or the laser engraving grid duct shape structure of the ultra-thin plate of metal that coats of the medical macromolecular materials that can be implanted in human body or biomaterial.
---the micropore of 5 μ m～500 μ m can be arranged on the fiber liner (1) of above-mentioned novel trunk support, also can be to go up kind of a grid duct shape structure that is implanted with the band active biomaterial (5) of the active biomaterial (5) that can promote that vascular endothelial cell and smooth muscle cell growth cover at fiber liner (1).
---the expandable stent (2) of above-mentioned novel trunk support also can be the metal wire knitted that coats of the macromolecular material that can implant in human body or biomaterial thin film or coating or woven grid duct shape structure, also can be to be coated with the medicine that can promote blood vessel endotheliumization or the grid duct shape structure that contains the medicine coating of material (6) on expandable stent (2).
---the expandable stent (2) of above-mentioned novel trunk support also can be the assembly of several expandable stents of merogenesis braiding.Merogenesis combination type expandable stent (2) can have better compliance.
---the fiber liner (1) and the expandable stent (2) of above-mentioned novel trunk support can be the grid duct shape structures that different weaving manners, braiding structure and weave pattern or laser engraving decorative pattern is arranged and the geometry that meets the physiological requirement of human vas shape is arranged.As the Y type support of bifurcated vessels, the reducing support that internal diameter changes, the geometries such as arc support that have certain radian, satisfy different clinical demands.
---the expandable stent (2) of above-mentioned novel trunk support is installed in the inside of fiber liner (1) usually, and expandable stent (2) also can be installed in the outside of fiber liner (1); Expandable stent (2) can also be the mixed weaving structure with fiber liner (1).
---the expandable stent (2) of above-mentioned novel trunk support can be with other nonmetallic materials manufacturing that can implant in human body.
Operation principle of the present utility model is:
Expandable stent (2) with this utility model is installed in the lumen of fiber liner (1) earlier, be installed in then in the special-purpose delivery device, by the intervention method system of broadcasting is being delivered to pathological changes portion target vessel under the operating direct-view or under the monitoring at X-ray, discharge the novel trunk support of this utility model, can lay and finish.
Because the novel trunk support of this utility model has adopted the fabricated structure of expandable stent (2) with fiber liner (1), the focus pressure that the tinsel of expandable stent (2) is produced blood vessel wall, be dispersed on the fiber liner (1) of the outside that is enclosed within expandable stent (2), prevented the wound of the tinsel of expandable stent (2) effectively to blood vessel wall, the fine and close braiding structure of the precoated metal fiber of fiber liner (1) can prevent exosmosing of blood effectively simultaneously, it is big to have intensity, compliance is good, not aging, wear-resistant, be convenient to the advantage that vascular endothelial cell and smooth muscle cell growth cover.
The basic structure and the operation principle of the novel trunk support of this utility model are provided by following embodiment and accompanying drawing.
The structural representation of the novel trunk support of Fig. 1 this utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
The structural representation of the precoated metal fiber of the fiber liner of the novel trunk support of Fig. 3 this utility model.
Plant the structural representation of the novel trunk support that is implanted with the active biomaterial that can promote that vascular endothelial cell and smooth muscle cell growth cover on the fiber liner of Fig. 4 this utility model.
The expandable stent of Fig. 5 this utility model is the structural representation of the novel trunk support of a few joint expandable stent assemblys.
The internal layer of the fiber liner of Fig. 6 this utility model is coated with and can promotes blood vessel endothelium chemical medicine beyond the region of objective existence layer to be coated with the structural representation of the novel trunk support of the medicine that can promote blood coagulation.
Among the above-mentioned figure, 1 is the fiber liner, 2 is expandable stent, 3 is the metal material fiber, 4 is macromolecule material film or the biomaterial thin film that can implant in human body, 5 for promoting the active biomaterial of vascular endothelial cell and smooth muscle cell growth covering, and 6 for promoting the medicine or the material of blood vessel endotheliumization, and 7 for promoting the medicine or the material of blood coagulation.
Buying diameter is 5 μ m～50 μ m, recovery temperature is 30 ℃ a niti-shaped memorial alloy fiber (3), coat formation band film memorial alloy fiber with politef (4), be woven into the fine and close netted tubular-shaped structures of porosity by braider or craft, promptly obtained fiber liner (1) at 10 μ m～50 μ m.Buying diameter is 350 μ m～500 μ m, and recovery temperature is 30 ℃ a niti-shaped memorial alloy silk, is woven into pipe type netted structure by braider or craft, behind the typing heat treatment, has promptly obtained expandable stent (2).Expandable stent (2) is installed in the fiber liner (1), has promptly obtained the novel trunk support of this utility model.
Claims (10)
1, novel trunk support, comprise fiber liner (1) and expandable stent (2), it is characterized in that fiber liner (1) is with the metal material fiber or by the grid duct shape structure of densification metal material fibrage or woven of macromolecular material or biomaterial thin film or coating coating; Expandable stent (2) is with the metal material silk that can implant in human body grid duct shape structure braiding or woven or with the grid duct shape structure of light-wall pipe behind laser engraving of the metal material that can implant in human body; Expandable stent (2) is connected in the fiber liner (1).
2, according to the described novel trunk support of claim 1, the fiber liner (1) that it is characterized in that described novel trunk support can be to be coated with the medicine that can promote blood vessel endotheliumization or the grid duct shape structure that contains the medicine coating of material (6) on the internal layer of fiber liner (1); Fiber liner (1) also can be to be coated with the medicine that can promote blood coagulation or the grid duct shape structure that contains the medicine coating of material (7) on the skin of fiber liner (1); Fiber liner (1) still can be to be coated with on the internal layer of fiber liner (1) to be coated with the medicine that can promote blood coagulation or the grid duct shape structure of material (7) on the skin of the medicine that can promote blood vessel endotheliumization or material (6), fiber liner (1).
3, according to the described novel trunk support of claim 1, the metal material fiber (3) that it is characterized in that the fiber liner (1) of described novel trunk support is often referred to medical niti-shaped memorial alloy fiber or medical titanium or titanium alloy fiber or medical stainless steel fiber, or the fiber of other the aged materials of high strength anti that can implant in human body; The macromolecular material that can implant in human body of coating high-strength material fiber (3) or the thin film of biomaterial or coating (4) be polytetrafluoroethylene film or coating normally, also can be thin film or the coating that other macromolecular material or the biomaterial of good biocompatibility and blood compatibility are arranged in blood vessel.
4, according to the described novel trunk support of claim 1, the fiber liner (1) that it is characterized in that described novel trunk support also can be with the grid duct shape structure of the ultra-thin plate of metal through forming behind the laser engraving or the laser engraving grid duct shape structure of the ultra-thin plate of metal that coated by the medical macromolecular materials that can be implanted in human body or biomaterial.
5, according to the described novel trunk support of claim 1, it is characterized in that can having on the fiber liner (1) of described novel trunk support the micropore of 5 μ m～500 μ m, also can be to go up kind of a grid duct shape structure that is implanted with the band active biomaterial (5) of the active biomaterial (5) that can promote that vascular endothelial cell and smooth muscle cell growth cover at fiber liner (1).
6, according to the described novel trunk support of claim 1, the expandable stent (2) that it is characterized in that described novel trunk support also can be the metal wire knitted that coats of the macromolecular material that can implant in human body or biomaterial thin film or coating or woven grid duct shape structure, also can be to be coated with the medicine that can promote blood vessel endotheliumization or the grid duct shape structure that contains the medicine coating of material (6) on expandable stent (2).
7, according to the described novel trunk support of claim 1, the expandable stent (2) that it is characterized in that described novel trunk support also can be the assembly of several expandable stents of merogenesis braiding.
8,, it is characterized in that the fiber liner (1) of described novel trunk support can be the grid duct shape structure that different weaving manners, braiding structure and weave pattern or laser engraving decorative pattern is arranged and the geometry that meets the physiological requirement of human vas shape is arranged with expandable stent (2) according to the described novel trunk support of claim 1.
9, according to the described novel trunk support of claim 1, it is characterized in that the expandable stent (2) of described novel trunk support is installed in the inside of fiber liner (1) usually, expandable stent (2) also can be installed in the outside of fiber liner (1); Expandable stent (2) can also be the mixed weaving structure with fiber liner (1).
10, according to the described novel trunk support of claim 1, the expandable stent (2) that it is characterized in that described novel trunk support can be with other nonmetallic materials manufacturing that can implant in human body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02250491 CN2590586Y (en) | 2002-12-20 | 2002-12-20 | Large blood vessel dilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02250491 CN2590586Y (en) | 2002-12-20 | 2002-12-20 | Large blood vessel dilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2590586Y true CN2590586Y (en) | 2003-12-10 |
Family
ID=33720703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02250491 Expired - Lifetime CN2590586Y (en) | 2002-12-20 | 2002-12-20 | Large blood vessel dilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2590586Y (en) |
-
2002
- 2002-12-20 CN CN 02250491 patent/CN2590586Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20060208 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |