CN1229347A - Flexible and expansible internal vascular prosthesis for surgical use - Google Patents
Flexible and expansible internal vascular prosthesis for surgical use Download PDFInfo
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- CN1229347A CN1229347A CN97197661A CN97197661A CN1229347A CN 1229347 A CN1229347 A CN 1229347A CN 97197661 A CN97197661 A CN 97197661A CN 97197661 A CN97197661 A CN 97197661A CN 1229347 A CN1229347 A CN 1229347A
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- China
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- sleeve pipe
- blood vessel
- vessel sleeve
- assembly
- internal blood
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Abstract
The invention concerns the local dilation of physiological ducts such as veins and arteries to reduce blood circulation disorders and in particular risks of infarct caused by the occlusion of a vessel, for example of the myocardium. The prosthesis comprises a sheath consisting of cylindrical modules formed by an assembly of bars defining peripheral meanders and comprising sinuous longitudinal rectilinear elements capable of being lengthened or shortened, the bars being made integral such that a module consists of closed patterns each comprising four rectilinear elements. Said prosthesis is known per se and has been in use for several years. There exist several models, produced by different techniques.
Description
The present invention is used for the differentially expanding of physiological conduit, such as the circulatory disturbance that reduces vein and tremulous pulse, particularly reduces owing to for example myocardial vascular blocks the danger of the infarction that causes.
Such kposthesis itself has been known and has used for many years.The various various modes made from different technologies are arranged at present.
For example, the patent FR2728156 that the applicant submits to has described the surgery sleeve pipe that a kind of cylinder tube shape parts constitute, its wall constitutes the extendible grid or the grid of a metal, it can radial dilatation under intrinsic pressure effect and keeps the profile that so forms, this tubular member comprises towards the exteral integration suspension arrangement, make it can be under the effect of expansion pressure the penetration rate of blood inside pipe wall so that any migration of holdout device.
The device of being realized at present generally all has harder defective, maybe will extend at the sweep that pathological changes is positioned at the blood vessel that will treat under the situation of long length and just bring difficulty to use.Under latter event, generally need several extension sleeve pipes to be joined to one another, this makes operation bother unusually.
For attempting to address this problem, International Patent Application PCT/FR96/01590 of same inventor has mentioned a kind of extension sleeve pipe that is made of pipe, this sleeve pipe is made of the non-bending part of two expansible networks at least, they are interconnection by the flexible part that Z-shaped band forms, and its integral body can guarantee can be from telescopic end to end towards the radial expansion force of blood vessel.
However, sleeve pipe always also has hard parts, and Z-shaped band also can cause the part of projection in compressed part, if sleeve pipe is not enough carefully settled, this may cause the obstruction of blood vessel.
The objective of the invention is to overcome these defectives.In fact, it can realize being used to guarantee angiectatic expansible sleeve pipe, and this sleeve pipe does not comprise any hard part, so that can be suitable for the curved shape of the pipeline that it places.
Sleeve pipe according to the present invention is made of cylinder shape assembly, assembly is linked to be by band, band forms the tortuous lines of periphery and has the buckling linear parts that can elongate or shorten, band is connected, make assembly be made of closed cell, each closed cell comprises four linear parts.
In the accompanying drawing of non-limiting example of the present invention is shown:
Fig. 1 illustrates the expansible telescopic assembly under the expansion form,
Fig. 2 illustrates a closed cell in varing proportions,
Fig. 3 illustrates a part of assembly, and it shows the distortion of linear parts when casing buckling,
Fig. 4 and Fig. 5 are expansible telescopic two embodiment according to Fig. 1 assembly.
The device of Fig. 1 to 5 is made of the cylinder-shaped sleeve 1 of ring section, telescopic wall is by hollow out, to form grid, grid is made of extendible semi-hard material, be arranged such that described sleeve pipe energy circumferentially extending under the effect of an internal pressure, and keeping the shape that so obtains, this internal pressure is for example produced by the aerating gasbag that the foundation known technology is installed in catheter tip.
Sleeve pipe 1 comprises one or more same components 2, they each constitute by the substantially invariable band of two annular sleeve peripheries and cross section, band is by the tortuous lines of longitudinal component 3 formation rules, parts 3 link to each other by staggered circular arc portion 4, and each bending is being parallel to size on sleeve pipe 1 axis direction than the big three-to-four-fold of the spacing distance between two longitudinal components.
Band is not collinear, has inserted a deformable curved portion 5 between two straight line portioies 6,7, and each straight line portion connects a circular arc portion 4.
This device allows assembly 2 not only radially can stretch, and especially can be bent, with the sweep (Fig. 3) of applying physiology conduit.In addition, when the cover enlargement of pipe, can reduce the change of casing length.
Sleeve pipe 1 is made of some assemblies 2, is with 11 to connect by one or more billet bands 10 or by reaching the rectangular of assembly 2/3rds length between them, and as required, band is arranged to quincunx with adjoining or staggers (Fig. 4) mutually on periphery.
Sleeve pipe 1 preferably by the thin metallic tubd of rustless steel or tantalum by in aggregates of engraving or Laser Processing, or form by a nugget genus laser galvanic corrosion.It can manufacture expansible form, and " extruding " is on aerating gasbag, so that be installed in the end of catheter then.
Form zigzag band and preferably have width and equal 0.12 millimeter, the about 0.1 millimeter square-section of thickness substantially, the length of assembly 2 is in 4 millimeter.
For avoiding blood vessel endothelium to penetrate into the inside of expansible sleeve pipe 1 by the grid that constitutes expansible casing wall, expansible sleeve pipe preferably covers for example composite mantle of Polyurethane, silicone or polyester of one deck.
Be the operation of conveniently laying and taking out, sleeve pipe 1 can be included in the labelling of visible X-ray opaque under the X ray, and it is made of the heavy metal coating, for example applies tantalum, titanium or gold by electrolysis.
The position of different component parts has provided maximum effect for the present invention, and similarly device can't obtain such effect at present.
Claims (12)
1. surgery is with expansible and crooked internal blood vessel sleeve pipe, it is made with extensible semi-hard material, but the shape that under the effect of internal pressure, can make its circumferentially extending and maintenance acquisition like this, be used for for example differentially expanding of the physiology conduit of vein and tremulous pulse, to reduce disturbance of blood circulation, particularly reduce because myocardial vascular blocks the danger of the infarction that causes, it is characterized in that, it comprises the assembly (2) of one or more identical cylindrical ring tee sections, each is formed by connecting by two cross section substantially constants and the band that forms peripheral tortuous lines, band links together, to form along the peripheral continuously arranged closed cell of sleeve pipe (1), each unit comprises four extending or shorten buckling parts (3), makes that assembly (2) can be crooked.
2. internal blood vessel sleeve pipe according to claim 1, it is characterized in that, buckling parts (3) are by two straight line portioies (6,7) having inserted a deformable curved portion (5) between constitutes, each straight line portion links to each other with the circular arc portion that is connected two longitudinal components (4), and described circular arc portion staggers.
3. internal blood vessel sleeve pipe according to claim 1 and 2 is characterized in that, assembly (2) is made of by the circular arc portion (4) that billet band (8) is connected in separately two adjacent indentation bands.
4. according to the described internal blood vessel sleeve pipe of one of aforementioned claim, it is characterized in that the band that forms tortuous lines has width and equals 0.12 millimeter, the about 0.1 millimeter square-section of thickness substantially, the length of assembly (2) is in 4 millimeter.
5. according to the described internal blood vessel sleeve pipe of one of aforementioned claim, it is characterized in that, it comprises a plurality of assemblies (2), links to each other by one or more short bands (10) that connect between the assembly, and band is arranged to quincunx between described assembly with adjoining or staggers mutually on periphery.
6. according to the described internal blood vessel sleeve pipe of one of claim 1 to 4, it is characterized in that, it comprises a plurality of assemblies (2), link to each other by one or more long bands (11) that connect between the assembly, band length can reach 2/3rds of length component, and band is arranged to quincunx between described assembly with adjoining or staggers mutually on periphery.
7. according to the described internal blood vessel sleeve pipe of one of aforementioned claim, it is characterized in that it is by in aggregates of thin metallic tubd engraving or Laser Processing.
8. according to the described internal blood vessel sleeve pipe of one of claim 1 to 6, it is characterized in that it is processed into a single piece by a nugget genus by the laser galvanic corrosion.
9. according to claim 7 or 8 described internal blood vessel sleeve pipes, it is characterized in that it is made by rustless steel or tantalum.
10. according to the described internal blood vessel sleeve pipe of one of aforementioned claim, it is characterized in that, cover for example composite mantle of Polyurethane, silicone or polyester of one deck on its wall, penetrate into telescopic inside by described wall to prevent conduit endothelium to be processed.
11. according to the described internal blood vessel sleeve pipe of one of aforementioned claim, it is characterized in that it is made with expansible form, " extruding " is on aerating gasbag, so that be installed in the end of catheter then.
12. according to the described internal blood vessel sleeve pipe of one of aforementioned claim, it is characterized in that it is included in the labelling of visible X-ray opaque under the X ray, labelling is made of the heavy metal coating that electrolysis applies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97197661A CN1229347A (en) | 1997-07-04 | 1997-07-04 | Flexible and expansible internal vascular prosthesis for surgical use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97197661A CN1229347A (en) | 1997-07-04 | 1997-07-04 | Flexible and expansible internal vascular prosthesis for surgical use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1229347A true CN1229347A (en) | 1999-09-22 |
Family
ID=5179779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97197661A Pending CN1229347A (en) | 1997-07-04 | 1997-07-04 | Flexible and expansible internal vascular prosthesis for surgical use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1229347A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8287495B2 (en) | 2009-07-30 | 2012-10-16 | Tandem Diabetes Care, Inc. | Infusion pump system with disposable cartridge having pressure venting and pressure feedback |
| US8408421B2 (en) | 2008-09-16 | 2013-04-02 | Tandem Diabetes Care, Inc. | Flow regulating stopcocks and related methods |
| US8650937B2 (en) | 2008-09-19 | 2014-02-18 | Tandem Diabetes Care, Inc. | Solute concentration measurement device and related methods |
| US8986253B2 (en) | 2008-01-25 | 2015-03-24 | Tandem Diabetes Care, Inc. | Two chamber pumps and related methods |
| CN104644296A (en) * | 2005-12-22 | 2015-05-27 | 西洛诺瓦斯坦股份有限公司 | Device comprising biodegradable bistable or multistable cells and methods of use |
| US9962486B2 (en) | 2013-03-14 | 2018-05-08 | Tandem Diabetes Care, Inc. | System and method for detecting occlusions in an infusion pump |
| US10258736B2 (en) | 2012-05-17 | 2019-04-16 | Tandem Diabetes Care, Inc. | Systems including vial adapter for fluid transfer |
-
1997
- 1997-07-04 CN CN97197661A patent/CN1229347A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104644296A (en) * | 2005-12-22 | 2015-05-27 | 西洛诺瓦斯坦股份有限公司 | Device comprising biodegradable bistable or multistable cells and methods of use |
| US8986253B2 (en) | 2008-01-25 | 2015-03-24 | Tandem Diabetes Care, Inc. | Two chamber pumps and related methods |
| US8408421B2 (en) | 2008-09-16 | 2013-04-02 | Tandem Diabetes Care, Inc. | Flow regulating stopcocks and related methods |
| US8448824B2 (en) | 2008-09-16 | 2013-05-28 | Tandem Diabetes Care, Inc. | Slideable flow metering devices and related methods |
| US8650937B2 (en) | 2008-09-19 | 2014-02-18 | Tandem Diabetes Care, Inc. | Solute concentration measurement device and related methods |
| US8926561B2 (en) | 2009-07-30 | 2015-01-06 | Tandem Diabetes Care, Inc. | Infusion pump system with disposable cartridge having pressure venting and pressure feedback |
| US8287495B2 (en) | 2009-07-30 | 2012-10-16 | Tandem Diabetes Care, Inc. | Infusion pump system with disposable cartridge having pressure venting and pressure feedback |
| US8758323B2 (en) | 2009-07-30 | 2014-06-24 | Tandem Diabetes Care, Inc. | Infusion pump system with disposable cartridge having pressure venting and pressure feedback |
| US8298184B2 (en) | 2009-07-30 | 2012-10-30 | Tandem Diabetes Care, Inc. | Infusion pump system with disposable cartridge having pressure venting and pressure feedback |
| US9211377B2 (en) | 2009-07-30 | 2015-12-15 | Tandem Diabetes Care, Inc. | Infusion pump system with disposable cartridge having pressure venting and pressure feedback |
| US11135362B2 (en) | 2009-07-30 | 2021-10-05 | Tandem Diabetes Care, Inc. | Infusion pump systems and methods |
| US11285263B2 (en) | 2009-07-30 | 2022-03-29 | Tandem Diabetes Care, Inc. | Infusion pump systems and methods |
| US10258736B2 (en) | 2012-05-17 | 2019-04-16 | Tandem Diabetes Care, Inc. | Systems including vial adapter for fluid transfer |
| US9962486B2 (en) | 2013-03-14 | 2018-05-08 | Tandem Diabetes Care, Inc. | System and method for detecting occlusions in an infusion pump |
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