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Soft-tissue tubular prostheses with seamed transitions

A tubular and prosthetic technology, applied in the direction of prosthesis, human tubular structure devices, blood vessels, etc., can solve the problems of suture seam occupation, increased thrombosis latency, fracture, etc., and achieve the effect of improving leakage and preventing leakage

Inactive Publication Date: 2004-03-31
ATEX TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, when loaded into a delivery capsule or other similar catheter device, they are designed to fit endoluminal prostheses, and the sutured seams take up considerable space
[0012] Thus, the traditional continuous braided branch graft has the disadvantage of having a gap at the branch point between the prosthetic stem and its branch parts due to warp gaps and warp breaks and characterized by the same diameter of the branch parts
In addition, such sutured seams have a detrimental effect on the regularity of the graft surface, which may contact and abrade weak areas of the vessel and / or increase the latency of thrombosis

Method used

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  • Soft-tissue tubular prostheses with seamed transitions
  • Soft-tissue tubular prostheses with seamed transitions
  • Soft-tissue tubular prostheses with seamed transitions

Examples

Experimental program
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Embodiment Construction

[0053] Embodiments of the present invention include a braided implantable tubular prosthesis having a variable diameter and a tapered transition comprising a seam along the opening of the tapered transition or transition region. The seam of the present invention provides a substantially fluid-tight transition between the first tubular portion or region and the second tubular region. Seams may be placed at the edges where the tapered fabric of the prosthesis changes from one diameter to a different diameter and / or where the prosthesis splits at a point, such as a bifurcation. Margins are defined as the outer limits of the graft width and along the longitudinal axis since the graft is a flat fabric on the loom.

[0054] In an embodiment, the seams are sewn directly on the loom by sewing together the upper and lower portions of the tubular prosthesis. In other embodiments, the seams are joined after the weaving is complete.

[0055] Conventional braiding techniques can be incor...

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PUM

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Abstract

Single tubular woven or bifurcated prostheses are disclosed having varying diameters and tapered transitions. The prostheses comprise a seam along the tapered edges, thereby providing a substantially fluid-tight transition between sections or extents of the prostheses. The seam may be located at an edge where fabric of the prosthesis tapers from one diameter to a different diameter and / or a point where the prosthesis splits such as a bifurcation. The seamed crotch may be used for tapered and non-tapered bifurcated grafts. The seam may be woven directly on a weaving loom or joined together after weaving is completed.

Description

[0001] Cross References to Related Applications [0002] This application claims serial numbers 60 / 248,989 filed November 15, 2000, serial numbers 60 / 249,066 filed November 15, 2000, and serial number 60 filed December 12, 2000 / 254,949 of the U.S. Provisional Patent Application. technical field [0003] The present invention relates to tubular prostheses, and more particularly to tubular prostheses comprising different diameters and / or different branch sections and methods for their manufacture. The prosthesis of the invention is advantageously used in implantable lumen applications. Background technique [0004] The tubular fabric can be used as an implantable prosthesis in soft tissue to replace or repair damaged or diseased vessels or passages in the body. A comprehensive discussion of different types of fabric tubular prostheses is contained in US Patent No. 5,800,514, filed September 1, 1998, the disclosure of which is hereby incorporated by reference. [0005] Appl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/00A61F2/04A61F2/06
CPCA61F2/06A61F2002/067A61F2/04A61F2002/065Y10T428/24785Y10T428/1362Y10T428/19
Inventor 彼得·施米特
Owner ATEX TECH INC
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