Vessel prosthesis

• US 10,335,299 B2
• Filed: 09/16/2016
• Issued: 07/02/2019
• Est. Priority Date: 09/18/2015
• Status: Active Grant

• Current Assignee: Terumo Corporation
• Original Assignee: Terumo Corporation
• Inventors: Lam, Cang, Vong, Shirley, Tsai, Priscilla
• Primary Examiner(s): Schillinger, Ann
• Application Number:
  US15/268,379
• Publication Number:
  US 20170079812A1
• Time in Patent Office: 1,019 Days
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2240/001 Designing or manufacturing processes

Abstract

A vascular prosthesis is described, having blunted wire ends. The blunted wire ends can take on a variety of configurations including end caps, bent ends, curved ends, or eyelets. The novel ends provide a smooth surface to contact the blood vessel walls thereby reducing the risk of trauma during placement of the prosthesis.

Claims

1. A vascular prosthesis comprising:

a plurality of wires woven together to form a tubular shape with a plurality of loops on each end of the tubular shape;

said plurality of loops being arranged in an alternating pattern of longer loops and shorter loops;

each of said plurality of loops terminating with a cap having a cylindrical body and a rounded distal end;

said cap comprising a trimmed first wire end, a trimmed second wire end, and a metal tube positioned flush over and melted together with said trimmed first wire end and said trimmed second wire end.

2. The vascular prosthesis of claim 1, wherein said vascular prosthesis comprises an outer layer and an inner layer.

3. The vascular prosthesis of claim 1, wherein said first wire end and said second wire end are symmetrically bent towards each other and are welded together to form said blunted tip.

4. A vascular prosthesis comprising:

a plurality of wires woven together to form a tubular shape with a plurality of non-woven wire segments extending from each end of the tubular shape;

wherein each of said plurality of non-woven wire segments extending from an end of said tubular shape connect to another non-woven wire segment of said plurality of wires to form a first plurality of loops and a second plurality of loops that each have a shorter length than said first plurality of loops;

said first plurality of loops and said second plurality of loops being arranged in an alternating pattern;

each of said plurality of loops terminating with a cap having a cylindrical body and a rounded distal end;

said cap comprising a trimmed first wire tip, a trimmed second wire tip, and a metal tube positioned flush over and melted together with said first wire tip and said second wire tip.