×

Angioplasty device and method of making same

  • US 7,922,691 B2
  • Filed: 01/09/2008
  • Issued: 04/12/2011
  • Est. Priority Date: 02/01/2000
  • Status: Expired due to Fees
First Claim
Patent Images

1. An apparatus for insertion into a vessel-like structure, the apparatus comprising:

  • a catheter for insertion into the vessel-like structure, the catheter having a catheter wall and a lumen extending longitudinally therethrough;

    a moveable member disposed within the lumen;

    at least one helically twisted flexible strut fixedly connected to the catheter wall and to the moveable member; and

    a membrane operably connected to the at least one flexible strut to form a trap, wherein relative motion between the catheter wall and the moveable member actuates the trap between a helically twisted contracted position and a helically twisted expanded position, and further wherein the at least one strut forms a profile having a first portion and a second portion, wherein the first portion has a first radius of curvature and the second portion has a second radius of curvature, the first radius of curvature is larger than the second radius of curvature causing the first portion to contract first to form a cocoon.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×