Method of forming medical device; intravascular occlusion device

• US 6,579,303 B2
• Filed: 07/15/2002
• Issued: 06/17/2003
• Est. Priority Date: 07/08/1994
• Status: Expired due to Fees

• Current Assignee: AGA Medical Corporation (Abbott Laboratories Incorporated)
• Original Assignee: AGA Medical Corporation (Abbott Laboratories Incorporated)
• Inventors: Amplatz, Curtis
• Primary Examiner(s): Milano, Michael J.
• Assistant Examiner(s): HO, TAN-UYEN THI
• Application Number:
  US10/193,969
• Publication Number:
  US 20020198561A1
• Time in Patent Office: 337 Days
• Field of Search: 623/1.11, 623/1.23, 623/1.26, 623/1.5, 623/1.51, 623/1.53, 623/1.54, 623/901, 623/900, 623/902, 623/903, 623/904, 606/200, 606/113, 606/114, 606/151, 606/158
• US Class Current: 606/200
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• CPC Class Codes: A61B 17/12022 Occluding by internal devices, e.g. balloons or releasable wires plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20
• CPC Class Codes: A61B 17/12109 in a blood vessel
• CPC Class Codes: A61B 17/12122 within the heart for closing a cardiac septal defect A61B17/0057
• CPC Class Codes: A61B 17/1215 comprising additional materials, e.g. thrombogenic, having filaments, having fibers, being coated
• CPC Class Codes: A61B 17/12172 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 17/12177 comprising additional materials, e.g. thrombogenic, having filaments, having fibers or being coated
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/00575 for closure at remote site, e.g. closing atrial septum defects
• CPC Class Codes: A61B 2017/00592 Elastic or resilient implements
• CPC Class Codes: A61B 2017/00606 Implements H-shaped in cross-section, i.e. with occluders on both sides of the opening
• CPC Class Codes: A61B 2017/00615 Implements with an occluder on one side of the opening and holding means therefor on the other
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61F 2/0108 Both ends closed, i.e. legs gathered at both ends
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2002/018 made from tubes or sheets of material, e.g. by etching or laser-cutting
• CPC Class Codes: A61F 2002/30092 using shape memory or superelastic materials, e.g. nitinol
• CPC Class Codes: A61F 2210/0019 operated at only one temperature whilst inside or touching the human body, e.g. constrained in a non-operative shape during surgery, another temperature only occurring before the operation
• CPC Class Codes: A61F 2230/0006 circular
• CPC Class Codes: A61F 2230/0065 : toroidal, e.g. ring-shaped, doughnut-shaped
• CPC Class Codes: A61F 2230/0067 : conical
• CPC Class Codes: A61F 2230/0078 : hyperboloidal
• CPC Class Codes: A61F 2230/008 : paraboloidal
• CPC Class Codes: A61F 2240/001 : Designing or manufacturing processes
• CPC Class Codes: B21F 45/00 : Wire-working in the manufacture of other particular articles of pins, needles, nails, hairpins B21G; of chains B21L ; for semiconductor devices H01L24/42
• CPC Class Codes: B21F 45/008 : of medical instruments, e.g. stents, corneal rings medical science A61
• CPC Class Codes: D04C 1/06 : Braid or lace serving particular purposes
• CPC Class Codes: D10B 2509/06 : Vascular grafts; stents
• CPC Class Codes: Y10S 623/901 : Method of manufacturing prosthetic device

Abstract

A method of treating a physiologic condition by providing a metal fabric formed of a plurality strands, wherein the strands have been heat-treated to set a desired shaped, the medical device then being further heat-treated in a mold having a shape of a desired medical device to set the shape the fabric in a deformed state to the shape of the desired medical device that can be collapsed for passage through a catheter for deployment in a patient'"'"'s body.

Claims

1. A method of treating a physiologic condition comprising the steps of:

(a) providing a metal fabric formed of a plurality of metal strands, the strands having been heat-treated to set a desired shape, the fabric then being further heat-treated in a mold having a shape of a desired medical device to set the shape of the fabric in a deformed state to the shape of the desired medical device that can be collapsed for passage through a catheter for deployment in a patient'"'"'s body;

(b) passing a catheter through a tubular organ in the patient'"'"'s body until a distal end of the catheter is adjacent a desired treatment site;

(c) collapsing the medical device and inserting the medical device into the catheter'"'"'s lumen, and

(d) urging the device along the lumen of the catheter and out of the distal end of the catheter for deployment at the treatment site.

2. The method as in claim 1 wherein the medical device is an occluder and the treatment site is an abnormal opening in an organ wall.

3. The method as in claim 1 wherein the medical device is a filter and the treatment site is a tubular vessel.