Intravascular occlusion devices

• US 6,599,308 B2
• Filed: 02/01/2002
• Issued: 07/29/2003
• 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): Dawson, Glenn K.
• Application Number:
  US10/061,590
• Publication Number:
  US 20020123759A1
• Time in Patent Office: 543 Days
• Field of Search: 606/1, 606/108, 606/151, 606/190-213, 623/1.1, 623/1.11, 623/1.18, 623/1.2, 623/1.3, 623/1.53, 623/11.11
• 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

The present invention provides a method of forming a medical device and medical devices which can be formed in accordance with the method. In one embodiment, the method includes the steps of a) providing a metal fabric formed of a plurality of strands formed of a metal which can be heat treated to substantially set a desired shape; b) deforming the metal fabric to generally conform to a surface of a molding element; c) heat treating the metal fabric in contact with the surface of the molding element to substantially set the shape of the fabric in its deformed state; and d) removing the metal fabric from contact with the molding element. The resulting metal fabric will define a medical device which can be collapsed for passage through a catheter or the like for deployment in a channel of a patient'"'"'s body. Medical devices made in accordance with this method can have varying structures.

Claims

1. A medical device for deployment in a patient'"'"'s body, the device having a preset bell-shaped expanded configuration and a collapsed configuration enabling passage of the device through a catheter, said device comprising a plurality of strands having a first orientation with respect to one another and treated to conform in shape to said bell-shaped expanded configuration of the device, said plurality of strands each with a proximal end and a distal end wherein at least one of the proximal end and distal end of each of the strands is secured at a common end point.

2. The medical device as in claim 1 and further including a clamp attached to an end of said strands secured at the common end point.

3. The medical device of claim 2 wherein said clamp has a threaded bore adapted for rotationally receiving a delivery device.

4. The medical device of claim 1 and further including an occluding fiber contained within the bell-shaped expanded configuration.

5. The medical device as in claim 1 wherein the bell-shaped expanded configuration of the device comprises a dome with a radially extending flared base.