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Self expanding cardiovascular occlusion device, method of using and method of making the same

  • US 5,733,294 A
  • Filed: 02/28/1996
  • Issued: 03/31/1998
  • Est. Priority Date: 02/28/1996
  • Status: Expired due to Term
First Claim
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1. A cardiovascular occlusion device, comprising:

  • (a) three bands linearly spliced a predetermined distance from each other and defining a first end and a second end, said bands located at said first and second ends being end bands, said band disposed between said end bands being a middle band; and

    (b) a plurality of wires disposed around said bands and attached to said bands so that each wire contacts all of said bands, terminates at said end bands, and forms wire segments between said bands,(c) wherein the device has the following states;

    (i) a relaxed state wherein said wire segments are longer than said distance between said bands so that said wires form a set of loops between any two adjacent bands, wherein said set of loops has a first outer dimension, and wherein said set of loops forms two conical shapes, each of said conical shapes having an apex at said middle band and an invaginated base attached to one of said end bands; and

    (ii) a stretched state wherein the device has a tubular configuration having a second outer dimension which is less than said first outer dimension; and

    (d) wherein said wires have memory whereby the device returns from said stretched state to said relaxed state.

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