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Balloon expandable vena cava filter to prevent migration of lower extremity venous clots into the pulmonary circulation

  • US 4,793,348 A
  • Filed: 11/15/1986
  • Issued: 12/27/1988
  • Est. Priority Date: 11/15/1986
  • Status: Expired due to Term
First Claim
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1. A vena cava filter for preventing migration of lower extremity venous clots into pulmonary circulation, comprising:

  • a tubular body having a distal end, a proximal end and therebetween means for rendering the tubular body radially expandable into a plastically deformed shape, said means comprising a wall surface partitioned by a pattern of slots into a latticework;

    a head piece circumferentially affixed to the distal end of said tubular body; and

    a plurality of tines affixed about the proximal end of said tubular body.

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