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Temporary intravascular stent for use in retrohepatic IVC or hepatic vein injury

  • US 6,162,237 A
  • Filed: 04/19/1999
  • Issued: 12/19/2000
  • Est. Priority Date: 04/19/1999
  • Status: Active Grant
First Claim
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1. A removable and temporary intravascular stent for use in hepatic vessel injury, the stent comprising:

  • a guide shaft;

    a fixed collar fixed to said guide shaft, said fixed collar having a plurality of rib-receiving apertures formed therein;

    a movable shaft slidably positioned over a portion of said guide shaft;

    a movable collar fixed to said movable shaft, said movable collar having a plurality of rib-receiving apertures formed therein;

    an elastic sheath that is substantially impermeable to liquid, said sheath having a tubular configuration; and

    a skeletal cage composed of a plurality of individual ribs anchored within said rib-receiving apertures formed in said fixed collar and said movable collar, said ribs having a defined first configuration and being composed of a shape-memory material for substantially maintaining said defined first configuration, said ribs being sufficiently flexible to be flexed to a second configuration, said cage having a mid-portion, said elastic sheath being wrapped about said mid-portion, said cage having a first end fixed to said fixed collar and a second end fixed to said movable collar.

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