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Releasably locking dilator and sheath assembly

  • US 20050049628A1
  • Filed: 09/24/2004
  • Published: 03/03/2005
  • Est. Priority Date: 08/29/2002
  • Status: Active Grant
First Claim
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1. A dilator and sheath assembly comprising:

  • a) a dilator having;

    1) an elongated dilator stem having a proximal dilator end; and

    2) a dilator hub fixedly connected to the proximal dilator end, wherein the dilator hub includes a threaded portion at a distal portion thereof;



    and b) a sheath having;

    1) an elongated tubular portion having a proximal sheath end, a distal sheath end, and a longitudinal axis extending between the proximal sheath end and the distal sheath end, wherein the tubular portion is sized to frictionally retain the dilator stem;

    2) at least one tear seam extending in a plane between the proximal sheath end and the distal sheath end; and

    3) a sheath hub fixedly connected to the proximal sheath end, wherein the sheath hub includes a proximal portion, a valve and a mating threaded portion at a proximal end thereof, wherein the threaded portion of the dilator hub and the mating threaded portion of the sheath hub provide a releasably locking engagement between the dilator and the sheath.

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