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Loading device for a pulmonary implant

  • US 8,100,959 B2
  • Filed: 03/06/2008
  • Issued: 01/24/2012
  • Est. Priority Date: 03/09/2007
  • Status: Active Grant
First Claim
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1. A system for loading a flow restrictive, collapsible pulmonary implant into a delivery catheter, the system comprising:

  • a loading device;

    a delivery catheter; and

    a flow restrictive, collapsible pulmonary implant;

    the loading device comprising;

    an outer tubular structure with a distal end and a proximal end, the outer tubular structure comprising;

    a narrowing passage with an opening disposed at the proximal end of the outer tubular structure to accept the collapsible pulmonary implant, wherein the narrowing passage narrows in a proximal-to-distal direction;

    a catheter passage in communication with the narrowing passage and having an opening at the distal end of the outer tubular structure to accept a distal end of the delivery catheter; and

    at least one structure for stopping advancement of the distal end of the catheter through the catheter passage; and

    an inner tubular structure configured to be pushed into the proximal end of the outer tubular structure, the inner tubular structure comprising a carrier pin configured to hold the collapsible implant and advance the implant through the narrowing passage and into the distal end of the delivery catheter as the inner tubular structure slides into the outer tubular structure,wherein movement of the inner tubular structure into the proximal end of the outer tubular structure causes the implant mounted on the carrier pin to collapse as it moves through the narrowing passage and into the distal end of the catheter;

    the delivery catheter, having a diameter to allow it to pass into the catheter passage of the loading device via the opening at the distal end of the passage; and

    the flow restrictive, collapsible pulmonary implant, housed in an uncollapsed configuration within the inner tubular structure of the loading device and mounted on the carrier pin.

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