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Implant delivery capsule

  • US 10,350,067 B2
  • Filed: 10/21/2016
  • Issued: 07/16/2019
  • Est. Priority Date: 10/26/2015
  • Status: Active Grant
First Claim
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1. A delivery system for delivering a stent mounted heart valve into a patient vessel, the delivery system comprising:

  • an expandable sheath;

    an elongate catheter having proximal and distal ends, a stent mounted heart valve attached at the distal end of the elongate catheter;

    a capsule coupled to the distal end of the elongate catheter, the capsule sized and configured to extend around and enclose the stent mounted heart valve, the capsule having a distal end defining a capsule diameter;

    a nosecone including a tapered distal end and a proximal end, the proximal end engaged to the distal end of the capsule, wherein the tapered distal end has a smooth continuous shape configured to progressively urge the sheath outward and the proximal end defines a nosecone maximum diameter greater than the capsule diameter, andwherein the expandable sheath has a central lumen sized and configured to receive the elongate catheter, capsule and nosecone, wherein the central lumen defines a starting inner diameter less than the capsule diameter, andwherein the nosecone reduces an average peak push force resulting from advancement of the capsule through the expandable sheath.

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