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METHOD OF LOADING AND DELIVERING A SELF-EXPANDING STENT

  • US 20160022456A1
  • Filed: 07/22/2015
  • Published: 01/28/2016
  • Est. Priority Date: 07/25/2014
  • Status: Active Grant
First Claim
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1. A method for loading and delivering a self-expanding stent, comprising:

  • compressing said stent in a stent crimper from an expanded diameter to a compressed diameter being smaller than the expanded diameter, said stent comprising a series of struts interconnected by proximal bends and distal bends;

    loading said stent into a restraining sheath by pushing on a proximal end of said stent when said stent is in said compressed diameter, said proximal bends being flared outward against an inner surface of said restraining sheath in response to said pushing and said distal bends remaining unflared, said proximal end of said stent being pushed until an entire outer surface of said stent contacts the inner surface of said restraining sheath and a distal end of said stent is proximate a distal end of said restraining sheath;

    attaching said restraining sheath being loaded with said stent to a delivery system, said delivery system comprising a stop disposed adjacent said proximal end of said stent and a handle adapted to withdraw said restraining sheath proximally relative to said stop; and

    delivering said stent by manipulating said handle to withdraw said restraining sheath, said stop pushing on said proximal end of said stent to restrain said stent longitudinally while said restraining sheath is withdrawn proximally from said stent, said stent pressing outward against said inner surface of said restraining sheath as said restraining sheath slides proximally along an exterior surface of said stent, wherein said unflared distal bends slide against said inner surface of said restraining sheath respectively ahead of said flared proximal bends.

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