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Evertable sheath devices, systems, and methods

  • US 10,213,329 B2
  • Filed: 08/09/2012
  • Issued: 02/26/2019
  • Est. Priority Date: 08/12/2011
  • Status: Active Grant
First Claim
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1. A medical device delivery system comprising:

  • an elongate member having proximal and distal ends;

    a medical device having proximal and distal ends; and

    an inverted sheath having a delivery profile and a deployment profile, a proximal end and a distal end;

    wherein the medical device is located about the distal end of the elongate member with the inverted sheath in the delivery profile disposed about the medical device,wherein when the inverted sheath is transitioned to the deployment profile, the medical device can be deployed without requiring further eversion of the inverted sheath,wherein the inverted sheath comprises an inner layer and an outer layer defining a chamber, andwherein pressurization of the chamber by introducing a fluid into the chamber causes the inverted sheath to evert and causes the transition from the delivery profile to the deployment profile wherein the inverted sheath has an expanded diameter and a shortened length in the deployment profile relative to the delivery profile.

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