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Systems and methods for delivering stent grafts

  • US 10,278,851 B2
  • Filed: 10/03/2017
  • Issued: 05/07/2019
  • Est. Priority Date: 10/07/2016
  • Status: Active Grant
First Claim
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1. A catheter apparatus for delivering an implant, the catheter apparatus comprising:

  • an inner shaft having a proximal portion, a distal portion, and an implant holding region at the distal portion;

    an outer sheath disposed at least over the implant holding region of the inner shaft, the outer sheath being configured to be proximally retracted to expose an implant placed in the implant holding region to allow the implant to be deployed, and the retractable outer sheath having a proximal end and a distal end;

    at least one retractable latch coupled to the proximal end of the outer sheath and configured to resist retraction of the outer sheath;

    at least one cable coupled to the at least one retractable latch; and

    a handle body enclosing the proximal portion of the inner shaft and the proximal end of the outer shaft,wherein the latch mechanism is configured to be released upon tensioning of the at least one cable over a threshold force so that the proximal retraction of the at least one cable over the threshold force proximally retracts the at least one retractable latch and the outer sheath, andwherein the handle body comprises an inner track, wherein the at least one retractable latch is configured to releasably couple to the inner track of the handle body to resist proximal retraction, and wherein the tensioning of the at least one cable over the threshold force releases the at least one retractable latch from the inner track of the handle body.

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