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Stent delivery system

  • US 9,974,679 B2
  • Filed: 12/14/2015
  • Issued: 05/22/2018
  • Est. Priority Date: 11/17/2010
  • Status: Active Grant
First Claim
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1. A stent delivery system, comprising:

  • an inner member having a proximal end;

    a sleeve coupled to the inner member adjacent to the proximal end;

    a deployment sheath disposed about the inner member;

    a bumper member disposed between the inner member and the deployment sheath;

    wherein the bumper member comprises an intermediate tube disposed between the inner member and the deployment sheath;

    a gear rack assembly coupled to the deployment sheath;

    a handle coupled to the inner member and to the deployment sheath;

    wherein the handle includes an actuation member, the actuation member being coupled to the gear rack assembly so that actuation of the actuation member shifts the longitudinal position of the gear rack assembly and the deployment sheath; and

    an engagement mechanism located along an inner groove of the gear rack assembly and coupled thereto, the engagement mechanism being configured to engage the sleeve of the inner member so that proximal retraction of the gear rack assembly results in proximal retraction of the inner shaft.

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