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Medical devices and delivery systems for delivering medical devices

  • US 10,531,952 B2
  • Filed: 01/23/2018
  • Issued: 01/14/2020
  • Est. Priority Date: 11/05/2004
  • Status: Active Grant
First Claim
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1. A medical delivery system, comprising:

  • an outer sheath having a lumen extending therethrough;

    a delivery catheter having a proximal end and a distal end, the delivery catheter disposed within the outer sheath lumen;

    a sheathing assist element having a proximal end and a distal end, wherein the proximal end of the sheathing assist element is coupled to the distal end of the delivery catheter;

    wherein the sheathing assist element is positionable within the outer sheath;

    wherein the sheathing assist element has a first configuration and a second configuration; and

    wherein the sheathing assist element is tapered from the distal end of the sheathing assist element to the proximal end of the sheathing assist element when in the second configuration, the sheathing assist element at its distal end having a transverse extent greater than that of the outer sheath;

    wherein the sheathing assist element includes a plurality of arms each forming a looped structure,wherein the plurality of arms includes a first set of arms and a second set of arms different from the first set of arms.

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