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Treatment of cavities in a human body

  • US 9,895,519 B2
  • Filed: 10/06/2014
  • Issued: 02/20/2018
  • Est. Priority Date: 10/07/2013
  • Status: Active Grant
First Claim
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1. A method for treating a cavity in a human body using a barrier device having a collapsed configuration and an expanded configuration, the method comprising:

  • deploying the barrier device from a delivery tube, using a pushing element slidably disposed within a lumen of the delivery tube, the barrier device moving from the collapsed configuration to the expanded configuration upon being deployed; and

    conformingly contacting the barrier device with tissue surrounding the cavity, using a plurality of barrier-deployment elements coupled at respective distal ends thereof to the barrier device and to the pushing element,the cavity including at least one defect selected from the group consisting of;

    a chondral defect, and an osteochondral defect,wherein a first one of the barrier-deployment elements includes a spring, including;

    a first spring-arm that is pivotably coupled to the pushing element at a proximal end of the first spring-arm; and

    a second spring-arm that is pivotably coupled to the pushing element at a proximal end of the second spring-arm, wherein the proximal end of the second spring-arm is more longitudinally moveable with respect to the pushing element than is the proximal end of the first spring-arm.

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