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BALLOON EXPANDABLE CEMENT DIRECTOR AND RELATED METHODS

  • US 20150335370A1
  • Filed: 07/29/2015
  • Published: 11/26/2015
  • Est. Priority Date: 12/14/2007
  • Status: Active Grant
First Claim
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1. A system for treating a vertebral body comprising:

  • a delivery device comprising a distal end configured for insertion into a vertebral body and a proximal end comprising a handle;

    an expandable device configured to be releasably coupled to the distal end of the delivery device, the expandable device comprising a mesh structure comprising a plurality of layers including a first layer comprising a first shape memory material in an austenite phase at body temperature and a second layer comprising a second shape memory material in a martensite phase at body temperature, wherein by forming the mesh structure with the austenite layer and a martensite layer, the mesh structure is configured to correspond in shape to an original undeformed shape of the mesh structure prior to collapsing the mesh structure for delivery, the mesh structure provides structural support for the vertebral body upon deployment and prior to cement injection, anda balloon configured to be coupled at the distal end of the delivery device and adapted to expand the expandable device when disposed therein.

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