Patent ID: 9241729
Filing Date: 2016-01-26
CPC Classification: A61B

Claim Text:
1. A system configured to create or enlarge a cavity in a tissue body, the system comprising: a body defining a proximal body portion including a handle and a distal body portion extending from the proximal body portion in a distal direction, the distal body portion including a distal shaft section; an adjustable stop having an internal surface defining an internal bore sized to receive the distal shaft section such that the adjustable stop is translatable along the distal shaft section; a friction reduction covering that includes a covering body defining a proximal covering end and a distal covering end spaced from the proximal covering end along the distal direction, the friction reduction covering including an inner covering surface that defines a covering opening that extends through the covering body and the proximal covering end defining a stop member; and a cavity creation member having a proximal end portion that extends from the distal body portion in the distal direction, is sized to be at least partially disposed in the covering opening, and is movable in the covering opening with respect to the friction reduction covering from a retracted position to a deployed position, whereby, in the deployed position, the stop member of the friction reduction covering abuts the adjustable stop and the cavity creation member extends out from the friction reduction covering further than when in the retracted position, wherein the cavity creation member includes a portion that is biased to move from a first shape when in the retracted position to a second shape when in the deployed position.