Apparatus and method for loading a prosthetic nucleus into a deployment cannula to replace the nucleus pulposus of an intervertebral disc
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United States of America Patent
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-
May 11, 2004
Grant Date -
Sep 5, 2002
app pub date -
Nov 15, 2001
filing date -
Apr 26, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus comprising a carrier cartridge, a deployment cannula releasably connected to the carrier cartridge, a folding die, and one or more force application members. A force applied on a prosthetic nucleus by the force application members in the direction of the carrier cartridge toward the deployment cannula causes the prosthetic nucleus to move through the folding die and become loaded into the deployment cannula. The distal end of the cannula is placed into the chamber of the intervertebral disc and the prosthetic nucleus is ejected from the deployment cannula so as to implant the prosthetic nucleus in the chamber of the intervertebral disc.
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