Device for repairing a meniscal tear in a knee and method
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United States of America Patent
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Oct 29, 1996
Grant Date -
N/A
app pub date -
Sep 27, 1994
filing date -
Sep 27, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A fastener, driving device, and method are provided for repairing a tear in soft tissue of a patient, a particular exemplary embodiment comprising a meniscal tear in a knee. The fastener has a variable-pitch helical protrusion along a central portion that decreases from the distal end to the proximal end, which can serve to bring two sides of the tear into apposition as the fastener is advanced across the two sides of the tear in a screwing motion. The fastener material preferably is a biodegradable, biocompatible, nontoxic plastic that is specifically designed to be biodegradable generally within the time span of the healing process. A delivery device for introducing the fastener is also provided that includes an elongated needle rotationally coupled with the fastener, the turning of which turns the fastener, advancing the fastener into the tissue. The method of repairing the tear entails manipulating the fastener/delivery device system adjacent and normal to the tear axis and driving the fastener across the tear.
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Family
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