A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/32 (2006.01) A61B 17/28 (2006.01)
Patent
CA 2114329
POWERED ROTATABLE CURVED INSTRUMENT ABSTRACT A surgical instrument includes a first member that has an opening in its distal region for admitting tissue and that is rotatable with respect to a base from which the first member extends to allow the rotational orientation of the opening to be selectively changed with respect to the axis of the instrument. A second member is disposed within the first member to transmit force to move a cutting implement disposed at its distal end and cause it to cut tissue that is exposed to the implement through the opening. In one embodiment, a curved, rigid member is disposed coaxially with the first and second members to provide the first member with a bend region that angularly offsets the distal region (and hence the opening) from the axis of the instrument in a selected direction. The first member is relatively flexible, at least in the bend region, to allow the rotational orientation of the opening to be changed without changing the selected direction of the offset. At least a portion of the second member that is disposed in the bend region is also relatively flexible to transmit the applied force through the bend region to the cutting implement.
Borden Ladner Gervais Llp
Smith & Nephew Inc.
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