Surgery – Instruments – Cutting – puncturing or piercing
Patent
1994-10-13
1997-01-07
Buiz, Michael Powell
Surgery
Instruments
Cutting, puncturing or piercing
606160, 606159, 604 22, A61B 1732
Patent
active
055911846
ABSTRACT:
A fluid jet surgical cutting instrument having a pressure generating mechanism disposed within the housing of the instrument. The pressure generating mechanism includes a piston member which is reciprocatingly movable within the housing by alternately supplying gas to the distal end of the piston and the proximal end of the piston. The gas is supplied in an alternating manner through the provision of a novel actuator mechanism which includes a plurality of passageways which permits charging of gas to the pressure amplifying mechanism as well as venting of gas from the pressure amplifying mechanism to permit reciprocating movement.
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Cortez David L.
McDonnell Christopher
Scott Ian M.
Whitfield Kenneth H.
Buiz Michael Powell
Lewis William
Sentinel Medical, Inc.
Zimmerman Harris
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