Pneumatically powered surgical cutting and fastening instrument with a variable control of the actuating rate of firing with mechanical power assist
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United States of America Patent
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Jun 22, 2010
Grant Date -
Feb 7, 2008
app pub date -
Aug 2, 2006
filing date -
Aug 2, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A surgical instrument that includes a distal member configured to receive a pneumatically operated tool assembly therein. The instrument may also include pneumatically powered drive member configured to generate at least one actuation motion upon receipt of at least one pneumatic signal from a source of pneumatic power fluidically coupled thereto. A drive shaft assembly communicates with the pneumatically powered drive member for transmitting the actuation motions to the distally mounted pneumatically operated tool. The device further includes a power assist member that communicates with the drive shaft assembly for transmitting additional manually generated actuation motions to the drive shaft assembly.
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