Elongated-member-driving apparatus – Surgical stapler – With magazine
Reexamination Certificate
2007-02-12
2011-10-18
Tawfik, Sameh H. (Department: 3721)
Elongated-member-driving apparatus
Surgical stapler
With magazine
C227S019000, C227S176100, C361S023000
Reexamination Certificate
active
08038046
ABSTRACT:
A surgical instrument includes an end effector having an actuation assembly to effect a surgical procedure when actuated. An electric motor has a rated operating voltage and is operationally connected to the end effector to operate the actuation assembly. A power supply is electrically connected to the motor and selectively powers the motor to actuate the actuation assembly at least 1 and less than 16 times during a clinical life of at least one of the end effector, the motor, or the power supply. The power supply has a battery cell with a critical current rate. When activated to power the motor and actuate the actuation assembly, the power supply operates the battery cell at a super-critical current rate during a non-zero super-critical pulse discharge period lasting less than approximately 16 seconds. The power supply operates the motor above the rated operating voltage during the super-critical pulse discharge period.
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Bales Thomas
Deville Derek Dee
Palmer Matthew A.
Rivera Carlos
Smith Kevin W.
Ethicon Endo-Surgery Inc.
Mayback Gregory L.
Mayback & Hoffman P.A.
Tawfik Sameh H.
Tie Rebecca A.
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