Surgery – Miscellaneous – Methods
Reexamination Certificate
2007-06-04
2010-11-16
Rada, Rinaldi I. (Department: 3721)
Surgery
Miscellaneous
Methods
C227S176100, C227S178100
Reexamination Certificate
active
07832408
ABSTRACT:
A surgical instrument including a switching mechanism which allows a surgeon to selectively advance or retract a staple driver and/or cutting member within a staple cartridge. In various embodiments, the surgical instrument can include a handle, a trigger operatively coupled to the handle, a firing drive, and an end effector. The firing drive can include a first ratchet assembly configured to advance a cutting member in the end effector and a second ratchet assembly configured to retract the cutting member. The trigger can include first and second pawls pivotably mounted thereon which are configured to be selectively engaged with the first and second ratchet assemblies, respectively. In at least one embodiment, the trigger can be configured to slide between a first position in which the first pawl is engaged with the first ratchet assembly and a second position in which the second pawl is engaged with the second ratchet assembly.
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patent:
Boudreaux Chad P.
Shelton, IV Frederick E.
Timm Richard W.
Ethicon Endo-Surgery Inc.
Rada Rinaldi I.
Weeks Gloria R.
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