Rotary knife cutting systems

Details Rotary knife cutting systems Rotary knife cutting systems

2011-06-28

2011-06-28

Durand, Paul R (Department: 3721)

Elongated-member-driving apparatus

Surgical stapler

With magazine

C227S175100, C606S219000

Reexamination Certificate

active

07967181

ABSTRACT:
There are disclosed rotary cutting systems for use with circular surgical stapling devices. The rotary cutting systems generally include a circular knife blade and a mainspring for imparting rotary motion to the circular knife blade. A latch mechanism is provided to maintain the knife blade on a linear travel path during a first predetermined distance and to release the circular knife blade for rotation due to the bias of the mainspring along a second predetermine distance. The circular knife blade may be rotated by the mainspring itself or, in an alternative embodiment, may be driven by frictional engagement with a rotational hammer.

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European Search Report for corresponding EP 08252805 date of mailing is Nov. 17, 2008 (3 pages).

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