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US 8,215,533 B2Granted
Rotary knife cutting systems
AssigneeTyco Healthcare Group LP
InventorsFrank J Viola, Eric J Taylor
Life of this patent
Estimating the term…
Abstract
A rotary cutting system for use with a surgical stapling device. The rotary cutting system generally includes a knife blade and a mainspring for imparting rotary motion to the circular knife blade. A hammer member is provided and is configured and adapted to engage the knife blade.
Claims7
A rotary cutting system for use with a surgical stapling device comprising:
- a knife blade having a distal cutting edge and a proximal base;
- a support base positioned within a surgical stapling device;
- a mainspring for imparting motion to the knife blade relative to the support base;
- and
- a hammer member interposed between the knife blade and the mainspring, the hammer member being engageable with the proximal base of the knife blade, wherein a first end of the mainspring is attached to the support base and a second end of the mainspring is engageable with the hammer member.
2 more elements
Dependencies are inferred from the claim text.