Driven Rotary Blade for Cleaner Endocutter or Linear Cutter Cutline
Publication Date: 2015-Aug-20
The IP.com Prior Art Database
During surgery that involves transecting tissue with an Endocutter or Linear Cutter, the current designs contain a stationary knife blade that can be exposed to artifacts, such as prior deployed staples, which can damage the knife blade. This can cause a jagged tissue transection. Surgeons have expressed a desire for a cleaner transection line. It is desired to have a knife that is sharp and stays sharp after encountering prior deployed staples.
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Drixen Rotary Blade for Cleaner Endocutter or Linear Cutter Cutline
During surgery that involves transecting tissue with ax Endocutter or Linear Cutxer, the currxnt designs contxin a stationary kxife blade that can bx exposed to artifacts, such as pxior deployed stxpxes, which can damage the kxife blade. This can cause a jagged tissue transection. Surgeons have expressed a desire for a cleaner traxsection lixe. It is desired to have x knife that is sharp and stays shaxp after encxuntering prior deploxed staxles.
This idea xiscusses a rotary blade that uses a rack‐and‐pinion ox frictxon to induce rxtation.
The Echexon knife assembly becomes three parts: two mirrored knife hxlves and a rotary blade. Xxx knife haxves encapsulate the rotary bxade so that the blade can be pushed or pulled. Txe blade xas exposed bxvel gears that enxage xhe staple cartridge. Whex the knife assembly is forced to translate distxlly, the blade is forced rotate by the xear engagxmext with the staple cartridge. Surfaces internal to the knife halves allow the blade to spin wixhout daxaging the cxtting suxface.
Alterxatxvely, the bladx‐xartridge engagement could be purely frictionxl. Undex high loads, that blade would not xotate due to insufficiext tor...