Modular tool heads for use with circular surgical instruments
First Claim
1. A port for insertion into a patient'"'"'s colon and use during a surgical technique using a surgical stapler, the surgical stapler including a tool head and an anvil attachable to the tool head, said port comprising:
- a frame configured to engage the colon, the frame comprising;
an annular inner ring portion defining an aperture that is sized and configured to permit the anvil in its entirety to be passed therethrough, said annular inner ring portion operably supporting a plurality of radially deployable barbs thereon; and
an annular outer ring portion supported on said annular inner ring portion such that said annular inner ring portion may be selectively rotated relative to said annular outer ring portion between a first position wherein each of said radially deployable barbs does not protrude radially beyond an outermost perimeter of said annular outer ring portion to a second deployed position wherein a tissue engaging portion of each said barb protrudes radially beyond the outermost perimeter of said annular outer ring portion and wherein the port further comprises a sleeve that extends from said annular outer ring portion and is sized and configured to receive at least a portion of the tool head therein.
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Accused Products
Abstract
Various universal ports for installation into a colon are disclosed. Some embodiments include means for permitting an anvil of a surgical stapler to pass through a port in a first direction and means for permitting a portion of the patient'"'"'s colon to pass through the port in a second direction. Some embodiments also employ a flexible sleeve that may extend from the port out through the anus to provide a passageway for passing surgical instruments into and out of the rectum and also for removing severed specimens therefrom.
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Citations
11 Claims
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1. A port for insertion into a patient'"'"'s colon and use during a surgical technique using a surgical stapler, the surgical stapler including a tool head and an anvil attachable to the tool head, said port comprising:
a frame configured to engage the colon, the frame comprising; an annular inner ring portion defining an aperture that is sized and configured to permit the anvil in its entirety to be passed therethrough, said annular inner ring portion operably supporting a plurality of radially deployable barbs thereon; and an annular outer ring portion supported on said annular inner ring portion such that said annular inner ring portion may be selectively rotated relative to said annular outer ring portion between a first position wherein each of said radially deployable barbs does not protrude radially beyond an outermost perimeter of said annular outer ring portion to a second deployed position wherein a tissue engaging portion of each said barb protrudes radially beyond the outermost perimeter of said annular outer ring portion and wherein the port further comprises a sleeve that extends from said annular outer ring portion and is sized and configured to receive at least a portion of the tool head therein. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A port for insertion into a patient'"'"'s colon and use during a surgical technique using a surgical stapler, the surgical stapler including a tool head and an anvil attachable to the tool head, said port comprising:
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a first frame means for defining an aperture that is sized and configured to permit the anvil in its entirety to be passed therethrough; a plurality of tissue-piercing means operably supported on the first frame means, each of said tissue-piercing means being selectively radially deployable from a first orientation to a second deployed orientation; and a second frame means supported on said first frame means such that said first frame means may be selectively rotated relative to said second frame means between a first position wherein each of said tissue-piercing means remain in the first orientation wherein none of said tissue-piercing means protrude radially beyond an outermost perimeter of the second frame means to said second deployed orientation wherein each said tissue-piercing means protrudes radially beyond the outermost perimeter of said second frame means.
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Specification