Tissue acquisition arrangements and methods for surgical stapling devices
First Claim
1. A surgical instrument comprising:
- a handle assembly;
an elongated shaft protruding from said handle assembly and defining a central axis, said elongated shaft terminating in a stapler head, said stapler head comprising;
a circular staple cartridge having a fastener face; and
an axially movable cutting member;
a firing member operably supported in said elongated shaft and oriented to apply a firing motion to said circular staple cartridge;
an anvil shaft assembly operably supported within said elongated shaft and configured to receive actuation motions from said handle assembly to cause said anvil shaft assembly to move axially within said elongated shaft such that a distal connection portion thereof moves axially relative to said fastener face;
an anvil removably attachable to said distal connection portion of said anvil shaft assembly;
a tissue acquisition shaft rotatably supported within said elongated shaft;
a plurality of tissue acquisition members pivotally attached to a distal end portion of the tissue acquisition shaft and being selectively pivotable between a retracted position to deployed positions upon application of a deployment motion thereto; and
at least one tissue acquisition pin corresponding to each one of said plurality of tissue acquisition members, each said tissue acquisition pin radially protruding outward from said distal end portion of said tissue acquisition shaft to impale tissue drawn in towards said tissue acquisition shaft by said tissue acquisition members when said tissue acquisition members are moved from said deployed positions to said retracted position.
1 Assignment
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Accused Products
Abstract
In various embodiments, a surgical instrument is disclosed comprising a firing member, an anvil shaft assembly operably supported within an elongated shaft, and an anvil removably attachable to a distal connection portion of an anvil shaft assembly. The instrument further comprises a tissue acquisition shaft rotatably supported within the elongated shaft, tissue acquisition members pivotally attached to a distal end portion of the tissue acquisition shaft and being selectively pivotable between a retracted position to deployed positions, and at least one tissue acquisition pin corresponding to each one of the tissue acquisition members, each tissue acquisition pin radially protruding outward from the distal end portion of the tissue acquisition shaft to impale tissue drawn in towards the tissue acquisition shaft by the tissue acquisition members when the tissue acquisition members are moved from the deployed positions to the retracted position.
2619 Citations
17 Claims
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1. A surgical instrument comprising:
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a handle assembly; an elongated shaft protruding from said handle assembly and defining a central axis, said elongated shaft terminating in a stapler head, said stapler head comprising; a circular staple cartridge having a fastener face; and an axially movable cutting member; a firing member operably supported in said elongated shaft and oriented to apply a firing motion to said circular staple cartridge; an anvil shaft assembly operably supported within said elongated shaft and configured to receive actuation motions from said handle assembly to cause said anvil shaft assembly to move axially within said elongated shaft such that a distal connection portion thereof moves axially relative to said fastener face; an anvil removably attachable to said distal connection portion of said anvil shaft assembly; a tissue acquisition shaft rotatably supported within said elongated shaft; a plurality of tissue acquisition members pivotally attached to a distal end portion of the tissue acquisition shaft and being selectively pivotable between a retracted position to deployed positions upon application of a deployment motion thereto; and at least one tissue acquisition pin corresponding to each one of said plurality of tissue acquisition members, each said tissue acquisition pin radially protruding outward from said distal end portion of said tissue acquisition shaft to impale tissue drawn in towards said tissue acquisition shaft by said tissue acquisition members when said tissue acquisition members are moved from said deployed positions to said retracted position. - View Dependent Claims (2, 3, 4, 5)
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6. A surgical procedure for performing a circular anastomosis of a tubular organ, said surgical procedure comprising:
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inserting a surgical instrument into the tubular organ adjacent a targeted portion thereof; said surgical instrument comprising; a handle assembly; an elongated shaft protruding from said handle assembly and defining a central axis, said elongated shaft terminating in a stapler head, said stapler head comprising; a circular staple cartridge having a fastener face; and an axially movable cutting member; a firing member operably supported in said elongated shaft and oriented to apply a firing motion to said circular staple cartridge; an anvil shaft assembly operably supported within said elongated shaft and configured to receive actuation motions from said handle assembly to cause said anvil shaft assembly to move axially within said elongated shaft such that a distal connection portion thereof moves axially relative to said fastener face; an anvil removably attachable to said distal connection portion of said anvil shaft assembly; a tissue acquisition shaft rotatably supported within said elongated shaft; a plurality of tissue acquisition members pivotally attached to a distal end portion of the tissue acquisition shaft and being selectively pivotable between a retracted position to deployed positions upon application of a deployment motion thereto; and at least one tissue acquisition pin corresponding to each one of said plurality of tissue acquisition members, each said tissue acquisition pin radially protruding outward from said distal end portion of said tissue acquisition shaft to impale tissue drawn in towards said tissue acquisition shaft by said tissue acquisition members when said tissue acquisition members are moved from said deployed positions to said retracted position; acquiring a proximal portion of the tubular organ that is adjacent to the targeted portion with a plurality of tissue acquisition members of the surgical instrument; severing the proximal portion of the tubular organ from the targeted portion with the plurality of tissue acquisition members; retaining the proximal portion of the tubular organ adjacent to the fastener face of the staple cartridge; severing the targeted portion of the tubular organ from a distal portion of the tubular organ; inserting an anvil into the distal portion of the tubular organ such that a connection portion of the anvil protrudes proximally out of an open end of the distal portion of the tubular organ; securing the distal portion of the tubular organ to the anvil; coupling the connection portion of the anvil to the surgical instrument; drawing the anvil proximally toward the stapler head such that a proximal end of the distal portion of the tubular organ and the retained proximal portion of the tubular organ are adjacent to each other and captured between the anvil and the fastener face; stapling the proximal end of the distal portion and the retained proximal portion together to form a repaired tubular organ; and cutting through the proximal end of the distal portion and retained proximal portion adjacent to the stapled proximal end and retained proximal portion. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. A surgical instrument comprising:
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an elongated shaft terminating in a stapler head including a circular staple cartridge comprising a fastener face; a firing member operably supported in said elongated shaft and oriented to apply a firing motion to said circular staple cartridge; an anvil shaft assembly operably supported within said elongated shaft and configured to receive actuation motions to cause said anvil shaft assembly to move axially within said elongated shaft such that a distal connection portion thereof moves axially relative to said fastener face; an anvil removably attachable to said distal connection portion of said anvil shaft assembly; and means for shearing tissue operably supported on said elongated shaft adjacent said stapler head, said means for shearing being radially deployable from a retracted position to radially deployed positions to engage tissue, said means for shearing configured to shear the engaged tissue upon return of said means for shearing from said deployed positions to said retracted position. - View Dependent Claims (15, 16)
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17. A surgical instrument comprising:
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an elongated shaft defining a central axis and terminating in a stapler head, said stapler head comprising; a circular staple cartridge having a fastener face; and an axially movable cutting member; a firing member operably supported in said elongated shaft and oriented to apply a firing motion to said circular staple cartridge; an anvil shaft assembly operably supported within said elongated shaft and configured to receive actuation motions to cause said anvil shaft assembly to move axially within said elongated shaft such that a distal connection portion thereof moves axially relative to said fastener face; an anvil removably attachable to said distal connection portion of said anvil shaft assembly; a tissue acquisition shaft rotatably supported within said elongated shaft; a plurality of tissue acquisition members pivotally attached to a distal end portion of the tissue acquisition shaft and being selectively pivotable between a retracted position to deployed positions upon application of a deployment motion thereto; and at least one tissue acquisition element radially protruding outward from said distal end portion of said elongated shaft adjacent to at least one of said tissue acquisition members.
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Specification