TISSUE ACQUISITION ARRANGEMENTS AND METHODS FOR SURGICAL STAPLING DEVICES
First Claim
1. A surgical instrument comprising:
- an elongated shaft defining a central axis and having a distal end portion configured to operably support a circular staple cartridge therein;
a tissue acquisition shaft rotatably supported within said elongated shaft and having a distal portion that protrudes distally beyond the distal end portion of the elongated shaft; and
at least one tissue acquisition member pivotally attached to said distal portion of the tissue acquisition shaft such that said at least one tissue acquisition member is selectively pivotable about a corresponding acquisition axis that is substantially parallel to said central axis from a retracted position to deployed positions upon application of a deployment motion thereto.
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Accused Products
Abstract
A surgical instrument that includes an elongated shaft that defines defining a central axis. The elongated shaft may have a distal end portion that is configured to operably support a circular staple cartridge therein. A tissue acquisition shaft may be axially movable within the elongated shaft such that a distal end portion of the tissue acquisition shaft may be distally advanced beyond the distal end portion of the elongated shaft. At least one tissue acquisition member may be pivotally attached to the distal end portion of the tissue acquisition shaft such that at least one tissue acquisition member is selectively pivotable about a corresponding acquisition axis that is substantially parallel to the central axis from a retracted position to deployed positions upon application of a deployment motion thereto. Various embodiments include an annular cutting member that is supported by the distal end of the elongated shaft for selective axial travel relative thereto.
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Citations
20 Claims
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1. A surgical instrument comprising:
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an elongated shaft defining a central axis and having a distal end portion configured to operably support a circular staple cartridge therein; a tissue acquisition shaft rotatably supported within said elongated shaft and having a distal portion that protrudes distally beyond the distal end portion of the elongated shaft; and at least one tissue acquisition member pivotally attached to said distal portion of the tissue acquisition shaft such that said at least one tissue acquisition member is selectively pivotable about a corresponding acquisition axis that is substantially parallel to said central axis from a retracted position to deployed positions upon application of a deployment motion thereto. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. 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 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 at least one tissue acquisition members, each said tissue acquisition pin radially protruding outward from said distal end 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 to said retracted position.
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- 11. The surgical instrument of claim 11 wherein each said acquisition member has a tissue piercing acquisition tip formed thereon.
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13. A surgical procedure for performing a circular anastomosis of a tubular organ, said surgical procedure comprising:
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inserting a stapler head of a surgical instrument into the tubular organ adjacent a targeted portion thereof, the stapler head operably supporting s staple cartridge therein, the staple cartridge having a fastener face; 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 staples. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification