Tissue tensioner assembly and approximation mechanism for surgical stapling device
First Claim
1. A surgical stapling device comprising:
- an elongated body portion;
a distal head portion including an anvil assembly and a shell assembly, the anvil assembly including an anvil head assembly and an anvil shaft, the shell assembly supporting a plurality of staples, the anvil assembly being movable in relation to the shell assembly between spaced and approximated positions;
a tissue tensioner assembly including a tissue engaging member slidably positioned along the anvil shaft, an elongated link, and an actuator member, the tissue engaging member being positioned at a distal end of the elongated link and the actuator member being positioned at a proximal end of the elongated link, wherein the tissue engaging member includes a locking member positioned for releasably engaging a portion of the anvil shaft to selectively and releasably secure the tissue engaging member at a plurality of fixed axial locations along the anvil shaft.
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Accused Products
Abstract
A surgical stapling device having an approximation mechanism for treating hollow tissue organs is provided. The stapling device includes a handle, a body portion extending distally from the handle, a distal head portion at a distal end of the body portion, and an approximation mechanism. The head portion includes an anvil assembly having an anvil head and an anvil shaft. The approximation mechanism includes a rotatable approximation knob, a first member, and a second member. The rotatable approximation knob is operably connected to the first member to effect movement the first member over a first distance. The second member is rotatably coupled to a proximal end of the anvil shaft of the anvil assembly to operably connect the anvil shaft to the first member such that movement of the first member over the first distance effects movement of the anvil shaft in relation to the first member over a second distance.
617 Citations
7 Claims
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1. A surgical stapling device comprising:
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an elongated body portion; a distal head portion including an anvil assembly and a shell assembly, the anvil assembly including an anvil head assembly and an anvil shaft, the shell assembly supporting a plurality of staples, the anvil assembly being movable in relation to the shell assembly between spaced and approximated positions; a tissue tensioner assembly including a tissue engaging member slidably positioned along the anvil shaft, an elongated link, and an actuator member, the tissue engaging member being positioned at a distal end of the elongated link and the actuator member being positioned at a proximal end of the elongated link, wherein the tissue engaging member includes a locking member positioned for releasably engaging a portion of the anvil shaft to selectively and releasably secure the tissue engaging member at a plurality of fixed axial locations along the anvil shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification