Tilting anvil for annular surgical stapler
First Claim
Patent Images
1. A surgical stapling instrument, comprising:
- a handle assembly;
a body portion extending from the handle assembly, the body portion having a rod and a staple cartridge assembly, the staple cartridge assembly defining staple receiving slots; and
an anvil assembly including an anvil head, an anvil member, an anvil shaft, and a biasing member, the anvil shaft defining a longitudinal axis and being connectable to the rod, the anvil member being pivotally secured to the anvil head about a transverse axis, the transverse axis being transverse to and laterally spaced from the longitudinal axis, such that the axes do not intersect, and the anvil member defining staple forming recesses, and the biasing member being supported on the anvil assembly to urge the anvil member from a first position to a second position defining an angle with respect to the longitudinal axis.
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Abstract
A surgical stapling instrument is disclosed, the instrument having a handle assembly, a body portion having a staple cartridge assembly, and an anvil assembly. The anvil assembly includes an anvil head, an anvil member, an anvil shaft, and a biasing member. The anvil shaft defines a longitudinal axis and the anvil member is pivotally secured to the anvil head. The biasing member is supported on the anvil assembly to urge the anvil member from a first position to a second position defining an angle with respect to the longitudinal axis.
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Citations
23 Claims
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1. A surgical stapling instrument, comprising:
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a handle assembly; a body portion extending from the handle assembly, the body portion having a rod and a staple cartridge assembly, the staple cartridge assembly defining staple receiving slots; and an anvil assembly including an anvil head, an anvil member, an anvil shaft, and a biasing member, the anvil shaft defining a longitudinal axis and being connectable to the rod, the anvil member being pivotally secured to the anvil head about a transverse axis, the transverse axis being transverse to and laterally spaced from the longitudinal axis, such that the axes do not intersect, and the anvil member defining staple forming recesses, and the biasing member being supported on the anvil assembly to urge the anvil member from a first position to a second position defining an angle with respect to the longitudinal axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An anvil assembly comprising:
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an avail head; an avail shaft extending from the anvil head and defining a longitude axis; an anvil member pivotally secured to the anvil head about a transverse axis, the transverse axis being transverse to and laterally spaced from the longitude axis, such that the axes do not intersect, the anvil member defining staple forming recesses; and a biasing member being supported on the anvil assembly to urge the anvil member from a first position to a second position defining an angle with respect to the longitudinal axis. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification