Surgical stapling apparatus and method
First Claim
1. A staple gap adjustment member for use in a surgical stapling apparatus having a pair of jaw structures operably coupled with one another and defining a staple gap therebetween, the gap adjustment member comprising:
- one or more bearing portions sharing a common rotational axis; and
one or more cam surface portions having a substantially arcuate transverse cross-sectional profile and a periphery with at least two different points along the periphery, with each point along the periphery having a different radius from the rotational axis.
2 Assignments
0 Petitions
Accused Products
Abstract
The present disclosure is directed to staple-gap adjustment members for use in surgical stapling apparatus and methods. A gap adjustment member includes one or more bearing portions sharing a common rotational axis and one or more cam surface portions having a periphery with at least two different points along the periphery, with each point along the periphery having a different radius from the rotational axis. The one or more cam surface portions can have a central axis parallel to and spaced a distance from the rotational axis of the one or more bearing portions.
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Citations
36 Claims
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1. A staple gap adjustment member for use in a surgical stapling apparatus having a pair of jaw structures operably coupled with one another and defining a staple gap therebetween, the gap adjustment member comprising:
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one or more bearing portions sharing a common rotational axis; and one or more cam surface portions having a substantially arcuate transverse cross-sectional profile and a periphery with at least two different points along the periphery, with each point along the periphery having a different radius from the rotational axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A staple gap adjustment member for use in a surgical stapling apparatus having a pair of jaw structures operably coupled with one another and defining a staple gap therebetween, the gap adjustment member comprising:
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a forward portion; a rearward portion, the forward and rearward portions sharing a common rotational axis; and a body portion interconnecting the forward and rearward portions, the body portion having a substantially arcuate transverse cross-section profile and a periphery with at least two different points along the periphery, with each point having a different radius from the rotational axis. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A surgical stapling apparatus, comprising:
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a jaw structure with a cartridge receiving portion and a jaw structure with an anvil receiving portion, the jaw structures being operably couplable to one another to provide a staple gap between a forward portion of the cartridge receiving portions, one of the jaw structures having a pair of mounting members thereon for mounting the other of the jaw structures thereon; and a staple gap adjustment member having a cam surface portion operatively disposed between the jaw structures, wherein a rotation of the gap adjustment member results in a corresponding adjustment in the size of the staple gap. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A method of adjusting a staple gap in a surgical stapling apparatus, comprising:
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providing a surgical stapling apparatus having a jaw structure with an anvil receiving portion and a jaw structure with a cartridge receiving portion, the jaw structures being operatively couplable to one another to provide a staple gap between a respective forward portion of the anvil and cartridge receiving portions, one of the jaw structures having a pair of mounting members thereon for mounting the other of the jaw structures thereon; positioning a gap adjustment member on the mounting members between the jaw structures to provide a desired gap between the forward portions of the anvil and cartridge receiving portions; and locking the gap adjustment member in position against the mounting members to fix the desired staple gap. - View Dependent Claims (34, 35, 36)
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Specification