Surgical instrument and loading unit for use therewith
First Claim
1. A surgical instrument, comprising:
- an endoscopic portion defining a longitudinal axis; and
a tool assembly disposed adjacent a distal end of the endoscopic portion, the tool assembly having a first jaw member, a second jaw member, and a drive assembly disposed for movement with respect to the jaw members, at least one of the jaw members being movable with respect to the other of the jaw members between an open position and an approximated position for engaging body tissue therebetween, the first jaw member including a channel defined therein, the channel having channel dimensions, the drive assembly including a clamping member having a first beam, a second beam, and a third beam disposed between the first beam and the second beam, the first beam being dimensioned to longitudinally translate within the channel, the second beam having dimensions larger than the channel dimensions such that the second beam is physically prevented from entering the channel.
2 Assignments
0 Petitions
Accused Products
Abstract
A surgical instrument is disclosed. The surgical instrument includes a handle assembly, a drive assembly, an endoscopic portion, a pair of jaw members, a dynamic clamping member, and a tissue stop. The drive assembly is disposed in mechanical cooperation with a movable handle of the handle assembly. The endoscopic portion defines a first longitudinal axis. The jaw members are each longitudinally curved with respect to the longitudinal axis. The dynamic clamping member is disposed in mechanical cooperation with a distal portion of the drive assembly and includes an upper beam, a lower beam, and a vertical beam having a cutting edge on a distal portion thereof. At least a portion of the dynamic clamping member is longitudinally curved with respect to the longitudinal axis. The tissue stop is disposed adjacent a distal portion of the first jaw member and configured to impede tissue from distally escaping the jaw members.
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Citations
20 Claims
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1. A surgical instrument, comprising:
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an endoscopic portion defining a longitudinal axis; and a tool assembly disposed adjacent a distal end of the endoscopic portion, the tool assembly having a first jaw member, a second jaw member, and a drive assembly disposed for movement with respect to the jaw members, at least one of the jaw members being movable with respect to the other of the jaw members between an open position and an approximated position for engaging body tissue therebetween, the first jaw member including a channel defined therein, the channel having channel dimensions, the drive assembly including a clamping member having a first beam, a second beam, and a third beam disposed between the first beam and the second beam, the first beam being dimensioned to longitudinally translate within the channel, the second beam having dimensions larger than the channel dimensions such that the second beam is physically prevented from entering the channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A loading unit configured for releasable engagement with a surgical instrument, the loading unit comprising:
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a body portion defining a longitudinal axis, a proximal portion of the body portion configured for releasable engagement with an endoscopic portion of a surgical instrument; a tool assembly disposed adjacent a distal end of the body portion, the tool assembly having a first jaw member, a second jaw member, and a drive assembly disposed for movement with respect to the jaw members, at least one of the jaw members being movable with respect to the other between an open position and an approximated position for engaging body tissue therebetween, the first jaw member including a channel defined therein, the channel having channel dimensions, the drive assembly including a clamping member having a first beam, a second beam, and a third beam disposed between the first beam and the second beam, the first beam being dimensioned to longitudinally translate within the channel, the second beam having dimensions larger than the channel dimensions such that the second beam is physically prevented from entering the channel. - View Dependent Claims (18, 19, 20)
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Specification