Surgical instrument and loading unit for use therewith
First Claim
1. A surgical instrument for surgically joining tissue comprising:
- a handle assembly including a movable handle;
an endoscopic portion extending distally from the handle assembly and defining a first longitudinal axis;
a pair of jaw members disposed adjacent a distal end of the endoscopic portion and extending generally distally therefrom, each of the jaw members being longitudinally curved with respect to the first longitudinal axis, 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 pair of jaw members including a first jaw member and a second jaw member, the first jaw member including a channel having a longitudinally-extending slot therein; and
a drive assembly disposed in mechanical cooperation with the movable handle, wherein the drive assembly is advanced distally through at least a portion of the length of the jaw members in response to at least a partial actuation of the movable handle;
the drive assembly having a drive bar with a lower portion that is configured and dimensioned to travel at least partially within the longitudinally-extending slot of the channel, and wherein the lower portion of the drive bar is elongated and substantially flat along a majority of the entire length of the drive bar.
2 Assignments
0 Petitions
Accused Products
Abstract
A surgical instrument is disclosed. The surgical instrument includes a handle assembly having a movable handle; an endoscopic portion extending distally from the handle and defining a longitudinal axis; a pair of jaw members; and a drive assembly. The jaw members are disposed adjacent a distal end of the endoscopic portion and extend generally distally therefrom. Each jaw member is longitudinally curved with respect to the longitudinal axis. At least one jaw member is movable with respect to the other between open and approximated positions. A first jaw member includes a channel having a longitudinally-extending slot therein. The drive assembly is advanced distally through at least a portion of the length of the jaw members in response to at least a partial actuation of the movable handle. A lower portion of the drive assembly is configured and dimensioned to travel at least partially within the longitudinally-extending slot of the channel.
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Citations
17 Claims
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1. A surgical instrument for surgically joining tissue comprising:
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a handle assembly including a movable handle; an endoscopic portion extending distally from the handle assembly and defining a first longitudinal axis; a pair of jaw members disposed adjacent a distal end of the endoscopic portion and extending generally distally therefrom, each of the jaw members being longitudinally curved with respect to the first longitudinal axis, 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 pair of jaw members including a first jaw member and a second jaw member, the first jaw member including a channel having a longitudinally-extending slot therein; and a drive assembly disposed in mechanical cooperation with the movable handle, wherein the drive assembly is advanced distally through at least a portion of the length of the jaw members in response to at least a partial actuation of the movable handle; the drive assembly having a drive bar with a lower portion that is configured and dimensioned to travel at least partially within the longitudinally-extending slot of the channel, and wherein the lower portion of the drive bar is elongated and substantially flat along a majority of the entire length of the drive bar. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. 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 the surgical instrument; a pair of jaw members extending generally distally from the body portion, each of the jaw members being longitudinally curved with respect to the longitudinal axis, 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 pair of jaw members including a first jaw member and a second jaw member, the first jaw member including a channel with a longitudinally-extending slot therein; and a drive assembly disposed at least partially within the body portion and being longitudinally translatable with respect to the body portion in response to actuation of a portion of the surgical instrument; the drive assembly having a drive bar with an elongated and substantially flat lower portion that is configured and dimensioned to travel at least partially within the longitudinally-extending slot of the channel. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A surgical instrument for surgically joining tissue comprising:
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a handle assembly including a movable handle; an endoscopic portion extending distally from the handle assembly and defining a first longitudinal axis; a pair of jaw members disposed adjacent a distal end of the endoscopic portion and extending generally distally therefrom, each of the jaw members being longitudinally curved with respect to the first longitudinal axis, at least on 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 pair of jaw members including a first jaw member and a second jaw member, each jaw member including a longitudinally-extending slot therein; and a drive assembly including a drive bar, the drive assembly disposed in mechanical cooperation with the movable handle, wherein the drive assembly is advanced distally through at least a portion of the length of the jaw members in response to at least a partial actuation of the movable handle; wherein the drive bar includes an elongated lower portion that is configured and dimensioned to travel at least partially within the longitudinally-extending slot of the first jaw member, wherein the drive bar includes an elongated upper portion that is configured and dimensioned to travel at least partially within the longitudinally-extending slot of the second jaw member, and wherein the elongated lower portion and the elongated upper portion are substantially parallel to each other along at least a majority of an entire length of the drive bar.
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Specification