Anvil cartridge for surgical fastening device
First Claim
1. A surgical instrument apparatus comprising:
- (a) a body;
(b) a shaft;
(c) an end effector comprising;
(i) an anvil having an upper surface, the anvil comprising an anvil channel, wherein the anvil channel comprises two sidewalls extending along the length of the anvil, wherein the sidewalls extend upwardly and perpendicularly from a lower channel surface of the anvil channel and through the upper surface of the anvil, wherein the sidewalls define an opening in the upper surface of the anvil,(ii) a lower jaw, and(ii) a stapling and severing assembly responsive to a longitudinal closing motion produced by the body and the shaft, wherein the stapling and severing assembly comprises an upper cutting portion and a lower cutting portion, wherein the upper cutting portion is configured to extend into the anvil channel;
(d) a removable staple cartridge, wherein the lower jaw is configured to receive the staple cartridge, the staple cartridge comprising a plurality of staples; and
(e) a removable anvil cartridge positioned in the anvil channel of the anvil, wherein the anvil cartridge is configured to engage the sidewalls of the anvil channel to maintain the position of the anvil cartridge in the anvil channel.
1 Assignment
0 Petitions
Accused Products
Abstract
A surgical instrument includes a handle portion, a shaft housing a firing bar, an end effector comprising an anvil, a lower jaw, and a stapling and severing assembly responsive to a longitudinal closing motion produced by the handle portion and the shaft. The lower jaw is configured to receive a removable cartridge. The cartridge includes a housing, a plurality of staples disposed in the housing, and a deck disposed over the plurality of staples. The deck defines apertures, with each aperture being substantially disposed over each staple. The instrument includes an anvil cartridge removably received in an anvil frame. The anvil cartridge is severed by the firing bar when the firing bar is advanced through tissue such that material from the anvil cartridge is released onto the severed tissue.
1131 Citations
18 Claims
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1. A surgical instrument apparatus comprising:
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(a) a body; (b) a shaft; (c) an end effector comprising; (i) an anvil having an upper surface, the anvil comprising an anvil channel, wherein the anvil channel comprises two sidewalls extending along the length of the anvil, wherein the sidewalls extend upwardly and perpendicularly from a lower channel surface of the anvil channel and through the upper surface of the anvil, wherein the sidewalls define an opening in the upper surface of the anvil, (ii) a lower jaw, and (ii) a stapling and severing assembly responsive to a longitudinal closing motion produced by the body and the shaft, wherein the stapling and severing assembly comprises an upper cutting portion and a lower cutting portion, wherein the upper cutting portion is configured to extend into the anvil channel; (d) a removable staple cartridge, wherein the lower jaw is configured to receive the staple cartridge, the staple cartridge comprising a plurality of staples; and (e) a removable anvil cartridge positioned in the anvil channel of the anvil, wherein the anvil cartridge is configured to engage the sidewalls of the anvil channel to maintain the position of the anvil cartridge in the anvil channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of releasing and activating adhesive with a surgical instrument, the surgical instrument including an end effector, a body, and a shaft, the end effector including a lower jaw and an anvil, wherein the anvil comprises a staple forming member, a first opening in communication with a channel, and a second opening in a lower surface of the anvil and positioned between the channel and the staple forming member, the lower jaw being configured to receive a removable cartridge, the instrument including a stapling and severing assembly responsive to a longitudinal closing motion produced by the body and the shaft, the method comprising the steps of:
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(a) receiving an anvil cartridge through the first opening in the anvil and into the channel in the anvil above the staple forming member of the anvil, wherein the entire anvil cartridge is positioned above the lower surface of the anvil; (b) producing the longitudinal closing motion to advance a severing feature of the stapling and severing assembly; (c) driving the upper portion of the severing feature through the anvil cartridge, wherein the severing feature has an upper portion and a lower portion, wherein the upper portion of the severing feature moves through the anvil cartridge in the channel in the anvil when advancing through the channel; and (d) depositing contents of the anvil cartridge onto tissue by passing the contents of the anvil cartridge through the second opening. - View Dependent Claims (16, 17)
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18. A surgical instrument comprising:
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(a) a body and a shaft, the shaft housing a firing bar; (b) a stapling and severing assembly responsive to a longitudinal closing motion produced by the body and the shaft, (c) an end effector connected to the handle portion, the end effector comprising an anvil and a lower jaw, the anvil defining a channel and a slot, the lower jaw being configured to receive a cartridge; (d) a plurality of staples disposed in a housing of the cartridge, the anvil being configured to form the staples in response to the longitudinal closing motion when the lower jaw with the cartridge is in a closed position; (e) a deck disposed over the plurality of staples, the deck defining apertures, each aperture being substantially disposed over each staple; and (f) a biocompatible material configured for receipt within the channel of the anvil, wherein the biocompatible material includes a top portion comprising a stiffening material configured to maintain the position of the biocompatible material within the channel, wherein the stiffening material is further configured to resist piercing by the staples, wherein the biocompatible material further comprises a bottom portion separate from the top portion; wherein the firing bar is operable to translate longitudinally between the anvil and the cartridge to drive the stapling and severing assembly, wherein the stapling and severing assembly comprises an upper portion configured to sever the bottom portion in the channel of the anvil as the stapling and severing assembly responds to the longitudinal closing motion; and wherein the staples are operable to be driven towards the anvil in response to the longitudinal closing motion and through the bottom portion, wherein the top portion is configured to remain within the channel after the longitudinal closing motion.
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Specification