Surgical stapling apparatus
First Claim
1. A surgical stapling apparatus, comprising:
- a housing;
a handle supported by the housing;
an elongated body extending distally from the housing and having a distal end adapted to releasably engage a loading unit; and
a loading unit supportable on a distal end of the housing, the loading unit including;
a tool assembly having a cartridge assembly configured and adapted to releasably support a staple cartridge having a plurality of surgical fasteners therein, and an anvil assembly movably secured in relation to the cartridge assembly, wherein the anvil assembly is configured and adapted to support an anvil plate and, wherein each of the anvil plate and the staple cartridge define an elongate longitudinal slot;
a surgical buttress preloaded and releasably secured directly to a tissue contacting surface of at least one of the anvil plate and the staple cartridge, wherein each surgical buttress is secured to the at least one of the anvil assembly and the cartridge assembly by a proximal anchor and a distal anchor;
a release knife supported in at least one of the anvil assembly and the cartridge assembly at a location adjacent the distal anchor; and
a drive assembly slidably supported in the tool assembly, the drive assembly including a knife blade slidably disposed within each elongate longitudinal slot, wherein movement of the drive assembly from a proximal position to a distal position results in the knife blade thereof at least one of cutting the proximal anchor and causing the distal anchor to be cut by the release knife, thereby freeing each surgical buttress from the respective at least one anvil assembly and cartridge assembly.
2 Assignments
0 Petitions
Accused Products
Abstract
A surgical stapling apparatus is provided including a cartridge assembly defining a tissue contacting surface; an anvil assembly defining a tissue contacting surface; and a surgical buttress releasably secured to at least one of the tissue contacting surface of the cartridge assembly and the tissue contacting surface of the anvil assembly by at least one anchor. A loading unit is provided including a surgical buttress releasably secured to an anvil assembly and/or a staple cartridge secured thereto by at least one anchor, and a drive assembly including a knife blade, wherein movement of the drive assembly from a proximal position to a distal position results in the knife blade cutting the at least one anchor and freeing each surgical buttress from the anvil assembly and/or cartridge assembly.
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Citations
46 Claims
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1. A surgical stapling apparatus, comprising:
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a housing; a handle supported by the housing; an elongated body extending distally from the housing and having a distal end adapted to releasably engage a loading unit; and a loading unit supportable on a distal end of the housing, the loading unit including; a tool assembly having a cartridge assembly configured and adapted to releasably support a staple cartridge having a plurality of surgical fasteners therein, and an anvil assembly movably secured in relation to the cartridge assembly, wherein the anvil assembly is configured and adapted to support an anvil plate and, wherein each of the anvil plate and the staple cartridge define an elongate longitudinal slot; a surgical buttress preloaded and releasably secured directly to a tissue contacting surface of at least one of the anvil plate and the staple cartridge, wherein each surgical buttress is secured to the at least one of the anvil assembly and the cartridge assembly by a proximal anchor and a distal anchor; a release knife supported in at least one of the anvil assembly and the cartridge assembly at a location adjacent the distal anchor; and a drive assembly slidably supported in the tool assembly, the drive assembly including a knife blade slidably disposed within each elongate longitudinal slot, wherein movement of the drive assembly from a proximal position to a distal position results in the knife blade thereof at least one of cutting the proximal anchor and causing the distal anchor to be cut by the release knife, thereby freeing each surgical buttress from the respective at least one anvil assembly and cartridge assembly. - 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 for use with a surgical stapling apparatus, the loading unit comprising:
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a tool assembly having a cartridge assembly configured and adapted to releasably support a staple cartridge having a plurality of surgical fasteners therein, and an anvil assembly movably secured in relation to the cartridge assembly, wherein the anvil assembly is configured and adapted to support an anvil plate and, wherein each of the anvil plate and the staple cartridge define an elongate longitudinal slot; a surgical buttress preloaded and releasably secured directly to a tissue contacting surface of at least one of the anvil plate and the staple cartridge, wherein each surgical buttress is secured to the at least one of the anvil assembly and the cartridge assembly by a proximal anchor and a distal anchor; a release knife supported in at least one of the anvil assembly and the cartridge assembly at a location adjacent the distal anchor; and a drive assembly slidably supported in the tool assembly, the drive assembly including a knife blade slidably disposed within each elongate longitudinal slot, wherein movement of the drive assembly from a proximal position to a distal position results in the knife blade thereof cutting at least one of the proximal anchor and the distal anchor and freeing each surgical buttress from the respective at least one anvil assembly and cartridge assembly. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A loading unit for selective use with a surgical stapling apparatus, the loading unit comprising:
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a tool assembly having a cartridge assembly configured and adapted to releasably support a staple cartridge having a plurality of surgical fasteners therein, and an anvil assembly movably secured in relation to the cartridge assembly, wherein the anvil assembly is configured and adapted to support an anvil plate and, wherein each of the anvil plate and the staple cartridge define an elongate longitudinal slot; a surgical buttress preloaded and releasably secured directly to a tissue contacting surface of each of the anvil plate and the staple cartridge; anchors securing the surgical buttress to each of the anvil plate and the staple cartridge, wherein an anchor is located near a proximal end and a distal end of each of the anvil assembly and the cartridge assembly; a first knife blade operatively disposed in the anvil assembly, wherein the first knife blade of the anvil assembly has a first position located proximal of a distal anchor of the anvil assembly and a second position located distal of the distal anchor of the anvil assembly, thereby cutting the distal anchor of the anvil assembly; a second knife blade operatively disposed in the cartridge assembly, wherein the second knife blade of the cartridge assembly has a first position located proximal of a distal anchor of the cartridge assembly and a second position located distal of the distal anchor of the cartridge assembly, thereby cutting the distal anchor of the cartridge assembly; and a drive assembly slidably supported in the tool assembly, the drive assembly including a knife blade slidably disposed within each elongate longitudinal slot, wherein movement of the drive assembly from a proximal position to a distal position results in the knife blade thereof cutting a proximal anchor of each of the anvil assembly and the cartridge assembly and freeing a proximal end of each surgical buttress from the respective at least one anvil assembly and cartridge assembly, and wherein movement of the drive assembly from the proximal position to the distal position moves the first knife blade of the anvil assembly and the second knife blade of the cartridge assembly from their respective first positions to their respective second positions, thereby cutting a respective distal anchor of the anvil assembly and the cartridge assembly and freeing a distal end of each surgical buttress from the respective at least one anvil assembly and cartridge assembly.
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34. A surgical stapling apparatus, comprising:
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a cartridge assembly defining a tissue contacting surface and supporting a first knife blade therein; an anvil assembly defining a tissue contacting surface and supporting a second knife blade therein; and a surgical buttress preloaded and releasably secured directly to at least one of the tissue contacting surface of the cartridge assembly and the tissue contacting surface of the anvil assembly by a proximal anchor and a distal anchor, wherein the proximal anchor and the distal anchor release each surgical buttress upon an advancement of a respective one of the first knife blade and the second knife blade of the surgical stapling apparatus. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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Specification