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US 12,594,088 B2Granted
Unclamped firing lockout for linear surgical stapler
AssigneeCilag GmbH International
InventorsAndrew C. Deck, Jason D. Jones
Life of this patent
Estimating the term…
Abstract
An apparatus includes a first and second elongate member that can releasably couple together to in order to cooperate to clamp and staple tissue, a clamp lever and latch body that together can latch the first and second elongate member to clamp tissue, a firing assembly that can sever and staple clamped tissue, and a lockout assembly that can prevent firing of the firing assembly until the clamp leer and latch body successfully latch the first and second elongate member together to clamp tissue.
Claims18
An apparatus comprising:
- (a) a first elongate body having a first distal portion configured to present a first stapling surface;
- (b) a second elongate body having a second distal portion configured to present a second stapling surface, wherein the first and second elongate body are configured to releasably couple together to enable the first and second stapling surfaces to cooperate to clamp and staple tissue with a plurality of staples;
- (c) a clamp lever coupled to the first elongate body, wherein the clamp lever is configured to actuate between an open position and a closed position,
- (d) a latch body attached to the second elongate body, wherein the clamp lever is configured to engage the latch body while actuating from the open position to the closed position to drive the first elongate body and the second elongate body from an unclamped configuration into a clamped configuration;
- (e) a firing assembly, wherein the firing assembly is actuatable from a home position to fire the staples into the clamped tissue;
- and
- (f) a lockout body biased toward a locked configuration and configured to actuate into an unlocked configuration,
- wherein the lockout body is configured to inhibit the firing assembly from actuating away from the home position in the locked configuration,
- wherein the lockout body is configured to permit the firing assembly to actuate away from the home position in the unlocked configuration,
- wherein the lockout body is configured to actuate into the unlocked configuration in response to the clamp lever actuating into the closed position while engaged with the latch body,
- wherein the lockout body is configured to remain in the locked configuration in response to the clamp lever actuating into the closed position while disengaged with the latch body,
- wherein the lockout body is pivotally coupled to the first elongate body via a pin.
9 more elements
An apparatus comprising:
- (a) a first elongate body having a distal portion configured to present a first stapling surface;
- (b) a second elongate body having a distal portion configured to present a second stapling surface, the second elongate body further comprising a latch pin, wherein the first and second elongate bodies are configured to releasably couple together at their proximal ends to enable the first and second stapling surfaces to cooperate to clamp and staple tissue with a plurality of staples;
- (c) a clamp body pivotally coupled to the first elongate body, wherein the clamp lever is movable relative to the first and second elongate bodies from an open position to a closed position while engaging the latch pin drive the first elongate body and the second elongate body from an unclamped configuration into a clamped configuration;
- and
- (d) a lockout body configured inhibit stapling of tissue in a biased locked configuration and allow stapling of tissue in an unlocked configuration, wherein the lockout body is configured to transition between the biased locked configuration and the unlocked configuration in response to the clamp lever reaching the closed position while engaged with the latch pin, wherein the lockout body is configured to remain in the biased locked configuration in response to the clamp body reaching the closed position while disengaged with the latch pin,
- wherein the lockout body is pivotally attached to the first elongate body via a pin.
3 more elements
An apparatus comprising:
- (a) a cartridge channel having a first distal portion configured to present a first stapling surface;
- (b) an anvil channel having a second distal portion configured to present a second stapling surface, wherein the cartridge channel and the anvil channel are configured to releasably couple together to enable the first and second stapling surfaces to cooperate to clamp and staple tissue with a plurality of staples;
- (c) a clamp lever coupled to the cartridge channel, wherein the clamp lever is configured to actuate between an open position and a closed position,
- (d) an anvil latch pin attached to the anvil channel, wherein the clamp lever is configured to engage the anvil latch pin while actuating from the open position to the closed position to drive the cartridge channel and the anvil channel from an unclamped configuration into a clamped configuration;
- (e) a firing assembly, wherein the firing assembly is actuatable from a home position to fire the staples into the clamped tissue;
- and
- (d) a lockout body configured inhibit stapling of tissue in a biased locked configuration and allow stapling of tissue in an unlocked configuration, wherein a portion of the anvil channel is configured to drive the lockout body into the unlocked configuration, wherein the lockout body is configured to transition between the biased locked configuration and the unlocked configuration in response to the clamp lever reaching the closed position while engaged with the anvil latch pin, wherein the lockout body is configured to remain in the biased locked configuration in response to the clamp lever reaching the closed position while disengaged with the anvil latch pin.
4 more elements
Dependencies are inferred from the claim text.