Surgical instrument with clam releases mechanism
First Claim
1. A surgical instrument comprising:
- a handle assembly;
an endoscopic portion extending distally from the handle assembly; and
an end effector disposed adjacent a distal end of the endoscopic portion and including a first jaw member and a second jaw member, the first jaw member being movable with respect to the second jaw member from an open position to an approximated position,wherein the handle assembly includes;
a drive element configured to translate along a longitudinal axis;
an actuator, wherein at least a partial actuation of the actuator distally translates the drive element and causes the first jaw member to move towards the approximated position; and
a clamp release assembly disposed in mechanical cooperation with the drive element, the clamp release assembly including a clamp pawl and a release member, the clamp pawl being configured for linear movement from a first position where the clamp pawl is engaged with the drive element to prevent proximal movement of the drive element while allowing distal movement of the drive element, to a second position where the clamp pawl is out of engagement with the drive element to allow proximal movement of the drive element, wherein the clamp pawl is biased into engagement with the drive element, wherein the release member is disposed on the actuator, and wherein the clamp pawl remains at the same angle of orientation with respect to the longitudinal axis during actuation of the actuator.
2 Assignments
0 Petitions
Accused Products
Abstract
A handle assembly for use with a surgical instrument having an operative distal end portion is disclosed. The handle assembly comprises a handle housing, a drive element, an actuator and a clamp release assembly. The drive element is disposed at least partially within the handle housing and is longitudinally translatable with respect to the handle assembly. The actuator is disposed in mechanical cooperation with the handle housing. At least a partial actuation of the actuator longitudinally translates the drive element. The clamp release assembly is disposed in mechanical cooperation with the drive element. The clamp release assembly includes a clamp pawl configured to releasable lock the longitudinal position of the drive element.
1085 Citations
20 Claims
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1. A surgical instrument comprising:
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a handle assembly; an endoscopic portion extending distally from the handle assembly; and an end effector disposed adjacent a distal end of the endoscopic portion and including a first jaw member and a second jaw member, the first jaw member being movable with respect to the second jaw member from an open position to an approximated position, wherein the handle assembly includes; a drive element configured to translate along a longitudinal axis; an actuator, wherein at least a partial actuation of the actuator distally translates the drive element and causes the first jaw member to move towards the approximated position; and a clamp release assembly disposed in mechanical cooperation with the drive element, the clamp release assembly including a clamp pawl and a release member, the clamp pawl being configured for linear movement from a first position where the clamp pawl is engaged with the drive element to prevent proximal movement of the drive element while allowing distal movement of the drive element, to a second position where the clamp pawl is out of engagement with the drive element to allow proximal movement of the drive element, wherein the clamp pawl is biased into engagement with the drive element, wherein the release member is disposed on the actuator, and wherein the clamp pawl remains at the same angle of orientation with respect to the longitudinal axis during actuation of the actuator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A handle assembly of a surgical instrument comprising:
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a drive element configured to translate along a longitudinal axis; an actuator, wherein at least a partial actuation of the actuator translates the drive element distally; and a clamp release assembly disposed in mechanical cooperation with the drive element, the clamp release assembly including a clamp pawl and a release member, the clamp pawl configured for movement from a first position where the clamp pawl is engaged with the drive element to prevent proximal movement of the drive element while allowing distal movement of the drive element, to a second position where the clamp pawl is out of engagement with the drive element to allow proximal movement of the drive element, the release member disposed on the actuator, and wherein the clamp pawl remains at the same angle of orientation with respect to the longitudinal axis during actuation of the actuator. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A surgical instrument comprising:
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a drive element configured to translate along a longitudinal axis; an actuator, wherein at least a partial actuation of the actuator translates the drive element along the longitudinal axis; and a clamp release assembly including a clamp pawl and a release member, the clamp pawl configured for movement from a first position where the clamp pawl is in contact with the drive element to prevent proximal movement of the drive element while allowing distal movement of the drive element, to a second position where the clamp pawl is disengaged from the drive element to allow proximal movement of the drive element, the release member disposed on the actuator, and the clamp pawl remains at the same angle of orientation with respect to the longitudinal axis during actuation of the actuator. - View Dependent Claims (19, 20)
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Specification