SURGICAL STAPLER HAVING ACTUATION MECHANISM WITH ROTATABLE SHAFT
First Claim
1. A surgical stapler comprising:
- an elongate shaft having a proximal end and a distal end and defining a longitudinal axis between the proximal end and the distal end;
a jaw assembly positioned at the distal end of the elongate shaft, the jaw assembly comprising;
a first jaw;
a second jaw; and
a plurality of staples;
wherein the jaw assembly is selectively positionable in one of a closed configuration, an open configuration, and a firing configuration; and
a handle assembly positioned at the proximal end of the elongate shaft, the handle assembly comprising;
a stationary handle;
a movable trigger pivotably coupled to the stationary handlean actuation shaft longitudinally slideable within the handle assembly with respect to the longitudinal axis the actuation shaft and rotatable within the handle assembly with respect to the longitudinal axis;
wherein the actuation shaft is operably coupled to the jaw assembly and the actuation shaft is longitudinally slideable in a first direction from a first position corresponding to the open configuration of the jaw assembly to a second position corresponding to the closed configuration of the jaw assembly and from the second position to a third position corresponding to the firing configuration; and
wherein the actuation shaft is operably coupled to the movable trigger and the actuation shaft is rotatable between a first orientation in which movement of the trigger moves the actuation shaft between the second position and the third position and a second orientation in which movement of the trigger moves the actuation shaft from the third position to the first position.
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Accused Products
Abstract
A handle assembly for a surgical stapler can comprise a rotatable actuation shaft. The actuation shaft can have a first rotational orientation in which it can actuate a jaw assembly in a repeatable open and close mode, a second rotational orientation in which it can actuate a jaw assembly in a staple firing mode, and a third rotational orientation in which it can actuate a jaw assembly in a reversing mode. The handle assembly can include a rotational mechanism arranged to discretely position the rotatable actuation shaft in one of the rotational orientations. The rotational mechanism can be arranged for single handed operation such as by including a slideable switch or selector to rotate the actuation shaft.
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Citations
19 Claims
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1. A surgical stapler comprising:
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an elongate shaft having a proximal end and a distal end and defining a longitudinal axis between the proximal end and the distal end; a jaw assembly positioned at the distal end of the elongate shaft, the jaw assembly comprising; a first jaw; a second jaw; and a plurality of staples; wherein the jaw assembly is selectively positionable in one of a closed configuration, an open configuration, and a firing configuration; and a handle assembly positioned at the proximal end of the elongate shaft, the handle assembly comprising; a stationary handle; a movable trigger pivotably coupled to the stationary handle an actuation shaft longitudinally slideable within the handle assembly with respect to the longitudinal axis the actuation shaft and rotatable within the handle assembly with respect to the longitudinal axis; wherein the actuation shaft is operably coupled to the jaw assembly and the actuation shaft is longitudinally slideable in a first direction from a first position corresponding to the open configuration of the jaw assembly to a second position corresponding to the closed configuration of the jaw assembly and from the second position to a third position corresponding to the firing configuration; and wherein the actuation shaft is operably coupled to the movable trigger and the actuation shaft is rotatable between a first orientation in which movement of the trigger moves the actuation shaft between the second position and the third position and a second orientation in which movement of the trigger moves the actuation shaft from the third position to the first position. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A handle assembly for a surgical stapler comprising an elongate shaft having a proximal end and a distal end, the elongate shaft defining a longitudinal axis between the proximal end and the distal end, and a jaw assembly disposed at the distal end of the elongate shaft, the handle assembly comprising:
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a housing; a stationary handle disposed on the housing; a movable handle pivotably coupled to the housing and pivotable between an open position spaced apart from the stationary handle and a closed position adjacent the stationary handle; an actuation mechanism comprising; an advancing driver operably coupled to the movable handle and translatable distally with respect to the longitudinal axis responsive to movement of the movable handle from the open position to the closed position; a reversing driver operably coupled to the movable handle and translatable proximally with respect to the longitudinal axis responsive to movement of the movable handle from the open position to the closed position; and an actuation shaft extending along the longitudinal axis, the actuation shaft rotatably coupled to the housing with respect to the longitudinal axis, and the actuation shaft comprising; an advancing surface extending longitudinally along the actuation shaft; and a reversing surface extending longitudinally along the actuation shaft, the reversing surface angularly offset from the advancing surface; and wherein the actuation shaft is rotatable between a first orientation in which the advancing driver engages the advancing surface and a second orientation in which the reversing driver engages the reversing surface; and a coupler adapted to engage the elongate shaft of the surgical stapler. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A handle assembly for a surgical stapler comprising:
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a housing; a trigger pivotably coupled to the housing; and an actuation mechanism comprising; a forward driver operably coupled to the trigger; a reverse driver operably coupled to the trigger; an actuation shaft having a longitudinal axis, the actuation shaft rotatably coupled to the housing relative to the longitudinal axis, the actuation shaft comprising a forward interface surface and a reverse interface surface angularly offset from the forward interface surface, wherein the actuation shaft is rotatable between a first orientation in which the forward interface surface engages the forward driver to move the actuation shaft in a first direction responsive to pivotal movement of the trigger and a second orientation in which the reverse interface surface engages the reverse driver to move the actuation shaft in a second direction opposite the first direction responsive to pivotal movement of the trigger; and a selector operably coupled to the actuation shaft to selectively rotate the actuation shaft between the first orientation and the second orientation. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification