Surgical instrument with multiple clamping mechanisms
First Claim
1. A surgical instrument, comprising:
- a shaft comprising a proximal end and a distal end;
an end effector extending from the distal end of the shaft, wherein the end effector is operable to grasp tissue;
a handle extending from the proximal end, wherein the handle comprises a gripping portion; and
a trigger assembly extending from the handle, wherein the trigger assembly comprises a trigger movable relative to the gripping portion between an unactuated position and a first actuated position and a second actuated position, wherein the trigger is operable to control the end effector to selectively grasp tissue at a first compressive force when the trigger is in the first actuated position and a second compressive force when the trigger is in the second actuated position;
wherein the trigger assembly comprises;
a yoke longitudinally slideable relative to the handle and longitudinally engaging the trigger;
a link arm comprising a slot; and
a trigger pin disposed in the slot, wherein the trigger pin links the trigger and link arm;
wherein the trigger pin engages a first portion of the slot when the trigger is in the first actuated position and a second portion of the slot when the trigger is in the second actuated position.
4 Assignments
0 Petitions
Accused Products
Abstract
A nested trigger assembly for a surgical instrument may generally comprise a first trigger and a second trigger, wherein the first trigger and the second trigger are movable together on a first stroke of the nested trigger assembly, wherein the second trigger is configured to be biased away from the first trigger after the first stroke and before a second stroke, and wherein the second trigger is configured to be moved toward to the first trigger during the second stroke. A surgical instrument may generally comprise a shaft comprising a proximal end and a distal end, a handle extending from the proximal end, wherein the handle comprises a gripping portion, and a nested trigger assembly extending from the handle. The nested trigger assemble may comprise one of a separable trigger assembly and a divisible trigger assembly.
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Citations
40 Claims
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1. A surgical instrument, comprising:
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a shaft comprising a proximal end and a distal end; an end effector extending from the distal end of the shaft, wherein the end effector is operable to grasp tissue; a handle extending from the proximal end, wherein the handle comprises a gripping portion; and a trigger assembly extending from the handle, wherein the trigger assembly comprises a trigger movable relative to the gripping portion between an unactuated position and a first actuated position and a second actuated position, wherein the trigger is operable to control the end effector to selectively grasp tissue at a first compressive force when the trigger is in the first actuated position and a second compressive force when the trigger is in the second actuated position; wherein the trigger assembly comprises; a yoke longitudinally slideable relative to the handle and longitudinally engaging the trigger; a link arm comprising a slot; and a trigger pin disposed in the slot, wherein the trigger pin links the trigger and link arm; wherein the trigger pin engages a first portion of the slot when the trigger is in the first actuated position and a second portion of the slot when the trigger is in the second actuated position. - View Dependent Claims (2, 3, 4, 11, 12, 13, 14, 15)
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5. A surgical instrument, comprising:
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a shaft comprising a proximal end and a distal end; an end effector extending from the distal end of the shaft, wherein the end effector is operable to grasp tissue; a handle extending from the proximal end, wherein the handle comprises a gripping portion; and a trigger assembly extending from the handle, wherein the trigger assembly comprises a trigger movable relative to the gripping portion between an unactuated position and a first actuated position and a second actuated position, wherein the trigger is operable to control the end effector to selectively grasp tissue at a first compressive force when the trigger is in the first actuated position and a second compressive force when the trigger is in the second actuated position; wherein the trigger assembly comprises; a yoke longitudinally slideable relative to the handle and longitudinally engaging the trigger, wherein the trigger comprises a cam feature; and a link arm pivotally attached to a yoke, wherein the link arm comprises a cam follower to engage the cam feature; wherein the cam follower engages a first portion of the cam feature when the trigger is in the first actuated position and a second portion of the cam feature when the trigger is in the second actuated position. - View Dependent Claims (16, 17, 18, 19, 20)
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6. A surgical instrument, comprising:
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a shaft comprising a proximal end and a distal end; an end effector extending from the distal end of the shaft, wherein the end effector is operable to grasp tissue; a handle extending from the proximal end, wherein the handle comprises a gripping portion; and a trigger assembly extending from the handle, wherein the trigger assembly comprises a trigger movable relative to the gripping portion between an unactuated position and a first actuated position and a second actuated position, wherein the trigger is operable to control the end effector to selectively grasp tissue at a first compressive force when the trigger is in the first actuated position and a second compressive force when the trigger is in the second actuated position; wherein the trigger assembly comprises; the trigger comprising a trigger slot and a cam feature comprising a trigger notch; a link arm pivotally attached to a yoke, wherein the link arm comprises a cam follower to engage the cam feature; and a trigger pin disposed in the slot, wherein the trigger pin links the trigger and link arm; wherein the cam follower engages a first portion of the notch when the trigger is in the first actuated position and a second portion of the notch when the trigger is in the second actuated position; and wherein the trigger pin engages a first portion of the trigger slot when the trigger is in the first actuated position and a second portion of the trigger slot when the trigger is in the second actuated position. - View Dependent Claims (21, 22, 23, 24, 25)
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7. A surgical instrument, comprising:
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a shaft comprising a proximal end and a distal end; an end effector extending from the distal end of the shaft, wherein the end effector is operable to grasp tissue; a handle extending from the proximal end, wherein the handle comprises a gripping portion; and a trigger assembly extending from the handle, wherein the trigger assembly comprises a trigger movable relative to the gripping portion between an unactuated position and a first actuated position and a second actuated position, wherein the trigger is operable to control the end effector to selectively grasp tissue at a first compressive force when the trigger is in the first actuated position and a second compressive force when the trigger is in the second actuated position; wherein the trigger assembly comprises; a handle comprising a cam feature comprising a cam slot; and a link arm pivotally attached to a yoke, wherein the link arm comprises a linkage pin disposed in the cam slot; a trigger comprising a trigger slot; a trigger pin disposed in the trigger slot, wherein the trigger pin links the trigger and link arm; wherein the linkage pin engages a first portion of the cam slot when the trigger is in the first actuated position and a second portion of the cam slot when the trigger is in the second actuated position; and wherein the trigger pin engages a first portion of the trigger slot when the trigger is in the first actuated position and a second portion of the trigger slot when the trigger is in the second actuated position. - View Dependent Claims (26, 27, 28, 29, 30)
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8. A surgical instrument, comprising:
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a shaft comprising a proximal end and a distal end; an end effector extending from the distal end of the shaft, wherein the end effector is operable to grasp tissue; a handle extending from the proximal end, wherein the handle comprises a gripping portion; and a trigger assembly extending from the handle, wherein the trigger assembly comprises a trigger movable relative to the gripping portion between an unactuated position and a first actuated position and a second actuated position, wherein the trigger is operable to control the end effector to selectively grasp tissue at a first compressive force when the trigger is in the first actuated position and a second compressive force when the trigger is in the second actuated position; wherein the handle comprises a cam feature comprising a slot; and wherein the trigger assembly comprises; a link arm pivotally attached to the trigger; and a yoke longitudinally slideable relative to the handle and longitudinally engaging the trigger, wherein the yoke comprises a cam feature comprising a notch, and a yoke pin comprising a first end disposed in the slot and a second end disposed in the notch; wherein the first end of the yoke pin engages a first portion of the slot and the second end of the yoke pin engages a first portion of the notch when the trigger is in the first actuated position and the first end of the yoke pin engages a second portion of the slot and the second end of the yoke pin engages a second portion of the notch when the trigger is in the second actuated position. - View Dependent Claims (9, 31, 32, 33, 34, 35)
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10. A surgical instrument, comprising:
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a shaft comprising a proximal end and a distal end; an end effector extending from the distal end of the shaft, wherein the end effector is operable to grasp tissue; a handle extending from the proximal end, wherein the handle comprises a gripping portion; and a trigger assembly extending from the handle, wherein the trigger assembly comprises a trigger movable relative to the gripping portion between an unactuated position and a first actuated position and a second actuated position, wherein the trigger is operable to control the end effector to selectively grasp tissue at a first compressive force when the trigger is in the first actuated position and a second compressive force when the trigger is in the second actuated position; wherein the trigger assembly comprises; a yoke longitudinally slideable relative to the handle; a link arm pivotally attached to the yoke and slidingly attached to the trigger, wherein the link arm comprises a cam feature comprising a cam slot; a trigger pin linking the trigger and link arm, wherein the trigger pin is disposed in the cam slot; wherein the trigger pin engages a first portion of the cam slot when the trigger is in the first actuated position and a second portion of the cam slot when the trigger is in the second actuated position. - View Dependent Claims (36, 37, 38, 39, 40)
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Specification