Motor-driven surgical cutting and fastening instrument with user feedback system
First Claim
1. A surgical cutting and fastening instrument comprising:
- an end effector comprising first and second pivotably connected, opposing jaw members, wherein the first jaw member defines an elongate cutting channel that extends longitudinally along the first jaw member, and wherein the first jaw member comprises a cutting instrument for cutting an object positioned between the first and second jaw members by distally traversing the cutting channel as part of a cutting stroke when the cutting instrument is actuated;
a rotating main drive shaft assembly connected to the cutting instrument of the end effector; and
a handle connected to the main drive shaft assembly, the handle comprising;
a gear drive train connected to the main drive shaft assembly;
a main electric motor for actuating the gear drive train, to thereby rotate the main drive shaft assembly;
a pistol grip portion; and
a firing trigger connected to and rotatably retractable relative to the pistol grip portion about a pivot, such that retraction of the firing trigger toward the pistol grip portion causes actuation of the motor, which causes actuation of the cutting instrument via the gear drive train and main drive assembly, wherein the rotational position of the firing trigger relative to the pistol grip portion is related to the position of the cutting instrument along the cutting stroke in the cutting channel of the first jaw member of the end effector, wherein the firing trigger includes a gear portion that is geared to the gear drive train.
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Accused Products
Abstract
A surgical cutting and fastening instrument is disclosed. According to various embodiments, the instrument includes an end effector comprising a moveable cutting instrument for cutting an object positioned in the end effector, a main drive shaft assembly connected to the end effector, and a handle connected to the main drive shaft assembly. The handle includes a gear drive train connected to the main drive shaft assembly, a main motor for actuating the gear drive train, and a firing trigger such that retraction of the firing trigger causes actuation of the motor. Also, the rotational position of the firing trigger is related to the position of the cutting instrument in the end effector.
2957 Citations
22 Claims
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1. A surgical cutting and fastening instrument comprising:
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an end effector comprising first and second pivotably connected, opposing jaw members, wherein the first jaw member defines an elongate cutting channel that extends longitudinally along the first jaw member, and wherein the first jaw member comprises a cutting instrument for cutting an object positioned between the first and second jaw members by distally traversing the cutting channel as part of a cutting stroke when the cutting instrument is actuated; a rotating main drive shaft assembly connected to the cutting instrument of the end effector; and a handle connected to the main drive shaft assembly, the handle comprising; a gear drive train connected to the main drive shaft assembly; a main electric motor for actuating the gear drive train, to thereby rotate the main drive shaft assembly; a pistol grip portion; and a firing trigger connected to and rotatably retractable relative to the pistol grip portion about a pivot, such that retraction of the firing trigger toward the pistol grip portion causes actuation of the motor, which causes actuation of the cutting instrument via the gear drive train and main drive assembly, wherein the rotational position of the firing trigger relative to the pistol grip portion is related to the position of the cutting instrument along the cutting stroke in the cutting channel of the first jaw member of the end effector, wherein the firing trigger includes a gear portion that is geared to the gear drive train. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 16, 20, 21, 22)
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13. A surgical cutting and fastening instrument comprising:
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an end effector comprising; an elongate channel; a clamping member pivotably connected to the channel; and a moveable cutting instrument for longitudinally traversing the channel as part of a cutting stroke to cut an object clamped in the end effector by the clamping member when the clamping member is in a clamped position; a rotating main drive shaft assembly connected to the cutting instrument in the end effector; and a handle connected to the main drive shaft assembly, the handle comprising; a pistol grip portion; a closure trigger connected to and retractable relative to the pistol grip portion, such that retraction of the closure trigger toward the pistol grip portion cause the clamping member to pivot to the clamped position; a gear drive train connected to the main drive shaft assembly; a main electric motor for actuating the gear drive train, to thereby rotate the main drive shaft assembly; and a firing trigger connected to and rotatably retractable relative to the pistol grip portion about a pivot, such that retraction of the firing trigger toward the pistol grip portion causes actuation of the motor, wherein the rotational position of the firing trigger relative to the pistol grip portion is related to the position of the cutting instrument along the cutting stroke in the channel of the end effector, wherein the firing trigger includes a gear portion that is geared to the gear drive train. - View Dependent Claims (14, 15)
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17. A surgical cutting and fastening instrument comprising:
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an end effector comprising a moveable cutting instrument for cutting an object positioned in the end effector; a rotating main drive shaft assembly connected to the end effector; and a handle connected to the main drive shaft assembly, the handle comprising; a gear drive train connected to the main drive shaft assembly; an electric motor for actuating the gear drive train, to thereby rotate the main drive shaft assembly; and an elongate, retractable firing trigger that is retractable toward a pistol grip portion of the handle such that retraction of the firing trigger causes actuation of the motor, wherein the rotational position of the firing trigger relative to the pistol grip portion is related to the position of the cutting instrument along a cutting stroke in the end effector, wherein the firing trigger includes a gear portion that is geared to the gear drive train. - View Dependent Claims (18, 19)
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Specification