MOTOR-DRIVEN SURGICAL CUTTING AND FASTENING INSTRUMENT WITH TACTILE POSITION FEEDBACK
4 Assignments
0 Petitions
Accused Products
Abstract
A surgical cutting and fastening instrument is disclosed. According to various embodiments, the instrument includes an end effector comprising an elongate channel, a clamping member pivotably connected to the channel, and a moveable cutting instrument for traversing the channel to cut an object clamped in the end effector by the clamping member when the clamping member is in a clamped position. The instrument may also comprise a main drive shaft assembly for actuating the cutting instrument in the end effector, a gear drive train connected to the main drive shaft assembly, and a motor for actuating the gear drive train. The instrument may also includes a closure trigger and a firing trigger, separate from the closure trigger, for actuating the motor when the firing trigger is retracted. Also, the instrument may comprise a mechanical closure system connected to the closure trigger and to the clamping member for causing the clamping member to pivot to the clamped position when the closure trigger is retracted.
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Citations
40 Claims
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1-20. -20. (canceled)
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21. A fastening assembly, comprising:
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a first jaw; a second jaw movable between an open position and a closed position relative to the first jaw; a closure member movable between a first position and a second position, wherein the second jaw is in the open position when the closure member is in the first position and the second jaw is in the closed position when the closure member is in the second position; a rotatable drive shaft; a firing member coupled to the rotatable drive shaft; an electric motor coupled to the rotatable drive shaft, wherein the electric motor is operable to rotate the rotatable drive shaft and advance the firing member through a firing stroke; a sensing device configured to sense when the closure member is in the second position; and a control system in communication with the sensing device, wherein the control system is configured to prevent advancement of the firing member through the firing stroke until after the second jaw is in the closed position. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
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30. A fastening assembly, comprising:
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an end effector, comprising; an elongate channel; an anvil pivotably connected to the elongate channel, wherein the anvil is movable between an open position and a closed position relative to the elongate channel; a cutting member movable between an unfired position and a fully-fired position; a drive system comprising a rotatable drive screw; an electric motor coupled to the rotatable drive screw; a sensor positioned within the elongate channel and configured to sense the closed position of the anvil; and a control system in communication with the sensor, wherein the control system is configured to; rotate the electric motor to move the anvil from the open position toward the closed position; stop rotation of the electric motor when the anvil reaches the closed position; and restart the rotation of the electric motor to move the cutting member from the unfired position toward the fully-fired position when commanded to do so. - View Dependent Claims (31, 32, 33, 34, 35, 36)
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37. A fastening assembly, comprising:
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a first jaw; a second jaw rotatably connected to the first jaw, wherein the second jaw is movable between an open position and a closed position relative to the first jaw; a closure member coupled to the second jaw; a rotatable drive shaft; a firing member coupled to the rotatable drive shaft, wherein the rotation of the rotatable drive shaft moves the firing member between an unfired position and a fully-fired position; an electric motor coupled to the rotatable drive shaft; a sensing device configured to generate an output signal indicative of the second jaw being in the closed position; and a control system in communication with the sensing device, wherein the control system is configured to; control movement of the second jaw and movement of the firing member; and electronically lock the firing member in the unfired position until the second jaw reaches the closed position. - View Dependent Claims (38, 39, 40)
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Specification