Electromechanical surgical devices with single motor drives and adapter assemblies therfor
First Claim
Patent Images
1. An electromechanical surgical system comprising:
- a handle assembly;
a drive motor supported in the handle assembly and extending to a drive gear;
a selector cam defining a recess;
a selector motor extending to a selector gear, the selector gear positioned to move the selector cam between a first position and a second position;
a first output assembly including a first output shaft and a first output gear, the first output shaft selectively coupled to the first output gear by a first engagement key, the first output gear rotatable with the drive gear of the drive motor, the first engagement key positionable within the recess of the selector cam while the selector cam is in the first position to engage the first output gear with the first output shaft, the first output shaft rotatable with the first output gear in response to rotation of the drive gear of the drive motor while the first output gear is coupled to the first output shaft, the first output gear being rotatable relative to the first output shaft while the selector cam is in the second position; and
a second output assembly including a second output shaft and a second output gear, the second output shaft selectively coupled to the second output gear by a second engagement key, the second output gear engaged with the first output gear of the first output assembly, the second engagement key positionable within the recess of the selector cam while the selector cam is in the second position to engage the second output gear with the second output shaft, the second output shaft rotatable with the second output gear in response to rotation of the drive gear of the drive motor while the second output gear is coupled to the second output shaft, the second output gear being rotatable relative to the second output shaft while the selector cam is in the first position.
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Abstract
The present disclosure relates to surgical systems including hand-held electromechanical surgical devices and adapter assemblies for connecting surgical loading units to the hand-held electromechanical surgical devices. The presently described electromechanical surgical devices include single motor drives that selectively drive various output assemblies coordinated by selector motors to operate the surgical loading units.
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Citations
20 Claims
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1. An electromechanical surgical system comprising:
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a handle assembly; a drive motor supported in the handle assembly and extending to a drive gear; a selector cam defining a recess; a selector motor extending to a selector gear, the selector gear positioned to move the selector cam between a first position and a second position; a first output assembly including a first output shaft and a first output gear, the first output shaft selectively coupled to the first output gear by a first engagement key, the first output gear rotatable with the drive gear of the drive motor, the first engagement key positionable within the recess of the selector cam while the selector cam is in the first position to engage the first output gear with the first output shaft, the first output shaft rotatable with the first output gear in response to rotation of the drive gear of the drive motor while the first output gear is coupled to the first output shaft, the first output gear being rotatable relative to the first output shaft while the selector cam is in the second position; and a second output assembly including a second output shaft and a second output gear, the second output shaft selectively coupled to the second output gear by a second engagement key, the second output gear engaged with the first output gear of the first output assembly, the second engagement key positionable within the recess of the selector cam while the selector cam is in the second position to engage the second output gear with the second output shaft, the second output shaft rotatable with the second output gear in response to rotation of the drive gear of the drive motor while the second output gear is coupled to the second output shaft, the second output gear being rotatable relative to the second output shaft while the selector cam is in the first position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An electromechanical surgical system, comprising:
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an adapter assembly having proximal and distal ends; a loading unit removably coupled to the distal end of the adapter assembly; a handle assembly coupled to the proximal end of the adapter assembly, the handle assembly including; a drive motor; a drive gear coupled to the drive motor; a selector cam defining a recess; a selector motor extending to a selector gear, the selector gear positioned to move the selector cam between a first position and a second position; a first output assembly including a first output shaft and a first output gear, the first output gear rotatable with the drive gear of the drive motor, the first output shaft rotatable with the first output gear while the selector cam is in the first position; and a second output assembly including a second output shaft and a second output gear, the second output gear engaged with the first output gear of the first output assembly, the second output shaft rotatable with the second output gear while the selector cam is in the second position. - View Dependent Claims (18, 19)
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20. An electromechanical surgical system, comprising:
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an adapter assembly having proximal and distal ends, the proximal end including first and second input couplers; a loading unit removably coupled to the distal end of the adapter assembly and operably coupled to the first and second input couplers of the adapter assembly; and a handle assembly coupled to the proximal end of the adapter assembly, the handle assembly including; a drive motor; a drive gear coupled to the drive motor; a selector cam defining a recess; a selector motor extending to a selector gear, the selector gear positioned to move the selector cam between a first position and a second position; a first output gear rotatable with the drive gear of the drive motor; a first output shaft rotatable with the first output gear and coupled to the first input coupler of the adapter assembly to drive the first input coupler while the selector cam is in the first position; a second output gear engaged with the first output gear; and a second output shaft rotatable with the second output gear and coupled to the second input coupler of the adapter assembly to drive the second input coupler while the selector cam is in the second position.
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Specification