Rotary powered surgical instrument with manually actuatable bailout system
First Claim
1. A surgical instrument, comprising:
- a housing assembly;
a motor assembly operably supported in said housing assembly;
at least one rotary drive system comprising;
a system drive shaft rotatably supported by said housing assembly;
a driven bevel gear axially movable on said system drive shaft between a first position wherein said driven bevel gear is in meshing engagement with a driver bevel gear of said motor assembly and a second position wherein said driven bevel gear is out of meshing engagement with said driver bevel gear; and
a drive system biasing member for biasing said driven bevel gear into said second position; and
a bailout system comprising;
a bailout drive train supported by said housing assembly and configured for selective operable engagement and disengagement with said at least one rotary drive system; and
a bailout handle assembly selectively movable between a stored position within said housing assembly and an actuation position such that, when said bailout handle assembly is in said stored position, said at least one rotary drive system is retained in operable engagement with said motor assembly and when said bailout handle assembly is in said actuation position, said bailout drive train is in operable engagement with said at least one rotary drive system, and wherein said housing assembly further comprises a bailout access panel that is maneuverable between a closed position wherein said bailout handle assembly is completely enclosed within said housing assembly in said stored position and an open position wherein said bailout handle assembly is actuatable such that a portion of said bailout access panel is configured to bias said driven bevel gear into said first position when said bailout access panel is in said closed position.
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Accused Products
Abstract
A motor-driven surgical instrument is disclosed. The surgical instrument comprises a motor that is supported in a housing and includes at least one rotary drive system that is configured for selective operable engagement and disengagement with the motor assembly. A bailout drive train is supported by the housing assembly and is configured for selective operable engagement and disengagement with the at least one rotary drive system. A bailout handle assembly is selectively movable between a stored position within the housing assembly and an actuation position such that, when the bailout handle assembly is in the stored position, the at least one rotary drive system is retained in operable engagement with the motor assembly and when the bailout handle assembly is in the actuation position, the bailout drive train is in operable engagement with the at least one rotary drive system.
2785 Citations
18 Claims
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1. A surgical instrument, comprising:
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a housing assembly; a motor assembly operably supported in said housing assembly; at least one rotary drive system comprising; a system drive shaft rotatably supported by said housing assembly; a driven bevel gear axially movable on said system drive shaft between a first position wherein said driven bevel gear is in meshing engagement with a driver bevel gear of said motor assembly and a second position wherein said driven bevel gear is out of meshing engagement with said driver bevel gear; and a drive system biasing member for biasing said driven bevel gear into said second position; and a bailout system comprising; a bailout drive train supported by said housing assembly and configured for selective operable engagement and disengagement with said at least one rotary drive system; and a bailout handle assembly selectively movable between a stored position within said housing assembly and an actuation position such that, when said bailout handle assembly is in said stored position, said at least one rotary drive system is retained in operable engagement with said motor assembly and when said bailout handle assembly is in said actuation position, said bailout drive train is in operable engagement with said at least one rotary drive system, and wherein said housing assembly further comprises a bailout access panel that is maneuverable between a closed position wherein said bailout handle assembly is completely enclosed within said housing assembly in said stored position and an open position wherein said bailout handle assembly is actuatable such that a portion of said bailout access panel is configured to bias said driven bevel gear into said first position when said bailout access panel is in said closed position. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A surgical instrument, comprising:
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a housing assembly; a motor assembly operably supported within a portion of said housing assembly; at least one rotary drive system supported by said housing assembly and configured for selective operable engagement and disengagement with said motor assembly; an access panel interfacing with said housing assembly and being maneuverable between an open position and a closed position, said access panel operably interfacing with said at least one rotary drive system to positively retain said at least one rotary drive system in operable engagement with said motor assembly when said access panel is in said closed position; and means for disengaging said at least one rotary drive system from said motor assembly and manually applying a rotary motion to said at least one rotary drive system upon manipulation thereof when said access panel has been maneuvered to said open position.
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9. A surgical instrument, comprising:
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a handle assembly configured for operable attachment to a surgical tool assembly, a portion of said handle assembly being maneuverable between an open position and a closed position; a motor assembly operably supported by said handle assembly; at least one rotary drive system operably supported by said handle assembly and being configured for selective operable engagement and disengagement with said motor assembly; and a bailout system, comprising; a bailout drive train supported by said handle assembly and configured for selective operable engagement and disengagement with said at least one rotary drive system; a bailout actuator assembly selectively movable between a stored position within said handle assembly and an actuation position such that, when said bailout actuator assembly is in said stored position, said at least one rotary drive system is retained in operable engagement with said motor assembly and when said bailout actuator assembly is in said actuation position, said bailout drive train is in operable engagement with said at least one rotary drive system; and an actuator biaser configured to bias said bailout actuator assembly from said stored position to said actuation position when said portion of said handle assembly is maneuvered into said open position. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification