Powered surgical stapling device
First Claim
1. A medical instrument having a tool assembly attachable to a distal end of the medical instrument, the tool assembly including a pair of opposing tissue engaging surfaces actuated by advancing a drive beam including a coupling member, the medical instrument comprising:
- a housing having a fixed handle;
a movable handle mounted to the housing and selectively movable relative to the fixed handle from a first position in spaced relation relative to the fixed handle to a second position closer to the fixed handle, wherein the movable handle engages the coupling member such that the drive beam is advanced when the movable handle is moved from the first position to the second position; and
a selectively activatable drive assembly including a power source and a motor which is operatively coupled to the coupling member, wherein upon actuation the motor advances the coupling member, the selectively activatable drive assembly also including a controller configured to variably control the rate at which the motor advances the coupling member in response to the force exerted on the movable handle.
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Accused Products
Abstract
A medical instrument having a tool assembly attachable to a distal end of the medical instrument is disclosed. The tool assembly includes a pair of opposing tissue engaging surfaces for clamping tissue therebetween. The medical instrument also includes a housing having a fixed handle and a movable handle mounted to the housing and selectively movable relative to the fixed handle from a first position in spaced relation relative to the fixed handle to a second position closer to the fixed handle to actuate the clamping of tissue. The instrument further includes a selectively activatable drive assembly including a power source and a motor which is operatively coupled to the movable handle, wherein upon actuation the motor actuates the pair of opposing tissue engaging surfaces. The drive assembly also includes a controller configured to variably control the rate at which the motor actuates the pair of opposing tissue engaging surfaces in response to the force exerted on the movable handle.
1961 Citations
19 Claims
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1. A medical instrument having a tool assembly attachable to a distal end of the medical instrument, the tool assembly including a pair of opposing tissue engaging surfaces actuated by advancing a drive beam including a coupling member, the medical instrument comprising:
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a housing having a fixed handle; a movable handle mounted to the housing and selectively movable relative to the fixed handle from a first position in spaced relation relative to the fixed handle to a second position closer to the fixed handle, wherein the movable handle engages the coupling member such that the drive beam is advanced when the movable handle is moved from the first position to the second position; and a selectively activatable drive assembly including a power source and a motor which is operatively coupled to the coupling member, wherein upon actuation the motor advances the coupling member, the selectively activatable drive assembly also including a controller configured to variably control the rate at which the motor advances the coupling member in response to the force exerted on the movable handle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A medical instrument, comprising:
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a tool assembly attachable to a distal end of the medical instrument, the tool assembly including a pair of opposing tissue engaging surfaces; and a selectively activatable drive assembly including; a motor which is operatively coupled to the tool assembly, wherein upon actuation the motor actuates the pair of opposing tissue engaging surfaces; a controller configured to variably control the rate at which the motor actuates the pair of opposing tissue engaging surfaces; and a sensor configured to transmit signals to the controller, the signals being representative of a force applied to a movable handle such that the rate at which the motor actuates the tissue engaging surfaces is controlled in response to the force exerted on the movable handle. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification