Electrical Surgical Instrument with Optimized Power Supply and Drive
First Claim
Patent Images
1. A surgical instrument, comprising:
- a surgical end effector operable to effect a surgical procedure when powered;
an electric motor operationally connected to the end effector; and
a power supply electrically connected to and selectively powering the motor to operate the end effector, the power supply;
having at least one battery cell with a critical current rate; and
having a switch that when activated to power the motor, operates the at least one battery cell at a super-critical current rate.
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Abstract
A surgical instrument includes a surgical end effector operable to effect a surgical procedure when powered, an electric motor operationally connected to the end effector, and a power supply electrically connected to and selectively powering the motor to operate the end effector, the power supply having at least one battery cell with a critical current rate and having a switch that when activated to power the motor, operates the at least one battery cell at a super-critical current rate.
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Citations
27 Claims
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1. A surgical instrument, comprising:
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a surgical end effector operable to effect a surgical procedure when powered; an electric motor operationally connected to the end effector; and a power supply electrically connected to and selectively powering the motor to operate the end effector, the power supply; having at least one battery cell with a critical current rate; and having a switch that when activated to power the motor, operates the at least one battery cell at a super-critical current rate. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A surgical instrument, comprising:
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a surgical end effector operable to effect a surgical procedure when powered; an electric motor operationally connected to the end effector; and a power supply electrically connected to and selectively powering the motor to operate the end effector, the power supply; having at least one battery cell with a critical current rate; and having a switch that when activated to power the motor, operates the at least one battery cell at an average current rate above the critical current rate. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A surgical instrument, comprising:
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a surgical end effector having at least one actuation assembly operable to effect a surgical procedure when powered; an electric motor operationally connected to the end effector to operate the at least one actuation assembly; and a power supply electrically connected to the motor and selectively powering the motor to actuate the at least one actuation assembly at least 1 and less than 16 times during a clinical life of at least one of the end effector, the motor, and the power supply, the power supply having at least one battery cell and a switch that, when activated, operates the at least one battery cell at a super-critical current rate to actuate the at least one actuation assembly only between approximately 0.5 seconds and approximately 15 seconds in duration. - View Dependent Claims (15, 16, 17)
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18. A surgical instrument, comprising:
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a surgical end effector having at least one actuation assembly to effect a surgical procedure when actuated; an electric motor operationally connected to the end effector and having a rated operating voltage; and a power supply electrically connected to and selectively powering the motor to operate the end effector, the power supply; having at least one battery cell with a critical current rate; having a switch that when activated to power the motor, operates the at least one battery cell at a super-critical current rate at any time during at least a portion of a super-critical pulse discharge period; and
operating the motor above the rated operating voltage during the super-critical pulse discharge period. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification