Generator for use with an ultrasonic surgical instrument
A generator comprising an interface and a control circuit is disclosed. The interface is to electrically couple to an ultrasonic surgical instrument comprising a switch. The switch is configurable between a first switch state and a second switch state. The control circuit is to provide a continuous drive signal to the ultrasonic surgical instrument based on the switch being in the first switch state. The control circuit is to provide a pulsed drive signal to the ultrasonic surgical instrument based on the switch being in the second switch state.
1. A generator, comprising:
an interface to electrically couple to an ultrasonic surgical instrument comprising a switch, wherein the switch is configurable between a first switch state and a second switch state; and
a control circuit, to:
provide a continuous drive signal to the ultrasonic surgical instrument based on the switch being in the first switch state; and
provide a pulsed drive signal to the ultrasonic surgical instrument based on the switch being in the second switch state.
2. The generator of claim 1 , wherein the continuous drive signal is at a power level less than a maximum power level of the generator.
3. The generator of claim 1 , wherein the pulsed drive signal is at a maximum power level of the generator.
4. The generator of claim 1 , wherein the continuous drive signal has a first power and the pulsed drive signal has a second power higher than the first power.
5. The generator of claim 1 , wherein with respect to the pulsed drive signal, the generator is to provide:
a first pulse having a first amplitude; and
a second pulse having a second amplitude different than the first amplitude.
6. The generator of claim 5 , wherein the first pulse is pulsed for a first pulse time, and wherein the second pulse is pulsed for a second pulse time different than the second pulse time.
7. The generator of claim 1 , wherein with respect to the continuous drive signal, the generator is to provide:
a first current for a first time;
a second current for a second time after the first time, wherein the second current is higher than the first current; and
a third current for a third time after the second time, wherein the third current is higher than the second current.
8. The generator of claim 1 , wherein the control circuit is further to:
monitor the continuous drive signal; and
trigger a pulsing response based on the monitored drive signal meeting a logic condition.
9. The generator of claim 1 , wherein the ultrasonic surgical instrument comprises an end effector and an ultrasonic transducer to resonate at a resonant frequency, and wherein with respect to the continuous drive signal, the control circuit is to:
set the continuous drive signal to a first frequency for a first time, wherein the first frequency is different from the resonant frequency; and
after the first time, set the continuous drive signal to the resonant frequency.
10. A generator for use with an ultrasonic surgical instrument comprising a switch, the switch configurable between a first switch state and a second switch state, wherein the generator comprises:
a control circuit, to:
provide a continuous drive signal to the ultrasonic surgical instrument based on the switch being in the first switch state; and
provide a pulsed drive signal to the ultrasonic surgical instrument based on the switch being in the second switch state.
11. The generator of claim 10 , wherein the continuous drive signal is at a power level less than a maximum power level of the generator.
12. The generator of claim 10 , wherein the pulsed drive signal is at a maximum power level for the generator.
13. The generator of claim 10 , wherein the continuous drive signal has a first power and the pulsed drive signal has a second power higher than the first power.
14. The generator of claim 10 , wherein with respect to the pulsed drive signal, the generator is to provide:
a first pulse having a first amplitude; and
a second pulse having a second amplitude different than the first amplitude.
15. The generator of claim 14 , wherein the first pulse is pulsed for a first pulse time, and wherein the second pulse is pulsed for a second pulse time different than the second pulse time.
16. The generator of claim 10 , wherein with respect to the continuous drive signal, the generator is to provide:
a first current for a first time;
a second current for a second time after the first time, wherein the second current is higher than the first current; and
a third current for a third time after the second time, wherein the third current is higher than the second current.
17. The generator of claim 10 , wherein the control circuit is further to:
monitor the continuous drive signal; and
trigger a pulsing response based on the monitored drive signal meeting a logic condition.
18. The generator of claim 10 , wherein the ultrasonic surgical instrument comprises an end effector and an ultrasonic transducer to resonate at a resonant frequency, and wherein with respect to the continuous drive signal, the control circuit is to:
set the continuous drive signal to a first frequency for a first time, wherein the first frequency is different from the resonant frequency; and
after the first time, set the continuous drive signal to the resonant frequency.
19. A generator, comprising:
an interface to electrically couple to an ultrasonic surgical instrument comprising an ultrasonic transducer and a switch, the switch configurable between a first switch state and a second switch state; and
a control circuit, to:
provide a continuous drive signal to the ultrasonic transducer based on the switch being in the first switch state; and
provide a pulsed drive signal to the ultrasonic transducer based on the switch being in the second switch state.
20. The generator of claim 19 , wherein the continuous drive signal has a first power and the pulsed drive signal has a second power higher than the first power.