Method and system for transmitting data across patient isolation barrier
First Claim
1. A system for controlling an electrosurgical generator through a patient isolation barrier, the system comprising:
- a control assembly disposed within a surgical hand piece configured to control the generator, the control assembly having at least one input device and at least one resistor assembly in electrical communication with a DC voltage source which supplies a control current, the at least one input device configured to adjust resistance of the at least one resistor assembly and voltage of the control current passing therethrough;
an isolation barrier transmitter having a voltage-to-frequency converter which converts the voltage passing through the resistor assembly into a corresponding frequency, the transmitter transmits the frequency across the patient isolation barrier;
an isolation barrier receiver configured to receive the frequency and to convert the frequency into a control signal; and
a microprocessor which processes the control signal and controls the generator based on the control signal.
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Accused Products
Abstract
Systems and methods for controlling an electrosurgical generator through a patient isolation barrier are disclosed. The system includes a control assembly disposed within a surgical hand piece configured to control the generator. The control assembly has one or more input devices and one ore more resistor assemblies in electrical communication with a DC voltage source which supplies a control current. The input devices are configured to adjust resistance of the resistor assemblies and voltage of the control current passing therethrough. The system also includes an isolation barrier transmitter having a voltage-to-frequency converter which converts the voltage passing through the resistor assembly into a corresponding frequency. The transmitter transmits the frequency across the patient isolation barrier. The system further includes an isolation barrier receiver configured to receive the frequency and to convert the frequency into a control signal and a microprocessor which processes the control signal and controls the generator based on the control signal.
183 Citations
17 Claims
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1. A system for controlling an electrosurgical generator through a patient isolation barrier, the system comprising:
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a control assembly disposed within a surgical hand piece configured to control the generator, the control assembly having at least one input device and at least one resistor assembly in electrical communication with a DC voltage source which supplies a control current, the at least one input device configured to adjust resistance of the at least one resistor assembly and voltage of the control current passing therethrough;
an isolation barrier transmitter having a voltage-to-frequency converter which converts the voltage passing through the resistor assembly into a corresponding frequency, the transmitter transmits the frequency across the patient isolation barrier;
an isolation barrier receiver configured to receive the frequency and to convert the frequency into a control signal; and
a microprocessor which processes the control signal and controls the generator based on the control signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for controlling an electrosurgical generator through a patient isolation barrier, comprising the steps of:
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activating at least one input device disposed within a surgical hand piece configured to control the generator, the hand piece having at least one corresponding resistor assembly in electrical communication with a DC voltage source which supplies a control current, the at least one input device configured to adjust resistance of the at least one resistor assembly and voltage of the control current passing therethrough;
converting the voltage into a corresponding frequency through a voltage-to-frequency converter;
transmitting the frequency across the patient isolation barrier transmitter;
converting the frequency into a control signal; and
transmitting the control signal to a microprocessor which is configured to control the generator based on the control signal. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An electrosurgical instrument comprising:
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a control assembly disposed within a surgical hand piece configured to control an electrosurgical generator, the control assembly having at least one input device and at least one resistor assembly in electrical communication with a DC voltage source which supplies a control current, the at least one input device configured to adjust resistance of the at least one resistor assembly and voltage of the control current passing therethrough;
an isolation barrier transmitter having a voltage-to-frequency converter which converts the voltage passing through the resistor assembly into a corresponding frequency, the transmitter transmits the frequency across the patient isolation barrier; and
an isolation barrier receiver configured to receive the frequency and to convert the frequency into a control signal readable by a microprocessor.
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Specification