Thermal penetration and arc length controllable electrosurgical pencil
First Claim
Patent Images
1. An electrosurgical pencil, comprising:
- a housing having an electrocautery electrode supported therein and extending distally therefrom, the electrocautery electrode adapted to connect to a source of electrosurgical energy;
at least one voltage divider network electrically connected to the source of electrosurgical energy for controlling a frequency, a mode, and an intensity of the electrosurgical energy delivered to the electrocautery electrode;
a plurality of activation switches supported on the housing, each activation switch configured to activate the mode of the electrosurgical energy produced by the source of electrosurgical energy; and
a controller supported on the housing and operably coupled to the voltage divider network, the controller disposed in operative communication with at least one of the plurality of activation switches, the controller configured to adjust and vary the frequency of the electrosurgical energy delivered to the electrocautery electrode for the mode of the electrosurgical energy activated by at least one of the plurality of activation switches, the voltage divider network configured to store a previous operative frequency setting for each mode and to set the frequency of the electrosurgical energy to the stored previous operative frequency setting when a mode corresponding to the stored previous operative frequency setting is activated.
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Abstract
An electrosurgical pencil is provided, which includes an elongated housing, an electrocautery electrode supported within the housing and extending distally from the housing. The electrocautery electrode is connected to a source of electrosurgical energy. The pencil also includes at least one voltage divider network supported on the housing and electrically connected to the source of electrosurgical energy for controlling intensity, frequency, and/or mode of electrosurgical energy being delivered to the electrocautery electrode.
450 Citations
17 Claims
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1. An electrosurgical pencil, comprising:
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a housing having an electrocautery electrode supported therein and extending distally therefrom, the electrocautery electrode adapted to connect to a source of electrosurgical energy; at least one voltage divider network electrically connected to the source of electrosurgical energy for controlling a frequency, a mode, and an intensity of the electrosurgical energy delivered to the electrocautery electrode; a plurality of activation switches supported on the housing, each activation switch configured to activate the mode of the electrosurgical energy produced by the source of electrosurgical energy; and a controller supported on the housing and operably coupled to the voltage divider network, the controller disposed in operative communication with at least one of the plurality of activation switches, the controller configured to adjust and vary the frequency of the electrosurgical energy delivered to the electrocautery electrode for the mode of the electrosurgical energy activated by at least one of the plurality of activation switches, the voltage divider network configured to store a previous operative frequency setting for each mode and to set the frequency of the electrosurgical energy to the stored previous operative frequency setting when a mode corresponding to the stored previous operative frequency setting is activated. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An electrosurgical pencil, comprising:
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a housing having an electrocautery electrode supported therein and extending distally therefrom, the electrocautery electrode adapted to connect to a source of electrosurgical energy; at least one voltage divider network electrically connected to the source of electrosurgical energy for controlling a frequency, a mode, and an intensity of the electrosurgical energy delivered to the electrocautery electrode; a plurality of activation switches supported on the housing, each activation switch configured to activate the mode of the electrosurgical energy produced by the source of electrosurgical energy; and a dial supported on the housing and operably coupled to the voltage divider network, the dial configured to adjust and vary the frequency of the electrosurgical energy delivered to the electrocautery electrode for the particular mode of the electrosurgical energy activated by at least one of the plurality of activation switches, the voltage divider network configured to store a previous operative frequency setting for each mode and to set the frequency of the electrosurgical energy to the stored previous operative frequency setting when a mode corresponding to the stored previous operative frequency setting is activated. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. An electrosurgical pencil, comprising:
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a housing having an electrocautery electrode supported therein and extending distally therefrom, the electrocautery electrode adapted to connect to a source of electrosurgical energy; at least one voltage divider network electrically connected to the source of electrosurgical energy for controlling a frequency, a mode, and an intensity of the electrosurgical energy delivered to the electrocautery electrode; and at least one dual function dial supported on the housing and operably coupled to the voltage divider network, the dial selectively engagable with the voltage divider network to select the mode of the electrosurgical energy delivered to the electrocautery electrode and rotatable to adjust and vary the frequency of the electrosurgical energy delivered to the electrocautery electrode, the frequency of the electrosurgical energy for the selected particular mode being controlled by rotation of the dial, the voltage divider network configured to store a previous operative frequency setting for each mode and to set the frequency of the electrosurgical energy to the stored previous operative frequency setting when a mode corresponding to the stored previous operative frequency setting is activated. - View Dependent Claims (17)
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Specification