SURGICAL GENERATOR FOR ULTRASONIC AND ELECTROSURGICAL DEVICES
First Claim
1. A surgical generator for providing a drive signal to a surgical device, the generator comprising:
- a first transformer comprising a first primary winding and a first secondary winding;
a second transformer comprising a second primary winding and a second secondary winding;
a generator circuit to generate the drive signal, wherein the generator circuit is electrically coupled to the first primary winding to provide the drive signal across the first primary winding;
a patient-side circuit electrically isolated from the generator circuit, wherein the patient-side circuit is electrically coupled to the first secondary winding, and wherein the patient-side circuit comprises first and second output lines to provide the drive signal to the surgical device; and
a capacitor, wherein the capacitor and the second secondary winding are electrically coupled in series between the first output line and ground.
3 Assignments
0 Petitions
Accused Products
Abstract
In accordance with various embodiments, a surgical generator for providing a drive signal to a surgical device may comprise a first transformer and a second transformer. The first transformer may comprise a first primary winding and a first secondary winding. The second transformer may comprise a second primary winding and a second secondary winding. The surgical generator may further comprise a generator circuit to generate the drive signal. The generator circuit may be electrically coupled to the first primary winding to provide the drive signal across the first primary winding. The surgical generator may also comprise a patient-side circuit electrically isolated from the generator circuit. The patient-side circuit may be electrically coupled to the first secondary winding. Further, the patient-side circuit may comprise first and second output lines to provide the drive signal to the surgical device. In addition, the surgical generator may comprise a capacitor. The capacitor and the second secondary winding may be electrically coupled in series between the first output line and ground.
259 Citations
23 Claims
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1. A surgical generator for providing a drive signal to a surgical device, the generator comprising:
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a first transformer comprising a first primary winding and a first secondary winding; a second transformer comprising a second primary winding and a second secondary winding; a generator circuit to generate the drive signal, wherein the generator circuit is electrically coupled to the first primary winding to provide the drive signal across the first primary winding; a patient-side circuit electrically isolated from the generator circuit, wherein the patient-side circuit is electrically coupled to the first secondary winding, and wherein the patient-side circuit comprises first and second output lines to provide the drive signal to the surgical device; and a capacitor, wherein the capacitor and the second secondary winding are electrically coupled in series between the first output line and ground. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A surgical generator for providing a drive signal to a surgical device, the generator comprising:
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a first transformer comprising a primary winding, a first secondary winding, and a second secondary winding, wherein a polarity of the first secondary winding relative to the primary winding is opposite the polarity of the second secondary winding; a generator circuit to generate the drive signal, wherein the generator circuit is electrically coupled to the first primary winding to provide the drive signal across the first primary winding; a patient-side circuit electrically isolated from the generator circuit, wherein the patient-side circuit is electrically coupled to the first secondary winding, and wherein the patient-side circuit comprises first and second output lines to provide the drive signal to the surgical device; and a capacitor, wherein the capacitor and second secondary winding are electrically coupled in series between the first output line and ground. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A surgical generator for providing a drive signal to a surgical device, the generator comprising:
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a first transformer comprising a primary winding and a secondary winding; a generator circuit to generate the drive signal, wherein the generator circuit is electrically coupled to the first primary winding to provide the drive signal across the first primary winding; a patient-side circuit electrically isolated from the generator circuit, wherein the patient-side circuit is electrically coupled to the secondary winding, and wherein the patient-side circuit comprises first and second output lines to provide the drive signal to the surgical device; a capacitor, wherein the capacitor and is electrically coupled to the primary winding and electrically coupled to the first output line. - View Dependent Claims (21)
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22. A surgical generator for providing a drive signal to a surgical device, the generator comprising:
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a first transformer comprising a primary winding and a secondary winding; a generator circuit to generate the drive signal, wherein the generator circuit is electrically coupled to the first primary winding to provide the drive signal across the first primary winding; a patient-side circuit electrically isolated from the generator circuit, wherein the patient-side circuit is electrically coupled to the secondary winding, and wherein the patient-side circuit comprises first and second output lines to provide the drive signal to the surgical device; a first capacitor, wherein a first electrode of the first capacitor and is electrically coupled to the primary winding; a second capacitor, wherein a first electrode of the second capacitor is electrically coupled to the first output line and a second electrode of the second capacitor is electrically coupled to a second electrode of the first capacitor; a third capacitor, wherein the a first electrode of the third capacitor is electrically coupled to the second electrode of the first capacitor and the second electrode of the second capacitor, and wherein a second electrode of the third capacitor is electrically coupled to ground. - View Dependent Claims (23)
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Specification