Electrosurgical generator with improved circuitry for generating RF drive pulse trains
First Claim
1. An electrosurgical generator comprisinga patient circuit including an active electrode and a return electrode;
- means for generating a pulse train includingat least one MxN storage device having M memory locations where M>
1 and where each location contains N storage positions where N≦
1, said storage device storing at least one, K-bit binary signal, where 1<
K≦
M, the bits of which are respectively stored in the Jth storage positions of K of the M memory locations where J≦
N;
means for sequentially outputting said K-bit binary signal from said storage device; and
electrosurgical signal generating means sequentially responsive to the sequentially outputted bits of the K-bit binary signal for generating an electrosurgical signal and applying this signal to the patient circuit.
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Accused Products
Abstract
An electrosurgical generator including a patient circuit including an active electrode and a return electrode; a pulse train generating circuit an M×N storage device having M memory locations where M>1 and where each location contains N storage positions where N≧1, the storage device storing at least one, K-bit binary signal, where 1<K≦M, the bits of which are respectively stored in the Jth storage positions of K of the M memory locations where J≦N; an output circuit for sequentially outputting the K-bit binary signal from the storage device; the electrosurgical generator being sequentially responsive to the sequentially outputted bits of the K-bit binary signal for generating an electrosurgical signal and applying this signal to the patient circuit. The storage device may take the form of one or more shift registers or EPROM'"'"'s for example.
185 Citations
28 Claims
-
1. An electrosurgical generator comprising
a patient circuit including an active electrode and a return electrode; means for generating a pulse train including at least one MxN storage device having M memory locations where M>
1 and where each location contains N storage positions where N≦
1, said storage device storing at least one, K-bit binary signal, where 1<
K≦
M, the bits of which are respectively stored in the Jth storage positions of K of the M memory locations where J≦
N;means for sequentially outputting said K-bit binary signal from said storage device; and electrosurgical signal generating means sequentially responsive to the sequentially outputted bits of the K-bit binary signal for generating an electrosurgical signal and applying this signal to the patient circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
Specification