Dual antenna microwave resection and ablation device, system and method of use

摘要

A system for generating microwave energy includes a microwave generator that generates first and second microwave signals, a transmission line and a dual antenna microwave device. The transmission line transmits the first and second microwave signals to the microwave device. The microwave device includes a first antenna proximal a second antenna and a dual-sided choke positioned therebetween. The first antenna receives the first microwave signal from the transmission line between a first conductor and a second conductor and the second antenna receives the second microwave signal between the second conductor and a third conductor. The dual-sided choke includes a first and a second antenna choke circuit. The first antenna choke circuit limits the propagation of electromagnetic fields generated by the first antenna toward the second antenna and the second antenna choke circuit limits the propagation of electromagnetic fields generated by the second antenna toward the first antenna.

主权项

1. An electrsurgical system for generating microwave energy, the system comprising:
a microwave generator configured to generate a first microwave frequency signal and a second microwave signal; a transmission line configured to transmit the first and the second microwave frequency signals; a dual antenna microwave device including:
a first antenna configured to receive the first microwave frequency signal from the transmission line between a first conductor and a second conductor;a second antenna, distal of the first antenna, configured to receive the second microwave frequency signal from the transmission line between the second conductor and a third conductor; anda dual-sided choke, positioned between the first antenna and the second antenna, the dual-sided choke including a choke conductor including a first antenna choke circuit and a second antenna choke circuit, wherein the first antenna choke circuit is configured to limit the propagation of electromagnetic fields generated by the first antenna toward the second antenna and the second antenna choke circuit is configured to limit the propagation of electromagnetic fields generated by the second antenna toward the first antenna.