Apparatus and methods of use for treating blood vessels

摘要

An electrosurgical apparatus is provided. The electrosurgical apparatus includes a cannula insertable into a patient and positionable adjacent abnormal tissue. The electrosurgical apparatus includes a microwave antenna that includes a distal end having a radiating section receivable within the cannula and positionable within a patient adjacent abnormal tissue. The microwave antenna is adapted to connect to a source of electrosurgical energy for transmitting electrosurgical energy to the radiating section. A portion of the radiating section substantially encompasses a portion of the abnormal tissue and may be configured to apply pressure thereto. The microwave antenna is actuated to electrocautery treat tissue to reduce blood flow to the abnormal tissue.

主权项

1. An electrosurgical apparatus, comprising:
a cannula; a microwave antenna including a distal end having a radiating section movably disposed within the cannula and positionable within a patient adjacent abnormal tissue, the microwave antenna adapted to connect to a source of electrosurgical energy for transmitting electrosurgical energy to the radiating section to both treat tissue and to transition the radiating section from a first state having a longitudinal configuration to a second state having a looped configuration; and a sensor associated with the radiating section configured to monitor an electrical control parameter associated with the radiating section, the electrical control parameter selected from the group consisting of impedance, power, current, and voltage, wherein the radiating section is configured to remain in the first state while positioned adjacent abnormal tissue until the electrosurgical energy is transmitted to the radiating section to controllably transition the radiating section to the second state.