Transducer for therapeutic ultrasound apparatus and method
AssigneeNovuson Surgical, Inc.
InventorsStuart B. Mitchell, Eric Hadford, Daniel Baker
Life of this patent
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Abstract
Various devices related to a therapeutic ultrasound device for use during a medical procedure to cauterize tissue are disclosed. The high intensity focused ultrasound device can include a transducer for producing high intensity focused ultrasound. The transducer includes a shell configured to receive an acoustic stack. The acoustic stack includes a piezoelectric layer, a matching layer, and a plurality of electrodes. The transducer includes an air-filled pocket formed between the inner surface of the shell and the piezoelectric layer of the acoustic stack, wherein the air-filled pocket is configured to ensure high efficiency of the transducer.
Claims10
A method for providing therapeutic ultrasound, the method comprising:
- applying a tissue engagement assembly to engage a target site with a clamp force, the tissue engagement assembly comprising
- a first jaw including a first shell holding a first acoustic stack, and
- a second jaw including a second shell holding a second acoustic stack,
- electrically isolating a first inner surface of the first shell from the first acoustic stack using a first lining;
- electrically isolating a second inner surface of the second shell from the second acoustic stack using a second lining;
- and
- generating an acoustic field between the first jaw and the second jaw for a period of time to deliver treatment to the target site, wherein the period of time is based on the clamp force and acoustic power.
Dependencies are inferred from the claim text.