Granted Patent B2

US 12,605,180 · App. 18/436,768 · Granted Apr 21, 2026

Inventors: Stuart B. Mitchell (Bothell, WA); Eric Hadford (Bothell, WA); Daniel Baker (Bothell, WA)

A61B17/320092A61B17/295A61N7/02A61N7/022B06B1/0622A61B2017/2825A61B2017/2926A61B2017/2929A61B2017/2936A61B2017/320069A61B2017/320094A61B2017/320095A61N2007/0056A61N2007/0073B06B1/0611

Abstract

Claims (16)

1 . 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.

2 . The method of claim 1 , wherein the treatment is at least one of sealing or cutting tissue at the target site.

3 . The method of claim 1 , wherein the acoustic field produces ultrasound waves with a wavelength between about 0.15 mm to 1.5 mm, and a frequency between about 1 MHz and 10 MHz.

4 . The method of claim 1 , wherein the acoustic field is generated by applying electrical power to the first acoustic stack and the second acoustic stack.

5 . The method of claim 4 , wherein the electrical power is produced by a radiofrequency signal generator.

6 . The method of claim 4 , wherein the electrical power is between about 10 W to 200 W.

7 . The method of claim 1 , wherein the acoustic field provides an acoustic power of approximately 200 Watts to the target site.

8 . The method of claim 1 , wherein the first acoustic stack includes a first matching layer and a first acoustic wave generating layer, and wherein the second acoustic stack includes a second matching layer and a second acoustic wave generating layer.

9 . The method of claim 8 , wherein the first acoustic wave generating layer is a first piezoelectric transducer (PZT), and wherein the second acoustic wave generating layer is a second PZT.

10 . The method of claim 1 , wherein the first jaw includes a first air-filled pocket, and wherein the second jaw includes a second air-filled pocket.

Assignments (1)

Continuity (4)

References Cited (199)