IP Library › Granted Patent US 12,533,532
Granted Patent B2
US 12,533,532 · App. 17/794,908 · Granted Jan 27, 2026

Image-guided pulsed volume focused ultrasound

Inventor: Everette C. Burdette (Champaign, IL)
Assignee: ACOUSTIC MEDSYSTEMS, INC.
A61N7/00A61B8/4444A61B8/4488A61B8/546A61N7/02A61N2007/0034A61N2007/0078
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Quick Facts
Patent No.
US 12,533,532
App. No.
17/794,908
Granted
Jan 27, 2026
Kind
B2
Abstract

An apparatus comprises a source of ultrasound energy comprising a plurality of ultrasound transducers. Each of the plurality of ultrasound transducers is configured to direct ultrasound energy to a treatment region located at a depth below a skin surface associated with a patient. The apparatus further comprises a control system for controlling power to the plurality of ultrasound transducers and a water circulation system for controlling a temperature associated with the plurality of ultrasound transducers. The apparatus further comprises an imaging transducer for spatially registering the location of the treatment region.

Claims (40)

1 . An apparatus, comprising:

a handle coupled to a main body, the main body including a plurality of chambers;

an imaging transducer array coupled to the main body;

an imaging probe disposed within the handle and extending through the main body to the imaging transducer array, the imaging probe configured to interface with an opening in the main body; and

a therapy transducer array comprising a plurality of air backed transducers disposed within the main body, each of the plurality of air backed transducers configured to direct energies from low-intensity focused ultrasound to a treatment region, the imaging transducer array and the therapy transducer array configured to spatially register a location of the treatment region, the treatment region located at a depth below a surface associated with a patient, the therapy transducer array arranged about the opening and the imaging probe such that an imaging plane formed by the imaging probe intersects with the treatment region;

a control system configured to control power to the plurality of air backed transducers; and

a water circulation system circulating water through the main body, controlling a temperature associated with the therapy transducer array and configured to cool an interface between the surface and the apparatus.

2 . The apparatus of claim 1 , wherein the water circulation system comprises a chamber positioned between the therapy transducer array and the treatment region.

3 . The apparatus of claim 1 , further comprising an air chamber behind the therapy transducer array for maximizing acoustic power delivery to the treatment region.

4 . The apparatus of claim 3 , wherein the air chamber is positioned between the therapy transducer array and the handle.

5 . The apparatus of claim 1 , wherein the imaging transducer array has an electronic focal zone between 3 cm and 10 cm, inclusive.

6 . The apparatus of claim 5 , wherein the imaging transducer array comprises a focal depth corresponding to the depth of the treatment region.

7 . The apparatus of claim 1 , wherein at least one air backed transducer of the therapy transducer array operates on a different frequency than the rest of the therapy transducer array.

8 . The apparatus of claim 1 , wherein each air backed transducer of the therapy transducer array operates on a same frequency.

9 . An apparatus, comprising:

a handle coupled with a source of energy;

a main body coupled to the handle, comprising:

a bottom portion having a bottom surface configured to interface with a surface associated with a patient; and

a top portion having a first recess and a second recess, the second recess located substantially central within the main body, the first recess configured to engage with the handle;

an imaging transducer forming an imaging plane disposed within the main body and interfacing with the second recess;

a plurality of ultrasound transducers disposed within the main body about the second recess and the imaging transducer, each of the plurality of ultrasound transducers configured to direct energies from low-intensity focused ultrasound to a treatment region, the imaging transducer and the plurality of ultrasound transducers configured to spatially register a location of the treatment region located at a depth below the surface, the plurality of ultrasound transducers configured such that a focus of the imaging plane intersects with the treatment region;

a first support structure disposed between the top portion and the bottom portion and positioned on a first side of the imaging transducer, the first support structure configured to engage with a first group of the plurality of ultrasound transducers; and

a chamber formed by the first support structure, the chamber within the main body proximate the bottom surface of the bottom portion, the chamber configured to facilitate water circulation within the main body to cool the plurality of ultrasound transducers and an interface between the bottom surface and the surface.

10 . The apparatus of claim 9 , wherein the second recess extends entirely through the bottom surface.

11 . The apparatus of claim 9 , further comprising a second support structure disposed between the top portion and the bottom portion and positioned on a second side of the imaging transducer, the second side opposite the first side, the second support structure configured to engage with a second group of the plurality of ultrasound transducers.

12 . The apparatus of claim 11 , wherein the first group of the plurality of ultrasound transducers and the second group of the plurality of ultrasound transducers are arranged in a substantially linear configuration about the imaging transducer.

13 . The apparatus of claim 11 , wherein the first group of the plurality of ultrasound transducers and the second group of the plurality of ultrasound transducers are arranged in a substantially square configuration about the imaging transducer.

14 . The apparatus of claim 11 , wherein the first group of the plurality of ultrasound transducers comprises a first portion of ultrasound transducers arranged in a substantially square configuration and a second portion of ultrasound transducers arranged at an oblique angle to the imaging transducer, wherein the second group of the plurality of ultrasound transducers comprises a third portion of ultrasound transducers arranged in a substantially square configuration and a fourth portion of ultrasound transducers arranged at an oblique angle to the imaging transducer.

15 . The apparatus of claim 11 , wherein the imaging transducer comprises a first dimension with a first value and a second dimension with a second value that is smaller than the first value, and wherein an arrangement of the first group of the plurality of ultrasound transducers extends beyond the first dimension.

16 . The apparatus of claim 9 , wherein the first support structure comprises a curve configured to direct the energies from low-intensity focused ultrasound to the treatment region.

17 . An apparatus configured to deliver ultrasound energy to a treatment site of a patient, comprising:

a main body comprising:

a bottom portion having a bottom surface configured to interface with a surface associated with the patient; and

a top portion having a recess located in a central portion of the main body;

an imaging transducer forming an imaging plane, the imaging transducer engaged with the recess;

a plurality of ultrasound transducers arranged about the imaging transducer and positioned within the main body, each of the plurality of ultrasound transducers configured to direct energies from low-intensity focused ultrasound to a treatment site, the imaging transducer and the plurality of ultrasound transducers configured to spatially register a location of the treatment region located at a depth below the surface, the plurality of ultrasound transducers configured such that a focus of the imaging plane intersects with the treatment site; and

a support structure disposed between the top portion and the bottom portion and positioned on a side of the imaging transducer, the support structure configured to engage with the plurality of ultrasound transducers, the support structure configured to form a chamber within the main body, the chamber proximate to the bottom surface of the bottom portion.

18 . The apparatus of claim 17 , wherein the plurality of ultrasound transducers comprise sectored lead zirconate titanate crystals.

19 . The apparatus of claim 18 , further comprising air positioned behind the sectored lead zirconate titanate crystals, the air maximizing an acoustic power delivered to the treatment site.

20 . The apparatus of claim 18 , further comprising water in fluid communication with the bottom surface for maximizing acoustic power transmission into the patient for delivery to the treatment site.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 23, 2025
From: BURDETTE, EVERETTE C.
To: ACOUSTIC MEDSYSTEMS, INC.
Reel/Frame 073305/0946 →
Continuity (2)
Provisional Application 62965109 · Jan 23, 2020
Related Publication 20230095465A1 · Mar 30, 2023
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