Method and system for ultrasound treatment with a multi-directional transducer

• US 9,114,247 B2
• Filed: 11/10/2011
• Issued: 08/25/2015
• Est. Priority Date: 09/16/2004
• Status: Active Grant

• Current Assignee: Guided Therapy Systems Llc
• Original Assignee: Guided Therapy Systems Llc
• Inventors: Barthe, Peter G., Slayton, Michael H.
• Primary Examiner(s): Roy, Baisakhi
• Application Number:
  US13/294,004
• Publication Number:
  US 20120059288A1
• Time in Patent Office: 1,384 Days
• Field of Search: 600/437, 600/439, 601/2
• US Class Current: 1/1
• CPC Class Codes: A61B 2017/00084 Temperature
• CPC Class Codes: A61B 2090/378 using ultrasound
• CPC Class Codes: A61B 8/4272 involving the acoustic interface between the transducer and the tissue
• CPC Class Codes: A61N 2007/0078 with multiple treatment transducers
• CPC Class Codes: A61N 7/022 intracavitary

Abstract

A method and system for ultrasound treatment utilizing a multi-directional transducer to facilitate treatment, such as therapy and/or imaging or other tissue parameter monitoring, in two or more directions. In accordance with an exemplary embodiment, a multi-directional transducer comprises at least two transduction elements configured to provide for ultrasound energy, such as radiation, acoustical energy, heat energy, imaging, positional information and/or tissue parameter monitoring signals in two or more directions. The transduction elements can comprise various materials for providing ultrasound energy or radiation, such as piezoelectric materials, with and without matching layers. In addition, the transduction elements can be configured for substantially uniform, focused and/or defocused radiation patterns, as well as for single, multiple-element and/or multiple-element array configurations. In addition, an exemplary multi-directional transducer can comprise multiple elements, either side by side, stacked or in an array.

Claims

1. A multi-directional transducer for facilitating treatment in the at least two regions of interest, comprising:

a transduction element comprising;

a first firing face radiating ultrasound energy to provide a first radiation pattern in a first direction and a second firing face radiating ultrasound energy to provide a second radiation pattern in a second direction; and

a third firing face radiating ultrasound energy to provide a third radiation pattern in a third direction and a fourth firing face radiating ultrasound energy to provide a fourth radiation pattern in a fourth direction;

wherein the first firing face, the second firing face, the third firing face, and the fourth firing face are configured to generate the ultrasound energy simultaneously, wherein the first direction, the second direction, the third direction, and the fourth direction are different directions, and wherein two of the first direction, the second direction, the third direction, and the fourth direction are oblique relative to one another.

2. The multi-directional transducer according to claim 1, further comprising, a hand-held probe containing the transduction element.

3. The multi-directional transducer according to claim 1 further comprising a coupling apparatus operable to couple the transduction element with at least two regions of interest.

4. The multi-directional transducer according to claim 1, wherein the first firing face and the second firing face comprise a flat surface and are respectively coupled to a first lens and a second lens.

5. The multi-directional transducer according to claim 1, wherein the third firing face and the fourth firing face comprise a flat surface and are respectively coupled to a first lens and a second lens.

6. The multi-directional transducer according to claim 1, wherein the ultrasound energy is in the same phase.

7. The multi-directional transducer according to claim 1, wherein the transducer element comprises a single lead zirconate titanate crystal.

8. The multi-directional transducer according to claim 1, wherein a cross-section of the transducer element is a rhombus.

9. The multi-directional transducer according to claim 1, wherein the ultrasound energy is generated in a plane wave pattern.

10. The multi-directional transducer according to claim 1, wherein the first firing face, the second firing face, the third tiring face, and the fourth firing face are shaped and configure to generate the ultrasound energy in a focused pattern.

11. A multi-directional transducer array comprising a plurality of the multi-directional transducer according to claim 1.

12. A multi-directional transducer for facilitating treatment in the at least two regions of interest, comprising:

a transduction element comprising;

a first firing face radiating ultrasound energy to provide a first radiation pattern and a second firing face radiating ultrasound energy to provide a second radiation pattern;

wherein the first firing face and the second firing face are configured to generate ultrasound energy simultaneously in at least two directions; and

a third firing face radiating ultrasound energy to provide a third radiation pattern and a fourth firing face radiating ultrasound energy to provide a fourth radiation pattern;

wherein the third firing face and the fourth firing face are configured to generate ultrasound energy simultaneously in at least two directions, wherein the first firing face, the second firing face, the third firing face and the fourth firing face are configured to generate the ultrasound energy simultaneously, and wherein a cross-section perpendicular to the first firing face, the second firing face, the third firing face, or the fourth firing face of the transduction element is a rhombus.

13. The multi-directional transducer according to claim 12, wherein the first firing face, the second firing face, the third firing face, and the fourth firing face are configured to generate the ultrasound energy in four different directions.

14. The multi-directional transducer according to claim 12, further comprising a hand-held probe containing the transduction element.

15. The multi-directional transducer according to claim 12, further comprising a coupling apparatus operable to couple the transduction element with at least two regions of interest.

16. The multi-directional transducer according to claim 12, wherein the first firing face and the second firing face comprise a flat surface and are respectively coupled to a first lens and a second lens.

17. The multi-directional transducer according to claim 12, wherein the third firing face and the fourth firing face comprises a flat surface and are respectively coupled to a first lens and a second lens.

18. The multi-directional transducer according to claim 12, wherein the ultrasound energy is the same phase.

19. The multi-directional transducer according to claim 12, wherein the transducer element

comprises a single lead zirconate titanate crystal.

20. The multi-directional transducer according to claim 12, wherein the ultrasound energy is generated in a plane wave pattern.

21. The multi-directional transducer according to claim 12, wherein the first firing face, the second firing face, the third firing face, and the fourth firing face are shaped and configured to generate the ultrasound energy in a focused pattern.

22. A multi-directional transducer array comprising a plurality of the multi-directional transducer according to claim 12.