Methods and systems for modulating medicants using acoustic energy

• US 9,907,942 B2
• Filed: 09/29/2015
• Issued: 03/06/2018
• Est. Priority Date: 05/07/2007
• Status: Active Grant

• Current Assignee: Guided Therapy Systems Llc
• Original Assignee: Guided Therapy Systems Llc
• Inventors: Slayton, Michael H., Barthe, Peter G.
• Primary Examiner(s): Sirmons, Kevin C
• Assistant Examiner(s): CARPENTER, WILLIAM R
• Application Number:
  US14/868,923
• Publication Number:
  US 20160015954A1
• Time in Patent Office: 889 Days
• CPC Class Codes: A61B 2090/378 using ultrasound
• CPC Class Codes: A61B 8/4281 characterised by sound-transmitting media or devices for coupling the transducer to the tissue
• CPC Class Codes: A61M 2037/0007 having means for enhancing the permeation of substances through the epidermis, e.g. using suction or depression, electric or magnetic fields, sound waves or chemical agents
• CPC Class Codes: A61M 2205/3375 Acoustical, e.g. ultrasonic, measuring means
• CPC Class Codes: A61M 37/0092 using ultrasonic, sonic or infrasonic vibrations, e.g. phonophoresis
• CPC Class Codes: A61N 2007/0008 Destruction of fat cells
• CPC Class Codes: A61N 2007/0043 intra-cavitary
• CPC Class Codes: A61N 2007/0056 Beam shaping elements
• CPC Class Codes: A61N 7/00 Ultrasound therapy lithotripsy A61B17/22, A61B17/225; massage using supersonic vibration A61H23/00 ; using ultrasound for introducing media into the body A61M37/0092
• CPC Class Codes: A61N 7/02 Localised ultrasound hyperthermia hyperthermia in general A61F7/00

Abstract

This invention provides methods and systems uniquely capable of enhancing medicant delivery and/or effectiveness through the use of energy to predictably disrupt membranes and mechanically and thermally modulate cells and tissues. In exemplary embodiments, the methods and systems disclosed herein are capable of modulating multiple layers of tissue. In an exemplary embodiment, the energy is acoustic energy (e.g., ultrasound). In other exemplary embodiments, the energy is photon based energy (e.g., IPL, LED, laser, white light, etc.), or other energy forms, such radio frequency electric currents, or various combinations of acoustic energy, electromagnetic energy and other energy forms or energy absorbers such as cooling. Medicants can be first introduced to the region of interest by diffusion, circulation, and/or injection. An exemplary system for enhancing medicant delivery and/or effectiveness comprises a control system, a probe, and a display or indicator system. Imaging and/or monitoring may alternatively be coupled and/or co-housed with an ultrasound system contemplated by the present invention.

Claims

1. A system for steering a medicant through a tissue, the tissue having a first region located at a first depth and a second region adjacent to the first region and located at a second depth, the system comprising:

a probe configured to output a first acoustic energy and a second acoustic energy; and

a control system coupled to the probe and having a control logic configured to control the output of acoustic energy from the probe, the probe and the control system configured to, in use when the medicant is present in the first region, focus the first acoustic energy from the source to the first region, the first acoustic energy having a first spatial and temporal energy profile configured to provide cavitation and radiation force, the cavitation and radiation force configured to move the medicant from the first region to the second region, the probe and the control system further configured to, in use when the medicant has moved from the first region to the second region, focus the second acoustic energy from the source to the second region, the second acoustic energy having a second spatial and temporal energy profile configured to enhance effectiveness of the medicant in the second region.

2. The system of claim 1, wherein the probe is further configured for ultrasound imaging, ultrasound monitoring, or a combination thereof.

3. The system of claim 1, wherein the probe is configured to output acoustic energy in a frequency range of 1 kHz to 500 MHz.

4. The system of claim 1, wherein the probe is configured to output acoustic energy in a frequency range of 200 kHz to 20 MHz.

5. The system of claim 1, wherein the medicant is a chemical naturally occurring within the body.

6. The system of claim 5, wherein the chemical is selected from the group consisting of a cell, an amino acid, a protein, an antibody, a mineral, and a vitamin.

7. The system of claim 1, wherein enhancing the effectiveness of the medical comprises increasing permeability or transparency of the medicant in the tissue with the second acoustic energy.

8. The system of claim 1, wherein enhancing the effectiveness of the medicant comprises creating a thermal effect in said tissue with said second acoustic energy.

9. A system for delivering a medicant to a region of interest within a tissue, the tissue having a first region located at a first depth, the region of interest located adjacent to the first region and at a second depth, the system comprising:

a probe configured to output a first acoustic energy and a second acoustic energy; and

a control system coupled to the probe and having a control logic configured to control the output of acoustic energy from the probe, the probe and the control system configured to, in use when a medicant is present in the first region, focus the first acoustic energy from the source to the first region, the first acoustic energy having a first spatial and temporal energy profile configured to provide cavitation and radiation force, the cavitation and radiation force configured to move the medicant from the first region to the second region, the probe and the control system further configured to, in use when the medicant has moved from the first region to the region of interest, focus the second acoustic energy from the source to the region of interest, the second acoustic energy having a second spatial and temporal energy profile configured to provide a thermal effect that enhances the effectiveness of the medicant in the region of interest.

10. The system of claim 9, wherein the probe is further configured for ultrasound imaging, ultrasound monitoring, or a combination thereof.

11. The system of claim 9, wherein the probe is configured to output acoustic energy in a frequency range of 1 kHz to 500 MHz.

12. The system of claim 9, wherein the probe is configured to output acoustic energy in a frequency range of 200 kHz to 20 MHz.

13. The system of claim 9, wherein the medicant is a chemical naturally occurring within the body.

14. The system of claim 13, wherein the chemical is selected from the group consisting of a cell, an amino acid, a protein, an antibody, a mineral, and a vitamin.

15. A system for delivering a medicant to a portion of skin beneath a stratum corneum, the system comprising:

a probe configured to output a first acoustic energy and a second acoustic energy; and

a control system coupled to the probe and having a control logic configured to control the output of acoustic energy from the probe, the probe and the control system configured to, in use when a medicant is present on a surface of the stratum corneum, focus the first acoustic energy from the source to a first depth beneath the stratum corneum, the first acoustic energy having a first spatial and temporal energy profile configured to provide a first cavitation and radiation force, the first cavitation and radiation force configured to deliver the medicant across the stratum corneum to the first depth beneath the stratum corneum, the probe and the control system further configured to, in use when the medicant has been delivered to the first depth beneath the stratum corneum, focus the second acoustic energy from the source to a second depth beneath the stratum corneum, the second acoustic energy having a second spatial and temporal energy profile configured to provide a second cavitation and radiation force, the second cavitation and radiation force configured to move the medicant from the first depth to the second depth, and wherein the second spatial and temporal energy profile is different from the first spatial and temporal enemy profile.

16. The system of claim 15, wherein the probe is further configured to output a third acoustic energy, the probe and the control system further configured to, in use when the medicant has been moved from the first depth beneath the stratum corneum to the second depth beneath the stratum corneum, focus the third acoustic energy from the source to the second depth beneath the stratum corneum, the third acoustic energy having a third spatial and temporal energy profile configured to activate the medicant.

17. The system of claim 16, wherein activating the medicant comprises creating a thermal effect in said tissue with said third acoustic energy from said source.

18. The system of claim 15, wherein the probe is further configured for ultrasound imaging, ultrasound monitoring, or a combination thereof.

19. The system of claim 15, wherein the probe is configured to output acoustic energy in a frequency range of 1 kHz to 500 MHz.

20. The system of claim 15, wherein the probe is configured to output acoustic energy in a frequency range of 200 kHz to 20 MHz.