Method and system for treating acne and sebaceous glands

• US 7,491,171 B2
• Filed: 10/07/2005
• Issued: 02/17/2009
• Est. Priority Date: 10/06/2004
• Status: Active Grant

• Current Assignee: Guided Therapy Systems Llc
• Original Assignee: Guided Therapy Systems Llc
• Inventors: Makin, Inder Raj S., Slayton, Michael H., Barthe, Peter G.
• Primary Examiner(s): Winakur; Eric F
• Assistant Examiner(s): Laryea; Lawrence N
• Application Number:
  US11/163,177
• Publication Number:
  US 20060089632A1
• Time in Patent Office: 1,229 Days
• Field of Search: 600/439, 600/437, 600/440, 601 2- 4, 607/88, 606/9, 606/10, 128/399, 604/22
• US Class Current: 600/439
• CPC Class Codes: A61B 2017/320069 for ablating tissue
• CPC Class Codes: A61B 5/682 Mouth, e.g., oral cavity; tongue; Lips; Teeth
• CPC Class Codes: A61B 5/6842 by marking the skin
• CPC Class Codes: A61B 8/08 Detecting organic movements or changes, e.g. tumours, cysts, swellings A61B8/02 - A61B8/06 take precedence
• CPC Class Codes: A61B 8/0858 involving measuring tissue layers, e.g. skin, interfaces
• CPC Class Codes: A61B 8/12 in body cavities or body tracts, e.g. by using catheters catheters per se A61M25/00
• CPC Class Codes: A61B 8/13 Tomography A61B8/10, A61B8/12 take precedence; tomography for radiation diagnosis A61B6/02
• CPC Class Codes: A61B 8/4209 by using holders, e.g. positioning frames
• CPC Class Codes: A61B 8/4281 characterised by sound-transmitting media or devices for coupling the transducer to the tissue
• CPC Class Codes: A61B 8/4455 Features of the external shape of the probe, e.g. ergonomic aspects
• CPC Class Codes: A61B 8/4483 characterised by features of the ultrasound transducer
• CPC Class Codes: A61B 8/461 Displaying means of special interest
• CPC Class Codes: A61B 8/483 involving the acquisition of a 3D volume of data
• CPC Class Codes: A61B 8/546 involving monitoring or regulation of device temperature
• CPC Class Codes: A61H 2201/5007 computer controlled
• CPC Class Codes: A61H 23/0245 with ultrasonic transducers, e.g. piezoelectric
• CPC Class Codes: A61N 2007/0008 Destruction of fat cells
• CPC Class Codes: A61N 2007/0034 Skin treatment
• CPC Class Codes: A61N 2007/0052 using the same transducer for therapy and imaging
• CPC Class Codes: A61N 2007/027 with multiple foci created simultaneously
• 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
• CPC Class Codes: G01S 15/8909 : using a static transducer configuration

Abstract

A method and system for ultrasound treatment of acne and sebaceous glands are provided. An exemplary method and system are configured for targeted treatment of sebaceous glands in various manners, such as through use of therapy only, therapy and monitoring, imaging and therapy, or therapy, imaging, and monitoring, and/or through use of focused, unfocused, or defocused ultrasound at various spatial and temporal energy settings. An exemplary method and system can be configured to produce regions of heating and damage by destroying the function of sebaceous glands within a user-specified treatment layer depth associated with the glands to be treated. In addition, an exemplary method and system can be configured to produce regions of heating and damage within the treatment layer in spatially defined patterns, rather than heating and destroying the entire volume of the target layer of tissue. Further, an exemplary method and system can be configured to specifically aim such regions of heating and damage within the treatment layer, to occur at the same location as the secretory portion of sebaceous glands.

Claims

1. A method for providing treatment of acne and sebaceous glands, said method comprising:

localizing at least one targeted region within a region of interest, said localizing configured for identifying at least one sebaceous gland;

targeting delivery of ablative ultrasound energy from a transducer probe to said at least one sebaceous gland at a depth of about 1 to about 7 mm; and

monitoring results of said targeted delivery within said at least one sebaceous gland during and after said targeted delivery to continue planning of treatment.

2. The method of claim 1, wherein said localizing at least one targeted region comprises imaging a region of interest to identify said at least one sebaceous gland.

3. The method of claim 1, said targeting of delivery of ablative ultrasound energy comprises destroying the function of said sebaceous gland within a specified treatment depth identified through localization of said sebaceous gland.

4. The method of claim 1, wherein said targeting of delivery of ablative ultrasound comprises adjustable control of spatial parameters and temporal parameters of said transducer probe to generate conformal lesions of specifically targeted shapes, sizes and orientations.

5. The method of claim 1, wherein said targeting delivery of ablative ultrasound comprises producing said treatment regions in spatially defined patterns to facilitate healing of tissue.

6. The method according to claim 5, wherein said producing said treatment regions in spatially defined patterns comprises producing a discrete locus of spaced lesions comprising at least one of cross-stitch, cigar-shaped, or wedge-shaped lesions.

7. The method of claim 1, wherein said monitoring results comprises measurement of results of treatment of said at least one sebaceous gland as visualized during and after said target delivery of ablative ultrasound.

8. The method of claim 1, wherein said monitoring results comprises monitoring the temperature profile of said targeted region.

9. The method of claim 1, wherein said targeted of delivery of ablative ultrasound comprises producing of a matrix of spaced treatment spots comprising at least one of two-dimensional and three-dimensional matrix of lesions along a scanned pattern created by scanning of said transducer probe.

10. The method according to claim 5, wherein said producing said treatment regions in spatially defined patterns comprises producing a discrete locus of spaced conformal lesions based on control of spatial and temporal parameters.

11. The method according to claim 1, wherein said localizing at least one targeted region comprises generating three-dimensional imaging information and said targeting comprises treating three-dimensional treatment region.

12. The method according to claim 1, wherein said targeting of delivery further comprises cooling through any tissue regions between and including skin and said at least one sebaceous gland to facilitate treatment.

13. A method for providing treatment of acne and sebaceous glands, said method comprising:

localizing at least one targeted region for identifying at least one sebaceous gland;

targeting delivery of ablative ultrasound energy from a transducer probe to said at least one sebaceous gland at a specified treatment depth of about 1 to about 7 mm for destroying any function of said at least one sebaceous gland within said specified treatment depth, wherein said targeting of delivery comprises delivery of ablative ultrasound energy in spatially defined patterns producing a discrete locus of spaced lesions comprising at least one of a cross-stitch, a cigar-shaped, and a wedge-shaped lesion; and

monitoring results of said targeted delivery within said at least one sebaceous gland during and after said targeted delivery to continue planning of treatment.

14. The method of claim 13, further comprising producing spatially defined patterns in said at least one targeted region to facilitate healing of tissue.

15. The method according to claim 14, wherein said producing said spatially defined patterns in said at least one targeted region further comprises producing a discrete locus of spaced conformal lesions based on control of spatial and temporal parameters.

16. The method according to claim 13, further comprising generating three-dimensional imaging information of said least one sebaceous gland.

17. The method according to claim 16, further comprising treating a three-dimensional treatment region as defined by said three-dimensional imaging information of said least one sebaceous gland.

18. A method of providing a treatment for acne by a reduction in function of pilosebaceous glands, the method comprising:

imaging a treatment area below a skin surface, said treatment area comprising at least portion of said pilosebaceous gland;

identifying at least portion of said pilosebaceous gland in said treatment area;

delivering ultrasound energy to said at least portion of said pilosebaceous gland;

coagulating said least a portion of said pilosebaceous gland; and

monitoring said pilosebaceous gland for a reduction in function;

thereby reducing an appearance of acne on said skin surface.

19. The method of claim 18 further comprising producing spatially defined patterns in said treatment area to facilitate healing of tissue.

20. The method according to claim 19, wherein said producing spatially defined patterns in said treatment area comprises producing a discrete locus of spaced conformal lesions based on control of spatial and temporal parameters.

21. The method according to claim 19, wherein said producing spatially defined patterns in said treatment area comprises producing a discrete locus of spaced lesions comprising at least one of cross-stitch, cigar-shaped, or wedge-shaped lesions.

22. The method of claim 18, wherein said delivering ultrasound energy to said at least portion of said pilosebaceous gland further comprises adjustably controlling of spatial parameters and temporal parameters of a transducer probe to generate conformal lesions of specifically targeted shapes, sizes and orientations.

23. The method of claim 18, further comprising producing of a matrix of spaced treatment spots comprising at least one of two-dimensional and three-dimensional matrix of lesions.

24. The method according to claim 18, further comprising generating three-dimensional imaging information comprising generating three-dimensional imaging information of said least one sebaceous gland.

25. The method according to claim 18 further comprising treating a three-dimensional treatment region as defined by said three-dimensional imaging information of said least one sebaceous gland.