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Method and Apparatus for Treatment of Adipose Tissue

a technology for adipose tissue and treatment methods, applied in the field of adipose tissue reduction methods and apparatuses, can solve the problems of shock waves and fluid jets that can destroy cells, the method of cell rupturing is not selective for adipose tissue cells, and the subsequent healing process is very long and painful, so as to facilitate the production of high power densities, reduce the strength of the effect of the effect of the muscl

Inactive Publication Date: 2009-09-03
SYNERON MEDICAL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present invention provides methods and apparatuses for treating adipose tissue by applying ultrasound energy to the skin surface and radiating it into the subcutaneous adipose tissue. The treatment can include fat destruction, inducing fat necrosis, inducing fat apoptosis, fat redistribution, and cellulite treatment. The methods and apparatuses are based on the use of pressure gradients generated by ultrasound energy, which can selectively treat adipose tissue cells. The invention also includes an applicator for inducing a negative pressure in the skin surface to create a cavity in the adipose tissue for treatment. The invention can provide a non-invasive and effective treatment for adipose tissue."

Problems solved by technology

One method, liposuction, is a very aggressive invasive treatment requiring local or general anesthesia, and the subsequent healing process is very long and painful.
The main challenge with non-invasive treatment of fat tissue is to transfer the energy through the outer layers of the skin, and concentrating it to the required level in the fat tissue with minimal collateral damage to the skin layers and deeper body tissues.
This method of cell rupturing is also not selective for adipose tissue cells (adipocytes) because the adipocyte membrane is not weaker than that of other cells.
Under certain critical conditions, the bubbles collapse violently, generating in their vicinity shock waves and fluid jets that can destroy cells.
However, it is less efficient for treatment of the deeper adipose layers.
Typically the width of the cytoplasm is only a few micrometers and it is not uniform around the lipid vacuole.

Method used

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  • Method and Apparatus for Treatment of Adipose Tissue
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  • Method and Apparatus for Treatment of Adipose Tissue

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Embodiment Construction

[0076]According to invention, based on the above considerations, an apparatus for selective destruction of fat cells will include an ultrasound transducer, which is moderately focused. Referring to FIG. 1, an ultrasound transducer 21 has a focal point 22. The view angle α of the transducer edges from the focal point correlates with the focusing in a very general way: The larger α the larger the focusing. The displacement and the pressure gradient at the focus generated by waves coming from the edges of the transducer, is the vector sum of vector 24a and vector 24b yielding vector 25. The magnitude of the vector 25 is the magnitude of the vector 24a multiplied by 2 cos(α / 2) (assuming 24a is equal to 24b). For α=120′ this factor is 1, compared to a factor of 2 for the scalar summation of the pressure at the same point. That is, for large α the pressure is enhanced by the focusing much more then the pressure gradient. Therefore, to obtain the selective fat reduction according to the in...

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Abstract

The invention provides methods and apparatuses (4) for the treatment of adipose tissue. The methods comprise application of ultrasound energy to a region of adipose tissue, and the apparatuses comprise at least one source of ultrasound energy (42a, 42b) configured to direct ultrasound energy through a skin surface into the subcutaneous adipose tissue. In one embodiment, a pressure gradient is created in the region generating relative movement between fat cell constituents having different densities. In another embodiment, a protrusion of skin and underlying adipose tissue containing is formed and ultrasound energy is radiated into the adipose tissue in the protrusion. In another embodiment, an RF electric field is generated inside a region of adipose tissue together with the ultrasound energy.

Description

FIELD OF THE INVENTION[0001]The invention relates to methods and apparatuses for the reduction of adipose (fat) tissue.LIST OF REFERENCES[0002]The following references are brought to facilitate description of the background of the present invention, and should not be construed as limiting the scope or patentabililty of the invention:U.S. Pat. No. 5,143,063[0003]U.S. Pat. No. 5,158,070[0004]US Patent Applications Nos. 2005 / 0154431 and 2004 / 0106867[0005]U.S. Pat. No. 6,607,498[0006]U.S. Pat. No. 6,113,558[0007]U.S. Pat. No. 6,889,090[0008]U.S. Pat. No. 5,871,524[0009]U.S. Pat. No. 6,662,054[0010]S. Gabriel, R. W. Lau, and C. Gabriel, Phys. Med. Biol. 41 (1996), pp 2251-2269[0011]Luc Fournier and Be'la Joo's, Physical review 67, 051908 (2003)[0012]Alster T. S. and Tanzi, E. L., The Journal of Cosmetic and Laser Therapy. 2005; 7: 81-85[0013]“Physical properties of tissue”, by Francis A. Duck, Academic Press Ltd., 1990, p. 138.[0014]“Physical properties of tissue”, by Francis A. Duck, Ac...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61N7/00A61B18/18
CPCA61B2017/00026A61B2017/00061A61B2017/00106A61B2019/5276A61N1/0408A61N1/0472A61B2018/0047A61N7/00A61N2007/0008A61N2007/0039A61N2007/0078A61B18/12A61N1/328A61B2090/378A61B18/18A61H23/00A61N1/32
Inventor ROSENBERGECKHOUSE, SHIMONKREINDEL, MICHAEL
Owner SYNERON MEDICAL LTD
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