Method and apparatus for the selective targeting of lipid-rich tissues
First Claim
1. Apparatus for selectively targeting lipid-rich tissue to effect a desired treatment, said apparatus comprising:
- a source of radiation at a wavelength for which absorption coefficients for fat and water have a ratio which is at least 0.5, said source when energized, providing the radiation at a fluence and for a duration sufficient for the desired treatment; and
a component which delivers the energy from said source to the lipid-rich tissue to be treated;
wherein said wavelength is in a band 1700 to 1730 nm; and
wherein said source is a potassium cadmium laser with a matrix KCd(WO4)2 which is doped with Er3+ions.
4 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus are provided for targeting lipid-rich tissue to effect a desired, the method/apparatus involving irradiating the lipid-rich tissue with energy at a wavelength preferentially absorbed by lipid cells, such wavelength being preferably in a band between 880 nm and 935 nm, 1150 nm and 1230 nm, 1690 nm to 1780 nm, or 2250 nm to 2450 nm with a fluence and duration sufficient to achieve a desired treatment. For preferred embodiments, the irradiation wavelength is between 900-930 nm, 1190-1220 nm, 1700-1730 nm, or 2280-2350 nm. The method and apparatus may for example be used to target one or more sebaceous glands for the treatment of acne or hair removal, to target subcutaneous fat for removal thereof or for targeting fat on anatomical elements for various purposes.
-
Citations
72 Claims
-
1. Apparatus for selectively targeting lipid-rich tissue to effect a desired treatment, said apparatus comprising:
-
a source of radiation at a wavelength for which absorption coefficients for fat and water have a ratio which is at least 0.5, said source when energized, providing the radiation at a fluence and for a duration sufficient for the desired treatment; and
a component which delivers the energy from said source to the lipid-rich tissue to be treated;
wherein said wavelength is in a band 1700 to 1730 nm; and
wherein said source is a potassium cadmium laser with a matrix KCd(WO4)2 which is doped with Er3+ions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. Apparatus for selectively targeting lipid-rich tissue to effect a desired treatment, said apparatus comprising:
-
a source of radiation at a wavelength for which absorption coefficients for fat and water have a ratio which is at least 0.5, said source when energized, providing the radiation at a fluence and for a duration sufficient for the desired treatment;
a component which delivers the energy from said source to the lipid-rich tissue to be treated;
a slotted head for irradiation delivery; and
a mechanism for drawing a fold of skin to undergo said desired treatment into said slot of said head;
wherein said wavelength is in a band which is one of (a) 880 to 935 nm, (b) 1160 to 1230 nm, (c) 1690 to 1780 nm, and (d) 2250 nm to 2450 nm.
-
- 14. A method for selectively targeting lipid-rich tissue to effect a desired treatment, said method comprising irradiating said lipid-rich tissue with optical radiation at a wavelength for which absorption coefficients for fat and water have a ratio which is at least 0.5, the radiation being at a fluence and for a duration sufficient for the desired treatment.
-
48. A method of treating lipid-rich tissue, comprising:
-
providing a radiation source;
projecting radiation from the radiation source onto a skin surface overlying the lipid-rich tissue, the entire radiation from the radiation source that is projected on the skin surface having a ratio of energy absorption by lipid tissue to energy absorption by water of at least 0.5; and
irradiating the lipid-rich tissue with a portion of the radiation. - View Dependent Claims (49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72)
-
Specification