Method and apparatus for fractional photo therapy of skin
First Claim
1. A method for achieving beneficial effects in a target tissue in skin comprising treating the target tissue using optical radiation to create a plurality of microscopic treatment zones in a predetermined treatment pattern, wherein a subset of said plurality of discrete microscopic treatment zones includes individual discrete microscopic treatment zones comprising necrotic tissue volumes having an aspect ratio of at least about 1:
- 2.
9 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for providing fractional treatment of tissue (e.g., skin) using lasers is disclosed. The method involves creating one or more microscopic treatment zones of necrotic tissue and thermally-altered tissue and intentionally leaving viable tissue to surround the microscopic treatment zones. The dermatological apparatus includes one or more light sources and a delivery system to generate the microscopic treatment zones in a predetermined pattern. The microscopic treatment zones may be confined to the epidermis, dermis or span the epidermal-dermal junction, and further the stratum corneum above the microscopic treatment zones may be spared.
-
Citations
54 Claims
- 1. A method for achieving beneficial effects in a target tissue in skin comprising treating the target tissue using optical radiation to create a plurality of microscopic treatment zones in a predetermined treatment pattern, wherein a subset of said plurality of discrete microscopic treatment zones includes individual discrete microscopic treatment zones comprising necrotic tissue volumes having an aspect ratio of at least about 1:
-
7. The method of claim 7, wherein the microscopic treatment zones have a depth measured from the epidermal-dermal junction of the skin in a range up to about 4 mm into the dermis.
- 20. A method for achieving beneficial effects in skin tissue comprising treating the tissue by exposing a targeted part of the tissue to optical radiation to create a plurality of microscopic treatment zones such that the volume of the target tissue that remains substantially unaffected by the optical radiation is controlled.
-
27. A system for providing dermatological treatment comprising:
-
a source of optical radiation;
a means for delivering the optical radiation to a target volume of skin;
a control system that is operably connected to the source of optical radiation and the means for delivering the optical radiation;
the control system programmed to control the delivery of optical radiation to the target volume to create one or more microscopic treatment zones such that the volume of the target tissue that remains substantially unaffected by the optical radiation is controlled.
-
-
28. A system for providing dermatological treatment, comprising:
-
a source of optical radiation;
a delivery system operably coupled to the source, the delivery system configured to direct said optical radiation to a volume of tissue in a predetermined pattern; and
wherein the predetermined pattern comprises a plurality of discrete microscopic treatment zones, wherein a subset of said plurality of discrete microscopic treatment zones includes individual discrete microscopic treatment zones comprising necrotic tissue volumes having an aspect ratio of at least about 1;
2. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
-
Specification