Dermatological treatment device

• US 20060271028A1
• Filed: 02/17/2006
• Published: 11/30/2006
• Est. Priority Date: 02/18/2005
• Status: Abandoned Application

• Current Assignee: Palomar Medical Technologies Incorporated (Hologic Incorporated)
• Original Assignee: Palomar Medical Technologies Incorporated (Hologic Incorporated)
• Inventors: Altshuler, Gregory B., O'Shea, Liam, Yaroslavsky, Ilya, Erofeev, Andrei V., Belikov, Andrey
• Application Number:
  US11/357,398
• Publication Number:
  US 20060271028A1
• Time in Patent Office: Days
• US Class Current: 606/9
• CPC Class Codes: A61B 18/203 applying laser energy to the outside of the body
• CPC Class Codes: A61B 2018/00017 with gas
• CPC Class Codes: A61B 2018/00023 closed, i.e. without wound contact by the fluid
• CPC Class Codes: A61B 2018/00452 Skin
• CPC Class Codes: A61B 2018/00458 Deeper parts of the skin, e.g. treatment of vascular disorders or port wine stains
• CPC Class Codes: A61B 2018/00904 Automatic detection of target tissue
• CPC Class Codes: A61B 2018/1807 using light other than laser radiation
• CPC Class Codes: A61B 2090/065 for measuring contact or contact pressure

Abstract

A device and method for utilizing optical radiation to treat tissue are described. In one aspect, the device is a dermatological treatment device. The device can be used, for example, for treatment of dermatological and cosmetic conditions. The device can include a sensor that indicates when the device is in contact with a subject'"'"'s tissue. Operation of the device can, in some instances, be partially or fully automated. The device can further include a light source that is air cooled and a cooling plate that is chilled preferably to 5° C. The device can also include a window that is enlarged to reduce the power density and facilitate heating of tissue at depth.

Claims

1. A dermatological device, comprising:

a light source assembly including a source for generating EMR and a plate for contacting the tissue to be treated, wherein the light source assembly is configured to transmit EMR from the source and through the plate during operation;

a first cooling mechanism for cooling the radiation source; and

a second cooling mechanism for cooling the plate.

2. The dermatological device of claim 1, wherein the first cooling mechanism includes a fan configured to pump air to cool the source.

3. The dermatological device of claim 2, wherein the first cooling system further includes a heatsink in thermal communication with the source, wherein the fan is configured to pump air over the heatsink to remove heat from the heatsink device during operation.

4. The dermatological device of claim 3, wherein the heatsink includes a plurality of cooling fins.

5. The dermatological device of claim 3, wherein heatsink is thermally coupled to the source via a reflector, and wherein the fan is configured to cool the source, the reflector, and the heatsink.

6. The dermatological device of claim 1, further comprising a control unit for controlling the first cooling mechanism.

7. The dermatological device of claim 6, wherein the control unit further comprises a controller in electrical communication with a temperature sensor and in electrical communication with the first cooling mechanism, wherein the controller automatically controls the first cooling mechanism based on information received from the temperature sensor.

8. The dermatological device of claim 1, wherein the second cooling mechanism includes a circulatory system for circulating a coolant.

9. The dermatological device of claim 8, wherein the circulatory system includes a chiller.

10. The dermatological device of claim 8, wherein the circulatory system is configured to cool the cooling surface to approximately at least 5°

C.

11. The dermatological device of claim 1, wherein the second cooling mechanism includes a pump, a cooling input, and a cooling output, the cooling input being connected to the cooling surface at an input connection and the cooling output being connected to the cooling surface at an output connection,

wherein the cooling mechanism is configured to supply cooling fluid to the cooling surface during operation via the cooling input and to extract heated coolant from the cooling surface via the cooling output to cool the cooling surface.

12. The dermatological device of claim 11, wherein the second cooling mechanism further includes a chiller.

13. The dermatological device of claim 11, wherein the second cooling mechanism is a circulatory system.

14. The dermatological device of claim 11, wherein the coolant is air.

15. The dermatological device of claim 11, wherein the coolant is a fluid.

16. The dermatological device of claim 1, wherein the second cooling mechanism further comprises a temperature sensor for monitoring the temperature of the tissue.

17. The dermatological device of claim 1, further comprising a control unit for controlling the second cooling mechanism.

18. The dermatological device of claim 17, wherein the control unit further comprises a controller in electrical communication with a temperature sensor and in electrical communication with the pump, wherein the controller is configured to automatically control the pump based on information received from the temperature sensor.

19. The dermatological device of claim 1, wherein the source for generating EMR comprises a halogen lamp.

20. The dermatological device of claim 1, wherein the dermatological device includes at least one additional system component, and wherein the first cooling mechanism is configured to cool the at least one additional system component.

21. The dermatological device of claim 20, wherein the at least one additional electrical component includes at least one of:

an electrode, a reflector, an optical element, a heat pipe and a heat exchanger.