Skin treatment apparatus

• US 9,814,904 B2
• Filed: 11/23/2012
• Issued: 11/14/2017
• Est. Priority Date: 11/25/2011
• Status: Active Grant

• Current Assignee: CyDen Limited
• Original Assignee: CyDen Limited
• Inventors: Jones, Stuart Terry
• Primary Examiner(s): Eiseman, Lynsey
• Assistant Examiner(s): Pahakis, Manolis
• Application Number:
  US14/360,703
• Publication Number:
  US 20140324135A1
• Time in Patent Office: 1,817 Days
• Field of Search: None
• CPC Class Codes: A61B 18/203 applying laser energy to the outside of the body
• CPC Class Codes: A61B 2018/00452 Skin
• CPC Class Codes: A61B 2018/00642 with feedback, i.e. closed loop control
• CPC Class Codes: A61B 2018/00702 Power or energy
• CPC Class Codes: A61B 2018/00726 Duty cycle
• CPC Class Codes: A61B 2018/00732 Frequency
• CPC Class Codes: A61B 2018/00785 Reflected power
• CPC Class Codes: A61B 2560/0456 Apparatus provided with a docking unit
• CPC Class Codes: A61N 2005/0626 Monitoring, verifying, controlling systems and methods
• CPC Class Codes: A61N 2005/0644 Handheld applicators
• CPC Class Codes: A61N 5/0616 Skin treatment other than tanning

Abstract

The apparatus includes a source of treatment radiation which is arranged to generate radiation at one of a plurality of radiation parameters (such as power levels), a control unit and a base unit. The control unit is arranged to removably dock with the base unit and includes a sensor which can sense one of a plurality of skin parameters, and an actuator for enabling a user to interface with the control unit. The control unit operates in a sensing mode, in which the control unit is undocked from the base unit to sense a parameter of skin to be treated (such as skin tone), and a control mode in which the control unit is docked to the docking unit and is arranged to select the power level of the radiation generated by the source.

Claims

1. A skin treatment apparatus, said apparatus comprising:

a handpiece with a source of skin treatment radiation configured to generate intense pulsed light radiation;

a control unit for controlling a variable radiation parameter of said intense pulsed light radiation generated from said source, wherein the variable radiation parameter includes one or more of a power, a pulse duration or a pulse frequency per activation, wherein the control unit is part of a separate handheld unit than the handpiece;

a base unit including a processor, the base unit having cradles configured to enable docking and undocking of the handpiece and the control unit therein;

a sensor on said control unit for sensing a skin parameter, wherein the skin parameter includes one or more of a skin tone, a skin layer thickness, a level of oiliness, or a skin blood parameter; and

an actuator for enabling a user to interface with said control unit;

wherein said control unit is configured to operate in a sensing mode when said control unit is undocked from said base unit, and, in the sensing mode;

said sensor is configured to sense the skin parameter, and

wherein said control unit is configured to operate in a control mode when said control unit is docked to said base unit, and, in the control mode;

said control unit automatically transfers the skin parameter sensed by the sensor in the sensing mode to the processor of the base unit and selects a skin safety limit for the variable radiation parameter based on the sensed skin parameter;

said processor initiates the source to charge at the automatically selected skin safety limit of the variable radiation parameter; and

said actuator is configured to further permit changing the variable radiation parameter manually, but not beyond the automatically selected skin safety limit.

2. The skin treatment apparatus according to claim 1, wherein the automatically selected skin safety limit is a maximum power.

3. The skin treatment apparatus according to claim 2, wherein said actuator enables sequential actuation by a user that selects a power progressively lower than the maximum power.

4. The skin treatment apparatus according to claim 3, wherein once the lowest power has been selected, further actuation of said actuator resets said power to the maximum power.

5. The skin treatment apparatus according to claim 1, wherein said control unit comprises a first memory for storing said sensed skin parameter.

6. The skin treatment apparatus according to claim 5, wherein said base unit includes a second memory and said sensed skin parameter is downloadable from said control unit to said first memory when said control unit is docked to the base unit.

7. The skin treatment apparatus according to claim 1, wherein said control unit further comprises a plurality of indicators for indicating a magnitude of the parameter of the radiation to be generated by said radiation source.

8. The skin treatment apparatus according to claim 1, further comprising a timing circuit for preventing generation of radiation from said radiation source when said radiation source is not activated within a pre-determined time following the docking of said control unit to said base unit.