Optical sensor and method for identifying the presence of skin and the pigmentation of skin
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61N-005/06
A61B-005/00
A61B-017/00
A61B-090/00
출원번호
US-0430730
(2009-04-27)
등록번호
US-9687671
(2017-06-27)
발명자
/ 주소
Weckwerth, Mark V.
Island, Tobin C.
Grove, Robert E.
출원인 / 주소
CHANNEL INVESTMENTS, LLC
대리인 / 주소
Slayden Grubert Beard PLLC
인용정보
피인용 횟수 :
0인용 특허 :
186
초록▼
Apparatus and methods are provided to control a device, such as a light emitting dermatologic or cosmetic treatment device, and ensure that the device is in contact with skin while also determining the pigmentation level of skin. One or more light sources contact the skin and one or more detectors m
Apparatus and methods are provided to control a device, such as a light emitting dermatologic or cosmetic treatment device, and ensure that the device is in contact with skin while also determining the pigmentation level of skin. One or more light sources contact the skin and one or more detectors measure spectral remission from the skin. The obtained remission measurements are compared with known skin spectral remission values, and calibration allows measurements of absolute remission to be converted to fractional remission values. Skin pigmentation levels are compared to known base-line levels to determine and control appropriate treatment parameters. A temperature sensor allows correction for temperature variations. The apparatus may or may not be incorporated into the treatment device.
대표청구항▼
1. A dermatological treatment system, comprising: an optical device for analyzing a target surface, the optical device comprising: a housing having a surface contacting portion;one or more light sources provided in the housing and configured to emit light toward a target surface proximate the surfac
1. A dermatological treatment system, comprising: an optical device for analyzing a target surface, the optical device comprising: a housing having a surface contacting portion;one or more light sources provided in the housing and configured to emit light toward a target surface proximate the surface contacting portion;one or more detectors provided in the housing and configured to detect remitted light from the target surface at one or more different wavelengths;control circuitry coupled to the one or more light sources and the one or more detectors, the control circuitry comprising: a processor; andcomputer instructions stored in non-transitory computer-readable media and programmed to: perform a remittance analysis including analyzing the detected remittance at the one or more different wavelengths to determine at least one of (a) whether the target surface is skin or (b) a pigmentation of the target surface; anda wireless transmitter coupled to the control circuity, wherein the wireless transmitter wirelessly transmits results of the remittance analysis;a treatment radiation source configured to emit treatment radiation toward a user;a wireless receiver that receives the results of the remittance analysis transmitted by the wireless transmitter of the optical device; anda controller configured to control radiation emission by the treatment radiation source based on the results of the remittance analysis received via the wireless receiver. 2. The dermatological treatment system of claim 1 further composing a temperature sensor coupled to the control circuitry. 3. The dermatological treatment system of claim 1 wherein the one or more light sources comprises a single broad band light source, and the one or more detectors comprises a single broad band detector. 4. The dermatological treatment system of claim 1 wherein the one or more light sources comprises multiple light sources, each of the multiple light sources emitting light at a different wavelength, and the one or more detectors comprises a single broad band detector. 5. The dermatological treatment system claim 1 wherein the one or more light sources comprises multiple light sources, each of the multiple light sources emitting light at a different wavelength, and the one or more detectors comprises multiple detectors, each of the multiple detectors detecting a different wavelength. 6. The dermatological treatment system of claim 1 wherein the one or more light sources comprises one or more LEDs selected from green, red, super red, yellow, blue and infrared LEDs. 7. The dermatological treatment system of claim 1 further comprising an indicator coupled to the control circuitry. 8. The dermatological treatment system of claim 7 wherein the indicator provides an indication to a user based on the remitted light detected by the one or more detectors. 9. A dermatologic treatment device comprising: a housing;a treatment radiation source within the housing capable of being activated to emit treatment radiation toward a user;an optical control system mounted within the housing, the optical control system comprising: one or more light sources configured to emit light toward a target surface;a first detector configured to detect remitted light from the target surface at a first wavelength; andcontrol circuitry including a processor and computer instructions stored in a computer-readable medium and programmed to: determine both (a) whether the target surface is skin and (b) the pigmentation of the target surface using the detected remittance at the first wavelength as detected by the first detector, andcontrol radiation emission by the treatment radiation source of the dermatologic treatment device based on (a) the determination of whether the target surface is skin and (b) the determined pigmentation of the target surface,wherein the computer instructions are programmed with: a first algorithm that determines whether the target surface is skin based on the detected remittance at multiple different wavelengths, including the detected remittance at the first wavelength as detected by the first detector, anda second algorithm that determines the pigmentation of the target surface based on the detected remittance a subset of the multiple different wavelengths, the subset including the detected remittance at the first wavelength as detected by the first detector,such that detected remittance at the first wavelength as detected by the first detector is used for both the determination of whether the target surface is skin and the determination of the pigmentation of the target surface. 10. The dermatologic treatment device of claim 9 wherein the optical control system further comprises a temperature sensor coupled to the control circuitry. 11. The dermatologic treatment device of claim 9 wherein the one or more light sources comprises a single broad band light source, and the optical control system includes the first detector and at least one further detector. 12. The dermatologic treatment device of claim 9 wherein the one or more light sources comprises multiple light sources, each of the multiple light sources emitting light at a different wavelength, and the first detector comprises a single broad band detector. 13. The dermatologic treatment device of claim 9 wherein the one or more light sources comprises multiple light sources, each of the multiple light sources emitting light at a different wavelength, and the optical control system includes multiple detectors, including the first detector and at least one further detector, each of the multiple detectors detecting a different wavelength. 14. The dermatologic treatment device of claim 9 wherein the one or more light sources comprise one or more LEDs selected from green, red, super red, yellow, blue and infrared LEDs. 15. The dermatologic treatment device of claim 9 further comprising an indicator coupled to the control circuitry. 16. The dermatologic treatment device of claim 15 wherein the indicator provides an indication to a user based on the remitted light detected by the one or more detectors. 17. The optical device of claim 1 wherein the one or more light sources comprises a single broad band light source, and the one or more detectors comprises multiple detectors, each configured to detect a different optical band. 18. A method for analyzing a target surface using an optical device, the method comprising: operating an optical device comprising: a housing having a surface contacting portion;one or more light sources provided in the housing and configured to emit light toward a target surface proximate the surface contacting portion;a first detector provided in the housing and configured to detect remitted light from the target surface at a first wavelength; andcontrol circuitry coupled to the one or more light sources and the first detector; anddetermining, by the control circuitry, whether the target surface is skin based on the detected remittance at the multiple different wavelengths, including the detected remittance at the first wavelength as detected by the first detector, anddetermining, by the control circuitry, a pigmentation of the target surface based on the detected remittance at a subset of the multiple different wavelengths, the subset including the detected remittance at the first wavelength as detected by the first detector,such that such that the detected remittance at the first wavelength as detected by the first detector is used for determining both (a) whether the target surface is skin and (b) the pigmentation of the target surface, andcontrolling, by the control circuitry, at least one aspect of radiation emission by a dermatologic treatment source of a dermatologic treatment device based on (a) the determination of whether the target surface is skin and (b) the determined pigmentation of the target surface. 19. The method of claim 18, wherein the subset of the multiple different wavelengths is a single wavelength. 20. The optical device of claim 1, wherein controlling radiation emission by the treatment radiation source based on the results of the remittance analysis comprises preventing radiation emission by the treatment radiation source based on the results of the remittance analysis. 21. The optical device of claim 1, wherein controlling radiation emission by the treatment radiation source based on the results of the remittance analysis comprises controlling an emission level emitted by the treatment radiation source based on the results of the remittance analysis. 22. The method of claim 18, wherein the optical control system includes multiple detectors including the first detector and at least one further detector, wherein each of the multiple detectors is configured to detect a different wavelength. 23. The method of claim 18, wherein the first detector comprises a broad band detector.
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