公开(公告)号：US11344368B2

公开(公告)日：2022-05-31

申请号：US16324328

申请日：2017-08-08

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Babu Varghese ,  Rieko Verhagen

IPC: A61B18/00 ,  A61B18/20

Abstract: A pulsed laser skin treatment device is for laser induced optical breakdown of hair or skin tissue. A beam scanning system scans the beam to define a circular or arc path, using a rotated prism which implements a lateral shift to the beam. A focusing system at the output side of the beam scanning system focuses the incident light beam into a focal spot in the hair or skin tissue, and it rotates with the prism.

公开(公告)号：US11241284B1

公开(公告)日：2022-02-08

申请号：US15781186

申请日：2016-12-08

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Babu Varghese ,  Marco Baragona ,  Jonathan Alambra Palero ,  Martin Jurna ,  Margaret Ruth Horton ,  Anna Ezerskaia

IPC: A61B18/20 ,  A61N5/06 ,  A61N5/067 ,  A61B18/22 ,  A61B18/00

Abstract: The invention relates to a skin treatment device (10) for fractional treatment of the skin (100) of a human being. A radiation source (5) emits a multi-mode laser beam (20) with a superposition (23) of mutually different higher-order laser modes. The multi-mode laser beam is configured by said superposition of different laser modes to simultaneously cause a first plurality of high-intensity zones, where the thermal threshold (TC) for collagen denaturation for the treatment zone (50) of the skin is at least reached, and a second plurality of low-intensity zones where the thermal threshold (TF) for fibroblast stimulation for the treatment zone of the skin is at least reached. This is advantageous for obtaining a skin treatment device with a simple and therefore low-cost fractional laser skin treatment system for combined collagen denaturation and fibroblast stimulation. The skin treatment device is based on non-uniform laser radiation in the form of the multi-mode laser beam.

公开(公告)号：US11229805B2

公开(公告)日：2022-01-25

申请号：US15313115

申请日：2015-05-19

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Jonathan Alambra Palero ,  Martin Jurna ,  Margaret Ruth Horton ,  Babu Varghese

IPC: A61N1/04 ,  A61N1/40 ,  A61N1/32 ,  A61N1/06 ,  A61B18/00 ,  A61B18/14

Abstract: A device for skin treatment includes a non-circular symmetrical outer electrode and at least two inner electrodes surrounded by the outer electrode. An RF generator is arranged to supply an RF voltage between the inner electrodes and the outer electrode. If the outer electrode has two or more axes of symmetry, then each of the inner electrodes is at an equal minimum distance from the outer electrode and an equal distance from a common point of intersection of all axes of symmetry and is positioned, with respect to each of the respective axes of symmetry, either on the respective axis of symmetry or at a distance from the respective axis of symmetry and symmetrically relative to one of the other inner electrodes.

公开(公告)号：US11129675B2

公开(公告)日：2021-09-28

申请号：US14786208

申请日：2014-04-24

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Babu Varghese ,  Rieko Verhagen ,  Jonathan Alambra Palero ,  Martin Jurna ,  Margaret Ruth Horton

IPC: A61B18/20 ,  A61B18/00 ,  A61B17/00

Abstract: The invention provides a non-invasive device (100) for treatment of skin tissue using laser light, and it provides a method and a computer program product. The non-invasive device comprises a light emission system (110) for generating a first laser pulse (130) and a subsequent second laser pulse (150) at a predefined time delay (ΔT) after the first laser pulse. The non-invasive device further comprises an optical system (160) for focusing, in use, the first laser pulse and the second laser pulse at a treatment location (210) inside the skin tissue (200). The first laser pulse comprises a first power density, a first pulse duration and a first pulse energy for initiating a plasma (205) at the treatment location. The subsequent second laser pulse comprises a second power density being lower than the first power density and a second pulse duration being at least 10 times longer than the first pulse duration, and a second pulse energy higher than the first pulse energy for sustaining or intensifying the plasma initiated by the first laser pulse, whereby in use the first laser pulse and the second laser pulse together induce Laser Induced Optical Breakdown at the treatment location.

公开(公告)号：US11058490B2

公开(公告)日：2021-07-13

申请号：US16324350

申请日：2017-08-08

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Babu Varghese ,  Rieko Verhagen

IPC: A61B18/20 ,  A61B18/00

Abstract: A light based skin treatment device comprises a laser light source for providing a pulsed incident light beam for treating skin by laser induced optical breakdown of hair or skin tissue. In one arrangement, a focusing system has a pre-focusing lens for increasing the convergence of the an incident light beam and a skin contact lens having convex light input and light exit surfaces. The focal spot position is controlled by adjusting a spacing between the pre-focusing lens and the skin contact lens. In another arrangement, there is an adjustable lens system before an adjustable focusing system for providing compensation for aberration in the adjustable focusing system.

公开(公告)号：US10413360B2

公开(公告)日：2019-09-17

申请号：US15030385

申请日：2014-10-31

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Babu Varghese ,  Rieko Verhagen ,  Martin Jurna ,  Jonathan Alambra Palero

IPC: A61B18/20 ,  A61B18/00 ,  A61N5/073

Abstract: The invention provides a non-invasive skin treatment device (100) comprising: a light source (10) constructed and configured for generating linearly polarized probe light (12) and linearly polarized treatment light (22), a polarization modulator (30) constructed and configured for controlling a polarization direction of the probe light and a polarization direction of the treatment light, a polarization sensitive sensor (40) constructed and configured for sensing a level of depolarization of the probe light by sensing an intensity of back-scattered probe light (42) from the target position (210) in a predefined polarization direction of the polarization sensitive sensor, and a controller (60) being configured for scanning the polarization direction of the probe light over a predefined range while receiving the measurement signal (Sm) and for selecting an optimum polarization (P1) direction for which the depolarization of the probe light is at a minimum. The invention further provides a computer program product for controlling the skin treatment device.

公开(公告)号：US09295520B2

公开(公告)日：2016-03-29

申请号：US14357077

申请日：2012-11-07

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Babu Varghese ,  Rieko Verhagen

IPC: A61B18/20 ,  G01N21/21 ,  A61B5/00 ,  A61B17/00 ,  A61B18/00

CPC classification number: A61B18/203 ,  A61B5/0059 ,  A61B5/448 ,  A61B2017/00057 ,  A61B2018/00029 ,  A61B2018/0047 ,  A61B2018/00476 ,  A61B2018/00601 ,  A61B2018/00642 ,  A61B2018/00785 ,  A61B2018/00904 ,  A61B2018/202 ,  A61B2018/2025 ,  A61B2018/20357 ,  G01N21/21 ,  G01N2021/216

Abstract: A hair treatment (40) device is provided comprising a light-based detector (10) for detecting a hair (22) near a skin surface (21) the detector (10) comprising a light source (11), optical elements (14, 16, 17, 18) and a polarization-sensitive light sensor (12, 13). The light source (11) is provided for generating a light beam (31) with an incident polarization. The optical elements (14, 16, 17, 18) are provided for focusing the light beam (31) at the hair (22) near the skin surface (21). The polarization-sensitive light sensor (12, 13) is provided for detecting light interacted with the hair (22) or the skin surface (21) and having a predefined linear polarization. The light source (11) and/or the optical elements (14, 16, 17, 18) are arranged to cause the light beam (31) to simultaneously have multiple spatially separated foci (51, 52, 53) at or near the hair (22) or the skin surface (21).

Abstract translation: 提供一种头发处理装置，包括：一个用于检测皮肤表面（21）附近的毛发（22）的基于光的检测器（10），所述检测器（10）包括光源（11），光学元件（14， 16,17,18）和偏振光敏感光传感器（12,13）。 光源（11）用于产生具有入射偏振的光束（31）。 光学元件（14,16,17,18）用于将光束（31）聚焦在皮肤表面（21）附近的头发（22）处。 偏振敏感光传感器（12,13）用于检测与毛发（22）或皮肤表面（21）相互作用并具有预定义的线偏振的光。 光源（11）和/或光学元件（14,16,17,18）被布置成使得光束（31）同时在头发处或附近具有多个空间上分离的焦点（51,52,53） （22）或皮肤表面（21）。

公开(公告)号：US20150038953A1

公开(公告)日：2015-02-05

申请号：US14381342

申请日：2013-02-19

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Babu Varghese ,  Rieko Verhagen

IPC: A61B18/20 ,  A61B5/00

CPC classification number: A61B18/203 ,  A61B5/0059 ,  A61B5/0077 ,  A61B2018/0047 ,  A61B2018/00738 ,  A61N2005/073 ,  G01N21/21 ,  G01N21/4795

Abstract: A device (10) for energy-based skin treatment is provided. The device (10) comprises a light source (18) for providing polarized incident light (21) having an incident polarization, optical elements (11, 12, 13) for focusing the polarized incident light (21) in a focal point (22) within a collagen layer of the skin (30), a polarization-sensitive detection unit (41, 42) for selectively detecting a selected polarization component of light of a generated harmonic (23) of the polarized incident light (21) returning from the skin (30), and a processor, at least being coupled to the polarization-sensitive detection unit (41, 42), for determining a depth of the focal point (22) within the collagen layer based on the detected selected polarization component.

Abstract translation: 提供了一种用于能量皮肤治疗的装置（10）。 装置（10）包括用于提供具有入射偏振的偏振入射光（21）的光源（18），用于将偏振入射光（21）聚焦在焦点（22）中的光学元件（11,12,13） 在所述皮肤的胶原层（30）内的偏振敏感检测单元（41,42），用于选择性地检测从所述皮肤返回的所述偏振入射光（21）的产生的谐波（23）的选定的偏振分量 （30），以及处理器，至少耦合到所述偏振敏感检测单元（41,42），用于基于检测到的选择的偏振分量来确定胶原层内焦点（22）的深度。