公开(公告)号：US11331143B2

公开(公告)日：2022-05-17

申请号：US16324331

申请日：2017-08-08

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Babu Varghese ,  Rieko Verhagen

IPC: A61B18/00 ,  A61B18/20

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 focusing system.

公开(公告)号：US10471275B2

公开(公告)日：2019-11-12

申请号：US15876510

申请日：2018-01-22

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Babu Varghese ,  Rieko Verhagen

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

Abstract: A device (10) for light based skin treatment is provided. The device (10) comprises a light source (18) for providing an incident light beam (21) for treating a skin (30), optical elements for focusing the incident light beam (21) in a focal point (22) inside the skin (30), and a skin interface element (11) for, during use of the device (10), providing optical coupling of the incident light beam (21) from the device (10) into the skin (30). The skin interface element (11) comprises a transparent exit window (12) for allowing the incident light beam (21) to leave the device (10), on top of the exit window (12), a transparent mixture (13) of a polar substance and an apolar substance, and on top of the transparent mixture (13), a transparent foil (14), the transparent foil (14) being more hydrophobic than the exit window (12).

公开(公告)号：US10342477B2

公开(公告)日：2019-07-09

申请号：US15322748

申请日：2015-06-04

Applicant: KONINKLIJKE PHILIPS N.V.

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

IPC: A61N5/073 ,  A61N5/06 ,  A61B5/00 ,  A61B18/20 ,  A61B18/12 ,  G01N21/49 ,  G01N21/63 ,  A61N1/40 ,  A61N7/00 ,  A61B17/00 ,  A61B18/00 ,  A61N5/067

Abstract: The measurement system 110 comprises a light source 120 configured and arranged for emitting a light beam via a polarization modulator 130 to a target position inside the skin 160, wherein the polarization modulator 130 is configured and arranged to simultaneously provide, in use, a first and a second region in a cross-section of the light beam in the target position, the first and the second region being distinct and having a corresponding first and second direction of polarization, the first and the second polarization direction being different from each other, and the measurement system also comprises a detection unit 150 to simultaneously detect a first and a second intensity of reflected light 145, the first intensity corresponding to light reflected from the first region of the light beam in the target position 160, and the second intensity corresponding to light reflected from the second region of the light beam in the target position 160, and the measurement system further comprises a processor being coupled to the detection unit 150 for determining a difference between the first and the second intensity.

公开(公告)号：US10092771B2

公开(公告)日：2018-10-09

申请号：US15034881

申请日：2014-10-29

Applicant: KONINKLIJKE PHILIPS N.V.

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

IPC: A61N5/06 ,  A61B18/04 ,  A61B18/20 ,  A61N1/44 ,  A61B18/00 ,  A61N5/067

Abstract: The invention provides a non-invasive skin treatment device (200) for generating a multiphoton ionization process at a target position (110) in skin tissue (102). The skin treatment device (200) comprises a laser source (105) configured and constructed for generating a laser beam (106), an optical system (109, 112) for focusing the laser beam into the target position below a skin surface (103), and a plasma unit (117) configured and constructed for generating a plasma (100) such that, in use, at least a portion of the plasma penetrates the skin tissue for generating at least one free electron at the target position. The skin treatment device further comprises a control unit (123) configured and constructed for controlling the laser source and the plasma unit such that, in use, at least a portion of the light of the laser beam is absorbed by said at least one free electron generated at the target position, thereby generating the multiphoton ionization process. A result of the use of the plasma in generating the multiphoton ionization process is that an overall laser beam intensity, required to generate the multiphoton ionization process, is reduced as compared to skin treatment devices which generate the multiphoton ionization process using a laser beam only.

公开(公告)号：US09676059B2

公开(公告)日：2017-06-13

申请号：US14418198

申请日：2013-07-26

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Babu Varghese ,  Rieko Verhagen

IPC: B23K26/04 ,  B23K26/06 ,  B23K26/38 ,  A61B18/20 ,  A61B18/00

CPC classification number: B23K26/04 ,  A61B18/203 ,  A61B2018/00476 ,  B23K26/0665 ,  B23K26/38

Abstract: A device for cutting hair is disclosed that includes a laser beam generator (2) and a polarisation controller (6) configured to polarise the laser beam (10) and substantially align the polarisation of the laser beam with a longitudinal axis of a hair to be cut. Also disclosed is a method of cutting hair using a laser beam to cut hair. The method including generating and polarising the laser beam to substantially align the polarisation of the laser beam with a longitudinal axis of a hair to be cut.

公开(公告)号：US09675415B2

公开(公告)日：2017-06-13

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 ,  G01N21/21 ,  G01N21/47 ,  A61B18/00 ,  A61N5/01 ,  A61N5/073

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.

公开(公告)号：US11690562B2

公开(公告)日：2023-07-04

申请号：US16499884

申请日：2018-04-02

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Babu Varghese ,  Arnoldus Johannes Martinus Jozeph Ras ,  Rieko Verhagen

IPC: A61B5/00 ,  G01N21/21 ,  G01N21/57

CPC classification number: A61B5/443 ,  A61B5/0075 ,  A61B5/0077 ,  G01N21/21 ,  G01N21/57 ,  A61B2562/0233

Abstract: A system includes a sensor for measuring a skin parameter. The sensor includes at least three spatially separated light sources for providing unpolarized visible light, a detector located at a first distance from each of the light sources selected from the range of 10-80 mm and at a second distance from the skin, and a polarizer including one or more of a segmented polarizer and a spatially varying polarizer. In a sensing mode, the light sources are configured to sequentially illuminate the skin with the light with optical axes at an angle of incidence selected from the range of 10°-80°, and the detector is configured to sequentially detect light reflected from the skin and generate corresponding detector signals.

公开(公告)号：US11596323B2

公开(公告)日：2023-03-07

申请号：US16957125

申请日：2018-12-27

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Babu Varghese ,  Wouter Hendrik Cornelis Spoorendonk ,  Walter Hermans ,  Marco Baragona ,  Anna Ezerskaya

IPC: A61B5/05 ,  A61B5/0537 ,  A61B5/1477 ,  A61B5/00

Abstract: There is provided a system (100) and method for determining a water or lipid level of skin. The system (100) comprises at least two electrodes (108) suitable for contacting skin, and a signal generator (106) configured to generate an electrical signal at a frequency across the at least two electrodes (108). The system (100) is configured to measure a conductivity between the at least two electrodes (108). The system (100) is further configured to determine a water or lipid level of skin based on the measured conductivity and the frequency of the electrical signal.

公开(公告)号：US11324948B2

公开(公告)日：2022-05-10

申请号：US15746023

申请日：2016-07-11

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Martin Jurna ,  Marco Baragona ,  Margaret Ruth Horton ,  Jonathan Alambra Palero ,  Hendrik Halling Van Amerongen ,  Babu Varghese

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

Abstract: A device for (RF) skin treatment comprising an active electrode having a first skin contact surface for electrical contact with a skin of a user and during use A return electrode having a second skin contact surface for electrical contact with the skin of the user during use. An RF generator to supply an RF treatment voltage between the active electrode and the return electrode to heat the skin below the active electrode. A coupling member arranged on the first skin contact surface comprising an electrically conductive material to improve the electrical coupling of the active electrode to the skin surface. The coupling member comprising a first layer of a first electrically conductive material arranged on the first skin contact surface, and a second layer of a second electrically conductive material, arranged on a side of the first layer remote from the first skin contact surface.

公开(公告)号：US11129677B2

公开(公告)日：2021-09-28

申请号：US16468455

申请日：2017-12-05

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Rieko Verhagen ,  Babu Varghese

IPC: A61B18/24 ,  A61B18/20 ,  H01S5/02251 ,  H01S5/50 ,  H01S5/02255 ,  H01S5/02253 ,  H01S3/02 ,  H01S3/113 ,  H01S3/094 ,  H01S3/23

Abstract: A light based treatment device comprises an optical arrangement at a light exit end of an optical fiber. The optical arrangement includes a master oscillator power amplifier based on a semiconductor optical laser and a crystal optical amplifier. In this way, the peak power provided along the optical fiber can be reduced to prevent damage to the optical fiber, while enabling a sufficiently high pulse power to be delivered for tissue treatment.