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公开(公告)号：US10588391B2
公开(公告)日：2020-03-17
申请号：US16083222
申请日：2017-02-10
发明人： Jonathan Alambra Palero , Marco Baragona , Babu Varghese , Tim Tielemans , Johan Lub , Wouter Hendrik Cornelis Spoorendonk
摘要： In a hair styling device (20), a light emitting diode (33) is configured to deliver optical energy to hair, wherein an energy fluence of the optical energy is between 0.5 and 9 J/cm2, and more preferably between 1 and 5 J/cm2. The light emitting diode (33) is pulse-driven, and a pulse width of the optical energy is at least 50 ms. An output wavelength of the optical energy may be between 400 and 900 nm. The pulse width of the optical energy is preferably between 50 and 300 ms. The hair styling device (20) may comprise an optical shield (32) configured to block stray light during light exposure of the hair. An inner surface of the optical shield (32) may be reflective and/or may have a parabolic shape. The optical shield (32) may be movable between an open position in which a lock of hair can be placed in the hair styling device (20) while the optical energy is not applied, and a closed position in which light is prevented from escaping the hair styling device (20) while the optical energy is applied to the hair. The hair styling device may be a hair straightener having opposing first and second straightening surfaces, of which at least the first straightening surface comprises the light emitting diode (33), and at least the second straightening surface is arranged for reflecting light from the light emitting diode (33).
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公开(公告)号：US10517674B2
公开(公告)日：2019-12-31
申请号：US14778130
申请日：2014-03-17
发明人： Babu Varghese , Rieko Verhagen
摘要： The invention provides a non-invasive device comprising an optical system having a laser light source for generating a light beam, being configured such that, in use, the light beam exits the device and impinges on an outer surface of the skin to be treated; the optical system being configured to focus, in use, the light beam at a position of a treatment location inside the skin, whereby Laser Induced Optical Breakdown is induced at the position of the treatment location; an opening disposed such that, in use, light returning from the skin enters the device as a measurement light beam; and a first and second intensity detection channel configured and arranged to detect the intensity in, respectively, a first and a second bandwidth range of the measurement light beam, wherein the first and the second bandwidth ranges both comprise a wavelength of light produced in the skin as a result of Laser Induced Optical Breakdown, and the first bandwidth range comprises the Second Harmonic Generation wavelength of the laser light source, the second bandwidth range is adjacent to the first bandwidth range, and the second bandwidth range excludes the Second Harmonic Generation wavelength of the laser light source. The invention also provides a corresponding method to treat skin (30), in particular to reduce wrinkles. For the efficacy of such a treatment, two main parameters are crucial: the intensity at the position of the treatment location and the focus depth, and it is also crucial that these parameters can be measured using the same measurement system.
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公开(公告)号：US10420602B2
公开(公告)日：2019-09-24
申请号：US15324500
申请日：2015-06-08
摘要： The invention provides a non-invasive treatment device (100) for heating a first (15) and a second (25) inner region of skin using r.f. electrical current, comprising: a first r.f. treatment electrode (10) configured and arranged to allow r.f. current to pass through the first inner region (15) to a return electrode (340), a second r.f. treatment electrode (20) configured and arranged to allow r.f. current to pass through the second inner region (25) to the return electrode (340), the device further being arranged such that the smallest distance between the first r.f. treatment electrode (10) and the return electrode (340) is less than the smallest distance between the second r.f. treatment electrode (20) and the return electrode (340); wherein the electrical skin contact area of the return electrode (340) is 5 or more times larger than the electrical skin contact area of the first r.f. treatment electrode (10), and the electrical skin contact area of the second r.f. treatment electrode (20) is 5 or more times larger than the electrical skin contact area of the first r.f. treatment electrode (10). By incorporating the second and first treatment electrodes in the same device, or probe, the positional relationship between the first and second regions being heated is fixed, or at least more predictable. By means of a suitable configuration, the regions may coincide to a smaller or greater degree. In some cases, the configuration may allow the same skin condition to be treated using heating of the first and second inner regions without moving the device over the skin. By providing an electrical skin contact area of the return electrode which is 5 or more times larger than the electrical skin contact area of the first r.f. treatment electrode, the locations heated by the r.f. electrical current will be proximate to the first treatment electrode, reducing the possibility of undesirable hotspots proximate the return electrode (340).
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公开(公告)号：US11596349B2
公开(公告)日：2023-03-07
申请号：US16957132
申请日：2018-12-20
IPC分类号： A61B5/05 , A61B5/00 , A61B5/0537
摘要： 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 permittivity 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 permittivity and the frequency of the electrical signal.
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公开(公告)号：US11179565B2
公开(公告)日：2021-11-23
申请号：US15563982
申请日：2016-03-29
发明人： Jonathan Alambra Palero , Ralph Timotheus Huijgen , Martin Jurna , Babu Varghese , Marco Baragona , Hendrik Halling Van Amerongen
摘要： The invention provides a non-invasive skin treatment device (100) comprising an r.f. treatment electrode (10); a return electrode (40); an r.f. generator (20) configured and arranged such that, during treatment, an r.f. treatment signal is applied between the r.f. treatment electrode (10) and the return electrode (40) for heating an inner region (15) of skin; an impedance measurement circuit (35) configured and arranged to measure, before treatment of the inner region, an initial skin impedance (Zo) between the r.f. treatment electrode (10) and the return electrode (40); and a treatment settings determiner (30) configured and arranged to determine, before treatment of the inner region (15), treatment settings associated with the r.f. treatment signal depending on the initial skin impedance (Zo) and on a dimension of the r.f. treatment electrode (10) in the contact plane, the treatment settings comprising at least one of a treatment duration (TD) associated with a desired treatment result, and an r.f. electrical parameter associated with the r.f. treatment signal. The skin treatment device (100) further comprises a controller (25) configured and arranged to consecutively activate the impedance measurement circuit (35) and the treatment settings determiner (30) before treatment of the inner region (15), configure the r.f. generator (20) to provide the r.f. treatment signal according to the treatment settings, and activate the r.f. generator (20) to apply the r.f. treatment signal to the inner region (15) for the treatment duration (TD). The invention is based on the insight obtained from multiple measurements made during the creation of microscopic thermal lesions in an inner region of skin by applying r.f. measurement and treatment signals. By analyzing the histological and heating results, a relationship was obtained between the initial impedance (Zo), the dimension of the r.f. treatment electrode (10), and the treatment settings required to obtain a particular skin treatment result. This relationship has been found to be relatively constant for different subjects, different treatment locations on the body and different skin moisture contents. The invention makes it possible to preset or predetermine, i.e. in advance, the treatment duration (TD) and/or the r.f. electrical parameters associated with the r.f. treatment signal accurately enough to avoid undesired skin damage during the treatment. The device can be simpler, as it is no longer essential to continuously monitor the impedance during treatment to determine the onset of undesired skin damage, such as ablation, which is the safety feature known from conventional devices.
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公开(公告)号：US10434326B2
公开(公告)日：2019-10-08
申请号：US15876497
申请日：2018-01-22
发明人： Babu Varghese , Rieko Verhagen
摘要： 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).
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公开(公告)号：US12128575B2
公开(公告)日：2024-10-29
申请号：US17762108
申请日：2020-09-29
发明人： Frank Anton Van Abeelen , Yannyk Parulian Julian Bourquin , Karel Johannes Adrianus Van Den Aker , Babu Varghese
CPC分类号： B26B19/388 , G06T7/0012 , G06T2207/30088
摘要： A computer-implemented method of determining a location of a personal care device with respect to a skin surface of a subject, the personal care device being configured to perform a personal care treatment to the skin when in contact with the skin surface. The method includes receiving data representative of a measured degree of curvature of the skin surface within a first region of the skin surface of the subject, with which the personal care device is in contact; determining, by comparing the measured degree of curvature with curvature information for a plurality of regions of the skin surface of the subject contained in a database, an indication of a location of the first region of the skin surface on the subject; and performing, based on the determined indication of the location of the first region, an action in respect of the personal care device. A processing apparatus, a system, a personal care device, and a computer program product are also disclosed.
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公开(公告)号：US11819679B2
公开(公告)日：2023-11-21
申请号：US15314993
申请日：2015-06-03
CPC分类号： A61N1/00 , A61B18/14 , A61N1/0476 , A61N1/18 , A61N1/328 , A61N1/403 , A61B2018/0047
摘要： A device for RF skin treatment includes an outer electrode arranged on an operational side of the device. The outer electrode has an annular or equilateral polygonal shape. An inner electrode is arranged at a center of the outer electrode and is surrounded by the outer electrode. An RF generator is arranged to supply an RF treatment voltage between the inner electrode and the outer electrode. A skin contact surface of the inner electrode has a largest cross-sectional dimension in a range of 200-500 μm, and the RF treatment voltage is less than 50 V.
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9.发明授权公开(公告)号：US11712197B2
公开(公告)日：2023-08-01
申请号：US16957138
申请日：2018-12-27
发明人： Babu Varghese , Cornelis Willem Hameetman , Walter Hermans , Arnold Johannes Martinus Jozeph Ras
IPC分类号： A61B5/00
CPC分类号： A61B5/443 , A61B5/0077 , A61B5/448 , A61B2562/0233
摘要： The invention provides a system (1) comprising a sensor (100) for measuring a skin parameter, the sensor (100) comprising a plurality of spatially separated light sources (110) configured to provide light source light (111), and one or more detectors (120) configured at a first distance (d1) from each of the light sources (110), wherein the first distance (d1) is selected from the range of 5-80 mm, wherein the sensor (100) is configured to provide the light source light (111) with optical axes (OL) under an angle (a) relative to an optical axis (O2) of the one or more detectors (120) selected from the range of 10-80°, wherein the sensor (100) comprises at least three light sources (110), wherein the light sources (110) are configured to provide unpolarized light source light (111), wherein the system (1) further comprises an analysis system (2) wherein the analysis system (2) is configured to generate a corresponding skin sensor value on the basis of a detector response of the one or more detectors (120) at one or more wavelengths selected from a spectral range of 350-780 nm.
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公开(公告)号：US11642168B2
公开(公告)日：2023-05-09
申请号：US16473647
申请日：2017-12-27
发明人： Babu Varghese , Rieko Verhagen
CPC分类号： A61B18/203 , A61B5/0095 , A61B5/4836 , A61N5/0616 , A61B5/0059 , A61B2017/00057 , A61B2017/00154 , A61B2018/0047 , A61B2018/00642 , A61B2018/00779 , A61B2090/065 , A61N5/067 , A61N5/0617 , A61N2005/0626 , A61N2005/0632
摘要： A pulsed laser skin treatment device is for laser induced optical breakdown of hair or skin tissue. The device has a light exit window to be placed against a surface to be treated such as skin during use. A feedback system is used for determining a state of contact between the light exit window and the surface. To this end the feedback system is capable of detecting a feedback signal representative for the state of contact. If the feedback signal or the state of contact is such that the risk of skin surface or device damage by the device operation is too high, the user or the device has a way to interrupt the treatment or to reduce light output to reduce or eliminate this risk.
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