Abstract: The invention relates to a device (100) for radio-frequency (RF) skin treatment comprising an active electrode (1, 31) arranged on an operational side (15) of the device and having a first skin contact surface for electrical contact with a skin of a user during use. The device further comprises a return electrode (2, 32) arranged on the operational side (15) of the device and having a second skin contact surface for electrical contact with the skin of the user during use. The second skin contact surface is at least five times larger than the first skin contact surface. An RF generator (21) is arranged to supply an RF treatment voltage between the active electrode and the return electrode when the active electrode and the return electrode are in electrical contact with the skin, so as to heat the skin below the active electrode.

Abstract: A device for radio frequency (RF) skin treatment of skin of a user is provided. The device comprises an active electrode and a return electrode. The device further comprises an RF generator arranged to supply RF energy to the user's skin via the active electrode and the return electrode. The return electrode has a planar skin contact surface extending in a main plane. The active electrode has a skin contact surface with a maximum dimension in a range from 100 ?m to 500 ?m, and a surface area of the planar skin contact surface of the return electrode is at least 5 times larger than a surface area of the skin contact surface of the active electrode. The skin contact surface of the active electrode is arranged in a position at a distance from the main plane, seen in a direction perpendicular to the main plane. The device may be advantageously used, for example, to control the dimensions and shape of a thermal lesion in the user's skin generated by the RF energy.

Abstract: A measurement system for light-based measurement of collagen, using a first light intensity and a second light intensity according to the invention, compromises a light source (120) for emitting a light beam having a source wavelength range and an optical system (130) to polarize light within the source wavelength range, thereby generating a polarized light beam (140), and to direct and focus the polarized light beam (140) to a target position inside the skin (160) at a predetermined focus depth below an outer surface of the skin.

Abstract: 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.

Abstract: The invention relates to a device (1) for skin treatment comprising a non-circular symmetrical outer electrode and at least two inner electrodes (20; 22) surrounded by the outer electrodes. An RF generator (16) 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 (20; 22) 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 said respective axis of symmetry or at a distance from said respective axis of symmetry and symmetrically relative to one of the other inner electrodes. This electrode configuration provides improved uniformity in simultaneously created lesions.

Abstract: The invention relates to a device (100) for RF skin treatment comprising an outer electrode (2) arranged on an operational side (15) of the device. The outer electrode has an annular or equilateral polygonal shape. An inner electrode (1) is arranged at a center of the outer electrode and is surrounded by the outer electrode. An RF generator (21) is arranged to supply an RF treatment voltage between the inner electrode (1) and the outer electrode (2). A skin contact surface of the inner electrode has a largest cross-sectional dimension in a range of 200-500 ?m, and the RF treatment voltage is less than 50 V. The invention provides a device with improved safety in that it enables the creation of non-ablative fractionated skin lesions, particularly using a relatively low RF treatment voltage for treating the skin as compared to known devices and without the necessity of a feedback or monitoring system.

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

Abstract: The invention relates generally to the treatment of skin using laser light, and more particularly to a non-invasive device and method for such treatment. During skin treatments, heating of the epidermis is undesired because it may cause discomfort for the person being treated, adverse skin reactions and unwanted changes in skin pigment. The invention provides a laser treatment beam having a first 22a and a second 22b beam region of non-zero light intensity disposed at a periphery of a transverse cross-section of the beam, and a third beam region 22c, arranged between the first 22a and the second 22b beam region, of lower light intensity than said non-zero light intensity. The treatment beam 22 exits the device 10 along its optical treatment axis 13.

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.

Abstract: The invention provides a non-invasive skin treatment device (200) comprising: a light source (10) constructed for emitting treatment light (15), an optical system (20) constructed for focusing the treatment light along an optical axis (OA) to a focus position (320) inside the skin tissue (300), and an indenter (30) comprising a skin contact surface (34) having an aperture (A1) at a distance from the optical system for allowing the treatment light to be focused through the aperture into the skin tissue.

Abstract: The invention provides a non-invasive r.f. current treatment device to be used with an agent or treatment substance (20), such as an ionic salt solution. The substance is transported using an electric field generated by the device, such as in iontophoresis, to move the treatment substance (20) into the skin so that the skin's electrical transmission of the r.f-current is increased. The path of any r.f. current is influenced by the distribution of the treatment substance (20) in the skin. Applying r.f. current causes heating in skin tissues coinciding with the path of the r.f. current, allowing skin tissue to be treated that is either coincident with the r.f. current path or immediately adjacent thereto. The region of skin treated with r.f. current may be the upper tissue layers. This renders superfluous the conventional hydration step necessary for r.f. skin preparation, which is poorly controllable and highly variable depending on the anatomic site and the individual being treated.

Abstract: An increasing number of non-invasive skin treatment devices are being provided for use by consumers instead of by medical professionals. Such home use raises new concerns, such as safety and treatment efficacy. The invention improves on existing devices and treatment methods. The invention provides a device and method, wherein a light source is configured and arranged to provide a first (31) and a second (32) region of non-zero intensity within a transverse cross-section of a laser light beam (21) having a single higher-order laser beam mode, and a third region (33), disposed between the first (31) and second (32) regions, of lower light intensity than the non-zero light intensity. The first (31) and second (32) regions are configured to create, during use, a lesion in skin tissue in the focal spot of the laser light beam, and the third (33) region is configured to avoid creating in the focal spot, during use, a lesion in skin tissue between the lesions created by the first and second regions.

Abstract: The invention provides a non-invasive device (100) for skin rejuvenation using a treatment pressure below ambient pressure, and provides a method and a computer program product. The non-invasive device comprises a suction chamber (110) having a skin contact surface (115) comprising an opening (120) for exposing the skin tissue (200) to the suction chamber for applying a suction force to an outer surface (210) of the skin tissue. The opening in the suction chamber is less than 10 square millimeters. The suction chamber is dimensioned so as to allow it to be manually applied to the outer surface of the skin tissue. The non-invasive device further comprises a controller (140) for controlling a level of treatment pressure (Pt) inside the suction chamber (110) and for controlling an application time interval (?t) of the treatment pressure for damaging an interface (225) between an epidermis layer (220) and a dermis layer (230) of the skin tissue.

Abstract: The application provides a non-invasive measurement device (30) and method for the measurement of skin properties using laser light, the device comprising a probe module (70) and an imaging module (50). The application also provides a non-invasive treatment device (130, 230, 330, 430) and method comprising the measurement device/method. The probe module (70) provides a probe light beam (82) that enters the skin along the probe axis (71). The probe light beam (82) is separate from any treatment radiation beam (22), so that the probe light beam (82) can be optimized for the measurement. A more reliable skin measurement system is provided because it measures a plurality of positions along the probe axis (71), within a probe region (95). The measurement device and method may also comprise a treatment module (110) or treatment step. The skin parameters measured may then be directly used to control the treatment parameters.

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 (?T) 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.

Abstract: A method of treating a skin tissue area, in particular non-invasively treating the skin tissue area (1), is provided. The skin tissue area has a dermis layer area (3), an epidermis layer area (5) providing a skin surface (7) and covering the dermis layer area. The method comprises: a first step of causing one or more dermal lesions (11) localized in the dermis layer area while avoiding epidermal damage, and a second step of causing, separately from causing said plurality of dermal lesions, a plurality of epidermal lesions (15) localized in the epidermis layer area. An apparatus is also provided.

Abstract: A skin treatment apparatus (1) for treating a skin surface, comprising: a hand held base body (10); a rotor head (20), movably connected to the base body (10), and including at least one skin contacting element (22); a motor (30), operably connected to both the base body (10) and the rotor head (20), and configured to rotatably drive the rotor head (20) relative to the base body (10) around a rotation axis (L); at least one motion sensor (40), configured to generate a movement signal reflecting a path of relative movement between the motion sensor and the skin surface; and a control unit (50), operably connected to the at least one motion sensor (40) and the motor (30), and configured to control the motor (30) to rotatably drive the rotor head (20) in dependence of the movement signal of the at least one motion sensor (40).

Abstract: An apparatus for treating a skin tissue area (1) is provided, comprising: an energy source configured to heat the skin tissue area to a temperature in a range of about 55-65° C., a cooler configured to cool the skin tissue area to a temperature below about 40° C. Further, a skin tissue deformer configured to mechanically deform the skin tissue area into a deformed shape and to maintain the skin tissue area in the deformed shape, and a controller configured to operate the apparatus to perform a method of treating a skin tissue area (1). The method comprises the steps of: mechanically deforming the skin tissue area into a deformed shape; heating the skin tissue area to a temperature in a range between about 55° C. and about 65° C.; cooling the skin tissue area to a temperature below about 40° C. while maintaining the skin tissue area in the deformed shape, and the steps of reheating the skin tissue area to a temperature in a range between about 55° C. and about 65° C.

Abstract: A method of treating a skin tissue area (3) having a skin surface (5) is provided. The method comprises the steps of: deforming the skin tissue area into a deformed shape comprising a plurality of folds (17) in the skin tissue area; arranging radiofrequency electrodes (13) in contact with the skin surface on opposite sides of the deformed skin tissue area; and, while maintaining the skin tissue area in said deformed shape, providing a spatially continuous radiofrequency energy flow between the radiofrequency electrodes on opposite sides of the deformed skin tissue area through the deformed skin tissue area, thereby heating at least a portion (19) of the deformed skin tissue area; and releasing the skin tissue area from said deformed shape, thereby deforming said heated portion (19) into a wave-shaped zone of heated skin tissue having a depth relative to the skin surface that varies between a minimum and a maximum value in a direction between said opposite sides.

Abstract: A method of skin tissue (1) treatment is provided which comprises the steps of: determining a treatment zone (9) within the skin tissue below the skin surface (3); modifying an electrical conductance property of at least two first skin tissue portions (11) present on opposite sides of the treatment zone with respect to a direction parallel to the skin surface; and providing radio frequency (RF) energy to the treatment zone via said first skin tissue portions. The step of modifying said first skin tissue portions comprises decreasing electrical impedance for the radiofrequency energy, in particular increasing electrical conductance, of said first skin tissue portions relative to a second skin tissue portion present between said first skin tissue portions; and such that said first skin tissue portions extend into the skin tissue substantially from the skin surface to treatment zone. A system for skin tissue (1) treatment is also provided.