• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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  • 优先权
    • 专利摘要:
    PORTABLE ELECTROMAGNETIC DEVICE FOR SKIN TREATMENT The present invention relates to a hand-held skin treatment device comprising an electromagnetic radiation source, a power supply electrically coupled to the source and a controller arranged to control the energy provided by the source of the skin. electromagnetic radiation. The source, the power supply and the controller are placed in a waterproof cabinet allowing the use of the handheld electromagnetic device for skin treatment in a humid environment. To provide sufficient cooling to the source, the device comprises an internal heat exchanger in a heat conducting relationship with the source, an external heat exchanger outside the waterproof case, and an internal heat exchanger heat path for the external heat exchanger that airtightly crosses a waterproof cabinet wall. With this device, users can conveniently integrate their skin care activities with the daily routine of showering or bathing. The device is especially useful in the context of hair removal.
    公开号:BR112015008622B1
    申请号:R112015008622-5
    申请日:2013-10-22
    公开日:2021-02-09
    发明作者:Sebastian Alexander Kindermann；Marcel SLADECEK；Christian Mikula
    申请人:Koninklijke Philips N.V；
    IPC主号:
    专利说明:

    BACKGROUND OF THE INVENTION FIELD OF THE INVENTION
    [001] The present invention relates to devices for skin treatment with the application of electromagnetic radiation to the skin and, in particular, to portable devices that can be used in humid environments. The invention is, for example, applicable for the removal of hair by the application of localized energy to destroy or damage the hair follicle or root, thus preventing growth. DESCRIPTION OF RELATED TECHNIQUE
    [002] Light-based skin treatment devices are increasingly used for various forms of personal care and therapeutic treatments. These treatments can include hair removal, skin rejuvenation, acne treatment, pigmentation removal and the like. In addition to treatment in the visible spectrum, other regions of the electromagnetic spectrum are also used, including infrared, ultraviolet and radio frequencies. Later in this document, reference to light is not intended to be limited to the visible spectrum unless otherwise specified.
    [003] Hair removal is of particular importance in the context of personal care for men and women. Removal can happen temporarily by shaving, epilating or waxing, or more permanently by high energy techniques, such as laser removal and the use of intense pulsed light (IPL) flash lamps. High-energy techniques are often used by professional cosmetic technicians in dedicated salons. The devices are relatively complex, and care and experience may be required to prevent injury to the patient. One device is known from US 2008/139901 which describes a photocosmetic device for use in various treatments. The device includes a base station and a handle coupled by a cable. The handle includes a treatment head and a source of electromagnetic radiation and can be provided with active or passive cooling to prevent injuries to the patient's head or skin.
    [004] Recent devices have also been developed for personal use. Such devices are often simpler than professional quality models and can operate at lower power levels and / or may have a smaller treatment head. However, they can be effective in temporary or even permanent hair removal if used over a period of time. Such a device has been described in WO2004 / 047921, which includes a handheld compartment incorporating a radiation source and a radiation filter. The radiation filter is designed to adsorb harmful wavelengths of radiation and to allow these wavelengths to reach the skin where they should perform the desired treatment. Due to the significant energy density of the radiation, the filter can be extremely hot. A cooling system is provided to prevent overheating.
    [005] Although the devices mentioned above have made such forms of light-based skin treatment accessible to non-professional consumers, the use of these devices remains limited. Consumers increasingly want to perform skin and appearance care activities in the bathtub or shower, but existing handheld devices are not suitable for use in a humid environment and could not be used underwater without damaging them. the device or pose a risk to the individual. It would then be desirable to provide an improved device that increases the flexibility of use and that allows a user to safely integrate with hair removal activities in their lifestyle. At the same time, the enhanced device must provide sufficient cooling for the source of electromagnetic radiation disposed in the device's case. The same applies to other personal skin care treatments, such as skin rejuvenation, wrinkle treatment and the like. BRIEF SUMMARY OF THE INVENTION
    [006] According to the invention, a handheld electromagnetic skin treatment device is provided comprising an electromagnetic radiation source, a power supply electrically coupled to the source and a controller arranged to control an energy supply from the supply of energy for the source of electromagnetic radiation. The source, the power supply and the controller are placed in a waterproof cabinet allowing the use of the handheld electromagnetic device for skin treatment in a humid environment. The device comprises an internal heat exchanger in a heat conduction relationship with the source, an external heat exchanger outside the waterproof case, and a heat path from the internal heat exchanger to the external heat exchanger that airtightly crosses a waterproof cabinet wall. In this way, users can conveniently integrate their hair removal or skin treatment activities with the daily routine of showering or bathing. It is believed that use on wet skin or in combination with water does not affect the efficiency of hair removal. Water generally has a low absorbance in the wavelength range from 570 nm to 1000 nm, which is often used for hair removal and can even help as a filter to limit radiation that injures the skin. The same applies to other treatments in this frequency range and also to the treatment of skin rejuvenation in the radio frequency range.
    [007] The internal heat exchanger in a heat conduction relationship with the source, the external heat exchanger outside the waterproof enclosure and the heat path from the internal heat exchanger to the external heat exchanger crossing hermetically a waterproof enclosure wall provides sufficient cooling for the source of electromagnetic radiation arranged in the waterproof enclosure. The surrounding water can, for example, be used to cool the source, by interacting with the external heat exchanger, more efficiently than cooling it with an internal air flow, as is common with known devices . Cooling by an internal air flow would not be possible in the case of a waterproof cabinet that houses the source of electromagnetic radiation. For systems operating with intermittent discharge, such as high-energy pulsed light devices, the time between flashes of the flash lamp can thus be reduced, which leads to a shorter application time and a more efficient procedure.
    [008] Conventional high-energy pulsed light devices for the consumer are prescribed to be used according to a prescribed treatment regimen, for example every second week for the first five weeks after the start of use of the high-pulsed light. energy, and every 4 to 6 weeks thereafter. The manufacture of an electromagnetic handheld device for waterproofing skin care and optimizing it for use in the shower or bathtub opens up new opportunities for the entire application procedure. As the bath routine can be performed a few times a week, and the skin treatment, for example hair removal, needs to be done only 1 to 2 twice a month, it would be possible to treat only a small part of the body during each bath and thus, progressively cover all areas of the body where the hair needs to be removed. The user is thus free to integrate the device into their individual beauty routine, in particular, since the device can be used under dry conditions, in the bathtub, in the whirlpool or in the shower. Similar advantages are found for other skin treatments.
    [009] Due to the nature of these treatments, considerable heat is generated by the source of electromagnetic radiation and needs to be dissipated by exchanging heat with the environment. Internal and external heat exchangers can take many forms, but they must at least be able to transfer heat from the inside of the waterproof case where the source is located to an external location in the humid environment. Several alternatives are described in detail below, but it is understood that they should not be interpreted in a limiting way.
    [010] Another additional advantage is that, after a flash of light, fresh water will flow over the exposed skin area and cool immediately, thus reducing pain and skin irritation. Users are already very familiar with razor shaving and epilation in a humid environment and the water running relieving, as a pleasant part of what would otherwise be a painful or tedious activity. The present device improves this experience in skin treatments based on electromagnetic radiation.
    [011] In one embodiment, the heat path comprises a cooling fluid circuit at least partially inside the waterproof case. In this context, the cooling fluid circuit must be understood as a closed circuit through which a cooling fluid can circulate without direct contact with the ambient water. A pump can be provided to circulate the fluid, or the flow can be natural, for example by convection. Intermediate heat exchangers can be provided between the cooling fluid circuit and the source and between the cooling fluid circuit and the environment, depending on requirements.
    [012] Preferably, the internal heat exchanger comprises a heat sink and the external heat exchanger comprises cooling fins. The heatsink and cooling fins can be integrally formed as a single piece of material, for example a metal that has good conduction properties.
    [013] In another mode, the heat path comprises one or more heat tubes. They can be filled with a fluid medium suitable for the temperature range found by the device. Alternatively or in addition, the heat path may include a thermoelectric element, such as a Peltier element, to further improve the transfer of heat from the source to the external heat exchanger.
    [014] In another embodiment, the device comprises an additional portion of the cabinet with passages through which water from an environment can flow without entering the waterproof cabinet, the external heat exchanger being located at least partially in the additional portion of the cabinet. The additional portion of the case can form a cooling compartment connected to the waterproof case.
    [015] In a specific embodiment, the waterproof enclosure forms part of a shower head that can be connected to a water source, where the external heat exchanger is inside the shower head so that the water supplied can flow on the external heat exchanger. The source of electromagnetic radiation can be located in a central region of the shower head, for example on a face from which water comes out of the head. In a shower head mode, it may be desirable to have a replaceable module containing at least the power source, so that it can be recharged without completely removing the shower head.
    [016] Another alternative modality can be created as part of a washing glove or a scrubbing sponge, with the external heat exchanger located inside the glove or sponge so that it is placed in contact with water, but does not come into contact with the user's hand during normal use. In addition, in such an embodiment it may be desirable to have a modular structure so that the sponge or glove can be separated from the other parts of the device for cleaning or disposal.
    [017] The device can also be integrated with other skin care devices, in particular mechanical hair removal devices such as a shaver or epilator or an electric epilator. Light-based hair removal treatments generally still require mechanical removal of hair on the skin before such treatments. Combining a light-based hair removal device with an electric epilator or shaver or epilator that can be used in damp environments, both activities can be performed together, and debris removed with running water.
    [018] Preferably, the waterproof case comprises a faceplate to touch a user's skin during use, the faceplate having a window, allowing skin to radiate through the window. The device may additionally comprise security detectors arranged around a circumference of the window, for example on or near the faceplate. These security detectors can be included as proximity sensors to determine whether the faceplate is in contact with a surface such as the user's skin. In this way, accidental exposure of the user's eyes to the source light can be avoided. Security detectors are also preferably waterproof. This can be accomplished by providing a cover membrane that is welded to or integrally formed with the waterproof case, in particular the faceplate. Various forms of detectors can be used. In one embodiment, the security detectors comprise mechanical switches having actuating rods that protrude through the openings in the front plate, where these openings are covered by flexible waterproof membranes. In another modality, safety detectors comprise capacitive sensors, with each sensor associated with a blind hole in the front plate and arranged to measure a change in capacitance due to the skin bending into the blind hole when applying pressure, wherein a waterproof sealing element is present between each capacitive sensor and the associated blind hole.
    [019] The invention aims to cover all forms of high energy skin treatment devices based on electromagnetic radiation. This may include, for example, radiation from radio waves. The invention is particularly adapted to skin care devices that use light, including laser light and intense pulsed light (IPL). The source of electromagnetic radiation can be any source capable of generating adequate energy for the intended skin treatment and may include incandescent light sources, gas discharge light sources and light sources from solid state devices such as LEDs and laser diodes . Preferably, the source has an output of at least 2 J / cm2 during a pulse of 0 to 10 ms. In a more preferred form, the pulse duration is between 1 and 100 ms, preferably between 1 and 30 ms.
    [020] In a specific mode, the device is intended for the removal of hair with high-energy pulsed light. In this case, the source must emit enough energy to cause at least temporary or semi-permanent damage to the capillary root. With the utmost preference, the source of electromagnetic radiation comprises a flash lamp, such as a xenon lamp, and the controller operates the device as a LIP (intense pulsed light) device. It is believed that the operation of LIP devices is otherwise conventional and does not require further explanation here. However, in the present context, it is understood that an application of intense pulsed light is necessary, for example with the energy density indicated above. With the utmost preference, the source emits light in the range between 560 nm and 1000 nm of a wide or narrow bandwidth.
    [021] Various forms of controller can be used to control the power supply to the source. This may include high-powered electronic components, such as an elevator converter or a typical laser diode feeder unit. According to a preferred form of the invention, the device further comprises a capacitor arranged to be repeatedly charged by the power supply and repeatedly discharged through the source of electromagnetic radiation. Adequate electronic components of power can be provided to control this operation. Preferably, the power supply comprises a rechargeable battery. However, it happens that, in certain modalities, the battery can be omitted and a capacitor can be sufficiently charged to carry out the treatment during several discharge flashes.
    [022] The term 'waterproof enclosure' is intended to cover a single enclosure or a plurality of waterproof enclosures or compartments, to the extent that they allow the device to function effectively underwater or in a humid environment. In this context, it is evidently understood that the device must at least be waterproof to the extent that it is necessary for use in the bath. In a preferred embodiment, the source, the power supply and the controller are all contained in a single waterproof cabinet.
    [023] In another preferred embodiment, the cabinet may comprise one or more flexible waterproof inner liners. These can hermetically wrap sensitive electronic components to provide additional protection against water, for example, if the waterproof case itself breaks down. The waterproof cabinet can be made of plastic material and may be subject to impact as a result of, for example, falling on a ceramic floor or similar. A flexible waterproof inner lining can ensure that essential electronic components remain protected from the impact of water. Additionally or alternatively, the waterproof case can be made with regions of resilient material to cushion possible shocks.
    [024] The device is preferably supplied in combination with a charging station. Such a charging station may comprise a support on which the device can be placed and a charging circuit arranged to supply electricity to the power supply when the device is placed on the support. Although in general the entire device will be placed in the charging station, it is understood, as described elsewhere, that only a part of the device could be recharged and then joined to the rest of the device as a modular assembly.
    [025] The invention is also related to the use of the above device for skin treatment in a wet environment, for example for the use of hair removal. BRIEF DESCRIPTION OF THE DRAWINGS
    [026] The characteristics and advantages of the invention will be explained with reference to the following drawings of numerous exemplifying modalities, in which:
    [027] Figure 1 illustrates a perspective view of a first embodiment of the present invention;
    [028] Figure 2 illustrates a horizontal cross section through the device of Figure 1 along line II-II;
    [029] Figure 3 illustrates a horizontal cross section through a second embodiment of the invention;
    [030] Figure 4 illustrates a horizontal cross section through a third embodiment of the invention;
    [031] Figure 5 illustrates a horizontal cross section through a fourth embodiment of the invention;
    [032] Figure 6 illustrates a horizontal cross section through a fifth embodiment of the invention;
    [033] Figure 7 illustrates a perspective view of a sixth embodiment of the invention;
    [034] Figure 8 illustrates a vertical cross section through the device of Figure 7 and
    [035] Figure 9 illustrates a perspective view of a seventh embodiment of the invention. DESCRIPTION OF ILLUSTRATIVE MODALITIES
    [036] Figure 1 illustrates a perspective view of a hair removal device by LIP (intense pulsed light) 1 according to a first embodiment of the invention. Although the invention is described further only in the context of hair removal, it will be understood that it is equally applicable to other skin treatments. The device 1 comprises a waterproof case 2 which has a cable portion 4 and a body portion 6. The body portion 6 ends in a front plate 8 having a transparent window 10, behind which a flash lamp of xenon 12 is located. The security detectors 14 are distributed around a circumference of the window 10, the purpose of which will be described below. The cable portion 4 includes an actuator switch 16 and electrical contacts 18, one of which is shown, for electrical recharging of the device. The passages 20 are formed in the body portion 6. Also shown in Figure 1, there is a charging station 22 through which the device 1 can be electrically recharged. The charging station 22 has a support 24 on which the cable portion 4 can be placed, said support having charging terminals 26 aligned with and engaged with the contacts 18 on the cable portion 4.
    [037] Figure 2 shows a schematic view of the interior of the device of Figure 1, taken along line II-II, illustrating various internal components inside the waterproof case 2. The body portion 6 comprises a compartment on the front waterproof 28 in which the flash lamp 12 is located to be aligned with the window 10. A rear waterproof compartment 30 is formed at the rear of the body portion 6 and contains electronic components including a controller 32, a capacitor 34 and a rechargeable battery 35. Between the waterproof front compartment 28 and the waterproof back case 30, an additional portion of the enclosure is provided that constitutes a cooling compartment 36, and is in communication with the external part of the device through the passages 20. Although the waterproof front and rear compartments 28 and 30 of the waterproof case 2 are shown as separate parts in this view, it is understood that they can in v form a single waterproof compartment with said front and rear compartments being interconnected above and / or below the cooling compartment 36. As can be seen, the flash lamp 12 is mounted adjacent to a heat sink 38 that is in a heat conduction relationship with the flash lamp 12 and that can be part of a reflector or a radiation filter. The heatsink 38 passes hermetically through a rear wall of the front compartment 28 and has cooling fins 40 that extend into the cooling compartment 36.
    [038] Figure 2 also shows security detectors 14 in more detail. Each security detector 14 comprises a mechanical microswitch 42 including an actuating rod 44 that protrudes through an opening 46 in the front plate 8. The opening 46 is hermetically sealed and covered by a flexible waterproof membrane 48. The fillets 50 provide an electrical connection between the flash lamp 12, the safety detectors 14 and the electronic components in the rear waterproof compartment 30. Although the safety detectors 14 using mechanical keys are shown and described, it is understood that other forms of Security detectors could be used to perform the same function, including capacitive sensors, temperature sensors, piezo sensors and the like. In addition, other security detectors to determine other variables, such as skin temperature, may also be present as needed. According to the invention, the front and rear compartments 28, 30 of the waterproof enclosure 2 are thus completely sealed against the ingress of water in the flash lamp 12, in the controller 32, in the capacitor 34, in the battery 35, in the microwaves 42 and other essential electronic components. They can then be used in a wet environment, even underwater, such as in a bathtub.
    [039] The high energy pulsed light removal device, as shown in Figures 1 and 2, can work in a similar way to conventional high energy pulsed light devices, such as the Philips Lumea ™ device. The controller periodically charges capacitor 34 from battery 35. Under the actuation of switch 16, the discharge takes place via flash lamp 12. The discharge, however, can only happen when a signal is received from mechanical switches 42 indicating that the front plate 8 is fully engaged with the skin surface. In this way, accidental exposure of a user's eyes to the light of the flash lamp 12 is avoided. In the modality shown, six microwaves 42 are arranged around a circumference of the window 10 on the front plate 8. When the front plate 8 is pressed against a surface, such as a user's skin, the membranes 48 are depressed, causing the actuating rods 44 activate microwaves 42. The capacitor is only capable of discharging when all six microwaves 42 are activated. The emitted light passes through window 10 and radiates the skin. Without the desire to be bound by theory, it is understood that the light incident on the capillary root is absorbed by the melanin and converted into heat, causing damage or vaporization to the capillary root. During use, significant heat is produced by the flash lamp 12 which is absorbed by the heat sink 38. Heat is transmitted to the cooling fins 40 through a heat path formed by the bulk material that interconnects the heat sink 38 and the cooling fins 40. If the device is used in a dry environment, a flow of air can pass through the cooling compartment 36 through the passages 20 and pass over the cooling fins 40. If the device is used in a wet environment , or even underwater, water can flow through the passages 20 and provide the necessary cooling. In this way, the heat sink 38 forms an internal heat exchanger arranged inside the waterproof case 2, that is, inside the waterproof front compartment 28, and the cooling fins 40 form a heat exchanger. external disposable outside the waterproof enclosure, that is, disposed inside the cooling compartment 36.
    [040] A second embodiment of the invention is shown in Figure 3, which shows a hand hair removal device 101 in cross section similar to Figure 2. In this embodiment, similar elements are designated by similar reference numbers preceded by 100.
    [041] The device 101 in Figure 3 differs from the first modality in that the waterproof case 102 comprises a single waterproof compartment 128 without passages to the environment. In this modality, a heat sink 138, which forms an internal heat exchanger and which is inside the waterproof case 102 in a heat conduction relationship with the flash lamp 112, is connected via heat pipes 139 to the cooling fins 140, which form an external heat exchanger located outside the waterproof case 102 on an external surface of the waterproof case 102. Heat pipes 139 constitute a heat path from the exchanger internal to external heat and can generally be of a conventional type and filled with a low pressure cooling fluid. Each of the heat pipes 139 passes hermetically through a wall of the waterproof cabinet 102. The mode of operation is similar to the first mode except that the cooling water no longer flows through the passages to an additional portion of the device cabinet, but flows over the outer surface of the waterproof case 102. Although shown exposed in this view, the person skilled in the art will understand that the fins 140 may also be recessed in the waterproof case 102 or covered by suitable shields to avoid contact with a user.
    [042] A third embodiment of the invention is illustrated in Figure 4, which shows a hand hair removal device 201, also in cross-section similar to Figure 2. In this embodiment, similar elements are designated by similar reference numbers preceded by 200 .
    [043] The device 201 of Figure 4 also differs from the first modality in that the waterproof case 202 comprises a single waterproof compartment 228 without passages to the environment. In this modality, a heat sink 238, which forms an internal heat exchanger and which is located inside the waterproof cabinet in a heat conduction relation with the flash lamp 212, is connected through heat pipes 239 to the cooling fins 240, which form an external heat exchanger located on an external surface of the waterproof case 202. The heat conductors 239 constitute a heat path from the internal heat exchanger to the external one and cross hermetically the walls of the waterproof cabinet 202. To optimize the heat transfer, in addition to the 239 conductors, the heat path comprises Peltier elements 241 arranged between the conductors 239 and the fins 240 to increase the cooling action. Peltier elements 241 can be driven from battery 235 by controller 232. In this mode, a flexible waterproof inner liner 252 is provided inside waterproof case 202. Flexible inner liner 252 surrounds all essential elements that must be protected against the impact of water, and is integral with flexible membranes 248 covering security detectors 214. As a result, if device 201 is accidentally dropped, and waterproof case 202 cracked, water will still not be able to reach internal components.
    [044] A fourth embodiment of the invention is illustrated in Figure 5, which shows a hand hair removal device 301, also in a cross section similar to Figure 2. In this embodiment, similar elements are designated by similar reference numbers preceded by 300 .
    [045] The device 301 in Figure 5 differs from the previous modes in that a cooling compartment 336, which forms an additional cabinet portion next to the waterproof case 302, is located on the rear side of the waterproof case. 'water 302 at a distance from the front plate 308. The heat sink 338 constitutes an internal heat exchanger in a heat conducting relationship with the flash lamp 312 and is cooled by a cooling fluid circuit 339 connected to a chiller external 340, which forms an external heat exchanger outside the waterproof case 302 located inside the cooling compartment 336. A pump 354 is provided in the waterproof case 302 to circulate a cooling fluid through the cooling circuit. cooling fluid 339. The cooling fluid circuit 339 forms a heat path from the internal heat exchanger to the external heat exchanger and hermetically passes through a back wall waterproof cabinet floor 302. During use, a flow F of water or air can enter the cooling compartment 336 through the passages 320 to cool the external cooler 340.
    [046] Figure 6 illustrates a device 401 according to a fifth embodiment of the invention which is an adaptation of the device of Figure 5 for use in combination with a shower. Similar reference numbers are used preceded by 400. In this embodiment, the device 401 is provided with a connector 456 for a shower hose 458 in communication with the cooling compartment 436. The chilled water from the shower hose 458 can therefore be conducted through cooling compartment 436 to cool external cooler 440.
    [047] Another embodiment of the additional invention is shown in Figure 7 in which similar characteristics to the previous embodiments are designated by similar reference numbers preceded by 500.
    [048] The device 501 of Figure 7 is in the form of a shower head and can be used during the shower. It comprises a body 502 comprising a cable portion 504 and a head portion 506 including a faceplate 508. As in the previous embodiments, faceplate 508 includes a light outlet window 510 and security detectors 514. It also includes a plurality of nozzles 520 for emitting water as is conventional for a shower head. The cable portion 504 includes a connector 556 for a shower hose.
    [049] Figure 8 shows the device 501 of Figure 7 in a longitudinal cross section. The interior of the main cabinet 502 is divided into a plurality of waterproof compartments in which the essential components of the device 501 are kept. A waterproof rear annular compartment 530 houses a controller 532 and a capacitor 534. A circular waterproof front compartment 528 houses flash lamp 512 and security detectors 514. In this mode, security detectors 514 comprise capacitive sensors 542, each associated and located in a position adjacent to a blind hole 546 in the face plate 508. Each blind hole 546 opens towards the user's skin and closes at its internal end through the sealing element water, for example a 548 membrane. These sensors are otherwise conventional and operate by detecting changes in capacitance when the skin bends into the blind hole 546 when the faceplate 508 is pressed against the skin of the user S. Enter the front waterproof compartment 528 and the rear waterproof compartment 530, a cooling compartment 536 is formed, which communicates with connector 556 and nozzles 520, and acts as a full chamber for the otherwise conventional shower head. A heatsink 538 forms an internal heat exchanger in a heat conducting relationship with the flash lamp 512. An integral extension of the heatsink 538 passes hermetically through a rear wall of the waterproof front compartment 528 and constitutes a heat path from the heat sink 538 to the cooling fins 540, which form an external heat exchanger outside the waterproof front compartment 528 and which are located in the cooling compartment 536. At the front of the head 506, a recess 560 is provided to receive a battery 535 having contacts 518. The recess 560 is provided with a seal by sealing ring 562 to prevent water from entering the contacts 518. In this embodiment, the battery 535 is configured as a removable component that can be recharged separately at a charging station and inserted into recess 560 when the user takes a shower. In this mode, a trigger is not provided and the actuation takes place automatically when the battery 535 is engaged and the safety detectors 514 are depressed by the engagement with the skin. The person skilled in the art will understand that other components of the device 501 can also be included in the replaceable portion inserted in the recess 560. Similarly, it will be understood that the elements contained in the front compartment 528 can also be included as a removable module.
    [050] Figure 9 shows a device 601 according to a seventh embodiment of the invention. The device 601 comprises a waterproof case 602 in the form of a short cylinder, having a front plate 608, a light exit window 610, a flash lamp 612 and security detectors 614. The waterproof case 'water 602 accommodates a 632 controller, a 634 capacitor and other essential electronic components. In this specific mode, no battery is provided. Capacitor 634 is arranged to receive a sufficient charge for a limited number of discharges, which will depend on the size of the capacitor and the system losses. The waterproof case 602 in this modality has an external metallic surface that forms an external heat exchanger that is in thermal contact with the flash lamp 612 through an internal heat exchanger (not shown) and a heat path ( not shown) to the outer metal surface in accordance with the general principle of the present invention. In this modality, the external metallic surface of the waterproof case 602 is smooth, but the person skilled in the art will understand that it could also be equipped with fins or other heat-dissipating structures, as needed. The front plate 608 is made of plastic material and has a slightly larger diameter than the waterproof case 602. On its rear side, the front plate is equipped with L 618-shaped electrical contacts. The 618 contacts allow the device 601 is charged to a suitable charging station (not shown). The device 601 is intended for use in combination with a bath sponge 666, which has a recess 660 formed on a surface. The recess 660 has an edge 662 provided with bayonet-type connectors 664 that mechanically attach to the L-shaped contacts 618 in the waterproof case 602. In use, a user removes the device 601 from a charging station and the fixed to sponge 666 by inserting it in recess 660 and engaging contacts 618 with bayonet-type connectors 664. Sponge 666 is immersed in water, and device 601 is then applied to the skin in the usual way, and the discharge occurs automatically when the 614 security detectors are all activated. Additional safety interlocks can be provided, for example a liquid (conductivity) sensor in the waterproof cabinet 602 to ensure that activation only occurs in a wet environment. In summary, the invention has been described with reference to certain modalities discussed above. It will be recognized that these modalities are susceptible to various modifications and alternative forms well known to those skilled in the art, without departing from the spirit and scope of the invention. In particular, the hand-held hair removal device of the invention can be combined with other devices used under wet conditions, such as electric epilators or razors or shavers. Consequently, although specific modalities have been described, these are only examples and do not limit the scope of the invention.
    权利要求:
    Claims (14)
    [0001]
    1. PORTABLE ELECTROMAGNETIC DEVICE FOR SKIN TREATMENT (1), comprising: a source of electromagnetic radiation (12); a power supply (35) electrically coupled to the source; and a controller (32) arranged to control an energy supply from the energy supply to the source of electromagnetic radiation; where the power supply, the power source and the controller are contained in a waterproof cabinet (2) allowing the use of the electromagnetic hand held device for skin treatment in a humid environment, characterized by the device (1) comprise an internal heat exchanger (38) in a heat conduction relationship with the source (12), an external heat exchanger (40) outside the waterproof enclosure (2), and a heat path of the exchanger internal heat exchanger for the external heat exchanger, which hermetically passes through a waterproof cabinet wall.
    [0002]
    DEVICE (1) according to claim 1, characterized in that the internal heat exchanger comprises a heat sink (38) and the external heat exchanger comprises cooling fins (40).
    [0003]
    3. DEVICE (301), according to claim 1, characterized in that the heat path comprises a cooling fluid circuit (339) at least partially inside the waterproof case (302).
    [0004]
    DEVICE (101) according to claim 1, characterized in that the heat path comprises at least one heat pipe (139).
    [0005]
    5. DEVICE (201) according to claim 1, characterized in that the heat path comprises a Peltier element (241).
    [0006]
    6. DEVICE (1), according to claim 1, characterized in that it comprises an additional portion of the cabinet (36) with passages (20) through which water from an environment can flow without entering the waterproof cabinet ( 2), and the external heat exchanger (40) is located at least partially in the additional portion of the cabinet.
    [0007]
    7. DEVICE, according to claim 1, characterized by the waterproof cabinet (528, 530) forming part of a shower head (501) connectable to a water source, and in which the external heat exchanger ( 540) is located inside the shower head so that the water supplied can flow over the external heat exchanger.
    [0008]
    8. DEVICE (601), according to claim 1, characterized in that it comprises part of a scrubbing sponge (666), the external heat exchanger being located inside the sponge so that it comes in contact with water , but does not come into contact with the user's hand during normal use.
    [0009]
    9. DEVICE (1), according to claim 1, characterized by the waterproof compartment (2) comprising a faceplate (8) to touch a user's skin during use, the faceplate having a window (10) allowing skin to radiate through the window.
    [0010]
    10. DEVICE (1), according to claim 9, characterized in that it additionally comprises security detectors (14) arranged around a circumference of the window (10), the security detectors being waterproof.
    [0011]
    11. DEVICE (1), according to claim 10, characterized in that the security detectors (14) comprise mechanical microswitches (42) having actuating rods (44) that project through the openings (46) in the front plate (8), and said openings are covered by flexible waterproof membranes (48).
    [0012]
    12. DEVICE (501), according to claim 10, characterized in that the safety detectors (514) comprise capacitive sensors (542), each sensor associated with a blind hole (546) in the front plate (508) and arranged to measure a change in capacitance due to the fitting of the skin inside the blind hole under pressure application, with a waterproof sealing element (548) being present between each capacitive sensor and the associated blind hole.
    [0013]
    13. DEVICE (1) according to any one of the preceding claims, characterized in that the source of electromagnetic radiation comprises a flash lamp (12) and the device is a device (1) of intense pulsed light (IPL).
    [0014]
    14. DEVICE (201), according to claim 1, characterized in that the waterproof enclosure (202) comprises at least one flexible waterproof inner liner (252) shutting off at least the source (212), the power supply and the controller.
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    法律状态:
    2018-11-21| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2020-07-21| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-12-01| B09A| Decision: intention to grant|
    2021-02-09| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 22/10/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201261716661P| true| 2012-10-22|2012-10-22|
    US61/716,661|2012-10-22|
    PCT/IB2013/059537|WO2014064608A2|2012-10-22|2013-10-22|Electromagnetic skin treatment device|
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