WO2020248988A1 - 光照入肤器材用的防烫伤机壳及具该防烫伤机壳的器材 - Google Patents

光照入肤器材用的防烫伤机壳及具该防烫伤机壳的器材 Download PDF

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Publication number
WO2020248988A1
WO2020248988A1 PCT/CN2020/095254 CN2020095254W WO2020248988A1 WO 2020248988 A1 WO2020248988 A1 WO 2020248988A1 CN 2020095254 W CN2020095254 W CN 2020095254W WO 2020248988 A1 WO2020248988 A1 WO 2020248988A1
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light
skin
heat
hollow body
emitting unit
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PCT/CN2020/095254
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English (en)
French (fr)
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杨之逸
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承奕科技股份有限公司
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Publication of WO2020248988A1 publication Critical patent/WO2020248988A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N2005/0664—Details

Definitions

  • the present invention relates to an anti-scald casing, in particular to an anti-scald casing used for equipment for irradiating light into the skin and a device with the anti-scalding casing.
  • the above-mentioned equipment usually directly touches or closes to the skin of the user or patient; even to avoid leaving a gap between the equipment and the exposed person’s skin, causing the irradiation beam to be additionally reflected, scattered or absorbed, and additionally between the skin and the equipment Coated with light-transmitting gel with matching refractive index, resulting in good optical contact. This also causes the heat generated by the light-emitting component and the heat generated at the interface position on the surface of the casing to cause accidental damage to the skin under the combined effect.
  • protein will begin to degenerate at about 42 degrees.
  • Human skin is composed of protein. If the skin is exposed to a temperature of 60°C for five minutes and a temperature of 70°C for one minute, it will immediately damage the protein and cause burns. Even if it is only 42°C, as long as the same part is continuously contacted for up to 6 hours, it may cause burns. Such burns are called low-temperature burns.
  • the contact time between the skin and the high temperature source is relatively short, which usually only causes the superficial dermal scald.
  • the pain is less obvious due to the low heat source temperature.
  • it may develop into a scald in the deep dermis and various subcutaneous tissue layers.
  • low-temperature scalds are characterized by deep wounds and severe skin ulcers. Time cannot heal.
  • an anti-scald case for light-injection equipment which aims to achieve the following objectives: (1) The phase change of the insulating refrigerant ensures the equipment The temperature on the side of the optical contact with the skin can avoid skin burns; (2) The gas containing cavity on the casing prevents the vaporized refrigerant from blocking the direct contact heat conduction between the circuit board and the liquid refrigerant, ensuring the efficiency of heat conduction.
  • the present invention also hopes to provide a light skin-beaming device with a scald-proof casing, which aims to achieve the following objectives: (1) Through the phase change of the insulating refrigerant, ensure the temperature of the side of the device's optical contact with the skin and avoid burns User skin; (2) Let vaporized insulating refrigerant enter the gas containing cavity as much as possible to avoid blocking the circuit board and the light-transmitting part from smoothly conducting heat and contacting the liquid insulating refrigerant, and prolonging the safe use of the equipment.
  • the present invention provides an anti-scald case for a skin-beaming device for accommodating a circuit board provided with at least one light-emitting unit and an insulating refrigerant.
  • the light-emitting unit has a main light-emitting direction, The light beam from the light-emitting unit is provided to irradiate the skin of an irradiated person.
  • the insulated refrigerant is used to soak the circuit board and absorb the heat generated by the light-emitting unit.
  • the insulated refrigerant has a safe boiling point.
  • the scald-proof casing includes : A hollow body; and a light-transmitting part, which together with the hollow body surrounds a closed accommodating space for accommodating the circuit board and the insulating refrigerant, and for the light-emitting unit to emit the light beam in accordance with the main light-emitting direction Penetrates the light-transmitting part to enter the skin of the above-mentioned irradiated person; wherein, the hollow body further includes a heat-conducting part away from the light-transmitting part, and the heat-conducting part has a higher thermal conductivity than the light-transmitting part, thereby reducing the The heat energy of the insulating refrigerant is led to the outside of the hollow body, and at least one of the hollow body and the light-transmitting portion is for contacting the skin of the irradiated person; and the hollow body is further formed with at least one refrigerant for the insulation
  • the present invention provides a light skin penetration device with an anti-scald casing, which includes:
  • a circuit board accommodated in the accommodating space the circuit board is provided with at least one light-emitting unit, the light-emitting unit has a main light-emitting direction, so that the light beam from the light-emitting unit follows the main light-emitting direction and travels through the light-transmitting part to illuminate Into the skin of an exposed person;
  • the insulated refrigerant contained in the accommodating space is used to soak the circuit board and absorb the heat energy generated by the light-emitting unit, and the insulated refrigerant has a safe boiling point;
  • the hollow body further includes a heat-conducting part far away from the light-transmitting part, the heat-conducting part has a higher thermal conductivity than the light-transmitting part, thereby leading the heat energy of the insulating refrigerant to the outside of the hollow body;
  • the hollow body is further formed with at least one gas accommodating cavity for accommodating the gas that the insulating refrigerant is heated and transformed into.
  • the gas accommodating cavity and the accommodating space are at least at an angle with the main light emitting direction.
  • a plurality of conduction regions are formed in the radial direction.
  • the anti-scald case for the light skin infusion device and the light skin infusion device with the anti-scald case disclosed in accordance with the present invention directly soak and contact the circuit board, the light-emitting unit and the light transmission through an insulating refrigerant
  • the insulating refrigerant phase changes to ensure that the light-emitting unit and the light-transmitting part are completely kept below the vaporization temperature of the refrigerant.
  • the refrigerant can also be contained in the gas containing cavity after the phase changes, which will not easily block the continuous heat exchange between the liquid refrigerant and the circuit board and the light-transmitting part. This extends the operational time of the equipment. It is also possible to further drive the flow of the refrigerant by a device such as a pump to drive the vaporized refrigerant near the light-emitting unit away from the vicinity of the light-emitting unit, thereby preventing vaporized refrigerant bubbles from affecting the light emitted by the light-emitting unit. After the heat energy is exported, the gaseous refrigerant condenses back to the liquid state for continuous operation.
  • Fig. 1 is a schematic diagram of a first preferred embodiment of a light skin infusion device with an anti-scald casing in the present invention.
  • Fig. 2 is a schematic diagram of the use state of the embodiment of Fig. 1.
  • Fig. 3 is a schematic diagram of a second preferred embodiment of the light skin infusion device with an anti-scald casing in the present invention.
  • Figure 4 is a top view of the embodiment of Figure 3;
  • FIG. 5 is a schematic diagram of a third preferred embodiment of the light skin-beaming device with an anti-scald casing in the present invention.
  • the first preferred embodiment of the present invention provides a light skin infusion device with an anti-scald casing.
  • the light skin infusion device 1 is exemplified as a household phototherapy device, using, for example, red with a wavelength of 630 nanometers. Light induces fibroblasts in the dermis, leading to changes in collagen fibers in the dermis, thereby activating the user's skin.
  • the phototherapy device is closely attached to the skin 9 of the subject.
  • the skin 9 is labeled epidermis 90, dermis 92, and subcutaneous tissue 94 according to the structure, and the muscle 8 is below the skin 9.
  • the outside of the phototherapy device in this embodiment is an anti-scald casing 2, which mainly includes a hollow body 22 and a light-transmitting portion 24, and a accommodating space 20 is surrounded by the hollow body 22 and the light-transmitting portion 24. .
  • the accommodating space 20 is provided with a circuit board 12 and an insulating refrigerant 14, and a light-emitting unit 10 is provided on the circuit board 12.
  • the light beam emitted by the light-emitting unit 10 in this embodiment is mainly infrared light
  • the The material of the light-transmitting part 24 is a ceramic material that allows infrared light to pass through instead of ordinary glass.
  • the light-emitting unit in this embodiment takes a single red light diode as an example.
  • a lens group 19 is additionally provided to change the divergence of the light beam and achieve focus or expansion according to the needs of use. The effect of beam or parallel light.
  • the light-emitting unit 10 and the circuit board 12 are immersed in the insulating refrigerant 14. Since the conductivity of the refrigerant 14 is quite low, the light-emitting unit 10 and the circuit board 12 will not be short-circuited by the refrigerant 14, and the refrigerant 14 can be absorbed by direct contact
  • the insulating refrigerant 14 When the insulating refrigerant 14 absorbs heat energy and reaches a safe boiling point, it will convert the received heat energy into latent heat, so that the liquid refrigerant phase becomes a gaseous state, and faces upward under buoyancy. mobile. With the conduction and convection of the refrigerant 14, it is ensured that the position in contact with the illuminated person will not reach the burn temperature.
  • the accommodating space of the present invention is not pumped into a low pressure or vacuum state like a common heat pipe, but adopts For example, the normal pressure state of one atmosphere, and the phototherapy device does not have a specific fixed upper and lower positions, but is constantly changing the angle and orientation.
  • an additional gas containing cavity 220 is formed on the hollow body 22 of the anti-scalding housing of the present invention.
  • the hollow body 22 mainly extends along the main light emitting direction 100 of the light emitting unit and is slightly cylindrical.
  • the hollow body 22 forms the part of the gas accommodating cavity 220, which is in the shape of a doughnut that expands further outward in the radial direction relative to the main light emitting direction 100.
  • the hollow body 22 is located at the upper part of the figure. This is illustrated as the heat conducting portion 222 of the heat dissipation fin.
  • the circuit board is also provided with a timing unit , After an appropriate time, such as 15 minutes of irradiation, actively cut off the power supply. In addition to avoiding overheating of the phototherapy device, the user's use time is also restricted to prevent excessive light from damaging cells that were originally intended to be activated.
  • the heat-conducting part 222 has a fin-like structure to increase the contact area between the heat-conducting part 222 and the outside air to achieve the effect of heat dissipation.
  • the heat-conducting part 222 is made of a metal with a higher thermal conductivity, and is relatively hollow.
  • the cylindrical part of the main body 22 as the grip part is made of plastic with low thermal conductivity, so that when the person operates the light skin penetration device 1, it will not be unable to hold because of overheating; the light-transmitting part 24 in contact with the skin is
  • a ceramic material is taken as an example.
  • the thermal conductivity is slightly higher than that of the holding part, it is still far lower than the heat conducting part 222 made of metal. Therefore, the heat generated inside the scald-proof casing 2 is mainly dissipated through the heat conducting part 222.
  • the light-emitting skin device with a scald-proof casing of the present invention is not limited to contacting the user's skin with the light-transmitting part.
  • the light skin penetration device 3 provided by the second preferred embodiment of the present invention is an example of a detection/phototherapy device for neonatal jaundice (jaundice).
  • Neonatal jaundice is mainly caused by excessive bilirubin (bilirubin), which causes the skin and sclera to turn yellow or green.
  • the main absorption spectrum of bilirubin is 440nm, according to the oxygen and hypoxia state of bilirubin , The absorption spectrum will have a shift of tens of nanometers, so some patients with light-emitting components can use, for example, near-ultraviolet light or blue-violet light with a wavelength between 460 and 490 nm for phototherapy.
  • near-ultraviolet light or blue-violet light with a wavelength between 460 and 490 nm for phototherapy.
  • the light skin penetration device 3 in this embodiment also includes an anti-scald casing 4, and a circuit board 32 and an insulating refrigerant 34 arranged in the anti-scald casing 4.
  • the circuit board 32 is provided with, for example, the main emission wavelengths respectively A plurality of LEDs of 440 nm, 460 nm, and 490 nm are used as the light emitting unit 30.
  • the scald-proof casing 4 also includes a hollow body 42 and a light-transmitting portion 44, and the hollow body 42 and the light-transmitting portion 44 jointly surround and combine a closed accommodating space 40.
  • at least one pump 38 is also provided in the accommodating space 40.
  • the pump 38 achieves the circulating flow of the refrigerant 34 through the rotation of the internal impeller. effect.
  • the light-emitting unit 30 follows the same main light-emitting direction 300 and irradiates toward the light-transmitting portion 44.
  • the light-transmitting portion 44 further forms a protruding arc surface 442 in the direction toward the accommodating space 40.
  • the hollow body 42 in this embodiment is made of, for example, a metal material by three-dimensional printing. Therefore, as shown in FIG.
  • the cavities 420 if the main light emission direction 300 is taken as the axial direction, each gas containing cavity 420 is located radially at an angle of about ninety degrees to the axial direction. Therefore, regardless of the jaundice detection/phototherapy device When tilted, there will be a suitable gas containing cavity 420 which can contain the vaporized refrigerant 34. Furthermore, because the hollow body 42 is thinner in the part of the housing where the gas containing cavity 420 is formed, the thermal conductivity of this part is better, and it becomes the heat conducting part 422 in this embodiment, and in this embodiment, it is more hollow.
  • the body 42 corresponds to the position of the heat conducting portion 422, and is provided with a detachable cold source 48, which is illustrated as an ice castle that can be stored in an ice store in this embodiment.
  • the part that touches the skin may be the hollow body 42 protruding from the front edge of the light-transmitting portion 44 instead of the light-transmitting portion 44, and considering that the infant cannot express the feeling of temperature,
  • the ice castle in this embodiment is further provided with a temperature-sensitive and discolored area (not labeled) at the position where the holding portion 46 is formed, so that after the detachable cold source 48 is installed on the heat-conducting portion 422, the heat-conducting portion The portion 422 absorbs internal thermal energy, so that the thermal energy emitted by the light-emitting unit 30 can be conducted to the outside more quickly.
  • the ice castle gradually heats up and loses its cooling effect, the operator can easily observe the color change and terminate the operation.
  • the third preferred embodiment of the present invention provides a light skin penetration device with an anti-scald casing. It has the same technical features as the previous embodiments, and the light penetration device 5 is a photoacoustic imaging device.
  • the circuit board 52 includes a receiving unit 522 in addition to the light-emitting unit 50. When the main pulsed laser beam emitted by the light-emitting unit 50 enters the skin and reaches the imaging site, the cells corresponding to the predetermined target area absorb this The light beam is converted into heat energy, which causes the nearby tissues to thermoelastically expand, thereby forming a broadband ultrasonic emission.
  • Such a sound wave of a predetermined frequency can be received by the receiving unit 522 to form photoacoustic imaging or photoacoustic imaging.
  • a gel 70 with matching optical refractive index and sound propagation rate is additionally coated between the light-transmitting portion 64 and the skin.
  • the receiving unit 522 may not only be a component that can receive sound waves in a specific range of frequencies, but also a component that can receive light signals or have a temperature sensing function, so that the light-into-skin device 5 can adjust the light-emitting unit 50 according to light signals or temperature changes. Luminous power, or follow-up analysis or processing based on values such as light signal or temperature.
  • the hollow body 62 in this embodiment has an inner and outer double-layer inner shell 624 and an outer shell 622.
  • the inner shell 624 is further formed with a plurality of tiny air holes, so that the inner shell 624 and Between the outer shell 622, a large gas containing cavity 620 is formed. Regardless of the orientation of the device during operation, once the refrigerant vaporizes from the liquid state, it can be controlled by gravity and buoyancy. The tiny pores enter the gas containing cavity 620 between the inner shell 624 and the outer shell 622, waiting to be condensed to return to a liquid state.
  • the present invention provides an anti-scald casing for light skin infusion equipment and a device with the anti-scald casing, which can effectively prevent the light-emitting unit from scalding the skin and make the temperature at which the light skin infusion equipment touches the skin. Determine the temperature lower than the dangerous temperature of low-temperature burns, so that the exposed person can use the equipment more safely, and it can also extend the time for the exposed person to use the equipment once.

Abstract

本发明公开了一种光照入肤器材用的防烫伤机壳，此外本发明还公开一种具有防烫伤机壳的光照入肤器材，该器材包括：一中空本体；一供光学接触受照者皮肤的透光部，与上述中空本体共同环绕出一封闭的容置空间；一容纳于上述容置空间的电路板，前述电路板设置有至少一发光单元，前述发光单元具有一个主发光方向，使得来自上述发光单元的光束是依循上述主发光方向行经上述透光部而照射进入一个受照者的皮肤；容纳于上述容置空间的绝缘的冷媒，供浸泡上述电路板而吸收上述发光单元产生的热能，该绝缘的冷媒具有一个安全沸点。

Description

光照入肤器材用的防烫伤机壳及具该防烫伤机壳的器材 技术领域
本发明涉及一种防烫伤机壳，尤其是一种光照入肤器材用的防烫伤机壳及具该防烫伤机壳的器材。
背景技术
目前，市面上有许多种类的光学医疗及光学相关检测器材，透过不同的发光源，进行医美、光声成像、光动力治疗或医学检验等，但由于能量转换效率不可能达到百分之百，电能转换为光能的同时，多半伴随有热能的产生，另方面，光束在行经任何接口时，也都会有部分的反射和吸收，在接口位置造成另一种热源。因为上述这些器材通常直接接触或紧贴使用者或患者的皮肤；甚至还为避免器材和受照者皮肤间留下空隙，造成照射光束被额外反射、散射或吸收，额外在皮肤和器材之间涂上折射率匹配的透光凝胶，造成良好的光学接触。这也使得发光组件所发出的热能和机壳表面接口位置的发热，在总合累积的效应下，造成皮肤的意外伤害。
一般来说，蛋白质约42度左右会开始变性，人体皮肤由蛋白质组成，若皮肤接触60℃的温度持续五分钟、70℃的温度持续一分钟，就会立即损伤蛋白质而造成烫伤。即使只有42℃，但只要同一部位连续接触长达6小时，也有可能造成烫伤，这种烫伤就叫做低温烫伤。
一般而言，如果是一般性烫伤，皮肤与高温源之间接触时间较短，通常仅造成真皮浅层烫伤。但是如果是低温烫伤，由于热源温度较低，疼痛感较不明显，在低热源长时间持续作用下，就可能会发展成为真皮深层及皮下各组织层的烫伤。不仅如此，由于低温烫伤的疼痛感较不明显，而且外表看上去仅会出现脱皮、红肿等现象，似乎并不严重，然而低温烫伤的特点是创伤深度深，严重的还会造成皮肤溃烂，长时间无法愈合。
因此，如何提供一种光照入肤器材用的防烫伤机壳，能将发光单元所发出的热能带离，避免人体皮肤在使用器材时发生烫伤，确保使用安全性，就是本发明所要达到的目的。
发明内容
针对现有技术的上述不足，根据本发明的实施例，希望提供一种光照入肤器材用的防烫伤机壳，旨在实现如下目的：(1)藉由绝缘的冷媒的相变化，确保器材光学接触皮肤一侧的温度，避免皮肤烫伤；(2)藉由机壳上的气体容置腔，避免汽化的冷媒阻断电路板和液态冷媒的直接接触热传导，确保导热效率。此外，本发明还希望提供一种具有防烫伤机壳的光照入肤器材，旨在实现如下目的：(1)藉由绝缘的冷媒的相变化，确保器材光学接触皮肤一侧的温度，避免烫伤用户皮肤；(2)让汽化的绝缘的冷媒尽量进入气体容置腔，避免阻断电路板和透光部顺利导热接触液态绝缘的冷媒，延长器材可安全使用的时间。
根据实施例，本发明提供的一种光照入肤器材用的防烫伤机壳，供容置一设置有至少一发光单元的电路板以及一种绝缘的冷媒，上述发光单元具有一个主发光方向，藉以提供来自上述发光单元的光束照射进入一个受照者的皮肤，上述绝缘的冷媒供浸泡上述电路板而吸收上述发光单元产生的热能，该绝缘的冷媒具有一个安全沸点，该防烫伤机壳包括：一中空本体；及一透光部，与上述中空本体共同环绕出一封闭的容置空间，供容纳上述电路板及上述绝缘的冷媒，并供上述发光单元依循上述主发光方向所发上述光束穿透该透光部而进入上述受照者的皮肤；其中，上述中空本体更包括一远离该透光部的导热部，该导热部具有高于上述透光部的导热系数，藉此将上述绝缘的冷媒的热能导出至上述中空本体外侧，且上述中空本体和上述透光部中的至少一者是供接触上述受照者的皮肤；及上述中空本体进一步形成有至少一个供上述绝缘的冷媒受热而相变成的气体容置的气体容置腔，前述气体容置腔和上述容置空间，至少在与上述主发光方向呈夹角的径向形成有复数导通区域。
根据实施例，本发明提供的一种具有防烫伤机壳的光照入肤器材，该器材包括：
一中空本体；
一供光学接触上述受照者皮肤的透光部，与上述中空本体共同环绕出一封闭的容置空间；
一容纳于上述容置空间的电路板，前述电路板设置有至少一发光单元，前述发光单元具有一个主发光方向，使得来自上述发光单元的光束是依循上述主发光方向行经上述透光部而照射进入一个受照者的皮肤；
容纳于上述容置空间的绝缘的冷媒，供浸泡上述电路板而吸收上述发光单元产生的热能，该绝缘的冷媒具有一个安全沸点；
其中，上述中空本体更包括一远离该透光部的导热部，该导热部具有高于上述透光部的导热系数，藉此将上述绝缘的冷媒的热能导出至上述中空本体外侧；及
上述中空本体进一步形成有至少一个供上述绝缘的冷媒受热而相变成的气体容置的气体容置腔，前述气体容置腔和上述容置空间，至少在与上述主发光方向呈夹角的径向形成有复数导通区域。
相对于现有技术，依照本发明揭露的光照入肤器材用的防烫伤机壳以及具有防烫伤机壳的光照入肤器材，透过绝缘的冷媒直接浸泡及接触电路板、发光单元和透光部，一方面藉由绝缘的冷媒相变化，确保发光单元和透光部完全被保持在冷媒的汽化温度以下，只要选择冷媒的汽化点在一个安全温度，就可以确保器材表面不会达到让受照者低温烫伤的危险温度；另方面，冷媒在相变化后，也可以被容纳于气体容置腔，不会轻易阻断液态冷媒和电路板以及和透光部之间的持续热交换，藉此延长器材的可操作时间。还可以更进一步藉由例如泵浦等装置，驱动冷媒流动，将发光单元附近汽化的冷媒驱离发光单元附近，藉此避免汽化后的冷媒气泡影响发光单元所发出的光线。在热能导出后，气态的冷媒则凝结回液态持续运作。
附图说明
图1为本发明中具有防烫伤机壳的光照入肤器材第一较佳实施例的示意图。
图2为图1实施例使用状态的示意图。
图3为本发明中具有防烫伤机壳的光照入肤器材第二较佳实施例的示意图。
图4为图3实施例的俯视图。
图5为本发明中具有防烫伤机壳的光照入肤器材第三较佳实施例的示意图。
其中：1、3、5为光照入肤器材；2、4为防烫伤机壳；8为肌肉；9为皮肤；10、30、50为发光单元；12、32、52为电路板；14、34为冷媒；19为透镜组；20、40为容置空间；22、42、62为中空本体；24、44、64为透光部；38为泵浦；46为握持部；48为可拆式冷源；70为胶质；90为表皮；92为真皮；94为皮下组织；100、300为主发光方向；220、420、620为气体容置腔；222、422为导热部；442为弧面；522为接收单元；622为外层壳体；624为内层壳体。
具体实施方式
下面结合附图和具体实施例，进一步阐述本发明。这些实施例应理解为仅用于说明本发明而不用于限制本发明的保护范围。在阅读了本发明记载的内容之后，本领域技术人员可以对本发明作各种改动或修改，这些等效变化和修改同样落入本发明权利要求所限定的范围。
第一较佳实施例
如图1所示，本发明第一较佳实施例提供的具有防烫伤机壳的光照入肤器材中，光照入肤器材1是例释为一种家用光疗装置，利用例如波长630纳米的红光诱发真皮层内的纤维母细胞，导致真皮内的胶原纤维变化，藉此让使用者的肌肤活化。此光疗装置正紧贴于受照者的的皮肤9，为便于说明，此处皮肤9分别依照结构标号为表皮90、真皮92及皮下组织94，皮肤9下方则为肌肉8。
本实施例中的光疗装置的外部是一个防烫伤机壳2，主要包括一个中空本体22和一个透光部24，并且由该中空本体22和该透光部24共同环绕出一个容置空间20。容置空间20中则设置有电路板12和绝缘的冷媒14，电路板12上设置有发光单元10，由于本实施例中的发光单元10所发光束主要为红外光，因此本实施例中的透光部24材料是选择可以让红外光穿透的陶瓷材料，而非一般玻璃。在本实施 例中的发光单元以单一的红光二极管为例，在发光二极管的主发光方向100，则额外设置有透镜组19，以改变光束的发散情况，依使用的需求而达成聚焦或扩束或平行光的效果。
发光单元10及电路板12浸泡于绝缘的冷媒14中，由于冷媒14的导电系数相当低，发光单元10及电路板12不会因为冷媒14而造成短路，且冷媒14能够藉由直接接触而吸收发光单元10、电路板12和其他电路组件所发出的热能，以及透光部24所吸收或转换的热能，为确保本发明的受照者安全性，在此选择冷媒为沸点低于例如摄氏42度的材质，且定义其为一安全沸点，当绝缘的冷媒14吸收热能而达到安全沸点时，会将其所接收的热能转为潜热，使液态的冷媒相变成气态，受浮力而朝向上方移动。藉由冷媒14的传导与对流，确保接触受照者的位置不会达到烫伤温度。
当本实施例中的受照者手持光疗装置在各部位分别照射一段固定时间的过程中，由于本发明的容置空间并不像一般常见的热管是抽成低压或真空的状态，而是采取例如一大气压的正常压力状态，而且光疗装置也没有特定固定的上下方位，而是被不断转换角度与方位，汽化的冷媒一旦遮蔽于发光单元之前，一方面会导致吸收热能的效率大幅降低，另方面则会造成主发光角度被气泡遮蔽，造成预期以外的光束行进方向偏折。因此，在本发明的防烫伤壳体的中空本体22上，形成有额外的气体容置腔220，在本实施例中，中空本体22主要是依循发光单元的主发光方向100延伸而略呈圆柱状，而中空本体22形成气体容置腔220的部分，则是沿着相对于主发光方向100的径向更向外侧扩张的甜甜圈形状，中空本体22位在图式的上方的部分，则是例释为散热鳍片的导热部222。
可以轻易理解，如图2所示，当使用者以横向方式手握中空本体22的圆柱部分进行光疗时，发光单元及电路板上的其他发热件会逐渐发热，直接接触到的冷媒14将会吸收此热能而逐步升温，到达安全沸点时，吸收的热能转为潜热，将冷媒逐步汽化，由于甜甜圈状的气体容置腔220是位于主发光方向100的径向延伸方向， 并且在径向的三百六十度都与容置空间20导通连接，当冷媒大量由液态转为气态时，将会因为重力与浮力的作用，至少部分进入气体容置腔220中，减少容置空间20内的气态冷媒。
由于气体容置腔220紧邻散热鳍片，当外部的空气接触散热鳍片而将气态冷媒所携带的热能带走后，冷媒将渐次恢复液态，再因重力而落回。即使发光单元的发热大于外部空气的散热，造成气态冷媒逐渐增加，且占用体积逐渐增大，容置空间内部压力随之增大，但在本实施例中，电路板上一并设置有计时单元，在例如照射15分钟的适当时间后，主动截断供电。除避免光疗装置过热外，也一并限制使用者的使用时间，以免光照过度，反而伤害原本仅是要活化的细胞。
本实施例中导热部222是透过鳍片状的结构，增加导热部222与外部空气的接触面积，达到散热的效果，且导热部222是以导热系数较高的金属制造，相对地，中空本体22作为握持部的圆柱状部分，则是以导热系数低的塑料制成，使人员在操作光照入肤器材1时，不会因为过热而无法握持；接触皮肤的透光部24在本实施例中是以陶瓷材料为例，虽然导热系数略高于握持部，但仍远低于金属材质的导热部222。也因此，防烫伤机壳2内部所产生的热能主要经由导热部222散出。
第二较佳实施例
当然，如熟悉本发明技术领域人士所能轻易理解，本发明的具有防烫伤机壳的光照入肤器材并不局限于要以透光部接触使用者皮肤。如图3及图4所示，本发明第二较佳实施例提供的光照入肤器材3是例释为一种新生儿黄疸(jaundice)的检测/光疗装置。新生儿黄疸主要是由于胆红素(bilirubin)过高，造成皮肤及巩膜发黄或发绿的病症，由于胆红素的主要吸收光谱为440nm，而依照胆红素的含氧和缺氧状态，此吸收光谱会有数十纳米的漂移，因此藉由发光组件的部分患者可以用例如近紫外光或波长为460至490nm间的蓝紫色光进行光照治疗。对于与前例相同部分于此例不再赘述，而仅就差异部分提出说明。
本实施例中的光照入肤器材3同样包括防烫伤机壳4，以及设置于防烫伤机壳 4中的电路板32和绝缘的冷媒34，电路板32上则设置有例如主要发光波长分别为440nm、460nm和490nm的复数个LED作为发光单元30。防烫伤机壳4同样包括中空本体42和透光部44，并且由中空本体42和透光部44共同围绕组合出封闭的容置空间40。为能鼓动容置空间40中液态的绝缘的冷媒34流动，在容置空间40中，还设置有至少一具泵浦38，泵浦38是透过内部叶轮的旋转，达成冷媒34循环流动的效果。发光单元30依循着相同的主发光方向300，朝向透光部44照射，且在本实施例中，透光部44在朝向容置空间40的方向，更形成有一个突出的弧面442，即使在透光部44朝上的方向操作，汽化的冷媒也不会轻易堆积在透光部44内侧的中央部分而阻挠主发光方向300的光束射出。
本实施例中的中空本体42，则是由例如金属材料经三维打印而成，因此如图4所示，在接近光照入肤器材3上方部分，额外形成有例如六个凹穴作为气体容置腔420，若以主发光方向300作为轴向，则每一个气体容置腔420分别位在与轴向夹约九十度角的径向呈放射状分布，因此，无论此黄疸检测/光疗装置如何侧倾，都会有适当的气体容置腔420，可以容纳被汽化的冷媒34。进一步，由于中空本体42在形成有气体容置腔420的部分壳体较薄，此部分的导热率较佳，也就成为本实施例中的导热部422，而在本实施例中更在中空本体42对应于导热部422的位置，设置有一个可拆式冷源48，在本实施例中是例释为一个可以储放于冰库中的冰堡。
由于本实施例中的照射对象可能为婴幼儿，接触其皮肤的部分可能是中空本体42突出于透光部44的前缘而非透光部44，并且考虑婴幼儿无法表达对温度的感受，本实施例中的冰堡在形成有握持部46的位置，进一步设置有感温变色的区域(未标号)，使得可拆式冷源48装设至导热部422后，藉由紧贴导热部422而吸收内部热能，让发光单元30所发出的热能可以更快速地被导至外部，而在冰堡逐渐升温而丧失降温效果时，操作人员可以轻易观察到颜色变化而终止运作。
第三较佳实施例
如图5所示，本发明第三较佳实施例提供的具有防烫伤机壳的光照入肤器材， 具有与前述实施例相同的技术特征外，光照入肤器材5则是以光声成像装置为例，因此在电路板52上，除发光单元50外，进一步包括接收单元522，当发光单元50所发的脉冲雷射主光束射入皮肤而抵达成像部位，预定目标区对应的细胞吸收此光束而转换为热能，使附近的组织发生热弹性膨胀，从而形成宽带的超声波发射，此种预定频率的声波即可被接收单元522接收而构成光声成像或光声造影。为避免不必要的气隙阻隔入射光或回传的声音信号，在透光部64和皮肤间还额外涂布有光学折射率及声音传播速率匹配的胶质70。接收单元522除了可以是上述能接收特定范围频率声波的组件，也可以是能接收光讯号或者具有感测温度功能的组件，让光照入肤器材5可以根据光讯号或温度变化调整发光单元50的发光功率，或者根据光讯号或温度等数值进行后续分析或处理。
在本实施例中的中空本体62则具有内、外双层的内层壳体624与外层壳体622，内层壳体624上进一步形成有复数的微小气孔，使得内层壳体624和外层壳体622之间，形成有一个较大的气体容置腔620，无论光照入肤器材操作时的摆设方位如何，一旦有冷媒由液态而汽化，均可因重力和浮力的作用，由微小气孔进入内层壳体624和外层壳体622之间的气体容置腔620，等候被冷凝回复液态。
综上所述，本发明所提供的一种光照入肤器材用的防烫伤机壳及具该防烫伤机壳的器材，能有效避免发光单元烫伤皮肤，使光照入肤器材接触皮肤处的温度确定低于低温烫伤的危险温度，让受照者能更安全地使用器材，同时也可以拉长受照者单次使用器材的时间。

Claims (10)

  1. 一种光照入肤器材用的防烫伤机壳，供容置一设置有至少一发光单元的电路板以及一种绝缘的冷媒，上述发光单元具有一个主发光方向，藉以提供来自上述发光单元的光束照射进入一个受照者的皮肤，上述冷媒供浸泡上述电路板而吸收上述发光单元产生的热能，该绝缘的冷媒具有一个安全沸点，其特征是，该防烫伤机壳包括一中空本体及一透光部，透光部与中空本体共同环绕出一封闭的容置空间，供容纳上述电路板及上述绝缘的冷媒，并供上述发光单元依循上述主发光方向所发上述光束穿透该透光部而进入上述受照者的皮肤，其中：
    上述中空本体更包括一远离该透光部的导热部，该导热部具有高于上述透光部的导热系数，藉此将上述绝缘的冷媒的热能导出至上述中空本体外侧，且上述中空本体和上述透光部中的至少一者是供接触上述受照者的皮肤；及
    上述中空本体进一步形成有至少一个供上述绝缘的冷媒受热而相变成的气体容置的气体容置腔，前述气体容置腔和上述容置空间，至少在与上述主发光方向呈夹角的径向形成有复数导通区域。
  2. 如权利要求1所述的光照入肤器材用的防烫伤机壳，其特征是，进一步包括一远离上述导热部的握持部，具有低于该导热部的热导率。
  3. 如权利要求1所述的光照入肤器材用的防烫伤机壳，其特征是，该透光部形成有一突向上述容置空间的弧面。
  4. 如权利要求1所述的光照入肤器材用的防烫伤机壳，其特征是，进一步包括一个导热接触上述导热部的可拆式冷源，以吸收该导热部导出的热能。
  5. 如权利要求1所述的光照入肤器材用的防烫伤机壳，其特征是，上述中空本体具有一内层壳体及一外层壳体，该内层壳体与该外层壳体之间为前述气体容置腔，该内层壳体形成有复数个的微小气孔，供上述绝缘的冷媒受热而相变成的气体通过。
  6. 一种具有防烫伤机壳的光照入肤器材，其特征是，该器材包括：
    一中空本体；
    一供光学接触上述受照者皮肤的透光部，与上述中空本体共同环绕出一封闭的容置空间；
    一容纳于上述容置空间的电路板，前述电路板设置有至少一发光单元，前述发光单元具有一个主发光方向，使得来自上述发光单元的光束是依循上述主发光方向行经上述透光部而照射进入一个受照者的皮肤；
    容纳于上述容置空间的绝缘的冷媒，供浸泡上述电路板而吸收上述发光单元产生的热能，该绝缘的冷媒具有一个安全沸点；
    其中，上述中空本体更包括一远离该透光部的导热部，该导热部具有高于上述透光部的导热系数，藉此将上述绝缘的冷媒的热能导出至上述中空本体外侧；及
    上述中空本体进一步形成有至少一个供上述绝缘的冷媒受热而相变成的气体容置的气体容置腔，前述气体容置腔和上述容置空间，至少在与上述主发光方向呈夹角的径向形成有复数导通区域。
  7. 如权利要求6所述的具有防烫伤机壳的光照入肤器材，其特征是，该电路板上更设置有一接收单元，供接收光和/或声音信号。
  8. 如权利要求6所述的具有防烫伤机壳的光照入肤器材，其特征是，进一步包括一个导热接触上述导热部的可拆式冷源，以吸收该导热部导出的热能。
  9. 如权利要求6所述的具有防烫伤机壳的光照入肤器材，其特征是，进一步包括至少一设置于上述中空本体和/或上述电路板的泵浦，使上述绝缘的冷媒于该容置空间内循环流动。
  10. 如权利要求6所述的具有防烫伤机壳的光照入肤器材，其特征是，进一步包括一容纳于上述容置空间，且由上述发光方向位于上述发光单元下游的透镜组，藉此改变上述光束的光学路径。
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