WO2020034377A1 - 一种短波治疗仪感式电极头功率输出指示机构 - Google Patents
一种短波治疗仪感式电极头功率输出指示机构 Download PDFInfo
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- WO2020034377A1 WO2020034377A1 PCT/CN2018/109987 CN2018109987W WO2020034377A1 WO 2020034377 A1 WO2020034377 A1 WO 2020034377A1 CN 2018109987 W CN2018109987 W CN 2018109987W WO 2020034377 A1 WO2020034377 A1 WO 2020034377A1
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- short
- inductive electrode
- power output
- transformer
- circuit
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- 230000001939 inductive effect Effects 0.000 title claims abstract description 34
- 238000002560 therapeutic procedure Methods 0.000 title claims abstract description 12
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 239000003990 capacitor Substances 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 14
- 230000001225 therapeutic effect Effects 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- RFIJBZKUGCJPOE-UHFFFAOYSA-N [Fe].[Ni].[Zn] Chemical group [Fe].[Ni].[Zn] RFIJBZKUGCJPOE-UHFFFAOYSA-N 0.000 claims 1
- 229910000859 α-Fe Inorganic materials 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 3
- 229910001053 Nickel-zinc ferrite Inorganic materials 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 208000007101 Muscle Cramp Diseases 0.000 description 1
- 208000005392 Spasm Diseases 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000000748 cardiovascular system Anatomy 0.000 description 1
- 210000002808 connective tissue Anatomy 0.000 description 1
- 210000002249 digestive system Anatomy 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 238000000554 physical therapy Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
Definitions
- the present utility model relates to the technical field of medical equipment, and in particular, to a power output indicating mechanism for an inductive electrode head of a short-wave therapeutic instrument.
- the short-wave therapeutic instrument is a type of physical rehabilitation therapy, and is mainly used in rehabilitation physiotherapy, surgery, internal medicine, etc. of a hospital.
- This device outputs a certain amount of RF power, which has a good effect on the nervous system, cardiovascular system, digestive system, kidney, connective tissue treatment, and also has pain relief, muscle spasm relief, enhanced joint ductility, and blood circulation promotion.
- Significant effect is a good effect on the nervous system, cardiovascular system, digestive system, kidney, connective tissue treatment, and also has pain relief, muscle spasm relief, enhanced joint ductility, and blood circulation promotion.
- the present utility model discloses a power output indicating mechanism of an inductive electrode head of a short-wave therapeutic instrument, which can indicate a current power output state.
- An inductive electrode head power output indicating mechanism of a short-wave therapeutic instrument includes an LC resonance circuit and a transformer
- a rectifier filter circuit and an indicator lamp the LC resonance circuit is connected to the rectifier filter circuit through a transformer, and the rectifier filter circuit is connected to the indicator lamp; the LC resonance circuit is located inside the inductive electrode head of the short-wave therapy instrument.
- the acquired voltage is a radio frequency signal, that is, a radio frequency diode is added to the back end to rectify the voltage, and in order to prevent the acquired voltage from being too large, which causes the current flowing through the light-emitting LED to be too large and burned out, a voltage regulator is designed to limit the voltage. Adding a current-limiting resistor ensures that the light-emitting diode will not burn out and emits light of different intensity according to different short-wave power outputs.
- the rectifying and filtering circuit includes a resistor R1, a resistor R2, a diode D1, a diode D2, an output terminal of the transformer T1 is connected to a resistor R1, and the resistor R1 and a positive electrode of the diode D1
- the anode of the diode D1 is connected to the resistor R2 and the anode of the diode D2, the resistor R2 is connected to one end of the indicator D3, and the other end of the indicator D3 is connected to the anode of the diode D2 and the transformer T1.
- the brightness of the indicator D3 changes with the output power of the short-wave therapy instrument, and when the power is large enough, it can be kept at a constant brightness, so as not to burn the indicator D3.
- the voltage of the secondary coupling of the transformer T1 does not exceed the regulated voltage of the diode D2
- the light-emitting diode D3 can light up as the coupling power is large, indicating that the LED can reflect the output power;
- the indicator D3 is constant at a fixed brightness. In this way, the energy obtained by the LC resonance circuit can reflect the power, and the brightness of the indicator light can be used to facilitate the user to better monitor and judge the output state of the device.
- the LC resonance circuit includes a resonance coupling inductor and a capacitor C1, the resonance coupling inductor is wound by using a nickel-zinc ferrite core, and two ends of the capacitor C1 are connected with The input of transformer T1 is connected.
- the capacitor C1 is a radio frequency capacitor.
- the capacitor C 1 is made of NP0; the material of the resonant coupling inductor is nickel-zinc ferrite with low magnetic permeability.
- the LC resonance circuit wirelessly receives a large RF signal with a frequency of 27.12MHz and a maximum power of several hundred watts from the inductive electrode, it is different from the conventional wireless charging coupling method of about 10OKHz and several MHz in order to ensure continuous stability Work, the components of the LC circuit have special RF requirements, and the capacitor uses a radio frequency capacitor with small temperature drift and small ESR (equivalent series resistance); in order to minimize the occupied area, the resonant coupling inductor is not a large-area ring enameled wire in conventional wireless charging Or ring-shaped PCB routing, but using nickel-zinc ferrite cores with good high-frequency performance and low magnetic permeability. This way the entire output indicates the system The area is small and can be controlled within 5cm * 3cm.
- the primary stage ratio of the transformer is 1: 1
- the indicator lamp is a light emitting diode.
- the power output indicating mechanism of the inductive electrode head of the short-wave therapeutic instrument includes a first circuit board and a second circuit board, the LC resonance circuit is located on the first circuit board, and the transformer The rectifying and filtering circuit and the indicator light are located on a second circuit board, the first circuit board is electrically connected to the second circuit board, and the first circuit board is located inside the inductive electrode head.
- the utility model discloses a short-wave therapeutic apparatus, which includes the inductive electrode head power output indicating mechanism of the short-wave therapeutic apparatus described above.
- FIG. 1 is a circuit diagram of an inductor electrode power output indicator according to the present invention.
- FIG. 2 is a schematic structural diagram of an indicator PCB board of the present invention.
- an inductive electrode head power output indicating mechanism of a short-wave therapy device includes an LC resonance circuit, a transformer, a rectifier filter circuit, and an indicator light, and the LC resonance circuit is connected to the rectifier filter circuit through a transformer
- the rectifying and filtering circuit is connected with the indicator light; the LC resonance circuit is located in the short-wave therapeutic instrument Inside the inductive electrode tip.
- the indicator is a light emitting diode.
- the rectifying and filtering circuit includes a resistor R1, a resistor R2, a diode D1, a diode D2, an output terminal of the transformer T1 is connected to a resistor R1, and the resistor R1 and a diode D1 are connected
- the anode of the diode D1 is connected to the resistor R2 and the cathode of the diode D2, the resistor R2 is connected to one end of the indicator D3, and the other end of the indicator D3 is connected to the anode of the diode D2 and the transformer T1.
- the LC resonance circuit includes a resonance coupling inductor and a capacitor Cl.
- the resonance coupling inductor is wound by using a nickel-zinc-ferrite core. Both ends of the capacitor C1 are connected to an input terminal of a transformer T1.
- the capacitor C1 is a radio frequency capacitor. Because the radio-frequency high-power wireless takes power, the current of the driving indicator light is related to the number of turns and turns of the coupled transformer, and the first-stage ratio of the transformer T1 in this embodiment is 1: 1. Further, the capacitor C 1 is made of NP0; the material of the resonant coupling inductor is nickel-zinc ferrite with low magnetic permeability.
- the short-wave therapy instrument inductive electrode head power output indicating mechanism includes a first circuit board A and a second circuit board B, and the LC resonance circuit is located on the first circuit board.
- the transformer, the rectifying and filtering circuit, and the indicator light are located on a second circuit board, the first circuit board is electrically connected to the second circuit board, and the first circuit board is located inside an inductive electrode head.
- the LC power part is independent of the A board, and the rectifier and other parts are the B board. After installation, they are connected by wires. When assembling, the A plate is installed inside the inductive electrode, so as to obtain sufficient energy.
- the obtained voltage is a radio frequency signal, that is, a radio frequency diode is added to the back end to rectify it.
- a voltage regulator is designed to limit the voltage and increase the limit The current resistance ensures that the light emitting diode will not burn out, and emits light of different intensity according to different short-wave power output.
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Electrotherapy Devices (AREA)
Abstract
本实用新型提供了一种短波治疗仪感式电极头功率输出指示机构，其包括LC谐振电路、变压器、整流滤波电路和指示灯，所述LC谐振电路通过变压器与整流滤波电路连接，所述整流滤波电路与指示灯连接；所述LC谐振电路位于短波治疗仪感式电极头的内侧。采用本实用新型的技术方案，不同于常规的取电方式，而是直接从感式电极输出头进行无线取电，并在电极输出头上直接驱动发光二极管，指示当前功率输出状态，从而改善目前感式电极功率输出指示不直观的问题，实现了实时指示功率；而且无需额外操作或额外设备，提高了使用便利度。
Description
一种短波治疗仪感式电极头功率输出指示机构 技术领域
[0001] 本实用新型涉及医疗器械技术领域， 尤其涉及一种短波治疗仪感式电极头功率 输出指示机构。
背景技术
[0002] 短波治疗仪是物理康复疗法的一种， 主要应用于医院的康复理疗科、 外科、 内 科等。 该设备输出一定剂量的射频功率， 对神经系统、 心血管系统、 消化系统 、 肾脏、 结缔组织治疗有较好作用， 同时在疼痛缓解、 肌肉痉挛缓解， 人体关 节延展性增强、 血液循环促进方面有显著效果。
[0003] 目前市场上的感式电极头大多没有输出功率指示， 在判断电极是否正常输出时 ， 只能通过设备上的显示参数去评估， 不够直接明了， 即操作机器让感式电极 头输出射频功率时， 无法直观判断设备是否真实在输出功率。 在实际使用时， 不利于医师直接监测和判断设备的输出状态， 特别是近距离监测患者治疗状态 发明概述
技术问题
问题的解决方案
技术解决方案
[0004] 针对上述技术问题， 本实用新型公开了一种短波治疗仪感式电极头功率输出指 示机构， 其能指示当前功率输出状态。
[0005] 对此， 本实用新型的技术方案为：
[0006] 一种短波治疗仪感式电极头功率输出指示机构， 其包括 LC谐振电路、 变压器
、 整流滤波电路和指示灯， 所述 LC谐振电路通过变压器与整流滤波电路连接， 所述整流滤波电路与指示灯连接； 所述 LC谐振电路位于短波治疗仪感式电极头 的内侧。
[0007] 采用此技术方案， 不同于常规的取电方式， 而是直接从感式电极输出头内进行
无线取电， 改善目前感式电极功率输出指示不直观的问题， 能实时指示功率， 便于使用者对设备的状态进行判断， 提高了使用的便利度。
[0008] 因获取的电压为射频信号， 即在后端加射频二极管对其整流， 同时为了防止获 取的电压过大， 导致流过发光 LED的电流过大以致烧毁， 设计了稳压管限制电压 再加限流电阻保证发光二极管不会烧坏的同时根据不同的短波功率输出， 发出 不同的强度的光。
[0009] 作为本实用新型的进一步改进， 所述整流滤波电路包括电阻 R1、 电阻 R2、 二 极管 D1、 二极管 D2, 所述变压器 T1的输出端与电阻 R1连接， 所述电阻 R1与二极 管 D1的正极连接， 二极管 D1的负极与电阻 R2、 二极管 D2的负极连接， 所述电阻 R2与指示灯 D3的一端连接， 所述指示灯 D3的另一端与二极管 D2的正极、 变压器 T1连接。
[0010] 采用此技术方案， 指示灯 D3亮度随着短波治疗仪输出功率大小变化， 当功率足 够大时能恒定在一个亮度， 而免于烧毁指示灯 D3。 变压器 T1次级耦合的电压并 未超过二极管 D2的稳压电压时， 随着耦合电压增大， 发光二极管 D3能随耦合功 率曾大而变亮， 即指示 LED能反映输出功率大小； 当变压器 T1次级耦合电压超 过 D2稳压电压时， 指示灯 D3恒定在一个固定的亮度。 这样， 可以通过 LC谐振电 路获得的能量大小， 体现功率大小， 从而通过指示灯的亮度显示， 便于使用者 更好的监测和判断设备的输出状态。
[0011] 作为本实用新型的进一步改进， 所述 LC谐振电路包括谐振耦合电感和电容 C1 ， 所述谐振耦合电感采用镍锌铁氧体磁芯绕线而成， 所述电容 C1的两端与变压 器 T1的输入端连接。 进一步的， 所述电容 C1为射频电容。 进一步优选的， 所述 电容 C 1为 NP0材质； 谐振耦合电感的材质为磁导率低的镍锌铁氧体。
[0012] 因为 LC谐振电路无线接收来自感式电极上的频率 27.12MHz、 最大功率达数百 瓦的射频大信号， 区别于常规频率为 lOOKHz左右以及频率数 MHz无线充电耦合 方式， 为保证连续稳定工作， LC电路的元件有特殊射频要求， 电容采用温漂小 、 ESR （等效串联电阻） 小的射频电容； 为尽量减少占用面积， 谐振耦合电感并 非采用常规无线充电中的大面积环状漆包线或环状 PCB走线， 而是采用采用高频 性能好、 磁导率低的镍锌铁氧体磁芯绕线而成。 这样整个输出指示系统所占用
面积小， 能控制在 5cm*3cm以内。
[0013] 作为本实用新型的进一步改进， 所述变压器的初次级比为 1:1
[0014] 作为本实用新型的进一步改进， 所述指示灯为发光二极管。
[0015] 作为本实用新型的进一步改进， 所述短波治疗仪感式电极头功率输出指示机构 包括第一电路板和第二电路板， 所述 LC谐振电路位于第一电路板上， 所述变压 器、 整流滤波电路和指示灯位于第二电路板上， 所述第一电路板和第二电路板 电连接， 所述第一电路板位于感式电极头的内部。
[0016] 本实用新型公开了一种短波治疗仪， 其包括如上所述的短波治疗仪感式电极头 功率输出指示机构。
发明的有益效果
有益效果
[0017] 与现有技术相比， 本实用新型的有益效果为：
[0018] 采用本实用新型的技术方案， 不同于常规的取电方式， 而是直接从感式电极输 出头内进行无线取电， 并在电极输出头上直接驱动发光二极管， 指示当前功率 输出状态， 从而改善目前感式电极功率输出指示不直观的问题， 实现了实时指 示功率； 而且无需额外操作或额外设备， 感式电极头本身集成了该指示系统， 提高了使用便利度。
对附图的简要说明
附图说明
[0019] 图 1是本实用新型的电感电极功率输出指示灯的电路图。
[0020] 图 2是本实用新型的指示灯 PCB板的结构示意图。
发明实施例
本发明的实施方式
[0021] 下面结合附图， 对本实用新型的较优的实施例作进一步的详细说明。
[0022] 如图 1所示， 一种短波治疗仪感式电极头功率输出指示机构， 其包括 LC谐振电 路、 变压器、 整流滤波电路和指示灯， 所述 LC谐振电路通过变压器与整流滤波 电路连接， 所述整流滤波电路与指示灯连接； 所述 LC谐振电路位于短波治疗仪
感式电极头的内侧。 所述指示灯为发光二极管。
[0023] 具体而言， 如图 1所示， 所述整流滤波电路包括电阻 R1、 电阻 R2、 二极管 D1、 二极管 D2, 所述变压器 T1的输出端与电阻 R1连接， 所述电阻 R1与二极管 D1的正 极连接， 二极管 D1的负极与电阻 R2、 二极管 D2的负极连接， 所述电阻 R2与指示 灯 D3的一端连接， 所述指示灯 D3的另一端与二极管 D2的正极、 变压器 T1连接。 采用该电路， 可以通过指示灯的亮度显示体现功率的大小， 便于使用者更好的 监测和判断设备的输出状态。
[0024] 所述 LC谐振电路包括谐振耦合电感和电容 Cl， 所述谐振耦合电感采用镍锌铁 氧体磁芯绕线而成， 所述电容 C1的两端与变压器 T1的输入端连接。 所述电容 C1 为射频电容。 因为射频大功率无线取电， 驱动指示灯的电流大小与耦合的变压 器圈数及匝数比相关， 本实施例变压器 T1的初次级比为 1: 1。 进一步， 所述电容 C 1为 NP0材质； 谐振耦合电感的材质为磁导率低的镍锌铁氧体。
[0025] 如图 2所示， 所述短波治疗仪感式电极头功率输出指示机构包括第一电路板 A板 和第二电路板 B板， 所述 LC谐振电路位于第一电路板上， 所述变压器、 整流滤波 电路和指示灯位于第二电路板上， 所述第一电路板和第二电路板电连接， 所述 第一电路板位于感式电极头的内部。 LC取电部分独立为 A板， 整流及其他部分 为 B板， 安装后通过导线连接。 组装的时候将 A板装到感式电极内部， 目的可以 获取足够的能量。 因获取的电压为射频信号， 即在后端加射频二极管对其整流 ， 同时为了防止获取的电压过大， 导致流过发光 LED的电流过大以致烧毁， 设计 了稳压管限制电压再加限流电阻保证发光二极管不会烧坏的同时根据不同的短 波功率输出， 发出不同的强度的光。
[0026] 以上所述之具体实施方式为本实用新型的较佳实施方式， 并非以此限定本实用 新型的具体实施范围， 本实用新型的范围包括并不限于本具体实施方式， 凡依 照本实用新型之形状、 结构所作的等效变化均在本实用新型的保护范围内。
Claims
[权利要求 1] 一种短波治疗仪感式电极头功率输出指示机构， 其特征在于： 其包括
LC谐振电路、 变压器、 整流滤波电路和指示灯， 所述 LC谐振电路通 过变压器与整流滤波电路连接， 所述整流滤波电路与指示灯连接； 所 述 LC谐振电路位于短波治疗仪感式电极头的内侧。
[权利要求 2] 根据权利要求 1所述的短波治疗仪感式电极头功率输出指示机构， 其 特征在于： 所述整流滤波电路包括电阻 R1、 电阻 R2、 二极管 D1、 二 极管 D2, 所述变压器 T1的输出端与电阻 R1连接， 所述电阻 R1与二极 管 D1的正极连接， 二极管 D1的负极与电阻 R2、 二极管 D2的负极连接 ， 所述电阻 R2与指示灯 D3的一端连接， 所述指示灯 D3的另一端与二 极管 D2的正极、 变压器 T1连接。
[权利要求 3] 根据权利要求 2所述的短波治疗仪感式电极头功率输出指示机构， 其 特征在于： 所述 LC谐振电路包括谐振耦合电感和电容 C1， 所述谐振 耦合电感采用镍锌铁氧体磁芯绕线而成， 所述电容 C1的两端与变压 器 T1的输入端连接。
[权利要求 4] 根据权利要求 3所述的短波治疗仪感式电极头功率输出指示机构， 其 特征在于： 所述电容 C1为射频电容。
[权利要求 5] 根据权利要求 3所述的短波治疗仪感式电极头功率输出指示机构， 其 特征在于： 所述变压器的初次级比为 1: 1。
[权利要求 6] 根据权利要求 1~5任意一项所述的短波治疗仪感式电极头功率输出指 示机构， 其特征在于： 所述指示灯为发光二极管。
[权利要求 7] 根据权利要求 1~5任意一项所述的短波治疗仪感式电极头功率输出指 示机构， 其特征在于： 其包括第一电路板和第二电路板， 所述 LC谐 振电路位于第一电路板上， 所述变压器、 整流滤波电路和指示灯位于 第二电路板上， 所述第一电路板和第二电路板电连接， 所述第一电路 板位于感式电极头的内部。
[权利要求 8] 一种短波治疗仪， 其特征在于： 其包括如权利要求 1~7任意一项所述 的短波治疗仪感式电极头功率输出指示机构。
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| CN111707866A (zh) * | 2020-06-24 | 2020-09-25 | 河南翔宇医疗设备股份有限公司 | 医用短波治疗仪输出功率检测装置 |
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| CN2211287Y (zh) * | 1993-10-09 | 1995-11-01 | 郝志勇 | 减肥治疗仪 |
| CN1258546A (zh) * | 2000-01-14 | 2000-07-05 | 叶志明 | 微波治疗仪 |
| CN2518471Y (zh) * | 2001-12-30 | 2002-10-30 | 杨万全 | 点痣除斑器 |
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