• Title/Summary/Keyword: electrical meridian potential

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Development of Pains Therapy System Using Focused Variable Electromagnet (비침습 집중형 전자기장을 이용한 통증치료기 개발)

  • Cho, Dong-Guk;Lee, Gyoun-Jung;Kim, Soo-Byung;Kwon, Sun-Min;Shin, Tae-Min;Lee, Kyoung-Joung;Lee, Yong-Heum
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.13 no.6
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    • pp.1157-1166
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    • 2009
  • The effect of acupuncture that occurs at Meridians, can not be defined by western science. But we can find out the electrical effects when acupuncturing by measuring the charges meridians electric potential. So instead of using a needle to acupuncture, we used a electromagnet to give the same effect. We stimulated the meridians, with a electromagnet. Then we observed the pattern of the meridians potential, that occurred at ST-39 and ST-37. After doing clinical experiments with the acupuncture stimulation and the electromagnet stimulation. We found out the acupuncture stimulation and the electromagnet stimulations electric waves were similar. From this result, we knew it was possible to give similar effects to acupuncture stimulation by using electromagnets.

The Current State of Intended Equipment for Heating in Medical Use Based on Domestic Licensed Medical Devices (국내 인·허가 온열의료기기 기술 현황 조사 및 분석)

  • Su-Ran Lim;Jung-Hwan Park;Ji-Yeun Park;Song-Yi Kim
    • Korean Journal of Acupuncture
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    • v.40 no.4
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    • pp.156-168
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    • 2023
  • Objectives : This study aimed to determine the status of thermal stimulation devices approved in Korea for medical applications over the past 10 years, and based on this, to obtain insight for future thermal treatment in Korean medical institutions. Methods : We searched the item classification list entitled "Regulations on Medical Device Items and Rating by Item" from the Ministry of Food and Drug Safety Notice No. 2021-24, 2021 (Enforced March 19, 2021; www.mfds.go.kr) for individually licensed heaters using the terms "heat" and "heating". Results : We identified 17 items of thermal stimulation product group, of which 1,308 devices were licensed by February 4, 2022, and 53.2% of them (n=696) were devices with valid permits for distribution in Korea. Among the licensed devices, heating pad systems under/overlay (electric, home use) were approved the most, but combinational stimulator (for medical use, home use; Grade 2) accounted for the highest percentage among the current valid permission. Moxibustion apparatuses were licensed separately for electrical use and non-electrical use, and occupied a low percentage of the total devices. We analyzed 307 devices that were accompanied by technical documents and found that the heat sources were wires in 145 (47.2%), infrared rays in 44 (14.3%) and ultrasonic waves in 42 (13.7%) devices. Most (83.1%) devices were used for pain relief, while other applications included beauty, cancer treatment, maintenance of infant body temperature, and healing fractures. Conclusions : Thermal stimulation devices accounted for about 0.9% of all medical devices, and among them, combinational stimulators and heating pad systems under/overlay had the most valid permits. Thermal stimulation devices using heating wires and infrared rays were the most prevalent, and most were used to relieve pain. In order to develop a range of thermal stimulation devices that can be utilized in Korean medical institutions, it is imperative that they have potential applications beyond pain management, addressing various medical purposes. To achieve this, foundational research is necessary to effectively apply diverse heat sources based on medical objectives.

Roles of Reactive Oxygen Species on Neuronal Excitability in Rat Substantia Gelatinosa Neurons (척수 아교질 신경세포의 흥분성에 대한 활성산소종의 역할)

  • Choi, Jeong-Hee;Kim, Jae-Hyo;Lim, Sung-Jun;Park, Byung-Rim;Kwon, Kang-Beom
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.21 no.2
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    • pp.432-437
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    • 2007
  • Reactive oxygen species (ROS) are toxic agents that may be involved in various neurodegenerative diseases. Recent studies indicate that ROS are also involved in persistent pain through a spinal mechanism. In the present study, whole cell patch clamp recordings were carried out on substantia gelatinosa (SG) neurons in spinal cord slice of neonatal rats to investigate the effects of ROS on neuronal excitability and excitatory synaptic transmission. In current clamp condition, tert-buthyl hydroperoxide (t-BuOOH), an ROS donor, induced a electrical hyperexcitability during t-BuOOH wash-out followed by a brief inhibition of excitability in SG neurons. Application of t-BuOOH depolarized membrane potential of SG neurons and increased the neuronal firing frequencies evoked by depolarizing current pulses. Phenyl-N-tert-buthylnitrone (PBN), an ROS scavenger, antagonized t-BuOOH induced hyperexcitability. IN voltage clamp conditions, t-BuOOH increased the frequency and amplitude of spontaneous excitatory postsynaptic currents (sEPSCs). In order to determine the site of action of t-BuOOH, miniature excitatory postsynaptic currents (mEPSCs) were recorded. t-BuOOH increased the frequency and amplitude of mEPSCs, indicating that it may modulate the excitability of the SG neurons via pre- and postsynaptic actions. These data suggest that ROS generated by peripheral nerve injury can induce central sensitization in spinal cord.