• Title/Summary/Keyword: Thermal therapy

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Optimization of sintering process of the far-infrared radiation ceramic (원적외선 방사 세라믹의 소결공정 최적화)

  • Park, Jae Hwa;Kim, Hyun Mi;Kang, Hyo Sang;Choi, Jae Sang;Choi, Bong Geun;Nam, Ki Woong;Nam, Han Woo;Shim, Kwang Bo
    • Journal of the Korean Crystal Growth and Crystal Technology
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    • v.26 no.1
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    • pp.28-34
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    • 2016
  • Far-infrared radiation ceramic is an attractive material that provides thermal therapy by permeating the infrared rays into the deep inside of the human skin. Therefore, it is currently used for thermal therapy devices, thermal mat, heating equipment and so on. This work aims to optimize the sintering process of the far-infrared radiation ceramic with the process parameters of temperature and time. A variety of characterization tools have been used to investigate the optimal sintering condition of far-infrared radiation. The phase of far-infrared radiation ceramic was characterized by using X-ray diffraction (XRD) and microstructure of fracture surface was studied by scanning electron microscopy (SEM). The FT-IR was also performed to measure the far-infrared emissivity.

Expression of MCP-1 in Spinal Dorsal Horn in a Rat Model of Lumbar Disc Herniation (추간판 탈출증 흰 쥐 모델에서 척수후각에서의 MCP-1의 발현)

  • Cho, Yun-Woo;Park, Hea-Woon;Kim, Su-Jeong;Seo, Jeong-Min;Do, Sung-Jin;Ahn, Sang-Ho
    • The Journal of Korean Physical Therapy
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    • v.21 no.3
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    • pp.95-102
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    • 2009
  • Purpose: This study evaluates MCP-1 expression in the dorsal horn of a rat model of lumbar disc herniation by an autograft of the nucleus pulposus to the spinal nerve. Methods: After a coccygeal nucleus pulposus graft to the left $5^{th}$ lumbar spinal nerve, proximal to dorsal root ganglion, mechanical allodynia and thermal hyperalgesia were assessed 1 day before surgery, and 1, 10, 20, 30 days after surgery. The mRNA of MCP-1 in the dorsal horn was assessed by real time PCR to compare the temporal pattern of neuropathic pain of the lumbar disc herniation model. Results: In the ipsilateral side of the lumbar disc herniation models, mechanical allodynia and thermal hyperalgesia reached a maximum at 10 days after surgery with significant difference from the control group. Pain was also provoked in the contralateral side of the lumbar disc herniation models with less intensity than the ipsilateral side. The level of MCP-1 mRNA expression in the dorsal horn reached a peak at 20 days after surgery. Conclusion: Mechanical allodynia and thermal hyperalgesia was induced by nucleus pulposus in a rat lumbar disc herniation model, similar to a previously reported peripheral nerve injury model. The level of MCP-1 expression was higher in the dorsal horn of the ipsilateral and contralateral sides. These results suggest that MCP-1 might play a role in the maintenance of neuropathic pain.

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Effect of Passive Temperature Therapy of the Femoral Muscles on the Countermovement Jump Performance

  • Lee, Jintaek;Panday, Siddhartha Bikram;Byun, Kyungseok;Lee, Jusung;Hwang, Jinny;Moon, Jeheon
    • Korean Journal of Applied Biomechanics
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    • v.29 no.4
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    • pp.227-235
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    • 2019
  • Objective: The purpose of this study was to evaluate the effect of passive-acute temperature therapy of the femoral muscle and dynamic warm-up on the countermovement jump performance. Method: Twenty male track and field athletes from national team underwent three treatments applied on the femoral muscles; cold temperature treatment, thermal treatment and dynamic warm-up. The variables extracted at 2 time points (pre-measurement and post measurement) were the temperature of the left and right femoral muscle, displacement & velocity of centre of mass, peak power out, range of motion and moment & power of the knee joint. Results: There was a statistically significant difference in the temperature of the femoral muscle according to measurement time which was high in the order of thermal treatment, dynamic treatment and cold treatment. The jump height was the highest in the dynamic warm-up with no statistically significant difference for the range of motion of the knee joint. The peak power out at dynamic warm-up and the power of the knee joint were statistically significant according to the treatment and measurement time. Conclusion: Local cold and thermal treatment of femoral muscles at ambient temperature did not improve jump performance, while dynamic warm-up was considered to be effective for maintaining the performance of the activities that require strong muscular power.

The Effect of Warming Methods on the Vital Signs and Thermal Discomfort of the Patient with Gastrectomy (가온요법이 위암수술 환자의 활력징후와 체온불편감에 미치는 효과)

  • Hong, Sung-Jung;Lee, Ji-Min;Kim, Yun-Kyung
    • Journal of Korean Biological Nursing Science
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    • v.12 no.2
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    • pp.81-88
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    • 2010
  • Purpose: The purpose of this study was to compare effects of intravenous fluid warming and forced-air warming on perioperative body temperature, Blood Pressure, Pulse and thermal discomfort after gastrectomy under general anesthesia. Methods: Data collection was performed from October, 2009 to February, 2010. The intravenous fluid warming group (27) was warmed through an IV line by an Animec set to $37^{\circ}C$. The forced-air warming group (27) was warmed by Bair Hugger System. The warming continued from induction of general anesthesia to two hours after completion of surgery. The data was analyzed by t-test, $X^2$, repeated measures ANOVA using SPSS/WIN 17.0. Results: There was a significant difference of body temperature and thermal discomfort between the intravenous fluid warming group and the forced-air warming group. Conclusion: We need to explore the effects combination of the intravenous fluid warming and the forced-air warming, and other warming therapy and the efficiency of modalities with regards to cost benefit is also needed.

Developing Thermal Treatment Device for Pain Relief of Prostatism Patient (전립선 비대증 환자의 배뇨 통증 완화를 위한 개인용 전립선 온열 치료기 개발)

  • Park, Sung Yun;Kim, Sung Min
    • Journal of the Institute of Electronics and Information Engineers
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    • v.51 no.10
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    • pp.210-212
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    • 2014
  • The prostatic disease is one of common disease on andropathy. The prostatism, one disease of prostatic disease. is leaded a urination pain. To treat the this disease, Laser surgery is usually used with medicine treatment. Recently, the method of thermal therapy is rapidly increasing. Then we made the personal thermal treatment device for decreasing urination pain. And we have good performance data using pig skin.

Treatment of Refractory Melasma with Microwave-generated, Atmospheric-pressure, Non-thermal Nitrogen Plasma

  • Kim, Hyun-Jo;Kim, Heesu;Kim, Young Koo;Cho, Sung Bin
    • Medical Lasers
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    • v.8 no.2
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    • pp.74-79
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    • 2019
  • Periorbital melasma is often refractory to treatment and highly associated with rebound hyperpigmentation or mottled hypopigmentation after laser treatment in Asian patients. In this report, we describe 2 patients with cluster-1 periorbital melasma and 1 patient with cluster-2 periorbital melasma who experienced remarkable clinical improvements after microwave-generated, atmospheric-pressure, non-thermal nitrogen plasma treatments. All patients exhibited limited clinical responses after combination treatments with topical bleaching agents, systemic oral tranexamic acid, and low-fluenced Q-switched neodymium (Nd):yttrium-aluminum-garnet (YAG) lasers. Low-energy nitrogen plasma treatment at 0.75 J elicited remarkable clinical improvement in the periorbital melasma lesions without post-laser therapy rebound hyperpigmentation and mottled hypopigmentation. We deemed that a single pass of nitrogen plasma treatment at 0.75 J induces mild microscopic thermal tissue coagulation and modification within the epidermis while preserving the integrity of the basement membrane in patients with periorbital melasma. Accordingly, nitrogen plasma-induced dermal tissue regeneration could play a role in the treatment of melasma lesions.

The Effect of Shinbaro and Bee Venom Pharmacopuncture in Treating Lumbar Disc Herniations (요추간판 탈출증에 대한 신바로약침과 봉약침의 치료효과 비교 연구)

  • Park, Ok Ju;Kim, Sul Gi;Lee, Jeong Ju;Lee, Sang Mi;Kim, Seong Joung;Cho, Nam Geun
    • Journal of Acupuncture Research
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    • v.30 no.5
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    • pp.41-50
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    • 2013
  • Objectives : This study was performed to compare the effects of Shinbaro pharmacopuncture therapy and bee venom pharmacopuncture therapy in lumbar disc herniation Methods : We compared treatment efficacy of 12 patients with Shinbaro pharmacopuncture therapy and 10 patients with bee venom pharmacopuncture therapy, all of whom were diagnosed with lumbar disc herniation using computed tomography(CT) or magnetic resonance imaging(MRI). We performed a retrospective comparison and analysis during the course of 21 days since admission. To evaluate the treatment efficacy, we recorded the temperatures of the opposite back, hip, and legs with visual analog scale(VAS, back and legs), pain rating scale(PRS), Oswestry disability index(ODI) and digital infrared thermal imaging(DITI) based on patients' medical records. Results : Both treatments were effective in reducing pain and improving functions for lumbar disc herniation patients in terms of VAS, PRS, ODI, DITI. Shinbaro pharmacopuncture group showed slightly better results than the bee venom pharmacopuncture group, but the difference was not significant. Conclusions : For the treatment of lumbar disc herniation, it is suggested that Shinbaro pharmacopuncture therapy is thought to be as effective as bee venom pharmacopuncture therapy without side effects, although further study would be necessary.

The Effect of Topical and Conduction Anesthesia by Phonophoresis with Lidocaine (Lidocaine 음파영동에 의한 표면마취 및 전달마취 효과)

  • Jeong, Dae-In;Yoon, Se-Won;Choi, Sug-Ju;Lee, Jung-Woo;Jeong, Jin-Gyu;Kim, Tae-Youl
    • Journal of the Korean Academy of Clinical Electrophysiology
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    • v.4 no.1
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    • pp.63-83
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    • 2006
  • This study conducted the following experiment to examine anesthetic effects of 500 kHz ultrasound with lidocaine. Clinical experiment was conducted to compare local anesthetic effects by ultrasound frequencies and drugs with 40 normal adults and it divided subjects into experimental group (I) applying only ultrasound, ointment group (II) applying only lidocaine, phonophoresis group of 1 MHz (III), phonophoresis group of 500 kHz lidocaine (IV) for pain threshold and nerve conduct experiments. Mechanical threshold was measured with von Frey monofilament, thermal pain threshold with halogen lamp and digital thermometer, action potential in median nerve with diagnostic electromyography before and after treatment, and at 30 min., 60 min., 90 min., and 120 min. after treatment. Results of this study can be summarized as follows. Topical anesthesia experiment showed that pain threshold of phonophoresis groups was significantly increased, but there were little differences in ultrasound frequency and drugs among phonophoresis groups. Conduction anesthesia experiment showed that phonophoresis group of 500 kHz using lidocaine had significant difference in pain threshold and sensory nerve conduction compared to ointment group and ultrasound group, but there was no great difference from other phonophresis groups and light nerve block effect was found. It was considered that application of 500 kHz ultrasound using lidocaine will be more effective in deep anesthesia or nerve block than 1 MHz ultrasound. However, researches considering various frequencies, intensities and application hours in low frequency areas including kHz ultrasound are needed to increase deep permeation of drugs.

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The Effect of Transfer Modality, Temperature, and Application Time on Gastrocnemius Muscle Activation in Healthy People (한냉과 온열의 적용 시간과 전달 방식이 장딴지근의 근 활성도에 미치는 영향)

  • Lee, Young-Sin;Bae, Sea-Hyun
    • Journal of the Korean Society of Physical Medicine
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    • v.12 no.2
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    • pp.1-8
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    • 2017
  • PURPOSE: The purpose of this study was investigate the changes of gastrocnemius (GCM) muscle activity by applying different hot and cold therapeutic modalities. METHODS: A total of 20 healthy subjects were enrolled into the study. We selected transfer modalities that are frequently used in clinical settings: conduction, radiation, and convection. We performed hot pack, ice pack, and infrared therapy for 10, 20, and 30 minutes. After each application, a break was taken between each day. In addition, we performed cryotherapy for 3 min (airflow rate = $-6{\sim}-20^{\circ}C$). We measured muscle activity changes in the GCM muscle. RESULTS: For the conduction method, muscle activity significantly increased after ice pack therapy for 10 min and 20 min but decreased after hot pack therapy for 10 min and 20 min. For the radiation method, muscle activity significantly decreased after infrared therapy for 10 min and 20 min. For the convection method, muscle activity significantly increased after cryotherapy for 3 min and 10 min. There were no differences in the change of muscle activity in the conduction and radiation transfer method using heat. However, there were differences in the change of muscle activity in the conduction and convection transfer method with cold application. CONCLUSION: For a reduction in muscle activity, regardless of the transfer type, thermal application for 20 min would be effective. For an increase in muscle activity, cold pack application or cryotherapy for 20 min would be effective. This study could contribute toward therapeutic modality application in changing muscle activity.

Calculation of thermal neutron scattering data of MgF2 and its effect on beam shaping assembly for BNCT

  • Jiaqi Hu;Zhaopeng Qiao;Lunhe Fan;Yongqiang Tang;Liangzhi Cao;Tiejun Zu;Qingming He;Zhifeng Li;Sheng Wang
    • Nuclear Engineering and Technology
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    • v.55 no.4
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    • pp.1280-1286
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    • 2023
  • MgF2 as a moderator material has been extensively used in the beam shaping assembly (BSA) that plays an important role in the boron neutron capture therapy (BNCT). Regarded as important for applications, the thermal neutron scattering data of MgF2 were calculated, based on the phonon expansion model. The structural properties of MgF2 were researched by the VASP code based on the ab-initio methods. The PHONOPY code was employed to calculate the phonon density of states. Furthermore, the NJOY code was used to calculate the thermal neutron scattering data of MgF2. The calculated inelastic cross sections plus absorption cross sections are in agreement with the available experimental data. The neutron transport in the BSA has been simulated by using a hybrid Monte-Carlo-Deterministic code NECP-MCX. The results indicated that compared with the calculation of the free gas model, the thermal neutron flux and epithermal neutron flux at the BSA exit port calculated by using the thermal neutron scattering data of MgF2 were reduced by 27.7% and 8.2%, respectively.