THERAPEUTIC APPLICATIONS OF ELECTROMAGNETIC POWER
THERAPEUTIC APPLICATIONS OF ELECTROMAGNETIC POWER
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DOI：
10.1109/proc.1974.9385
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发表时间：
1974-01-01
影响因子：
20.6
通讯作者：
STONEBRIDGE, JB
中科院分区：
文献类型：
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作者：
GUY, AW;LEHMANN, JF;STONEBRIDGE, JB
自从电磁(EM)源对人类可用以来，用于治疗应用的电磁(EM)电源就一直存在。几十年来，物理医学一直是短波(27.33 MHz)和微波(2450 MHz)透热疗法的主要使用者，在这些透热疗法中，电磁功率已被用于加热深层组织，以刺激各种医学上有益的生理反应，以缓解某些病理状况。实验和临床研究表明，在需要治疗的深层组织中，将组织温度提高到41°C到45°C，需要吸收的功率密度从50 W/kg到170 W/kg，就会出现这些反应。疼痛反应和大量血液冷却能力的组合似乎足以将加热限制在血管和神经组织中的安全但有效的水平。最近的研究表明，在向深层组织传递最大功率方面，使用915 MHz的工业、科学和医疗(ISM)频率比目前使用的2450 MHz微波频率更有效。结果还表明，除了热应用，微波能量还可以用于通过植入的微型微波二极管对神经动作电位的受控经皮刺激。
The use of electromagnetic (EM) power for therapeutic applications has existed since EM sources have been available to man. Physical medicine has been a major user of both shortwave (27.33 MHz) and microwave (2450 MHz) diathermy over the decades in which the EM power has been used to heat deep tissues for stimulating various medically beneficial physiologic responses in the relief of certain pathological conditions. Experimental and clinical research indicates that these responses will occur as a result of elevating the tissue temperatures in the range 41° to 45°C requiring absorbed power densities from 50 to 170 W/kg in the deep tissues where treatment is desired. The combination of pain responses and a large reserve of blood cooling capacity seems to be sufficient for limiting the heating to safe, but therapeutic levels in vasculated and innervated tissue. Recent research has shown that the use of the industrial, scientific, and medical (ISM) frequency of 915 MHz is more efficient than the currently used 2450-MHz microwave frequency in terms of maximum power transfer to deep tissues. The results also show that in addition to thermal applications, microwave energy can be used for the controlled transcutaneous stimulation of nerve action potentials via implanted miniature microwave diodes.