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Japanese

Opthalmic medicine at the time of blackout. Use of a power supply from plug-in hybrid electric vehicle Kosaku Tagawa 1 , Kazuo Kawasaki 2 1Oyabe Tagawa Eye Clinic 2Jinzuu Eye Clinic pp.913-918
Published Date 2020/7/15
DOI https://doi.org/10.11477/mf.1410213625
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Abstract Purpose:We evaluate electric power supply from plug-in hybrid electric vehicle(PHEV)to ophthalmic instruments at the time of blackout due to electric power failure.

Methods:Outlander PHEV(Mitsubishi Motors)has a large storage battery and a generator. We connected each ophthalmic instruments to PHEV with an electricity cord, and estimated whether instruments work or not.

Results:Each of slit-lamp biomicroscope(50 W), indirect ophthalmoscope(50 W), auto refracto-keratometer(70 W), tonometer(70 W), auto-table(150 W), auto-chair(200 W), YAG laser(500 W), receipt computer(400 W), cataract surgery machine(400-500 W), operating microscope(400-700 W)and operating bed(400 W)start worked well by electric power supply from PHEV in individual use of these instruments. During simultaneous power supply to receipt computer, slit-lamp biomicroscope, auto-chair, indirect ophthalmoscope and tonometer from PHEV ophthalmic practice was possible for two hours. PHEV consumed only one tenth storage of the battery energy. During this trial the printer of receipt computer and the vertical movement of slit-lamp biomicroscope table were not used to cover a power shortage.

Conclusion:Ophthalmic practice was possible using electric power supply from PHEV to ophthalmic instruments below the maximum power of 1500 W. IF we need more electricity, we should use V2H or some PHEVs.


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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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