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Biomedical subjects

M Ezawa

Publications and source records attributed to M Ezawa.

4 recordsLinked to original sources
PubMed1998

Interfacial tension of aqueous two-phase systems containing poly(ethylene glycol) and dipotassium hydrogenphosphate.

Liquid-liquid equilibrium (LLE) compositions and interfacial tensions of the aqueous two-phase system containing poly(ethylene glycol) (PEG 4000, average Mr=3500; PEG 6000, average Mr=7500; and PEG 20000, average Mr =20000) and dipotassium hydrogenphosphate were experimentally determined by using a shaking flask method and a drop volume method at 288.15, 298.15 and 308.15 K, respectively.

Chemistry Techniques, Analytical↗
PubMedDate not supplied

Electrical safety testing of medical equipment in Japan.

In Japan, the manufacture and sale of medical electrical equipment requires the permission and license of the Ministry of Health and Welfare. Electrical safety tests must be conducted at an official institution. This paper presents the statistical results of a series of 404 safety tests of medical devices, reports the electrical safety problems encountered, and suggests electrical design considerations for safety.

Electricity↗
PubMedDate not supplied

Technical note: new connecting devices for potential equalization.

Two types of new equipotential connecting devices have been developed for the medical electrical equipment. The features of each type include lower contact resistance, firm connection between socket and pin and a high level of safety. The results of testing a third type of connector (developed earlier) are included. They have individual features which users can select according to their particular purposes of use. The new devices will contribute to improved safety of the medical electrical equipment.

Electric Conductivity↗