A - Human Necessities – 61 – L
Patent
A - Human Necessities
61
L
326/3, 167/328
A61L 15/60 (2006.01) A61K 41/00 (2006.01) A61N 5/00 (2006.01) C08L 29/04 (2006.01) G01R 33/58 (2006.01)
Patent
CA 1297797
ABSTRACT OF THE DISCLOSURE: A material for simulating a living tissue for use in the electromagnetic wave and ultrasonic wave therapies is provided. The material comprises a hydrogel having a high water content. The hydrogel is prepared by the steps of casting an aqueous polyvinyl alcohol solution into a mold, cooling the cast aqueous solution to obtain a cooled frozen mass and thawing the cooled frozen mass. The cooling and thawing steps may be repeated up to eight cycles. The hydrogel is also prepared by subjecting the cooled frozen mass to a partial dehydration step in vacuum.
535289
Akojima Kazuo
Nambu Masao
Sakamoto Tomoyuki
Watari Tsutomu
Marks & Clerk
Nippon Oil Co. Ltd.
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