The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 25, 1990
Filed:
Feb. 29, 1988
Masao Nambu, Yokohama, JP;
Tsutomu Watari, Tokyo, JP;
Tomoyuki Sakamoto, Kokubunjimachi, JP;
Kazuo Akojima, Yachiyo, JP;
Nippon Oil Co., Ltd., Tokyo, JP;
Abstract
A method for applying electromagnetic wave and ultrasonic wave therapies is provided. According to the method, a material simulating a living tissue is applied and pressed onto a surface of a human body so that the material is intimately contacted with the body surface with substantially no spaces present therebetween. Electromagnetic or ultrasonic wave is generated and irradiated to the body through the material. 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.