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:
Jul. 02, 1996
Filed:
Dec. 21, 1994
Kenji Yamazaki, Koganei, JP;
Toshio Mori, Chino, JP;
Sun Medical Technology Research Corporation, Nagano-ken, JP;
Abstract
An artificial internal organ, such as an artificial heart, comprising a pump unit through which blood circulates and a drive shaft for driving the pump unit, the drive shaft having a shaft sealing system thereon. The shaft sealing system is supplied with a sealing solution from a sealing solution chamber and a sealing solution bag. The sealing solution is formed mainly of a physiological saline, which is loaded with a protease or several kinds of aminopeptides. When blood gets into the shaft sealing system, it is prevented from coagulating by these admixtures. Although blood in the shaft sealing system of this type coagulates in a unique mechanism different from a conventional one, the protease and the aminopeptides never lose their effects even in such a unique situation.