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:
Mar. 08, 1994
Filed:
Apr. 29, 1991
Applicant:
Inventors:
Yasuo Watanabe, Komae, JP;
Hideaki Shimazu, Tokyo, JP;
Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128746 ; 604-9 ; 73714 ; 73715 ;
Abstract
This invention provides a method for measuring intracranial pressure and a device for the same which enable intracranial pressure to be accurately measured without any conventional calibration using data obtained by previous measurement because they are characterized in that intracranial pressure is measured after a communication valve capable of communicating with the atmosphere is closed following zero point correction of a pressure transducer performed by adjusting the internal pressure of a flexible membrane provided at the tip of a pressing part and filled with a fluid to atmospheric pressure by the operation of the above communication valve.