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:
Jun. 10, 1986
Filed:
Aug. 22, 1984
Kenji Kobayashi, Yokohama, JP;
Tsutomu Yasuda, Kawasaki, JP;
Hiroshi Matsumoto, Higashi Kanamachi, JP;
Humiki Sone, Hitachi, JP;
Hitachi Cable, Ltd., Tokyo, JP;
Abstract
A catheter-tip micromanometer includes a photoelastic element, with the photoelastic element changing light propagation constants of two axes perpendicular to each other in response to blood pressure level and direction to which blood pressure is applied. Light is propagated through the photoelastic element at a prescribed angle with regard to the two axes thereof perpendicular to each other by means of a single polarization optical fiber which maintains a plane of polarization whereby blood pressure is measured on the basis of a difference between propagation velocities in two axial directions obtained during the propagation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile