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:
Aug. 31, 1976
Filed:
Jul. 16, 1974
Applicant:
Inventor:
Lewis Fleischmann, Randallstown, MD (US);
Assignee:
Hittman Corporation, Columbia, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128 / ; 73393 ; 73410 ; 73411 ; 128 / ; 128 / ; 250336 ;
Abstract
A pressure sensor apparatus primarily for sensing pressure in a body cavity such as the cranium, bladder or vena cava of an animal or human comprising a Bourdon or bellows type pressure gauge connected to a flexible member such as a metallic disc or corrugated bellows tambour containing a non-radioactive fluid. A discrete mass of radioactive material is connected to the pressure gauge and moves proportionally to the pressure sensed by the flexible member. A radiation detector senses the movement of the radioactive material through a window in a radiation shield.