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. 11, 1981
Filed:
May. 10, 1979
Robert J Todd, Salt Lake City, UT (US);
Gregg H Smith, Salt Lake City, UT (US);
Gordon S Reynolds, Bountiful, UT (US);
Sorenson Research Co., Inc., Salt Lake City, UT (US);
Abstract
A manometer for measuring the hydrodynamic pressure of fluids parenterally administered to a patient. The manometer includes a transparent housing which has a passageway formed in the housing that accommodates continuous flow of fluid therethrough. A pressure measuring chamber is formed in the housing and one end of the pressure measuring chamber is in fluid communication with the passageway. The other end of the pressure measuring chamber communicates with an enclosed air space. The fluid flowing through the passageway enters the pressure measuring chamber and rises to a level which is dependent upon the pressure of the fluid flowing through the passageway. Markings are provided on the housing of the manometer which permit the pressure exerted on the fluid flowing through the passageway to be read directly from the level of the fluid in the pressure measuring chamber. In one embodiment of the manometer, the enclosed air space may be adjusted so that the manometer may be normalized for use at any one of several different altitudes. A valve is provided so that the enclosed air space may be vented to the ambient atmosphere when it is desired to set the pressure reading to zero. In another embodiment of the manometer, the pressure measuring chamber is provided with a progressively decreasing cross-sectional flow area from its bottom to its top so that the pressure may be read in a linear fashion.