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. 04, 1987
Filed:
Jul. 09, 1984
Roy K Kodama, Thousand Oaks, CA (US);
Donald J Koneval, Arlington Heights, IL (US);
Gould, Inc., Rolling Meadows, IL (US);
Abstract
A physiological pressure sensing and monitoring system including a sterile throwaway pressure transducing device. The device includes a pressure transducer mounted together with a flow control valve in a housing. The device includes a first connector for connecting the device to a source of sterile solution, a second connector for electrically connecting the pressure transducer to a monitoring device, and a third connector for selectively connecting the device to a catheter inserted into a patient's circulatory system. The device, including the connectors, is made to be low cost so as to permit the entire device to be installed and discarded as a unit so as to constitute a throwaway pressure sensing and flow regulator. The pressure transducer includes a novel mounting of the strain gage beam to the isolator which has been found to effectively avoid cracking and breaking of the beam from the stress forces applied thereto in the operation of the device. In the illustrated embodiment, the lower surface of the beam is secured to the upper surface of the isolator, and the upper surface of the beam is engaged by a link connected to a displaceable diaphragm. The isolator is connected by a pair of supports to a frame such that thermally induced stresses in the frame do not affect the zero-point of the strain gage.