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:
Oct. 26, 1982
Filed:
Mar. 05, 1980
Donald E Laughlin, West Branch, IA (US);
Paul J Krumm, West Branch, IA (US);
University of Iowa Research Foundation, Iowa City, IA (US);
Abstract
The present invention comprises a vacuum cup having a concave undersurface on which is mounted a doppler flow transducer. A vacuum tube is in communication with the undersurface of the cup and is capable of removing the air from beneath the suction cup so as to permit the suction cup to be clamped over an artery or other vessel. The device is used by activating the transducer to cause it to transmit a sound signal into the artery. The secondary or echo sounds created by this sound signal are sensed by the transducer and the transducer converts these secondary sound signals into electrical signals which are transmitted to means for analyzing the signals so as to determine the velocity of fluid flow within the vessel.