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, 1980
Filed:
Jun. 05, 1978
William J Williams, Ann Arbor, MI (US);
Weisman & Allen, Madison Heights, MI (US);
Abstract
The operation of a patient's cardiovascular system is analyzed by positioning an inflatable cuff over an extremity of the patient so that a blood vessel in the extremity experiences the cuff pressure and then modifying the pressure in the cuff through a cycle in which the vessel is occluded. A first electrical signal is generated as a function of the pressure in the cuff during the cycle and a second electrical signal is independently generated as a function of the rate of change of pressure in the cuff through use of a transducer which receives a fluid signal proportional to the pressure in the cuff and moves a core with respect to a wire coil to generate the rate of change signal. The two signals are plotted relative to one another and the resulting plot includes information relating to cardiovascular disfunctions such as arhythmia, ischemia and hypertrophy.