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. 08, 1978
Filed:
Aug. 13, 1976
William J Williams, Ann Arbor, MI (US);
William J Heetderks, Ann Arbor, MI (US);
Other;
Abstract
A method and arrangement for the indirect measurement of systolic and diastolic blood pressure is disclosed which involves applying an occluding inflatable cuff to a body member, with the pressure applied thereby being cycled between a pressure greater than systolic and a pressure less than diastolic. Systolic blood pressure is detected by sensing the point in the pressure cycle at which the blood flow in the occluded member shifts between a flow and no flow condition, while diastolic blood pressure is detected by sensing a characteristic change in slope of blood pulse wave form changes occurring with changing cuff pressures which occurs at a cuff pressure equal to the diastolic pressure. An approach for correcting the systolic and diastolic pressure measurements obtained by this method at one point of the body to give equivalent readings of the systolic and diastolic blood pressure at another point is also disclosed.