公开(公告)号：US3552381A

公开(公告)日：1971-01-05

申请号：US3552381D

申请日：1967-05-23

Applicant: BELL TELEPHONE LABOR INC

Inventor： BURNS GORDON K ,  COURTNEY-PRATT JEOFRY S

IPC: A61B5/00 ,  A61B5/0225 ,  A61B5/026 ,  A61B5/02

CPC classification number: A61B5/02208 ,  A61B5/0002 ,  A61B5/0225 ,  A61B5/026

Abstract: Diastolic blood pressure measurement by arterial auscultation is afforded by arresting flow as with a pressure cuff and then applying increasingly negative pressure probes to the cuff generally coincident with each phono- or electrocardiographically ascertained minimum of the heart''s pressure cycle, maintaining the negative wave amplitude always in excess of the pulse pressure. Cuff pressure at the onset of Korotkow sound signifies diastolic pressure level. Apparatus is described for unattended, automatic and continuous blood pressure monitoring using this method for diastolic readings. Cuff pressure in one embodiment is held constant as increasingly large negative pressure excursions are applied; in another embodiment cuff pressure is decreased while the negative pressure excursions are held constant in amplitude.

公开(公告)号：US3328766A

公开(公告)日：1967-06-27

申请号：US42499665

申请日：1965-01-12

Applicant: BELL TELEPHONE LABOR INC

Inventor： BURNS GORDON K ,  MADSEN ERIC V