公开(公告)号：US3580071A

公开(公告)日：1971-05-25

申请号：US3580071D

申请日：1969-02-26

Applicant: STATHAM INSTRUMENT INC

Inventor： HICKMAN NORMAN A

IPC: A61B5/0265 ,  G01F1/58 ,  G01P5/08

CPC classification number: A61B5/6876 ,  A61B5/0265 ,  A61B5/6884 ,  G01F1/58

Abstract: An insulative hollow cylindrical tube of inner bore sufficient to accommodate a blood vessel under test, has a longitudinal wedge-shaped portion that is removable to provide an access opening. A first magnetizing coil includes a core that extends circumferentially about the insulative cylinder of substantial angular extent. A second coil has a core extending in the same direction, but of substantially less angular extent than the core of the first coil. The two coils are serially related and energized to induce a potential in the flowing blood which is measured by electrodes carried by the insulative cylinder. The entire assembly is enclosed with a further cover cylinder concentrically arranged about the first coil and end plates. The present invention relates generally to a blood flowmeter, and, more particularly, to a probe for mounting about a blood vessel to measure the flow rate of blood passing therethrough.