Device for automatically measuring the blood pressure

Details Device for automatically measuring the blood pressure Device for automatically measuring the blood pressure

1996-07-16

1997-05-27

Sykes, Angela D.

Surgery

Truss

Pad

128680, 128685, A61B 502

Patent

active

056322780

ABSTRACT:
A blood pressure measuring device comprises a sphygmomanometer cuff, a pressure generation device, a pressure sensor, a valve for controllably venting the cuff, and a control unit for controlling the valve. In order to achieve, using only one single valve, a precise adjustment of the cuff pressure of sleeves having different volumes, the valve is constructed as a squeezed tube valve and comprises an elastic tube and a squeezing device adapted to be actuated by an electromagnet and used for said elastic tube, said magnet having a structural design of such a nature that the gradient of the force with respect to the displacement of its force/displacement characteristic is at each operating point smaller than that of the force/displacement characteristic of the elastic tube.

REFERENCES:
patent: 4037587 (1977-07-01), Kaneda et al.
patent: 4116230 (1978-09-01), Gorelick
patent: 4146018 (1979-03-01), Aldridge et al.
patent: 4369951 (1983-01-01), Marsoner et al.
patent: 4459991 (1984-07-01), Hatschek
patent: 4627440 (1986-12-01), Ramsey, III et al.
patent: 4969466 (1990-11-01), Brooks

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