Surgery – Truss – Pad
Patent
1983-08-30
1987-03-31
Howell, Kyle L.
Surgery
Truss
Pad
128686, 128687, A61B 502
Patent
active
046535063
ABSTRACT:
In a method of indirect measurement of arterial tension, a compression cuff is applied to the surface of a patient's body and the pressure in the cuff is varied within a range which covers the systolic and diastolic values of the arterial pressure. As the pressure in the cuff is varied, a change in the magnitude of the angle between the surface of the patient's body and the direction of propagation of the blood pulse wave under the cuff is monitored. The instants when the blood pulse wave appear and disappear are registered by the magnitude of said angle. The pressure effective in the cuff is measured at said instants. The angle between the surface of the patient's body and the direction of propagation of the pulse waves is measured by a device for registering the passing of the pulse waves. The device comprises a housing, a pellet accommodated in the housing with a possibility of oscillating about the pivot axis, said pellet having a contact surface, and a transducer converting oscillations of the pellet into electric signals.
REFERENCES:
patent: 2658505 (1953-11-01), Sheer
patent: 3154066 (1964-10-01), Grindheim et al.
patent: 3315662 (1967-04-01), Buffington
patent: 3903873 (1975-09-01), Royal et al.
patent: 4409983 (1983-10-01), Albert
Howell Kyle L.
Sykes Angela D.
Vsesojuzny Nauchno-Issledovtelsky i Ispytatelny Institut Meditsi
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