Pressure transducer dome

Details Pressure transducer dome Pressure transducer dome

1981-05-15

1984-07-31

Howell, Kyle L.

Surgery

Truss

Pad

128748, 73706, A61B 502

Patent

active

044624093

ABSTRACT:
A pressure transducer for use in a direct blood pressure measuring system includes a domed portion which is connected to a line interposed in a patient's blood supply system. A sterile solution serves to interface the patient's blood system and the pressuring measuring apparatus. An asymmetrical configuration of the interior cavity in the domed portion of the transducer, which cavity is in the fluid flow path, as well as a convex surface formed on the top face of the cavity improve the reliability of the transducer by avoiding standing waves and bubbles in the fluid in the cavity. Flow lines intersecting the cavity are tapered to improve impedance matching with the cavity.

REFERENCES:
patent: 3631850 (1972-01-01), Levasseur
patent: 3818765 (1974-06-01), Ericksen
patent: 3865100 (1975-02-01), Kanai et al.
patent: 3880151 (1975-04-01), Nilsson et al.
patent: 4072056 (1978-02-01), Lee
patent: 4291701 (1981-09-01), Bowman
patent: 4365635 (1982-12-01), Bowman

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