Device for measuring pressure

Details Device for measuring pressure Device for measuring pressure

1974-04-01

1976-03-30

Howell, Kyle L.

Surgery

Truss

Perineal

73398R, 128 205D, A61B 502

Patent

active

039467244

ABSTRACT:
A device which will find particular use as a medical catheter for measuring the pressure and rate at which blood flows through the heart and the blood vessels.
An integrated circuit chip having at least one field effect transistor thereon, which is sensitive to deformation of the chip is mounted at one end inside the device. An elastic membrane typically made from natural rubber, is mounted in an opening in the side of the device. An unattached core or plunger is positioned between the membrane and the other end of the semiconductor chip, thus when pressure is applied to the membrane, it deforms the chip and provides an electric signal.

REFERENCES:
patent: 2420148 (1947-05-01), Ostergren
patent: 3088323 (1963-05-01), Welkowitz et al.
patent: 3138027 (1964-06-01), Li
patent: 3341794 (1967-09-01), Stedman
patent: 3553625 (1971-01-01), Stedman
patent: 3572322 (1971-03-01), Wade
patent: 3703099 (1972-11-01), Rouse
patent: 3710781 (1973-01-01), Hutchins et al.
patent: 3724274 (1973-04-01), Millar
patent: 3818765 (1974-06-01), Eriksen
patent: 3831588 (1974-08-01), Rindner

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