Blood pressure measuring catheter

Details Blood pressure measuring catheter Blood pressure measuring catheter

1977-05-23

1979-07-10

Kamm, William E.

Surgery

Truss

Pad

A61B 502

Patent

active

041604482

ABSTRACT:
For determining blood pressure a cannula, insertable through a needle into the bloodstream, locates a flaccid, relaxed wall directly in the bloodstream. The relaxed nature of this wall allows direct transmission of the blood pressure to a neutral liquid in the cannula. The cannula transmits this liquid pressure out of the blood vessel to the remote pressure responsive indicator. Thus blood pressure can be directly measured without need of administering anticoagulants to maintain pressure-transmitting conditions.

REFERENCES:
patent: 3648687 (1972-03-01), Ramsey
patent: 3662743 (1972-05-01), Amarante et al.
patent: 3958562 (1976-05-01), Hakim et al.
patent: 4050449 (1977-09-01), Castellana et al.

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