Blood clarification apparatus

Details Blood clarification apparatus Blood clarification apparatus

1993-11-05

1994-12-06

Cohen, Lee S.

Surgery

Truss

Pad

604 4, A61B 500

Patent

active

053701232

ABSTRACT:
A blood clarification device wherein a means for measuring blood pressure comprises (a) a needle-detector which is much thinner than the puncture needle and capable of being smoothly inserted into a blood vessel from outside through an inner aperture of the puncture needle, (b) an insertion aperture, for allowing fluid-tight insertion of the needle-detector, positioned on a wall of the blood supply passage in the vicinity of the puncture needle, and (c) a pressure transducer for detecting the blood pressure inside the blood vessel transmitted thereto via the needle-detector. In a blood clarification apparatus of the present invention, blood pressure inside a blood vessel is transmitted to a pressure transducer via a needle-detector during dialysis/filtration operation and blood pressure of a patient is detected continuously and automatically by the pressure transducer. A counterplan such as control of water-removing-rate or supplying-supplementary-fluid-rate based on the detected blood pressure is automatically carried out, so that safety of dialysis/filtration operation can be effectively improved.

REFERENCES:
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patent: 4466804 (1984-08-01), Hino
patent: 4501583 (1985-02-01), Troutner
patent: 4648406 (1987-03-01), Miller
patent: 4718890 (1988-01-01), Peabody
patent: 4718891 (1988-01-01), Lipps
patent: 4813423 (1989-03-01), Miyasaka et al.
patent: 4846191 (1989-07-01), Brockway et al.
patent: 4928693 (1990-05-01), Goodin et al.
patent: 4944724 (1990-07-01), Goldberg
Patent Abstracts of Japan, vol. 13, No. 95, Mar. 6, 1989.

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