Pressure-sensing catheter system with compensation for atmospher

Details Pressure-sensing catheter system with compensation for atmospher Pressure-sensing catheter system with compensation for atmospher

1987-06-12

1989-03-07

Coven, Edward M.

Surgery

Truss

Pad

128674, 128780, A61B 510

Patent

active

048097098

ABSTRACT:
A catheter incorporates a pair of flexible conduits which are structurally united over a major portion of their length where bending is likely to occur during use so they both undergo the same deformations. Each conduit contains an aqueous column that terminates at a meniscus. The meniscus interfaces directly with a column of a different liquid which is insoluble in and immiscible with the liquid in the aqueous column. One of the conduits is a pressure responsive conduit and the other is a stagnant conduit.

REFERENCES:
patent: 3062202 (1962-11-01), Hyman et al.
patent: 3437088 (1969-04-01), Bielinski
patent: 3590809 (1971-07-01), London
patent: 3911902 (1975-10-01), Delpy
patent: 4168703 (1979-09-01), Kenigsberg
patent: 4282881 (1981-08-01), Todd et al.
patent: 4300572 (1981-11-01), Knighton
patent: 4601706 (1986-07-01), Aillon
patent: 4621646 (1986-11-01), Bryant
patent: 4672974 (1987-06-01), Lee

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