Calibrated leak balloon micro-catheter

Details Calibrated leak balloon micro-catheter Calibrated leak balloon micro-catheter

1976-03-08

1977-06-14

Michell, Robert W.

Surgery

Truss

Pad

128246, 128349B, 128DIG16, 222494, 128 2A, A61M 2500

Patent

active

040291049

ABSTRACT:
This is an extremely small and flexible flow guided balloon catheter for use in small and tortuous blood vessels in body organs such as the brain or kidney, for diagnostic angiography. In order to attain such small size and extreme flexibility, a single lumen in the catheter tube serves the dual purpose of inflating the balloon and injecting a liquid into the blood vessel. This is accomplished by arranging the balloon to extend beyond the end of the catheter tube and providing a calibrated orifice in the distal end of the balloon to maintain inflation pressure in the balloon while the liquid is being discharged through the orifice.

REFERENCES:
patent: 397060 (1889-01-01), Knapp
patent: 2392085 (1946-01-01), Ferrel
patent: 3460975 (1969-08-01), Stebleton
patent: 3888249 (1975-06-01), Spencer
"Intra-Arterial Instrumentation for Neurosurgery" by Alfred Luessenhop, M.D., Dow Corning Bulletin vol. 2, No. 3 p. 9.

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