Intra-aortic balloon pump

Details Intra-aortic balloon pump Intra-aortic balloon pump

1988-03-18

1990-06-05

Hindenburg, Max

Surgery

Cardiac augmentation

Aortic balloon pumping

604 99, 604282, A61M 2902

Patent

active

049310364

ABSTRACT:
A retardation in the deflating motion of a balloon caused by a local collapse thereof is prevented. A tubular sleeve having a multiplicity of small apertures in the periphery therein is disposed for axial movement between the internal spaces of the balloon and a catheter. In use, the sleeve is inserted into the catheter to prevent a fluid channel from being blocked upon occurrence of a local collapse of the balloon. To facilitate positioning the sleeve, a projection is formed on an elongate stylet adjacent to its distal end to apply a braking action to the sleeve and secure it in place when the latter reaches a given position within the balloon.

REFERENCES:
patent: 3504662 (1970-04-01), Jones
patent: 4327709 (1982-05-01), Hanson et al.
patent: 4362150 (1982-12-01), Lombadi et al.
patent: 4515587 (1985-05-01), Schiff
patent: 4531512 (1985-07-01), Wolvek et al.
patent: 4535757 (1985-08-01), Webster
patent: 4546759 (1985-10-01), Solar

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