A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
128/81
A61M 5/00 (2006.01) A61M 1/10 (2006.01)
Patent
CA 1124152
ABSTRACT OF THE DISCLOSURE This invention relates to blood pumps for use, for example, in cardiopulmonary bypass procedures, left ventricle assist procedures and hemodialysis. In its most elementary form, the blood pump comprises an elongated driver balloon and a similar blood pumping balloon positioned side by side in a rigid housing preferably having a one-way air valve that permits only air flow out of the housing. Alternatively, the air valve may be replaced by an open vent. Sloping end portions of the balloons terminate in ports offset from the balloon axes and minimize folding and/or rubbing during use. The driver balloon is provided with one port for coupling to a pressure-vacuum source, and the blood pumping balloon is provided with an inlet port and an outlet port. Both balloons are of such a cross-sectional size and construction as to provide non-occlusive action by the blood pumping balloon. When the balloons are used to assist a conventional roller pump, one-way valves in or associated with the blood pumping balloon are not necessary. The one-way air valve in the housing permits the reduction of deflation time of the driver balloon when it is coupled to a vacuum source, facilitates counterpulsation, prevents the introduction of gas into the blood stream in the event of a failure of the blood pumping balloon and prevents actuation of the blood pumping balloon in the event of failure of the driver balloon.
300334
Avco Corporation
Hewitt Neville S.
LandOfFree
Blood pump does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Blood pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blood pump will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-690264