| 摘要 |
This invention relates to a fluid driven blood pumping apparatus for use as an artificial heart. This apparatus may be used as a temporary mechanical replacement or a permanent mechanical replacement for a malfunctioning heart. The apparatus of this invention comprises a 1st pumping chamber having expandable walls which has an inlet for receiving blood and an outlet for discharging blood, a 2nd pumping chamber positioned within the 1st pumping chamber having expandable walls and having an inlet for receiving blood and an outlet for discharging blood, an inflatable blood displacement member having expandable walls positioned within the 2nd pumping chamber for periodic inflation and deflation to discharge and receive blood in the 2nd pumping chamber for periodic expansion and contraction of the 2nd pumping chamber walls for discharging and receiving blood in the 1st pumping chamber and an expandable and contractable core member positioned within the inflatable blood displacement member for providing volume adjustments of the inflatable blood displacement member.
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