A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 1/10 (2006.01) F04B 43/08 (2006.01)
Patent
CA 2185204
An extra-corporal blood pump comprises a support means equipped with a pumping means and a driving means. Said pumping means comprises an inlet head, an outlet head and a pump chamber arranged between and connecting said inlet head with said outlet head, wherein: - said inlet head is stationarily arranged at said support means and comprises an inlet connector, an inlet bore having an internal diameter, and an inlet valve means; - said outlet head is movably arranged to be displaced by said driving means and comprises an outlet connector, an outlet bore having an internal diameter and an outlet valve means; - said pump chamber comprises a piece of a hose having a given original length and made of a rubber-elastic material and defining an interior volume of said pump chamber, wherein said piece of hose comprises an inlet end tightly connected with said inlet head, and further comprises a distantly arranged outlet end tightly con- nected with said outlet head; and - said driving means periodically moving forward said outlet head essentially in a length direction of said hose piece thus streching the hose piece in order to increase per stroke the original hose piece length by at least 100 % and by not more than about 500 % of the original hose piece length without substantially narrowing the interior volume of the pump chamber, thus providing an enforced blood flow from the inlet bore through the pump chamber to the outlet bore.
Deco Delta Gmbh
Smart & Biggar
LandOfFree
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