DEVICE FOR PUMPING BLOOD Russian patent published in 2007 - IPC A61M1/10 

FIELD: medical engineering.

SUBSTANCE: device has curvilinear end face blades convex in the direction opposite to wheel rotation, the blades being mounted between bushing, shaft, separating sealing member and posterior pump casing wall. Pointed end face blades inlet parts continuations beyond their external diameter makes an angle of 90° or less with working wheel rotation direction. End face blades side leading along the flow is slightly sloping and inclined with respect to working wheel rotation direction in greater extent than back side of the blades.

EFFECT: no dead zones available.

3 dwg