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1. (WO2017032510) BLOOD FLOW PUMP FOR VENTRICULAR ASSISTANCE

Pub. No.:    WO/2017/032510    International Application No.:    PCT/EP2016/067121
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Wed Jul 20 01:59:59 CEST 2016
IPC: A61M 1/10
A61M 1/12
Applicants: FINEHEART
Inventors: HADDADI, Mohammad
Title: BLOOD FLOW PUMP FOR VENTRICULAR ASSISTANCE
Abstract:
The invention relates to a pump intended to be immersed in a fluid, comprising: - an inductor (4) provided with guide vanes to make the flow of fluid linear; - a rotor (5, 16) comprising a central body with a flared shape, this rotor (5, 16) being disposed downstream of the inductor (4) with respect to the direction of circulation of the fluid; - at least one helical blade (18) provided around said central body; this helical blade (18) having a flared external profile and comprising turns with an increasing winding pitch that tends towards infinity, and the internal volume of the casing (6) being complementary to the flared shape of said at least one helical blade (18), - a casing (6) around the rotor (5, 16); - a diffuser (7, 22) provided with blades so as to make the flow of fluid linear and disposed downstream of the rotor (5, 16) so as to evacuate the fluid from the rotor (5, 16) towards the outside; and - a diffuser insert (8, 26) provided with blades and an outlet orifice with a diameter less than the inlet diameter of the diffuser insert (8, 26), the blades directing the fluid coming from the diffuser (7, 22) towards the orifice so as to increase the outlet pressure of the orifice.