CPC A61M 60/422 (2021.01) [A61M 60/13 (2021.01); A61M 60/139 (2021.01); A61M 60/148 (2021.01); A61M 60/216 (2021.01); A61M 60/221 (2021.01); A61M 60/569 (2021.01); A61M 60/585 (2021.01); A61M 60/808 (2021.01); A61M 60/82 (2021.01); A61M 60/824 (2021.01); A61M 60/857 (2021.01); A61M 60/88 (2021.01); A61M 60/419 (2021.01); A61M 2205/0266 (2013.01)] | 20 Claims |
1. A mechanical circulatory support device comprising:
a pump head comprising a pair of contra-rotating impellers positioned within a central waist section of an hourglass-shaped cage,
wherein an inlet of an inlet section of the hourglass-shaped cage and an outlet of an outlet section of the hourglass-shaped cage are configured to be expanded against an inside wall of blood vessels of various diameter sizes,
wherein the central waist section has a constant diameter when the inlet of the hourglass-shaped cage and the outlet of the hourglass-shaped cage are expanded against the inside wall,
wherein the central waist section of the hourglass-shaped cage comprises a biocompatible material non-permeable to blood.
|