US 12,138,438 B2
Removable mechanical circulatory support for short term use
Theodosios Alexander, Venice, FL (US); and Martin T. Rothman, Santa Rosa, CA (US)
Filed by Theodosios Alexander, Venice, FL (US); and Martin T. Rothman, Santa Rosa, CA (US)
Filed on Dec. 27, 2022, as Appl. No. 18/146,728.
Application 18/146,728 is a continuation of application No. 16/914,019, filed on Jun. 26, 2020, granted, now 11,679,250.
Claims priority of provisional application 62/991,410, filed on Mar. 18, 2020.
Claims priority of provisional application 62/868,265, filed on Jun. 28, 2019.
Prior Publication US 2023/0347135 A1, Nov. 2, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 60/804 (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 60/422 (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)
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
OG exemplary drawing
 
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.