US 12,065,941 B2
Rotor for a pump, produced with a first elastic material
Joerg Schumacher, Aachen (DE); and Mario Scheckel, Aachen (DE)
Assigned to ECP ENTWICKLUNGSGESELLSCHAFT MBH, Aachen (DE)
Filed by ECP Entwicklungsgesellschaft mbH, Aachen (DE)
Filed on May 22, 2023, as Appl. No. 18/199,984.
Application 18/199,984 is a continuation of application No. 17/696,977, filed on Mar. 17, 2022, granted, now 11,702,938.
Application 17/696,977 is a continuation of application No. 16/748,152, filed on Jan. 21, 2020, granted, now 11,313,228, issued on Apr. 26, 2022.
Application 16/748,152 is a continuation of application No. 15/671,326, filed on Aug. 8, 2017, granted, now 10,584,589, issued on Mar. 10, 2020.
Application 15/671,326 is a continuation of application No. 13/261,565, granted, now 9,771,801, issued on Sep. 26, 2017, previously published as PCT/EP2011/003440, filed on Jul. 1, 2011.
Claims priority of provisional application 61/364,578, filed on Jul. 15, 2010.
Claims priority of application No. 10075303 (EP), filed on Jul. 15, 2010.
Prior Publication US 2024/0003256 A1, Jan. 4, 2024
Int. Cl. F04D 29/18 (2006.01); A61M 60/122 (2021.01); A61M 60/13 (2021.01); A61M 60/135 (2021.01); A61M 60/20 (2021.01); A61M 60/205 (2021.01); A61M 60/226 (2021.01); A61M 60/237 (2021.01); A61M 60/411 (2021.01); A61M 60/808 (2021.01); F01D 5/02 (2006.01); F04D 29/38 (2006.01); A61M 60/148 (2021.01); A61M 60/414 (2021.01)
CPC F01D 5/02 (2013.01) [A61M 60/122 (2021.01); A61M 60/13 (2021.01); A61M 60/135 (2021.01); A61M 60/205 (2021.01); A61M 60/226 (2021.01); A61M 60/237 (2021.01); A61M 60/411 (2021.01); A61M 60/808 (2021.01); A61M 60/148 (2021.01); A61M 60/414 (2021.01)] 10 Claims
OG exemplary drawing
 
1. A blood pump comprising:
a helical rotor blade configured to be rotated to convey a fluid through the blood pump, the helical rotor blade having a compressed state, a deployed state, and an operational state, and wherein the helical rotor blade is radially expanded in the operational state; and
a housing surrounding the helical rotor blade, the housing including an expandable suction cage at a distal end of the housing and apertures at a proximal end of the housing, the apertures being proximal of the helical rotor blade,
wherein the helical rotor blade is configured to expand from the deployed state to the operational state when rotated, such that the helical rotor blade has its maximum diameter in the operational state and
wherein the helical rotor blade is configured to convey the fluid from the expandable suction cage through the housing and out the apertures.
 
2. A blood pump comprising:
a helical rotor blade configured to be rotated to convey a fluid through the blood pump, the helical rotor blade having a compressed state, a deployed state, and an operational state, and wherein the helical rotor blade is radially expanded in the operational state;
a housing surrounding the helical rotor blade, the housing including an expandable suction cage at a distal end of the housing and apertures at a proximal end of the housing, the apertures being proximal of the helical rotor blade; and
a rotor hub to which the helical rotor blade is coupled,
wherein the helical rotor blade is configured to expand from the deployed state to the operational state when rotated, such that the helical rotor blade has its maximum diameter in the operational state, and
wherein the helical rotor blade extends continuously at a blade root along the rotor hub.
 
3. A blood pump comprising:
a helical rotor blade configured to be rotated to convey a fluid through the blood pump, the helical rotor blade having a compressed state, a deployed state, and an operational state, and wherein the helical rotor blade is radially expanded in the operational state;
a housing surrounding the helical rotor blade, the housing including an expandable suction cage at a distal end of the housing and apertures at a proximal end of the housing, the apertures being proximal of the helical rotor blade; and
a rotor hub to which the helical rotor blade is coupled,
wherein the helical rotor blade is configured to expand from the deployed state to the operational state when rotated, such that the helical rotor blade has its maximum diameter in the operational state, and
wherein the helical rotor blade extends uninterruptedly over a length of the rotor hub.
 
4. A blood pump comprising:
a helical rotor blade configured to be rotated to convey a fluid through the blood pump, the helical rotor blade having a compressed state, a deployed state, and an operational state, and wherein the helical rotor blade is radially expanded in the operational state;
a housing surrounding the helical rotor blade, the housing including an expandable suction cage at a distal end of the housing and apertures at a proximal end of the housing, the apertures being proximal of the helical rotor blade; and
a rotor hub to which the helical rotor blade is coupled,
wherein the helical rotor blade is configured to expand from the deployed state to the operational state when rotated, such that the helical rotor blade has its maximum diameter in the operational state, and
wherein a plurality of helical rotor blades are spaced apart from each other and distributed axially over a length of the rotor hub.