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US 12,109,367 B2Granted
Catheter pump with cannula and selectively positionable impeller blade
AssigneeTc1 LLC
InventorsAlexander King, David Panus, Tracee Eidenschink, John Pocrnich, Kevin Griffin
Life of this patent
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Abstract
A catheter pump includes a cannula having an inlet, an outlet, and a blood flow channel extending between the inlet and the outlet along a longitudinal axis. At least one impeller blade is operable to convey blood through the blood flow channel between the inlet to the outlet, wherein the at least one impeller blade is axially movable relative the cannula in a first direction toward the inlet and in a second direction away from the inlet.
Claims23
A catheter pump comprising:
- a cannula comprising an inlet, an outlet, and a blood flow channel extending between the inlet and the outlet along a longitudinal axis, wherein the blood flow channel has a constant diameter along the longitudinal axis and wherein at least the inlet has a variable diameter along the longitudinal axis;
- and
- at least one impeller blade being operable to convey blood through the blood flow channel between the inlet and the outlet;
- wherein the at least one impeller blade is axially movable relative to the cannula in a first direction toward the inlet and in a second direction away from the inlet.
1 more element
A catheter pump comprising:
- a cannula comprising an inlet having a varying internal diameter, an outlet having a varying internal diameter, and a blood flow channel having a uniform internal diameter extending between the inlet and the outlet;
- and
- at least one impeller blade operable to convey blood through the blood flow channel from the inlet to the outlet;
- wherein the at least one impeller blade is axially translatable relative to the cannula between respectively different first and second positions.
1 more element
A catheter pump comprising:
- an expandable cannula comprising a tapered inlet zone, a tapered outlet zone, and a blood flow channel extending between the tapered inlet zone and the tapered outlet zone;
- at least one impeller blade operable to convey blood from the inlet to the outlet, wherein the at least one impeller blade is axially movable relative to the expandable cannula along a longitudinal axis;
- and
- an actuator operable to adjust a relative axial spacing of the at least one impeller blade with respect to the inlet.
1 more element
Dependencies are inferred from the claim text.