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US 11,918,798 B2Granted
Next generation total artificial heart
AssigneeSyncardia Systems, LLC
InventorMatthew Scott Schuster
Life of this patent
Estimating the term…
Abstract
A total artificial heart system includes: at least one artificial ventricle coupled to (or capable of being coupled to) a chamber or a vessel of a human heart, and at least one drive system coupled to the artificial ventricle, the drive system including at least one implanted electric motor. The drive system causes the artificial ventricle to contract and expand.
Claims18
A total artificial heart system comprising:
- at least one artificial ventricle configured to be coupled to at least one of a pulmonary artery, a blood vessel of a heart, and a chamber of a heart;
- at least one drive system coupled to the at least one artificial ventricle and configured to cause a volume of the at least one artificial ventricle to contract and expand,
- wherein the at least one drive system includes at least one electric motor comprising:
- at least one stator assembly;
- at least one rotorcam coupled to the at least one stator assembly;
- at least one cam follower coupled to the at least one rotorcam;
- wherein at least one artificial ventricle is coupled to the at least one cam follower,
- wherein a change in height of the at least one cam follower causes an expansion of the volume of the at least one artificial ventricle, and
- wherein a magnitude of said expansion is inversely proportional to a rotational speed of the at least one rotorcam;
- and
- at least one power supply electrically coupled to the at least one electric motor, wherein the at least one artificial ventricle and the at least one drive system are configured to be implanted in a chest cavity of a patient.
8 more elements
A method for calibrating a total artificial heart system, the method comprising:
- setting a first initial location of a first Hall sensor within an electric motor of a drive system that is configured to drive the total artificial heart;
- setting a second initial location of a second Hall sensor within the electric motor of said drive system that is configured to drive the total artificial heart system;
- establishing an initial offset between the first and second initial locations of the first and second Hall sensors;
- initiating operation of the electric motor;
- monitoring locations of the first and second Hall sensors;
- identifying when an offset between said locations has altered from the initial offset;
- and
- at least one of increasing and decreasing an electrical current to the electric motor in order to adjust a value of the offset to a desired value.
5 more elements
A total artificial heart system comprising:
- at least one artificial ventricle configured to be coupled to at least one of a pulmonary artery, a vessel of a heart, and a chamber of a heart;
- at least one drive system coupled to the at least one artificial ventricle and configured to cause a volume of the at least one artificial ventricle to contract and expand, the at least one drive system comprising at least one electric motor;
- and
- at least one power supply electrically coupled to the at least one electric motor;
- wherein the at least one artificial ventricle and the at least one drive system are configured to be implanted in a chest cavity of a patient,
- wherein the at least one electric motor includes:
- a stator assembly comprising (i) a circular base, (ii) at least one housing longitudinally extending from the circular base, and (iii) a plurality of winding groups disposed radially inward of and/or radially outward of the at least one housing;
- and
- at least one rotor disposed radially outward of the at least one housing, and
- wherein at least one of the following conditions is satisfied:
- (16A) wherein the at least one housing includes a hexagonal housing disposed radially inward of the plurality of winding groups and further comprises a cylindrical housing disposed radially outward of the plurality of winding groups;
- (16B) wherein the at least one rotor comprises a cam;
- (16C) wherein the at least one power supply is electrically coupled to the circular base, and wherein the at least one mobile power supply comprises an integral control interface operatively coupled to the at least one stator assembly,
- wherein the at least one mobile power supply comprises at least one battery disposed within the circular base,
- wherein the circular base comprises a cylindrical shape, wherein the integral control interface is configured to control a rotational speed of the at least one rotor and is configured to selectively control the rotational speed of the at least one rotor within each rotation of the at least one rotor, wherein the integral control interface is configured to selectively adjust the rotational speed of the at least one rotor within each rotation of the at least one rotor based on a circumferential orientation of the at least one rotor;
- wherein the integral control interface is configured to selectively adjust the rotational speed of the at least one rotor from the first rotational speed at a first range of circumferential orientations of the at least one rotor to a second rotational speed at a second range of circumferential orientations of the at least one rotor;
- and
- wherein the integral control interface is configured to selectively adjust the rotational speed of the at least one rotor from the first rotational speed corresponding to a first range of rotor angles to the second rotational speed corresponding to a second range of rotor angles.
15 more elements
Dependencies are inferred from the claim text.