Implantable artificial ventricular assist device
First Claim
1. A ventricular assist undulation pump comprising:
- a toroidal-shaped pump chamber with two angled side walls, an arc-shaped outer wall, an inlet port, an outlet port, and an inner circumferential opening;
an undulation disk with a diameter that extends to about the arc-shaped outer wall of the pump chamber disposed within the pump chamber; and
a circumferential, flexible inner wall membrane covering the inner circumferential opening and at least one surface of the undulation disk and forming liquid-tight seals to the pump chamber.
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Abstract
The present invention provides an implantable, artificial ventricular assist device and system employing an undulation pump and methods for the use thereof. The undulation pump has a toroidal-shaped pump chamber with two angled side walls, an arc-shaped outer wall, an inlet port, an outlet port, and an inner circumferential opening and an undulation disk with a diameter that extends to about the arc-shaped outer wall of the pump chamber. The device includes a circumferential, flexible inner wall membrane covering the inner circumferential opening and least one surface of the undulation disk and forming liquid-tight seals to the pump chamber, or alternatively a precession assembly with inner bearings connected in series with an anti-rotation assembly, the anti-rotation assembly disposed within the pump and connected to the undulation disk, and preferably both, and a motor in connected communication with the precession assembly so that the disk undulates when motive force is applied.
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Citations
41 Claims
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1. A ventricular assist undulation pump comprising:
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a toroidal-shaped pump chamber with two angled side walls, an arc-shaped outer wall, an inlet port, an outlet port, and an inner circumferential opening;
an undulation disk with a diameter that extends to about the arc-shaped outer wall of the pump chamber disposed within the pump chamber; and
a circumferential, flexible inner wall membrane covering the inner circumferential opening and at least one surface of the undulation disk and forming liquid-tight seals to the pump chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A ventricular assist undulation pump comprising:
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a toroidal-shaped pump chamber with two angled side walls, an arc-shaped outer wall, an inlet port, an outlet port, and an open circumferential inner wall;
an undulation disk with a diameter that extends to about the arc-shaped outer wall of the pump chamber disposed within the pump chamber;
a circumferential, flexible inner wall membrane covering the inner circumferential opening and forming liquid-tight seals to the undulation disk and the pump chamber;
a precession assembly with inner bearings connected in series with an anti-rotation assembly, the anti-rotation assembly disposed within the pump and connected to the undulation disk; and
a motor in connected communication with the precession assembly so that the disk undulates when motive force is applied. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A ventricular assist device comprising:
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a surgically implantable undulation pump with an inlet port and an outlet port; and
an implantable control unit comprising a motor drive circuit, and internal battery, a battery charge control system and an information transfer system. - View Dependent Claims (33, 34, 35)
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36. A method for assisting the ventricular circulation of blood in a patient, comprising:
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providing a surgically implantable undulation pump with an inlet port and an outlet port; and
implanting the undulation pump in the patient, with a ventricle of the patient'"'"'s heart in fluidic contact with the inlet port of the undulation pump and an artery of the patient in fluidic contact with the outlet port. - View Dependent Claims (37, 38, 39, 40, 41)
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Specification