Ventricular assist device for intraventricular placement
First Claim
1. A blood pump for intraventricular placement inside a heart of a mammalian subject comprising:
- a rigid elongate member having a length extending along a member axis between proximal and distal ends and a bore extending along the length;
an anchor element connected towards the proximal end of the rigid elongate member and adapted to be mounted to the subject'"'"'s heart, the elongate member and anchor element pivotable relative to one another;
a pump comprising an inlet at a first end and an outlet at a second end, the inlet and outlet positioned on a pump axis, a rotor having a rotor axis coincident with the pump axis, and at least one electric drive coil, spaced laterally from the pump and rotor axes, for magnetically driving the rotor, the pump connected at or adjacent to the distal end of the rigid elongate member remote from the anchor element, the rotor and pump axes offset from the member axis; and
wiring extending through the bore to the pump,wherein the proximal end of the rigid elongate member is adapted to extend past the anchor element to a position outside of the subject'"'"'s heart.
1 Assignment
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Accused Products
Abstract
The present invention, in one embodiment, is a blood pump for intraventricular placement inside a heart of a mammalian subject including a rigid elongate member having a length between proximal and distal ends and a bore extending along the length, an anchor element connected towards the proximal end of the rigid elongate member and mounted to the subject'"'"'s heart, a pump having an inlet and an outlet, a rotor and at least one electric drive coil for magnetically driving the rotor, the pump connected at or adjacent to the distal end of the rigid elongate member remote from the anchor element and wiring extending through the bore to the pump, wherein the proximal end of the rigid elongate member extends past the anchor element to a position outside of the subject'"'"'s heart. Additional embodiments of a blood pump, and various methods of intraventricular placement inside a heart of a mammalian subject are also considered.
90 Citations
21 Claims
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1. A blood pump for intraventricular placement inside a heart of a mammalian subject comprising:
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a rigid elongate member having a length extending along a member axis between proximal and distal ends and a bore extending along the length; an anchor element connected towards the proximal end of the rigid elongate member and adapted to be mounted to the subject'"'"'s heart, the elongate member and anchor element pivotable relative to one another; a pump comprising an inlet at a first end and an outlet at a second end, the inlet and outlet positioned on a pump axis, a rotor having a rotor axis coincident with the pump axis, and at least one electric drive coil, spaced laterally from the pump and rotor axes, for magnetically driving the rotor, the pump connected at or adjacent to the distal end of the rigid elongate member remote from the anchor element, the rotor and pump axes offset from the member axis; and wiring extending through the bore to the pump, wherein the proximal end of the rigid elongate member is adapted to extend past the anchor element to a position outside of the subject'"'"'s heart. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A blood pump for intraventricular placement inside a heart of a mammalian subject comprising:
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a pump adapted to be positioned within the heart, the pump comprising an inlet and an outlet, the inlet and the outlet positioned on a pump axis, a rotor and at least one electric drive coil for magnetically driving the rotor; and wiring extending along a defined pathway from a location outside of the heart, through a wall of the heart and into a chamber of the heart, and to the at least one electric drive coil, the defined pathway offset from the pump axis and including a pivotable connection with the wall of the heart. - View Dependent Claims (11, 12, 13)
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14. A method for intraventricular placement inside a heart of a mammalian subject comprising:
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providing a pump having a housing defined between an inlet and an outlet, the inlet and outlet positioned on a pump axis; advancing the entirety of the pump housing through a wall of the subject'"'"'s heart and into a chamber of the subject'"'"'s heart; extending wiring along a defined pathway from a location outside of the subject'"'"'s heart, through the wall of the subject'"'"'s heart, and to the pump to power the pump, wherein the defined pathway is offset from the pump axis; mounting an anchor element to the wall of the subject'"'"'s heart; and after the advancing and extending steps, pivoting the defined pathway relative to the anchor element. - View Dependent Claims (15, 16, 17)
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18. A method for intraventricular placement inside a heart of a mammalian subject comprising:
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providing an anchor element and a pump connected to a rigid elongate member remote from one another, the pump having an inlet and an outlet positioned on a pump axis and an outflow cannula, and the rigid elongate member including a member axis and wiring extending through the rigid elongate member, the pump axis offset from the member axis; advancing the pump through a wall in an apex of the subject'"'"'s heart and into the left ventricle of the subject'"'"'s heart such that the outflow cannula extends from within the left ventricle through the aortic valve but terminates short of the arch of the aorta such that, other than the portion of the outflow cannula extending through the aortic valve, the pump is positioned entirely within the left ventricle; mounting the anchor element to the apex of the subject'"'"'s heart; and pivoting the elongated member relative to the anchor element to adjust the position of the pump within the left ventricle, wherein the wiring extends from a location outside of the subject'"'"'s heart, through the anchor element at the apex of the subject'"'"'s heart, and to the pump to power the pump. - View Dependent Claims (19, 20, 21)
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Specification