Valve system
First Claim
1. A kidney dialysis system comprising:
- a valve having a first state and a second state wherein;
the valve comprises a first magnet and a second magnet;
the valve comprises a displacement member positioned such that the first magnet and second magnet provide a bearing surface for movement of the displacement member;
the valve comprises elastic material positioned between a surface of the first magnet and the displacement member and positioned between a surface of the second magnet and the displacement member;
the valve is configured such that an input of energy into the valve modulates magnetic fields of the first magnet and the second magnet which cause the displacement member to move within the kidney dialysis system;
the movement of the displacement member causes a change between the first state and the second state; and
a maintenance of the first state or second state does not require energy input.
3 Assignments
0 Petitions
Accused Products
Abstract
The present specification is directed to a valve that has an orifice closing member adjacent to an orifice through which fluid can flow, a displacement member having a first portion and a second portion, where the first portion is adjacent to the orifice closing member when the valve is in an open position, a first magnet and a second magnet where the first and second magnets are sufficiently proximate to the displacement member to exert a magnetic force on the displacement member, and an actuator for generating a magnetic field to move the displacement member toward the first magnet, cause the first portion to press against the orifice closing member, and cause the orifice closing member to close the orifice.
666 Citations
18 Claims
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1. A kidney dialysis system comprising:
a valve having a first state and a second state wherein; the valve comprises a first magnet and a second magnet; the valve comprises a displacement member positioned such that the first magnet and second magnet provide a bearing surface for movement of the displacement member; the valve comprises elastic material positioned between a surface of the first magnet and the displacement member and positioned between a surface of the second magnet and the displacement member; the valve is configured such that an input of energy into the valve modulates magnetic fields of the first magnet and the second magnet which cause the displacement member to move within the kidney dialysis system; the movement of the displacement member causes a change between the first state and the second state; and a maintenance of the first state or second state does not require energy input. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A kidney dialysis system comprising:
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a disposable manifold having at least one orifice covered by a compressible material; and a moveable displacement member positioned outside the disposable manifold and configured to move between a first state and a second state; a first magnet and a second magnet positioned outside the disposable manifold and configured to provide a bearing surface for movement of the moveable displacement member; and elastic material positioned between a surface of the first magnet and the moveable displacement member and positioned between a surface of the second magnet and the moveable displacement member, wherein the first magnet and second magnet generate ft magnetic fields, wherein an input of energy modulates the magnetic fields, and wherein maintenance of the first or the second state does not require energy input. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification