Valve system
First Claim
1. A valve system to control fluid flow through a fluid pathway in a disposable manifold, wherein the disposable manifold is configured to be inserted into a kidney dialysis system, the valve system having a first stable state and a second stable state and comprising:
- a valve seat positioned in the disposable manifold, wherein the disposable manifold comprises blood flow paths and dialysate flow paths;
a orifice closing member positioned in the disposable manifold opposite the valve seat, wherein the valve seat and orifice closing member define an orifice;
a displacement member positioned in the kidney dialysis system and external to the disposable manifold; and
a first magnet and a second magnet proximate the displacement member and positioned in the kidney dialysis system and external to the disposable manifold;
wherein an input of energy modulates magnetic fields of the first magnet and the second magnet, which causes the displacement member to move in a direction towards the valve seat in the disposable manifold to effectuate the first state and in a direction away from the valve seat in the disposable manifold to effectuate the second state, and wherein maintenance of the first or the second state does not require energy input.
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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.
642 Citations
18 Claims
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1. A valve system to control fluid flow through a fluid pathway in a disposable manifold, wherein the disposable manifold is configured to be inserted into a kidney dialysis system, the valve system having a first stable state and a second stable state and comprising:
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a valve seat positioned in the disposable manifold, wherein the disposable manifold comprises blood flow paths and dialysate flow paths; a orifice closing member positioned in the disposable manifold opposite the valve seat, wherein the valve seat and orifice closing member define an orifice; a displacement member positioned in the kidney dialysis system and external to the disposable manifold; and a first magnet and a second magnet proximate the displacement member and positioned in the kidney dialysis system and external to the disposable manifold; wherein an input of energy modulates magnetic fields of the first magnet and the second magnet, which causes the displacement member to move in a direction towards the valve seat in the disposable manifold to effectuate the first state and in a direction away from the valve seat in the disposable manifold to effectuate the second state, and wherein maintenance of the first or the 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 having a disposable manifold removably inserted therein, wherein the disposable manifold comprises an orifice positioned within a fluid pathway, wherein the disposable manifold comprises blood flow paths and dialysate flow paths and wherein the orifice is defined by a valve seat on one side and a compressible material on an opposing side, the kidney dialysis system further comprising:
a moveable displacement member positioned in the kidney dialysis system and outside the disposable manifold and configured to move in a direction towards the disposable manifold in a first state and in a direction away from the disposable manifold in a second state, wherein the movement of the displacement member is effectuated by a first magnet and a second magnet, wherein the first magnet and the second magnet generate a magnetic field, wherein an input of energy modulates the magnetic field, and wherein maintenance of the first state or the second state does not require energy input. - View Dependent Claims (13, 14, 15, 16, 17, 18)
Specification