Glaucoma Drainage Devices Including Vario-Stable Valves and Associated Systems and Methods
First Claim
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1. A glaucoma drainage device comprising:
- a drainage lumen;
a valve system coupled to the drainage lumen, the valve system including;
an adjustable valve having;
a housing defining a cavity; and
a diaphragm bounding at least one side of the cavity, the diaphragm in communication with the drainage lumen, the diaphragm movable between a first position that occupies a first amount of the drainage lumen and a second position that occupies a second amount of the drainage lumen, the second amount being greater than the first amount; and
a fluid reservoir in fluid communication with the cavity of the adjustable valve;
a first check valve positioned between the fluid reservoir and the cavity of the adjustable valve along a first fluid passageway, the first check valve preventing fluid flow from the fluid reservoir to the cavity of the adjustable valve; and
a second check valve positioned between the fluid reservoir and the cavity of the adjustable valve along a second fluid passageway, the second check valve preventing fluid flow from the cavity of the adjustable valve to the fluid reservoir.
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Abstract
Glaucoma drainage devices including vario-stable valves and associated systems and methods are disclosed. A glaucoma drainage device includes a drainage lumen and a valve system coupled to the drainage lumen to control the flow of fluid through the drainage lumen. The valve system includes an adjustable valve with a diaphragm that is in communication with the drainage lumen and is movable to occupy varying amounts of the drainage lumen. In some embodiments, the valve system is maintained in a desired position without the use of power such that power is only needed when changing a position of the adjustable valve.
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Citations
32 Claims
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1. A glaucoma drainage device comprising:
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a drainage lumen; a valve system coupled to the drainage lumen, the valve system including; an adjustable valve having; a housing defining a cavity; and a diaphragm bounding at least one side of the cavity, the diaphragm in communication with the drainage lumen, the diaphragm movable between a first position that occupies a first amount of the drainage lumen and a second position that occupies a second amount of the drainage lumen, the second amount being greater than the first amount; and a fluid reservoir in fluid communication with the cavity of the adjustable valve; a first check valve positioned between the fluid reservoir and the cavity of the adjustable valve along a first fluid passageway, the first check valve preventing fluid flow from the fluid reservoir to the cavity of the adjustable valve; and a second check valve positioned between the fluid reservoir and the cavity of the adjustable valve along a second fluid passageway, the second check valve preventing fluid flow from the cavity of the adjustable valve to the fluid reservoir. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method of controlling intraocular pressure of an eye of a patient, the method comprising:
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obtaining pressure readings from a plurality of pressure sensors; determining a desired position of a diaphragm of an adjustable valve based on the obtained pressure readings; actuating an actuator to cause a flow of fluid between a cavity of the adjustable valve and a fluid reservoir to adjust the position of the diaphragm to the desired position; and ceasing actuation of the actuator, wherein the diaphragm is maintained in the desired position after actuation of the actuator has ceased. - View Dependent Claims (28, 29, 30, 31, 32)
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Specification