Active Drainage Systems With Pressure-Driven Valves and Electronically-Driven Pump
First Claim
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1. An IOP control system for implantation in an eye of a patient, comprising:
- a drainage tube configured to convey aqueous humor from an anterior chamber of the eye; and
a pressure-driven valve system in fluid communication with the drainage tube, the valve system actuatable in response to pressure differentials and configured to control flow rates of the aqueous humor, the valve system including a first pressure-driven valve and a second valve,wherein the pressure-driven valve system is configured to control flow rates of the aqueous humor along the drainage tube by shifting in response to pressure differentials between the anterior chamber of the eye, the drainage site, and the atmospheric pressure acting on the pressure-driven valves.
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Abstract
An IOP control system for implantation in an eye of a patient is disclosed. The IOP control system includes a drainage tube configured to convey aqueous humor from an anterior chamber of an eye and includes a pressure-driven valve system in fluid communication with the drainage tube and configured to control flow rates of the aqueous humor. The valve system includes a plurality of pressure-driven valves arranged to operate in cooperation with each other. The IOP control system may include an electronic pump system to further regulate flow.
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Citations
35 Claims
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1. An IOP control system for implantation in an eye of a patient, comprising:
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a drainage tube configured to convey aqueous humor from an anterior chamber of the eye; and a pressure-driven valve system in fluid communication with the drainage tube, the valve system actuatable in response to pressure differentials and configured to control flow rates of the aqueous humor, the valve system including a first pressure-driven valve and a second valve, wherein the pressure-driven valve system is configured to control flow rates of the aqueous humor along the drainage tube by shifting in response to pressure differentials between the anterior chamber of the eye, the drainage site, and the atmospheric pressure acting on the pressure-driven valves. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An IOP control system for implantation in an eye of a patient, comprising:
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a drainage tube configured to convey aqueous humor from an anterior chamber of the eye; a pressure-driven valve system in fluid communication with the drainage tube, the valve system actuatable in response to pressure differentials acting on the pressure-driven valves and configured to control flow rates of the aqueous humor; and an electrically-driven pump system in fluid communication with the drainage tube and the pressure-driven valve system, the electrically-driven pump system being arranged to selectively control aqueous humor flow rates through the drainage tube and influence the pressure differentials affecting the valve system. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. An IOP control system for implantation in an eye of a patient, comprising:
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a drainage tube configured to convey aqueous humor from an anterior chamber of the eye; a pressure-driven valve system in fluid communication with the drainage tube, the valve system including a first pressure-driven valve and a second pressure-driven valve arranged in series to operate independently of each other, the pressure driven valves each including a flow control member configured to control flow rates of the aqueous humor along the drainage tube by shifting in response to pressure differentials between the anterior chamber of the eye, the drainage site, and the atmospheric pressure; and an electrically-driven pump system in fluid communication with the drainage tube and the pressure-driven valve system, the electrically-driven pump system configured to selectively control aqueous humor flow rates through the drainage tube and influence the pressure differentials affecting the valve system. - View Dependent Claims (32, 33, 34, 35)
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Specification