System and method for diagphragm pumping using heating element
First Claim
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1. A system for treating an ocular condition comprising:
- a housing configured for ocular implantation;
a heating chamber comprising a material expandable when heated;
a flow passage having an inlet and an outlet;
a heating element arranged and disposed to introduce heat in the heating chamber; and
a flexible diaphragm separating the heating chamber from the flow passage, the flexible diaphragm being moveable between a first position and a second position to change a volume of one of the heating chamber and flow passages in response to a temperature change in the heating chamber.
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Abstract
Systems and methods for treating an ocular condition includes a heating chamber comprising a material expandable when heated and comprising a flow passage having an inlet and an outlet. A heating element is arranged and disposed to introduce heat in the heating chamber. A flexible diaphragm separates the heating chamber from the flow passage, and is moveable between a first position and a second position to change a volume of one of the pump chamber and flow passages in response to a temperature change in the heating chamber.
102 Citations
20 Claims
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1. A system for treating an ocular condition comprising:
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a housing configured for ocular implantation; a heating chamber comprising a material expandable when heated; a flow passage having an inlet and an outlet; a heating element arranged and disposed to introduce heat in the heating chamber; and a flexible diaphragm separating the heating chamber from the flow passage, the flexible diaphragm being moveable between a first position and a second position to change a volume of one of the heating chamber and flow passages in response to a temperature change in the heating chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system implantable in an eye for treating an ocular condition comprising:
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a housing configured for implantation in an eye of a patient, comprising; a sealed heating chamber; a fluid flow passage having an inlet and an outlet; a flexible diaphragm carried by the housing and disposed between and separating the heating chamber from the fluid flow passage; a heating element arranged and disposed to induce heat in the heating chamber to change pressure in the chamber; and a power source in electrical communication with the heating element and configured to induce electrical current in the heating element. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method for treating an ocular condition comprising:
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implanting a flow control device in an ocular cavity; inducing flow of a liquid through a flow pump having a flexible diaphragm separating a flow passage from a heating chamber; moving the flexible diaphragm from a first position to a second position by increasing a temperature of a fluid in the heating chamber; forcing fluid from the flow passage as the flexible diaphragm moves the first position to the second position; and drawing fluid into the flow passage by moving the flexible diaphragm from the second position to the first position. - View Dependent Claims (18, 19, 20)
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Specification