Intraocular pressure sensor with external pressure compensation
First Claim
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1. An intraocular pressure sensor system comprising:
- a first pressure sensor located in an anterior chamber of an eye;
a remote pressure sensor located remotely from the first pressure sensor and under a conjunctiva of the eye such that the remote pressure sensor measures or approximates atmospheric pressure;
wherein the first pressure sensor and the remote pressure sensor are located in a unitary implant and a difference between a first pressure reading from the first pressure sensor and a remote pressure reading from the remote pressure sensor approximates intraocular pressure;
a tube with a valve; and
a controller configured to control the valve based on the first pressure reading and the remote pressure reading.
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Abstract
An intraocular pressure sensor system has a first pressure sensor located in an anterior chamber of an eye and a remote pressure sensor located remotely from the first pressure sensor. The remote pressure sensor measures or approximates atmospheric pressure. A difference between readings from the first pressure sensor and the remote pressure sensor approximates intraocular pressure.
99 Citations
20 Claims
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1. An intraocular pressure sensor system comprising:
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a first pressure sensor located in an anterior chamber of an eye; a remote pressure sensor located remotely from the first pressure sensor and under a conjunctiva of the eye such that the remote pressure sensor measures or approximates atmospheric pressure; wherein the first pressure sensor and the remote pressure sensor are located in a unitary implant and a difference between a first pressure reading from the first pressure sensor and a remote pressure reading from the remote pressure sensor approximates intraocular pressure; a tube with a valve; and a controller configured to control the valve based on the first pressure reading and the remote pressure reading. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An intraocular pressure sensor system comprising:
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a first pressure sensor located in an anterior chamber of an eye; a second pressure sensor located in a drainage location within the eye; wherein the first pressure sensor and the second pressure sensor are located in a unitary implant and a difference between a first pressure reading readings from the first pressure sensor and a second pressure reading from the second pressure sensor approximates a pressure differential between the anterior chamber and the drainage location; a tube with a valve; and a controller configured to control the valve based on the first pressure reading and the second pressure reading. - View Dependent Claims (9, 10, 11, 12, 13)
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14. An intraocular pressure sensor system comprising:
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a first pressure sensor located in a drainage location within an eye; a remote pressure sensor located remotely from the first pressure sensor and under a conjunctiva of the eye such that the remote pressure sensor measures or approximates atmospheric pressure; wherein the first pressure sensor and the remote pressure sensor are located in a unitary implant and a difference between a first pressure reading from the first pressure sensor and a remote pressure reading from approximates pressure in the drainage location; a tube with a valve; and a controller configured to control the valve based on the first pressure reading and the second pressure reading. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification