Ophthalmic instrument for measuring intraocular fluid pressure
First Claim
1. An ophthalmic device for measuring relative pressure of fluid inside an ocular globe, the device being of the type adapted to cooperate with a fluid transfer means which is located external of the ocular globe and capable of supplying or removing intraocular fluid in response to predetermined signals, the device comprising:
- (a) an elongated surgical instrument adapted to penetrate the ocular globe;
(b) pressure sensitive means mounted on the instrument for moving in response to relative pressure changes in intraocular fluid;
(c) transducer means communicating with the pressure sensitive means for generating signals in response to movement of the pressure sensitive means;
(d) signal means for transmitting signals to the fluid transfer means; and
(e) first conduit means operatively connected between the fluid transfer means and the interior of the ocular globe so that fluid can be supplied to or removed from the ocular globe in response to said signals.
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Accused Products
Abstract
An ophthalmic device and system for measuring relative pressure of fluid inside an ocular globe includes an elongated surgical instrument which is adapted to penetrate the ocular globe. A fluid pressure transducer is mounted on the instrument in a position to communicate with fluid inside the ocular globe and generate signals in response to pressure changes in the fluid. The signal is transmitted external of the instrument to a pump or other fluid transfer device which is operatively connected to the transducer for receiving the signals and supplying or removing fluid from the ocular globe in response to predetermined signals. A conduit is operatively connected to the fluid transfer device and adapted to communicate with the interior of the ocular globe through which fluid can flow between the fluid transfer device and the ocular globe.
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Citations
18 Claims
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1. An ophthalmic device for measuring relative pressure of fluid inside an ocular globe, the device being of the type adapted to cooperate with a fluid transfer means which is located external of the ocular globe and capable of supplying or removing intraocular fluid in response to predetermined signals, the device comprising:
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(a) an elongated surgical instrument adapted to penetrate the ocular globe; (b) pressure sensitive means mounted on the instrument for moving in response to relative pressure changes in intraocular fluid; (c) transducer means communicating with the pressure sensitive means for generating signals in response to movement of the pressure sensitive means; (d) signal means for transmitting signals to the fluid transfer means; and (e) first conduit means operatively connected between the fluid transfer means and the interior of the ocular globe so that fluid can be supplied to or removed from the ocular globe in response to said signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for measuring fluid pressure inside an ocular globe and maintaining a predetermined fluid pressure therein, comprising:
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(a) an elongated surgical instrument adapted to penetrate the ocular globe; (b) fluid pressure transducer means mounted on the instrument on a position to communicate with fluid inside the ocular globe and generate signals in response to pressure changes in said fluid; (c) means for transmitting the signals external of the instrument; (d) fluid transfer means operatively connected to the transducer means for receiving said signals and supplying or removing fluid from the ocular globe in response to predetermined signals; and (e) a conduit operatively connected to the fluid transfer means and adapted to communicate with the interior of the ocular globe through which fluid can flow between the fluid transfer means and the ocular globe. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification