Method for measuring intraocular pressure
First Claim
1. A method for measuring intraocular pressure with an apparatus comprising a probe supported and located in a suitable case, means for giving the probe a specific velocity, and means for processing and displaying measurement data and controlling operations, comprising:
- feeding a voltage/current pulse to the means for giving the probe a specific velocity, thereby providing the probe with a specific, relatively large initial acceleration;
observing a velocity of the probe using the means for giving the probe a specific velocity on the basis of data obtained from which, or alternatively after a constant time;
reducing a magnitude of the voltage/current pulse in order to reduce and stabilize the acceleration of the probe;
maintaining the voltage/current pulse until a moment of impact of the probe with an eye, or even after the moment of impact; and
observing the impact of the probe with the aid of the means for giving the probe a specific velocity in order to calculate and obtain measurement data.
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Accused Products
Abstract
A method for measuring intraocular pressure includes a probe supported and located in a suitable case, means for giving the probe a specific velocity, and means for processing and displaying the measurement data and controlling operations. According to the method, the probe is given a specific, relatively large initial acceleration, by feeding a voltage/current pulse to the means, particularly a coil, the velocity of the probe is detected using the second means, particularly a coil, on the basis of the data obtained from which, the magnitude of the voltage/current pulse is reduced, in order to reduce and stabilize the acceleration of the probe, the voltage/current pulse is maintained up until the moment of impact of the probe with the eye, or even after the moment of impact, and the impact of the probe is detected with the aid of the coil, in order to calculate and obtain the measurement result, and if desired, the probe is retracted to its departure position within the apparatus, by using the voltage fed to the coil.
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Citations
10 Claims
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1. A method for measuring intraocular pressure with an apparatus comprising a probe supported and located in a suitable case, means for giving the probe a specific velocity, and means for processing and displaying measurement data and controlling operations, comprising:
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feeding a voltage/current pulse to the means for giving the probe a specific velocity, thereby providing the probe with a specific, relatively large initial acceleration;
observing a velocity of the probe using the means for giving the probe a specific velocity on the basis of data obtained from which, or alternatively after a constant time;
reducing a magnitude of the voltage/current pulse in order to reduce and stabilize the acceleration of the probe;
maintaining the voltage/current pulse until a moment of impact of the probe with an eye, or even after the moment of impact; and
observing the impact of the probe with the aid of the means for giving the probe a specific velocity in order to calculate and obtain measurement data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification