Tonometer-pachymeter apparatus for measurement of intraocular pressure
First Claim
1. An apparatus for determining intraocular pressure comprising:
- a transducer assembly containing an applanation tonometer for the determination of a cornea applanation pressure and an ultrasonic pachymeter to determine the thickness of the cornea at the site of applanation, the assembly having a tip end which includes an applanation surface and an ultrasonic coupler surface;
an end cap membrane holder adapted to fit over the tip end of the transducer assembly and hold a thin film membrane stretched over the applanation and ultrasonic coupler surfaces; and
a detector for detecting the presence or absence of the end cap membrane holder.
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Accused Products
Abstract
An apparatus for determining intraocular pressure includes a transducer assembly containing an applanation tonometer for the determination of a cornea applanation pressure and an ultrasonic pachymeter to determine the thickness of the cornea at the site of applanation. The assembly has a tip end which includes an applanation surface and an ultrasonic coupler surface, and an end cap membrane holder is adapted to fit over the tip end of the transducer assembly and hold a thin film membrane stretched over the applanation and ultrasonic coupler surfaces. The transducer assembly also has a detector for detecting the presence or absence of the end cap membrane holder, the detector may generate a signal to disable movement of the transducer assembly if the end cap is not detected.
34 Citations
12 Claims
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1. An apparatus for determining intraocular pressure comprising:
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a transducer assembly containing an applanation tonometer for the determination of a cornea applanation pressure and an ultrasonic pachymeter to determine the thickness of the cornea at the site of applanation, the assembly having a tip end which includes an applanation surface and an ultrasonic coupler surface;
an end cap membrane holder adapted to fit over the tip end of the transducer assembly and hold a thin film membrane stretched over the applanation and ultrasonic coupler surfaces; and
a detector for detecting the presence or absence of the end cap membrane holder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification