Equipment for measuring intra-ocular pressure and method for measuring intra-ocular pressure using same

Abstract

The invention relates to equipment for measuring intra-ocular pressure, which is mainly characterized by comprising a probe supported in a probe shoulder, a plurality of coils wound on a framework, and a circuit board for collecting and processing voltage signals of the coils. The probe consists of a plastic probe head and a magnetic probe tail, and the probe tail consists of one or several joints of magnetic needles. The equipment for measuring the intra-ocular pressure is mainly characterized in that the coils are electrified with different directions to drive the magnetic needles at the probe tail to ensure part of the probe head to move toward or far away from a cornea at a high speed, and the intra-ocular pressure is figured out by the time interval between the probe closing to the cornea and the probe just leaving the cornea. By adopting the technical scheme of the invention, the speed-up time of the probe is shortened, the retention time of high speed motion is long, and the system efficiency is high, thereby fully ensuring that the probe can hit against the surface of the cornea at a speed high enough, greatly reducing the complexity and cost of the system, and simultaneously improving the reliability of the system.

Description

technical field [0001] The present invention relates to a device for measuring intraocular pressure and a method for measuring intraocular pressure with the device. Background technique [0002] Intraocular pressure is formed by the pressure exerted by the contents of the eyeball (aqueous humor, crystal, vitreous body, etc.) necessary diagnostic tool. [0003] At present, the commonly used equipment for detecting intraocular pressure is divided into two types in principle: one is indentation type, such as The principle of the tonometer is to use an indenter with a certain force to press the front surface of the cornea to measure the indentation depth of the cornea to indirectly determine the intraocular pressure; the other is the applanation type, and its principle is to measure the specific corneal surface area, including Goldmann tonometers as well as non-contact pneumatic tonometers. [0004] The above-mentioned method for measuring intraocular pressure has a complica...

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Problems solved by technology

[0006] The problem with its technical solution is that the acceleration time of the probe movement speed is too long, the distance between the rear part of the probe and the transmitting coil affects the probe speed, and the probe cannot guarantee a long enough high-speed uniform motion. In order to ensure a long enough high-speed uniform motion Time must reduce efficiency to increase driving force, cannot sufficiently guarantee high enough velocity to hit corneal surface

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