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Intraocular pressure measuring device and intraocular pressure measuring method

A measuring device and technology of intraocular pressure, applied in the direction of tonometer, etc., can solve the problems of low measurement accuracy and complicated operation, and achieve the effect of improving measurement accuracy and simplifying the operation process of measuring intraocular pressure

Pending Publication Date: 2019-05-14
合肥中纳医学仪器有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide an intraocular pressure measuring device and a method for measuring intraocular pressure, which are used to solve the problems of low measurement accuracy and complicated operation of existing tonometers when measuring intraocular pressure

Method used

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  • Intraocular pressure measuring device and intraocular pressure measuring method
  • Intraocular pressure measuring device and intraocular pressure measuring method
  • Intraocular pressure measuring device and intraocular pressure measuring method

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Embodiment 1

[0036] This embodiment proposes an intraocular pressure measuring device, which is used to solve the problems of low measurement accuracy and complicated operation of existing tonometers when measuring intraocular pressure. Due to the pressure exerted by the contents and secretions of the eye on the wall of the eyeball and the surface tension of the cornea, the cornea is spherically filled and shows a convex surface. The inside of the cornea is under positive pressure relative to the surrounding atmosphere. Under normal circumstances, the range of human intraocular pressure is about 1.33-2.80kPa, that is, 13.56-28.55cmH 2 O, or 9.98-21.00mmHg.

[0037] refer to figure 1 , the measuring device includes a detection probe and a detection instrument.

[0038] The detection probe is used to detect the pressure inside the cornea. refer to figure 1 , the detection probe can be a light-weight cylindrical rigid body, and its shape can be similar to an ordinary writing pen. The de...

Embodiment 2

[0046] This embodiment provides an intraocular pressure measurement method, which is applied to the intraocular pressure measurement device described in Embodiment 1. refer to image 3 , the intraocular pressure measurement method comprises the following steps:

[0047] Touch the elastic sensory membrane 11 parallel to the center of the cornea of ​​the patient under test and apply pressure gradually until the elastic sensory membrane 11 is attached to the cornea;

[0048] Press the detection probe, so that the corneal surface of the patient under test is pressed by external force and embedded in the elastic sensing membrane 11, so that the elastic sensing membrane 11 is deformed and sunken into the groove 16, and the sensing signal output by the sensor 13 changes accordingly;

[0049] Stop pressing the detection probe when both sides of the contact interface between the curved surface of the cornea of ​​the patient under test and the elastic sensing membrane 11 achieve or ten...

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Abstract

The invention discloses an intraocular pressure measuring device and an intraocular pressure measuring method. The intraocular pressure measuring device includes a detecting probe and a detecting instrument. The detecting probe includes a front probe end, an elastic sensing membrane, a conductive medium and a sensor. A groove is formed in the end face of the front probe end; the elastic sensing membrane is fixed to the end face of the front probe end to seal the groove into an accommodating cavity; the conductive medium is fluid and is accommodated in the accommodating cavity; a sensing end ofthe sensor is inserted into the accommodating cavity and outputs a sensing signal; the sensing signal characterizes the pressure intensity of the sensor at a corresponding position in the accommodating cavity; the detecting instrument is used for converting the sensing signal into corresponding pressure intensity. By means of the intraocular pressure measuring device and the intraocular pressuremeasuring method, the measurement of the intraocular pressure is achieved through the indirect conduction of the elastic sensing membrane and the conductive medium. The conductive medium conducts thesensed external pressure intensity into the sensor and converts the sensed external pressure intensity into the sensing signal. The detecting instrument receives and analyzes the sensing signal. The intraocular pressure device can simplify the operation process of measuring the intraocular pressure.

Description

technical field [0001] The invention relates to the technical field of intraocular pressure measurement for medical clinical application, in particular to an intraocular pressure measurement device and an intraocular pressure measurement method. Background technique [0002] The tonometer is a diagnostic instrument commonly used in modern medical clinics. There are a variety of product applications with different structures. According to the currently recognized principles and methods, it can be roughly divided into two categories: [0003] The first type is the applanation method, which uses a cylindrical rigid body with a flat and standard end surface as the detection surface, and under the action of external force (or natural gravity), direct the detection surface to point vertically and press the surface of the central part of the cornea, so that the surface is compressed It is in a flat state, and then calculate the ratio of the applied external force intensity to the p...

Claims

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Application Information

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IPC IPC(8): A61B3/16
Inventor 吴艾久杨思静何兵兵石海春孔德润付忠谦
Owner 合肥中纳医学仪器有限公司
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