Air cylinder device and air path system for non-contact tonometer

A technology of a cylinder device and a gas circuit system, which is applied in the direction of tonometer, etc., can solve the problem that the position of the piston is not easy to determine.

Active Publication Date: 2022-01-11
湖南卡睿知医疗科技有限公司 +2
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the present invention solves the defect that the piston position in the non-contact tonometer is not easy to determine in the prior art, thereby providing a cylinder device and an air circuit system for the non-contact tonometer

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Air cylinder device and air path system for non-contact tonometer
  • Air cylinder device and air path system for non-contact tonometer
  • Air cylinder device and air path system for non-contact tonometer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] refer to Figure 1-4 , a cylinder device for a non-contact tonometer provided by the present invention, comprising a cylinder 1 with a chamber and a reciprocating piston in the chamber, the cylinder 1 is located at the end of the piston's movement stroke A first through hole 2 connecting the chamber and the outside air is opened; the sealing device is arranged on the cylinder 1 and is suitable for closing or opening the first through hole 2 .

[0039] Through the above settings, when the cylinder 1 performs the air injection action, the piston starts to start, and at the same time the first through hole 2 on the cylinder 1 is in a closed state. After the piston reaches the preset position, the sealing device opens the first through hole 2 at this time, because the piston Excessive gas caused by inertia is discharged through the first through hole 2; when the piston returns to the initial position, the first through hole 2 is always open, so that the outside air will be ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to the technical field of non-contact tonometer, in particular to an air cylinder device and an air path system for a non-contact tonometer, the air cylinder device comprises an air cylinder with a cavity and a piston capable of reciprocating in the cavity, and a first through hole communicated with the cavity and external air is formed in the tail end, located at the movement stroke of the piston, of the air cylinder; and a sealing device is arranged on the air cylinder and is suitable for closing or opening the first through hole. The defect that in the prior art, the position of a piston in a non-contact tonometer is not easy to determine can be overcome.

Description

technical field [0001] The invention relates to the technical field of non-contact tonometers, in particular to a cylinder device and an air circuit system for non-contact tonometers. Background technique [0002] Tonometers are now widely used in the measurement of intraocular pressure in the human eye. Through the measurement of intraocular pressure, it can provide a reference for the diagnosis and treatment of glaucoma and related ophthalmic diseases. The tonometer is made according to the Imbert-Fick principle. The principle is to obtain the intraocular pressure by calculating the pressure exerted on the cornea divided by the contact area. The non-contact tonometer uses air pressure to flatten a certain area of ​​the cornea in a non-contact manner, and calculates the intraocular pressure by recording the change of the photoelectric signal during the corneal flattening process. The non-contact tonometer avoids contact between external pressure objects and the cornea, im...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A61B3/16
CPCA61B3/165
Inventor 解洪升夏明亮唐海军
Owner 湖南卡睿知医疗科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap