Novel head fixing device for ophthalmic examination

Abstract

The invention relates to the technical field of ophthalmic examination, and discloses a novel head fixing device for ophthalmic examination, which comprises a base and a pressed assembly; a connecting plate is fixedly installed at the top end of the base; when the novel head fixing device for ophthalmic examination is used, a jaw can be placed on a pressed plate; under the pressure effect, the pressed plate moves downwards; a connecting rod is driven to move; a movable disc and a connecting column also move along with the connecting rod; furthermore, a fixed head is driven to move; a movable block and a movable head also start to move under the action of the fixed head; an elastic iron sheet close to one side of the pressed plate is bent, so that two extrusion plates are close to the opposite side under the action of the movable block and the movable head; the two sides of the face of a user are supported; a supporting rod and a fixing block also start to move; an elastic belt is stretched; under the action of the fixing block, a pressing plate starts to move downwards; the head top of the user is limited; and then, the effect of assisting in limiting the head and preventing the head from deviating is achieved.

Description

technical field [0001] The invention relates to the technical field of ophthalmic examination, in particular to a novel head fixation device for ophthalmic examination. Background technique [0002] Ophthalmological examination is a general examination of the eye, including the examination of the ocular adnexa and anterior segment. The examination of the ocular adnexa includes the examination of the eyelids, conjunctiva, lacrimal apparatus, eyeball position and orbit. Ophthalmological examination can evaluate the function of the eye. Commonly used visual function examinations include Visual psychophysical examination and visual electrophysiological examination, visual acuity, field of vision and other examinations require the examiner to use appropriate equipment for examination and the patient to make a judgment through psychological activities, so it is called visual psychophysical examination. In the process of ophthalmological examination, often Head immobilization devic...

AI Technical Summary

Problems solved by technology

[0003] During ophthalmic examination, it is generally necessary to simply fix the head of the person to be tested. However, during the operation, the head fixing device often lacks an auxiliary limit structure, so that the head of the person to be tested is prone to appear left and right and up and down. Due to the strict requirements for accuracy in ophthalmological examination, re-inspection is required when the head of the person to be inspected shakes, which greatly delays the inspection process

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