Intelligent flashlight convenient for pupil zooming-out and zooming-in examination of patient
Patent Information
- Authority / Receiving Office
- CN Β· China
- Current Assignee / Owner
- THE FIRST AFFILIATED HOSPITAL OF XIAMEN UNIV
- Publication Date
- 2021-08-24
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Abstract
Description
technical field
[0001] The invention belongs to the technical field of medical devices, and in particular relates to an intelligent flashlight which is convenient for patients' pupil constriction and enlargement inspection. Background technique
[0002] The pupil is the small round hole in the center of the iris in the animal or human eye, which is the channel for light to enter the eye. Contraction of the pupillary sphincter muscle on the iris causes the pupil to narrow, contraction of the pupillary dilator muscle causes the pupil to dilate, and the dilation and constriction of the pupil control the amount of light entering the pupil.
[0003] The smooth muscle arranged circularly along the pupil is called the pupillary sphincter, and the pupil narrows when the sphincter contracts; the smooth muscle arranged radially along the pupil is called the pupil dilator, and the pupil dilates when the enlarged muscle contracts; because the pupil can dilate or shrink, it can act To r...