Medical microscope

Abstract

The invention provides a medical microscope, comprising a microscope body; a pair of right-angle prism tables which are symmetrically arranged; a pair of oculars, wherein, the distance between the axis lines of the oculars is pupil distance; a pair of driving rods, wherein, the internal end parts of the driving rods are fixedly connected with the internal end parts of the right-angle prism tables at the same side respectively; an adjusting knob which is rotatablely arranged around the first rotating shaft and provided with a guiding surface vertical to the first rotating shaft; a pair of guiding troughs which take the intersection point of the first rotating shaft and the guiding surface as a symmetric center and is opened on the guiding surface in a central symmetry way. The external end parts of the driving rods are embedded inside the guiding troughs and can slide along the guiding troughs. When the external end parts of the pair of driving rods are respectively arranged at the internal end parts of the pair of guiding troughs, the pupil distance is not less than 78mm; when the external end parts of the pair of driving rods are respectively arranged at the external end parts of the pair of guiding troughs, the pupil distance is not more than 48mm. the pupil distance adjusting operation of the medical microscope is simple and precise, the processing cost is low and the sterilization is convenient.

Description

Technical field [0001] The invention relates to a medical microscope. Background technique [0002] Medical microscopes are widely used in many medical fields such as ophthalmology, ENT, stomatology, neurosurgery, hand surgery, and gynecology. The eyepiece is an essential part of a medical microscope. Because the binocular interpupillary distance of the human eye varies from person to person, generally between 48mm and 78mm, it is necessary to set up an interpupillary distance adjustment mechanism that can be continuously changed between 48mm and 78mm to facilitate doctors with different interpupillary distances to use the medical microscope . [0003] Attached figure 1 It is a schematic diagram of the structure of the interpupillary distance adjustment mechanism in the prior art. The adjustment mechanism needs to directly pull the right-angle prism holder (1) with both hands. Since the gear (2) is fixed with the right-angle prism holder (1), the linkage of the pair of gears (2...

AI Technical Summary

Problems solved by technology

Although the interpupillary distance adjustment mechanism with the above structure has a simple adjustment principle, uncomplicated operation, and convenient disinfection, it requires two-handed operation when in use, and the processing of gears, threads and other parts is more complicated and the cost is higher during manufacture.

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