Disposable rigid endoscope casing lens and lens alignment method

Abstract

The invention discloses a disposable hard endoscope sleeve lens and a lens alignment method. The lens comprises a rigid head and a flexible sleeve; a connecting end of the flexible sleeve is connected with the rigid head, and the other end of the flexible sleeve is an open free end; a 1:1 nonopaque lens group is arranged in the head to form a sealed front end; the connecting end of the flexible sleeve is provided with a first rigid ring, the free end of the flexible sleeve is provided with a second rigid ring, and first and second limiting devices are arranged on the first and second rigid rings; the flexible sleeve is sheathed on an outer surface of a hard endoscope; and the first and second rigid rings locate the lens group on a position overlapped with the main optical axis of the lens group of the hard endoscope by means of the first and second limiting devices. The method comprises the following steps: keeping the first rigid ring to be coaxial with the lens group through the rigid head; and keeping the first rigid ring to be coaxial with the second rigid ring through the first and second limiting devices. By adoption of the sleeve lens and the alignment method thereof provided by the invention, the sterilization and imaging problems of the existing endoscopes are solved.

Description

technical field [0001] The invention belongs to the field of medical equipment, and more specifically relates to a disposable hard endoscope sleeve lens and a lens alignment method. Background technique [0002] Rigid endoscopes have been widely used in clinical examinations, where the endoscope enters the patient's body. Existing medical endoscopes are reusable due to their high price. In order to avoid cross-infection between patients, each endoscope must undergo strict and complicated disinfection procedures after use, resulting in higher usage costs and depreciation costs. [0003] Therefore, the disposable endoscope sleeve was invented to solve the problem of cross-infection from the source and reduce the cost of use. However, due to the light transmittance of the device material, it is difficult to achieve clear imaging with the currently used cannula. Although there is a technology (see the Chinese patent whose publication number is CN 1644176A) that adopts optical...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention provides a disposable hard endoscope sleeve lens and its registration method, the purpose of which is to set the optical lens group in the rigid head of the lens, And through the optical registration of the limit device and the rigid endoscope, it solves the technical problems that the existing rigid endoscope disinfection sleeve affects the light transmission or is difficult to register, resulting in poor imaging effect and affecting medical judgment.

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