Adjustable dental saliva ejector

By designing an adjustable dental saliva suction device with multi-position slots and an angle adjustment mechanism, the problem of existing dental saliva suction devices being unable to accurately match treatment scenarios and doctors' operating habits has been solved, thus improving the precision and safety of dental treatment.

CN224523317UActive Publication Date: 2026-07-21SHANGHAI TONGJI STOMATOLOGY HOSPITAL (TONGJI UNIVERSITY AFFILIATED STOMATOLOGY HOSPITAL)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI TONGJI STOMATOLOGY HOSPITAL (TONGJI UNIVERSITY AFFILIATED STOMATOLOGY HOSPITAL)
Filing Date
2025-08-27
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The length adjustment structure of existing dental suction devices is mostly a single-position fixed or non-locking sliding design, which cannot accurately match different dental treatment scenarios and doctors' operating habits, resulting in insufficient scenario adaptability and affecting treatment accuracy and safety.

Method used

An adjustable dental saliva suction device was designed, featuring a multi-position slot and an angle adjustment mechanism. It includes a suction device body, an angle adjustment mechanism, and a length adjustment mechanism. Through the cooperation of a sliding rod limiting cam and a tension spring, multi-position locking and angle adjustment are achieved. Combined with a universal adjustment ball head and an internal flexible tube, it can precisely match treatment needs and doctors' operating habits.

Benefits of technology

It achieves precise matching of multi-position card slots with different treatment scenarios and doctors' treatment habits, improving operational comfort, reducing maintenance costs, avoiding saliva contamination of the surgical field, and improving saliva suction efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224523317U_ABST
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Abstract

The utility model belongs to dental instrument technical field especially is a kind of adjustable dental saliva aspirator, including saliva aspirator main part, the saliva aspirator main part includes angle adjusting mechanism and length adjusting mechanism, the angle adjusting mechanism includes suction head, the surface of suction head is fixedly connected with saliva telescopic bellows, the length adjusting mechanism includes adjusting fixed casing, the inner surface sliding connection of adjusting fixed casing has length adjusting slide bar, the surface of length adjusting slide bar is fixedly connected with slide bar limit protruding axle symmetrically, the surface of adjusting fixed casing is equipped with limit sliding slot and first protruding axle clamping groove, the bottom of length adjusting slide bar is fixedly connected with stretch spring, the bottom of stretch spring is fixedly connected with rotary base;The utility model can be accurately matched with different treatment scene demand and different doctor's treatment habit by multi-gear clamping groove, without doctor or patient to accommodate equipment, improve operation comfort.
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