Oral cavity joint movable opening measurer

Abstract

The invention discloses an oral cavity joint movable opening measurer. A first positioning mechanism comprises a limiting frame, a first positioning arm and a second positioning arm, the limiting frame is provided with a first opening and a second opening, and a first positioning component is arranged at the rear end of the second positioning arm; a second positioning mechanism comprises a ball, a third positioning arm and a fourth positioning arm, the ball is mounted in the limiting frame and can rotate in the limiting frame, the third positioning arm extends out of the first opening, the fourth positioning arm extends out of the second opening, and a second positioning component is arranged at the rear end of the fourth positioning arm; the first positioning arm is used for connecting lower incisors, and the third positioning arm is used for connecting upper incisors, so that the upper incisors drive the first positioning component to move, the lower incisors drive the second positioning component to move, and an incisors movement track is formed; and a tracking mechanism is used for monitoring the first positioning component and the second positioning component, the incisor movement track can be obtained, the opening degree and a opening track of the patient are obtained, and operation is easy, convenient and accurate.

Description

technical field [0001] The invention is used in the technical field of medical instruments, and in particular relates to an oral cavity joint activity opening measuring device. Background technique [0002] Temporomandibular joint, also known as "temporomandibular joint" or "mandibular joint", is composed of mandibular head, temporomandibular fossa and joint tubercle, and is mainly responsible for mouth opening and closing and chewing movement. In stomatology, the diagnosis and treatment of temporomandibular joint disease requires positioning and recording of the patient's mouth opening and opening trajectory. In clinical work, the method of visual inspection and ruler body surface measurement is usually used to determine the degree of mouth opening and opening trajectory of the patient. The relevant data determined by this method cannot be quantified, which is not conducive to grasping the diagnostic information of the patient. In the prior art, although the partial openin...

AI Technical Summary

Problems solved by technology

In clinical work, the method of visual inspection and ruler body surface measurement is usually used to determine the degree of mouth opening and opening trajectory of the patient. The relevant data determined by this method cannot be quantified, which is not conducive to grasping the diagnostic information of the patient.

In the prior art, although the partial opening measuring device can quantify and record the relevant data, the operation of the device is extremely complicated and is not suitable for clinical operation

In addition, although some mechanical gags are easy to operate, they can only record information such as the patient's mouth opening or opening trajectory separately, and cannot perform composite diagnosis, which is not conducive to subsequent diagnostic analysis of relevant data

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