Hook type root apex locator

Abstract

The invention relates to a hook type root apex locator which comprises a casing, a hook fixedly mounted at one end of the casing, a filing pin connected to the other end of the casing through a data line and a control panel disposed in the casing. The hook is suspended on the lip, the casing is directly suspended below the hook, and the surface of the casing is provided with a display mechanism for displaying the length of the root apex. The display mechanism, the hook and the filing pin are all electrically connected to the control panel. The hook of the root apex locator is fixedly disposedat one end of the casing. During operation, when the hook is hung on the lip, the casing is directly hung under the hook, that is, the chin of a patient, so that an operator can check data informationdisplayed by the display mechanism instantly during operation.

Description

technical field [0001] The invention relates to a root canal treatment preparation device, in particular to a hook-type root apex locator. Background technique [0002] Root canal therapy, also known as endodontic therapy, is an operation in dentistry to treat pulp necrosis and root infection. Its steps include root canal preparation, root canal disinfection and root canal filling. The requirement for root canal preparation is that the terminal end of the root tip ends at the dentin bone boundary (1mm away from the root tip), which is the junction of the pulp tissue and the periapical tissue. If the file exceeds this position, it will be damaged. Trauma and inflammation to periapical components. Therefore, it is very important to accurately measure the working length of the root canal before root canal preparation. [0003] The root apex locator is a precision electronic instrument used to measure the working length of the root canal. It uses the principle that the imped...

AI Technical Summary

Problems solved by technology

like figure 1 As shown, the existing root apex locator includes a body 11, a data line 12, a hook 13 and a file 14, one end of the data line 12 is connected to the body 11, and the other end is respectively connected to the hook 13 and the file 14, and the data line 12 The length is 1.5m. During operation, the main body 11 is placed on the working platform 15, the hook 13 is hung on the lips, the file 14 is inserted into the root canal, and a closed circuit is formed between the hook 13, the file 14 and the oral cavity. During the continuous insertion of the file needle 14, the resistance value of the closed circuit is constantly changing. In actual operation, the area where the main body is placed is far away from the operating area, and the operator needs to constantly turn the body or head to view the display of the main body during the operation process. The data information on the screen brings inconvenience to the operator, and the data line is long and the space span is large, which is prone to accidents. injuring the patient with a file

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