Telescopic counting root canal file

Abstract

The invention discloses a telescopic counting root canal file and belongs to medical devices for dentistry. The telescopic counting root canal file disclosed by the invention comprises a telescopic handle, wherein a counter is arranged on the handle; a hole is formed in an upper end face of the handle; an annular groove is formed in the inner side wall of the hole; a display hole is formed in theside wall of the annular groove; the counter comprises a character wheel and further comprises a pawl device; the character wheel is arranged on the annular groove in a sleeving manner; a digital identifier is arranged on the outer side wall of the character wheel; the upper end face of the character wheel is fixedly connected with a ratchet wheel; the pawl device is arranged on the side wall of the hole; the pawl device is connected with the ratchet wheel; a through hole is formed in the end face of the character wheel; the axis of the through hole is collinear with the axis of the characterwheel; a circular ring is arranged in the through hole in a sleeving manner; a chute is formed in the inner side wall of the circular ring; a button is arranged at the upper end of the hole in a sleeving manner; the button can move in the hole along the axis of the hole; the bottom of the button is connected with a connecting rod; an inclined block is arranged on the side wall of the connecting rod and matched with the chute. According to the telescopic counting root canal file disclosed by the invention, the usage frequency of the root canal file can be intuitively read from the handle.

Description

Technical field [0001] The invention belongs to dental medical equipment, and in particular relates to a root canal file for treating root canals of molars. Background technique [0002] Endodontics and periapical disease are common diseases in dentistry. Preserving the teeth and pulp of patients is the treatment purpose of modern stomatology, and root canal treatment is currently the most common and effective treatment method. The principle of root canal surgery is to remove most of the infections in the root canal through mechanical and chemical methods, and to fill the root canal and seal the crown to prevent periapical lesions or promote the healing of existing periapical lesions. [0003] Root canal treatment generally includes the following steps: [0004] 1. Root canal preparation: open the pulp, thoroughly clear the diseased and necrotic pulp tissue, measure the length of the root canal, and expand the root canal; [0005] 2. Root canal irrigation: repeated operations during ...

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a telescopic counting root canal file in order to meet the functional requirements of counting the root canal files in the prior art and to solve the problem that the root canal files in the prior art are short and affect the operation of medical personnel.

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