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Needle and its installation method

A bur and needle body technology, applied in medical science, dental prosthetics, dental tools, etc., can solve problems such as damage to the anatomical structure of the pulp chamber roof, achieve ingenious structural design, expand the working range, and improve movement stability. Effect

Active Publication Date: 2022-01-28
台州市恩晓科技咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It solves the problem that the anatomical structure of the medullary chamber roof is damaged due to the circumferential force of the existing bur

Method used

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  • Needle and its installation method
  • Needle and its installation method
  • Needle and its installation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Such as Figure 1 to Figure 6 As shown, the bur includes a bur body 1, the bur body 1 includes a needle body 1a, a connecting part 1b and a working part 1c, the working part 1c is located at the top of the bur body 1, the connecting part 1b is located at the bottom of the bur body 1, and the bur The body 1a is located between the connecting part 1b and the working part 1c, the top of the working part 1c is provided with a protective cap 2, the bottom of the protective cap 2 is provided with a positioning shaft 3, and the needle body 1 is provided with a through inner hole 1d along the vertical direction for positioning The shaft 3 is inserted through the inner hole 1d, and the positioning shaft 3 has a positioning structure for limiting the protective cap 2 in the circumferential direction. The bur is mainly used in root canal therapy to prevent the bur from damaging the tooth tissue at the bottom of the cavity during the operation. During use, the bur is first install...

Embodiment 2

[0069] Such as Figure 7 As shown, the difference between the present embodiment and the first embodiment lies in that the bur body 1 is connected eccentrically to the motor transmission gear, and the connecting part 1b and the needle body 1a are arranged in an off-axis manner. The transmission gear of the motor is eccentrically matched with the bur body 1, and the connection part 1b is not coaxially arranged with the needle body 1a and is also not coaxially arranged with the working part 1c. The eccentric connection structure makes the working part 1c move and rotate in the circumferential direction, which can expand the working range of the bur without changing the original specification of the bur. The inner diameter of the through inner hole 1d is larger than the diameter of the positioning shaft 3 , so when the bur body 1 rotates, the through inner control provides a displacement space for the positioning shaft 3 . This solution is especially suitable for the resection o...

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Abstract

The invention provides a bur and an installation method thereof, belonging to the field of dental medical instruments. The bur includes a bur body, the bur body includes a needle body, a connecting part and a working part, the working part is located at the top of the bur body, the connecting part is located at the bottom of the bur body, the needle body is located between the connecting part and the working part, and the working part The top of the protective cap is provided with a protective cap, and the bottom of the protective cap is provided with a positioning shaft. The bur body is provided with a through inner hole along the vertical direction. The positioning shaft is inserted into the through inner hole. The structure design of the bur is novel, which is beneficial to prevent the anatomical structure of the roof of the medullary chamber from being damaged due to the peripheral force of the bur. The installation method of the bur includes two steps of fitting the body and fixing the positioning shaft to realize the installation of the protective bur and the separate rotation of the parts. The design is ingenious and the installation is convenient.

Description

technical field [0001] The invention belongs to the field of dental medical instruments, and relates to a bur and an installation method thereof. Background technique [0002] The bur is a consumable appliance used by dentists. It is a very small steel needle. This needle is composed of a needle head and a needle handle. It can be inserted into high and low speed mobile phones and used to help dentists open teeth and repair teeth. If the mobile phone used by a dentist is likened to a hand-held drill, the bur is equivalent to the drill on the drill. There are many types of burs in real life, which can be selected and used according to the actual situation. [0003] For example, the application number is 2015200878425, the application date is 2015.02.09, and the name is a utility model patent for a dental bur dedicated to the roof of the pulpectomy chamber, which records a dental bur dedicated to the roof of the pulpectomy chamber, including the handle. The front end of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C3/02
CPCA61C3/02
Inventor 林玉华林瑞凯
Owner 台州市恩晓科技咨询有限公司
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