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Contra-angle handpiece with conducting strip arranged in rear cover and root canal preparation machine

A conductive sheet and handpiece technology, which is used in medical science, dentistry, dental drilling, etc., can solve the problems that the rotating shaft affects the transmission of test signals, the relative linear speed of the rotating shaft is large, and the life of the conductive sheet is reduced, so as to ensure the conductive connection. Performance, easy socket assembly, easy disassembly effect

Pending Publication Date: 2020-12-11
CHANGZHOU SIFARY MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Some bending heads with the function of root canal length measurement integrate the conduction circuit inside the head, relying on the elasticity of the conductive sheet to hug the rotating shaft to ensure that the test signal can be transmitted to the cutting tool during rotation, but the conductive sheet and the internal rotating shaft of the bender The relatively high linear speed causes the conductive sheet to be more easily worn (seriously reducing the life of the conductive sheet), and the impurities generated after the wear cause poor contact between the rotating shaft and the conductive sheet and affect the test signal transmission, and the brush sheet is integrated inside the machine head , very difficult to disassemble and very expensive to repair

Method used

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  • Contra-angle handpiece with conducting strip arranged in rear cover and root canal preparation machine
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  • Contra-angle handpiece with conducting strip arranged in rear cover and root canal preparation machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] like Figure 1 to Figure 3 As shown, the back cover of the present embodiment has a curved machine head with a built-in conductive sheet, including a machine head 2, a back cover 4 and a cutting tool 1, and a movement assembly for driving the cutting tool 1 to rotate is arranged in the machine head 2, and the machine head 2 One side of the machine head shell 5 is connected to the handle (not shown in the figure); the back cover 4 includes a connecting cylinder 7 and an end cap 6, and a conductive sheet 3 is arranged inside the back cover 4, and the conductive sheet 3 includes a half-ring integrally formed body 31 and elastic part 32, the outer wall of the connecting cylinder 7 is provided with a card slot 74 suitable for the half ring body 31, so that the half ring body 31 is sleeved on the card slot 74 of the connecting tube 7, and the end cap 6 is connected with the The cylinder 7 is socketed and fixed by glue or interference fit, which is used to limit the half ring ...

Embodiment 2

[0032] A root canal preparation machine, comprising the bending head with a built-in conductive sheet in the back cover described in Embodiment 1.

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PUM

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Abstract

The invention relates to a contra-angle handpiece with a conducting strip arranged in a rear cover and a root canal preparation machine. The contra-angle handpiece with the conducting strip arranged in the rear cover comprises a handpiece, the rear cover, and a cutting tool; a handpiece core assembly used for driving the cutting tool to rotate is arranged inside the handpiece; the conducting stripis arranged inside the rear cover, and the conducting strip comprises a semi-ring body and an elastic part; the semi-ring body is sleeved by the rear cover; the tail end of the elastic part is connected with the middle of the semi-ring body; the front end of the elastic part extends to the center of the semi-ring body; and the front end of the elastic part is in contact with the center of the endface of the cutting tool when the rear cover is fixed to the handpiece.

Description

technical field [0001] The invention relates to the technical field of dental auxiliary equipment, in particular to a bending head and a root canal preparation machine with a built-in conductive sheet in the back cover. Background technique [0002] There is known a device for carrying out endodontic treatment and at the same time measuring the root canal, using a cutting tool, such as a file or a drill, which is also used as a measuring probe. In this case, the cutting tool is used as an electrode of the root canal length measurement circuit, and the measurement signal needs to be transmitted to the control host. [0003] Some bending heads with the function of root canal length measurement integrate the conduction circuit inside the head, relying on the elasticity of the conductive sheet to hug the rotating shaft to ensure that the test signal can be transmitted to the cutting tool during rotation, but the conductive sheet and the internal rotating shaft of the bender The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C1/12A61C19/04A61C5/42
CPCA61C1/12A61C19/041A61C5/42
Inventor 陶欢王宏灿
Owner CHANGZHOU SIFARY MEDICAL TECH CO LTD
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