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Disposable high-speed turbo dental drill handpiece zero-suction device

A dental drill handpiece, disposable technology, applied in the fields of dental drilling, dentistry, dental repair, etc., can solve the problems that cannot meet the requirements of zero back suction, iatrogenic cross infection, suction, etc., and achieve low loss of rotation efficiency , low cost, and the effect of reducing worries

Active Publication Date: 2018-11-27
BEIJING DONGBO PNEUMATIC TOOL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2) Suckback phenomenon causes pollutants to enter mobile phones and cause iatrogenic cross-infection
[0009] Although the ZL201620034540.6 patent improves the brake end surface to be a tapered surface and installs a metal center ring to improve the power loss, it is only installed on one side of the machine head, and there is still the possibility of negative pressure suction on the other side of the machine head
Therefore, it cannot meet the requirement of zero suck back

Method used

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  • Disposable high-speed turbo dental drill handpiece zero-suction device
  • Disposable high-speed turbo dental drill handpiece zero-suction device
  • Disposable high-speed turbo dental drill handpiece zero-suction device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Such as figure 1 , Image 6 with Figure 7 , a disposable high-speed turbo dental drill handpiece zero-back suction device, composed of an anti-back-suction device installed on the side of the dental drill handpiece body 1 with a drill needle 3 and an anti-back-suction device installed on one side of the head cover 14 Composed together, the dental drill handpiece includes a head body 1, a drill 3, a head cover 14, a front handle 23, a rear handle 24, etc., and the head body 1 and the head cover 14 are fastened together. The space is provided with a power wind wheel 9 and a wind wheel shaft 10 that drives the drill needle 3 to rotate. The four-lobe drill chuck 11 that is threaded is used in the wind wheel shaft 10. The wind wheel shaft 10 is supported by two bearings 7 and 12. O-shaped rubber damping rings 8 and 13 are arranged between the bearings 7 and 12 and the nose body 1, and the neck of the nose body 1 is provided with a water channel, an air intake passage and...

Embodiment 2

[0061] When the compressed air flow 20 blowing the wind wheel blows the power wind wheel 9 to rotate, the wind wheel shaft 10 supported by the bearings 7 and 12 and the power wind wheel 9 installed in the middle rotate simultaneously, and drive the drill 3 to complete the cutting of teeth Work. At this time, the axial components 21 and 22 of the compressed air blowing the wind wheel pass through the gaps in the bearings 7 and 12 and blow the elastic shaft seal covers 5 and 17 installed at the two ends of the wind wheel shaft 10 to separate them from the wind wheel shaft 10. , the airflow escapes from the gap of the tapered surface, and the wind wheel shaft 10 can work normally to cut the teeth. The elastic shaft seal covers 5 and 17 are deformed and attached to the inner sides of the non-elastic shaft seal covers 4 and 19 at both ends, so that the amount of deformation is controlled within a certain range. The metal center rings 2 and 18 of the elastic shaft seal covers 5 and ...

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Abstract

The invention relates to a disposable high-speed turbine dental drill mobile phone zero-back suction device. The device is mounted at the two ends of a wind wheel shaft and consists of a drill pin-side anti-back suction device and a head cover-side anti-back suction device. At the stalling moment of the mobile phone, the anti-back suction devices on the two sides act at the same time to realize a technical effect of nearly zero back suction of the mobile phone. The device has the advantages of easiness in preparation, low cost, safety and convenience in debugging and is particularly suitable for a high-speed turbine dental drill mobile phone adopting a disposable pressing tool for pin assembly.

Description

technical field [0001] The invention belongs to a medical device, in particular to a dental hand-held appliance for drilling and grinding teeth. Background technique [0002] The existing high-speed turbine dental drill handpiece comprises a head body, a head cover, a drill needle, a front handle, a rear handle, and an air-water joint. It is connected with the dental treatment machine to obtain the compressed air and cooling pressure water for the mobile phone to work. The front handle is the part held by the doctor. A wind wheel that can be driven by compressed air is installed in the machine head body. The wind wheel is installed in the middle of the wind wheel shaft, supported by two bearings and damped by two O-shaped rubber rings. At present, the disadvantage of this dental drill handpiece is that it can produce suck-back phenomenon, and suck-back phenomenon is the main reason that causes iatrogenic cross-infection. [0003] 1) Generation of pollution sources [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C1/05A61C1/08A61C3/02
CPCA61C1/057A61C1/08A61C3/02
Inventor 张福东
Owner BEIJING DONGBO PNEUMATIC TOOL CO LTD
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