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Novel ultrasonic scaler transducer and scaler handle comprising same

A technology for transducers and dental scalers, which is applied in the fields of cleaning teeth, cleaning methods using liquids, and dentistry. It can solve the problems of complex transducer processing technology and reduce the electromechanical conversion efficiency of transducers, so as to improve electromechanical conversion. Efficiency, achieve insulation, increase the effect of coaxiality

Inactive Publication Date: 2017-03-15
GUILIN WOODPECKER MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing transducer has complex processing technology, although it can achieve a good waterproof effect, but reduces the electromechanical conversion efficiency of the transducer

Method used

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  • Novel ultrasonic scaler transducer and scaler handle comprising same
  • Novel ultrasonic scaler transducer and scaler handle comprising same
  • Novel ultrasonic scaler transducer and scaler handle comprising same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Such as figure 1 As shown, a new type of ultrasonic scaler transducer, the transducer 1 includes a horn 1.1 at the front end, a piezoelectric ceramic 1.5 at the middle and a main rod 1.3 at the rear end; the front end of the main rod 1.3 is provided with a connecting column 1.3 .2, the rear end of the horn 1.1 is provided with a connection groove 1.1.1; the front end of the connection column 1.3.2 passes through the through hole of the piezoelectric ceramic 1.5 and is sealed with the connection groove 1.1.1; the piezoelectric ceramic 1.5 and A Teflon rigid tube 1.7 for insulation is provided between the connecting columns 1.3.2. The use of Teflon rigid tubes can achieve insulation on the one hand, and increase the coaxiality of the four wafers on the other hand, which greatly improves the electromechanical conversion efficiency of the transducer.

[0016] Further, the end of the Teflon rigid tube 1.7 close to the connection groove 1.1.1 extends into the connection groo...

Embodiment 2

[0021] Such as figure 2 As shown, based on the first embodiment, in order to improve the power of the handle, the present invention also makes a further optimized design, the transducer 1 also includes a metal tube 1.4, and one end of the metal tube 1.4 extends into the main rod 1.3 away from the piezoelectric ceramic 1.5 One end of the connecting hole 1.3.1, and the metal pipe 1.4 and the connecting hole 1.3.1 are connected by a plurality of O-rings 1.4.1, and the O-rings 1.4.1 can be set as two, three or four.

[0022] The present invention improves the connection relationship between the main rod 1.3 of the transducer and the inlay (metal tube 1.4). Specifically, this structure cooperates between a metal water pipe and the main rod 1.3, plus three The O-ring 1.4.1, on the one hand, achieves water passage, and on the other hand, greatly reduces the influence of the water pipe on the performance of the transducer. Ordinary transducer 1 mainly adopts the integral connection ...

Embodiment 3

[0027] Such as image 3 As shown, based on the first embodiment, in order to reduce the probability of ignition failure inside the transducer, the present invention also makes a further optimized design. Before the horn 1.1 is connected to the main pole 1.3, a sleeve is added inside the horn 1.1 Barrel 1.6.

[0028] Specifically, a connecting groove 1.1.1 is provided at the rear end of the horn 1.1, and the end of the main rod 1.3 close to the horn 1.1 is provided with a connecting column 1.3.2 extending into the connecting groove 1.1.1; the connecting column 1.3. The front end of 2 passes through the through hole of the piezoelectric ceramic 1.5, and is in sealing connection with the connection groove 1.1.1; It is in conflicting connection with the inner side wall of the connecting groove 1.1.1, and the other end of the sleeve 1.6 is in conflicting connection with the front end of the connecting column 1.3.2.

[0029] The above-mentioned sleeve 1.6 can effectively prevent t...

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Abstract

The invention provides a novel ultrasonic scaler transducer. The novel ultrasonic scaler transducer comprises a front amplitude-change pole, middle piezoelectric ceramics and a back main rod, a connecting post is arranged at the front end of the main rod, a connecting groove is formed in the back end of the amplitude-change pole, the front end of the connecting post penetrates through a through hole of the piezoelectric ceramics and is in tight fit with the connecting groove, and a polytetrafluoroethylene rigid pipe for insulation is arranged between the piezoelectric ceramics and the connecting post. The invention further discloses a scaler handle comprising a shell, a light-emitting device, a top sleeve and the transducer. The novel ultrasonic scaler transducer has the advantages that by the aid of the polytetrafluoroethylene rigid pipe, on one hand, insulation can be achieved, and on the other hand, coaxiality of four wafers can be increased, so that electromechanical conversion efficiency of the transducer is improved greatly; a processing technology is simplified.

Description

technical field [0001] The invention belongs to the field of oral medical equipment, and in particular relates to a novel transducer for an ultrasonic dental scaler and a dental machine handle containing the transducer. Background technique [0002] The prior art discloses a waterproof transducer, which is mainly composed of a coaxially connected horn, piezoelectric ceramics and a main rod. The main rod is composed of a base body and a connecting rod. On the rod, the horn is screwed to the connecting rod and the piezoelectric ceramic is clamped in the middle. There is a gap between the peripheral surface of the connecting rod and the inner ring of the piezoelectric ceramic. On the horn and the main rod base All of them are provided with injection holes communicating with the above-mentioned gaps, and the gaps and injection holes are filled with silica gel. [0003] The existing transducer has complex processing technology, and although it can achieve a good waterproof effec...

Claims

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Application Information

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IPC IPC(8): A61C17/20
CPCA61C17/20A61C2201/00A61C2204/00
Inventor 吴勋贤李云林剑华
Owner GUILIN WOODPECKER MEDICAL INSTR
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