JPS6333866B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention uses a single handpiece to inject cleaning water into the oral cavity, particularly into the root canal, to clean the inside of the root canal, and to remove cleaning water, chemicals, and dirt remaining in the root canal. Related to a dental microvacuum handpiece that suctions suction materials such as cutting waste and dries the inside of the root canal by suctioning minute water droplets that adhere to the inner wall of the root canal or the root apex and cannot be removed by cotton wire or blowing compressed air. It is something.

Treatment for infected root canals can be broadly divided into root canal enlargement and cleaning;
It consists of three major operations: disinfection and root canal filling.
It is already well known that each of these operations is very important and cannot be neglected. However, even if the cutting debris from the root canal enlargement was not sufficiently removed and the next round of disinfection and root canal filling were performed, it would be difficult to say that the treatment was complete, and the possibility of reinfection would be extremely high. . Although root canal cleaning is understood to be an important operation from the above points, it is a complicated operation that requires an extremely large amount of effort during actual treatment. This is because root canal cleaning involves further subdivided operations as follows. That is, it is to wash off cutting debris or dirt adhering to the inner wall of the root canal, remove cleaning water, chemicals, cutting debris, dirt, etc. remaining in the root canal, and further dry the inside of the root canal. Further, special equipment is prepared for each of the above-mentioned cleaning, removal, and drying operations.
Therefore, the operator must be proficient in operating each instrument. There is also the economical problem of purchasing each device.

In view of the above points, the present applicant has developed a dental microbaculum handpiece that can clean root canals, remove dirt, etc., and dry them with a single handpiece, in patent application No. 58-88951. Patent application No. 58-140932,
It is introduced in patent application No. 58-203495. Above 3
With the dental microbaculum handpiece introduced in this article, the operator can receive a product that is both easy to use and economically satisfactory. Although this is already sufficient, the object of the present invention is to provide a dental microvacuum handpiece that is a further improvement on the dental microvacuum handpiece described above.

A common feature of the three dental microvacuum handpieces mentioned above is that the handpiece body is provided with a suction force generating device. Therefore, the structure of the handpiece body is complicated and the weight of the handpiece body is large. The present invention is an improvement on this point, and its feature is that the handpiece body and the suction force generating device are separated, and the two are connected by a hose.

The present invention will be described below with reference to the drawings of one embodiment. FIG. 1 is a basic configuration diagram, in which 1 is the handpiece body, 2 is a suction force generating device, and in the present invention, this device may be either an ejector type air vacuum or a motor vacuum. The handpiece body 1 and the suction force generating device 2 are connected by a hose 3 and communicate with a suction path 4. The suction path 4 communicates with a pipette 9 detachably connected to the lower end surface of the head 10. The pipette is flexible and gradually contracts toward the tip. Further, the cleaning water supply source 5 and the handpiece body 1 are connected by a hose 7 and communicated with a water supply channel 6, and the water supply channel 6 communicates with a water inlet 8. The pipette 9 is provided so that water flows along the outer circumferential surface thereof.

In the dental microvacuum handpiece configured as described above, if cleaning water is supplied from the cleaning water supply source 5, the cleaning water flows out along the pipette 9 and removes the cuttings adhering to the inner wall of the root canal. Wash away debris and dirt. Furthermore, when the suction force generating device is activated, the pipette 9 inserted into the root canal suctions and removes cleaning water, chemical solution, cutting waste, dirt, etc. from the root canal. Furthermore, the inside of the root canal can be dried by suctioning minute water droplets attached to the inner wall of the root canal.

As described above, the structure of the present invention is extremely simple, only having a suction path and a water supply path inside the handpiece body. Therefore, the weight is reduced, the operator's grip fatigue is reduced, and manufacturing costs can be reduced, which is extremely beneficial.

Next, FIG. 2 is a basic configuration diagram, in which the handpiece of the embodiment shown in FIG. 1 is provided with a mechanism for blowing out compressed air from a pipette. Reference numeral 11 denotes a compressed air supply source, which is connected to the handpiece body 1 by a hose 12 and communicates with an air supply path 13. The air supply path 13 is connected to the suction path 4, and a circuit switch 14 is provided at the connection point. The circuit switching device 14 is a switching device that allows the suction paths 4 and 4' to communicate with each other, or allows the suction path 4 and the air supply path 13 to communicate with each other.

When the circuit switch 14 of the dental microvacuum handpiece configured as described above is operated to connect the suction path 4 and the air supply path 13 to supply compressed air, compressed air is ejected from the pipette 9.
Alternatively, if a blockage occurs in the suction path 4, the blockage can be blown out with compressed air. Moreover, if washing water is also jetted out at the same time, the washing water will be jetted out from the tip of the pipette 9 as a mist of pressurized washing water, which will greatly improve the washing power.

[Brief explanation of the drawing]

FIG. 1 is a basic configuration diagram of the present invention. FIG. 2 is a basic configuration diagram of another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Handpiece body, 2...Suction force generator, 5...Washing water supply source, 9...Pipette, 11
...Compressed air supply source, 14...Circuit switch.

Claims (1)

[Claims] 1. Clean the inside of the root canal by pouring cleaning water into the oral cavity, especially into the root canal, and aspirate the cleaning water, medicine, dirt, etc. in the root canal, and remove any substances that may adhere to the inner wall of the root canal or the root apex. In a dental microvacuum handpiece that dries the inside of a root canal by suctioning minute water droplets, the handpiece body and the suction force generator are separated, the two are connected with a hose, and compressed air is supplied. A dental micro vacuum hand characterized in that an air supply path is connected to a suction path, a circuit switching device is provided at the connection point, and compressed air is caused to flow back into the suction path by operating the switching device. piece.