JPS6297548A - Dental ultrasonic washing jig - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is a method of adding a cleaning liquid to root canals, periodontal pockets, etc. in order to clean extremely narrow gaps such as root canals and periodontal pockets in dental treatment. The present invention relates to an ultrasonic cleaning tool for dentistry that makes it possible to clean and remove foreign substances and stains inside root canals, periodontal pockets, etc. by transmitting ultrasonic vibrations to the cleaning liquid.

[Conventional technology and problems]

Conventionally, root canals, periodontal pockets, etc. have been cleaned by using a syringe or a syringe, or by wrapping absorbent cotton around a cleanser and soaking it with a medicinal solution. However, the root canal is a narrow and deep hole, and the periodontal pocket is sealed by the gingiva and the gap between the gums and the gums is narrow, making it impossible to enter the narrow gap with a syringe, and even with a needle, the root canal cannot be inserted. It is difficult to clean these areas by simply injecting the cleaning solution into the tip of the tip, and either it takes a long time to clean, or the cleaning is insufficient and the treatment effect is not fully achieved. There were many cases where he did not perform well. There are also scalers with a structure in which a tip is fixed to the tip of an ultrasonic vibrator, and a flow path passing through the tip has a cleaning liquid spout opening at the tip, but these tips are generally thick and have a large amount of water. Because the tip has a curved shape that does not deform, it cannot be used in root canals, and even if this tip is thinned, it cannot be used in a cleaning solution containing Ringer's solution or other medicinal ingredients, which is mainly used as a cleaning solution. Microscopic crystals often block the flow path of the chip, and each time it is necessary to replace the chip and re-fix it to the ultrasonic transducer, which is a problem that is extremely troublesome and impractical. there were.

[Means for solving problems]

The present invention was completed as a result of research aimed at providing means for solving the above-mentioned conventional problems.

That is, in the present invention, a flexible water supply connection tube is attached to the rear end of a water channel provided axially passing through an ultrasonic transducer built into a housing, and the ultrasonic transducer is connected to a flexible tube. The rear end of the chip holder is coaxially screwed onto the tip, and the water inlet of the water channel provided in the chip holder extending from the water inlet on the rear end surface of the chip holder to the water outlet on the side wall is heated by ultrasonic waves. A tip made of a thin metal tube is connected to the tip of the water channel of the vibrator and is replaceably attached to the tip of the tip holder, intersecting the axial direction of the tip holder. A flexible pressurized water supply tube for supplying pressurized water to a hydraulically driven cleaning liquid supply source is provided in the water channel on the side wall of the chip, and a flexible cleaning liquid receiving tube is provided at one end of the chip for connecting to the cleaning liquid supply source. This invention relates to an ultrasonic cleaning tool for dentistry, characterized in that nine tubes are attached to each.

Hereinafter, the present invention will be explained in detail with reference to the drawings.

Fig. 1 is a cross-sectional explanatory diagram of one embodiment of the dental ultrasonic cleaning tool according to the present invention, Fig. 2 is a schematic explanatory diagram of the entire piping, and Fig. 3 is an example of a hydraulically driven cleaning liquid supply source. FIG.

In the drawings, reference numeral 1 denotes an ultrasonic transducer, which is housed in a housing 2. The ultrasonic transducer 1 generally consists of a cone and a horn attached to the main body of the ultrasonic transducer, but in the present invention, these are collectively referred to as the ultrasonic transducer 1. A flexible water source connection tube 4 is attached to the rear end of the water channel 3. 5 is a chip holding part, and the rear end is an ultrasonic transducer 1 as shown in FIG.
It is coaxially screwed onto the front end of the By screwing in this manner, the connection between the water channels described below becomes easy to construct, and the work of attaching or detaching the chip holding portion 5 becomes easy. Furthermore, in order to facilitate these operations, it is preferable to position the tip of the ultrasonic transducer 1 in the opening of the housing 2 as shown in FIG. Inside the chip holding part 5, a water channel 6 is connected from a water inlet 6a on the rear end surface of the chip holding part 5 to a water outlet 6 on the side wall.
b, and this water inlet 6a is connected to the tip of the water channel 3 of the ultrasonic transducer 1, as shown in FIG. 7 is a tip made of a metal thin tube such as stainless steel, and is thin with an outer diameter of about 0.3 mm to 1.0 mm and has a tip holding portion 5 suitable for dental treatment.
Projection length from 10mm to 50m.

It is preferable that the cuts at both ends be approximately perpendicular to the length direction. As shown in FIG. 2, the tip 7 is attached to the tip of the tip holder 5 so as to be replaceable, intersecting the axial direction of the tip holder 5. Depending on the relationship between the insertion direction of the tip 7 into the affected area and the axial direction of the grip portion, that is, the housing 2, the crossing angle is preferably substantially perpendicular to the axial direction or intersects with the axial direction at an appropriate angle. One embodiment in which the tip 7 is removably attached to the tip of the tip holder 5 is that a large through hole 8 is bored at the tip of the tip holder 5, and a chuck 9 is inserted into the large through hole 8. This is the case if it is installed.

An example of this embodiment will be explained with reference to FIG. 1. The large through hole 8 has a female threaded portion 8a extending from one end to the center, and a conical hollow portion 8b continuously opening to the outer wall on the opposite side at the top. The chuck 9 has a male threaded portion 9.
A and a conical portion 9b divided into 2 to 4 parts, and a small through hole 9C through which the tip 7 can be inserted is bored at the axial position. To attach the chip 7 to the chip holder 5 in the above embodiment, first insert the chuck 9 from the conical part 9b into the large through hole 8, align the conical part 9b with the conical cavity 8b, and connect the male threaded part 9a with a female thread. After that, the tip 7 is inserted into the small through hole 9c by an appropriate length, and the chuck 9 is further screwed in to tighten it completely. By doing so, the divided pieces of the conical portion 9b are pushed toward the axis and firmly grip the chip 7. This chip 7 is manufactured as a continuous long piece, and when used, the ultrasonic vibration frequency, the size and shape of the chip holder 5, and the intersection angle between the chip 7 and the chip holder 5 are determined.

In order to be able to supply cleaning liquid to the tip 7 attached to the tip of the tip holder 5, it is only necessary to cut the tip 7 into an appropriate length by taking into consideration various conditions such as the diameter of the tip 7, as shown in FIG. As shown, a water outlet 6b protruding from the side wall of the chip holder 5 is connected to a hydraulically driven cleaning liquid supply source 13 for supplying pressurized water g.
A flexible pressure water supply tube 10 for supplying pressure water from the chip 7 is attached.
At one end, that is, the end not inserted into the affected area (hereinafter referred to as the cleaning liquid inlet side), a flexible cleaning liquid receiving tube 11 for connecting to a separate cleaning liquid supply source 13 is attached as shown in FIG. ing. It is preferable that the cleaning liquid inlet side of the tip 7 is bent along the outer wall of the tip holding section 5 as shown in the figure, since this facilitates treatment operations and positioning of the tip 7 in the oral cavity. As shown in FIG. 2, a schematic diagram of the piping between the pressure water supply source 14 and the cleaning liquid supply source 13 and this ultrasonic cleaning tool is shown.

Normally, a cord 12 for connecting to the ultrasonic oscillation circuit is pulled out from the rear of the housing 2 together with the tube 4 for connecting the water supply source, and if necessary, a foot switch ( (not shown)
controlled by A foot switch attached to the ultrasonic oscillation circuit side is dedicated to the ultrasonic vibrator 1, and a solenoid valve ( The switch for supplying the cleaning liquid by activating the ultrasonic cleaner (not shown) may be operated by a foot switch or the like separately from this ultrasonic cleaning tool, but the foot switch 13 attached to the ultrasonic oscillation circuit side may They may be linked together. The cleaning liquid supply source 3 may be any conventional one, but if the apparatus shown in FIG. 3, which was invented by the present inventor, is used, the cleaning liquid can be supplied smoothly.

This cleaning liquid supply source 13 includes a cylindrical body 15 and a cylindrical body 15.
a partitioning piston 16 that is movable in the axial direction while in contact with the inner circumferential surface of the cylindrical body 15 without any gaps; a pressure water side lid 17 and a cleaning liquid side lid 1 that are screwed onto both ends of the cylindrical body 15 in a sealing manner, respectively;
8, the pressure water side lid 17 has a pressure water inlet 17a, a drain port 17b, and a drain cap 17c, and the cleaning liquid side lid 18 has a cleaning liquid outlet 18a and a cleaning liquid inlet 18.
b and a cap 18c for a cleaning liquid inlet are provided, respectively. In use, the pressure water supply tube 10 of the ultrasonic vibrator is connected to the pressure water inlet 17a, and the cleaning liquid receiving tube 11 is connected to the cleaning liquid outlet 18a, so that the pressure water side is closer to the partition piston 16. Lid body 1
7 side (hereinafter referred to as chamber A) and the cleaning liquid side lid 18 side (hereinafter referred to as chamber B) are filled with water and cleaning liquid, respectively. As pressurized water flows into chamber A by operating the switch, the partitioning piston 16 is pushed by the pressure water and moves toward the cleaning liquid side lid 18, so that the cleaning liquid in chamber B flows from the cleaning liquid outlet 18a through the cleaning liquid receiving tube 11. It is supplied to the chip 7. If the supply of pressurized water is stopped, the supply of cleaning liquid will also be stopped. When the cleaning liquid in chamber B runs out, the cap 17c and cap 18c are removed, and the water in chamber A is discharged from the drain port 17b, and the partitioning piston 16 is returned to its original position by hand or with a tool. When this happens, inject the cleaning liquid from the cleaning liquid inlet 18a and close the cap 1.
7c, 18c and 17b each day.

Seal 18b. The above is a case where the cleaning liquid supply source 13 is placed as shown in FIG. 3, with chamber A at the bottom and chamber B at the top. If a spring with an appropriate elasticity that can move the partitioning piston 16 by force other than fingers and fingers, but cannot withstand the action of pressurized water, is installed in chamber B, the trouble of returning it to its original position can be reduced. becomes unnecessary.

〔how to use〕

Water supply connection tube 4 for the above dental ultrasonic cleaning tool
to the pressure water supply source 14, and the pressure water supply tube 10 and the cleaning liquid receiving tube 11 to the hydraulically driven cleaning liquid supply source 13.
After inserting the tip 7 into the root canal, periodontal pocket, etc., the cleaning liquid is supplied from the tip of the tip 7, and the cleaning liquid is sprayed into the root canal, periodontal pocket, etc. The chip 7 applies ultrasonic vibration to this cleaning liquid while adding it to the cleaning liquid to clean foreign objects and stains inside root canals, periodontal pockets, and the like.

[Action and effect]

The dental ultrasonic cleaning tool according to the present invention uses a metal thin tube as the tip 7 and attaches it to the tip holding part 5 in a crosswise manner, so that it can be easily inserted into deep parts such as root canals and periodontal pockets. Since the ultrasonic waves are transmitted to the tip 7, the cleaning liquid added to the inside of the root canal, periodontal pocket, etc. is transmitted to the tip 7.
By applying ultrasonic vibrations, the inside of root canals, periodontal pockets, etc. can be thoroughly cleaned in a short time. Moreover, the thin metal tube that can be mass-produced as the chip 7 is appropriately cut in consideration of the optimum conditions for ultrasonic vibration and is attached to the chip holder 5 in a replaceable manner. If the tip 7 becomes clogged, it can be easily and inexpensively replaced with a new tip 7.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional explanatory diagram of the main parts of one embodiment of the dental ultrasonic cleaning tool according to the present invention, Fig. 2 is a schematic explanatory diagram of the entire piping, and Fig. 3 is a hydraulically driven cleaning liquid supply source. It is a cross-sectional explanatory view showing one example. 1...Ultrasonic vibrator 2...Housing 3...Waterway - 4...Water supply connection tube 5...Tip holding part 6...Waterway 6a... -Water inlet 6b...Water outlet a...Tip 8...Through hole 8a...Female screw portion 8b...Conical cavity 9...Chuck 9a... - Male screw part 9b... Conical part 9c... Small through hole 10... Pressure water supply tube 11... Cleaning liquid receiving tube 12... Cord 13... Cleaning liquid Supply source 14... Pressure water supply source 15... Cylindrical body 16... Partition piston 17... Pressure water side lid body 17a... Pressure water inlet 17b... Drainage Port 17c...Cap 18...Cleaning liquid side lid 18a...Cleaning liquid outlet 18b...Cleaning liquid inlet 18c...Cap Figure 3 Procedure amendment November 18, 1985

Claims (1)

[Claims] 1. An ultrasonic transducer (
A flexible water supply connection tube (4) is attached to the rear end of the water channel (3) that passes through the ultrasonic transducer (1) in the axial direction. The rear end of the tip holding part (5) is screwed, and the inside of the tip holding part (5) runs from the water inlet (6a) on the rear end surface of the tip holding part (5) to the water outlet (6b) on the side wall. The water inlet (6a) of the water channel (6) provided in the ultrasonic transducer (1
) is connected to the tip of the water channel (3), and at the tip of the tip holder (5) is a tip (7) made of a thin metal tube that intersects with the axial direction of the tip holder (5). A hydraulically driven cleaning liquid supply source (
A flexible pressure water supply tube (10) for supplying pressurized water to the tip (13), and a flexible cleaning liquid receiving tube (10) for connecting to the cleaning liquid supply source (13) at one end of the tip (7). 11) A dental ultrasonic cleaning tool, characterized in that each of the following is attached. 2 The cleaning liquid inlet side of the tip (7) is the tip holding part (5)
Claim 1, which is folded along the outer wall of
Ultrasonic cleaning tools for dentistry as described in section. 3 The tip (7) is thin with an outer diameter of 0.3 mm to 1.0 mm, and the protrusion length from the tip holding part (5) is 10 mm to 5
Claim 1, which is a 0mm stainless steel thin tube
The dental ultrasonic cleaning tool according to item 1 or 2. 4. Any of claims 1 to 3, in which the chip (7) is attached by a chuck (9) to a through hole (8) bored at the tip of the chip holding part (5). The dental ultrasonic cleaning tool according to item 1.