JPH0576306B2 - - Google Patents

Description

[Detailed description of the invention] Industrial applications This application relates to a dental treatment device.

BACKGROUND TECHNOLOGY AND PROBLEMS Conventionally, a flexible hose of a dental treatment instrument comprising an operating section that operates in response to supply of a working medium is attached to a treatment device body, and the working medium is supplied from the device body to the dental treatment instrument. A dental treatment device configured to supply a working medium is known, and a treatment instrument equipped with an operating section that operates in response to supply of a working medium includes an air turbine that operates in response to a supply of drive air, and an air turbine that operates in response to a supply of drive air, chip air and water. an air turbine handpiece comprising a spout for ejecting a cooling mist when supplied with electricity, and a light guide for guiding a beam of light to the tip for illuminating the treatment area, and rotating a cutting tool when supplied with electric power; A micromotor handpiece comprising a micromotor and a spout that receives a supply of tip air and water and sprays cooling mist onto the treatment area;
Alternatively, a triple syringe equipped with a nozzle that selectively ejects mist, an electric scalpel that uses high-frequency current to conduct incisions on the gums, etc., and a root canal with a measuring needle that operates in response to the output of a pulse oscillator. There are length measuring instruments, root canal cleaning instruments or ultrasonic scalers equipped with a vibrating element that operates in response to the output of an ultrasonic oscillator, and laser treatment instruments equipped with a laser oscillator that operates in response to the output of operating power.

By the way, all of the above-mentioned treatment instruments are connected via flexible hoses to a dedicated working medium supply circuit installed in the dental unit, so many treatment instruments can be connected to the main body of the treatment device such as the dental unit. When equipped, many hoses will be led out from the main body of the treatment device, which may cause the hoses to tangle with each other and interfere with treatment work, or if there are many treatment instruments on the treatment table. When holding the treatment table, the weight of the treatment instrument and the flexible hose acts on the treatment table, resulting in an unbalanced load being applied to the table, or the mechanical structure thereof must be strengthened. Furthermore, there were other disadvantages such as a complicated structure of the treatment device itself.

Purpose, Examples, and Effects Therefore, the present application provides a working medium supply circuit necessary for various therapeutic devices in advance in the main body of the treatment device, and provides a joint member for outputting a common working medium to the treatment device. When the connecting member provided at the rear end of the flexible hose of the therapeutic instrument is connected to the joint member, a detection signal is sent to the main body of the therapeutic apparatus via a detection means that detects the type of the therapeutic instrument. Then,
Of the various working medium circuits installed in the main body of the apparatus, only the working medium supply circuit necessary for the operation of the therapeutic instrument is configured to operate, thereby solving the above-mentioned disadvantages.

Embodiments of the present application will be described in detail below with reference to the drawings.

A shows a main body of a treatment device such as a dental unit that is equipped with a common joint member 1 at a proper position on the side wall, and inside the main body A, information signals guided from the joint member 1 are received, and this signal is identified and required information is transmitted. a selection command circuit 2 that commands the operation of the selection command circuit 2; and a first pressurized air supply that receives the command signal from the selection command circuit 2 and supplies the joint member B with pressurized air for driving at a value suitable for the treatment instrument. a circuit 3, a second pressurized air supply circuit 4 which receives the command signal and supplies the joint member 1 with pressurized air at a value suitable for the treatment device; A water supply circuit 5 that supplies water at a value suitable for the treatment instrument, and upon receiving the command signal, supplies required electrical energy suitable for the treatment instrument, such as electric current, high-frequency current, or ultrasonic current, to the joint member 1. Operating power supply circuit 6
and a light source power supply circuit 7 which receives the command signal and supplies power for a light source such as a lamp to the joint member 1, and the first pressurized air supply circuit 3 and the second pressurized air supply circuit 7. Circuit 4 has a pressurized air source 8
However, a water source 9 is connected to the water supply circuit 5, and a power source 10 is connected to the operating power supply circuit 6 and the light source power supply circuit 7.
are connected to each other. Reference numeral 11 denotes a control section that controls the operation of the selection command circuit 2 by, for example, a foot operation. Furthermore, as shown in FIG.
3, and a small diameter fitting protrusion 15 is protruded from the tip of the insertion barrel 13 via an inclined portion 14. 1 connected to the operating power supply circuit 6.
A pair of ring-shaped connecting pieces 16 , 16 , a circumferential groove 17 communicating with the water supply circuit 5 , a circumferential groove 18 communicating with the second pressurized air supply circuit 4 , and a circumferential groove 18 located in the inclined portion 14 . , an opening 19 communicating with the first pressurized air supply circuit 3, and a lamp connected to the light source power supply circuit 7 at the tip of the fitting protrusion 15. Light source body 20 such as
It's decorated. Reference numeral 21 denotes a reading signal terminal consisting of a pair of ring-shaped connection terminals 22, 22 arranged concentrically on the front end surface of the base 12. This signal terminal 21 is guided into the base 12 and receives the selection command. Connected to circuit 2.

B [B _a to B _f ] are selectively rotatably and detachably connected to the joint member 1 of the device main body A, and come into sliding contact with the reading signal terminal 21 provided on the joint member 1 when connected. Various treatment instruments equipped with reading signal contacts 22 are shown, and this treatment instrument B
The connecting member 2 is connected to the hand-held members 23 [23a to 23f], the flexible hoses 24 [24a to 24f], and the joint member 23 [23a to 23f], which can be rotated once and detachably connected.
5 [25a to 25f], each of the connecting members 25 has an opening at the rear surface at the rear end axis,
A fitting recess 26 into which the insertion shaft cylinder 13 of the joint member 1 is tightly fitted, and a small diameter insertion hole 27 which is connected to the front end of the fitting recess 26 and into which the fitting protrusion 15 is tightly fitted are provided. Further, the reading signal contact 22
A unique signal source 28 consisting of, for example, a resistor connected to
It's decorated. FIG. 2 shows a cross section of a main part of a connecting member 25a in an air turbine handpiece B _a that operates in response to a supply of drive air, tip air, and water. A light guide 29 extends through the flexible hose 24a to the distal head of the air turbine handpiece B _a , and a light guide 29 extends through the flexible hose 24a to the distal head of the air turbine handpiece B a, and communicates with the opening 19 and connects the distal head via an air supply path inserted through the flexible hose 24a. A drive air passage 30 that supplies pressurized air to the air turbine inside the head, and a passageway and a ventilation passageway that communicate with the circumferential grooves 18 and 19 and are inserted into the flexible hose 24a, A water channel 31 and a chip air passage 32 are provided, respectively, for supplying water and chip air to the spout. Further, FIG. 3A shows a cross section of the main part of the connecting member 25b in the micromotor handpiece B _b , and inside this connecting member 25b, the link-shaped connecting piece 16,
16 and supplying operating power to the micromotor via a cord inserted through the flexible hose 24b, and the circumferential groove 18 and the circumferential groove 19.
A water channel 34 and a tip air passage 35 are provided for supplying water and tip air to the spout of the tip head, respectively, through a water passage and a ventilation passage that communicate with the flexible hose 24c and are inserted into the flexible hose 24c, respectively. B shows a cross section of a main part of the connecting member 25c in the ultrasonic scaler B _c , and inside this connecting member 25c, a flexible hose 24c is connected to the ring-shaped connecting pieces 16, 16. An operating power passage 36 that supplies operating power to the ultrasonic vibration through an inserted cord, and a flexible hose 24c that communicates with the circumferential groove 17.
A water channel 37 is provided for supplying water to the spout of the distal head via a water channel inserted through the _syringe , and FIG. In this connecting member 25d, water and tip air are supplied to the spout nozzle at the tip head through a water passage and a ventilation passage that communicate with the circumferential groove 17 and the circumferential groove 18 and are inserted into the flexible hose 24d. Supply water channel 38 and chip air passage 39
FIG. 2D shows a cross section of the main part of the connecting member 25e in the electric scalpel B _e , and inside this connecting member 25e, there is a connecting member 25e connected to the ring-shaped connecting pieces 16, 16. An operating power passage 40 is provided for supplying high-frequency current to the tip blade body through a cord inserted through _the flexible hose 24e.
5f is shown, and this connecting member 25f is connected to the ring-shaped connecting pieces 16, 16 and supplies operating power to the laser oscillator via a cord inserted through the flexible hose 24f. An operating power path 41 is provided for supplying operating power.

When using the air turbine hand piece B _a , the connecting member 24 a of the air turbine hand piece B _a is connected to the joint member 1 . Then, the water supply circuit 5 and the water channel 31, the first pressurized air supply circuit 3 and the drive air passage 30, and the second pressurized air supply circuit 4 and the chip air passage 35 are connected via the connecting member 24a and the flexible hose 24a, respectively. The reading signal contactor 22 is connected to the reading signal terminal 21, and the rear end surface of the light source body 29 is in communication with the rear end surface of the light source body 29.
are pressed into contact with each other, and the selection command circuit 2 connects the connecting member 25a.
The value of the unique signal source 28a installed at is read.

In this state, when the control unit 11 is operated, for example, by a foot operation, the selection command circuit 2 sends the water supply circuit 5, the first and second pressurized air circuits 3 and 4, and the light source necessary for operating the air turbine handpiece B _a . A command signal is output that operates each of the power supply circuits 7, and this command signal causes the circuits 5, 3, 4 and 7 to operate.
is activated, and drive wear, tip air, and water, each adjusted to a value suitable for the operation of the handpiece B _a , are supplied to the handheld member 23a via the flexible hose 24 and the joint member, and the light source 3 is supplied. The light beams from the light sources 20 are guided through the air turbines, the air turbines are activated, and mist is ejected from the head, and light is output from the tip of the head to illuminate the affected area, thereby illuminating the tooth, etc. Cutting work is carried out.

Furthermore, when using the micromotor handpiece B _b , the coupling member 25b of the micromotor handpiece B _b is connected to the joint member B. Then, the water supply circuit 5, the water channel 34, and the second pressurized air supply circuit 4 are connected via the connecting member 25b and the flexible hose 24b.
and the chip air passage 35 are in communication with each other, and the operating power supply circuit 6 and the operating power passage 33 are connected, and the reading signal contact 22 is pressed into contact with the reading signal terminal 21, so that the selection command circuit 2 is connected to the connecting member. 25b
For example, the resistance value of the specific signal source 28b set to is read. If the control unit 11 is operated from this state by, for example, a foot operation, the selection command circuit 2
The water supply circuit 5, the second pressurized air circuit 4, and the operating power supply circuit 6 necessary for the operation of the micromotor handpiece _Bb are respectively operated by the command signal from the micromotor handpiece Bb.
Water and tip air of appropriate values are supplied to the micromotor handpiece B _b and the micromotor is energized to operate, and mist is ejected from the ejection port.

Further, when an ultrasonic scaler is used, a continuous member 25c of the ultrasonic scaler is connected to the joint member 1. Then, the connecting member 25c and the flexible hose 24
The water supply circuit 5 and the water channel 37 communicate through c,
In addition, the operating power supply circuit 6 and the operating power path 36 are connected, and the reading signal contact 22 is pressed into contact with the reading signal terminal 21, so that the selection command circuit 2 is connected to the unique signal source 28 set on the connecting member 24c. Read the value of . When the control unit 11 is operated from this state by, for example, a foot operation, the water supply circuit 5 and the operating power supply circuit 6 necessary for the operation of the ultrasonic scaler B _c are respectively activated by the command signal from the selection command circuit 2. The ultrasonic scaler _Bc is supplied with water adjusted to a suitable value and the ultrasonic vibrator is energized, and the ultrasonic vibrator vibrates the scaler chip, and water is directed from the spout to the scaler chip. Ru.

Further, when using the syringe B _d , the connecting member 25d of the syringe B _d is connected to the joint member 1.
Then, the water supply circuit 5 and the water channel 38 and the second pressurized air supply circuit 4 and the chip air passage 39 are connected to each other via the connecting member 25d and the flexible hose 24d, and the reading signal contactor is connected to the reading signal terminal 21. 22 are brought into pressure contact, and the selection command circuit 2 reads the value of the unique signal source 28 set on the connecting member 25d. When the control unit 11 is operated from this state by, for example, a foot operation, the water supply circuit 5 and the second pressurized air supply circuit 4 are activated by the command signal from the selection command circuit 2, and the cylinder B _d is connected to the syringe. Water and chip air are supplied to the appropriate values, and by operating the operation button, water,
Air or mist is selectively ejected.

Furthermore, electric scalpels B _e to laser treatment instruments B _f
When using the joint member 1, the connecting members 25e to 25 of the electric scalpel B _e to the laser treatment instrument B _f are used.
Concatenate f. Then, the connecting members 25e to 25f
through the operating power supply circuit 6 and the operating power path 40
to 41 are connected, and the reading signal terminal 2
1, the selection command circuit 2 reads the values of the unique signal sources 28 respectively set in the electric knife B _e to the laser treatment instrument B _f . When the control unit is operated from this state by, for example, a foot operation, the operating power supply circuit 6 is activated by the command signal from the selection command circuit 2, and the electric scalpel B _e
In the case of the laser treatment instrument Bf, a high-frequency current is applied to the blade, and in the case of the laser treatment instrument _Bf , the laser oscillator is energized to operate the tip of the blade or output laser light.

In the above embodiment, a resistor is used as a unique signal source provided in the connecting member of each treatment instrument as a means for identifying various hand-held members, and the selection command circuit 2 reads the resistance value and controls the operation of the treatment instrument. Although the case is shown in which the necessary working medium supply source is activated, the resistor is changed and the coil is connected to either the hand-held member or the joint member B that connects it, and the coil is connected to the other. This method consists of a core that is inserted into the coil and reads changes in the inductance value of the coil, and uses changes in air pressure, light intensity, or changes due to the position of electrical contacts as a multi-signal medium. A method for identifying the type of member is adopted as appropriate.

Effects of the Invention As described above, according to the present application, a working medium supply circuit necessary for the operation of various treatment instruments is installed in the main body of a treatment device such as a dental unit, and the rear end of a flexible hose of each treatment device is provided. A working medium supply circuit necessary for operating the treatment device based on the unique signal source when the connecting members provided in the treatment device are each provided with a unique signal source and the connecting members are connected to a common joint member provided in the treatment device main body. Since the connecting members of various treatment instruments can be used by connecting them to the same working medium supply joint member, it is possible to use the connecting members of various treatment instruments by connecting them to the same joint member for supplying the working medium. It is not necessary to equip a joint member for each treatment device, which is economical, and there is no risk of the flexible hoses getting tangled with each other, and only the supply channels necessary for the operation of the various treatment devices are inserted into the flexible hose. As a result, the flexible hose itself can be made lightweight, making it convenient for treatment operations, and there is no need to worry about excessive unbalanced loads being applied to the treatment table on which treatment instruments are placed, as in the past. It has the following advantages.

[Brief explanation of drawings]

The drawings show an embodiment of the present application, and Fig. 1 is an overall configuration diagram, Fig. 2 is an explanatory diagram showing the relationship between the connecting member and the joint member of the air turbine handpiece, and Fig. 3 A to E show various treatment instruments. FIG. 3 is a vertical cross-sectional view of a main part of the connecting member. In the figure, 1 is a joint member, 2 is a selection command circuit, 3, 4
1 is a pressurized air supply circuit, 5 is a water supply circuit, 6 is an operating power supply circuit, 7 is a light source power supply circuit, 12 is a base, 13 is an insertion barrel, 15 is a fitting protrusion, 16 is a connection piece, 20 is a light source, 21 is a reading signal terminal,
22 is a reading signal contact, 23 is a hand-held member, 24
25 is a flexible hose, 25 is a connecting member, 26 is a fitting recess, 28 is a unique signal source, 29 to 41 are various working medium passages, A is a treatment device main body, and B is a treatment instrument.

Claims (1)

[Scope of Claims] 1 Internally, each working medium supply circuit necessary for the operation of various treatment instruments and a signal unique to each treatment instrument are read, and the required working medium supply circuit is activated according to the read signal. Each is equipped with a selection command circuit that gives a command signal, and at the appropriate location on the side wall,
A treatment device main body, such as a dental unit, comprising a joint member having therein a working medium flow path communicating with each of the working medium supply circuits and a reading section communicating with the selection command signal circuit, and a hand-held member. A plurality of treatment instruments are connected to the rear end of the flexible hose, the connecting member being detachably connected to the joint member, and the connecting member is connected to the flexible hose. A working medium passage for supplying a working medium to the hand-held member through a passage provided in the hand-held member and a unique signal source are provided, and when connected to the joint member, the working medium passage is allowed to flow and the unique signal source is provided. A dental treatment device configured to communicate with the reading section. 2. The dental treatment device according to claim 1, wherein the unique signal source is set by a resistance value. 3. The dental treatment apparatus according to claim 1, wherein the unique signal source is set by varying the inductance. 4. The dental treatment device according to claims 1 to 3, wherein the joint member and the hand-held member are rotatably and detachably connected. 5. The joint member is formed by protruding from the front surface of the base an insertion barrel with a fitting protrusion connected to the distal end, a connection terminal on the front surface of the base, a drive air, Output ports for chip air, water, and operating power are provided, and a light source is provided on the fitting protrusion, and a fitting recess, an insertion hole, a unique signal source, and a reading thereof are provided at the rear of the connecting member of each treatment instrument. The dental treatment apparatus according to claim 1, 2, 3, or 4, comprising a signal contactor for use in the dental treatment.