JPH0580219B2 - - Google Patents

Description

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

BACKGROUND TECHNOLOGY AND PROBLEMS Conventionally, a dental treatment instrument has been provided which is configured by rotatably and detachably connecting a joint member that supplies a working medium and a hand-held member that includes an operating section that operates in response to the supply of the working medium. is publicly known, and as a treatment instrument equipped with an operating part in a handheld device, there is an air turbine that operates in response to a supply of drive air, a spout that receives a supply of chip air and water and emits cooling mist, and
An air turbine handpiece comprising a light guide that guides a light beam to the tip for illuminating the treatment area, a micromotor that rotates a cutting tool when supplied with electric power, and a tip air and water that are supplied to the treatment area. A micromotor handpiece comprising a spout that spouts cooling mist, a tribble syringe equipped with a noise that selectively spews out air, water, or mist by operating a button when supplied with tip air and water;
An electric scalpel that receives high-frequency current to perform incisional treatment on the gums, etc., a root canal length measuring instrument with a measuring needle that operates in response to the output of a pulse oscillator, and a vibrating element that operates in response to the output of an ultrasonic oscillator. There are laser treatment instruments equipped with a root canal cleaning tool or an ultrasonic scaler, and 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 with a treatment device, many hoses will be led out from the treatment device itself, and the hoses may become entangled and interfere with treatment work, or the treatment table may hold such many treatment instruments. In some cases, the weight of the treatment instrument and the flexible hose acts on the treatment table, resulting in an unbalanced load on the table, or the mechanical structure of the table must be strengthened. There were disadvantages such as the structure of the main body becoming complicated.

Purpose of the Invention, Embodiments and Effects Thereof, the present application has a configuration in which a flexible hose can be shared with various hand-held members, and when a desired hand-held member is connected to a joint member during use, the connected hand-held member The type of the hand-held member is read, and the read signal is guided to the main body of the treatment device, and among the various working medium sources installed in the main body of the treatment device, only the working medium supply circuit necessary for the operation of the hand-held member is activated. The above-mentioned disadvantages are solved by configuring the device to operate under optimal conditions.

The embodiments of the present application will be described in detail with reference to the drawings below.A
1 shows a dental unit, and B shows a joint member to which a flexible hose 1 is connected to the rear end, and the rear end of the flexible hose 1 is connected to the dental unit A. Inside the dental unit A, there is a selection command circuit 2 that reads information from the joint member B, identifies it, and commands a desired operation, and a selection command circuit 2 that receives a command signal from the selection command circuit 2 and selects the joint member B. The first pressurized air supply circuit 3 supplies the optimum value of drive pressurized air to the
a second pressurized air supply circuit 4 which receives the command signal and supplies an optimal value of pressurized air for chips to the joint member B; and a second pressurized air supply circuit 4 which receives the command signal and supplies the optimal value of water to the joint member B. a water supply circuit 5; an operating power supply circuit 6 that receives the command signal and supplies required electrical energy such as direct current, high frequency current, or ultrasonic current to the joint member B; Each of the first pressurized air supply circuit 3 and the second pressurized air supply circuit 4 is equipped with a light source power supply circuit 7 that supplies power for a light source such as a lamp, and a pressurized air source 8 that supplies water to the first pressurized air supply circuit 3 and the second pressurized air supply circuit 4. A water source 9 is connected to the 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, respectively. 11
is a control section that controls the operation of the selection command circuit 2 by, for example, a foot operation. Also, the joint member B
As shown in Figure 2, in the center of the front of the base b,
The insertion shaft cylinder 12 is provided protrudingly, and this insertion shaft cylinder 1
A fitting protrusion 14 having the diameter of a string is protruded from the tip of the joint member B through an inclined part 13. On the outer circumferential surface of the insertion shaft cylinder 12 of this joint member B, there is a power supply from the operating power supply circuit 6. A pair of ring-shaped connection pieces 16, 16 are connected to the cord 15 led into the joint member B through the inside of the flexible hose 1, and a pair of ring-shaped connecting pieces 16, 16 are connected to the cord 15 led into the joint member B through the inside of the flexible hose 1, and A circumferential groove 18 connects to the water passage 17 led into the joint member B, and a water supply led from the second pressurized air circuit 4 through the flexible hose 1 into the joint member B. A circumferential groove 20 connected to the air passage 19 and air supply that is located in the inclined portion 13 and is led from the first pressurized air supply circuit 3 through the flexible hose 1 into the interior of the joint member B. Openings 22 communicating with the passages 21 are respectively provided, and furthermore, at the distal ends of the fitting protrusions 14, a coupling member B is connected from the light source power supply circuit 6 through the flexible hose 1.
A light source body 24, such as a lamp, is installed inside, and is connected to a cord 23 led to the center of the interior. 25 is a pair of ring-shaped connection terminals 2 on the front end surface of the base b.
This signal terminal 25 is connected to the selection command circuit via a cord 27 led into the base b and inserted through the flexible hose 1. Connected to 2.

C ₁ to C ₆ are selectively rotatably and detachably connected to the joint member B, and include reading signal contacts 28 that come into sliding contact with the reading signal terminals 25 provided on the joint member B when connected. Each of the hand-held members C ₁ to C ₆ has a fitting opening in the rear end shaft core portion of the shaft body 29 and tightly fitting the insertion shaft cylinder 12 of the joint member B. A mating recess 30;
A small-diameter insertion hole 31 is provided at the front end of the fitting recess 30 and is closely fitted with the fitting protrusion 14, which is connected to the reading signal contact 28 and is made of, for example, a resistor. A unique signal source 32 is installed inside the shaft body 29.

FIG. 2 shows a cross section of a main part of the handheld member _C1 in the air turbine handpiece, and inside the shaft body 29, there is a light guide 33 extending from the insertion hole 31 along the shaft center to the tip head; A drive air passage 34 that communicates with the opening 22 and supplies pressurized air to the air turbine in the tip head, and the circumferential groove 18 and the circumferential groove 2.
A water channel 35 and a tip air passageway 3 that communicate with 0 and supply water and tip air to the spout of the tip head, respectively.
6 are provided respectively. FIG. 3A shows a cross section of the main part of the handheld member _C2 in the micromotor handpiece, and inside the shaft body 21 there is a power supply connected to the ring-shaped connecting pieces 16, 16 to power the micromotor. An operating power path 37 that supplies
and a water channel 3 that communicates with the circumferential groove 18 and the circumferential groove 20, respectively, and supplies water and tip air to the spout of the tip head.
8 and a tip air passage 39 are respectively provided, and FIG.
C ₃ shows a cross section of the main part, and inside the shaft body 29 there is an operating power passage 40 that connects with the ring-shaped connecting pieces 16 and 16 and supplies operating power to the ultrasonic transducer, and a peripheral Water channels 41 communicating with the grooves 18 and supplying water to the spout of the tip head are provided respectively, and _FIG . The circumferential groove 1
8 and the circumferential groove 20, respectively, and a water channel 43 and a chip air passage 44 are provided to supply water and chip air to the spout of the tip head _{. FIG} . In the shaft body 29, there is provided an operating power passage 45 that connects with the ring-shaped connecting pieces 16, 16 and supplies power to a vibrator that applies ultrasonic vibration to the tip blade body. Furthermore, _FIG .
An operating power path 46 is provided which connects to the laser oscillator 16 and supplies operating power to the laser oscillator.

Thus, when using an air turbine handpiece, the air turbine handpiece handheld member _C1 is connected to the joint member B. Then, joint member B
The water supply circuit 5 communicates with the water channel 35, the first pressurized air supply circuit 3 communicates with the drive air passage 34, and the second pressurized air supply circuit 4 communicates with the chip air passage 36, respectively, and the light source body 24 and the light guide 33 communicate with each other. The rear end faces face each other, and the reading contact 28 is in pressure contact with the reading signal terminal 25, and the selection command circuit 2 is connected to the unique signal source 32 of the handheld member _C1 , that is, the unique signal set in the air turbine handpiece. For example, read the resistance value.

In this state, when the control unit 11 is operated by, for example, a foot operation, the selection command circuit 2 sends the water supply circuit 5, the first and second pressurized air supply circuits 3 and 4, and the light source power necessary for operating the air turbine handpiece. A command signal is output which operates each of the supply circuits 7, and this command signal causes the circuits 5, 3, 4 and 7 to be activated.
is activated, and the handheld member C ₁ is supplied with drive air, tip air, and water, each adjusted to a value suitable for the operation of the handpiece, via the flexible hose 1 and the coupling member B, and a light source via the light guide 33. The light rays from the body 24 are guided, the air turbine is operated, and mist is ejected from the head, and light is output from the tip of the head to illuminate the affected area, thereby cutting teeth etc. will be carried out.

Further, when using a micromotor handpiece, a micromotor handpiece handheld member _C2 is connected to the joint member B. 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 communicate with each other via the joint member B,
In addition, the operating power supply circuit 6 and the operating power path 37 are connected, and the reading signal contact 28 is pressed into contact with the reading signal terminal 25, so that the selection command circuit 2 is connected to the unique signal source 32 set on the hand-held member _C2 . For example, read the resistance value. When the control unit 11 is operated from this state by, for example, a foot operation, a command signal from the selection command circuit 2 is sent to the water supply circuit 5, the second pressurized air circuit 4, and the operating power supply circuit necessary for operating the micromotor handpiece. 6 are activated, water and tip air adjusted to values suitable for the operation of the handpiece are supplied to the handheld member C ₂ , and electricity is energized to the micro motor. gushes out.

Further, when an ultrasonic scaler is used, an ultrasonic scaler hand-held member _C3 is connected to the joint member B.
Then, the water supply circuit 5 and the water channel 4 are connected via the joint member B.
1 and the operating power supply circuit 6 are connected to the operating power path 40, and the reading signal contact 28 is pressed into contact with the reading signal terminal 25, so that the selection command circuit 2
reads the value of the unique signal source 32 set on the hand-held member _C3 . When the control unit 11 is operated from this state by, for example, a foot operation, a command signal from the selection command circuit 2 causes a water supply circuit 5, a second pressurized air supply circuit 4, and an operating power supply circuit 6 necessary for the operation of the ultrasonic scaler. are operated respectively, and the hand-held member C ₃
Then, the water adjusted to a value suitable for the operation of the scaler is supplied with chip air and energized to the ultrasonic vibrator of the hand-held member _C3 , and the ultrasonic vibrator vibrates the scaler tip and is released from the spout. Water is directed to the scaler chip.

When using a syringe, a syringe hand-held member _C4 is connected to the joint member B. Then, the water supply circuit 5 and the water channel 43 and the second pressurized air supply circuit 4 and the chip air passage 44 communicate with each other via the joint member B, and the reading signal contact 28 is brought into pressure contact with the reading signal terminal 25. Selection command circuit 2 is a hand-held member
Read the value of the unique signal source 32 set to _C4 .
In this state, when the control unit 11 is operated 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 corresponding handheld member _C4 is operated. Water and tip air adjusted to suitable values are supplied to the syringe, and water, air, or mist is selectively ejected from the ejection nozzle by operating the operation button.

Furthermore, when using an electric scalpel or a laser treatment instrument, hand-held members C ₅ to C ₆ for the electric knife or laser treatment are connected to the joint member B. Then, the operating power supply circuit 6 and the operating power paths 45 and 46 are connected via the joint member B, and the reading signal contact 28 is pressed against the reading signal terminal 25, so that the selection command circuit 2 is connected to the hand-held member _C5. The values of the unique signal sources 32 set at C6 to _C6 are read. When the control unit is operated from this state by, for example, a foot operation, the operating power supply circuit 6 is activated by a command signal from the selection command circuit 2, and the hand-held members _C5 to _C6 are energized and the tip blade is activated. Or a laser beam is output.

In the above embodiment, a resistor is used as a unique signal source as a means for identifying various handheld members, and
The selection command circuit 2 reads this resistance value and selectively operates the working medium supply circuit necessary for operating the treatment device. A coil is provided on one side of the coupling member B, and a magnetic core of different length is inserted into the coil at the time of connection, and the change in inductance value caused by the coil and the magnetic core is provided. As other signal medium means, a method for identifying the type of the hand-held member using changes in air pressure, optical changes, or changes due to the position of electrical contacts may be adopted as appropriate.

Effects of the Invention As described above, according to the present application, the dental unit is equipped with a working medium supply circuit necessary for operating various treatment instruments, and each hand-held member is provided with its own signal source, and the hand-held member When connected to the joint member, only the working medium supply circuit necessary to operate the hand-held member based on the unique signal source is configured to operate selectively and under suitable conditions. Hand-held members can be commonly connected to the same joint member, which eliminates the need to equip each treatment instrument with a flexible hose, which is economical and flexible. It is convenient for treatment work because there is no risk of the hoses getting tangled with each other, and there is also the advantage that there is no risk of excessive unbalanced loads being applied to the treatment table on which the treatment instruments are placed, unlike in the past.

[Brief explanation of the drawing]

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 air turbine handheld member and the joint member, and FIGS. 3A to 3E are main parts of various handheld members. FIG. In the figure, 1 is a flexible hose, 2 is a selection command circuit,
3 and 4 are pressurized air supply circuits, 5 is a water supply circuit, and 6
is an operating power supply circuit, 7 is a light source power supply circuit, 1
2 is an insertion shaft cylinder, 14 is a fitting protrusion, 25 is a reading signal terminal, 28 is a reading signal contact, 30 is a fitting recess, 31 is an insertion hole, 32 is a unique signal source, and A is a dental unit. , B is a joint member, C is a handheld member, and b is a base.

Claims (1)

[Scope of Claims] 1 Internally, each working medium supply circuit necessary for the operation of various treatment instruments and a signal specific to each treatment instrument are read, and a required working medium supply circuit is selected according to the read signal. and a selection command circuit that generates an operation command signal to operate the working medium supply circuit under suitable conditions. a flexible hose, which is attached to the tip of the flexible hose and which includes a working medium flow path that communicates with each of the working medium supply circuits, and a signal circuit that communicates with the selection command circuit; a joint member having output ports communicating with each other and a reading section connected to the selection command circuit via the signal circuit; a plurality of hand-held members for treatment instruments, each having a plurality of hand-held members for treatment instruments, each having a plurality of hand-held members for a treatment instrument, each having a plurality of hand-held members having a plurality of hand-held members, each having a plurality of hand-held members for a treatment instrument, each of which, when connected to the joint member, allows communication of a working medium in its own working medium passage and conducts a unique signal source to the reading portion; A dental treatment device consisting of. 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 inductance. 4. The dental treatment device according to claim 1, 2, or 3, wherein the joint member and the hand-held member are rotatably and detachably connected. 5. The coupling member is made up of an insertion barrel with a fitting protrusion connected to its tip protruding from the front surface of the base, a connecting terminal on the front surface of the base, and a drive air tube on the outer circumference of the insertion barrel. 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, a fitting hole, a unique signal source, and a signal for reading the same are provided at the rear of each hand tool. A dental treatment apparatus according to claim 1, 2, 3, or 4, comprising a contactor.