JPH0685791B2 - Dental treatment equipment - Google Patents

Description

TECHNICAL FIELD The present application relates to a dental treatment device.

Conventional technology and its problems Conventionally, a mounting base provided on a treatment table or the like equipped in a treatment chair or a dental unit and having a working medium supply terminal group for supplying a working medium necessary for operating various treatment instruments. In addition, a treatment instrument unit composed of a single treatment instrument and a supporting member for holding the treatment instrument is detachably attached, and the attachment enables the treatment instrument of the working medium supply terminal group to operate. Only the necessary working medium supply terminals are connected to the working medium circuit of the support member, and the required working medium is supplied from the support member to the treatment instrument via the flexible hose by pressing the operation switch, and the treatment instrument unit is Dental treatment devices are known which are designed so that they can be replaced with a treatment instrument unit with other types of treatment instruments as required.

By the way, according to the above-mentioned dental treatment apparatus, the working medium is supplied to all the working medium supply terminals of the mounting base by the operation of the operation switch, and the working medium supply terminals that do not communicate with the working medium supply passage of the support member are there. This structure not only complicates the shield structure of these supply terminals, but also tries to replace the hand-held member connected to the joint member of the therapeutic instrument with one with a different rating. There is a disadvantage in use that a suitable working medium corresponding to the member cannot be obtained.

OBJECTS AND EXAMPLES AND ACTIONS OF THE INVENTION Therefore, the present application provides information on the type of a treatment instrument unit on a mounting base, for example, whether it is for an air turbine handpiece, a micro handpiece, or a syringe. Rating of the hand-held member in the treatment instrument unit, for example, in the case of an air turbine handpiece, the torque, output by rating information about the rotation speed, etc. to the treatment apparatus body that controls the supply of the working medium, based on those information, The operating medium suitable for operating the treatment instrument can be supplied to the corresponding operating medium supply terminal of the mounting base when the operating switch is operated, thereby eliminating the above-mentioned disadvantages of the conventional ones.

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

FIG. 1 shows a support mechanism for a dental treatment instrument or the like in the device of the present application. (1) is a long cylindrical body having a rectangular cross-section with front and rear ends opened, and a dental treatment instrument (20) whose internal volume is described later can be freely used. Has a size that allows it to be inserted into and removed from, and has a required number of fluid connectors a _{1 to} a ₆ , electrical signal connectors b, and power supply connectors c ₁ , c ₂ , c _{3 at} its rear end. Is arranged so as to penetrate in the thickness direction, and a supporting member A'described later is provided at a required position on the rear surface.
A connecting piece (3) having a type signal source (16) such as a bar code peculiar to is attached in a sealing manner, and at the front end,
A horizontal receiving piece (4) extending forward from the lower surface thereof is provided in a protruding manner.

Reference numeral (5) is a guide hole which is provided at an intermediate position on the lower surface of the cylindrical body (1) and which is long in the longitudinal direction, and is formed with a width such that a flexible hose (20) 'described later can be freely inserted. (6) is a connector provided on the lower surface of the rear part of the tubular body (1), through which the connectors a _{1 to} a ₆ and b, c ₁ , c ₂ , c ₃ and the conductor (7) are respectively provided. The connected connecting element is installed. (8) is a tubular body (1) at a front position in the tubular body (1) via a support piece (9).
A guide roller (10) is rotatably attached in a direction orthogonal to the support roller (10) at a front portion of the cylindrical body (1) with a support piece (11).
Is an actuating plate mounted so as to perform a seesaw motion in the up-and-down direction via, and the front half of the actuating plate extends forward so as to face the receiving part (4). (12) is the operating plate (10)
An actuating signal element, such as a microswitch, provided at a position facing the rear part of the actuating element, which is connected to one of the connectors a _{1 to} a ₆ and has an actuating notch (12) ′. Normally presses the rear half of the operating plate (10) so that the front half of the latter floats above the receiving piece (4). (13) is a mounting screw hole, and the supporting member A'is constituted by the above. Reference numeral (20) is a dental treatment instrument that constitutes a treatment instrument unit A with the support member A ′, in which the flexible hose (20) ′ is drawn out rearward.
As is well known, a tube for circulating a required fluid and a conductive wire connected to the electrical signal connector b or the power supply connector c ₁ , c ₂ , c ₃ are inserted in the 0) ′. Yes,
As shown in FIG. 2, after the end of the flexible hose (20) 'is connected to the connecting tool (6), it hangs down in a U shape and is connected to the tip of the dental treatment instrument (20). Is placed on the operating plate (10) so that the tip of the
The load pushes up the actuating notch (12) 'and the actuating signal element (12) is left inoperative. The dental treatment instrument (20) comprises a joint member (21) and a hand-held member (22) which is detachably and rotatably connected to the joint member (21).
When the hand-held member (22) is connected to 1), the hand-held member (2)
2) is equipped with a rating-specific information reading section (23) for reading the value of a unique signal source composed of, for example, an electric resistance and identifying the type of the hand-held member (22). It is connected to the electric signal connector b via the flexible hose (20), and the treatment instrument unit A is configured as described above.

Reference numeral B is a mounting base for mounting the support member A ', which constitutes a part of a treatment table or a technician table, or a table dedicated to a treatment instrument. The mount B has a length and a width suitable for supporting the rear portion of the tubular body (1), and a height substantially equal to that of the tubular body (1) is provided at the rear end of the rear plate (14). Is integrally formed with a protruding portion (15), and an opening portion (15) a opening at the rear surface is formed in the rear half portion of the protruding portion (15), and the front end portion thereof has
As shown in FIG. 3B, connecting members d _{1 to} d ₆ facing the respective connectors a _{1 to} a ₆ , electrical signal connecting members e facing the electrical signal connector b, and Working power supply connecting members c ₁ , c ₂ , c ₃ facing working power supply connecting members f ₁ , f ₂ ,
The f ₃ and the type information reading section (2) which faces the type signal source (16) and detects the information are embedded.

The connectors a _{1 to} a ₆ are for circulating pressurized air for driving the turbine, for circulating chip air for fog generation, for transmitting signal air, and air. It is distinguished into one for receiving a signal, one for circulating water for fog generation, and one for sucking cutting chips, and the power supply connectors c ₁ , c ₂ , c ₃ are It is divided into one for supplying electric power for operating the micromotor, one for supplying electric power for operating the heater for heating the air, and one for supplying electric power for illumination, and is supported by the supporting member A ′. When the dental treatment instrument to be used is an air turbine driving handpiece, the turbine driving first connector a ₁ , the tip air second connector a _2, and the signal air third connector a
a ₃ and the fourth connector a ₄ for the air signal and the fifth connector a ₅ for the water
In addition, an electric signal connector b, a heater operating power supply terminal c ₂ and an illumination power supply terminal c ₃ are used, and when the dental treatment instrument is a micromotor handpiece, the second, Third, fourth and fifth connectors a _{2 to} a ₅ and electrical signal connector b and power supply connectors c ₁ , c ₂ and c ₃ are used, and a dental treatment instrument is for dental use. In the case of a syringe, the second, third, fourth, and fifth connectors a _{2 to} a _{5, the} electrical signal connector b, and the power supply connector c ₂ are used, and a dental treatment instrument is further used. If is a dental suction tool, the sixth connector a ₆ for suction is used. Within the opening (15) a, the connectors a _{1 to} a ₆ and the connectors b
And a conductor box (18) containing the connecting members d _{1 to} d ₆ and b, c ₁ , c ₂ , c ₃ for connecting the power supply connectors c ₁ , c ₂ , c ₃ to an external device, respectively. ) Has been placed. (19) is a set screw for fixing the treatment instrument unit A on the mounting base B.

Next, when the configuration of the operation circuit of the device of the present application is described in detail with reference to FIG. 4, C indicates a treatment device main body, and the treatment device main body C is classified by the identification information signal from the type information reading section (2) and the rating. An identification command circuit (25) that outputs a command signal by identifying the rating-specific information signal from the information reading section (23) and the detection signal from the detection circuit (24) that detects the signal from the actuation signal element (12). Working medium control section (32) for setting the supply of the working medium suitable for the treatment instrument under the control of the command signal from
The working medium control section (32) includes a drive air supply circuit (26), a chip air supply circuit (27), a water supply circuit (28), and the required direct current, high frequency current or ultrasonic current. An operating power supply circuit (29) for setting electric energy, a lighting power supply circuit (30), and a suction circuit (3
6) and a heating power supply circuit (31) and a plurality of working medium supply circuits necessary for the operation of various therapeutic instruments, and the drive air supply circuit (26) and the chip air supply circuit (2).
There is an air source (33) in 7) and a water source (3) in water supply circuit (28).
4) is the operating power supply circuit (29), the lighting power supply circuit (3
0) and the heating power supply circuit (31), and the suction circuit (36) further includes a suction source (3).
7) are connected respectively. Reference numeral (38) is an operation switch for outputting the working medium from the working medium supply circuit in which the supply of the working medium is set by controlling the operation medium control unit (32) by a hood operation, for example.

In use, however, as shown in FIG. 4, when the treatment instrument unit A including the treatment instrument (20) in which the required hand-held member (22) is connected to the joint member (21) is attached to the mounting base B. The rating-specific information reading unit (23) outputs rating-specific information of the hand-held member to the identification command circuit (25) via the electrical signal connector b and the connection terminal e, and the classification information reading unit (2). Identification command circuit (25)
Are output respectively.

In this state, when the therapeutic instrument (20) is picked up from the actuation plate (10), the actuation plate (10) is tilted by the pressing of the actuation notch (12) ', the actuation signal element (12) is actuated, and the pick-up signal is sent. The operation signal element (12) outputs the signal from the detection circuit (24) via the air signal connector a ₃ and the connection member d ₃ , which is input to the identification command circuit (25). The working medium supply control section (32) has a working medium supply circuit necessary for operating the treatment instrument (20), for example, in the case of an air turbine handpiece, an air turbine and a pressurized air supply circuit for spraying mist (26). ) And (27), water supply circuit for mist ejection (28)
And a power supply circuit for lighting (30), and in the case of a micromotor handpiece, a working power supply circuit (29) for operating a micromotor, a pressurized air supply circuit (27) for spraying mist, and lighting. Power supply circuit (30), and in the case of a syringe, of a pressurized air supply circuit (27) and a water supply circuit (28) for ejecting mist, water or pressurized air,
In addition, in the case of an ultrasonic scaler, the operating power supply circuit (29) for operating the ultrasonic transducer and the water supply circuit (28) for ejecting cooling water, and if it is a suction tool, suction A command signal for setting the output state of the circuit (36) is output.

When the operation switch (38) is operated from this state, an operation signal is given to the operation medium control section (32) and only the various operation medium supply circuits in the operable state are operated, and the operation medium is Mount B and flexible hose (5)
Is supplied to the treatment instrument (20) via the
Works.

When another different treatment instrument is used instead of the treatment instrument (20), the treatment instrument unit A is removed from the attachment base B and then the other treatment instrument unit is connected to the attachment base B. Then, the type information of the other treatment instrument unit and the rating information of the hand-held member connected to the joint member (21) are output to the identification command circuit (25), and from this state, the treatment instrument concerned is operated plate (10). When it is detached and held by hand, a command signal is output from the identification command circuit (25) to the working medium control section (32), and when the operation switch (38) is operated in this state, other therapeutic instruments are activated as in the above embodiment. To do.

When another hand-held member having a different rating is connected to the joint member (21), rating-specific information of the corresponding hand-held member is input to the working medium control unit (32) via the identification command circuit (25) to perform the operation. The medium control unit (32) changes the supply rated value of the required working medium supply circuit according to the rating-specific information, and when the therapeutic instrument (20) is handheld in this state, the signal is sent to the identification command circuit (25). The supply of the working medium is set under a condition suitable for inputting and operating the other hand-held member. When the operation switch (38) is operated from this state, a working medium having a value suitable for the rating of the hand-held member is output as in the actual rubbing example,
The handpiece works properly.

In the above embodiment, the identification command circuit (25) is activated by the pick-up signal of the therapeutic instrument (20), and the command signal is output to the working medium supply control section (32) by this signal. A signal may be omitted, and the identification command circuit (25) may be configured to operate by the AND output of the read information from the type information reading unit (2) and the rating-specific information from the treatment instrument (20). Of course.

FIG. 5 shows a second embodiment of the present application, and this embodiment shows a case where a plurality of treatment instrument units are simultaneously mounted on a mounting base. That is, D is a mounting base having a plurality of mounting mechanisms each having a working medium supply terminal and a signal terminal in the first embodiment, and a plurality of the treatment instrument units A can be replaced on the mounting base D. Is equipped with. FIG. 6 shows an embodiment of the operating circuit of this second embodiment, (41)
[(41) a to (41) c] are the hand-held members (42) [(42) a
To (42) c] and the joint member (43) [(43) a to (43)]
c] shows a handheld dental treatment instrument such as an air turbine handpiece, a micromotor handpiece, or a dental suction tool which is detachably connected to the treatment instrument (41) [(41) a to ( 41) c] are connected to the dedicated support members (44) [(44) a to (44) c] via flexible hoses, respectively, as in the above embodiment, and the treatment instrument unit A is connected.
[Aa to Ac], and this treatment device has a hand-held member (4
When the 2) and the joint member (43) are connected, the rating-specific information reading unit (45) [(45) a to (45) c] that reads the rating information of the hand-held member (42) connected to the joint member (43) is It is provided.
(46) [(46) a to (46) c] are therapeutic instrument units A
A type information reading unit of a treatment instrument unit provided on a mounting base D holding the treatment instrument unit, the type information reading unit (46) holding the corresponding treatment instrument unit A on the mounting unit D side. A signal peculiar to the medical treatment instrument provided in, for example, a bar code is read and this signal is output to an identification command circuit (48) described later. (49) [(49) a through (49)
c] indicates an actuation signal element, and the pick-up information of the corresponding treatment instrument is sent to the identification command circuit (48) described later and the detection circuit (50)
It is output via [(50) a to (50) c]. The treatment device body E receives information from the rating-specific information reading unit (45) and information from the type information reading unit (46), and responds by inputting a pick-up signal from the earliest detection circuit (50). In addition to the identification command circuit (48) for outputting the identification signal, a pressurized air supply circuit (5) for receiving a command signal from the identification command circuit (48) and setting a suitable pressurized air corresponding to the signal.
1), a water supply circuit (52) that receives the command signal and sets a suitable amount of water corresponding to the signal, and a required electric energy such as a DC high frequency output or ultrasonic output corresponding to the command signal when receiving the command signal Power supply circuit (53) for setting the electric power for lighting, which receives the command signal to set electric energy for lighting, and a suction circuit for setting a required negative pressure supply by receiving the command signal (55) Working medium control section comprising a plurality of working medium supply circuits (56)
And a detection signal from the detection circuit (50) when the treatment instrument (41) is separated from the actuation signal element (49), and outputs the detection signal at the earliest of the detection signals as a priority signal. At the same time, the priority holding circuit (57) for holding the priority output state and the treatment instrument (41) provided for the treatment instrument (41) respectively are required for the operation of the treatment instrument (41) corresponding to the input of the priority signal. Switch that allows the flow of working medium (58)
[(58) a, (58) b, (58) c], and the pressurized air supply circuit (51) has an air source (59) and the water supply circuit (52) has A water source (60) supplies a power (61) to the operating power supply circuit (53) and the lighting power supply circuit (54).
However, the suction source (62) composed of a vacuum pump is connected to the suction circuit (55). Reference numeral (63) is an operation switch for controlling the operation medium supply control section (56) by, for example, a hood operation to output only the required operation medium set from the operation medium supply circuit.

However, at the time of use, as shown in FIG. 6, the hand holding members (42) [(42) a to (42) c] corresponding to the joint members (43) [(43) a to (43) c] are connected. Then, the rating-specific information reading section (45) [(45) a to (45) c] outputs rating-specific information to the identification command circuit (48).

Then, for example, when the first treatment instrument (41) a is first detached from the hanger and hand-held, the picked-up signal is output from the detection circuit (50) a and is input to the latch circuit (63). The identification command circuit (48) includes the reading units (45),
Rating-specific information and type information are respectively input from (46), and the latch circuit (63) latches only the information corresponding to the first treatment instrument (41) a taken out of this information. , The working medium control section (56), the first treatment instrument (41)
a signal for setting the output state of the working medium supply circuit necessary for the operation of a, and a pick-up signal from the detection circuit (50) a accompanying the removal of the first treatment instrument (41) a,
It is also input to the priority holding circuit (57), and the priority holding circuit (57) outputs a priority signal only to the switch (58) a corresponding to the treatment instrument (41) a to open the switch (58) a. Make it open.

When the operation switch (64) is operated from this state by, for example, a hood operation, only the various working medium supply circuits that are in an operable state by the actuation signal being given to the working medium control section (56) are actuated, Is a mount (47) and a corresponding treatment instrument unit A via a switch (58) a,
The first treatment device (41) is provided via the flexible hose (65) a.
a, and the treatment instrument (41) a is activated. Then, in this state, the second and third therapeutic instruments (41) b and (41) c
Since the output state of the latch circuit (63) does not change even if the operator holds it, the output state of the identification command circuit (48) is maintained, and therefore the output state of the working medium from the working medium control section (56) is It is held during operation of the operation switch (64) and
Switch (58) by priority signal from priority holding circuit (57)
The open state of a is also maintained, and thus the second and third treatment instruments (41) b, (41) c do not operate in this state.

Further, in this state, when the first treatment device (41) a is hooked on the corresponding hanger (in this case, other treatment devices are hooked on the hanger), the priority holding circuit (5
The output of 7) disappears and the first switch (58) a is closed, and the identification command circuit (48), the latch circuit (63), and the priority holding circuit (57) are reset.

When replacing the treatment instrument (41) on the mount D with another treatment instrument such as an air turbine handpiece and replacing it with a micromotor handpiece, after removing the treatment instrument unit from the attachment D, another treatment instrument is removed. The support member (44) of the unit A is connected to the mounting base D. Then, the type information in the treatment instrument unit A is output to the identification command circuit (48), and the treatment instrument (41) is supported by the support member (4) from this state.
4) When it is removed and hand-held, a command signal is output from the identification command circuit (48) to the working medium control section (56). By operating the operation switch (64), the treatment instrument operates in the same manner as in the above embodiment.

Further, when another hand-held member having a different rating is connected to the joint member (43), for example, in the case of an air turbine handpiece, when another hand-held member having a different torque or rotational speed of the air turbine is connected, the other hand-held member is connected. The rating information of is output to the identification command circuit (48), and if the therapeutic instrument (41) is detached from the support member (44) and held by hand for treatment from this state, a command signal is activated from the identification command circuit (48). It is output to the medium control unit (56). And operation switch (64)
By operating the, the treatment instrument operates similarly to the above-mentioned embodiment.

It should be noted that FIG. 7 shows the case where the latch circuit (63) in the second embodiment is omitted and the identification command circuit (48) is latched by a priority signal obtained from the priority holding circuit (57). 3 shows the third embodiment, and its operation is similar to that of the embodiment shown in FIG.

Further, in any of the above-described embodiments, the treatment instrument unit A is a treatment instrument (20) in which a flexible hose (20) 'is led out backward, and the treatment instrument (20) is supported, and
An example is shown in which the end of the flexible hose (20) 'is connected so as to be able to supply a working medium, and a supporting member A'having an actuating signal element (23) that outputs a pick-up signal when the therapeutic instrument is held by hand. However, when the treatment device (20) is a treatment device for removing dental plaque and cleaning the teeth, as is well known, the flexible hose is supplied with pressurized air from the outside. Then, it is connected to a cleaning gas generation container that mixes an abrasive such as powder stored inside with pressurized air. Therefore, in this configuration, the cleaning gas generation container is connected to the mounting base.

Further, in the above embodiment, it goes without saying that an actuating signal element for generating a pick-up signal of the treatment instrument may be provided on the mounting base side.

EFFECTS OF THE INVENTION As described above, according to the present application, not only can the working medium supply circuit necessary for the operation of the therapeutic instrument be operated only by attaching the therapeutic instrument unit to the mounting base, but also the joint member is rated. Even when different hand-held members are connected, the supply of the working medium can be automatically controlled to a value suitable for the operation of the hand-held members, which is extremely convenient for use, and
Since the working medium supply circuit necessary for the operation of various treatment instruments is equipped in the treatment device body such as the dental unit, it is possible to use various treatment instruments of different ratings or types without changing the structure in the treatment device body. Further, according to the present application, when a plurality of various treatment instruments are connected to the treatment apparatus main body and any one treatment instrument is handheld, the treatment is performed based on the unique signal of the treatment instrument. Select only the working medium supply circuit necessary for operating the device, set it under suitable conditions, and operate the operation switch in this state to operate only the earliest treatment device held by hand Since the working medium supply circuit is shared, the configuration inside the treatment device can be simplified and only the earliest hand-held treatment device can be used with priority. Having a advantages such is convenient to be able to provide exchange to such.

[Brief description of drawings]

The drawing shows an embodiment of the present application, FIG. 1 is a plan view showing a state in which a treatment instrument unit is mounted on a mounting base and mounted on a treatment table, and FIG. 2 shows a state in which the treatment instrument unit is mounted on the mounting base. FIG. 3 is an enlarged vertical cross-sectional view, FIG. 3 is a rear view of a support member, FIG. 4 is a configuration diagram in the case where one treatment instrument is provided, and FIG. 5 is a plan view of a treatment table in which a plurality of treatment instrument units are provided. FIG. 6, FIG. 6 and FIG. 7 are configuration diagrams when a plurality of treatment instruments are provided. In the figure, (2) and (46) are type information reading sections, (12) and (4
9) is an actuation signal element, (20) and (41) are therapeutic devices, and (2
0) 'and (65) are flexible hoses, (21) and (43) are joint members, (22) and (42) are hand-held members, (23) and (45) are rating-specific information reading sections, ( 25) and (49) are identification command circuits, and (2
6) is a drive air supply circuit, (27) is a chip air supply circuit, (28) and (52) are water supply circuits, (29) and (53) are operating power supply circuits, and (30) and (54) are lights. Power supply circuit, (31) heating power supply circuit, (32), (56) working medium control unit, (36), (55) suction circuit, (38), (6
4) is an operation switch, (44) is a supporting member, (51) is an operating power supply circuit, (57) is a priority holding circuit, (58) is a switch, (63) is a latch circuit, A is a treatment instrument unit, B, D
Is a mount, and C and E are the main body of the treatment device.

Claims (8)

[Claims] 1. A hand-held treatment instrument which is detachably connected to a joint member and which has a rating information reading section for outputting rating information of the hand-held member at the time of connection and which is operated by a working medium. The therapeutic instrument unit is detachably connected to the working medium so that the working medium can be supplied, and a mounting base having a reading unit for outputting the type information of the connected therapeutic instrument unit is further provided. , Which has a plurality of different working medium supply circuits necessary for the operation of the operating medium, is selected by the identification command circuit described later by the operation signal from the operation switch, and operates the working medium supply circuit under the set conditions. Section, the rating information from the treatment instrument, and the type information of the treatment instrument unit from the mount are input to select the required working medium supply circuit, It is composed of a treatment apparatus main body such as a dental unit having an identification command circuit set under a condition suitable for operation of a tool, and is configured to supply a working medium from a mount to a treatment instrument unit. Dental treatment equipment. 2. A treatment instrument unit comprising a treatment instrument from which a flexible hose is drawn out, and a support member for supporting the treatment instrument and connecting the flexible hose so as to supply a working medium. Dental treatment device according to claim 1. 3. A therapeutic instrument is an air turbine handpiece,
A micromotor handpiece, a dental syringe or a dental suction tool, and the working medium supply circuit includes a drive air supply circuit, a chip air supply circuit, a water supply circuit, an operation power supply circuit, a lighting power supply circuit, Claim 1 comprising a warm power supply circuit and a suction circuit
The dental treatment device according to item 2 or item 2. 4. A treatment instrument unit connects a treatment instrument for cleaning teeth, which has led out a flexible hose, with the flexible hose, and receives supply of pressurized air to generate a cleaning gas body. The dental treatment apparatus according to claim 1, further comprising a generating container. 5. A hand-held treatment instrument which is detachably connected to a joint member and which is operated by a working medium having a rating-specific reading section for outputting rating information of the hand-held member at the time of connection. A plurality of treatment instrument units each of which is configured to support the treatment instrument and which is connected so as to be able to supply the working medium are detachably connected to the treatment instrument unit so as to be able to supply the working medium, and the connected treatment instruments. It is equipped with a mounting base having a reading section corresponding to each instrument unit that outputs the type information of the unit, and further has a plurality of different working medium supply circuits necessary for the operation of various treatment instruments, from the operation switch. Corresponding to each treatment instrument and a working medium control section that operates the working medium supply circuit under the set conditions selected by the identification command circuit to be described later by the operation signal of. When a priority holding circuit that preferentially holds only the earliest signal among the picked up signals generated by picking up the therapeutic instrument and the picked up signal or a priority signal from the priority holding circuit is input. A latch circuit that holds the output of an identification command circuit, which will be described later, input of rating information from the treatment instrument and type information of the treatment instrument unit from the mount, and a latch signal from the latch circuit to supply the required working medium. An identification command circuit for selecting a circuit and setting the selected supply circuit under conditions suitable for the operation of the treatment instrument corresponding to the priority signal, the state of which is latched; and the priority holding circuit. In response to the priority signal of the treatment device, a dental unit or the like equipped with a switch corresponding to each treatment device that allows the working medium to flow to the treatment device is treated. Dental treatment device configured from the apparatus main body. 6. A treatment instrument comprising a flexible hose led out,
The dental treatment apparatus according to claim 5, wherein the flexible hose is connected to a support member. 7. A therapeutic instrument is an air turbine handpiece,
A micromotor handpiece, a dental syringe or a dental suction tool, and the working medium supply circuit includes a pressurized air supply circuit, an operating power supply circuit, a lighting power supply circuit, a suction circuit, etc. Dental treatment device according to claim 5 or 6. 8. A treatment instrument unit, wherein one of the treatment instrument units is connected to the treatment instrument for cleaning a tooth from which a flexible hose is led out, and is supplied with pressurized air to generate a cleaning gas. The dental treatment apparatus according to claim 5, further comprising a container.