JPH069577B2 - Dental treatment equipment - Google Patents

Description

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

2. Description of the Related Art Conventional technology and its problems Conventionally, a flexible hose of a dental treatment instrument including an actuating portion that is actuated by supplying a working medium is attached to a treatment device body such as a dental unit, and the working medium is supplied from the device body. A dental treatment device configured to supply to a dental treatment device is known, and a treatment instrument including an operating portion that operates by receiving a supply of a working medium includes an air turbine that operates by receiving drive air, An air turbine handpiece including a jet port that receives chip air and water and sprays a cooling mist, and an optical conductor that guides a light beam that illuminates a treatment section to a tip, a cutting tool that receives electric power For example, a micromotor such as a low-impedance high-speed rotation motor or a high-impedance large-torque motor that rotates, and chip air and water are supplied to cool the treatment unit. A micromotor handpiece having an ejection port for ejecting a mist for rejection, a nozzle for supplying tip air and water, and a nozzle and a heating heater for selectively ejecting air, water, or mist by button operation. Provided triple syringe, built-in pulse oscillator, root canal length measuring instrument having a measuring needle that operates by receiving its output, ultrasonic oscillator, and operates by receiving its output, for example, low impedance magnetostrictive vibrator , A root canal cleaner or an ultrasonic scaler having an impedance circuit for an ultrasonic transducer composed of a high-impedance electrostrictive element or a light source for photopolymerization that emits light when supplied with operating power, and this light source There is known a dental photopolymerizer for irradiating a photopolymer material filled in a tooth defect portion or a perforated portion with a light beam from a portion to cure the same.

By the way, each of the above-mentioned treatment instruments is connected to a dedicated working medium supply circuit provided inside the treatment device main body through a flexible hose, so that when the treatment device main body is equipped with many treatment instruments, Means that many hoses will be pulled out from the main body of the treatment apparatus, and therefore, when the hoses are entangled and hinder the treatment work, or when such many treatment instruments are held on the treatment table, The weight of the treatment instrument and the flexible hose acts on the treatment table to exert an unbalanced weight on the table or to strengthen its mechanical structure, and the structure of the treatment apparatus main body is complicated. There was an inconvenience.

Objects and Examples and Actions Therefor, the first invention of the present application is configured such that a flexible hose can be commonly used for various kinds of treatment devices, and when a desired treatment device is selectively connected to a joint member during use. , The type or type of the connected treatment instrument is read as the resistance or impedance of the electric circuit element built in the treatment instrument as a unique signal element of the treatment instrument, and the read signal is guided to the treatment apparatus main body side, and the treatment apparatus main body is read. Of the various working medium supply circuits equipped in the, only the working medium supply circuit necessary for operating the treatment instrument is configured to operate under optimum conditions, and the detection signal in the flexible hose is The signal circuit and the operating power supply circuit are made common by providing a switching means, and the second invention of the present application is to pre-treat the working medium supply circuit required for various therapeutic instruments in advance. While equipping the main body of the device, a common working medium output joint member is provided for this, and at the time of use, a connecting member provided at the rear end of a dedicated flexible hose provided for a treatment instrument is selectively used as the joint member. When connected, the detection signal is sent to the main body of the treatment device through the detection means for detecting the resistance or impedance of the electric circuit element incorporated in the treatment device as a unique signal element of the treatment device. The above-mentioned inconveniences of the conventional ones have been solved by arranging so as to operate only the supply circuit of the working medium necessary for the operation of the treatment instrument among the various working medium circuits provided in the main body of the apparatus. It is a thing.

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

A shows a treatment device body such as a dental unit, and a flexible hose (1) is led out from a proper place on a side wall of the device body A,
A joint member (2) is equipped at the tip of the flexible hose (1). In the main body A of the treatment apparatus, the information of the hand-held devices B ₁ , B ₂ ... To be described later is read through the joint member (2), and what is that is identified to identify the desired medium to be described later. In addition to the identification command circuit (3) that selects the supply circuit and holds the selected state when the operation signal is input, it is also selected by the command signal from the identification command circuit (3) and is the optimum drive pressure. A drive air supply circuit (4) that sets the output of air, and is selected by the command signal, and is also selected by the command signal, and a chip air supply circuit (5) that sets the optimum output of pressurized air for the chip. And, a water supply circuit (6) for setting an optimum amount of water, and an operating power supply circuit (8) selected by the command signal and for setting required electric energy such as direct current, high frequency current or ultrasonic current And the built-in Chi working medium supply control unit which is controlled actuated by actuation signal from (15)
(9) and a switching circuit that connects the power supply path (10) normally installed in the flexible hose (1) to the identification command circuit (3) side and connects to the operating power supply circuit (8) side at the time of switching (11) is provided, and the pressurized air source (1) is provided in the pressurized air supply circuits (4) and (5).
2), the water supply circuit (6) has a water source (13), the operating power supply circuit (8), the light source power supply circuit (7) and the identification command circuit.
A power supply (14) is connected to each (3). (15) is an operation switch that operates by, for example, a foot operation to latch the operation of the identification command circuit (3), switches the switching circuit (11), and gives an operation signal to the working medium supply control section (9). Is.

The joint member (2) has a base (1) as shown in FIG.
The insertion barrel (17) is provided so as to project from the center of the front face of (6), and the fitting protrusion (19) having a small diameter is projected at the tip of this insertion barrel (17) via the inclined portion (18). It is made by installing the insertion shaft of this joint member (2).
On the outer peripheral surface of (17), the current-carrying path led from the identification command circuit (3) through the flexible hose (1) into the joint member (2).
Connecting pieces (21), (21) on a pair of rings that connect with (10)
And a circumferential groove (2) connected to the water passage (22) guided from the water supply circuit (6) through the flexible hose (1) into the joint member (2).
3) and the flexible hose (1) from the chip air supply circuit (5)
A flexible hose (from the drive air supply circuit (4) located in the inclined groove (18) and the circumferential groove (25) connected to the air supply passage (24) guided through the inside of the joint member B. 1) Fitting member through
An opening (27) communicating with the air supply passageway (26) guided inside (2)
And are arranged respectively.

B _{1 to} B ₅ are selectively rotatably and removably connected to the joint member (2), and an electric contact (which makes sliding contact with a connecting piece (21) provided on the joint member (2) at the time of connection ( 28) are shown respectively for hand tools of various therapeutic instruments provided with the hand tools B _{1 to} B
₅ Izure also open at the rear to the rear axial core portion of the shaft (29), fitting recess for Mitsuhama the insertion barrel (17) of said coupling member (2) (30)
And the fitting protrusion that is continuously provided at the front end of the fitting recess (30).
(19) and an insertion hole (31) for fitting are provided.

FIG. 2 shows a cross section of the main part of the hand-held device B ₁ in the air turbine handpiece that operates by receiving the supply of drive air, chip air and water. The shaft core part is provided in the shaft body (29) a. The ring-shaped connection to a light guide (32) that extends through to the tip of the air turbine handpiece and a light source body (33) such as a lamp provided at a position facing the rear end face of the light guide (32). Supplying pressurized air to the air turbine in the tip of the head in communication with the operating power passage (34) connected to the parts (21), (21) to supply operating power and the opening (27). A water passageway (36) that communicates with the drive air passageway (35) and the circumferential groove (23) and the circumferential groove (25) to supply water and chip air to the ejection port at the tip of the tip.
And a chip air passage (37) are provided respectively. Further, FIG. 3 (a) shows a cross section of a main part of the hand-held device B ₂ in the micromotor handpiece, and the ring-shaped connecting piece (21), (21) is provided in the shaft body (29) b. ) To supply operating power to the micromotor (38)
And the circumferential groove (23) and the circumferential groove (25) are respectively connected to each other to provide water passages (40) and tip air passageways (41) for supplying water and tip air, respectively, to the ejection port of the tip head portion, and the same figure is provided. (B) shows a cross section of a main part of the hand-held device B ₃ in the ultrasonic scaler. The ring-shaped connecting piece (2
Connect to 1) and (21) to operate the impedance circuit (42) for ultrasonic transducers, which is composed of a low-impedance magnetostrictive oscillator such as a ferrite scaler or a high-impedance electrostrictive oscillator such as a piezoscaler. An operating electric power passage (43) for supplying electric power and a water passage (44) communicating with the circumferential groove (23) for supplying water to the jet outlet of the tip head part are respectively provided, and FIG. The cross section of the main part of the hand-held device B ₄ in the syringe is shown in the shaft body (29) d.
3) and the circumferential groove (25), respectively, to the ejection nozzle at the tip,
A water passage (45) for supplying water and chip air, a tip air passage (46), and for heating air circulating in the air passage (46) connected to the ring-shaped connecting pieces (21), (21) Heater circuit
Each of the operating power passages (48) for supplying the operating power to (47) is provided, and FIG.
Fig. _{5 is} a cross-sectional view of the main part of Fig. ₅ , in which the shaft (29) is connected to the ring-shaped connecting pieces (21), (21) to supply electric power to the photopolymerization light source (49). (50) is provided.

Then, when using the air turbine handpiece,
Hand tool for air turbine handpiece B ₁ for joint member (2)
Connect. Then, through the joint member (2), the water supply circuit (6)
And the water passageway (36), the drive air supply circuit (4) and the drive air passageway (35), and the chip air supply circuit (5) and the chip air passageway (37), respectively, and a ring-shaped connecting piece (2
Identification command circuit (3) when the electrical contact (28) is pressed against 1) and (21)
Reads the electric resistance value or impedance of the light source body (33) as a unique signal source of the handheld device B ₁ , and identifies this identification command circuit.
The command signal from (3) selects the water supply circuit, the pressurized air supply circuits (4) and (5), and the operating power supply circuit (8) required for operating the air turbine handpiece, and the air turbine Set the amount of water, air pressure and electric power suitable for the operation of.

When the operation switch (15) is operated from this state, an operation signal is given from the operation switch (15) to the working medium supply control section (9), and among the circuits constituting the working medium supply control section (9). Water supply circuit required to operate the handpiece
(6), pressurized air supply circuit (4), (5) and operating power supply circuit
(8) are activated respectively, this state is the operation switch (1
The identification command circuit (3) is held by being latched by the signal of 5), and the switching circuit (11) is the identification command circuit.
The connection is switched from the (3) side to the operating power supply circuit (8) side.

Therefore, the flexible hose (1) and the joint member (2) are attached to the handholding tool B _1.
Drive air and water, which are respectively set to values suitable for the operation of the handpiece, are introduced via the air turbine, the air turbine is operated, mist is ejected from the head, and the cutting portion is illuminated, whereby the teeth are toothed. Cutting work such as is performed.

When using a micromotor handpiece,
Joint member (2) to the micromotor handpiece handheld device B ₂
Connect. Then, through the joint member (2), the water supply circuit
(6) and the water passage (40), the tip air supply circuit (5) and the tip air passage (41) communicate with each other, and the power passage (10) and the operating power passage (39) are electrically connected, and the identification command circuit (3) reads the electric resistance or impedance of the micro-motor (38) of the micromotor handpiece as a unique source of hand tool B _2, by a command signal from the identification command circuit (3) for the operation of the micromotor handpiece The required water supply circuit (6),
The tip air supply circuit (5) and the operating power supply circuit (8) are respectively selected, and the water amount, air pressure and power suitable for operating the handpiece are set.

When the operation switch (15) is operated from this state, an operation signal is given from the operation switch (15) to the working medium supply control section (9), and among the circuits constituting the working medium supply control section (9), Water supply circuit required to operate the handpiece
(6), chip air supply circuit (5) and operating power supply circuit (8)
Are activated respectively, this operating state is
The identification command circuit (3) is held by being latched by the signal from 5), and the switching circuit (11) switches from the identification command circuit (3) side to the operating power supply circuit (8) side. Therefore, the water, the tip air, and the operating power set to the values suitable for the operation of the handpiece are guided to the handholding tool B ₂ via the flexible hose (1) and the joint member (2), and the micromotor operates. At the same time, a fog is ejected from the head, which causes cutting work such as teeth.

When using the ultrasonic scaler, the ultrasonic scaler hand-held device B ₃ is connected to the joint member (2). Then the joint member
The water supply circuit (6) and the water passageway (44) communicate with each other through the (2), the energization path (10) and the operating power supply passageway (43) communicate with each other, and the identification command circuit (3) is a hand tool. The impedance of the ultrasonic oscillator impedance circuit (42) is read as a unique signal source of B _{4, and} the water supply circuit (6) and the water supply circuit (6) necessary for the operation of the ultrasonic scaler are generated by the command signal from this identification command circuit (3). Each of the operating power supply circuits (8) is selected, and the amount of water and the power suitable for operating the ultrasonic scaler are set.

When the operation switch (15) is operated from this state, an output signal is given from the operation switch (15) to the working medium supply control section (9), and the scaler of the circuits constituting the working medium supply control section (9) is The water supply circuit (6) and the operating power supply circuit (8) necessary for the operation of each of them operate, and this operating state is identified by the signal from the operation switch (15).
(3) is held by being latched, and the switching circuit (11) operates from the identification command circuit (3) side to the operating power supply circuit.
Switch to (8) side. Thus water and operating power which is adjusted to a suitable value for operation of the scaler is led through a flexible hose to a hand-held device B ₃ (1) and the joint member (2), the scaler tip is vibrated, its Water is supplied to the tip to remove plaque and the like.

When a syringe is used, the syringe holder B ₄ is connected to the joint member (2). Then, the water supply circuit (6) and the water passage (45), the chip air supply circuit (5) and the chip air passage (46) communicate with each other through the joint member (2), and the energization path (10)
And the operating power passage (48) are electrically connected, the identification command circuit (3) reads the electric resistance or impedance of the heater (47) for heating as a unique signal source of the handheld device B ₄ , and this identification command circuit
A water supply circuit (6) necessary for operating the syringe by a command signal from (3), a tip air supply circuit (5) and an operating power supply circuit (8), respectively, are selected, and a suitable amount of water for operating the syringe, Set to air pressure and power.

When the operation switch (15) is operated from this state, an operation signal is given from the operation switch (15) to the operation medium supply control unit (9), and among the circuits constituting the operation medium supply control unit (9). Water supply circuit (6) required for operation of the syringe,
The chip air supply circuit (5) and the operating power supply circuit (8) respectively operate, and this state is held by being latched by the signal of the operation switch (15), and the switching circuit
In (11), the operating power supply circuit from the identification command circuit (3) side
The connection is switched to the (8) side. Therefore, water, tip air, and operating power set to values suitable for the operation of the syringe are guided to the hand tool B ₂ via the flexible hose (1) and the joint member (2), and are applied from the head nozzle. Pressurized air, warm water or mist is jetted out, whereby the tooth cleaning work is performed.

When a photopolymerizer is used, the photopolymerizer handhold B ₅ is connected to the joint member (2). Then, the energizing path (10) and the operating power path (50) communicate with each other, and the identification command circuit (3) reads and identifies the electrical resistance or impedance of the photopolymerization light source (49) as a unique signal source of the handheld device B _3. The operation power supply circuit (8) required for the operation of the photopolymerizer is selected by the command signal from the command circuit (3), and the electric power suitable for the operation of the photopolymerizer is set.

When the operation switch (15) is operated from this state, an output signal is given from the operation switch (15) to the working medium supply control unit (9), and the output signal is given to the working medium supply control unit (9). Operation power supply circuit required for operation of photopolymerizer
(8) operates, this state is held by the identification command circuit (3) being latched by the signal from the operation switch (15), and the switching circuit (11) is the identification command circuit.
Switch from (3) side to operating power supply circuit (8) side. Therefore in operating power to the hand-held device B ₅ is guided is irradiated onto the photopolymerizable material rays than is energized tip head photopolymerization light source is filled into the defect or perforation of the tooth, which is cured.

By the way, according to the above-mentioned embodiment, in the flexible hose (1), in addition to the energization path (10) communicating with the electric power actuating part, the water passages (22) necessary for the various hand tools B _{1 to} B ₅ are provided. ), Air supply line (24), (2
6) with flexible hose (1) with all of them, even though the handhold doesn't need all of them
Therefore, there is a possibility that the weight of the flexible hose (1) may act on the hand held by hand and may impose a burden on the hand-held operation in the medical treatment work performed while holding the hand-held device.

Therefore, FIG. 4 shows another embodiment of the invention of the present application in which the above-mentioned fear is eliminated, and the point different from the above-mentioned first embodiment is that the side wall of the treatment apparatus main body A such as a dental unit is placed in various places. A joint member (51) corresponding to the joint member (2) in the first embodiment having an output section for outputting a working medium is provided, and the treatment instrument C [Ca to Ce] is attached to the hand-held member (52),
[(52) a to (52) e], and a flexible hose (53) [(53) dedicated to the rear end of the hose that is rotatably and detachably connected
a- (53) e] derived connecting member (54) [(54) a- (5)
4) e] and a connecting member which is attached to the rear end of the flexible hose (53) and is connected to the joint member (51) in a rotatable and detachable manner, that is, in FIG. 2 and FIG. ) To (d), a connecting member (55) [(55) a to (5) having the same structure as the rear end of the handholding tool B [Ba to Be] in the first embodiment.
5) e), the connecting members (55) a to (55) e are selectively connected to the joint member (51) at the time of use. This is similar to the case of the first embodiment.

In the above embodiment, a signal from the operation switch (15) was used to control the operation of the identification command circuit (3) and the switching circuit (11) together with the working medium supply control section (9). In FIG. 1, the hanger switch when the joint member (2) is detached from the hanger H shown by the phantom line in the same figure in the state where the handholding tool B is connected, or in FIG. It goes without saying that the identification command circuit (3) and the switching circuit (11) may be respectively operated by using a signal from the hanger switch when the hanger H is removed from the hanger indicated by a virtual line.

As described above, according to the present application, when the working medium supply circuit necessary for actuation of various therapeutic instruments is provided in the dental unit and the handheld device is connected to the joint member, it is built in the handheld device. Using the electric circuit element of the electric actuating part as a unique signal source,
Based on this unique signal source, only the necessary working medium supply circuit for activating the handholding device is selectively supplied under suitable conditions. Can be shared and connected to members,
Therefore, it is economical because there is no need to equip each treatment device with a flexible hose as before, and it is convenient for treatment work because there is no fear that the flexible hoses will get entangled with each other. There is no fear that an excessive unbalanced load will be applied to a treatment table or the like on which the instrument is placed, and according to the present application, when using a treatment instrument including a hand-held member, a connecting member, a flexible hose and a connecting member, Since a lightweight flexible hose having only a supply path of a working medium necessary for operating the treatment instrument can be used as the flexible hose, it is effective in operability of the treatment instrument for treatment work. Have

[Brief description of drawings]

The drawings show an embodiment of the present application, and FIG.
The figure is an explanatory view showing the relationship between the connecting member and the joint member of the air turbine handpiece, FIGS. 3 (a) to 3 (d) are longitudinal cross-sectional views of the main parts of the connecting member of various therapeutic instruments, and FIG. It is a whole block diagram which shows the Example of. In the figure, (1) and (53) are flexible hoses, (2) and (51) are joint members,
(3) is an identification command circuit, (4) is a drive air supply circuit, (5)
Is a chip air supply circuit, (6) is a water supply circuit, (8) is an operating power supply circuit, (9) is a working medium supply control unit, (11) is a switching circuit, (15) is an operation switch, and (28) is Electrical contacts, (32) optical conductors, (34), (39), (43), (48), (50) operating power passages,
(35) is a drive air passage, (36), (40), (44) and (45) are water passages, (37) and (41) are tip air passages, (38) is a micromotor, and (42) is impedance. Circuit, (47) heating heater circuit, (49) a light source for photopolymerization, (52) a handheld member, (55) a connecting member, A is a device body, B is a handheld device, and C is a therapeutic instrument. .

Claims (4)

[Claims] 1. An identification command circuit, which will be described later, having a plurality of working medium supply circuits including an operating power supply circuit necessary for operating each hand tool for a therapeutic instrument, and an operation signal from an operation switch. The working medium control unit that operates the working medium supply circuit selected by the above, and the resistance or impedance of the electric circuit element of the electric working unit provided in the hand-held device for various therapeutic instruments is read as a unique signal, and according to the read signal An identification command circuit for selecting a required working medium supply circuit, setting the circuit under suitable conditions, and holding a selected state of the working medium supply circuit by a signal from the operation switch or hanger switch; A switching circuit that switches the connection between the operating power supply circuit that constitutes the operating medium control circuit and the identification command by the signal from the operation switch or hanger switch. A treatment apparatus main body such as a dental unit comprising: a working fluid flow passage that is led out from the treatment apparatus main body and communicates with each of the working fluid supply circuits, and through the switching circuit in a normal state. A flexible hose in which an energizing circuit connected to the identification command signal circuit is installed, and a flexible hose attached to the tip of the flexible hose and communicating with each of the working fluid flow passages to send out working fluid, and the energizing circuit is also provided. A joint member having a reading section connected to the joint member, the joint member is detachably connected to the joint member, and has its own working medium passage and an electric actuating portion, and its own working fluid passage at the time of connection with the joint member. A dental treatment apparatus comprising: a plurality of hand tools for a treatment instrument, which allow a working medium to communicate with the treatment medium and apply a signal from the unique signal element to the reading unit. 2. The dental treatment apparatus according to claim 1, wherein the joint member and the handholding tool are connected in a rotatable and / or detachable manner. 3. A plurality of working medium supply circuits including an operating power supply circuit necessary for operating various treatment instruments are provided inside, and selected by an identification command circuit described later by an operation signal from an operation switch. The working medium supply control unit for operating the working medium supply circuit and the resistance or impedance of the electric circuit element of the electric operating unit provided in various treatment instruments are read as a unique signal, and a required working medium supply circuit is read according to the read signal. And an identification command circuit for setting the circuit under suitable conditions and holding a selection normal state of the working medium circuit by a signal of the operation switch or hanger switch, and a signal of the operation switch or hanger switch. A switching circuit for switching the connection between the operating power supply circuit and the identification command circuit in the operating medium supply control section, and the side wall at an appropriate place. And a treatment device main body such as a dental unit including a joint member that communicates with each of the working fluid supply circuits and sends out a working fluid, and that also includes a joint member that includes a reading unit that is connected to the switching circuit. Connecting a connecting member to a hand-held member provided with the electric actuating portion and its own working medium passage, and a connecting member detachably connected to the joint member to a dedicated flexible hose led out from a rear end thereof. A plurality of therapeutic instruments attached to the connecting member, and a working medium passage for supplying a working medium to the hand-held member through a passage built in the flexible hose;
Further, the dental treatment apparatus is configured such that the working medium is allowed to flow at the time of connection with the joint member and a signal from the unique signal element is given to the reading unit. 4. The dental treatment apparatus according to claim 3, wherein the joint member and the connecting member are connected in a rotatable and / or detachable manner.