JP6824093B2 - Dental unit - Google Patents

Description

The present invention relates to a dental unit, particularly to a dental unit including a cleaning circuit for cleaning the water supply circuit.

The dental unit is a unit equipped with various equipment used for dental treatment and the like, and is provided with a patient chair on which a patient sits. Around it, a doctor unit where various instruments for dental treatment used by the practitioner are placed, an assistant hanger, a water supply unit that supplies gargle water to the patient, a spitton for draining this, and the patient's It is equipped with dental lighting that illuminates the oral cavity.

As described above, the dental unit is provided with a water supply circuit for a water supply unit and a handpiece. From the viewpoint of hygiene, the water supply circuit is preferably cleaned in the pipes constituting the water supply circuit, and for that purpose, a cleaning circuit is added to the water supply circuit as in Non-Patent Document 1, for example. ..

Such a cleaning circuit is installed in parallel with the water supply circuit, and the valve operated by the operation of the operation panel is switched so that the cleaning agent can flow through the water supply circuit and fill the pipe. Has been done. When the cleaning is completed, the valve operated by the operation of the operation panel is switched, water flows through the water supply circuit, the cleaning agent is rinsed and discharged, and water can be supplied to the water supply unit and the handpiece again.

Internet Information, Morita Co., Ltd., Home Space Line HP, Hygiene, Water Supply Pipeline Clean System, Operation Panel, "http://www.dental-plaza.com/article/emcia_type3_up/feature2.html", March 2017 31st search

Such a cleaning circuit is configured so that the inflow and rinsing of the cleaning agent can be centrally managed with only one operation panel in order to avoid complication of operation and enhance convenience. However, for this reason, there is a growing concern about erroneous operation, and it is necessary to devise from the viewpoint of preventing erroneous operation. If there is an erroneous operation, the cleaning agent may be supplied to the patient through the water supply unit or the handpiece, and such a situation must be avoided.

Therefore, in view of the above problems, it is an object of the present invention to provide a dental unit provided with a cleaning circuit that is unlikely to cause erroneous operation.

Hereinafter, the present invention will be described. Reference numerals of the accompanying drawings are added in parentheses to facilitate understanding of the present invention, but the present invention is not limited to the illustrated form.

One aspect of the present invention is a dental unit (1) including a water supply circuit, which is connected to the water supply circuit and includes a cleaning circuit (10) which is a circuit for cleaning the inside of the water supply circuit. , The cleaning liquid container (11) in which the cleaning liquid is stored, the three-way valve (12) that manually switches between flowing the cleaning liquid through the water supply circuit and the water supply circuit, and the three-way valve switching, the cleaning liquid to the water supply circuit. It has an inflow start switch (18) and an operation panel (15) including a water inflow start switch (19) to the water supply circuit, and the operation panel is a knob that switches a three-way valve by rotation or movement. (16), a switch for starting the inflow of cleaning liquid into the water supply circuit, and a means (17) for concealing the other when one of the switches for starting the inflow of water into the water supply circuit is exposed. It is a dental unit.

In the dental unit (10), the knob (16) of the operation panel (15) is configured to rotate, and the axis of rotation may be coaxial with the axis of rotation of the three-way valve (12).

According to the dental unit of the present invention, it is possible to prevent erroneous operation of the cleaning circuit and more reliably prevent the cleaning agent from being erroneously supplied to the patient.

It is an external perspective view of the dental unit 1. It is a figure explaining the cleaning circuit 10. FIG. 3A is a diagram showing one posture of the operation panel 15, and FIG. 3B is a diagram showing another posture of the operation panel 15. FIG. 4A is a diagram showing one posture of the operation panel 15', and FIG. 4B is a diagram showing another posture of the operation panel 15'.

Hereinafter, the present invention will be described based on the form shown in the drawings. However, the present invention is not limited to these forms.

FIG. 1 is an external view of the dental unit 1 according to one form, and FIG. 2 is a schematic view for explaining a cleaning circuit 10 included in the dental unit 1. As can be seen from FIGS. 1 and 2, the dental unit 1 includes a base 2, a patient chair 3, a dental lighting 4, a doctor unit 5, an assistant unit 6, a water supply circuit, an air circuit, and a cleaning circuit 10. There is.

The base 2 is arranged below the patient chair 3 and serves as a base for the patient chair 3. The base 2 has an outer shell formed by a housing, and various control devices are contained inside the housing. Examples of the control device included here include a hydraulic circuit for raising and lowering the patient chair 3 and tilting and standing up, and a hydraulic control means for controlling the hydraulic circuit. Therefore, a foot switch is provided on the back side of the patient chair 3 in the base 2. The practitioner can operate the foot switch and the operation switch of the operation panel 5d of the doctor unit 5 to issue a command to the hydraulic control means, and control the hydraulic circuit to raise and lower the patient chair 3 and to tilt it upright. it can.

As is known, the patient chair 3 is provided with a seating portion, a backrest, a headrest, a legrest, and a footrest, and is raised and lowered and tilted upright by a hydraulic circuit arranged on the base 2 as described above. It is configured to be able to.

The dental lighting 4 is attached via an arm that can be moved and rotated with a high degree of freedom by a universal joint or the like so that the oral cavity of the patient can be accurately illuminated when performing treatment. Therefore, by adjusting the position and angle of the dental lighting 4, the dental lighting 4 can be moved to a position where the practitioner can appropriately observe the inside of the patient's oral cavity.

The doctor unit 5 is provided on the side of the patient chair 3 on the side opposite to the assistant unit 6, and has a workbench 5a equipped with various instruments and switches required by the practitioner. .. The workbench 5a has a work surface 5b on its upper surface, and a handpiece group 5c used by the practitioner during the treatment is housed in a holder. Examples of the handpiece included in the handpiece group 5c include an air turbine, a micromotor, a scaler, and a syringe. An operation panel 5d may be provided on the workbench 5a, and various operation switches are arranged therein. For example, the patient chair 3 can be tilted upright, lifted and lowered, and the dental light 4 can be turned on and off. Etc. are possible.
The workbench 5a is supported by the arm 5e so that it can be moved and rotated, and the workbench 5a can also be moved and rotated according to the movement of the practitioner, which improves convenience. Has been done.

The assistant unit 6 is provided on the side of the patient chair 3 opposite to the side on which the doctor unit 5 is arranged, and includes an assistant hanger 7, a spitton 8, and a water supply unit 9.

The assistant hanger 7 is a portion provided with an instrument mainly used by the assistant. The assistant hanger 7 includes a hanger portion 7a and a hanger support 7b. A handpiece such as a vacuum, a saliva discharge tube, or a syringe is suspended on the hanger portion 7a. Then, such a hanger portion 7a is movably and rotatably supported by the hanger support column 7b.

The spitton 8 is used when the patient gargles with water supplied from the water supply unit 9 during or after the treatment to clean the oral cavity. Therefore, the spitton 8 has a pot shape because it discharges water in the oral cavity after gargling. Then, the saliva and water discharged to the spitton 8 are discharged through the drain trap in the water unit. Here, the spitton 8 is rotatable in a horizontal plane toward the front side of the patient. As a result, the spitton 8 can be placed in front of the patient, improving convenience.

The water supply unit 9 is a portion where water from the water supply source flows out, and is used when a patient gargles during or after treatment to clean the oral cavity.

As shown in part in FIG. 2, the water supply circuit is a water supply circuit including a pipe for supplying water from a water supply source to a water supply unit 9, a handpiece, or the like, and various devices. Examples of various devices provided here include valves, regulators, and the like, but known devices can be applied as needed.

As shown in part in FIG. 2, the air circuit is an air circuit including a pipe for supplying air (air) from an air supply source to each handpiece and various devices. Examples of various devices provided here include valves, regulators, and the like, but known devices can be applied as needed.

The cleaning circuit 10 is a circuit for cleaning the inside of the pipe of the water supply circuit, and is a circuit for filling the inside of the water supply circuit with a cleaning agent. FIG. 2 is a diagram conceptually showing the configuration of the cleaning circuit 10, and FIGS. 3A and 3B show an operation panel 15 provided in the cleaning circuit 10.
The cleaning circuit 10 includes a cleaning liquid container 11, a water supply circuit three-way valve 12, an air circuit three-way valve 13, a regulator 14, and an operation panel 15, which are connected by piping as necessary. The cleaning circuit 10 is arranged so as to be parallel to the water supply circuit and the air circuit.

The cleaning liquid container 11 is a container in which the cleaning liquid is stored. A lid is arranged so that the cleaning liquid container 11 can be sealed, and a pipe is passed through the lid portion. Specifically, the piping from the air circuit and the piping from the water supply circuit are passed through.
The piping from the air circuit opens at the upper part of the cleaning liquid container 11 and is arranged so as to supply air to the upper part of the cleaning liquid container 11.
The pipe from the water supply circuit extends to the lower part of the cleaning liquid container 11 and opens at the lower part, and is arranged so that the cleaning liquid can flow into the pipe from the lower part of the cleaning liquid container 11.

The type of cleaning liquid used is not particularly limited, and examples thereof include hydrogen peroxide solution, hypochlorous acid solution, and a surfactant.

The water supply circuit three-way valve 12 is a three-way valve arranged in the water supply circuit, and in this embodiment, a three-way valve that is manually switched is used. As a result, in combination with the features of the operation panel 15 described later, the structure is simple, the reliability is high, and erroneous operation can be prevented.
The water supply circuit three-way valve 12 is connected to a pipe from a water supply source, a pipe to a water supply unit 9 or a handpiece (sometimes referred to as "water supply unit 9 or the like"), and a pipe from a cleaning liquid container 11. Then, by this connection, a flow path flowing from the cleaning liquid container 11 to the water supply unit 9 or the like (may be described as "A1 connection") and a flow path flowing from the water supply source to the water supply unit 9 or the like (described as "B1 connection"). It may be possible to switch between.

The air circuit three-way valve 13 is a three-way valve arranged in the air circuit, and in this embodiment, an electromagnetic three-way valve is used for timer control for the purpose of pressurizing the cleaning liquid.

The regulator 14 is a regulator capable of adjusting the filling pressure of the cleaning liquid, and is intended to supply a fixed amount of cleaning liquid by controlling for a certain period of time by combining with the air circuit three-way valve 13. The regulator 14 is arranged on the air supply source side with respect to the air circuit three-way valve 13, and is also provided with a pressure gauge.

The operation panel 15 is an operation panel for operating the switching, cleaning start, and rinsing start of the water supply circuit three-way valve 12, and includes an operation knob 16, a concealing piece 17, a cleaning start switch 18, and a rinsing start switch 19. Has been done.

The operation knob 16 is a protrusion for the operator to pick and operate the knob, and in this embodiment, the operation knob 16 is rotated around the center of the knob for operation. In this embodiment, the axis of rotation is formed coaxially with the switching shaft of the water supply circuit three-way valve 12, and the rotation of the operation knob 16 is the switching operation of the water supply circuit three-way valve 12. As a result, the water supply circuit three-way valve 12 can be reliably switched with a simple structure.

The concealment piece 17 is a piece that protrudes from the operation knob 16 and rotates following the operation knob 16. Then, as can be seen from FIGS. 3A and 3B, the concealing piece 17 can be arranged so as to cover the cleaning start switch 18 or the rinse start switch 19 depending on the posture of the operation knob 16. , When one of the cleaning start switch 18 and the rinsing start switch 19 is exposed, the other is hidden from the operator.

The cleaning start switch 18 is a switch for starting cleaning of the water supply circuit. By pressing the switch 18, the air circuit three-way valve 13 is connected to A2, and air is supplied to the cleaning liquid container 11. As a result, as will be described later, the cleaning liquid is filled in the water supply circuit from the cleaning liquid container 11 and the inside of the pipe of the water supply circuit is cleaned.

The rinse start switch 19 is a switch that starts supplying water to the water supply circuit in order to rinse the water supply circuit filled with the cleaning liquid. By pressing this switch, water is supplied from the water supply source to the water supply unit 9 and the like in the B1 connected state. Is supplied. As a result, water is allowed to flow in the water supply circuit as described later, and the cleaning liquid is rinsed.

FIG. 4 shows a diagram for explaining the operation panel 15'related to the modified example. FIG. 4 (a) corresponds to FIG. 3 (a), and FIG. 4 (b) corresponds to FIG. 3 (b). The operation panel 15'has a form in which the concealing piece 17'is moved by linearly moving the operation knob 16' (moving in the left-right direction of the paper surface in this embodiment). Then, the movement to the operation knob 16'is the switching operation of the water supply circuit three-way valve 12.

As described above, according to the cleaning circuit 10, switching between cleaning and rinsing is performed on the operation panels 15 and 15', which has a very simple configuration and does not require electrical processing. Therefore, it is possible to switch with high reliability with a simple configuration.

In the dental unit 1 having the above configuration, for example, the water supply circuit is cleaned as follows.

When starting the cleaning of the water supply circuit, the operation knob 16 is rotated as shown by the arrow IIIa in FIG. 3A, and the operation panel 15 is in the posture shown in FIG. 3A. In this posture, the water supply circuit three-way valve 12 is connected to A1, the cleaning start switch 18 is exposed, and the rinsing start switch 19 is hidden by the concealing piece 17. Therefore, the operator has no choice but to press the cleaning start switch 18, and erroneous operation is prevented.
In this state, when the operator presses the cleaning start switch 18, the air circuit three-way valve 13 is connected to A2, and the air regulated by the regulator 14 is supplied from the air supply source. As a result, air is supplied to the cleaning liquid container 11 as shown by the dotted arrow A2 in FIG. Then, the cleaning liquid is pushed out from the cleaning liquid container 11, and the cleaning liquid is filled in the water supply unit 9 and the like as shown by the dotted arrow A1. As a result, the piping of the water supply circuit is filled with the cleaning liquid at the pressure adjusted by the regulator 14 to perform cleaning. The cleaning liquid is supplied by the timer function of the air circuit three-way valve 13 at a predetermined time specified by the timer.

After the cleaning liquid is filled in the piping of the water supply circuit in this way and a predetermined time has passed, this is rinsed. Therefore, when starting the rinsing of the water supply circuit, the operation knob 16 is rotated as shown by the arrow IIIb in FIG. 3 (b), and the operation panel 15 is in the posture shown in FIG. 3 (b). In this posture, the water supply circuit three-way valve 12 is connected to B1, the rinse start switch 19 is exposed, and the cleaning start switch 18 is hidden by the concealing piece 17. Therefore, the operator has no choice but to press the rinse start switch 19, and erroneous operation is prevented.
In this state, when the operator presses the rinse start switch 19, water is supplied from the water supply source to the water supply unit 9 and the like as shown by the solid arrow B1 in FIG. As a result, the cleaning liquid filled in the piping of the water supply circuit is washed away.

As described above, according to the operation panel 15, since there is no choice in the switch to be pressed, it is possible to surely prevent erroneous operation.

In the above embodiment, an example in which an air circuit is used as a means for pressurizing the cleaning liquid and causing it to flow out of the cleaning liquid container is shown, but the present invention is not limited to this, and a separate pump may be provided to pressurize the cleaning liquid. ..

1 Dental unit 2 Pedestal 3 Dental chair 4 Dental lighting 5 Doctor unit 6 Assistant unit 10 Cleaning circuit 11 Cleaning liquid container 12 Water supply circuit 3-way valve 13 Air circuit 3-way valve 14 Regulator 15 Operation panel 16 Operation picking 17 Concealment piece 18 Cleaning start Switch 19 Rinse start switch

Claims (2)

A dental unit with a water supply circuit
A cleaning circuit which is connected to the water supply circuit and is a circuit for cleaning the inside of the pipe of the water supply circuit is provided.
The cleaning circuit
A cleaning liquid container in which the cleaning liquid is stored and a cleaning liquid container
A three-way valve that manually switches between flowing cleaning liquid through the water supply circuit and flowing water through the water supply circuit.
It has an operation panel including a switch for switching the three-way valve, a switch for starting the inflow of the cleaning liquid into the water supply circuit, and a switch for starting the inflow of the water into the water supply circuit.
The operation panel
A knob that switches the three-way valve by rotation or movement,
When one of the switch for starting the inflow of the cleaning liquid into the water supply circuit and the switch for starting the inflow of the water into the water supply circuit is exposed, the other is concealed.
Dental unit. The dental unit according to claim 1, wherein the knob of the operation panel is configured to rotate, and the axis of rotation is coaxial with the axis of rotation of the three-way valve.

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