JP3325734B2 - Dental extraoral vacuum device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dental extraoral vacuum device, and more particularly, to a dental treatment, such as saliva, blood, which is scattered from a patient's mouth during treatment and is floating near the patient's mouth. The present invention relates to a dental treatment extraoral vacuum device for sucking and exhausting dust such as cutting powder.

[0002]

2. Description of the Related Art Dental care rooms have a large number of outpatients,
If care is taken to effectively sterilize and disinfect the room, a large number of microorganisms may remain on the floor, on the surfaces of instruments and instruments, or in the air, etc. From the surgeon to the surgeon or from the surgeon to the patient. On the other hand, since various kinds of microorganisms inhabit the human oral cavity, there is a risk that secondary infection by the resident microorganisms may occur due to dental treatment, and recently, hospital infections caused by Staphylococcus aureus have occurred. Infection is gaining attention. Therefore, in dental treatment, it has recently been proposed to use a vacuum device to protect the surgeon from floating dust and bacteria, and to catch floating dust and bacteria leaking from the patient's mouth to the outside during medical treatment at the patient's mouth. ing.

FIG. 1 is a view for explaining an example of a vacuum apparatus incorporated in a dental treatment unit. As is well known, a dental unit 10 comprises a treatment chair 1, a work table 2, a spitton 3, and the like. Further, for example, various control valves are provided in the water supply / drainage box 4, and the control valves are controlled to open and close so as to vacuum (vacuum) suck, for example, dirt excreted in the spitons 3.

The dental unit 10 further includes an intake port 5, an arm for movably supporting the intake port 5, and an arm mechanism / exhaust also serving as an exhaust pipe for exhausting contaminated air taken in from the intake port 5. It has a pipe 6, a mounting member 7 for rotatably mounting the arm mechanism and exhaust pipe 6, and an exhaust duct 8 extending below the mounting member 7, and an end of the exhaust duct 8 is placed under the floor. Are connected to a solenoid valve which is controlled to be turned on / off in the piping box 9, and connected to a vacuum pump (not shown) via the solenoid valve.

[0005] In dental treatment, the treatment chair 1 is controlled to a treatment position (falling or sleeping position) and a gargle position (starting position), and the falling position and the starting position are set and stored according to the patient's height and the like. After that, each time the memory (and auto) switch is pressed, the tilt position and the starting position are automatically controlled.
Is also moved to the vicinity of the patient's mouth to suck and discharge dust such as cutting powder generated by dental treatment. When the treatment chair 1 is returned to the starting position, the air inlet 5 is first moved to a predetermined position (a position not hitting the patient).

As described above, in order to move the treatment chair 1 to the treatment position, the memory switch is pressed, and when the treatment chair 1 falls to a predetermined position, the operation of the treatment chair 1 is terminated, and then the intake port 5 is closed. Automatically starts moving, moves to a predetermined position near the patient's mouth, and stops. In this case, the method of determining the predetermined position is performed at the same time when the tilting position of the treatment chair 1 is determined. When the chair 1 and the intake port 5 are adjusted to predetermined positions in accordance with the height, body shape, etc. of the patient, and the memory setting switch is pressed in this state, the positions of the treatment chair 1 and the intake port 5 in the inverted position are stored. When the tilt memory switch for the treatment chair 1 is pressed, the intake port 5 is moved to a desired position near the oral cavity of the patient following the tilting operation of the treatment chair 1.

When the treatment chair 1 is set at the starting position (gargle position), the starting position of the treatment chair 1 and the position of the intake port 5 are set in the same manner. Is pressed, the intake port 5 is first moved to a desired starting position, and then the treatment chair 1 is raised. Reference numerals 11 and 12 denote piston cylinders provided at the joints of the support arm and the exhaust pipe 6. By operating these piston and cylinders 11 and 12, the arm mechanism and the exhaust pipe 6 are moved in the directions of arrows A and B. Thereby, the intake port 5 can be moved to a desired position in conjunction with the movement of the treatment chair 1. In order to store the position of the intake port 5, the piston / cylinder 11,
The movement positions of the twelve pistons may be stored, and by storing and setting the positions, the pistons can be automatically moved to this position thereafter.

[0008] Basically, the air inlet 5 may be moved between two positions in accordance with the raising and lowering of the treatment chair 1. However, when the surgeon performs processing and adjustment of the denture, the operator needs to draw it closer to the hand. I want to use. For this reason, the arm mechanism and exhaust pipe 6 of the intake port 5 is attached to the support member 7 so as to be rotatable in the direction of arrow C, whereby the operator can be drawn to the operator's hand by manual operation, and processing work can be performed. After the termination, the patient is returned to the vicinity of the patient's mouth again by manual operation. In this case or in other cases, it may be desired to adjust the direction of the intake port 5 to a desired direction. In consideration of such a case, the mounting portion 6a of the intake port 5 is fixed with a flexible tube or the like. The flexible tube 6a is used to direct the intake port 5 in a desired direction.
May be attached to the end of the arm mechanism / exhaust pipe 6 using a universal joint.

After the suction port 5 is positioned near the patient's mouth as described above, the suction / exhaust operation starts, and the suction port 5 sucks / contaminates the contaminated air mixed with the sewage liquid, cutting powder and the like scattered during the treatment. The suction / discharge operation is performed according to the piping box 9.
This is done by turning on and off the solenoid valve inside. However, if the on / off control of the solenoid valve is performed using a switch dedicated to the on / off control, the operation becomes troublesome and the work efficiency is reduced.

Therefore, the present applicant has previously proposed that the suction operation of the intake port 5 (ON / OFF operation of the solenoid valve) is performed by turning the instrument ON / OFF. That is,
In dental treatment, various instruments such as a micro engine, an air turbine, a scaler, and a syringe are used. These instruments are provided with a switch for driving and stopping the instruments. Or controlled by a foot switch. Therefore, if the intake operation of the intake port 5 is controlled by these switches, the intake operation is always performed during the work, and it is necessary to provide a special switch for the intake operation and to operate the intake operation. And can be performed efficiently and economically.

[0011]

As described above, in the dental unit previously proposed by the present applicant, the extraoral vacuum device automatically operates when the instrument is turned on and off, so that it is very convenient to use. However, if the instrument operation switch is turned off when the intake is stopped, the intake operation is also stopped at the same time as the off operation, and contaminated air and water droplets in the exhaust pipe are completely discharged. However, the bacteria still remained in the exhaust pipe 6, and germs propagated in the exhaust pipe, resulting in unsanitary condition. The present invention
When the operation switch of the dental instrument is turned off, the operation of the instrument is stopped, and after a predetermined time has elapsed, the exhaust operation from the intake port is stopped when the operation switch of the dental instrument is turned off. The purpose is to prevent germs and water droplets from staying in the exhaust pipe.

[0012]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an intake port movably disposed near a patient's mouth, and an arm mechanism and exhaust pipe movably supporting the intake port. Having a suction operation of the suction port, the start of the dental treatment instrument, start the suction in conjunction with the stop, in a dental extraoral vacuum device to stop, stop the suction operation of the suction port, It is characterized in that the dental treatment instrument is performed after a lapse of a predetermined time after stopping.

[0013]

In the dental unit in which the extra-oral vacuum device is operated in conjunction with the turning on and off of the dental instrument, the extra-oral vacuum device is stopped after a lapse of a predetermined time when the instrument is off. Thus, germs, water droplets, and the like did not remain in the exhaust pipe.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As described above, the present invention relates to starting and stopping of an extraoral vacuum device (specifically, turning on / off a solenoid valve in a piping box 9) by driving a dental treatment instrument. In the dental treatment unit that is linked to the stop, when the instrument for dental treatment is stopped, the electromagnetic valve for exhaust is turned off after a lapse of a predetermined time from the stop of the instrument. Tube 6
No contaminated air or water droplets remain inside. Since the delay of the predetermined time can be achieved by using a well-known electric delay circuit, a detailed description thereof will be omitted.

[0015]

As is apparent from the above description, according to the present invention, in a dental unit for operating an extraoral vacuum device in conjunction with turning on / off a dental instrument, the instrument comprises: When the device is turned off, after the elapse of a predetermined time, the extraoral vacuum device is stopped, so that no germs or water droplets remain in the exhaust pipe, and a hygienic dental treatment can be performed.

[Brief description of the drawings]

FIG. 1 is a schematic overall configuration diagram for explaining an example of a dental treatment unit to which the present invention is applied.

[Explanation of symbols]

1 ... treatment chair, 2 ... work table, 3 ... spitton,
4 ... water supply / drain box, 5 ... intake port, 6 ... support arm mechanism and exhaust pipe, 7 ... arm support member, 8 ... exhaust duct, 9 ...
Piping box, 10: dental unit, 11, 12: piston and cylinder.

Claims (1)

(57) [Claims] 1. An air intake port movably arranged near a patient's mouth, and an arm mechanism and an exhaust pipe movably supporting the air intake port. In a dental extraoral vacuum device that starts and stops inhalation in conjunction with start and stop of an instrument, the inhalation operation of the inhalation port is stopped after a lapse of a predetermined time after the stoppage of the instrument for dental treatment. An extra-oral dental vacuum apparatus characterized in that it is made to be evacuated.