JP2684488B2 - Dental clean water supply system - 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 clean water supply device, and more specifically, to reverse contamination of a supply pipe line which is mainly caused by back suction (pull-in) of clean water which occurs when water supply is stopped. The present invention relates to a dental clean water supply device that can be positively disinfected.

[0002]

2. Description of the Related Art Recently, dental clinics have been used for turbine drive,
We have adopted a system that obtains clean water used for cleaning and cleaning from the tap water. As an example thereof, a system is known in which tap water is directly purified by a dust / sterilization filter, or a system in which water is sterilized and further purified by a dust / sterilization filter. However, in these systems, the back suction of clean water occurs at the moment of stopping the water supply, saliva, blood,
Inhaled contaminated water etc., this saliva inhaled,
Bacteria in blood, contaminated water, etc. often reverse-contaminate the supply pipeline, turbine head, three-way syringe, etc.
As a cleaning device to eliminate such pollution, compressed air and water
The one in the form of Japanese Utility Model Publication No. 58-139126
Therefore, it is disclosed that this form does not
By using a structure in which water does not stay in the water circuit during use
I tried to prevent the colonization and growth of bacteria and provide a safe treatment.
Therefore, the structure is complicated, and even if there is no water,
There is a deficiency such as ineffectiveness against the bacteria that kill it .

[0003]

SUMMARY OF THE INVENTION The present invention solves the above problems.
And to provide a novel dental cleaning water supply apparatus devised so that solve.

[0004]

Dental cleaning water supply device according to the present invention in order to achieve the above object In order to achieve the above, obtained through decontamination dust removal filter provided on the side close to the dental care unit, cleaning A dental clean water supply device that supplies water to turbine heads, three-way syringes, etc. via a supply line .
There is tap water from the tap through the first on-off valve
Dental filter that receives water and sends it out through a filter
Equipped by the side of the medical treatment unit, T-shaped at the outlet of the filter
Connect the joints with their openings 8 and 9 facing up and down,
Connect the supply line to the downward opening 9 via the second on-off valve.
In addition, a converging pipe is connected to the upward opening 8
In the state where the opening and closing part of the pipe is provided and clean water can be supplied
When adding the disinfectant, close the first on-off valve and clean water.
After stopping the supply, open the second on-off valve to clean the supply line.
Makes it possible to dispose of purified water and open the opening / closing part of the confluence pipe
The clean water in the supply pipeline is discarded by
To make the inside of the downward opening hollow,
Consumption of the constant amount from the upward opening 8 to close the second on-off valve have
Inject the venom and store in the downward opening 9, and open after this storage.
Close the closing part to complete the disinfectant addition operation.
In the state, open the 1st on-off valve and the 2nd on-off valve, and supply
Perform the operation of discarding the clean water in the pipeline and add the disinfectant solution to the waste water.
After confirming that there is no residue, the patient is treated again .

[0005]

It is desirable to disinfect supply lines, which are always at risk of reverse contamination, as frequently or periodically as possible.
This disinfection is performed after medical treatment is stopped. The disinfecting liquid is put into the supply conduit from the confluence pipe, and the disinfecting liquid is conveyed toward the tip end by the flow of the clean water in the supply conduit, and the conveying disinfects the inside of the supply conduit. Then, inspect whether the disinfectant solution remains in the supply pipeline by smelling the clean water discharged from the tip of the supply pipeline, and confirm that there is no residual water before re-treatment. To serve.

[0006]

Dental cleaning water supply device according to the present invention is therefore in the configuration described above, the supply of the disinfectant, optionally form a disinfectant supply conduit by performing the conveyance of the liquid It is capable of completely sterilizing and disinfecting a reversely contaminated supply line , and it is also in use.
Even if there is no water, the water stays in the unused state.
Practical such as effective against aerobic bacteria that colonize and proliferate
It is effective.

[0007]

In the embodiment shown in the drawings, a filter 6 which receives tap water from a tap 1 through a first opening / closing valve 2 into an inlet 3 and sends out through a disposable type filter 4 from an outlet 5 is shown.
Installed in a storage case (not shown) on the side of the dental treatment unit 20 and connected to the outlet 5 of the filter 6 with a T-shaped joint 7 with its openings 8 and 9 oriented vertically. Then, the supply pipe line 11 is connected to the downward opening 9 through the second opening / closing valve 10, the short metal joining pipe 12 is provided at the upward opening 8, and the third opening / closing valve 13 is provided at the upper end of the joining pipe 12. Inlet hole 1 of this third on-off valve 13
4, the plug 15 is detachably attached. The filter 4 has a large effective membrane area of 2.7 m ² , a large filtration flow rate, a long filtration life, and a significantly low treatment cost of 0.03 μm microporous hollow membrane (EHF) sterile water production. Is a microfiltration filter for use. Incidentally, the effective film area of the conventional filter was 0.3 m ² .

In this embodiment, when the disinfectant solution is supplied in a state where the clean water can be supplied (see FIG. 1), the first opening / closing valve 2 is first closed to stop the supply of the clean water, and then the second The on-off valve 10 is opened so that the clean water in the supply pipeline 11 can be discarded, and the plug 15 is removed to remove the third on-off valve 13.
Is opened, and the clean water in the supply pipe line 11 is slightly discarded to make the inside of the downward opening 9 hollow (see FIG. 2).
In this hollow state, the second on-off valve 10 is closed (see FIG. 3), and then a fixed amount of the disinfectant solution is injected through the upward opening 8 and stored in the downward opening 9, and then the third on-off valve 13 is provided.
Then, the stopper 15 is closed to complete the operation of adding the disinfectant solution. In this completed state, the first on-off valve 2 and the second on-off valve 10 are opened, the operation of discarding the clean water in the supply pipeline 11 is performed for a predetermined time, and it is confirmed that no disinfectant solution remains in the waste water. It is designed to be used again after receiving medical treatment.

In the figure, reference numeral 17 is a drain, and 18 is a filter 4.
A case of the filter 6 having a structure capable of arbitrarily exchanging the above is shown, and 19 is a packing.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing an embodiment of the present invention.

FIG. 2 is a schematic diagram showing the same when a hollow state is formed.

FIG. 3 is a schematic view showing a state of injecting a disinfecting solution.

FIG. 4 is a schematic view showing the same during disinfection.

[Explanation of symbols]

 1 Water 2 First on-off valve 3 Inlet 4 Filter 5 Outlet 6 Filter 7 Joint 8 Opening 9 Opening 10 Second on-off valve 11 Supply pipe 12 Confluence pipe 13 Third on-off valve 14 Inlet hole 15 Plug 17 Drain 18 Case 19 packing 20 units

Claims (1)

(57) [Claims] 1. Clean dental water supplied to a turbine head, a three-way syringe, etc., through a supply pipe, through which clean water obtained through a sterilization / dust removal filter provided near the dental treatment unit is supplied. It is a supply device and tap water from tap water
Water is received at the inlet via the first on-off valve and exits via the filter.
Equipped with a filter sent from the side of the dental treatment unit
Then, install a T-shaped joint at the outlet of the filter so that its openings 8 and 9 are upward.
The second on-off valve is connected to the downward opening 9 by connecting in the downward direction.
Connect the supply pipe line through and join the upward opening 8.
The pipe is provided with an opening / closing part of the confluence pipe, and clean water is
When adding the disinfectant solution when it can be supplied,
After closing the 1 on-off valve and stopping the supply of clean water, the 2nd on-off valve
Open to make it possible to dispose of clean water in the supply line.
And supply by opening the opening / closing part of the merging pipe
The clean water in the pipeline is discarded and the downward opening is hollow.
State, and after closing the second on-off valve in this hollow state,
A fixed amount of disinfectant is injected through the upward opening 8 and the downward opening 9
Store inside, and after closing, close the opening and closing part and put the disinfectant solution.
After the operation is completed, the first on-off valve and the
And the second on-off valve are opened, and the operation of discarding clean water in the supply pipeline is performed.
Check that there is no disinfectant remaining in the waste water.
The dental clean water supply device is characterized in that it is re-treated .