JPS607059Y2 - Sterile water supply device - Google Patents

Description

[Detailed explanation of the invention] This invention allows surgical personnel at a hospital, for example, to
This invention relates to a sterile water supply device used when washing hands.

For example, when performing a surgery in a hospital operating room, it is necessary to wash the hands of those involved in the surgery, the catheters used in the surgery, and the wound surface of the patient before the surgery.

Sterilized water that has killed bacteria is used for these cleanings.

Methods for producing this sterilized water include a method of distilling water and a method of exposing water to ultraviolet rays.

However, the former requires a device to boil water and a device to cool the boiled water, making the device large-scale, while the latter requires a device that weakens the ultraviolet rays due to the lifespan of the light source, or the penetration of ultraviolet rays due to water scale. There are drawbacks such as the fact that sterilization may not be completed completely due to poor sterilization.

Incidentally, in recent years, filter manufacturing technology has advanced and filters that do not allow bacteria to pass through have been developed.

Therefore, there is a method to create sterile water by interposing this filter in the middle of the waterway so that the bacteria in the water can be removed without being able to pass through the filter, and only the sterilized water can pass through the filter. The hands, catheters, etc. are washed with this sterile water.

However, with this method, when the water is flowing through the canal, bacteria do not pass through the filter, so sterile water can be produced, but when the water in the canal is stagnant, for example at night, the water exits from the filter. Bacteria breed in waterways.

In particular, the water outlet of a sterile water supply device usually has a shape similar to the tip of a watering can or shower with many holes in the tip, and bacteria can attach to the holes and cause the inside of the water to dry. It is easy to enter and breed.

Therefore, when the water is run again the next morning, the bacteria will be mixed into the water, making it impossible to obtain sterile water.

This idea was made in view of the above circumstances, and involves installing a water treatment device that does not allow bacteria to pass through the waterway, injecting a disinfectant into this water treatment device or the waterway, and placing the water outlet in a water storage tank. By making it possible to immerse the water in the water and maintain the state in which the disinfectant is injected into the water, the water can be sterile when the water in the canal is flowing, and the bacteria can be disinfected when the water in the canal is stagnant. It is an object of the present invention to provide a sterile water supply device capable of supplying sterile water by sterilizing it with a liquid.

An embodiment of this invention will be described below with reference to FIGS. 1 and 2.

1 is a water supply source, and 2 is a hot water supply source.

These water supply sources 1 and hot water sources 2 each have a manual valve 3.
, 4 to a mixing valve 5 via a connecting pipe.

This mixing valve 5 mixes water and hot water for 10 minutes.
The temperature of the water is between 40°C and 40°C, and the flow rate of the hot water can be adjusted.

A water treatment device 7 , that is, a filter 8 is connected to the mixing valve 5 via a solenoid valve 6 through a connecting pipe 9 .

This filter 8 has a filtration particle size of 0.3 to 0.4 (microns), and allows water to pass through it, but not bacteria.

Further, a solenoid valve 10 is provided at each fluid outlet of the filter 8.
．． Watering equipment through 11.

(Shower) 12.12 are connected by a connecting pipe 13, and these sprinklers 12.12 serve as an outlet section 14 for water.

A water reservoir support member 15 is attached to the pipe portion of the sprinkler equipment 12, 12.
．． 15 is mounted horizontally.

The water reservoir support member 15 is made up of two strips, and is attached to the water sprinkler 1
It is attached to the second tube part so as to sandwich the second tube part, and both ends thereof are hook-shaped.

Water reservoirs 16.16 in the form of wide-mouthed containers are removably attached to the water reservoir support members 15.15, respectively, so as to cover the lower part of the water sprinkler 12 from below.

There are many other ways to attach the water reservoir 16, 16, but any method is sufficient as long as it is easy to attach and detach.

The water reservoir 16 has an inner diameter that can cover the lower part of the water sprinkler 12 with a loose fit, and has two hanging members 17 on the upper part of the outer peripheral wall, each of which has hook-shaped ends.
．． 17 are rotatably attached to face each other, and the upper part of the hanging member 17.17 is attached to the water reservoir supporting member 1.
It is hung on a 5°15 hook.

Further, below the watering equipment 12.12, there is a water receptacle 18.
A drain pipe 19.19 is connected to the water receptacle 18.18.

Further, a disinfectant tank 20 is connected to an intermediate portion of the connecting pipe 9 between the solenoid valve 6 and the filter 8 via a pump 21 and a solenoid valve 22 by a branch pipe 23 .

The disinfectant tank 20 contains a disinfectant such as inverse soap (quaternary ammonium salt) or chlorhexidine.

This disinfectant is injected into the connecting pipe 9 by the pump 21 via the solenoid valve 22.

Note that a manual automatic switching control device (not shown) is connected to the solenoid valves 6, 10, 11, and 22.

This manual automatic switching control device is equipped with a timer (not shown) and a foot switch (not shown), and when the manual automatic switching control device is switched to the automatic operation state, the timer automatically switches the manual operation state to When you switch,
Each solenoid valve 6. 1
0. 11. 22 can be opened or closed, and at the same time, the pump 21 can be automatically activated or stopped.

Next, the operation of the sterile water supply device configured as described above will be explained.

When the sterile water supply device will not be used for a long time, such as at night, open the manual valves 3 and 4 in advance.
The water reservoir 16.16 is attached to the water reservoir support member 15.15, and in this state, the manual automatic switching control device is switched to automatic control, and the timer setting time is set to each predetermined solenoid valve 6,1.
0, 11, and 22 (as described later, all of the solenoid valves 6, 10, 11, and 22 open or close at the same time, and have the same valve opening time.

).

At this time, solenoid valve 6. 10. 11.22 is closed.

Therefore, water and hot water flow into the connecting pipes from the water supply source 1 and the hot water supply source 2, pass through the manual valves 3 and 4, respectively, and flow into the mixing valve 5.

These water and hot water are mixed in the mixing valve 5 to approximately lO
The water becomes hot water at a temperature of .degree. C. to 40.degree. C., flows out from the mixing valve 5, reaches the electromagnetic valve 6, and is stopped there.

After that, when the time set by the timer comes, the solenoid valves 6, 10, 11.22 open simultaneously, and
At the same time, the pump 21 is activated.

Therefore, ice and hot water from the water supply source 1 and the hot water supply source 2 flow into the mixing valve 5 via the manual valves 3 and 4, respectively, and are mixed therein, becoming hot water of 1000 to 40° C. and flowing into the filter 8.

At the same time, disinfectant is also injected from the disinfectant tank 20 into the connecting pipe 9 by the pump 21 via the branch pipe 23 and the solenoid valve 22.

The injection amount of this disinfectant is set to a concentration that provides a sufficient sterilizing effect.

The disinfectant solution injected into the connecting pipe 9 flows into the filter 8 together with the hot water flowing through the connecting pipe 9.

The hot water that flows into the filter 8 may be contaminated with bacteria, but these bacteria cannot pass through the filter 8, and only the hot water and the above-mentioned disinfectant can pass through the filter 8. The warm water from which these bacteria have been removed and the disinfectant solution are mixed and flowed out from the fluid outlet of the filter 8.

The hot water mixed with the disinfectant further flows out from the water sprinkler 12.12 through the connecting pipe 13 and the solenoid valves 10 and 11, respectively, and overflows into the water reservoir 16.16. The receiver is connected to the drain pipe 1 through the vessel 18.18.
It will be drained from 9.19.

When the pump 21 is activated and the respective electromagnetic valves 6 and 1
0.11.22 The time set by the timer above (this varies depending on the length of the pipe, but is usually considered to be about 5 minutes, and during this time the connecting pipe is filled with water, hot water, disinfectant, or disinfectant). When the time (mixed hot water, etc. is filled) has elapsed, this timer operates and the pump 21 automatically stops, and at the same time, the respective solenoid valves 6, 10, 11, and 22 also close.

After that, it is left in this state for a long time.

However, even if left as is for a long time, the connecting pipe from the outlet of the filter 8 to the watering device 12.12 will be filled with water mixed with disinfectant, and the watering device 12.
Since the water reservoir 16.16 is immersed in water mixed with the disinfectant, the bacteria are killed by the disinfectant and do not multiply.

After a long period of time has elapsed as described above, for example, the next morning, the water reservoirs 16, 16 are removed from the water reservoir support member 15.15,
When the manual/automatic switching control device is switched to manual and the foot switch is stepped on, sterilized water immediately comes out from the sprinkler device 12.12.

If you wish to switch to manual operation instead of automatic operation from the beginning, you can switch the manual automatic switching control device to manual and step on the foot switch to start sterilized water from the watering equipment 12.12 at any time.

Also, if you step on the foot switch again after that, the sterilized water will stop flowing.

In the above embodiment, the disinfectant water is injected into the connecting pipe 9, but the present invention is not limited to this, and the disinfectant solution may be injected into another waterway or the filter 8.

In addition, this disinfectant can be injected without using the pump 21.
Instead of the pump 21, an ejector (not shown) may be provided in the waterway to suck the disinfectant and inject it into the waterway.

Next, another embodiment of the present invention will be described based on FIGS. 3 and 4.

In this embodiment, the same components as those in the above embodiment are denoted by the same reference numerals, and the explanation thereof will be omitted.

In the sterile water supply device of this embodiment, the water treatment device 7 is a reverse osmosis water treatment device 34 consisting of a reverse osmosis device 31, a treated water tank 32, and a pump 33 instead of the filter of the above embodiment.
and a branch pipe 23 and a solenoid valve 22 in the treated water tank 32.
, a disinfectant tank 20 is connected via a pump 21.

The reverse osmosis device 31 includes a pretreatment filter 35, a high pressure pump 36, and a reverse osmosis membrane 37, as shown in FIG.

When using the sterile water supply device of this embodiment, the manual automatic switching control device is switched to automatic, and the timer is set in the same manner as in the above embodiment.

When the time set by this timer comes, each electromagnetic valve 6, 10, 11, 22 opens and the pump 21 operates.

The hot water that has passed through the solenoid valve 6 first enters the pretreatment filter 35 .

This pre-treatment filter 35 removes excessive turbidity that may damage the high-pressure pump 36 and reverse osmosis membrane 37.
It is further led to a high pressure pump 36, pressurized by this high pressure pump 36, and sent to a reverse osmosis membrane 37.

Here, bacteria cannot pass through and are removed from the drainage channel 38, and therefore only water molecules are allowed to pass through, becoming sterile hot water and temporarily stored in the treated water tank 32.

At this time, a disinfectant flows into the treated water tank 32 from the disinfectant tank 20, and the disinfectant and sterile hot water are pumped together by the pump 33 and sent to the watering device 12 via the solenoid valves 10 and 11.
．． Sent to 12th.

Since the subsequent embodiment is similar to the previous embodiment, the explanation thereof will be omitted.

In this embodiment, the disinfectant solution is injected into the treated water tank 32, but the present invention is not limited to this, and the disinfectant solution may be injected into other waterways or other parts of the water treatment device 7.

As explained above, this invention includes a water treatment device that does not allow bacteria to pass through the waterway, a device for injecting disinfectant into the water treatment device or the waterway, and an outlet for the water inside the water reservoir. Since the device is designed to be able to be immersed in water and maintain a state in which the disinfectant is injected into the water, bacteria can be removed by the water treatment device to make the water sterile.

In addition, when water in a waterway stagnates for a long time, disinfectant can be mixed into the water treatment equipment or the water in the waterway and water tank with the outlet part of the water immersed in the water in the water tank. As a result, bacteria in the water are killed, so bacteria do not propagate, and therefore, sterile water or sterile water can be used at any time, and hands, catheters, etc. can be disinfected at any time.

Moreover, its structure is simple, as it only requires a water treatment device installed in the waterway, a device for injecting disinfectant into the water treatment device or the waterway, and a water outlet that can be immersed in the water in the water reservoir. It is.

[Brief explanation of the drawings] Figures 1 and 2 show an embodiment of this invention.
Fig. 1 is a piping diagram, Fig. 2 is a partially cutaway sectional view showing the state in which a water reservoir is attached to a water sprinkler, and Figs. 3 and 4 show other embodiments of this invention. The figure is a piping diagram, No. 4
The figure is a system diagram. 7...Water treatment device, 8...Filter,
12...Water equipment, 14...Water outlet, 16...Water reservoir, 20...Disinfectant tank, 21... Pump, 33...Pump, 34...Reverse osmosis water treatment device.

Claims (1)

[Scope of utility model registration request] A water treatment device that does not allow bacteria to pass through the waterway is provided, and a device for injecting a disinfectant into the water treatment device or the waterway is provided, and a wide-mouthed container is provided at the water outlet so as to cover the outlet from below. A sterile water supply device characterized by a removably attached water reservoir.