JPH03123531A - Sterilizer for medical equipment - Google Patents

Abstract

PURPOSE:To enable the adjusting to an optical setting state with a higher safety by providing an antiseptic solution tank to store an antiseptic solution and a chemical tank to store a chemical to be mixed into the antiseptic solution while a means is provided to adjust a mixing condition, concentration and the like. CONSTITUTION:A used endoscope is placed on an endscope carrier 3 and channels of the endoscope on the endoscope carrier 3 are connected to a channel connection port 21 through a washing tube. Then, processes of washing, sterilizing, irrigation and drying are performed automatically in sequence with the operation of a control switch on a control panel of a washing sterilizer body 1. With such an arrangement, it suffices to feed a concentrated antiseptic solution tank 9 with a concentrated antiseptic solution and an activating agent tank 10 with a chemical to be mixed into the antiseptic solution such as buffer agent separately beforehand and a mixing condition, concentration and the like can be adjusted to an optical setting state. This can simplify adjusting work for dilution, mixing and the like of the antiseptic solution and achieves a higher safety with the prevention of a worker from sucking vapor or the like of the antiseptic solution.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in a medical device disinfection device for cleaning medical devices such as endoscopes.

[Prior Art] Generally, after using a medical device such as an endoscope, it is necessary to clean and disinfect the medical device.

For example, Japanese Patent Laid-Open No. 59-14192 discloses a medical device disinfection device used for cleaning and disinfecting this type of medical equipment.
As shown in Publication No. 5, a cleaning disinfection tank is provided in which objects to be cleaned, such as endoscopes, are placed, and after the objects placed in the cleaning disinfection tank are cleaned with a cleaning solution, A structure is known in which the cleaning liquid is discharged and then the object to be cleaned is disinfected with a disinfectant solution.

In this case, a glutaraldehyde solution (hereinafter referred to as GA solution), for example, is widely used as a disinfectant. This GA solution is mixed with a mixed agent such as a liquid or powdered buffering agent, and is used in an activated state. At this time, when using a highly concentrated GA solution as the GA solution, it is diluted with about 3 to 5 g of clean water to the working concentration and then mixed with a buffering agent.

In addition, the GA solution is stable before mixing with the buffering agent,
Although it can be stored for a long period of time, the shelf life after mixing the buffering agent is generally about one week.

The same applies in many cases to other disinfectants.

[Problems to be Solved by the Invention] In the conventional configuration, preparation operations such as diluting the concentrated GA solution with clean water to a working concentration and mixing a buffering agent with the GA solution are performed manually by the operator. It was carried out by However, since a large amount of liquid is used in these preparation operations, the above operations must be divided and repeated multiple times.
There was a problem that required a lot of effort.

In addition, disinfectants are generally powerful chemicals, and accidents such as the disinfectant accidentally adhering to the skin of workers during preparation work such as diluting and mixing the disinfectant, or inhaling the vapor generated during the above operations may occur. There was a problem that could easily occur.

In addition, even if disinfectant is used repeatedly for disinfection, there is a problem with the expiry date of the disinfectant. For example, in the case of GA solution, new GA solution must be injected once a week, and There was a risk that the above problem would occur again and again.

This invention was made in view of the above-mentioned circumstances, and it is possible to simplify the preparation work such as diluting and mixing the disinfectant, and prevent the disinfectant from adhering to the skin of the worker during the preparation work of the disinfectant. It is an object of the present invention to provide a medical device sterilization device that can improve safety by preventing workers from inhaling steam generated during disinfectant preparation work.

[Means for Solving the Problems] The present invention provides a disinfectant tank for storing a disinfectant introduced into a disinfection tank and a drug tank for storing a drug mixed into the disinfectant, and also provides a tank for storing a disinfectant mixed in the disinfectant, and a tank for storing a disinfectant mixed in the disinfectant. A disinfectant solution preparation means is provided to adjust the mixing state, concentration, etc.

[Function] By simply injecting the disinfectant into the disinfectant tank and the drug mixed in with the disinfectant into the drug tank in advance, you can adjust the mixing state and concentration of the disinfectant and mixed chemicals to any settings. It has been made possible.

[Example] A first example of the present invention will be described below with reference to FIG. Figure 1 shows the general configuration of an endoscope washer/disinfector, which is a type of medical equipment. 1 is the washer/disinfector body, and 2 is the washer/disinfector tank disposed within the washer/disinfector body 1. It is. An endoscope mounting table 3 made of, for example, a wire mesh or the like is provided in the cleaning/disinfecting tank 2.

Further, the cleaning/disinfecting device main body 1 is provided with a water supply system conduit 4, a circulation conduit 5, and a drainage conduit 6, respectively. In this case, the water supply system pipe 4 is a pipe that supplies water from a water supply source 7, such as tap water, to the washing and disinfecting tank 2 via a water supply valve 8 formed by an electromagnetic valve. In the middle of this water supply system pipe 4, there is a concentrated disinfectant tank 9 that stores a disinfectant such as a concentrated GA solution, an activator tank (drug tank) 10 that stores mixed chemicals such as a buffering agent for the GA solution, detergent tank 11,
Each pipe line from the disinfectant recovery tank 12 is connected to a solenoid valve 13.
, 14, 15, and 16. The capacities of the concentrated disinfectant tank 9 and the activator tank 10 can be designed arbitrarily; for example, when increasing the interval between injections of disinfectant such as concentrated GA solution, the tank capacity can be increased. In order to downsize the entire device, the tank capacity may be set small.

Further, one end of the circulation pipe 5 is connected to a circulating water outlet of the cleaning and disinfecting tank 2 . Also, in the middle of this circulation pipe 5, a solenoid valve 1 is installed in order from the circulating water outlet side of the cleaning disinfection tank 2.
7. Washing pump 18. A switching valve 19 is interposed, and the other end of the circulation pipe 5 is branched via a circulation bow 19a of one switching valve, and one branch pipe 5a is connected to the injection nozzle 20, and the other end is branched through a circulation bow 19a of one switching valve. The branch pipe line 5b side of each is connected to the channel connection port 21, respectively. In this case, the injection nozzle 20 is installed inside the cleaning and disinfecting tank 2, and the channel connection port 21 is provided on the side wall of the cleaning and disinfecting tank 2. And this channel connection port 21
is connected to various channels of the endoscope placed on the endoscope mounting table 3 via cleaning tubes (not shown). Further, an air solenoid valve 22 is interposed in the middle of the branch pipe 5b side of the circulation pipe 5 connected to the channel connection port 21. Furthermore, this air solenoid valve 22
An air supply conduit 23 is connected to the air supply conduit 23, and an air pump 24 is interposed within this air supply conduit 23.

Further, the switching valve 19 is provided with an inflow boat 191n on the inflow side, the circulation boat 19a, the drainage boat 19b1, and the recovery boat 19c on the outflow side. One end of the drain pipe 6 is connected to the switching valve 1.
The other end of the drain pipe 6 is connected to an external drainage facility. Further, one end of a recovery pipe 25 is connected to the recovery boat 19c of the switching valve 19. This recovery pipe 2
The other end of 5 is connected to a disinfectant recovery tank 12 .

Note that 26 is a concentrated disinfectant inlet provided in the concentrated disinfectant tank 9, 27 is an activator inlet provided in the activator tank 10, and 28 is a heater installed in the cleaning and disinfecting tank 2. be.

Further, the cleaning/disinfecting device main body 1 is provided with a control section (not shown) formed of, for example, a microcomputer and its peripheral circuits. This control section includes a water supply valve 8,
Solenoid valves 13, 14, 15° 16.17, cleaning pump 18
．． A switching valve 19, an air solenoid valve 22, an air pump 24, a heater 28, and an operation panel (not shown), a display section, etc. are connected to each of them. Based on the input signal from this operation section, the control section controls the water supply valve 8, the solenoid valve 1B,
14, 15, 16, 17, cleaning pump 18° switching valve 1
9. The operations of the air solenoid valve 22, air pump 24, and heater 28 are controlled.

In this case, for example, based on the control signal from the control section, the inlet boat 191n of the switching valve 19 and each boat 191n on the outlet side
9a, 19b, and 19c can be selectively and appropriately switched. Further, disinfectant preparation data for adjusting the mixing state and concentration of the disinfectant and mixed chemicals based on the input signal from the operation unit is input in advance to this control unit, and the inside of the cleaning disinfection tank 2 is During disinfection work on endoscopes installed in Preparation operations are automatically performed.

Next, the operation of the above configuration will be explained.

First, before using the cleaning/disinfecting device main body 1, the user must use concentrated GA.
A concentrated disinfectant solution such as a liquid and a mixed agent such as a buffering agent for a GA solution are introduced into the concentrated disinfectant solution tank 9 from the respective injection ports 26 and 27.
and injected into the activator tank 10. and,
When using the cleaning/disinfecting device main body 1, a used endoscope is placed on the endoscope mounting table 3, and various channels of the endoscope on the endoscope mounting table 3 are connected to each other through cleaning tubes (not shown). It is connected to the channel connection port 21. Then, each process of cleaning, disinfection, rinsing, and drying is automatically and sequentially performed in accordance with the operation of an operation switch on the operation panel (not shown) of the cleaning and disinfecting device main body 1.

First, in the cleaning process, the water supply valve 8 is first opened, and water from the water supply source 7, such as tap water, is supplied to the cleaning and disinfection tank 2 side through the water supply system pipe line 4. When a certain amount of water is supplied, the water supply valve 8 is closed, and then the switching valve 19 is switched so that the inflow port 191n and the circulation boat 19a on the outflow side are communicated with each other, and the solenoid valve 17 Then, the cleaning pump 18 is turned on. As the cleaning pump 18 is driven, water in the cleaning/disinfecting tank 2 is supplied to the injection nozzle 20 and the channel connection port 21 via the circulation pipe 5, respectively. The cleaning water injected from the injection nozzle 20 is sprayed onto the endoscope on the endoscope mounting table 3, and the cleaning water supplied to the channel connection port 21 is passed through a cleaning tube (not shown) to the endoscope. are introduced into various channels of the endoscope to clean the endoscope. At this time, the cleaning water in the cleaning and disinfecting tank 2 is being circulated through the circulation pipe 5.

After washing for a certain period of time, the solenoid valve 15 is opened and the detergent in the detergent tank 11 is supplied into the washing water.

In this case, the detergent in the detergent tank 11 is a concentrated liquid, and is set to have an appropriate concentration when mixed in the washing water.

Furthermore, after an appropriate period of time has elapsed, the switching valve 19 is operated to establish communication between the inflow port 19in and the drainage boat 19b, and the cleaning water in the cleaning disinfection tank 2 is transferred through the drainage pipe line 6. The water is drained to the outside.

In the final stage of this cleaning process, the cleaning pump 18 is stopped, the air solenoid valve 22 is switched, and the air pump 24 is driven to remove the air supply pipe 23.
Air supplied through the channel connection port 21 is introduced into various channels of the endoscope via a cleaning tube (not shown), and the endoscope is drained.

Furthermore, after the cleaning process is completed, a disinfection process is subsequently performed. In this disinfection process, the solenoid valve 13 is opened for a certain period of time, and a set amount of concentrated disinfectant is injected into the cleaning and disinfection tank 2. Also,
The water supply valve 8 is also opened for a certain period of time, and a set amount of clean water is injected into the washing and disinfecting tank 2. Note that this dilution ratio can be arbitrarily set using an operation panel (not shown). for example,
If strong sterilizing power is required, such as when testing a patient suspected of having hepatitis B, etc., the concentration of the GA liquid should be set to about 3%, and other cases (where strong sterilizing power is required) should be used. If not, set the solenoid valve 1 to about 2%.
3 and the opening/closing time of the water supply valve 8 are controlled.

Furthermore, with the concentrated disinfectant solution and clean water introduced into the cleaning and disinfecting tank 2, the inflow boat 19 inch of the switching valve 19 is
and the outflow side circulation boat 19a are switched to communicate with each other, and the solenoid valve 17 and the cleaning pump 18 are turned on. As the cleaning pump 18 is driven, the disinfectant solution and clean water in the cleaning and disinfecting tank 2 are circulated along the circulation pipe 5 and mixed to an appropriate set concentration.

Thereafter, the electromagnetic valve 14 is opened for a certain period of time, and a predetermined amount of a mixed agent such as a buffering agent is injected into the cleaning/disinfecting tank 2 and mixed into the disinfectant, thereby activating the disinfectant. Then, this activated disinfectant is passed through the circulation pipe 5 to the injection nozzle 2.
Disinfectant solution is supplied to the channel connection port 2 and 0, and sprayed from the injection nozzle 20 onto the endoscope on the endoscope mounting table 3.
The disinfectant solution supplied to 1 is introduced into various channels of the endoscope through a cleaning tube (not shown) to disinfect the endoscope.

Then, after a predetermined period of time has elapsed, the switching valve 19 is operated to switch to an appropriate state. At this time, when the disinfectant solution is to be reused, a switching operation is performed so that the inflow boat 191n of the switching valve 19 and the collection boat 19c are communicated with each other. Therefore, in this state, the disinfectant in the cleaning and disinfecting tank 2 is recovered into the disinfectant recovery tank 12 through the recovery pipe 25. In addition, if the disinfectant is not to be reused, the switching valve 19
The inflow boat 191n and the drainage boat 19b are switched to communicate with each other. Therefore, in this state, the disinfectant in the cleaning and disinfecting tank 2 is drained to the outside via the drain pipe 6.

Further, the cleaning pump 18 is stopped, and the air solenoid valve 22,
The air pump 24 is driven, and air supplied through the air supply pipe line 23 is introduced into various channels of the endoscope from the channel connection port 21 through a cleaning tube (not shown), thereby draining the endoscope. .

Furthermore, after the disinfection process is completed, a rinsing process and a drying process are performed, and the entire process is completed.

Therefore, in the case of the above structure, a disinfectant such as a concentrated GA solution is injected into the concentrated disinfectant tank 9, and a agent mixed into the disinfectant such as a buffering agent for the GA solution is injected into the activator tank 10. The mixing state, concentration, etc. of the disinfectant solution and the mixed drug can be adjusted to any desired settings by simply setting the disinfectant solution, so that preparation operations such as diluting and mixing the disinfectant solution can be simplified. This prevents the disinfectant from adhering to the skin of the worker and prevents the worker from inhaling the vapor generated during the preparation of the disinfectant, which was done in the past, thereby improving safety. You can improve your performance.

Furthermore, since the concentrated disinfectant tank 9 for storing a disinfectant such as concentrated GA liquid is provided, a large amount of disinfectant can be stored in the disinfectant tank 9. Therefore, the interval between disinfectant injections can be lengthened, and the labor required by the operator can be reduced.

Note that this invention is not limited to the above embodiments. For example, in the above embodiment, the diluted solution of the concentrated disinfectant is taken directly from the water supply source 7 such as tap water, but as in the second embodiment shown in FIG. A filter 31 may be provided, the water flowing out from the water supply source 7 may be purified by the purification filter 31, and the concentrated disinfectant may be diluted with this purified water. Furthermore, as in the third embodiment shown in FIG. The concentrated disinfectant may be diluted with clean water in the clean water tank 41 injected from the inlet 43 of the tank 41. Note that the above-mentioned clean water can be used not only for diluting the concentrated disinfectant but also, for example, in a rinsing process.

Further, as in the fourth embodiment shown in FIG. The activator tank 10 is connected to the activator tank 10 and an activator such as powder
A configuration may also be adopted in which the water is directly introduced into the cleaning/disinfecting tank 2 via the solenoid valve 14.

Further, in each of the above embodiments, a configuration in which a concentrated disinfectant solution is stored in the cleaning/disinfecting tank 2 is shown, but a configuration in which a disinfectant solution at an actual concentration is stored may be adopted.

In this way, when the disinfectant solution at the actual concentration is stored in the cleaning/disinfecting t4V2, the dilution ratio can be set to 0 by operating the operation panel. Therefore, in this case, the worker can arbitrarily select and use two types of disinfectant, a concentrated type disinfectant and a disinfectant with an actual concentration type, taking into account availability, price, etc., which improves ease of use. can be increased.

Furthermore, it goes without saying that various other modifications can be made without departing from the gist of the invention.

[Effects of the Invention] According to the present invention, a disinfectant tank for storing the disinfectant introduced into the disinfectant tank and a drug tank for storing the agent mixed into the disinfectant are provided, and the mixed state of the disinfectant and the mixed agent is improved. Since we have provided a disinfectant solution preparation means to adjust the concentration, etc., it is possible to simplify the preparation work such as diluting and mixing the disinfectant, and when preparing the disinfectant, the disinfectant may adhere to the skin of the worker. Safety can be improved by preventing workers from inhaling steam or the like generated during disinfectant preparation work.

[Brief explanation of drawings]

FIG. 1 is an overall schematic diagram showing the first embodiment of the present invention, FIG. 2 is a schematic diagram of the main parts of the second embodiment, and FIG. 3 is a schematic diagram showing the main parts of the third embodiment. FIG. 4 is a schematic diagram of the main part of the fourth embodiment. 2...Cleaning disinfection tank, 9...Concentrated disinfectant tank, 10
...Activator tank (drug tank). Figure 2

Claims (1)

[Claims] A medical device disinfection device that includes a disinfection tank into which a disinfectant for disinfecting medical equipment is introduced, and disinfects the medical equipment in the disinfection tank, the disinfectant tank storing the disinfectant to be introduced into the disinfection tank; 1. A medical device disinfection device, characterized in that each medicine tank is provided with a medicine tank for storing a medicine mixed into the disinfectant solution, and a disinfectant solution preparation means is provided for adjusting the mixing state and concentration of the disinfectant solution and the mixed medicine.