JPS59141925A - Disinfection system of endoscope - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an endoscope disinfection method for disinfecting an endoscope with a disinfectant solution.

One possible method for disinfecting an endoscope is to immerse the endoscope in a disinfectant solution. However, if the disinfectant is immersed in the disinfectant solution, it is not always possible to disinfect the conduit circles such as forceps channels sufficiently. Therefore, when supplying the disinfectant to the disinfectant tank, the The supply line is also connected to the endoscope's conduit to supply disinfectant. However, since the diameter of the endoscope's conduit is small, most of the disinfectant flows into the disinfectant tank. The endoscope tube (:) may not be completely filled with disinfectant.

The present invention was made in view of the above circumstances.

The purpose of this invention is to provide an endoscope disinfection method that can supply a sufficient amount of disinfectant to the conduit of the cylindrical tube to ensure reliable disinfection.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

What is shown in FIG. 1 is the endoscope cleaning device. As shown in FIG. 2, a cleaning tank 2 which also serves as a disinfection tank is provided inside the main body 1 of the apparatus. The opening of the cleaning tank 2 is closed by a cover 3C that can be opened and closed. Inside C2 of the cleaning tank 2, a shelf 5 on which the endoscope 4 is placed is provided.

This shelf 5 is used to place the entire endoscope 4 that can be washed and sterilized, and when the endoscope 4 has only the insertion section 4a that can be washed and sterilized, the insertion section 4a is placed thereon. Place only. In the case of the latter type of endoscope 4, its operation section 4b
As will be described later, it is arranged so that it is installed at an operation part fixing part 6 provided outside the cleaning tank 2 (in a double-sided shape).

A nozzle 7 is provided in the center of the cleaning tank 2 and is rotated by a nozzle motor J2 during cleaning, so that cleaning liquid is sprayed onto the outer peripheral surface of the endoscope 4 in the cleaning tank 2. Further, an air supply tube 8 is extended from the inside of the cleaning tank 2≦2. A connector 9 is provided at the distal end of the air supply tube 8 so that it can be connected to the endoscope 4 via this connector 9. That is, by connecting the connector 9 to the side circumferential surface of the connector portion 4d of the light guide cable 4C of the endoscope 4 (: the provided injection mouthpiece 101'), the sealed space inside the endoscope 4 is The air supply tube 8 can be connected for communication.The injection cap IO is normally completely closed, but when the connector 9 of the air supply tube 8 is connected, it automatically opens to connect the air supply tube 8. It is designed to be connected to the inside of the endoscope 4.Furthermore, when the air supply tube 8 is removed from the injection cap ZO of the connector 9, the injection cap 10 is closed. Inside the cleaning tank 2, there are provided a number of supply ports I3 for supplying cleaning liquid and disinfectant to the pipes of the inkstone mirror 4.The supply ports I3... is connected to the pipes of the internal rule tL4, such as the forceps channel, the air line, the water line and the CO via the connecting tube I4...

Gas pipes, etc. (2) are connected so that they are connected to each other.

The above-mentioned operation unit fixing region 6 is located at the front end of the upper surface of the main body I (2 is located on the left end side thereof). A plurality of supply ports I5 are provided for supplying cleaning liquid and disinfectant to the pipes.
5... is used when cleaning and sterilizing an endoscope 4 in which only the insertion section 4a can be cleaned and sterilized, and is connected to the conduits of this type of endoscope 4 through a connection tube similar to the above. C: It's like that. In addition, (2) the part located on the right end side of the device main body I (: is the part where the main spring part I6 is installed,
Further, a sub-panel section I7 is installed at the front section located below the main panel section I6. The sub-panel section I7 is used to turn on the power, set the washing time, set the disinfection time, etc., and the main panel section I6 is used to give commands for each operation.

On the other hand, the system of this cleaning device is constructed as shown in FIG. That is, the water tank T.

The water supply tank Tl has a detergent tank T and a chemical solution tank Tm f, and the water supply cock C is connected to the upper part C of the water supply tank Tl via an electromagnetic water supply valve v1, and by opening the water supply valve v1, the water supply tank T, The area is now supplied with tap water. The bottom of the water supply tank TI is connected to the nozzle 7 through the cleaning pump P1, and the discharge side of the cleaning pump P1 is connected to the mixing chamber through the first check valve vl.
c is connected. Also, wash tank T.

is connected to the inflow side of the washing pump PR via an electric or magnetic detergent valve V, and the washing water (detergent) is injected by opening the detergent valve V for a required period of time.

Further, a supply pipe 2I for guiding leakage test water to the cleaning tank 2 is connected to the bottom of the water supply tank T1. A water injection pump P for leakage detection is inserted in the middle of this supply pipe 2I, and this water injection pump P! By operating the water supply tank T1, water from the water supply tank T1 is sent to the cleaning tank 2. Incidentally, inside the water supply tank T1, there are installed a top water level detector S1 for detecting full water, a middle water level detector 8, I for detecting the water supply start water level, and a top water level detector S1 for detecting full water. Each detector s, +81
+8, each water level is detected and each part is controlled as described later.

Next (2) To explain the disinfectant solution supply device, this has the above-mentioned chemical solution tank T1, and this chemical solution tank T is connected to the above-mentioned cleaning tank 2 through a chemical solution pump P and an electromagnetic cleaning tank valve v in series. Then, by operating the chemical liquid pump Psk and fully opening the cleaning tank valve v, the chemical liquid tank 1 is opened.
゛.

The chemical liquid for cleaning 'IfI2 (2) can be supplied (2).In addition, from the flow path part between the chemical liquid pump P and the cleaning seed valve V, a flow path leading to the mixing ladder 1 is branched. However, a mixing ladder [a second check valve V for preventing backflow from the l side] is inserted in the middle of this branch/lf channel. It is designed to supply liquid.

Further, the cleaning tank 2 is connected in parallel to the chemical tank T and the drainage pump P via a switching valve V, and the switching valve V6 is connected to a switching motor M.

(Secondly, a state in which it opens to either the chemical tank Ts side or the drain pump P side, and a closed state in which it opens to both sides are selected. An overflow is detected inside the chemical tank TI. A water level detector S6 that detects an overflow (dangerous water level) and a water level detector S that detects an appropriate water level are installed. A water level detector S, as described below, is installed.

On the other hand, an air pump P is further connected to the mixing header H via an air check valve "t", and pressurized air is supplied from the air pump P1 to the mixing header H via the air check valve vyk as necessary. , is mixed with water from the water supply tank T1 side to create a bubble flow, and is supplied to the pipes of the endoscope 4 through the supply port I3.
There is also an air valve v11' on the discharge side of the air pump P.
(It is connected to the supply port I5... which is connected to the air supply pipe of the endoscope 4 through the supply port I5.

Further, to explain the leakage testing device 30, this has an air pump P6 as an air supply source, and the air pump P1 of this is inside the device main body Z (split into two, and the discharge side of this air pump P is connected to the above-mentioned air supply tube. 8≦2 are connected, thereby constituting an air supply guide means for selectively sending pressurized air into the interior of the endoscope 4 through the air supply tube 8.Furthermore, the air supply path of the air pump P6 A relief valve V9 and an air bleed valve V are connected in the middle of the .The above relief valve V opens when the air supply pressure becomes abnormally high, releases excess air, and lowers the pressure to a safe level. In addition, the air vent valve v1
G is the selected process, e.g. leak detection mode, water washing.

Air supply auto mode, disinfection (water washing, air supply, dissemination.

Immediately before the end of auto mode (rinsing, air supply), water washing auto mode, air supply manual mode, etc.
It is opened for a certain period of time in response to a command from the CPU) and releases the pressurized air inside the endoscope 4 to the outside (2), thereby reducing the pressure inside the endoscope 4 to the normal pressure ζ2. It has become.

Next, operation C of the cleaning device will be explained.

First, consider the case where two endoscopes C are used to process an endoscope 4 that can be completely cleaned and disinfected. In this case (as shown in Figure 2), the entire near endoscope 4 is installed inside the cleaning tank 2.Then, connect the connecting tubes X4... to each conduit of the endoscope! Connect the supply ports I3... through the endoscope 4. Also, connect the air supply tube 8 and CIJ connector 9 to the leakage inspection connection port IO of the endoscope 4. Then, with the cover 3 open, the power switch of the sub-panel part I7 is closed, and the operation is ready to start.

Therefore, first, an operation is performed to discover the leakage point of the endoscope 4. That is, when the leak test switch on the main panel section I6 is pressed, the indicator lamp on the second main panel section I6 lights up to indicate that a leak test is in progress.

This display will remain lit until all leak tests are completed.

At the same time, the switching motor Mll operates to close the flow path switching valve v6 and close the discharge port of the cleaning tank 2. In addition, the switching operation of the switching valve V for this flow path is that C.
: Correctly regulated by built-in limit switches. Immediately after the discharge port of the cleaning tank 2 is completely closed in this way, the air pump P6 starts operating and supplies pressurized air into the internal space of the endoscope 4 through the air supply tube 8 described above. F of this! Since the entire inside of the jA mirror 4 is in communication with each other, the internal space is also in a high pressure state. On the other hand, when a certain period of time has passed after the air pump P6 starts operating, the leak detection water injection pump P! is activated, and the water (inspection water) in the water supply tank T is supplied to the cleaning tank 2 until the water level detector S detects that it is full (appropriate water level).

When the cleaning tank 2 is filled with water in this manner, the endoscope 4 is completely submerged in water. As mentioned above, the internal space of this endoscope 4 is pressurized, so if there is a leakage point such as a crack or pinhole in any part of the endoscope 4, air bubbles will blow out from there. Air bubbles rise through the test water. Therefore, by directly observing and confirming this with the naked eye, the operator can discover the leakage location. Note that the air supply by the leakage pump P6 is normally continued until each subsequent process is completed. However, it is not used during automatic air supply.

If the leak test switch is pressed again within the predetermined time, the leak test operation time will be extended, but if it is not pressed, the motor MR will automatically operate and the flow path switching valve V will be switched to the discharge side. At the same time, after this switching is completed, the drain pump P4 is activated and drains the water from the cleaning tank 2. Furthermore, although the air pump P6 normally stops, the pressurized state within the endoscope 4 remains for a while. When all of the water in the cleaning tank 2 has been drained, an end buzzer sounds to notify you of this.

Next, the operations of the cleaning process and disinfection process will be explained. When only the cleaning process is selected, only that cleaning process is performed, but when the disinfection process is selected, the cleaning process is performed as a preceding process. Therefore, the case where the disinfection process is selected will be explained.

When you press the start switch, the indicator lamp lights up and
Also, the remaining time begins to be displayed on the time display. Furthermore, the switching motor M is operated to switch the flow path switching valve v6 to the discharge side.

After this, the cleaning pump P for supplying cleaning water and the drainage pump P operate, and the nozzle motor M1 operates to rotate the nozzle 7. Close, air pump P
, works.

By the way, at this time, the air pump P6 for leakage inspection mentioned above is also normally operated, and the air pump P6 inside the endoscope 4 is
Second, pressurized air is sent in by the same action as in the leakage inspection described above.

This operation continues during the subsequent washing and disinfection steps. Therefore, if.

Even if there is a leakage point such as a crack or pinhole in a part of the endoscope 4, the liquid E>
Even if you touch it, it will not penetrate into that circular part. For this reason, the endoscope 4
damage can be prevented.

As described above, the various pipes of the endoscope 4 are supplied with cleaning water from the water supply tank T and air from the air pump pH through the supply port Z3... and the connection tube 14... to the mixing header HI. : Sent at the same time. For this reason, they become a bubble flow and are supplied into the pipe line 1 of the endoscope 4, effectively cleaning the inside thereof.On the other hand, the cleaning pump P
, the cleaning water from tank T is also sent to the rotating nozzle 7, and the outer surface of the endoscope 4 (:
Spray and clean. Then, in the middle of this washing water supply process, the detergent valve V is opened for a certain period of time, and the detergent tank T! Detergent is supplied from the washing water supply path to the middle of the washing water supply path. As a result, washing water mixed with detergent is supplied, and so-called detergent washing can be performed. After washing with detergent, a so-called rinsing process is performed for a certain period of time, in which only washing water is supplied for washing. When this rinsing step is completed, the operation of the cleaning pump Pl is stopped, and the supply of cleaning water is stopped. At the same time, the nozzle motor M also stops, and the nozzle 7 stops rotating. However, the air pump P continues to operate for a certain period of time after that, supplying only air into the conduit of the endoscope 4, and discharging the cleaning water remaining therein. Note that the discharge pump P operates until the cleaning water in the cleaning tank 2 is completely exhausted, and then automatically stops. Further, the switching valve V is automatically switched to the open side by the operation of the switching motor M. Above C
/J til) is the cleaning process. Note that when only the cleaning step is selected, the process ends here.

When the disinfection process is selected, the disinfection process C2 continues.

That is, first, the switching motor M operates to close the switching valve v6 of the flow path. Immediately after this (the second cleaning tank valve v4 opens and the chemical liquid pump P starts operating), the disinfectant in the chemical liquid tank T1 is supplied from Kameyu to the cleaning tank 2. The chemical liquid also flows through the flow path on the stop valve V and the mixing header H side, and further through the connecting tube I4...
It is also supplied into each conduit of the endoscope 4 through the tube.

When the extinguishing solution is supplied to the cleaning tank (disinfecting tank) 2 up to the specified water level, the endoscope 4 is completely immersed in the disinfectant solution, and this state is determined by the water level detector S, is detected by the cleaning valve vIl in response to this detection signal.
closes. However, the chemical liquid pump P continues to operate for a certain period of time (for example, 20 seconds) after that, and supplies the second digestive liquid to the pipe line of the endoscope 4.
All of the supply capacity acts as a supply effect to the conduit side, and a sufficiently strong supply is provided to every corner. Furthermore, since C2 and internal pipe @4 are completely immersed in the disinfectant solution, there is no room for new air bubbles to enter.The inside of the pipe can be effectively disinfected.

After the inside of the pipe is completely filled with the disinfectant liquid, the operation of Pl is stopped. In other words, the endoscope 4 is completely filled with the disinfectant solution not only on its outer surface but also inside the pipe. immersed in water.

Then, after a predetermined period of time has elapsed, a disinfectant liquid recovery operation is performed. That is, the switching motor M operates to switch the switching valve V- of the flow path to the chemical tank tank 3 side, and the disinfectant solution in the cleaning tank 4 flows into the chemical tank T and is recovered. The PI continues to operate, and the disinfectant solution that has entered the pipe channel of the endoscope 4 is also discharged and collected.

When this recovery is completed, the switching motor M is activated to
13 The switching valve V6 switches to the discharge side (-), and the drain pump P starts operating. At the same time, the air pump P starts operating, and furthermore, the cleaning pump PK starts operating. A rinsing operation similar to that described above, that is, rinsing with water using a bubble flow without detergent, is performed to clean not only the outer surface of the endoscope 4 but also the inside of its conduit.When this rinsing process is completed, the operation of the cleaning pump P1 is stopped. The water inside the pipe is drained from C2 by continuing the operation of the air pump P.The water washing process and the disinfection process are automatically carried out (two steps).The water washing process and the air only supply process are It is also possible to select and operate manually.

In the above usage example, the endoscope 4 is capable of being completely cleaned and sterilized, but an endoscope 4 that can only be partially cleaned and sterilized (the insertion part) is also applicable. However, in this case,
Skip the leak inspection process. Further, the conduit of the endoscope 4 is connected to the supply port Z5 through the same connection tube as described above. Then, the other pipes except the air supply pipe (: are cleaned by supplying only water instead of bubble flow. Also, after cleaning and draining water, the air valve V is fully opened and the air pump P is used to supply air to the air supply pipe. The water that has entered the air supply pipe is discharged.In this case, during standby after an abnormality is detected,
Of course, pressurized air is sent to prevent leakage from the insertion section.

As explained above, the present invention is a disinfection N (with an endoscope installed).
2. When disinfectant solution is injected, disinfectant solution is also injected into the conduit of the endoscope. Disinfectant tank C: After the disinfectant solution reaches the specified water level, the disinfectant solution is continued to be injected into the conduit for a certain period of time. Therefore, it is possible to thoroughly distribute the disinfectant solution to every nook and cranny within the duct of the endoscope for effective and reliable C: disinfection.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, the first factor C is a perspective view of the cleaning device, the second factor is a plan view of the cleaning device with the cover open, and the third factor is the flow path system factor of the system. . I...Device main body, 2...Cleaning tank (disinfecting tank), 4...
・P7L scope, I4...connection tube, Pl...chemical tank. Applicant's Attorney Takehiko Dosuzu 19- Figure 1

Claims (1)

[Claims] When setting up the endoscope to be disinfected, we installed a disinfection tank for disinfecting the endoscope by immersing it in a disinfectant solution, and added disinfectant solution to this disinfection tank and the above-mentioned 173 inkstone OJ pipe C2. In addition to supplying (2) the above-mentioned disinfection tank (2), the endoscope pipe is equipped with a disinfectant supply device that continues to supply disinfectant solution for a predetermined period of time after supplying the disinfectant solution up to the specified water level. Disinfection method for endoscopes with special ridges.