JP5509007B2 - Medical device reprocessing equipment - Google Patents

Description

  The present invention relates to a medical device reprocessing apparatus for cleaning and disinfecting medical devices.

  Medical device reprocessing devices for cleaning and disinfecting medical devices and their accessories are well known. If a medical device reprocessing device is used, the medical device and accessories of the medical device are automatically set in the cleaning / disinfecting tank of the medical device reprocessing device. In particular, washing, disinfection, rinsing and draining can be performed.

  Here, when using chemicals having an irritating odor such as peracetic acid as a disinfecting solution used in the disinfection process, if the odor leaks from the cleaning disinfection tank to the atmosphere outside the medical device reprocessing apparatus, the medical apparatus reprocessing apparatus There has been a problem that the user is uncomfortable.

  Therefore, a configuration in which an odor blocker that captures or invalidates the odor of the disinfectant solution is provided at the atmosphere opening of the cleaning / disinfecting tank of the medical device reprocessing apparatus (Patent Document 1).

JP 2009-77770 A

  For example, when the endoscope channel is cleaned and disinfected by a newly developed gas-liquid two-phase flow that is a mixture of gas and liquid, the gas in the apparatus is cleaned and disinfected compared to conventional cleaning using only the fluid. There is a possibility that bacteria and viruses that are very slightly alive will spread inside.

  Furthermore, the odor blocker arranged in the conventional apparatus may allow bacteria and viruses to pass through even if the odor is stopped.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a medical device reprocessing apparatus having a configuration that prevents bacteria and viruses from being discharged into the atmosphere from a cleaning / disinfecting apparatus. .

In order to achieve the above object, a medical device reprocessing apparatus according to an aspect of the present invention includes a cleaning / disinfecting tank for bringing at least one of a stored medical device and a medical device accessory into contact with a stored chemical solution, and the cleaning / disinfecting device. An air duct that communicates between the tank and the outside of the apparatus, and a fungus / virus blocker that is disposed in at least one of the air duct and the outlet of the air duct and captures or inactivates at least one of bacteria and viruses. And the blast duct is branched at a midway position of the duct, and an odor blocker that captures or invalidates the odor of the chemical liquid is provided in one of the branched ducts. The fungus / virus blocker is disposed in the other duct of the branched air duct, and the one duct and the other duct are disposed in the duct. Either As the gas is blown, the switching unit for switching the air flow path of the blowing conduit is provided.

  ADVANTAGE OF THE INVENTION According to this invention, the medical device reprocessing apparatus which has the structure which prevents microbe and a virus from being discharged | emitted in air | atmosphere from a washing | cleaning disinfection tank can be provided.

The perspective view which shows schematically the medical device reprocessing apparatus which shows this Embodiment The figure which shows the outline of a structure of the atmospheric | air opening part of the washing | cleaning disinfection tank in the medical device reprocessing apparatus of FIG. 1 with a washing | cleaning disinfection tank. The chart which shows the switching control of the ventilation duct in the washing | cleaning disinfection process using the medical device reprocessing apparatus of FIG. The chart which shows the modification of change control of Figure 3 The figure which shows the modification which connected the other conduit of the ventilation duct to the drainage conduit The figure which shows the modification of FIG. 5 which connected the other pipe line of the ventilation pipe line to the air vent pipe led out from a medical device tank out of a medical device reprocessing apparatus The figure which shows the modification of FIG. 5 which comprised the ventilation duct of FIG. 5 from one. The figure which shows the modification of FIG. 7 which connected the ventilation pipe line of FIG. 7 to the air vent line led out from a medical device tank outside a medical device reprocessing apparatus.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view schematically showing a medical device reprocessing apparatus according to the present embodiment, and FIG. 2 is a schematic view showing the configuration of the atmospheric opening of a cleaning / disinfecting tank in the medical device reprocessing apparatus shown in FIG. It is a figure shown with a disinfection tank.

  As shown in FIGS. 1 and 2, the medical device reprocessing apparatus 1 is a device that cleans and disinfects at least one of the medical device 50 and the accessory 51 of the medical device 50, and includes the device main body 2, the device An upper part of the main body 2 includes a lid 3 that can be freely opened and closed to constitute a main part. It is hygienic and preferable that the lid 3 has a structure that can be opened and closed without being touched with a palm, such as a pedal 9 using a foot.

  The medical device 50 includes an endoscope, a treatment tool, and the like, and the medical device accessory 51 includes an operation button removed from the endoscope, a component removed from the treatment tool, and the like.

  As shown in FIG. 2, the apparatus main body 2 is provided with a cleaning / disinfecting tank 5 for bringing at least one of the accommodated medical device 50 and the medical device accessory 51 into contact with the stored chemical solution W. Yes. Examples of the chemical liquid W include a cleaning liquid, a disinfecting liquid, and rinsing water.

  Further, in the cleaning / disinfecting tank 5 illustrated in FIG. 1, the medical device 50 and the medical device accessory 51 are taken in and out by the operator when the lid 3 is opened as the operator depresses the pedal 9. It is provided at the position of the device main body 2 that can be used.

  In addition, an air opening 100 communicating with the cleaning / disinfecting tank 5 is provided in the upper part of the medical device reprocessing apparatus 1, specifically, in the upper part of the lid 3.

  The air opening 100 includes a blower duct 15 that communicates between the cleaning / disinfecting tank 5 and the outside of the medical device reprocessing apparatus 1, that is, the air.

  As shown in FIG. 2, the blower pipe line 15 has one end opened in the cleaning / disinfecting tank 5, and is branched into two at a midway position. The one pipe line and the other pipe line after the branching are branched. Each other end has a configuration opened to the atmosphere.

  That is, the air duct 15 includes a duct 15a that opens into the cleaning / disinfecting tank 5 upstream from the branch, and one duct 15b that opens downstream from the branch and opens into the atmosphere. It is comprised by the other pipe line 15c.

  In the midway position of the one pipe line 15b and the other pipe line 15c, the blower path in the blower pipe line 15 is switched so that the gas is blown to either the one pipe line 15b or the other pipe line 15c. Specifically, switching units 13 and 14 for opening and closing the flow paths in the pipes 15b and 15c are provided, respectively.

  Examples of the switching units 13 and 14 include solenoid valves that are opened and closed by operation control of a control unit (not shown) provided in the apparatus main body 2. The gas flowing through the air duct 15 includes air, bacteria K and viruses V removed from the medical device 50 and the medical device accessory 51 by the cleaning process, and the odor S of the disinfecting liquid used in the disinfection process. included.

  As shown in FIGS. 1 and 2, the vicinity of the branch portion of the air duct 15 and the switching portions 13 and 14 are covered by the case 10 so as not to be exposed to the outside.

  An odor blocker 11 that captures or invalidates the odor S of the disinfectant solution is provided on at least one of the inside of the pipeline 15b and the outlet of the pipeline 15b on the downstream side of the switching portion 13 of the one pipeline 15b. . The odor S supplied to the odor blocker 11 is captured or invalidated by the odor blocker 11 and then discharged into the atmosphere.

  The odor blocker 11 is composed of a filter having, for example, activated carbon or a chemical reagent composed of a reducing agent that reacts with peracetic acid. Moreover, in order to prevent the bacteria K and virus V from propagating on the odor blocker 11, the apparatus main body 2 has a configuration in which a disinfectant is supplied to the lower part of the odor blocker 11 via the pipes 15a and 15b. It does not matter. Moreover, you may provide the structure which can apply any conventionally well-known sterilization method which can be heat-sterilized or ultraviolet-ray-sterilized as another method for preventing the bacteria K and the virus V from breeding on the odor blocker 11.

  In addition, on the downstream side of the switching portion 14 of the other pipe line 15c, the bacteria removed from the medical device 50 and the medical equipment accessory 51 by at least one of the inside of the pipe line 15c and the outlet of the pipe line 15c by the cleaning process. A fungus / virus blocker 12 that captures or inactivates at least one of K and virus V is provided. The fungus K and virus V supplied to the fungus / virus blocker 12 are captured or inactivated by the fungus / virus blocker 12 and then discharged into the atmosphere.

  The bacteria / virus blocker 12 can spray a filter capable of collecting bacteria and viruses, a filter deactivated by contact with bacteria and viruses, an ultraviolet irradiation device, an adsorbent, and a bactericidal / virucidal agent. It is composed of at least one selected from the group consisting of a device and a device capable of transpiration of a bactericidal / virucidal agent.

  In addition, since the structure of the other medical device reprocessing apparatus 1 is known, the description is abbreviate | omitted.

  Next, the operation of the present embodiment will be described with reference to FIGS. 3 and 4 together with FIG. 2 described above.

  FIG. 3 is a chart showing air duct switching control in the cleaning / disinfecting process using the medical device reprocessing apparatus of FIG. 1, and FIG. 4 is a chart showing a modification of the switching control in FIG.

  First, a cleaning solution is injected into the cleaning / disinfecting tank 5, and a cleaning process is performed on at least one of the medical device 50 and the medical device accessory 51 in the cleaning / disinfecting tank 5. After the cleaning process, rinsing water is supplied to the cleaning / disinfecting tank 5. In the case where the rinsing process is performed by injecting the rinsing water and the rinsing water remaining in at least one of the medical device 50 and the medical device accessory 51 is removed by supplying gas to the cleaning / disinfecting tank 5 after the rinsing step, FIG. As shown in FIG. 4, the above-described control unit of the apparatus main body 2 closes the switching unit 13 and opens the switching unit 14 to switch the air blowing path to the other pipe line 15c, so that the bacteria / virus blocker 12 Supply gas.

  As a result, the bacteria K removed from at least one of the medical device 50 and the medical device accessory 51 during the cleaning process, the subsequent rinsing process, the subsequent air supply process, and after the air supply process and before the disinfection process. And / or virus V is supplied to the fungus / virus blocker 12 via the ducts 15a and 15c, and the fungus K and virus V are captured or inactivated by the fungus / virus blocker 12. Discharged into the atmosphere. The same applies to the case where a known gas-liquid two-phase flow is supplied to the cleaning / disinfecting tank 5.

  Next, after the air supply process described above, a disinfectant solution is injected into the cleaning / disinfecting tank 5, and a disinfecting process is performed on at least one of the medical device 50 and the medical device accessory 51 in the cleaning / disinfecting tank 5, The disinfecting liquid is collected from the drain port provided in the cleaning / disinfecting tank 5, and after the collection, air is supplied to remove the disinfecting liquid remaining in at least one of the medical device 50 and the medical device accessory 51, and then Then, a rinsing process is performed by injecting rinsing water into the cleaning / disinfecting tank 5. After the rinsing process, gas is supplied again to the cleaning / disinfecting tank 5 to remain in at least one of the medical device 50 and the medical device accessory 51. 3, the above-described control unit of the apparatus main body 2 closes the switching unit 14 and opens the switching unit 13 so that the air flow path is connected to one pipe line 15b, as shown in FIG. Switch to supply gas to the odor blocker 11

  As a result, the odor S of the disinfectant solution during the disinfection process, the subsequent air supply process, the subsequent rinsing process, and the subsequent air supply process is supplied to the odor blocker 11 through the pipe line 15a and the pipe line 15b. The odor S is captured or invalidated by the odor blocker 11 and discharged into the atmosphere.

  In addition, after supplying the disinfecting solution to the cleaning / disinfecting tank 5, the bacteria K and the virus V in the cleaning / disinfecting tank 5 are killed, so it is not necessary to switch the air supply path to the other pipe line 15c.

  However, as shown in FIG. 4, after the rinsing process after the air supply process performed after the disinfectant solution is collected, the bacteria K and viruses V in the atmosphere are passed through the odor blocker 11, the one pipe line 15 b, and the pipe line 15 a. May be switched again to the other pipe line 15c by closing the switching unit 13 and opening the switching unit 14 so as not to enter the cleaning / disinfecting tank 5. Furthermore, after the last air supply step, the drain valve is closed so that bacteria K and viruses V in the atmosphere do not enter the cleaning / disinfecting tank 5 through the drain port. Also good.

  If the control of FIG. 4 is used, since the inside of the cleaning / disinfecting tank 5 can be kept aseptic after completion of the cleaning / disinfecting process, the medical device 50 and the medical device accessory 51 are kept in the cleaning / disinfecting tank 5. In addition, the sterility of the medical device 50 and the medical device accessory 51 can be ensured. In other words, the cleaning / disinfecting tank 5 can be used as a storage for the medical device 50 and the medical device accessory 51.

  When the cleaning / disinfecting tank 5 is used as a storage, the cleaning / disinfecting tank 5 is regularly used to further accelerate the drying of the medical device 50 or to periodically change the atmosphere in the cleaning / disinfecting tank 5. You can do a good air supply.

  Specifically, when drying is promoted, air may be supplied to the cleaning / disinfecting tank 5 every 2 minutes after the completion of the cleaning / disinfecting process, and the atmosphere in the cleaning / disinfecting tank 5 is changed. In this case, after the cleaning / disinfecting process, up to 1 hour, air blowing for 2 minutes every 15 minutes may be performed periodically. In addition, what kind of thing may be sufficient as a regular ventilation timing.

  As described above, in the present embodiment, the medical device reprocessing apparatus 1 is provided with the air duct 15 for communicating the cleaning / disinfecting tank 5 and the outside of the medical equipment reprocessing apparatus 1. In addition, since the bacteria / virus blocker 12 is provided, the bacteria K and viruses V in the cleaning / disinfecting tank 5 are captured or inactivated by the bacteria / virus blocker 12, and therefore, the bacteria K and viruses in the atmosphere. It is possible to prevent V from being discharged.

  In addition, the air duct 15 is branched into two pipes 15b and 15c in the middle position, the odor blocker 11 is provided in the pipe 15b, the bacteria / virus blocker 12 is provided in the pipe 15c, and each pipe Since the air blowing path in the air duct 15 is switched by the switching units 13 and 14 provided in the passages 15b and 15c, when the bacteria K and the virus V are generated in the cleaning process or the like, the air duct is routed through the air duct. When the odor S is generated after the sterilization process and after the sterilization of the bacterium K or the virus V after the sterilization process, the air passage is routed to the pipe line 15b. Since the odor S can be removed by the odor blocker 11 by switching, not only the bacteria K and virus V but also the odor S is not discharged from the cleaning / disinfecting tank 5 in the atmosphere. It is possible.

  From the above, it is possible to provide the medical device reprocessing apparatus 1 having a configuration that prevents the bacteria K and viruses V from being discharged from the cleaning / disinfecting tank 5 into the atmosphere.

  In the above-described configuration, the air duct 15 is branched into two ducts 15b and 15c at the midway position, the odor blocker 11 is provided in the duct 15b, and the fungus / virus blocker 12 is provided in the duct 15c. However, in the case of using the medical device reprocessing apparatus 1 that does not use the disinfectant or the disinfectant that does not involve the odor, the odor S is not generated in the first place, so the odor blocker 11 needs to be provided. There is no.

  That is, in this case, the air duct 15 does not need to be branched, and a structure in which the bacteria / virus blocker 12 is provided in the air duct 15 may be used.

  In the above-described embodiment, the odor blocker and the fungus / virus blocker are arranged on one side and the other side using a bifurcated pipeline, but for example, the branched pipeline need not be used. . In this case, the odor blocker and the bacteria / virus blocker should be placed in the same conduit, and if the air permeability of the bacteria / virus blocker is lower than the odor blocker, the size of the bacteria / virus blocker is adjusted. Thus, it is only necessary to prevent clogging during exhaust.

  Hereinafter, a modification will be described with reference to FIGS. FIG. 5 is a view showing a modified example in which the other duct of the blower duct is connected to the drainage duct, and FIG. 6 shows the other duct of the blower duct from the chemical tank to the outside of the medical device reprocessing apparatus. It is a figure which shows the modification of FIG. 5 connected to the air vent pipe line derived | led-out.

  As shown in FIG. 5, the chemical solution W led out from the cleaning / disinfecting tank 5 to the outside of the medical device reprocessing device 1 without providing the bacteria / virus blocker 12 in the other conduit 15 c is removed from the medical device reprocessing device 1. The other conduit 15c may be connected to the drainage conduit 20 that discharges the fluid. In this case, a check valve 24 for preventing the backflow of the chemical solution is provided in the other pipe line 15c.

  A drainage opening / closing valve 21, a drainage pump 22, and the like are interposed in the middle of the drainage pipe line 20. When the opening / closing valve 21 is opened and the drainage pump 22 is driven. The chemical liquid W in the cleaning / disinfecting tank 5 is discharged out of the medical device reprocessing apparatus 1 through the drainage conduit 20.

  According to such a configuration, the bacteria K and virus V in the cleaning / disinfecting tank 5 are discharged out of the medical device reprocessing apparatus 1 through the conduit 15c and the drainage conduit 20, so that FIG. Also with this configuration, it is possible to provide the medical device reprocessing apparatus 1 having a configuration that prevents the bacteria K, virus V, and odor S from being discharged from the cleaning / disinfecting tank 5 into the atmosphere.

  In contrast to the configuration of FIG. 5, the fungus / virus blocker 12 is provided in one conduit 15b, the odor blocker 11 is not provided in the other conduit 15c, and the other conduit is provided in the drainage conduit 20. The configuration may be such that the path 15c is connected.

  Further, as shown in FIG. 6, the odor blocker 11 is provided in one conduit 15b, and the other conduit 15c is a chemical tank that supplies the disinfectant A to the cleaning / disinfecting tank 5 provided in the apparatus main body 2. A certain disinfectant tank 30 may be connected to an air vent line 31 extending outside the medical device reprocessing apparatus 1.

  According to such a configuration, the bacteria K and virus V in the cleaning / disinfecting tank 5 enter the air vent line 31 via the other duct 15c. Since it is killed by the vapor of the disinfectant A in the passage 31 and then discharged outside the medical device reprocessing apparatus 1, the bacteria K, virus V, and odor S are discharged from the cleaning / disinfecting tank 5 into the atmosphere. Can be prevented.

  In contrast to the configuration shown in FIG. 6, the fungus / virus blocker 12 is provided in one conduit 15b, the odor blocker 11 is not provided in the other conduit 15c, and the other tube is provided in the air vent conduit 31. The configuration may be such that the path 15c is connected. However, in the case of this configuration, since the odor S may be discharged into the atmosphere through the air vent line 31, the air vent line 31 needs to be provided with the odor blocker 11. There is.

  Hereinafter, another modification will be described with reference to FIG. FIG. 7 is a view showing a modification of FIG. 5 in which the blower duct of FIG.

  As shown in FIG. 7, the air duct 15 extending from the cleaning / disinfecting tank 5 may be a single duct that does not have a branch, and the air duct 15 is exhausted. It may be configured to be connected to the liquid pipe 20. In this configuration, a check valve 24 for preventing the back flow of the chemical solution is provided in the air duct 15.

  According to such a configuration, the bacteria K, virus V, and odor S in the cleaning / disinfecting tank 5 are discharged to the outside of the medical device reprocessing apparatus 1 via the blower duct 15 and the drainage duct 20. Therefore, it is possible to prevent the bacteria K, virus V, and odor S from being discharged from the cleaning / disinfecting tank 5 into the atmosphere with a simpler configuration than the configuration of FIG.

  Furthermore, another modification will be described below with reference to FIG. FIG. 8 is a view showing a modification of FIG. 7 in which the air duct shown in FIG. 7 is connected to an air vent line leading out of the medical device reprocessing apparatus from the chemical tank.

  As shown in FIG. 8, the single air duct 15 extending from the cleaning / disinfecting tank 5 may be connected to the air vent line 31 described above. In FIG. 8, an odor blocker 11 is provided at the opening end of the air vent line 31 outside the medical device reprocessing apparatus 1.

  According to such a configuration, on the other hand, the odor S in the cleaning / disinfecting tank 5 is supplied to the odor blocker 11 via the air duct 15 and the air vent line 31, and the odor S is generated by the odor blocker 11. After being captured or invalidated, it is discharged out of the medical device reprocessing apparatus 1.

  On the other hand, the bacteria K and virus V in the cleaning / disinfecting tank 5 enter the air vent line 31 via the air duct 15, but the bacteria K and virus V are disinfectant A in the air vent line 31. Is then killed by the vapor of the water and then discharged out of the medical device reprocessing apparatus 1.

  Therefore, even with the configuration shown in FIG. 8, it is possible to prevent the bacteria K, virus V, and odor S from being discharged from the cleaning / disinfecting tank 5 into the atmosphere.

DESCRIPTION OF SYMBOLS 1 ... Medical equipment reprocessing apparatus 2 ... Apparatus main body 3 ... Cover body 5 ... Cleaning disinfection tank 9 ... Pedal 10 ... Case 11 ... Odor blocker 12 ... Virus blocker 13 ... Switching part 14 ... Switching part 15 ... Air supply line 15a ... Pipe Path 15b ... One pipe 15c ... The other pipe 20 ... Drainage pipe 21 ... On-off valve 22 ... Drainage pump 24 ... Check valve 30 ... Disinfection liquid tank (chemical liquid tank)
31 ... Air vent pipe 50 ... Medical equipment 51 ... Medical equipment accessories 100 ... Air opening A ... Disinfectant (chemical)
K ... Bacteria (gas)
S ... Odor (gas)
V ... Virus (gas)
W ... Chemical solution

Claims (4)

A cleaning / disinfecting tank for bringing at least one of the stored medical device and the medical device accessory into contact with the stored chemical solution;
An air duct that allows communication between the washing / disinfecting tank and the outside of the apparatus;
A fungus / virus blocker that captures or inactivates at least one of fungi and virus, disposed in at least one of the air duct and the outlet of the air duct;
Equipped with,
The air duct is branched at a midway position of the duct, and an odor blocker that captures or invalidates the odor of the chemical solution is disposed on one of the branched ducts. The fungus / virus blocker is arranged in the other of the branched air ducts,
The air supply pipe is provided with a switching unit for switching the air supply path in the air supply pipe so that gas is blown to either the one pipe or the other pipe. Medical device reprocessing equipment. In the cleaning / disinfecting tank, the switching unit is in the cleaning step of at least one of the medical device and the medical device accessory, in the rinsing step after the cleaning step, and in the air feeding step after the rinsing step. Switch the air flow path to the other pipe line,
During the sterilization process of at least one of the medical device and the medical device accessory after the air supply process, during the rinsing process after the sterilization process, and during the air supply process after the rinsing process, air is blown to the one conduit. The medical device reprocessing apparatus according to claim 1 , wherein the path is switched. In the cleaning / disinfecting tank, the switching unit is in the cleaning step of at least one of the medical device and the medical device accessory, in the rinsing step after the cleaning step, and in the air feeding step after the rinsing step. Switch the air flow path to the other pipe line,
After the disinfection process of at least one of the medical device and the medical device accessory after the air supply process, the air supply path is switched to the one pipe line, and the air supply after the rinse process is performed during the rinse process after the disinfection process. step in again, medical device reprocessing apparatus according to claim 1, characterized in that switching the air flow path to the other conduit. A cleaning / disinfecting tank for bringing at least one of the stored medical device and the medical device accessory into contact with the stored chemical solution;
An air duct that allows communication between the washing / disinfecting tank and the outside of the apparatus;
A drainage conduit led out of the cleaning / disinfecting tank from the cleaning / disinfecting tank;
An odor blocker that captures or nullifies the odor of the chemical solution;
A chemical solution tank storing the chemical solution supplied to the cleaning and disinfecting tank;
Comprising
The air duct is branched at a midway position of the duct, and the odor blocker or the fungus / virus blocker is arranged in one of the branched ducts, and the other duct is A medical device reprocessing apparatus connected to the drainage conduit or the chemical tank.

Images