JP2007089637A - Washing and disinfecting apparatus for endoscope - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce adverse influence on an environment due to the dilution of disinfectant solution by residual water and remaining disinfectant solution. <P>SOLUTION: The washing and disinfecting apparatus 2 for the endoscope comprises: a water discharge port 18 provided on a washing tub 12, an external water discharge port 50 for discharging washing water to the outside and a water discharge path 51 for connecting them; a solution discharge port 19 provided to the washing tub 12, an external solution discharge port 48 for discharging the disinfectant solution to the outside and a solution discharge path 49 for connecting them, which are provided separately from the waster discharge port 18, the external water discharge port 50 and the water discharge path 51; a disinfectant solution recovery path 45 for connecting a disinfectant solution tank 43 for storing the disinfectant solution and the solution discharge path 49; and a second solenoid valve 4 for switching the flow path of the disinfectant solution to the solution discharge path 49 and the disinfectant solution recovery path 45. Since the route of discharging the washing water and the route of discharging the disinfectant solution are provided separately, the washing water and the disinfectant solution are not mixed at the common part of the route. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an endoscope cleaning / disinfecting apparatus for cleaning / disinfecting an endoscope housed in a cleaning tank.

  Conventionally, medical diagnosis using an endoscope has been actively performed in the medical field. Endoscopes used in medical diagnosis are pre-cleaned by nurses, etc., then cleaned, disinfected, rinsed, dried, etc. in the cleaning tank of the endoscope cleaning / disinfecting device (see Patent Document 1). Is applied and cleaned and sterilized.

As shown in FIG. 7, in the conventional endoscope cleaning / disinfecting apparatus 100, the disinfecting liquid is stored in the disinfecting liquid tank 102 installed in the apparatus main body 101, and the disinfecting liquid supply path 103 and the pump 104 are used. The disinfecting liquid is supplied from the disinfecting liquid supply port 105 to the cleaning tank 106, and the disinfecting liquid used for disinfecting is collected in the disinfecting liquid tank 102 through the draining port 107 and the disinfecting liquid collecting path 108, and the disinfecting liquid is recovered. I try to reuse it. Further, the disinfecting liquid whose efficacy has been deactivated is discharged to the outside through a drainage path 110 that connects the drainage port 107 and the external drainage port 109.
JP-A-3-106332

  In the endoscope cleaning and disinfecting apparatus 100, not only the disinfecting liquid but also the cleaning water supplied to the cleaning tank 106 through the water supply channel 111 and the water supply port 112 uses the drainage port 107 and the drainage channel 110. Since the water is drained to the external drainage port 109, the water remaining in the drainage port 107 and the portion 113 (portion surrounded by the dotted line) of the drainage channel 110 shared with the disinfecting solution recovery channel 108 (residual water) There is a problem that the disinfectant is diluted by this, and its effectiveness is immediately deactivated.

  Contrary to the above problem, the cleaning water is contaminated by the remaining disinfecting solution, which may adversely affect the environment.

  The present invention has been made in view of the above-described problems, and provides an endoscope cleaning and disinfecting apparatus that can dilute a disinfecting liquid with residual water and reduce adverse effects on the environment due to the residual disinfecting liquid. Objective.

  In order to achieve the above object, the present invention provides an endoscope cleaning / disinfecting apparatus for cleaning / disinfecting an endoscope housed in a cleaning tank, wherein a drain outlet provided in the cleaning tank and the cleaning water are externally provided. An external drainage port for draining the water, a drainage channel connecting them, and the drainage port, the external drainage port, and the drainage channel, provided separately from the drainage port provided in the cleaning tank, and the disinfectant solution to the outside An external drainage port for draining the liquid, a drainage path connecting them, a disinfectant tank for storing the disinfectant liquid, a disinfectant recovery path connecting the drainage path, and a flow path for the disinfectant liquid And a switching valve for switching to the disinfectant recovery path.

  In addition, it is preferable to provide the said drain outlet in the position lower than the said drain outlet.

  According to the endoscope cleaning and disinfecting apparatus of the present invention, the drain port provided in the cleaning tank, the external drain port for draining the cleaning water to the outside, the drain channel connecting them, the drain port, the external drain port, and Separately from the drainage channel, the drainage port provided in the cleaning tank, the external drainage port for draining the disinfectant solution to the outside, the drainage channel connecting them, the disinfectant solution tank for storing the disinfectant solution, and the drainage It has a disinfecting liquid recovery path that connects the liquid paths, and a switching valve that switches the disinfecting liquid flow path to the drainage path and the disinfecting liquid recovery path. Adverse effects can be reduced. Therefore, the number of times the disinfectant is reused increases and the running cost can be reduced. Further, post-treatment such as neutralization / decomposition or dilution for discarding the drained disinfectant is facilitated, and the burden on the environment can be reduced.

  In FIG. 1, the endoscope cleaning and disinfecting apparatus 2 includes a box-shaped apparatus body 10 and a lid 11 attached to the apparatus body 10 by a hinge so as to be opened and closed. The endoscope cleaning / disinfecting apparatus 2 accommodates a used endoscope 30 (see FIG. 2) in a cleaning tank 12 provided on the upper surface of the apparatus main body 10, and various types such as cleaning, disinfection, rinsing, and drying. The endoscope 30 is cleaned and sterilized and sterilized by processing.

  An operation panel 13 and a display panel 14 are disposed in front of the upper surface of the apparatus main body 10. The operation panel 13 is composed of a number of buttons for instructing settings regarding the contents of the various processes and starting / stopping cleaning. The display panel 14 displays various setting screens, remaining processing time, a warning message when a trouble occurs, and the like.

  The lid 11 is opened / closed when the used endoscope 30 is accommodated in the washing tank 12 or when the endoscope 30 after sterilization and sterilization is taken out. During the disinfection and sterilization, the lid 11 covers the opening of the cleaning tank 12 so that the cleaning water and the disinfecting liquid are not scattered outside. Further, the upper surface of the lid 11 is a transparent observation window, and it is possible to visually recognize the state of cleaning and disinfection sterilization.

  In the cleaning tank 12, there are an injection device 15, a water supply port 16 for supplying cleaning water, a disinfecting liquid supply port 17 for supplying a disinfecting liquid, a draining port 18 for draining the cleaning water, and a draining port for discharging the disinfecting liquid. 19 etc. are provided.

  The injection device 15 is arranged at the approximate center of the cleaning tank 12, and includes a cylindrical rotating body 20 and a plurality of nozzles 21 provided on the peripheral surface of the rotating body 20. At the time of cleaning the endoscope 30, the rotating body 20 is rotated and cleaning water is jetted from the nozzle 21.

  Valves (not shown) for opening and closing the drain port 18 and the drain port 19 are attached. This valve is closed when the cleaning water or the disinfecting liquid is stored in the cleaning tank 12, and is opened when the cleaning water or the disinfecting liquid is drained.

  As shown in FIG. 2, the used endoscope 30 is a state in which the hand operating unit 31 is placed in the vicinity of the coupler 32 provided on the side surface of the cleaning tank 12 and is wound around the rotating body 20. In the washing tank 12. The coupler 32 is connected to the suction button mounting port 33, the air / water supply button mounting port 34, and the forceps port 35 of the hand operation unit 31 via a tube 36. Washing water and disinfecting liquid are supplied from the coupler 32 to the air / water feeding tube, suction tube, and forceps insertion tube inside the endoscope 30 through the tube 36, thereby the inner tube of the endoscope 30. Roads are cleaned and sterilized.

  In FIG. 3, a water supply channel 40 connected to a water supply source such as a tap water tap by a hose and the like and connected to the water supply port 16 is disposed on the upper portion of the apparatus main body 10. In the middle of the water supply path 40, a first electromagnetic valve 41 that opens and closes the water supply path 40 and a filter 42 that removes germs of tap water passing through the water supply path 40 are arranged.

  When the first electromagnetic valve 41 is opened, water (tap water) from the water supply source flows into the water supply channel 40, passes through the filter 42, is sterilized, and is supplied to the cleaning tank 12 as cleaning water from the water supply port 16. The Although not shown, the nozzle 21 and the coupler 32 are connected to the water supply passage 40, and the cleaning water is also supplied to these portions.

  A disinfectant tank 43 is disposed in the lower part of the apparatus body 10. The disinfecting liquid tank 43 stores a chemical liquid (for example, glutaral, peracetic acid, acidic water, chlorine dioxide, hydrogen peroxide, etc.) used for disinfecting the endoscope 30 and supplies the disinfecting liquid connected to the disinfecting liquid supply port 17. A path 44 and a disinfectant recovery path 45 connected to the drain port 19 are connected. In the middle of the disinfectant supply path 44, a pump 46 that sucks the disinfectant in the disinfectant tank 43 toward the cleaning tank 12 is disposed.

  When the pump 46 is operated, the disinfecting liquid in the disinfecting liquid tank 43 sucked up by the pump 46 flows into the disinfecting liquid supply path 44, and this disinfecting liquid is supplied to the cleaning tank 12 from the disinfecting liquid supply port 17. Although not shown, the disinfecting liquid supply path 44 is connected to the nozzle 21 and the coupler 32 in the same manner as the water supply path 40, and the disinfecting liquid is supplied to these portions by the pump 46. It has become.

  The disinfectant recovery path 45 is connected to a drainage path 49 that connects the drainage port 19 and the external drainage port 48 via the second electromagnetic valve 47. The disinfectant recovery path 45 and the drain path 49 are opened and closed by the second electromagnetic valve 47.

  When the second electromagnetic valve 47 is operated and the disinfecting liquid collection path 45 side is opened and the drainage path 49 side is closed, the disinfecting liquid discharged from the drainage port 19 is disinfected through the disinfecting liquid collection path 45. It is collected in the liquid tank 43. Further, when the disinfecting liquid collecting path 45 side is closed and the draining path 49 side is opened, the disinfecting liquid is drained from the external draining port 48 through the draining path 49.

  Next to the drainage channel 49, a drainage channel 51 that connects the drainage port 18 and the external drainage port 50 is provided. A third electromagnetic valve 52 is arranged in the middle of the drainage channel 51. The drainage channel 51 is opened and closed by the third electromagnetic valve 52, and the channel is switched between the circulation system (not shown) side and the external drainage port 50 side.

  When the third electromagnetic valve 52 is operated and the external drain port 50 side is opened and the circulation system side is closed, the wash water drained from the drain port 18 is drained from the external drain port 50 to the outside.

  An ultrasonic vibrator 53 is fixed to the back surface of the cleaning tank 12. The ultrasonic transducer 53 is operated in a state where the cleaning water is stored in the cleaning tank 12 and the endoscope 30 is completely immersed in the cleaning water, and the ultrasonic waves are emitted to the cleaning water and attached to the endoscope 30. Clean the dirt ultrasonically. Although not shown, the cleaning tank 12 is provided with a water level sensor for detecting the upper limit water level and a safety device such as an overflow to prevent the cleaning water and the disinfectant from overflowing.

  In FIG. 4, the CPU 60 comprehensively controls the operation of each part of the endoscope cleaning / disinfecting apparatus 2. The ROM 61 stores programs and data necessary for operating the endoscope cleaning / disinfecting apparatus 2. The CPU 60 reads programs and data from the ROM 61 to the RAM 62 that is a working memory, and executes control according to various processes. Further, the CPU 60 operates each unit in accordance with an operation input from the operation panel 13 and displays a screen on the display panel 14.

  The CPU 60 closes the drain port 18 and the drain port 19 valves when storing the cleaning water and the disinfecting solution in the cleaning tank 12. When draining the washing water, the valve of the drain port 18 is opened while the valve of the drain port 19 is closed, the third electromagnetic valve 52 is operated, and the external drain port 50 side is opened, and the circulation system Let the side close. When draining the disinfectant, the valve of the drain port 19 is opened while the valve of the drain port 18 is closed, the second electromagnetic valve 47 is operated, and the disinfectant recovery path 45 side is closed, The drainage channel 49 side is opened. On the other hand, when the disinfecting liquid is collected in the disinfecting liquid tank 43, the disinfecting liquid collection path 45 side is opened and the drainage path 49 side is closed.

  Next, a processing procedure for cleaning / disinfecting the endoscope 30 by the endoscope cleaning / disinfecting apparatus 2 having the above-described configuration will be described with reference to the flowchart of FIG. After the inspection by the endoscope 30, the operator first turns on the endoscope cleaning / disinfecting apparatus 2, and lightly washes the used endoscope 30 with a sink (preliminary washing). Wash away dirt and the like adhering to the endoscope 30.

  After the preliminary cleaning, the operator winds the endoscope 30 around the rotating body 20 so that the hand operating unit 31 is positioned in the vicinity of the coupler 32, and stores the endoscope 30 in the cleaning tank 12, and the suction button mounting opening. 33, after connecting the tube 36 to the attachment port 34 of the air / water supply button and the forceps port 35, the lid 11 is closed and the operation panel 13 is operated to start the cleaning / disinfecting sterilization process.

  When the start of the cleaning / disinfecting sterilization process is instructed, in the endoscope cleaning / disinfecting apparatus 2, the injection device 15 and the first electromagnetic valve 41 are operated under the control of the CPU 60, while rotating the rotating body 20. Pre-cleaning is performed by spraying water from the nozzle 21 to clean the outer surface of the endoscope 30. Further, water is introduced into the internal conduit of the endoscope 30 through the coupler 32 and the tube 36, and the internal conduit is washed. The water used in this pre-cleaning is drained to the external drainage port 48 through the drainage port 18. At this time, the CPU 60 keeps the valve of the drain port 19 closed, opens the valve of the drain port 18, operates the third electromagnetic valve 52, opens the external drain port 50 side, and closes the circulation system side. The

  After the pre-cleaning, the first electromagnetic valve 41 is operated by the CPU 60 and the tap water from the water supply source is supplied to the cleaning tank 12 from the water supply port 16. Then, after the endoscope 30 is completely immersed in the cleaning water, the ultrasonic transducer 53 is operated under the control of the CPU 60 to emit ultrasonic waves into the cleaning water and thereby the endoscope 30. Ultrasonic cleaning is performed to remove dirt adhering to the surface. The water used in the ultrasonic cleaning is drained to the external drainage port 50 through the drainage port 18. At this time, similarly to the pre-cleaning, the valve of the drain port 18 is opened, the external drain port 50 side is opened, and the circulation system side is closed.

  After the ultrasonic cleaning, the internal conduit is cleaned in the same manner as in the pre-cleaning. Then, as before the ultrasonic cleaning, the cleaning water is supplied from the water supply port 16 to the cleaning tank 12, and the outer surface of the endoscope 30 and the cleaning tank 12 are rinsed away. The water used for rinsing is drained to the external drainage port 50 through the drainage port 18. At this time, similarly to the pre-cleaning and ultrasonic cleaning, the valve of the drain port 18 is opened, the external drain port 50 side is opened, and the circulation system side is closed.

  After rinsing, the pump 46 is operated by the CPU 60, the disinfecting liquid is supplied from the disinfecting liquid supply port 17 to the cleaning tank 12, and the endoscope 30 is completely immersed in the disinfecting liquid. Further, the disinfectant is introduced into the internal conduit of the endoscope 30 through the coupler 32 and the tube 36, and the internal conduit is disinfected.

  After immersing the endoscope 30 in the disinfecting solution for a predetermined time, the CPU 60 opens the valve of the drainage port 19 while the valve of the drainage port 18 is closed, and the second electromagnetic valve 47 is operated to discharge the The liquid channel 49 side is closed, and the disinfectant solution recovery channel 45 side is opened, and the disinfectant solution is recovered from the drain port 19 through the disinfectant solution recovery channel 45 to the disinfectant solution tank 43. On the other hand, when the efficacy of the disinfecting liquid has been deactivated, the drainage path 49 side is opened and the disinfecting liquid collection path 45 side is closed, and the external drainage port 48 passes through the drainage channel 49 from the drainage port 19. The disinfectant is drained from.

  After the disinfection, the same rinsing as that after the ultrasonic cleaning is performed twice, and the endoscope 30 is cleaned and disinfected through a drying process in which air or alcohol is supplied from the nozzle 21 or the coupler 32 by a mechanism (not shown). The sterilization process ends.

  As described above in detail, the endoscope cleaning / disinfecting apparatus 2 is provided with a path for draining the cleaning water and a path for draining the disinfecting liquid separately. Water and disinfectant will not mix.

  In addition, in the said embodiment, although the drain outlet 18 and the drain outlet 19 are provided in the same height, as shown in FIG. 6, the inclined surface 70 which goes down toward the drain outlet 18 from the drain outlet 19 is formed. The drain port 18 is preferably provided at a position lower than the drain port 19. In this way, since the washing water near the drainage port 19 is guided toward the drainage port 18, the residual water can be reliably removed, and the dilution of the disinfectant solution with the residual water can be further suppressed.

  In the above embodiment, the spraying device 15 is provided as a pre-cleaning device, but instead or in addition to this, a spray nozzle may be provided in the four sides of the cleaning tank 12. Further, a mechanism for supplying an enzyme detergent to the cleaning tank 12 or a mechanism for generating a microvalve may be provided, and can be appropriately added and changed according to the specifications of the apparatus.

It is a perspective view which shows schematic structure of the washing | cleaning disinfection apparatus for endoscopes. It is a top view which shows a mode that the endoscope was accommodated in the washing tank. It is a top view which shows the structure inside an apparatus main body. It is a block diagram which shows the electric constitution of the washing | cleaning disinfection apparatus for endoscopes. It is a flowchart which shows the process sequence of a washing | cleaning and disinfection sterilization process. It is a partial top view which shows the example which provided the drain outlet in the position lower than a drain outlet. It is a perspective view which shows schematic structure of the conventional washing | cleaning disinfection apparatus for endoscopes.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 Endoscope washing | cleaning disinfection apparatus 10 Apparatus main body 12 Cleaning tank 18 Drain outlet 19 Drain outlet 30 Endoscope 43 Disinfectant tank 45 Disinfectant collection path 47 2nd solenoid valve 48 External drain outlet 49 Drain path 50 External Drain port 51 Drain channel 60 CPU

Claims (2)

In the endoscope cleaning and disinfecting device for cleaning and disinfecting the endoscope housed in the cleaning tank,
A drain port provided in the cleaning tank, an external drain port for draining the cleaning water to the outside, and a drain channel connecting them,
Provided separately from the drain port, the external drain port, and the drain channel, the drain port provided in the cleaning tank, the external drain port for draining the disinfectant to the outside, and the drain fluid connecting these Road,
A disinfecting liquid tank that stores the disinfecting liquid and a disinfecting liquid recovery path that connects the drainage path;
An endoscope cleaning / disinfecting apparatus comprising: a switching valve for switching the disinfecting liquid flow path to the draining liquid path and the disinfecting liquid recovery path. The endoscope cleaning and disinfecting apparatus according to claim 1, wherein the drain port is provided at a position lower than the drain port.

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