KR101733805B1

KR101733805B1 - Washing and disinfecting apparatus

Info

Publication number: KR101733805B1
Application number: KR1020100046731A
Authority: KR
Inventors: 미츠히코 세리자와; 겐이치 오타니; 다카유키 이이다
Original assignee: 후지필름 가부시키가이샤
Priority date: 2009-06-09
Filing date: 2010-05-19
Publication date: 2017-05-08
Also published as: KR20100132435A; JP5160506B2; CN101920249A; JP2010284213A; CN101920249B

Abstract

The cleaning and disinfecting device is provided with a lid for opening and closing by a motor. When the lid is opened, the motor starts driving at a low speed. This motor temporarily stops after the sealing of the lid is released. After a pause, the motor is driven at high speed to quickly move the lid to the open position. The load for opening the lid is large during the time until the sealing of the lid is released. Since the motor has a small torque, it is driven at a low speed in a section where the load is large.

Description

[0001] WASHING AND DISINFECTING APPARATUS [0002]

The present invention relates to a cleaning and disinfecting apparatus for cleaning and disinfecting a medical instrument such as an endoscope.

The endoscope is cleaned and disinfected by a cleaning and disinfecting device immediately after use to prevent infection of pathogenic bacteria. The cleaning / disinfecting apparatus is provided with a medical instrument, for example, a washing tub in which an endoscope is housed. The cleaning tank is provided with an opening for inserting and receiving medical instruments thereon, and a cleaning liquid for rinsing the endoscope, water for rinsing and disinfecting liquid for sterilizing are supplied. The opening is opened and closed by a lid that is freely openable and closable to the apparatus main body through a hinge to prevent the washing liquid or water from scattering out of the washing tub.

The used endoscope is picked up by the hospital staff and transferred to the sanitizer. When the endoscope is housed in the cleaning tank, the hospital staff is holding the endoscope with both hands and can not open the lid with the hand. Japanese Patent No. 3458081 discloses a washing and disinfecting device having a spring for elastically supporting the lid in the opening direction, a locking mechanism for locking the lid at the closing position, and a releasing mechanism for releasing the locking mechanism by depressing the foot switch, . In this cleaning and disinfecting apparatus, the lid can be opened without using a hand by depressing the foot switch. Since the hand is freed after the endoscope is housed in the cleaning tank, the closing operation of the lid is performed by hand.

On the other hand, during the cleaning process, the cleaning liquid or water is sprayed in the cleaning tank and the water flow accompanying the cleaning liquid is generated. Therefore, if there is a gap between the lid and the opening, the cleaning liquid or water is scattered to the outside. During the disinfection process, the endoscope is immersed in the disinfectant in the washing tub. Since the disinfecting liquid uses acetic acid or the like which gives off a very nasty odor, if there is a gap between the lid and the opening, the odor leaks from the gap to the outside. For this reason, as described in Japanese Patent Application Laid-Open No. 2006-6566, a packing made of an elastic member such as rubber, for example, is attached to the outer edge of the lid, and the packing is attached to the peripheral edge of the opening of the cleaning tank, Tightly and tightly.

In the conventional cleaning and disinfecting apparatus, the lid is opened by a foot switch operation, but the lid can not be closed by a foot switch operation. The endoscope is attached to the hand holding the used endoscope. Therefore, many hospital staff use the elbows to close the lid so that the palms and fingertips do not touch the lid in consideration of preventing infection. In order to improve the closing operation of the lid, it is desired to close the lid without using a hand.

In addition to the opening operation, in order to perform the closing operation by the foot switch, a driving mechanism for opening and closing the lid by the operation of the foot switch is required. In addition to the releasing mechanism of the conventional lock mechanism, if the closing operation is also mechanically opened using a wire or the like, there arises a problem that the number of parts increases and the space for arranging parts increases.

Therefore, it is preferable to open and close the lid by the power of the electric actuator such as a motor, not by a driving force. In this case, since a large torque is required to open the cover, an electric actuator with a large power is required. This leads to an increase in cost, which is an obstacle to employing electric actuators.

That is, in the cleaning / disinfecting apparatus, since the inside of the cleaning tank is sealed when the lid is in the closed position, during the period from the start of opening operation of the lid, that is, until the sealing by the packing is released, The outside air is introduced into the washing tank. Since the deodorizing filter is disposed in the vent hole as a countermeasure against odor, the ventilation resistance of the vent hole is large. Since the ventilation resistance increases in proportion to the square of the opening speed of the lid, if the opening speed of the lid is increased, a large torque is required. The electric actuator of the large torque becomes expensive and becomes large, which leads to an increase in cost and an increase in the space for installation.

In the opening operation of the lid, although the torque can be reduced by driving the electric actuator at a low speed, since the opening speed of the lid is slow, the time until the lid is opened is long. When the time is long, the psychological stress is given to the hospital staff who is required to work quickly, so there is a limit to lowering the opening speed of the cover.

Disclosure of the Invention A principal object of the present invention is to provide a cleaning and disinfecting device capable of opening and closing a lid with a low-torque electric actuator.

Another object of the present invention is to provide a cleaning and disinfecting device capable of opening a lid at a low cost and in a short time.

In order to achieve the above object and other objects, the cleaning and disinfecting apparatus of the present invention includes a cleaning tank, a ventilation path, a deodorizing filter, a lid of the cleaning tank, an electric actuator and a controller. The used medical instrument is stored in the cleaning tank. The ventilation path allows gas to flow between the inside and outside of the cleaning tank. The deodorizing filter removes odors from the gas flowing through the ventilation duct. The cover exposes the opening of the cleaning tank at the open position and closes the opening at the closed position. The electric actuator moves the lid between the closed position and the open position. The controller controls the driving speed of the electric actuator in accordance with the opening speed of the lid.

The controller drives the electric actuator at a low speed such that the opening speed of the lid is reduced from the closed position to a position where the lid is closed. In addition, the controller drives the electric actuator at a high speed from the position where the lid is released from the closed position to the open position, so that the opening speed of the lid is increased.

Preferably, the controller operates the electric actuator so that the opening operation of the lid is temporarily stopped at a position where the sealing of the lid is released.

In the low-speed drive, the electric actuator is driven at a constant speed. The high-speed drive includes an acceleration section for accelerating to a predetermined speed and a deceleration section for decelerating and stopping at the predetermined speed.

The controller preferably changes the closing speed of the lid during closing operation of the lid. For example, the closing speed of the lid is reduced immediately before reaching the closing position of the lid. Preferably, after reaching the closing position of the lid, surplus conveyance driving is performed in which the driving of the electric actuator is continued for a predetermined time. It is preferable that, when the closing operation of the lid is finished, the opening preparation drive for driving the electric actuator in the reverse direction for a predetermined time is performed.

The lid is mounted so as to freely open and close in the cleaning tank so as to rotate with the rear end portion serving as a supporting point. The deodorization filter is mounted on the lid. The lid has a substantially flat plate shape, and a reinforcing rib is formed on a surface facing the cleansing tank. The reinforcing ribs are formed on the rear side of the front cover. The cleaning tank is provided with a foot switch for giving an instruction to the controller to open and close the lid.

According to the present invention, since the opening speed of the lid is changed so that the speed after the sealing is released is higher than before the sealing by the lid is released, the electric actuator with small torque, small size and low cost can be used. Further, in the section in which the load is small, the lid can be opened for a short time because the opening speed of the lid is increased.

The objects and advantages of the present invention can be readily understood by those skilled in the art by reading the preferred embodiments of the present invention with reference to the accompanying drawings.
1 is a perspective view of a cleaning and disinfecting apparatus of the present invention.
Fig. 2 is a perspective view of a cleaning and disinfecting device with a top cover opened. Fig.
3 is a perspective view of the upper part of the washing and disinfecting device with the filter cover opened.
4 is an explanatory cross-sectional view showing a structure of an air passage.
5 is a plan view showing the bottom surface of the top cover.
6 is a perspective view of a main part showing a state in which the top cover is in the open position;
7 is a perspective view of a main portion showing a state in which the top cover is in the temporary stop position;
8 is an explanatory view showing a state in which the top cover is in the closed position;
9 is an explanatory diagram showing a state in which the top cover is in the temporary stop position.
10 is an explanatory view showing a state in which the top cover is in the open position;
11 is a block diagram showing an outline of an electrical configuration.
12 is a chart showing a driving sequence in the opening operation.
13 is a chart showing a drive sequence in the closing operation.
Fig. 14 is an explanatory view showing the state of the top cover after excess feed driving; Fig.
Fig. 15 is an explanatory diagram showing the state of the top cover after the opening preparation drive. Fig.
16 is a flowchart showing an operation procedure of the cleaning and disinfecting apparatus.
17 is a chart showing a drive sequence in the case where no pause is performed during the opening operation.

As shown in Figs. 1 and 2, an endoscope washing and disinfecting device (hereinafter referred to as a cleaning and disinfecting device) 10 is provided with a box-shaped device main body 11. An upper portion of the apparatus main body 11 is provided with a cleaning tank 13 that accommodates the used endoscope 12 and is supplied with a cleaning liquid or a disinfectant liquid. The cleaning tank 13 is a water tank which is opened at the top, and is made of a metal material having excellent heat resistance and corrosion resistance, for example, stainless steel. The apparatus main body 11 is formed so as to freely open and close the top cover 16 and functions as a lid covering the opening 13a of the cleaning tank 13. [

The apparatus main body 11 has a chassis (not shown). In addition to the cleaning tank 13 and the top cover 16, a cleaning / disinfecting mechanism 83 (see FIG. 11) for performing a cleaning / disinfecting process is mounted on the chassis. The cleaning / disinfecting mechanism 83 comprises a pipe for supplying the cleaning liquid or the disinfectant to the cleaning tank 13, a pump solenoid valve, and a tank for storing the disinfectant liquid. The outer periphery of the chassis is covered with an exterior member made up of a front panel 17, a side panel 18, and an upper panel 19.

The inner circumferential shape of the cleaning tank 13, when viewed from above, has a substantially semicircular front portion and a substantially rectangular rear portion (see Fig. 5). A substantially circular net 21 on which the endoscope 12 is mounted is disposed on the bottom surface of the front portion. The net 21 makes a gap for allowing liquid to flow between the endoscope 12 and the bottom surface and increases the area in which the liquid supplied to the cleaning tank 13 contacts the outer surface of the endoscope 12. [

At the center of the net 21, there is disposed a food cleaning basket 22 for accommodating small items such as a sending / receiving button and a suction button removed from the endoscope 12. A spray nozzle 23 and a temperature sensor (not shown) are disposed in the vicinity of the basket 22 for cleaning the goods. The injection nozzle 23 injects water toward the top cover 16 positioned above. The temperature sensor measures the liquid temperature in the cleaning bath (13). A heater (not shown) for heating the liquid in the cleaning tank 13 is formed under the cleaning tank 13. This heater is controlled by the temperature measured by the temperature sensor.

The endoscope 12 is mounted on the net 21 in a state in which the insertion portion and the universal cord 12a to be inserted into the body to be inspected are wrapped around and around the food washing basket 22. [ The universal code 12a is a code to be connected to a processor device for processing an image pickup signal from the endoscope 12 and to a light source device for inputting illumination light to the light guide in the endoscope 12. [ At one end of the universal cord 12a, a connector for connecting to the processor device and the light source device is formed. During the cleaning of the endoscope 12, the waterproof cap is mounted on the connector.

A waste liquid port 26 is formed on the bottom surface of the rear portion of the cleaning tank 13, and a liquid level sensor 27 is formed on the side surface. The waste liquid port (26) discharges the used water, the cleaning liquid, and the disinfectant liquid from the cleaning tank (13). The liquid level sensor 27 is, for example, a float type level sensor in which the float moves up and down according to the liquid level, and detects the liquid level position of the liquid collected in the cleaning tank 13. [

At the rear portion of the cleaning tank 13, terrace portions 13b and 13c higher than the bottom surface of the cleaning tank 13 are formed. Each of the terrace portions 13b and 13c is formed at two corners of the rear portion, and has a substantially triangular shape when viewed from above. An airtightness test port 28 is formed in one of the terrace portions 13b. The airtightness test port 28 is a port for testing the insertion of the endoscope 10 and the test for the occurrence of small holes or cracks that may cause liquid to enter the outer skin by sending compressed air to the gap between the outer surface of the universal cord and the interior. to be. The airtightness test port 28 is connected to a tightness test hole formed in the connector of the universal cord 12a through a tube (not shown).

A supply port for supplying the liquid used for cleaning and disinfection of the endoscope 12 into the cleaning tank 13 is formed in the terrace portion 13b. A supply nozzle 29a, a disinfectant supply nozzle 29b, and a detergent supply nozzle 29c bent toward the inside of the cleaning tank 13 are formed in the supply port. These nozzles 29a to 29c are arranged at positions higher than the liquid level of the liquid collected in the cleaning tank 13. [

The water supply nozzle (29a) supplies water into the cleaning tank (13). The detergent supply nozzle 29c supplies the detergent stored in the detergent tank into the cleaning tank 13. The body fluids and dirt attached to the used endoscope 12 are washed away by a cleaning liquid in which water and detergent are mixed. The disinfectant supply nozzle 29b supplies the disinfectant solution stored in the disinfectant tank into the cleaning bath 13. Pathogens or viruses that are not washed out by the washing liquid are sterilized by a disinfectant.

A suction port 31 is formed in the side surface of the terrace portion 13b for sucking and circulating the liquid collected in the cleaning tank 13 so as to cause a water flow in the liquid in the cleaning tank 13. [ The water supply nozzle 29a is also used as a circulation nozzle so that the liquid sucked from the suction port 31 passes through the pipe and is supplied from the water supply nozzle 29a to the cleaning tank 13 again.

A channel cleaning port 32 used for cleaning and disinfecting in the air supply / reception channel, suction channel, and forceps channel of the endoscope 12 is formed in the terrace portion 13c. The channel cleaning port 32 is formed with a coupler for a sending / receiving channel and a coupler for a suction channel. Each of the couplers is connected to a mounting hole of each of the air supply / reception button and the suction button formed on the endoscope 12 through a connection tube (not shown). The channel cleaning port 32 supplies liquids and gases such as water, cleaning liquid, disinfectant liquid, alcohol, and compressed air into the air supply / discharge channel, the forceps channel, and the suction channel.

The front panel 17 of the apparatus main body 11 is mounted on the chassis so that the side end portion can freely be opened and closed through a hinge. A storage tray (not shown) is formed in the front panel 17. A detergent tank and an alcohol tank are housed in the storage tray. The detergent tank stores the detergent used for cleaning the endoscope 12. Alcohol flowing into each channel such as a forceps channel is stored in the alcohol tank for dehydration after cleaning and disinfection of the endoscope 12. The front panel 17 is provided with a transparent window 33 for viewing the remaining amount of liquid in each tank.

In addition, a supply bottle storing a concentrate of a disinfectant (for example, peracetic acid, glutaraldehyde (GA), ortophthalaldehyde (OPA), etc.) is stored in the storage tray so as to be exchangeable. The supply bottle is connected to the disinfectant tank installed in the chassis, and supplies the concentrate into the disinfectant tank. The concentrate is diluted with water in a disinfectant tank and used.

Reference numeral 34 denotes a discharge port for discharging the print on which the cleaning history information is printed. The cleaning history information is information such as, for example, the date and time of cleaning, the person in charge of cleaning, the ID of the cleaned endoscope 12, and the like. The print on which the cleaning history information is printed is used for confirmation and management of the cleaning / disinfecting result of the endoscope 12.

An operation portion 36 is formed at a front end portion of the upper panel 19. The operation unit 36 is provided with an operation button 37 for inputting various operation instructions, a display 38 for performing various displays, and a reading unit 39. [ The operation buttons and operation keys include, for example, a start button for instructing the start of cleaning and disinfection, a stop button for instructing emergency stop, and an operation key for operating an operation screen displayed on the display 38. [ The display 38 is, for example, a liquid crystal display (LCD), which displays an operation screen including a selection screen for selecting a cleaning / disinfection processing menu or a setting screen for performing various settings, Progress status, remaining time, and warning message when a trouble occurs.

The reading unit 39 has a tag reader (not shown) disposed therein. The tag reader communicates with the RFID tag formed on the endoscope 12 or the RFID tag formed on the nameplate of the person in charge of cleaning to read the information in the RFID tag (the ID of the endoscope 12, the person in charge of cleaning, etc.).

The upper panel 19 is of a frame type in which an opening 19a corresponding to the cleaning tank 13 is formed. A peripheral edge portion 13d extending in the horizontal direction perpendicular to the vertically standing side surface of the cleaning tank 13 is formed at the upper end of the opening 13a of the cleaning tank 13. The peripheral edge portion 13d and the upper panel 19 are bonded to each other so as not to cause a gap in which gas or liquid leaks from the boundary between the two. An inclined surface 19b inclined toward the opening 13a of the cleaning tank 13 is formed on the inner edge of the opening 19a of the upper panel 19 so that the liquid flows toward the cleaning tank 13 by the action of gravity. Respectively.

The top cover 16 is composed of, for example, a cover body 41 which is a substantially rectangular plate formed of, for example, plastic, and a packing 42 mounted on the outer peripheral portion of the lower surface of the cover body 41. The top cover 16 is provided with a mounting portion 43 protruding from the rear of the cover main body 41 mounted on the apparatus main body 11 and supporting the opening portion 13a of the cleaning tank 13 , And an open position for opening the opening 13a. The closed position is a position where the top cover 16 is horizontal, and the open position is an angle of about 70 degrees measured by the top cover 16 in the closed position.

The top cover 16 is electrically opened and closed by an electric actuator, for example, a motor 92 (see Fig. 11). The operation instruction of opening and closing is made by depressing the foot switch 44. The foot switch 44 is disposed below the front panel 17 and has a pedal shape. When the top cover 16 is closed, the top cover 16 is opened when the foot switch 44 is pressed. When the top cover 16 is open, the top cover 16 is closed when the foot switch 44 is depressed.

The upper surface of the top cover 16 has a smooth and gentle curved surface for easy cleaning. A net 46 is formed in the front portion of the lower surface of the top cover 16. [ The net 46 is disposed at a position facing the net 21 disposed on the bottom surface of the cleaning tank 13 when the top cover 16 is closed. The net 46 presses the endoscope 12 housed in the cleaning tank 13 from above and sinks the endoscope 12 down to the liquid surface.

The cover main body 41 is formed of, for example, a transparent or translucent plastic material so that the inside of the cleaning bath 13 can be visually recognized from the outside. The packing 42 is made of an elastic material such as rubber and hermetically and watertightly closes the opening 13a of the cleaning tank 13. [ The packing 42 is in contact with the inner peripheral surface of the peripheral edge portion 13d of the cleaning tank 13 and the opening 19a of the upper panel 19 so that the liquid supplied to the cleaning tank 13 leaks to the outside, Prevents odor of the disinfectant solution from leaking to the outside.

3 and 4, in the rear portion of the top cover 16, an air passage 48 communicating with the inside and outside of the cleaning tank 13 is formed. The opening 13a of the cleaning tank 13 is sealed by the packing 42. [ Therefore, when the liquid in the cleaning tank 13 is discharged from the waste liquid port 26 and the suction port 31 in the state where the top cover 16 is closed, the liquid is discharged from the outside through the vent path 48 to the cleaning tank 13 ) Into the air. That is, since the opening portion 13a is closed by the packing 42 at the beginning of the opening operation of the top cover 16, when the top cover 16 rotates in the opening direction while maintaining this closing, (13) The inside becomes negative pressure. The air enters the cleaning tank 13 from the outside through the ventilation path 48 until the sealing of the opening 13a by the packing 42 is released. As a result, the pressure difference between the inside and outside of the cleaning tank 13 is canceled, and the top cover 16 can rotate in the opening direction.

On the top surface of the top cover 16, there is formed a filter chamber 51 to which the deodorization filter 49 can be exchanged. The filter chamber (51) is located in the air passage (48). The deodorization filter 49 is installed in the filter chamber 51 so as to cover the slit 51a from above and removes the odor of the gas exhausted to the outside through the ventilation path 48 in the washing tub 13. The deodorization filter 49 is, for example, a sponge-like porous material filled with a deodorant such as activated carbon, and has a large ventilation resistance.

The filter chamber 51 is formed so as to freely open and close a filter cover 52 that covers the deodorization filter 49. A plurality of slits 52a are formed in the filter cover 52. These slits 52a together with the slits 51a constitute an air passage 48. [ The slit 51a is formed in a crank shape in cross section to prevent the liquid in the washing tub 13 from directly adhering to the deodorization filter 49. [

5, an abutting portion 54 is formed on the lower surface of the cover main body 41 of the top cover 16 on both sides of the front portion thereof. The abutting portion 54 receives the peripheral portion 13d of the cleaning tank 13 and defines the closed position of the top cover 16 when the top cover 16 is closed. The height of the abutment portion 54 is determined so that the abutment portion 54 comes into contact with the peripheral edge portion 13d in a state where the packing 42 is in pressure contact with the peripheral edge portion 13d.

A first rib 56, a second rib 57 and a third rib 58 are formed in the cover main body 41 so as to protrude from the lower surface in a substantially vertical direction. The primary function of the first to third ribs 56 to 58 is to enhance the rigidity of the cover main body 41. As described above, the cover main body 41 has a substantially flat plate shape with a smooth upper surface and a curved surface. When the cover body 41 having such a shape is driven by the motor 92 with its one end serving as a fulcrum, the rigidity of the cover body 41 is insufficient. If the rigidity is insufficient, the vibration during the rotational motion becomes large, and the load of the motor 92 becomes large. The first to third ribs 56 to 58 are formed to enhance the rigidity of the cover main body 41.

Since the mounting portion 43 formed at the rear end of the cover main body 41 rotates as a supporting point, it is necessary to increase the rigidity of the rear portion of the cover body 41 relative to the front portion. Therefore, many.

The first rib 56 has a shape substantially conforming to the inner periphery of the opening 13a of the cleaning bath 13. A net 46 is mounted on a substantially circular front portion of the first rib 56. The first rib 56 enters the opening 13a and has a height enough to reach the upper surface of the terrace portions 13b and 13c. The water in the cleaning tank 13 is surrounded by the first rib 56 surrounding the main part of the cleaning tank 13 because the water is large and the liquid spills out during cleaning or rinsing, It is prevented from being scattered toward the peripheral edge portion.

A transverse rib 56a extending in the transverse direction is disposed in the first rib 56 immediately in front of the slit 51a. The transverse rib 56a is provided in the slit 51a to prevent water from splashing on the slit 51a. It plays a role. In addition, the lateral ribs 56a are inclined such that both ends of the lateral ribs 56a are retracted rearward toward the center. 6, when the top cover 16 is opened and the front end of the top cover 16 is floated upward, the droplets flowing from the front to the back on the lower surface of the cover main body 41 are collected at the center, 13).

The rear portion of the first rib 56 is formed with an abutting portion 56b abutting against the upper surface of the terrace portions 13b and 13c when the top cover 16 is closed. The abutting portion 56b functions as a stopper for defining the closing position of the top cover 16 together with the abutting portion 54. [ The notch 56c is for avoiding the water supply nozzle 29a. The concave portion 56d curved in a semicircular shape serves to avoid the liquid level sensor 27. [

The height of the second rib 57 is lower than that of the first rib 56. The second rib 57 is composed of transverse ribs 57a extending transversely on both sides of the slit 51a and transverse ribs 57b extending transversely of the rear of the slit 51a. The second rib 57 is provided with four transverse ribs 57a at the center thereof to increase the density of the ribs as compared with the first ribs 56. [

A third rib 58 is formed in the mounting portion 43 and a vicinity thereof. The third rib 58 has a plurality of transverse ribs 58a extending in the transverse direction and a transverse rib 58b transverse to the transverse ribs 58a, Consists of. The number of the lateral ribs 58a of the third rib 58 is larger than that of the lateral ribs 57a of the second rib 57 so that the arrangement pitch thereof is narrower than that of the second rib 57.

A metal plate (indicated by two-dot chain line) 61 is attached to the mounting portion 43 so as to cover the third ribs 58. The metal plate 61 functions as a reinforcing member for securing the rigidity of the top cover 16 and also functions as a cover for covering the third ribs 58. [ Since the third ribs 58 are arranged in a lattice shape, it is difficult to clean the gap between the ribs. Therefore, the third ribs 58 are covered with the metal plate 61 so that the droplets do not enter the gaps.

In the packing 42, a droplet prevention portion 59 is formed at a plurality of points in the second half portion. There is a high possibility that a liquid droplet flows to the outside of the cleaning tank 13 such that the liquid droplet is turned into the mounting portion 43 of the top cover 16 and dropped onto the outer side of the inclined surface 19b. 6, the droplet prevention portion 59 stops the droplet flowing from the front portion by riding on the packing 42 when the top cover 16 is opened, so that the cleaning liquid in the cleaning tank 13 and the upper panel 19 To be inclined to the inclined surface 19b.

The top cover 16 is temporarily stopped at a position where the opening angle is about 10 degrees, as shown in Fig. 7, during an opening operation in which the top cover 16 rotates from the closed position toward the open position (see Fig. 6). The temporary stop position is a position in which all of the packing 42 (from the front end to the rear end) is away from the opening 13a and the opening 19a. The sealing of the opening 13a and the opening 19a by the packing 42 is released and the outside air can be introduced into the washing tub 13 through the opening 13 and the opening 19 at the temporary stop position .

The bottom surface of the top cover 16 and the opening 13a of the cleaning tank 13 substantially face each other at the stop position so that the top cover 16 is stopped at this position, So that the dropped droplet can be dropped into the cleaning bath 13. Since the top cover 16 is thus removed from the top cover 16, the centrifugal force when the top cover 16 rotates from the temporary stop position to the open position or the vibration when the top cover 16 stops at the open position, (13).

The vibration of the top cover 16, which occurs when the sealing of the packing 42, the opening 13a and the opening 19a is released by the temporary stop, is converged. The vibration of the top cover 16 is caused by the following two causes. The openings 13a and the openings 19a are sealed by the packing 42 at the beginning of the opening operation of the top cover 16 so that the introduction port of the outside air is limited to the air passage 48. [ Since the deodorization filter 49 having a large ventilation resistance is formed in the vent path 48, the inflow amount of the outside air is not sufficient and the inside of the cleaning tank 13 becomes negative pressure against the outside air.

The pressure difference inside and outside the cleaning tank 13 becomes high just before the top cover 16 starts to rotate from the closed position and the contact between the packing 42 and the opening 13a and the opening 19a is released. The outside air flows smoothly from the opening 13a immediately after the release of the sealing is started. For this reason, the top cover 16 vibrates largely by the reaction thereof. This is the first cause of vibration generation.

The side surface of the packing 42 is in contact with the inner edge of the opening 19a of the upper panel 19 even after the lower surface thereof is away from the peripheral edge 13d of the cleaning tank 13. [ The frictional force between the packing 42 and the top panel 19 acts as a resistance to the opening action of the top cover 16. [ Therefore, immediately after the packing 42 is moved away from the upper panel 19 and the sealing is released, the top cover 16 is vibrated by the recoil with which the frictional force is lost. This is the second cause of vibration generation.

Since the top cover 16 has increased rigidity by forming the first to third ribs 56 to 58 as a countermeasure for suppressing such vibration, the top cover 16, which is formed when the sealing is released, Vibration is reduced, but vibration can not be completely eliminated. When the top cover 16 is vibrated and rotated to the open position, the load on the motor 92 is increased, so that the vibration is further converged by temporarily stopping to reduce the load on the motor 92.

As shown in Figs. 8 to 10, the top cover 16 rotates around a rotary shaft 66 connected to the mounting portion 43. As shown in Fig. The rotary motion shaft 66 is supported at both ends by a bearing plate 67 formed in the chassis of the apparatus main body 11. [ An arm 68 is provided on the mounting portion 43 of the top cover 16 and is disposed behind the rotary shaft 66 and rotatable together with the top cover 16. [

One end of a tension spring 69 is mounted on the arm 68. The other end of the tension spring 69 is attached to the bearing plate 67 and elastically supports the top cover 16 so as to rotate in the clockwise direction toward the open position. In the opening operation of the top cover 16, the self weight of the top cover 16 acts in a direction opposite to the torque for rotating the top cover 16, so that a larger torque is required compared with the closing operation . The tension spring 69 elastically supports the top cover 16 toward the open position, thereby reducing the torque required for the opening operation.

An engagement portion 68a for engaging with a solenoid 71 formed in the apparatus main body 11 is formed at the tip of the arm 68. [ The solenoid 71 constitutes a part of the lock mechanism 84 (see Fig. 12) that locks the top cover 16 in the closed position. The plunger 71a of the solenoid 71 enters the movement path of the engaging portion 68a and the arm 68 rotates in the clockwise direction when the top cover 16 is in the closed position, Regulate exercise. The lock mechanism 84 operates when an instruction to start the cleaning / disinfecting process is given to lock the top cover 16 in the closed position to prevent the top cover 16 from being inadvertently opened during the cleaning / disinfecting process.

The bearing plate 67 is provided with a closed position sensor 72, a pause position sensor 73, an open position sensor 74, and an open position sensor 74 in order to detect the position of each of the closed position, Respectively. As each of the position sensors 72 to 74, for example, a photosensor is used. The arm 68 is provided with markers 77 which are detected by the respective position sensors 72 to 74. Each of the position sensors 72 to 74 is turned ON when it is opposed to the marker 77 at the positions of the closed position, the pause position and the open position of the top cover 16 and outputs a detection signal of H level.

As shown in Fig. 11, in the cleaning and disinfecting apparatus 10, each portion of the apparatus is controlled by the CPU 81 in a centralized manner. A memory 82 is connected to the CPU 81. [ The memory 82 comprises a ROM in which a control program and various setting information are stored, and a RAM which is a work area when the CPU 81 loads a program from the ROM and executes the program. The cleaning and disinfecting mechanism 83 includes a pump for supplying and draining the cleaning tank 13, a motorized valve for switching the path of the pipe, a liquid level sensor 27, a temperature sensor, and various drivers . The lock mechanism 84 is constituted by a solenoid 71 and a driver for driving the solenoid 71. [

The CPU 81 controls the cleaning / disinfecting mechanism 83 and the lock mechanism 84 by executing a control program by inputting an operation instruction from an operation button or an operation key of the operation unit 36. [ The CPU 81 controls the open / close mechanism 86 of the top cover 16 by inputting an operation instruction from the foot switch 44. [

The opening and closing mechanism 86 includes a motor driver 91, a motor 92, a torque limiter 93, and respective position sensors 72 to 74. As the motor 92, for example, a pulse motor whose rotation amount is controlled in accordance with the number of pulses is used. The CPU 81 functions as a controller and controls the rotation direction, the rotation amount, and the rotation speed with respect to the motor driver 91. [ The motor driver 91 generates a pulse according to the control signal and gives it to the motor 92 as a drive signal.

The torque limiter 93 is mounted on the output shaft of the motor 92. The torque limiter 93 is constituted by, for example, an outer ring and a pressure contact body which is in pressure contact with the inner periphery thereof. The torque limiter 93 transmits the torque of the motor 92 to the rotary shaft 66 using the friction between the outer ring and the inner periphery thereof, The outer ring and the pressure contact body are slitted when the load from the outer ring 66 exceeds the upper limit value of the frictional force, thereby blocking the transmission of the torque from the motor 92 to the rotary shaft 66. As a result, an excessive torque is prevented from being transmitted to the top cover 16.

The CPU 81 determines the position of the top cover 16 based on the detection signals from the respective position sensors 72 to 74. When the foot switch 44 is operated, an operation signal is inputted to the CPU 81. [ When the top cover 16 is in the closed position, the closed position sensor 72 is turned ON to output a detection signal. When the top cover 16 is in the open position, the open position sensor 74 is turned ON to output a detection signal. Based on this detection signal, the CPU 81 determines that the top cover 16 is in the closed position or the open position. When it is determined that the CPU 81 is in the closed position, the CPU 81 gives the control signal in accordance with the opening operation to the motor driver 91. [ On the other hand, when it is determined that the vehicle is in the open position, the CPU 81 gives a control signal in accordance with the closing operation.

In Fig. 12 showing the drive sequence of the motor in the opening operation, the vertical axis indicates the rotational speed of the motor 92 and the horizontal axis indicates the driving time (PPS: pulse per second). The rotation speed of the motor 92 corresponds to the opening / closing speed of the top cover 16. [ In the beginning of the opening operation, the motor 92 is driven at a constant speed of about 400 PPS, and at the opening speed, the top cover 16 starts to rotate from the closed position shown in Fig. 8 to the open position .

At the beginning of the opening operation of the top cover 16, outside air is taken into the cleaning tank 13 from the air passage 48 until the sealing of the packing 42 and the opening 13a is released. Since the ventilation path 48 is formed with the deodorization filter 49, the ventilation resistance is increased, and if the opening speed of the top cover 16 is increased, the ventilation resistance is increased in proportion to the square, so that a large torque is required. At the beginning of the opening operation of the top cover 16, the load on the motor 92 is reduced by driving the motor 92 at a low speed. During low-speed driving, the motor 92 is driven at a constant speed.

During this low-speed driving, release of sealing of the packing 42, the opening 13a, and the opening 19a is started. As the top cover 16 rotates in the opening direction, the lower surface of the packing 42 moves away from the peripheral edge portion 13d in order from the front to the back, and releases the sealing of the opening 13a. Then, the side surface of the packing 42 is away from the opening 19a. Thus, the sealing of the opening 13a and the opening 19a is released. When the top cover 16 reaches the pause position after the sealing is released, the CPU 81 receives the detection signal from the pause position sensor 73. [ The CPU 81 stops the rotation of the motor 92 to temporarily stop the top cover 16 at the position shown in Fig. By this temporary stop, moisture is removed from the top cover 16 and the vibration is converged.

The CPU 81 measures the pause time using a system timer. When the system timer indicates a temporary stop time, a control signal is given to the motor driver 91 to restart the rotation of the motor 92. [ After the rotation is restarted, the motor 92 is driven at a high speed. This high-speed drive has an acceleration section accelerated from the initial velocity to the maximum velocity, a constant velocity section driven at a constant velocity after the acceleration section, and a deceleration section decelerated after the constant velocity section. Since the speed change of the top cover 16 is moderated by the acceleration section and the deceleration section, the vibration of the top cover 16 during high-speed driving is suppressed.

Specifically, the initial speed is about 800 PPS, and the rotation speed is gradually increased from the initial speed to the maximum speed of about 1300 PPS. The motor 92 is driven at this maximum speed for a predetermined time. In this example, the high-speed drive is driven at a speed near to about three times the speed range of the low-speed drive.

When the top cover 16 is close to the open position, the open position sensor 74 is turned ON to output a detection signal. When the CPU 81 receives the detection signal from the open position sensor 74, the CPU 81 stops the rotation of the motor 92 while decelerating the rotation thereof.

The top cover 16 is temporarily stopped after the open position sensor 74 detects the top cover 16. Since the marker 77 is also opposed to the open position sensor 74 in this state, The detection signal is continuously output from the position sensor 74.

As shown in Fig. 13, at the start of the closing operation, the CPU 81 drives the motor 92 at a high speed without causing the low-speed driving such as the opening operation to be performed. The initial speed and the maximum speed of the motor 92 are the same as in the case of the open operation. The top cover 16 reaches the pause position on the way toward the closed position but does not stop at the pause position in the closing operation. When the top cover 16 passes the temporary stop position, the temporary stop position sensor 73 is turned ON to output a detection signal. When the CPU 81 receives this detection signal, the CPU 81 starts decelerating the motor 92.

In this deceleration section, the packing 42 of the top cover 16 starts to come in contact with the inner periphery of the opening 19a of the upper panel 19 from the rear portion thereof. The packing 42 is spread by the rotational movement of the top cover 16 so that the abutment portion with the upper panel 19 reaches the front portion. The opening 19a of the upper panel 19 is blocked by the packing 42 when the front end of the packing 42 and the upper panel 19 come into contact with each other and the whole of the packing 42 and the cleaning tank 13 When the peripheral edge portion 13d abuts, the opening portion 13a is sealed by the packing 42. [

Since the packing 42 closes the opening 19a of the upper panel 19 and the volume of the cleaning tank 13 is reduced by the closing action of the top cover 16, It rises against the outside air. The air in the washing tub 13 is discharged to the outside through the air passage 48 to eliminate the pressure difference. The ventilation resistance of the air passage 48 is a resistance against the rotational motion of the top cover 16 even in the closing operation. However, in the closing operation, unlike the opening operation, since the self weight of the top cover 16 positively acts on the rotational motion in the closing direction, the load of the motor 92 is small as compared with the opening operation. Therefore, in the closing operation, the section from the pause position to the closing position decelerates, but the whole is driven at a high speed.

When the top cover 16 is close to the closed position, the closed position sensor 72 is turned ON to output a detection signal. When the CPU 81 receives the detection signal from the closed position sensor 72, the CPU 81 ends the deceleration and rotates the motor 92 at a constant speed. 13, the top cover 16 slightly rotates in the closing direction after the closed position sensor 72 starts to generate the detection signal. During this rotation, the closed position sensor 72 is turned ON Thereby generating the detection signal continuously. In the closed position, the abutting portions 54, 56b of the cover main body 41 come in contact with the cleaning tank 13, and rotation of the top cover 16 in the closing direction is restricted.

Even after the top cover 16 reaches the closed position, the motor 92 continues rotating to perform the excessive feed drive for a predetermined time. This surplus transport drive is for ensuring sealing between the packing 42 of the top cover 16 and the opening 13a. Since the redundant feed drive is performed after the top cover 16 reaches the closed position, the rotational movement about the rotational axis 66 of the top cover 16 is restricted.

14, the cover main body 41 of the top cover 16 is moved so as to project the center of the lower surface into the cleaning tank 13, that is, It is bent to be convex. As a result, the packing 42 and the opening 13a are surely sealed. Since the excessive torque from the motor 92 to the top cover 16 is cut off by the action of the torque limiter 93, the top cover 16 exceeds the restoration range at the same time as the excess feed mechanism, There is no case where it is destroyed or damaged.

Returning to Fig. 13, immediately after completion of the excess feed drive, the motor 92 is reversed by a predetermined amount to perform the opening preparation drive of the top cover 16. Fig. As shown in Fig. 15, the opening preparation drive is a process of eliminating the tilted state of the top cover 16 caused by the excessive feed drive. In this way, the top cover 16 is prevented from being left standing with excessive stress.

The cleaning / disinfecting apparatus 10 waits for the input of the next operation instruction in the state that the opening preparation drive is completed. When the start button of the operation unit 36 is operated to instruct the start of the cleaning / disinfecting process, the CPU 81 performs the surplus feed again to ensure the sealing of the top cover 16 before starting the cleaning / Drive. By the redundant feeding drive, the top cover 16 is in a state in which it is bent as shown in Fig. In this state, the CPU 81 actuates the lock mechanism 84 to lock the top cover 16. Further, in the processing in which the top cover 16 is opened during processing such as the sealing test to check the generation state of bubbles with the naked eye, the locking mechanism 84 is not operated.

Next, the operation of the embodiment will be described with reference to a flowchart shown in Fig. In the washing / sterilizing apparatus 10, the top cover 16 is closed to prevent dust and pathogens from entering the washing tub 13. When the foot switch 44 is operated after the power supply is turned on to start the operation, the CPU 81 determines that the operation instruction is invalid if the cleaning / disinfecting process is being executed, The opening operation is not started. The CPU 81 determines whether the top cover 16 is in the closed position or the open position according to the output of the detection signals of the closed position sensor 72 or the open position sensor 74 .

When it is determined that the top cover 16 is in the closed position, the CPU 81 controls the opening / closing mechanism 86 to start the opening operation of the top cover 16. The opening operation is performed according to the procedure shown in Fig. Since the motor 92 rotates at low speed driving at the beginning of the opening operation, the top cover 16 rotates at low speed from the closed position to the pause position. Therefore, during the period in which the opening portion 13a is closed by the packing 42 of the top cover 16, the ventilation resistance by the deodorization filter 49 is suppressed to be low so that the top cover 16 is rotated at high speed The motor 92 having a small generated torque can be used.

Since the top cover 16 is elastically supported in the opening direction by the tension spring 69, the load for rotating the top cover 16 in the opening direction is reduced. Therefore, compared with the case where the tension spring 69 is not provided, the motor 62 having a small generated torque can be used.

When the top cover 16 reaches the temporary stop position, the opening operation of the top cover 16 is temporarily stopped. And the vibration of the top cover 16, which occurs when the seal 42 is released from the seal, is converged. At the end of the pause period, the rotation of the motor 92 is resumed to the high-speed drive, and the top cover 16 rotates to the open position at high speed. Therefore, since the time required for the opening operation can be shortened, the psychological stress of the staff waiting for the top cover 16 to open is small. The setting of the endoscope 12 to the washing tub 13 and the taking out of the washing tub 13 are performed in the state that the top cover 16 is opened.

As shown in Fig. 12, in the high-speed driving, the rotation of the motor 92 is started from the initial speed which is slower than the maximum speed, and is gradually accelerated to the maximum speed. Also, even when stopping, the motor decelerates from the maximum speed to stop. Therefore, it is possible to realize a smooth movement with less shock at the time of starting and stopping the rotation of the top cover 16.

In addition, since the top cover 16 is removed from the temporary stop position, the amount of droplets scattered on the top cover 16 is small even if the top cover 16 is rotated at a high speed. In addition, since the vibration is converged and then the rotation is performed, the load required for the rotation of the top cover 16 is small as compared with the case where the vibration is not performed in the converged state.

On the other hand, when the CPU 81 determines that the top cover 16 is in the open position when the foot switch 44 is operated, the CPU 81 controls the opening / closing mechanism 86 so that the top cover 16 Thereby initiating a closing operation. In this closing operation, the rotation of the motor 92 is started at the high-speed driving, and the top cover 16 rapidly moves to the closed position. Therefore, since the time required for the closing operation can be shortened, the psychological stress of the staff is small.

As shown in Fig. 13, in the high-speed driving, the rotation of the motor 92 is started from the initial speed which is slower than the maximum speed, and is gradually accelerated to the maximum speed. Then, deceleration starts when the top cover 16 passes the temporary stop position. It is possible to prevent the finger or the hand from being caught between the top cover 16 and the apparatus main body 11 because the speed is reduced immediately before the closing position.

During this deceleration section, the packing 42 and the opening 19a of the upper panel 19 start to come into contact with each other. When the top cover 16 rotates toward the closed position, the lower surface of the packing 42 comes into pressure contact with the peripheral edge 13d of the cleaning tank 13 to complete the sealing of the opening 13a. When the closed position sensor 72 is turned on, the CPU 81 stops the deceleration of the motor 92 and continues to rotate at a constant speed. The abutting portions 54 and 56b of the top cover 16 reach the closed position where they abut the cleaning tank 13 at a position slightly rotated from the closed position.

In the closing operation, high-speed driving is also performed from the temporary stop position to the closed position. However, in the closing operation, since the weight of the top cover 16 positively acts on the rotational force in the closing direction, the rotational movement force can be smaller than that in the case where the top cover 16 is driven at high speed in the opening operation. ) Is small.

Even after the top cover 16 reaches the closed position, the motor 92 is subjected to the excessive feed drive and the rotation continues. After the completion of the excessive feed drive, the motor 92 is reversed and the open preparation drive is performed. By performing the opening preparation drive immediately before the end of the closing operation, the top cover 16 can relieve the top cover 16 from being bent by the excessive feeding drive (see Fig. 14).

The top cover 16 can wait for the start of the opening operation in a state in which the top cover 16 is released. Therefore, when the start of the opening operation is instructed by the operation of the foot switch 44, The top cover 16 can be quickly opened. According to the experimental results, the open time from the depression operation of the foot switch 44 to the top cover 16 reaching the open position requires 5.8 sec when the open preparation drive is not performed , And when the open preparation drive was performed, the time reduction effect of about 35% was recognized at 3.8 sec.

Disinfection processing start instruction is input by the operation of the start button of the operation unit 36. The CPU 81 controls the operation of the top cover 16 by the output of the closed position sensor 72 or the open position sensor 74, Is determined. If the CPU 81 determines that the top cover 16 is in the open position, it does not start the cleaning / disinfecting process and determines that the start instruction is invalid. Then, for example, a warning message is output to the display 37 to urge the hospital staff to close the top cover 16.

On the other hand, when the CPU 81 determines that the top cover 16 is in the closed position, the CPU 81 rotates the motor 92 prior to the start of the cleaning / disinfection process to perform the excessive feed drive, The sealing of the opening 13a of the cleaning tank 13 is ensured. The CPU 81 activates the lock mechanism 84 to lock the top cover 16 (ON) after the excessive feed drive. Thereafter, the cleaning / disinfecting treatment is started.

When the cleaning / processing is completed, the CPU 81 releases the lock mechanism 84 to perform the opening preparation drive. Thus, the opening time of the foot switch 44 is shortened. The above procedure is repeated until the power source of the cleaning / sterilizing apparatus 10 is turned off.

The driving sequence of the above embodiment is an example, and for example, the rotational speed or the speed ratio of each of the low-speed driving and the high-speed driving can be appropriately changed. Acceleration and deceleration are performed at the time of starting and stopping the high-speed drive. However, as in the case of the low-speed drive, the acceleration and deceleration may be performed at a constant speed from start to stop.

In the above embodiment, the point at which the speed is changed from the low-speed driving to the high-speed driving in the opening operation and the point at which the speed is changed from the high-speed driving to the low-speed driving in the closing operation are performed at the same position. The purpose of decelerating is to prevent a finger or a hand from being caught, and differs from the purpose of changing the speed in the opening operation, so that the points may be different from each other.

In the above embodiment, the packing 42 of the top cover 16 is temporarily stopped at a position away from the opening 13a and the opening 19a. However, the top cover 16 The stopping position may be any position as long as the closing of the opening 13a by the opening 13a is released so that the outside air can be introduced from the opening 13a. In other words, the packing 42 may be temporarily stopped in a state where a part of the packing 42 is in contact with the opening 13a and the opening 19a, or after the entire packing 42 has moved away from the opening 13a and the opening 19a, The cover 16 may be temporarily stopped at a position at which the predetermined amount is rotated in the opening direction.

However, the effect of temporarily stopping the reduction of the scattering amount of the droplet due to the removal of water and the reduction of the rotational motion load due to the vibration convergence is an effect expressed during the rotational motion after the pause. Therefore, it is preferable that the period until the pause is short, and the period after the pause is restarted. Specifically, it is preferable that the temporary stop position be in the first half of the rotational movement range from the position where the top cover 16 closes the opening 13a and the opening 19a to the open position. For example, if the opening angle of the top cover 16 at the position where the sealing is released is about 10, and the angle of the opening position is about 70, then the intermediate position is a position with an opening angle of about 40, The preferred range of positions is in the range of about 10 [deg.] To about 40 [deg.].

In the above-described embodiment, the example in which the temporary stop is performed once is described, but it may be temporarily stopped at a plurality of positions.

In addition, as shown in Fig. 17, when the transition from the low-speed driving to the high-speed driving is omitted, the opening time can be shortened by omitting the temporary stop. In addition, if the low-speed driving section is made substantially long, a homogeneous effect can be obtained although it is not as significant as the effect caused by the temporary stop.

Concretely, the rotation speed of the motor 92 at the time of low-speed driving is made to be slower than that in the case where the low-speed driving period is elongated or temporarily stopped as compared with the above-described embodiment. Taking a long low-speed driving period means, for example, slowing the position for switching from low-speed driving to high-speed driving to a position about 15 degrees from the position where the opening angle is about 10 degrees. If the low-speed driving period is elongated as described above, it is possible to secure the time for removing the water and the time for the vibration to converge. In addition, when the rotation speed of the motor 92 at the time of low-speed driving is made to be slower as compared with the case where the temporary stop is performed, the vibration generated at the time of the closing cancellation can be further suppressed.

It is also possible to change the rotational speed of the motor 92 from a low speed range to a high speed range while varying the speed in a plurality of steps or continuously without changing the speed range from the low speed range to the high speed range. Of course, since the low speed and the high speed are relative concepts, the rotational speed of the motor 92 may be changed within an arbitrary speed range having the lower limit value and the upper limit value without discriminating the plurality of speed ranges.

When a pulse motor is used as the motor 92, the respective drive modes may be changed during low-speed driving and high-speed driving. As described in, for example, Japanese Laid-Open Patent Publication No. 2008-160900, a pulse motor is a one-phase drive system, a two-phase drive system, a 1- There are various driving modes such as a two-phase driving method and a W1-2 phase driving method in which the phase angle of 1-2-phase driving is doubled. In the two-phase drive, the generated torque is large, the noise is large in the low-speed drive, and the 1-2-phase drive or the W1-2-phase drive has a small generated torque, but the characteristics are different depending on the drive mode. Considering such characteristics of the drive mode, for example, it is driven by the 1-2 phase drive system or the W1-2 phase drive system at the time of low speed drive to suppress the noise, and the high speed drive is driven by the two- The drive mode may be changed such that the torque is increased.

Although the pulse motor is used as the electric actuator serving as the driving source for opening / closing the top cover, it may be a motor other than a pulse motor such as a DC motor. In addition, it may be a solenoid as well as a motor.

In addition, the disposing position of the deodorizing filter may be provided not on the top cover but on the inner surface of the cleaning tank, for example. The deodorization filter is formed above the highest position of the liquid level so as not to sink below the liquid level of the liquid stored in the cleaning tank. However, since water is scattered in the washing tank, it is preferable that the deodorizing filter is arranged on the top cover rather than the inner surface of the washing tub from the viewpoint of waterproofing of the deodorizing filter.

In addition, although the pedal-type foot switch has been described as an example of operation input means for opening and closing the top cover, it is also possible to provide a press pad, a touch sensor, or the like, .

The present invention can be applied not only to the cleaning / disinfecting device for an endoscope, but also to a cleaning / disinfecting device for cleaning / sterilizing a medical instrument. As a medical instrument other than the endoscope, for example, a treatment instrument that is used by inserting a forceps channel of an endoscope such as a forceps, an ultrasonic probe, a clip treatment instrument, or a snare can be considered. Of course, other than a treatment instrument used with an endoscope It may be a medical device.

The present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the gist of the invention.

Claims

A cleaning and disinfecting device for cleaning and disinfecting a medical instrument,
A cleaning tank for storing the medical instrument, wherein the medical instrument is installed from an upper opening;
An air passage for flowing gas between the inside and the outside of the cleaning tank;
A deodorizing filter for removing odor from the gas flowing through the ventilation passage;
A cover movable between an open position and a closed position for exposing the opening at the open position and sealing the opening at the closed position;
An electric actuator for moving the lid between the closed position and the open position; And
Wherein the controller controls driving of the electric actuator such that the electric actuator is driven at a low speed so as to slow the opening speed of the lid from the closed position to the position where the lid is closed, The operation of the electric actuator is stopped so that the opening operation of the lid is stopped at the position, and the electric actuator is driven in the high speed region such that the opening speed of the lid is increased after the pause,
Wherein the closing operation of the lid drives the electric actuator at a high speed without temporarily stopping from the open position to the closing position.

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The cleaning and disinfecting apparatus according to claim 1, wherein the controller drives the electric actuator at a constant speed in driving at the low speed region.

The cleaning and disinfecting apparatus according to claim 4, wherein the controller includes an acceleration section for accelerating to a predetermined speed, and a deceleration section for decelerating and stopping at the predetermined speed.

The cleaning and disinfecting device according to claim 1, wherein the controller further changes the closing speed of the lid during closing operation of the lid.

The cleaning and disinfecting apparatus according to claim 6, wherein the controller decelerates the closing speed of the lid just before the lid reaches the closing position.

The cleaning and disinfecting apparatus according to claim 1, wherein the controller performs surplus transport driving in which driving of the electric actuator is continued for a predetermined time after the lid reaches the closed position.

The cleaning and disinfecting apparatus according to claim 1, wherein the controller performs an opening preparation drive for driving the electric actuator in a reverse direction for a predetermined time when the closing operation of the lid is completed.

The cleaning and disinfecting device according to claim 1, wherein the deodorizing filter is formed on the lid.

The cleaning and disinfecting apparatus according to claim 1, further comprising a foot switch for inputting an opening / closing instruction of the cover to the controller.

The cleaning and disinfecting apparatus according to claim 1, wherein the lid rotates around a rear end as a fulcrum.

The cleaning and disinfecting device according to claim 12, wherein the lid has a flat plate shape, and a reinforcing rib is formed on a surface facing the cleaning tank.

14. The cleaning and disinfecting apparatus according to claim 13, wherein the ribs are formed more rearward than the front of the lid.