JPS58180129A - Cleaning apparatus of endoscope - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an endoscope cleaning @ arrangement that allows easy cleaning (or Ml) of various conduits provided in an endoscope and a mouthpiece connected to the conduits. It is something.

In recent years, an elongated insertion tube has been inserted into a body cavity, and the inside of the body cavity III can be optically observed or diagnosed using an observation and illumination optical system installed at the distal end of the insertion tube. Medical equipment that allows you to examine the affected area within a living body by inserting forceps to collect a sample of the affected tissue, suctioning liquid through a suction tube, and examining the collected sample, liquid, etc. ? j! Mirrors are now widely used. Also, in the industrial field, the insertion part is inserted into the pipes of boilers, plants, etc. to optically observe the inner surface of the pipes, and samples of the inner surface of the pipes are collected for maintenance purposes. There is an endoscope for use.

Of the above, 111M, especially medical endoscopes, effectively perform functions such as inserting into a body cavity for optical observation, inserting forceps to collect a sample, or aspirating fluid to collect it for examination. For this purpose, a number of conduits are provided, such as an air conduit, a water conduit, a suction conduit, and a forceps insertion channel.

The air supply conduit and water supply (liquid supply) conduit may be damaged if the lIwI window (glass) at the front end of the observation optical system becomes cloudy or if liquid such as gastric juice or fluid adheres to the IIwI window (glass). If it is difficult to detect, remove it by blowing air from the hand side, or if it cannot be removed by simply blowing air, use water to wash it, then blow air again to dry it, etc. so that it can always be clearly observed. It is provided as a means of In some cases, the target area can be easily observed by supplying air through an air supply conduit.

On the other hand, the suction pipe is used, for example, to diagnose the state of the stomach by aspirating and collecting gastric juice and examining it, or to suction and remove liquids and fluids that may be an obstacle during observation. It will be done.

Many of these conduits are cleaned and disinfected after using the endoscope, but the suction conduit and the mouthpiece at the proximal end of the suction conduit are particularly contaminated with gastric juices, other liquids, and solid substances. Since these liquids and solids adhere to the pipe wall and the mouthpiece after use because they are sucked by an external suction device connected to the mouthpiece, they must be thoroughly cleaned or disinfected.

Conventionally, when cleaning or disinfecting the above-mentioned various main routes and their mouthpieces, one end of a tube or hose was connected to the mouthpiece, and cleaning water (liquid) or disinfectant solution was fed (liquid) from the other end. However, it was not possible to sufficiently clean or disinfect the outer periphery of the mouthpiece to which tubes, etc. are connected.

Therefore, after cleaning the conduit, the mouthpiece has been cleaned separately, but this is time-consuming, and when cleaning the mouthpiece, the body of the endoscope may be touched and the inside of the endoscope may be damaged. J! There was a problem with the mirror being contaminated.

The present invention has been made in view of the above-mentioned points, and can be cleaned or disinfected by attaching it to a mouthpiece formed at the end of a conduit provided in an endoscope and sending a cleaning liquid or disinfectant from the rear. In an endoscope cleaning device, a movable member that is always urged toward the mouthpiece by magnetic force or elastic force is disposed between a cleaning mouthpiece mounted opposite to a mouthpiece of a conduit, and the movable member By making it possible to move to the mouthpiece side by the liquid feeding pressure, and by configuring it so that the path that flows sideways to the outer periphery of the mouthpiece can be opened and closed, the pipe line and the mouthpiece can be moved by simply changing the liquid feeding pressure or the liquid feeding flow rate. An object of the present invention is to provide an endoscope cleaning device that can be cleaned or disinfected.

Hereinafter, the present invention will be specifically explained with reference to the drawings.

FIG. 1 and FIG. 2 are related to the first embodiment of the present invention,
FIG. 1 shows an inner W4m and a water tank provided with various pipe lines to which the first embodiment of the present invention is applied, and FIG. 2 shows the first embodiment of the present invention.

In FIG. 1, a flexible endoscope 11 includes a flexible and elongated insertion section 2 inserted into a body cavity, an operating section 3 formed at the rear end of the insertion section 2, and a light source device (not shown) connected to the insertion section 2. It is formed from a light guide cable 4 that emits illumination light from the tip of the insertion section 2.

A connector 5 connected to a light source device is provided at the tip of the light guide cable 4 extending from the operation section 3.

A light guide fiber is inserted into the light guide cable 4 and the insertion section 2, and the illumination light transmitted from the light source device is emitted from the illumination window at the tip of the insertion section 2 to illuminate the inside of the body cavity. There is.

On the other hand, an image guide 7 as an image transmitting means is inserted into the insertion section 2, and the illuminated intra-body cavity tissues, etc. are observed by the observation optical system 6 disposed at the tip of the insertion section 2. This optical image is transmitted to the rear end of the operating section 3 by the image guide 7 inserted into the insertion section 2, and can be observed from the eyepiece lens 811.

When inspecting the inner wall of an organ in a body cavity using the I observation optical system, blow air into the observation window 6A at the distal end of the insertion section 2 to remove fogging or deposits on the observation window (glass) 6A in the observation optical system. The attached nozzle 9 (8 [1) is the observation window 6
A, this nozzle 9 is branched near the tip of the insertion portion 2 and connected to an air supply pipe line 10 and a water supply pipe line 11. These air supply pipe line 10 and water supply pipe line 1
1 is inserted into the light guide cable 4 via an air/water supply (opening/closing) control valve 12 which is provided in the operation section 3 and can be used by switching between air supply and water supply. The air supply conduit 10 inserted through the light guide cable 4 can be connected to an air supply pump in the optical system 1aiii by means of an air supply spout 13 formed on the connector 5 at the tip of the light guide cable 4. At the same time, it is communicated with an air supply port 14B adjacent to the water supply port 14A in the water supply tank connection mouthpiece 14 formed on the side of the connector 5, which is branched in the middle, and connects the water supply tank 16 to the water supply tank 16. It is configured such that the section 17 can be attached.

When the water supply tank 16 is installed, the water supply port 14A
is connected to the water in the tank via the water supply tube 18 of the water supply tank 16, while the supply line 14B is connected to the water supply tube 19 through the water supply tube 18 of the water supply tank 16.
By sending gas (air) into the tank by the air pump in the light source device, the air pressure in the tank is increased and the water in the tank is transferred to the water feeding tube 18 side. It is constructed so that water can be delivered by discharging water from the tank.

The air/water supply control valve 12 provided in the operating section 3 is formed with an outlet (not shown) that branches and communicates with the air supply conduit 10 on the insertion section 2 side. The gas supplied through the air supply conduit 10 inside is discharged to the outside through a discharge port (not shown) of the air/water supply 11J III valve 12, and when the discharge port is blocked with a finger or the like, the gas is discharged. The gas is configured to pass through the air supply conduit 10 on the side of the insertion section 2 and be released from the nozzle 9.

On the other hand, when the air/water supply control valve 12 is pressed and the hollow cylindrical member is pushed in against a coil spring (not shown), the hole communicating with the air supply conduit 10 on the insertion section 2 side is blocked. At the same time, the light guide cable 4 side and the water supply pipe 11 on the insertion part 2 side are communicated, and the gas supplied from the air supply pump is transferred to (the gas part of) the water supply tank 16.
By increasing the air pressure in the tank, the water in the water tank 16 is discharged from the water tube 1811M, and the water pipe 11 can be easily discharged from the nozzle 9.

Inside Zarani? The N11+ is equipped with forceps that are inserted into the insertion section 2 from a part of the forceps plug 21 of the operation section 3 and protruded from the distal end side so that samples such as biological tissue can be collected using forceps or the like. An insertion conduit (forceps channel) 22 is formed.

The forceps plug 21 always closes the insertion opening of the forceps channel 22 in the portion to which the forceps plug 21 is attached, but when the forceps are inserted, the valve opens and the forceps can be inserted. This forceps channel 22 is connected to a suction (
The proximal end of the suction conduit 23, which is connected in a normally closed state to the suction conduit 23 in the control valve 23 and inserted through the light guide cable 4, is located near the side of the connector 5. The suction mouthpiece 24 formed to protrude is configured to be connectable to a suction device (not shown).

When the suction control valve 23 is not pressed, it sucks air from an air intake port (not shown) formed in a hollow cylinder-like member, whereas when it is pressed against the biasing force of a coil spring (not shown), the air intake port is closed, and the cylindrical portion 0I! The hole formed in the forceps channel 22 moves and the forceps channel 22 passes through the suction conduit 23 on the light guide cable 4 side, and the gastric fluid, etc. facing the opening at the tip of the forceps channel 22 is suctioned, and the forceps channel 22. It is configured to be sucked into the suction device side from the suction mouthpiece 24 via the suction conduit 23.

When the suction mouthpiece 24 is connected to a suction device via a hose (not shown) or the like, a saw-shaped protrusion is formed on the outer periphery of the suction mouthpiece 24 to prevent the hose from coming off during use. has been done.

Suction mouthpiece 24 in endoscope 1 configured in this way
In addition, the first embodiment of the endoscope cleaning device of the present invention as shown in FIG. 2 is constructed so that it can be detachably attached.

In the first embodiment, a cover member 33 covers the brim-shaped end 32 of a mouthpiece 31 of a cleaning machine (not shown) that sends a cleaning solution or a disinfectant solution (water supply), and the front end of the cover member 33 is used for suction. When attached to the mouthpiece 24, a gap is formed between the outer periphery of the suction mouthpiece 24 and the inner periphery of the cover member 33. Said flange-shaped end 32 (in the case of an integral piece, the cap 3
1 part) is formed of a (ferro)magnetic material that is attracted by magnetic force, and a substantially ring-shaped movable piece 34 formed of a magnet is attached to the front surface of this collar-shaped end 32, which is attracted by the magnetic force. ing.

The hollow inner circumferential surface of the ring-shaped movable piece 34 has a tapered shape whose diameter is expanded forward, and is shaped to fit into the serrated surface formed on the outer circumference of the suction mouthpiece 24, and the inner circumference The rear end of the surface is formed with a protrusion that protrudes inward from the inner diameter of the mouthpiece 31, and as shown by arrow A from the rear (not shown), when cleaning water with a large flow rate or high water pressure is fed (water feeding). The movable piece 34, which is magnetically attracted to the flange-like end 32 by the pressing force, is configured to move to the front suction mouthpiece 24m.

Therefore, the outer diameter of the movable piece 34 is made substantially equal to the inner diameter of the cover member 33, and the movable piece 34 is shaped to fit into the cover member 33. When fitted, the passage through which the supplied cleaning water and the like flows sideways around the outer periphery of the suction mouthpiece portion 24 is closed.

On the other hand, when the water supply pressure is low and the movable piece 34 is attracted to the flange-like end 32, the supplied cleaning water travels straight through the suction pipe 23 inside the suction mouthpiece 24, and at the same time The part includes the outer surface of the suction cap part 24 and the cover 811 material 33.
It is configured to flow sideways between the two as shown by arrow B.

In the first embodiment, the suction mouthpiece 24 is made of a non-magnetic material that is not attracted by magnetic force at all, or a magnetic material whose magnetic force is weaker than that of the flange-like end 32.

In addition, the cover member 33 has a stepped shape on the front end side, and is configured IN so that it can be pushed open when inserted. Of course, the front end side portion can be constructed from a separate rubber-like member.

The operation of the first embodiment of the present invention configured in this manner will be described below.

First, the suction mouthpiece 24 is inserted into the opening at the end of the cover member 33ffi in the first embodiment, and
142 as shown in Figure 142. Next, when the water pressure is lowered from the washer side (not shown) and the cleaning water is fed as shown by arrow A, the cleaning water flows straight inside the suction mouth part 24 and flows through the suction mouth as shown by arrow B. The outer periphery of the suction mouthpiece 24 can be flushed to the side to remove deposits on the outer periphery of the suction nozzle 24 or to disinfect the outer periphery of the suction nozzle 24.

On the other hand, when the water pressure is increased and water is fed, the cleaning water presses the protrusion with the water feeding pressure, moves the movable piece 34 in the direction of arrow A (forward), and the movable piece 34 flows to the side of the outer periphery of the suction mouthpiece 24. In this case, the cleaning water will go straight to the suction pipe 2.
3 and forceps channel 22 and is released from its distal opening to clean or disinfect these ducts.

FIG. 3 shows the main part of the second embodiment.

As shown in the figure, the movable piece 3 in the first embodiment described above
4 is made of a magnet and is always attracted to the flange-shaped end 32. Instead, the cylindrical flange 3 is made thicker on the front end side of the base 31.
One or more (two in the figure) tension springs 41° 41 disposed in the gap between the outer periphery of the cover 2' and the inner surface of the cover member 33 that covers the outer periphery keep the movable piece 34' in place at the rear of the base at all times. This movable piece 34' is configured to be moved forward by pulling the movable piece 34' toward the side of the movable piece 31 and sending water by increasing the water pressure. The other parts are configured similarly to the first embodiment, and the movable piece 34' is in a state in which it does not move and opens the side flow path depending on the magnitude of the water supply pressure, and in a state in which it moves and closes the side flow path. The operation of easily controlling and cleaning and disinfecting not only the suction conduit 23 but also the outer periphery of the suction mouthpiece 24 is substantially the same as in the first embodiment □.

This embodiment is characterized in that the movable piece 34' can be made of a non-magnetic material, and the collar portion 32' is not limited to a magnetic material.

In the first embodiment described above, the movable piece 34 is a magnet,
Although the flange-like end portion 32 is made of a magnetic material, it is also possible to replace the movable piece 34 with a magnetic material and the flange-like end portion 32 with a magnet.

Furthermore, the movable piece 34 and the flange-like end 32 may be formed of magnets arranged so that their opposing surfaces have different polarities that attract each other. In this case, the suction cap portion 24 can be formed of either a magnetic material or a non-magnetic material.

Although the suction pipe 23 and the suction mouthpiece 24 are shown as the pipe line and its mouthpiece to be cleaned in the above-mentioned embodiments, the present invention provides a movable piece 34.3 according to the outer shape of the mouthpiece.
4', etc., as shown in Figure 1? 111 can of course be applied to other mouthpieces and conduits in other endoscopes.

Further, in each of the above embodiments, the rear end side of the inner circumferential surface of the movable piece 34, 34' is made to protrude inward from the inner circumferential surface of the base 31, but this is not limited to this example. A protrusion that protrudes inward may be provided at a location.

As described above, according to the present invention, the inner ? J! At the front end of the mouthpiece of the cleaning device attached to the mouthpiece at the end of the conduit of the mirror, there is a movable member that can open and close the side channel on the outer periphery of the mouthpiece depending on the liquid pressure when sending liquid. This arrangement has the advantage that the conduit of the endoscope and its mouthpiece can be easily cleaned or disinfected by simply adjusting the pressure of the cleaning liquid or disinfectant.

[Brief explanation of drawings]

Figure 1 shows one example of lateral movement of an endoscope to which an embodiment of the present invention is applied.
Explanatory drawings showing examples, FIGS. 2 and 3 show embodiments of the present invention, FIG. 2 is a sectional view of the main part of the first embodiment, and FIG. 3 is a sectional view of the main part of the second embodiment. It is a diagram. - 1...within? ll#lI, 2...insertion part, 3...
・Operation unit, 4... Lie 1-guide cable, 10.
...Air supply pipe line, 11...Water supply pipe line, 12...
Air supply/water supply control valve, 13...Air supply mouthpiece, 16...
Water supply tank, 21... Forceps plug, 22... Forceps channel, 23... Suction pipe, 24... Suction cap part, 31... Cap, 32.32'... Brim (shape) ) end) part, 33...h bar member, 34.3
4'...Movable piece, 41...Spring. Figure 1 2.3 Clothes 4 Figure 2 3 Figure 3 1

Claims (1)

[Claims] Inside? In an endoscope cleaning device that is attached to a mouthpiece formed at the end of a conduit provided in a JI trowel and sends a cleaning liquid or disinfectant for cleaning or disinfection, it is attached to cover the mouthpiece. a cap disposed within a cover member to face the cap; and a ring-shaped member movable between the cap and the cap and constantly biased toward the cap by magnetic force or elastic force. At the same time, a protrusion is formed on the inner circumferential surface of the ring-shaped member, and when the ring-shaped member is moved toward the cap side by pressing the protrusion with liquid feeding pressure from the cap side, the cap The inside is characterized by being configured so that the side flow path along the outer periphery of the part can be obstructed. J! Scissor cleaning device.