JPS60156433A - Washing apparatus for 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 [Technical Field of the Invention] The present invention relates to an endoscope cleaning device for cleaning the duct of an endoscope.

[Background technology of the invention and its problems]

In general, after using the endoscope, the outer surface of the insertion tube can be cleaned and disinfected by soaking it in a disinfectant solution or wiping it with disinfectant cotton even if it is still connected to the light source, but the tubes inside the endoscope, especially the air supply tubes, can be cleaned and disinfected. Due to its structure, it was not possible to clean and disinfect the inside of the forceps channel.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to be able to clean and disinfect each conduit of an endoscope with a simple operation while the endoscope remains connected to the light source device. An object of the present invention is to provide an endoscope cleaning device.

[Summary of the invention]

The present invention provides a light source device with a liquid supply tank connected to an air supply pump, and between the liquid supply tank and an air passage formed across an endoscope and a universal cord connected to the operation section, By this switching operation, a first switching mechanism is provided that sends the liquid in the liquid sending tank to the air feeding path, and the air feeding path can be cleaned and disinfected with the liquid in the liquid feeding tank while connected to the connector all light source device. Moreover, it is possible to perform all liquid feeding to the air passage with a relatively simple structure. Furthermore, a forceps mouth cleaning tube connected to a suction pump via a passage switching valve is provided so that the vicinity of the forceps mouth can also be cleaned.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 in FIG. 1 is an endoscope consisting of an operating section 2 and an insertion section 3. As shown in FIG. A universal cord 4 is connected to the operating portion 2, and a connector 6 is provided at the extending end of the universal cord 4 to be connected to the light source device 5 via a connector socket 47, which will be described later.

As shown in FIGS. 3 and 4, the endoscope 1 and the universal cord 4 are provided with an air supply path 7 over their entire length.
and a liquid feeding path 8 are provided. A midway portion between the air supply path 7 and the liquid supply path 8 is connected to an air/water supply switching valve 9 in the operating section 2 . As shown in FIG. 4, the air/water supply switching valve 9 includes a cylinder 10, a piston 1 slidably inserted into the cylinder 10, and a spring that urges the piston 11 in a direction to protrude from the cylinder 10. It consists of 12. The cylinder 10 is connected to the upstream side 7a and the downstream side 7b of the air supply passage 7 at the lower end of its peripheral wall, and the upstream side 7a and downstream side 7b of the liquid supply passage 8 are connected to the upper end of the connection end of the air supply passage 7. 8a and downstream side 8b are connected.

Further, the piston 1 is provided with a leak hole 13 that penetrates in its axial direction, and a circumferential groove 14 is formed on the outer periphery.
is engraved. When the piston 11 is biased in the direction of protruding from the cylinder 10 by the spring 12 as shown in FIG. is in series and fed by the piston 11, and the upstream side 8a and downstream side 8b of the liquid path 8 are cut off. Further, when the piston 11 is pushed in against the urging force of the spring 12, the upstream side 7a and the downstream side 7b of the air supply path 7 are cut off by the piston 1,
The upstream side 8a and downstream side 8b of the liquid feeding path 8 communicate with each other via a circumferential groove 14 of the piston 1.

Note that the piston 11 was kept airtight with the cylinder 10. MenoQ IJ song 5 is provided.

The ends of the downstream sides 7b and 8b of the air supply path 7 and the liquid supply path 8 located on the distal end side of the insertion section 3 merge to communicate with a nozzle 16 provided on the distal end surface of the insertion section 3. . Also, the upstream side 7 which is the other end of the air supply path 7 guided to the connector 6
a communicates with a connection cap 17 protruding from the end surface 6a of the connector 6. The other end of the liquid feeding path 8 led to the connector 6, ie, the upstream side 8a, opens into a connecting portion 18 formed on the side surface of the connector 6. Further, a pressurizing path 19 branched from the upstream side 7a of the air supply path 7 opens in this connecting portion 18. Further, in the connection part 18, a double motherboard 21 having a connection cap 20 at one end is connected to the connection cap 20.
Hermetically connected via 0. The above double pipe 21
consists of an inner tube 22 and an outer tube 23, with the inner tube 22 communicating with a central hole 24 formed in the connection base 20, and the outer tube 23 communicating with a peripheral hole 25. When the connection cap 20f is connected to the connecting portion 18, the inner tube 22 communicates with the liquid feeding path 8 through the center hole 24, and the outer tube 23 communicates with the pressurizing path 19 through the peripheral hole 25. It has become. Further, the other end of the double pipe 21 is connected to a first liquid sending tank 2 containing liquid Ll.
6 through a casso 27, its outer pipe 23 opens into the upper space inside the liquid supply tank 26, and the inner pipe 22
is put into the liquid Ll.

On the other hand, the light source device 5 to which the connector 6 is connected is constructed as shown in FIG. That is, the device main body 28
A light source 29 is provided inside, and the light from this light source 29 is focused by a lens 30 to a light guide fiber 32 in a light guy P base 31 protruding from the end face of the connector 6.
It is designed to be incident on . In addition, an air pump 7'' 33 of the liquid feeding device section is disposed within the device main body 28, and the discharge side of this air pump 33 is connected to the liquid L through the pressurizing tube 34.
It communicates with the upper space in the second liquid feeding tank 35 in which the liquid feeding tank 2 is housed. Furthermore, a receiving member 36 into which the connection cap 17 protruding from the end surface 6a of the connector 6 fits is provided in the device main body 28, and the receiving member 36 has an air supply path 7 opened to the connection cap 17. A communication path 37 is formed to communicate with the upstream side 7a.

A switching valve 38 serving as a switching mechanism is provided between this communication path 37 and the second liquid feeding tank 35. That is, the switching operation valve 38 is slidably inserted into the cylinder 39 and has one end connected to the device main body 2.
8, the piston 40 protruding outward, and this piston 40f.
A circumferential groove 42 is formed on the outer peripheral surface of the piston 40. Further, the piston 40 is provided with a QIJ song 3 that maintains airtightness between the piston 40 and the cylinder 39. The peripheral wall of the cylinder 39 is connected to the other end of a first air supply tube f44 whose one end communicates with the upper space in the second liquid supply tank 35 near the bottom thereof, and whose other end communicates with the upper space in the second liquid supply tank 35. A second air supply tube 4 communicating with the passage 37
The other end of 5 is connected. Further, on the peripheral wall of the cylinder 390, a water pumping tube 46 is provided near the opening end of the air supply tubes 44 and 45, and the other ends of the water pumping tubes 46 are connected to the second liquid supply tank. 35 in an airtight manner, and is thrown into the liquid Lz.

When the switching valve 38 is in the state shown in FIG. 2 and the piston 40 is urged by the spring 41 and protrudes, the first air supply tube f
44 and the second air supply tube 45 communicate with each other, and the piston 4
The water pumping tube 46 and the second air supply tube 45 communicate with each other via the circumferential groove 42 of the piston 4o, which is pushed into the piston 4o.

On the other hand, a connector socket 47 for connecting and fixing the connector 6 is provided on the side wall of the main body 28 of the light source device 5.
is provided.

On the other hand, the operation section 2 of the endoscope 1 is provided with a suction switching valve 5o in parallel with the air/water supply switching valve 9. As will be described later, this suction switching valve 5o is connected to a suction tube 6 which serves as a suction path inserted from the operating section 2 of the endoscope 1 to the universal cord 4, and is inserted into the operating section 2 of the endoscope 1. Part 3
The forceps channel 68 that is interpolated across the center and the middle of the forceps channel 68 are connected and interrupted.

That is, as shown in FIGS. 5 and 6, the suction switching valve 5o in the endoscope 1 is constructed by fitting the cylindrical piston 54 into the cylinder 53 so that the entire cylindrical piston 54 can slide freely.
An open end 55 leading to the forceps channel communication tube 5 formed in the side wall of the piston 54 and an opening 56 formed in the side wall of the piston 54
Further, the suction tube 51 is connected to the bottom of the cylinder 53. And when on standby, the fifth
As shown in the figure, the biasing spring 57 and the piston 54 are raised so that the open end 55 and the aperture 56 are shifted, and during suction, the piston 54 can be pushed into the opening with a finger as shown in Figure 6. The end 55 and the opening 56 are aligned to open the suction passage. Note that the piston 54 is formed with a leak hole 58 for sucking in outside air during standby. During suction, the piston 54 is fully pushed in while closing the leak hole 58 with a finger as shown in FIG.

Further, the cylinder 53 and the piston 54 are provided with a rotation stopper 59 and a rotation stop pin 60f that engages with the shaft, so that the piston 540 is stopped from rotating.

Furthermore, one end of a suction tube 61 that forms the entire suction path is connected to the bottom of the cylinder 53, and this suction team pro 1
The other end reaches the connector 6 through the universal cord 4, and is connected to a connection port 62 provided on the connector 6. As shown in FIG. 1, one end of the connection vibro 3 is detachably connected to this connection port 62. The other end of the connecting pipe 63 is connected to one end of a passage switching valve 64, which will be described later. The passage switching valve 64 is a three-way valve, and is provided at or near a part of the light source device 5. Further, the other end of the passage switching valve 64 is connected to the suction pump 6 via a tube 65, and the forceps opening cleaning tube 67 is connected to the remaining other end. Then, the passage switching valve 64 connects the tube 65, that is, the suction bong f66 side to the pizoro 3
It is connected to the forceps mouth cleaning tube 67. The other end of the forceps port cleaning blower is detachably connected to the forceps port 69 of the forceps channel 68 in the endoscope @1. The forceps channel 68 is formed across the operating section 2 and the insertion section 3.

Note that a suction section 7o is inserted in the middle of the tube 65 to store sucked liquid and the like.

Next, the operation of the liquid feeding device will be explained.

First, the endoscope 1 is connected to the connector socket 42 of the light source device 5.
Connect the connector 6 of the Therefore, when using the endoscope 1 for normal observation, etc., the first. The air pump 33 is operated without any operation of the second air/water switching valve 9 and the switching operation valve 38 as shown in FIGS. 4 and 2.

Then, the air from this air pump 33 is transferred to the pressurizing pipe 3.
Air is supplied from 4 through the upper space of the second liquid supply tank 35 through the first air supply tube 44, the space inside the cylinder 39 of the switching operation valve 38, the second air supply tube 45, and the communication path 37. It flows to the upstream side 7a of the passage 7. Usually, this air passage 7
The air flowing to the upstream side 7a is released into the atmosphere through the leak hole 13 of the piston 1 of the air/water switching valve 9. Therefore, if the leak hole 13 is closed with a finger, air passes through the downstream side 7b of the air passage 7 and is ejected from the nozzle 16. If you still want to send liquid to the liquid sending path 8, press the piston 1 of the air/water switching valve 9.
1 to block the upstream side 7a and downstream side 2b of the air supply path 7, and to communicate the upstream side 8a and downstream side 8b of the liquid supply path 8. By blocking the air supply path 7, this air supply path 7
The air flowing into the upstream side 7a of
? The liquid flows through the outer pipe 23 of the tube 21 and flows into the first liquid feeding tank 26, and the fluid Llk inside this tank is pressurized. Therefore,
The liquid flows through the inner pipe 22 of the double i9 pipe 21 to the upstream side 8a of the liquid feeding path 8, and from there flows to the downstream side 8b via the circumferential groove 14 of the piston 1 of the air/water switching valve 9. The liquid will flow and exit from the nozzle 16.

On the other hand, when the endoscope 1 has been used, the piston 40 of the switching operation valve 38 is pushed in with the air supply pump 33 activated, and the first air supply tube 44 and the second air supply tube 4 are
5 is cut off, and the second air supply tube 45 and the water pumping tube 46 are made to communicate with each other. Then, the liquid L2 is pressurized by the air sent into the second liquid feeding tank 35 from the air pump 7'' 33, and this liquid L2 flows through the water pumping tube 46, the second air feeding tube 45, and the communication path 37. Flows to the upstream side 7a of the air supply path 7 via the air supply passage 7. Therefore, if the leak hole 13 of the piston 11 of the air/water supply switching valve 9 is closed,
The liquid L2 passes through the downstream side 7b of the air supply path 7 and enters the nozzle 1.
6, the entire length of the air supply path 7 is cleaned by the flow of this liquid L2. Moreover, if the liquid L2 is a chemical liquid, the air supply path 7 will be disinfected.

After cleaning the air supply path 7 in this way, the air supply path 7
By sending air as described above, the liquid Lz'f remaining in the air supply path 7 can be removed.

In addition, when cleaning the liquid feeding path 8, the first liquid feeding tank 2
If the inside of the endoscope 6 is used as cleaning water, by continuing to push only the piston 11 of the air/water switching valve 9 of the endoscope 1, the liquid feeding state can be maintained and the liquid feeding path 8 can be cleaned. If you want to clean even more safely, use the first liquid supply tank 2.
6 is empty, the piston 4 of the switching operation valve 38
If 0 is also pressed and the liquid in the second liquid feeding tank 35 is sent out, this liquid enters the first liquid feeding tank 26, and cleaning can be continued with this liquid.

On the other hand, when cleaning the inside of the forceps channel 68, as shown in FIG.
After connecting the endoscope 1 to the endoscope 1, the insertion section 3 of the endoscope 1 is immersed in the cleaning liquid.

When the suction bong f66f is operated, first, when the passage switching valve 64 is switched to the connection side, the cleaning fluid is passed through the forceps channel 68, the suction switching valve 50, and the suction tube 61'ft. is inhaled and taken into the suction reservoir 70. This allows the entire inside of the forceps channel 68 to be cleaned.
Since the cleaning liquid does not flow into the side parts, the cleaning of these parts is insufficient. Therefore, this time, the passage switching valve 64 is switched to the forceps mouth cleaning tube 67 side. The cleaning liquid then flows over the entire length of the forceps channel 68 and passes through the forceps port 69.
The forceps opening cleaning tube and blower are passed through the section and taken into the suction reservoir 70. Therefore, the vicinity of the forceps opening 69 can also be sufficiently cleaned by this flow.

Note that such a cleaning operation for the forceps channel 68 is preferably performed at the same time as cleaning the above-mentioned air supply path 7 and liquid supply path 8. Furthermore, if the tip of the insertion section 3 is covered with a collar 7"c so that the tips of the nozzle 16 and the forceps channel 68 are communicated with each other, it is not necessary to swell the insertion section 3 into the cleaning liquid. The P-build 34 and the pumping tube 46 may be connected through a connecting pipe 80 shown by the dotted line in FIG.
The pressurizing pipe f34 and the pumping tube 46 may be combined into one and connected to the liquid feeding tank 35.

〔Effect of the invention〕

As explained above, the light source device of the present invention is provided with a liquid supply tank connected to an air supply pump, and the liquid supply tank is connected to an air passage formed across an endoscope and a universal cord connected to this operation section. During this period, the switching operation causes Ig to send the liquid in the liquid supply tank to the air supply path.
By providing a switching mechanism of 1, the air supply path can be cleaned and cleaned with the liquid in the liquid supply tank while the endoscope is connected to the light source device.

Furthermore, the present invention can reliably clean and disinfect not only the air passage and the liquid passage but also the entire length of the forceps channel while connected to the endoscope's full light source device.

Furthermore, the above-mentioned cleaning and disinfecting operation can be easily performed by touching the device with a wet cloth.

Further, according to the present invention, each of the above-mentioned conduits can be easily cleaned without adding any additional cost to the existing endoscope.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a schematic diagram of the overall configuration, FIG. 2 is a diagram of the configuration of the light source device section,
Fig. 3 is a side sectional view of the connector part of the endoscope, Fig. 4 is a side sectional view of the air/water supply switching valve of the endoscope, and Fig. 5 is a side sectional view of the suction switching valve of the endoscope. FIG. 6 is a side sectional view of the suction switching valve. 1... Endoscope, 2... Operation section, 3... Insertion section, 4
...Universal code, 5...Light source equipment N, 6...
·connector,? ...Air supply route, 8...Liquid supply route, 9...
・Air/water supply switching valve, 35...Second liquid supply tank, 38
...Switching operation valve, 47...Connector receiving part, 5o...
- Suction switching valve, 5... Suction tube, 64... Passage switching valve, 66... Suction pump, 67... Forceps mouth cleaning cheese, 68... Forceps channel. Applicant's representative Patent attorney Jun Tsuboi Figure 5 Figure 6 Procedural amendment 1932 6.1-chome Commissioner of the Patent Office Kazuo Wakasugi 1, Indication of case Patent application No. 12606/1982 2, Invention Name Endoscope Cleaning Device 3, Relation to the Nagisa Incident to be amended Patent amount - Human creation ゛j, (o:37) Olympus Optical 21 - Certain Corporation 4, Agent 5 Voluntary amendment 6, Subject of amendment , -1 "Above suction tube 5" is corrected to "suction/suction tube 61". (2) In the 6th line from the bottom of page 15, change ``the forceps channel 68'' to ``by pressing the suction switching valve 50, the forceps channel 68 and the forceps channel communication tube 51'' can be accessed from the tip of the insertion section 3.'' Correct to. (31, page 16, line 1, “pumping tube 46” is replaced with “
Water supply tube 44". (4) “Suction tube” on page 18, line 4 from the bottom
Correct it to "forceps channel communication tube". (5) Add ", 61...suction tube" next to "forceps channel" in the second row from the bottom of the 18th member. (6) Correct the three beams in the drawing as shown in the attached sheet. (?) u pier tanba number ptg'mushi-ri' mida t 3t tea is fine, and the r length of +ray 4℃・-k(),, way''z
uL(>su((bruise U)・

Claims (1)

[Claims] An endoscope having an operating section, a unilateral cord connected to the operating section of the endoscope, a connector provided at the end of the universal cord, and forceps provided on the endoscope. a channel, an air supply path, a liquid supply path, and a suction path provided across the endoscope and the universal cord; a light source device having a connector socket to which all the connectors are connected; and an air supply provided in the light source device. A liquid supply tank connected to a pump and a switching operation between the liquid supply tank and the control unit of the endoscope supply air to the air passage, and the air from the air supply pump pressurizes the liquid in the liquid supply tank and supplies the liquid. An air/water supply switching valve is connected between the liquid supply tank and the air supply route, and is provided at or near the light source device, and is configured to supply the liquid to the air supply route by a switching operation. A switching mechanism for sending liquid from the tank, a suction pump connected to the suction path, a passage switching valve inserted in a passage between the suction pump and the suction passage, and a switching mechanism for sending the liquid through the passage switching valve. A cleaning device for an endoscope, comprising a forceps cleaning tip and a forceps tube connected to a pump and to a forceps port of the forceps channel.