JP2005245668A - Connector for cleaning water pipe of endoscope - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector for cleaning a water pipe of an endoscope capable of cleaning the water pipe thoroughly and credibly irrespective of whether the endoscope has only one water pipe system or has two water pipe systems comprising a main water pipe and a secondary water pipe. <P>SOLUTION: A main pipe connecting plug 40 and a secondary pipe connecting plug 50 are arranged in parallel and are connected to the tip end of a common cleaning liquid injection tube 60. The main pipe connecting plug 40 is provided with a communication hole 41 for connecting the cleaning liquid injection tube 60 and the main water pipe 12 when the plug is plugged into a water supply tank socket 13. The secondary pipe connecting plug 50 is provided with an open and close valve 53 which opens to connect the cleaning liquid injection tube 60 and the secondary water pipe 19 when the plug is plugged into an injection device socket 20 and which closes to block up a communicating section 70 connected to the cleaning liquid injection tube 60 when the plug is not plugged into the injection device socket 20. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a connector for cleaning a water supply pipe of an endoscope used when cleaning the inside of a water supply pipe connected to an endoscope.

Endoscopes generally have a built-in water pipe for passing water to be blown toward the surface of the observation window placed at the tip of the insertion section. In order to wash away the dirt on the mucous membrane surface, an auxiliary water supply pipe for passing water blown out in the observation direction is provided (for example, Patent Document 1).
JP 2001-292958 A

When cleaning the endoscope after using the endoscope, it is necessary to thoroughly clean not only the outer surface of the insertion portion but also the inner surface of the water supply conduit through the cleaning liquid.
Therefore, in order to clean an endoscope with two water supply pipes, a main water supply pipe and a sub-water supply pipe, two cleaning liquid injection tubes for injecting the cleaning liquid in the pipe must be provided. It was uneconomical in structure.

  Also, since there are only a few endoscopes that have a sub-water supply line, if you are inadvertently, connect the connection port of the cleaning liquid injection tube only to the main water-supply line and connect to the sub-water supply line. You may forget.

  Therefore, the present invention is either when the endoscope has only one system of water supply pipes or when the endoscope has two systems of water supply pipes, a main water supply pipe and a sub-water supply pipe. Another object of the present invention is to provide an endoscope water-supply line cleaning connector that can reliably clean the entire water-supply line.

  In order to achieve the above object, the endoscope water supply pipe cleaning connector according to the present invention includes a water supply tank receptacle and an auxiliary water supply pipe, which are inlet caps of a main water supply pipe projecting in line with the endoscope. A main pipe connection plug and a sub pipe connection plug, which are simultaneously connected to a water injection device receptacle that is an inlet pipe of the road, are connected and arranged side by side at the tip of the common cleaning liquid injection tube. Is formed with a communication hole that connects the cleaning liquid injection tube and the main water supply pipe when connected to the water supply tank receptacle, and the auxiliary pipe connection plug is connected to the water injection apparatus receptacle to inject the cleaning liquid. An open / close valve is provided that opens to allow the tube and the sub-water supply conduit to communicate with each other, and closes the communicating portion with the cleaning liquid injection tube when the tube is not connected to the water injection device receptacle.

  The on-off valve is urged by the urging member and is normally in a position to close the communication portion with the cleaning liquid injection tube, and when the sub-line connection plug is connected to the water injection device receptacle, the urging member thereby You may have a slide valve body which moves to the position which opens the communication part with a washing | cleaning liquid injection tube against this urging | biasing force.

  According to the present invention, since it is necessary to provide only one system for the cleaning liquid injection tube, the cost of the apparatus can be suppressed, and when the endoscope has only one system for supplying water, the main channel connection is possible. When only the plug can be connected to the water tank receptacle and the inside of the water supply line can be cleaned, the endoscope has two water supply lines, the main water supply line and the auxiliary water supply line. The main pipe connection plug and the sub pipe connection plug provided side by side can be connected to the water supply tank receptacle and the water injection apparatus receptacle, and the main water supply pipe and the auxiliary water supply pipe can be cleaned without forgetting. it can.

  A main pipe connection plug that is simultaneously connected to a water supply tank receiving base that is an inlet base of a main water supply pipe and a water injection device receiving base that is an inlet base of a sub-water supply pipe protruding in parallel with the endoscope; A sub-line connection plug is connected to the tip of the common cleaning liquid injection tube, and the main line connection plug communicates the cleaning liquid injection tube and the main water supply line when connected to the water tank receptacle. A communication hole is formed, and the sub-line connection plug is connected to the water injection device receptacle to open the state in which the cleaning liquid injection tube and the sub-water supply pipeline communicate with each other, and is not connected to the water injection device receptacle. In the state, an on-off valve was provided to close the communication portion with the cleaning liquid injection tube.

Embodiments of the present invention will be described with reference to the drawings.
FIG. 2 is a piping diagram of the entire configuration of the endoscope. The endoscope has a connector portion that is connected to a light source device (not shown) by connecting the operation portion 2 to the proximal end of the flexible insertion portion 1. 3 is attached to the tip of the connecting flexible tube 4 extending rearward from the operation unit 2.

  Then, almost all the pipes (the air supply pipe 11, the main water supply pipe 12, the suction pipe 15, and the auxiliary water supply pipe 19) pass through the operation unit 2 from the connection flexible pipe 4 and in the insertion unit 1. It is inserted through the entire length.

  Among them, the air supply pipe 11 and the main water supply pipe 12 for sending air and water to be blown to the surface of the observation window arranged on the distal end surface of the insertion portion 1 are the water supply tank receiving cap 13 as the inlet. Are juxtaposed in parallel with the side surface of the connector part 3, and an air / water supply operation valve 14 is inserted and connected to the operation part 2 in the middle position.

  Further, with respect to the suction pipe 15, a suction base 17 for connecting an external suction device (not shown) is provided on the side surface opposite to the water supply tank receiving base 13 of the connector portion 3, so A suction operation valve 18 is inserted and connected to the portion 2, and communicates with the passage from the treatment instrument insertion port 16 on the way.

  The auxiliary water supply pipe 19 is opened in the observation direction at the distal end surface of the insertion portion 1 so as to spray water toward the subject, and a water injection device receiving base 20 that is the inlet is aligned with the water supply tank receiving base 13. And projecting from the side surface of the connector portion 3.

  FIG. 1 shows a main pipe connection plug 40 that is connected to a water supply tank receiving base 13 and a water injection apparatus receiving base 20 that are provided in parallel with the connector portion 3 in parallel with the tip of a common cleaning liquid injection tube 60. And the sub-line connection plug 50 are opposed to each other.

  At the bottom of the cap cylinder 24 of the water tank receiving cap 13 provided so as to protrude from the connector section 3, an air supply pipe 11 is formed in the peripheral portion, and a water supply pipe from a water tank (not shown) is provided at the axial position. A water supply receiving pipe 25 to which the road is connected is projected at the axial position, and an O-ring 26 for sealing the connection fitting surface is attached to the water supply receiving pipe 25, and is mainly located at the back of the water supply receiving pipe 25. A water supply line 12 is connected.

  At the position close to the bottom in the cap cylinder 33 on the water injection device receiving cap 20 side, a rubber-made block that prevents the fluid from flowing backward from the sub-water supply pipe line 19 connected to the center of the bottom of the cap cylinder 33. A check valve 36 is arranged.

  The check valve 36 is attached to a tip portion of a check valve support tube 34 that can be inserted into and removed from the mouth opening side of the mouthpiece tube 33, and water is passed through the side wall portion of the check valve support tube 34. A hole 37 is formed. Reference numeral 35 denotes a sealing O-ring, and reference numeral 39 denotes a knob ring attached to the proximal end of the check valve support tube 34.

  With such a configuration, when a water injection device (not shown) is connected to the water injection device receiving base 20 (strictly, to the check valve support tube 34 of the water injection device reception base 20) and water is injected, the water flows through the water passage hole. 37, the check valve 36 is fed into the auxiliary water supply pipe 19 while being elastically deformed from the outer surface side toward the inner side.

  The main pipe connection plug 40 has a distal end of the cleaning liquid injection tube 60 connected to the base end portion, and the front half is formed into a shape that is inserted straight into the cap cylinder 24 of the water tank receiving cap 13. Has been.

  The main line connection plug 40 is straightly formed with a straight communication hole 41 that directly connects the inside of the cap cylinder 24 and the cleaning liquid injection tube 60 when connected to the water tank receiving cap 13. Reference numerals 42 and 43 denote a sealing O-ring and a retaining click C-ring for the cap cylinder 24 of the water tank receiving cap 13.

  The sub-line connection plug 50 is connected to the main line so that the distance between the axes with the main line connection plug 40 is the same as the distance between the axes between the water supply tank receptacle 13 and the water injection apparatus receptacle 20. The plug 40 is connected in parallel with the branch communication pipe 70.

  The sub pipe connection plug 50 is provided with a cylinder hole 51 that is opened only in the front direction facing the water injection tool receptacle 20 at the axial position, and the cylinder hole 51 and the main pipe connection plug 40 are in direct communication with each other. The hole 41 communicates with the branch communication pipe 70. An annular seal member 52 is attached so as to surround the side opening of the cylinder hole 51 communicating with the branch communication pipe 70.

  A piston-like slide on / off valve 53 (on / off valve) is fitted in the cylinder hole 51 so as to be slidable in the axial direction. The slide on / off valve 53 is a compression coil spring 54 disposed at the bottom of the cylinder hole 51. The biasing member is always biased in the direction of being pushed forward from the cylinder hole 51 by the biasing member. 55 is a stopper for preventing the slide opening / closing valve 53 from falling out of the cylinder hole 51 due to the urging force.

  The front half of the slide opening / closing valve 53 protruding forward from the auxiliary pipe connection plug 50 is formed so as to be insertable / removable with respect to the check valve support cylinder 34 of the water injection device receptacle 20, and the check valve support It abuts on a step portion 38 formed in the middle of the cylinder 34. Reference numerals 57 and 58 denote a sealing O-ring and a retaining click C-ring for the check valve support cylinder 34.

  The slide opening / closing valve 53 is formed with an L-shaped valve hole 56 having both ends opened at the side surface and the front end surface of the intermediate portion, and the side surface opening 59 is normally in a position communicating with the branch communication pipe 70. It is shifted further forward.

  As a result, in a normal state, as shown in FIG. 1, the communicating portion with the branch communication pipe 70 is closed by the side surface of the slide opening / closing valve 53 on the side of the auxiliary pipe connection plug 50, and the closed state is the sealing member 52. The cleaning liquid injection tube 60 and the valve hole 56 are not in communication with each other.

  FIG. 3 shows a state in which the main pipe connection plug 40 and the sub pipe connection plug 50 are connected to the water tank receiving base 13 and the water injection apparatus receiving base 20 when the endoscope that has been used is cleaned and disinfected. Yes.

  Since the distance between the axes of the main pipe connection plug 40 and the sub pipe connection plug 50 and the distance between the axes of the water supply tank receiving base 13 and the water injection apparatus receiving base 20 are equal, the main pipe connecting plug 40 and the sub pipe The road connection plug 50 is simultaneously connected to the water supply tank receiving base 13 and the water injection apparatus receiving base 20.

  When the main pipe connection plug 40 is connected to the water supply tank receptacle 13, the cleaning liquid injection tube 60 communicates with the air supply pipe 11 and the main water supply pipe 12 through the direct communication hole 41 and the cap cylinder 24. Thus, the cleaning liquid is poured into the air supply pipe line 11 and the main water supply pipe line 12 from the cleaning liquid injection tube 60.

  On the other hand, when the sub-line connection plug 50 is connected to the water injection device receptacle 20 and the slide opening / closing valve 53 is inserted into the check valve support cylinder 34 of the water injection appliance receptacle 20, the tip of the slide opening / closing valve 53 is non-returned. By contacting the stepped portion 38 of the valve support cylinder 34, the slide opening / closing valve 53 sinks into the cylinder hole 51 against the urging force of the compression coil spring 54, and the side opening 59 of the valve hole 56 is connected to the branch communication pipe 70. Displaces to a communicating position.

  As a result, the cleaning liquid injection tube 60 and the auxiliary water supply pipe line 19 communicate with each other via the branch communication pipe 70, the valve hole 56, the water flow hole 37, and the like, and the cleaning liquid sent from the cleaning liquid injection tube 60 is non-returned. The valve 36 is deformed and poured into the auxiliary water supply line 19.

  FIG. 4 shows a state where the main pipe connection plug 40 is connected to the water supply tank receptacle 13 of the endoscope which does not have the auxiliary water supply pipeline 19 (and therefore does not have the water injection instrument receptacle 20). In addition, since there is no connection partner, the secondary pipe connection plug 50 is in a floating state.

  However, in this state, the outlet side of the branch communication pipe 70 is closed by the slide on / off valve 53 of the sub pipe connection plug 50, so that the cleaning liquid sent through the cleaning liquid injection tube 60 is It flows into the air supply pipe 11 and the main water supply pipe 12 without flowing out to the pipe connection plug 50 side.

It is side surface sectional drawing of the connector for water-supply-pipe washing | cleaning of the endoscope of the Example of this invention. It is a piping figure in the whole endoscope composition of the example of the present invention. It is side surface sectional drawing of the state which wash | cleans simultaneously the inside of the main water supply pipe line and the sub-water supply pipe line by the water supply pipe line washing | cleaning connector of the endoscope of the Example of this invention. It is side surface sectional drawing of the state which wash | cleans only the inside of the main water supply pipe line by the connector for water supply pipe line washing | cleaning of the endoscope of the Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Insertion part 2 Operation part 3 Connector part 11 Air supply line 12 Main water supply line 13 Water supply tank receptacle 19 Sub-water supply line 20 Water injection apparatus receptacle 40 Main line connection plug 41 Direct communication hole 50 Sub-line connection plug 51 Cylinder Hole 53 Slide open / close valve (open / close valve)
54 Compression coil spring (biasing member)
56 Valve hole 59 Side opening 60 Cleaning liquid injection tube 70 Branch communication pipe

Claims (2)

A main pipe connection plug that is simultaneously connected to a water supply tank receiving base that is an inlet base of a main water supply pipe and a water injection device receiving base that is an inlet base of a sub-water supply pipe protruding in parallel with the endoscope; The auxiliary pipe connection plug is connected and arranged side by side at the tip of the common cleaning liquid injection tube,
The main pipe connection plug is formed with a communication hole that communicates the cleaning liquid injection tube and the main water supply pipe when connected to the water tank receptacle.
The sub pipe connection plug opens in a state where the cleaning liquid injection tube and the sub water supply pipe communicate with each other by being connected to the water injection instrument receptacle, and is not connected to the water injection instrument receptacle. A connector for cleaning a water supply pipe of an endoscope, characterized in that an open / close valve is provided that closes a communication portion with the cleaning liquid injection tube. The on-off valve is urged by the urging member and is normally in a position to close the communication portion with the cleaning liquid injection tube, and when the sub-line connection plug is connected to the water injection device receptacle, 2. The endoscope water supply pipe cleaning connector according to claim 1, further comprising a slide valve body that moves to a position where the communicating portion with the cleaning liquid injection tube is opened against the urging force of the urging member.

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