JPH11104076A - Adapter for washing endoscope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a washing liquid and a disinfectant from flowing back toward a user and spilling out during washing and prevent waste in a suction pipe from entering an air feed tube and a water feed tube. SOLUTION: In the control part 4 of an endoscope 2, a suction tube line 22 and a forceps insertion tube line 16 are combined into a combined tube 26, an air feed tube line 18 and a water feed tube line 20 are combined into a combined tube 30, and the combined tubes 26, 30 are combined into a single combined tube 34. An air feed tube 42 and a water feed tube 44 in a light guide cable 8 are connected to an air/water feed cylinder 12, and a suction tube 46 is connected to a suction cylinder 14. An adapter 60 for washing the endoscope includes a first washing liquid feed passage 64 connected to a syringe 62, a second washing liquid feed passage 66 connecting an air/water feed adapter 52 to the first washing liquid feed passage 64, and a third washing liquid feed passage 68 connecting a suction adapter 54 to the first washing liquid feed passage 64.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adapter for cleaning an endoscope used for examination or treatment of a body cavity.

[0002]

2. Description of the Related Art An endoscope comprises an operation section, an insertion section, an air / water supply cylinder provided in the operation section, a suction cylinder provided in the operation section, and the air / water supply section in the operation section. An air supply pipe and a water supply pipe extending from the cylinder to the insertion section, and a suction pipe extending from the suction cylinder to the insertion section in the operation section are provided. A light guide cable is connected to the operation unit, an optical fiber extending from the operation unit to the insertion unit is housed in the light guide cable, and an air supply pipe and a water supply pipe connected to the air / water supply cylinder. And a suction tube connected to the suction cylinder. After such an endoscope is used for inspection or treatment inside a body cavity, not only the outer surface of the insertion section to be inserted into the body cavity, but also a conduit or the like built into the insertion section or the operation section. Since dirt adheres to the pipes in the light guide cable, in particular, the suction pipe line, the suction cylinder, and the suction pipe, these pipes and cylinders also need to be cleaned and disinfected.

[0003] Cleaning and disinfection of an endoscope is generally performed by inserting a cleaning liquid (in the present invention, a cleaning liquid includes a disinfecting liquid) into the end of a light guide cable at the tip of an insertion portion. It is performed by flowing toward. on the other hand,
There are various types of endoscopes, and an air supply pipe, a water supply pipe, and a suction pipe merge in the operation unit to form a single merged pipe, and there is also a type in which this merged pipe extends in the insertion section. is there.

[0004]

SUMMARY OF THE INVENTION In this type of endoscope,
During cleaning, if the cleaning liquid flows from the air pipe, water pipe, or suction pipe toward the tip of the insertion section, the cleaning liquid flows back from the junction to the end of the light guide cable, that is, to the hand side during cleaning. It overflowed and there was a problem that cleaning was difficult. In addition, when the cleaning liquid flows from the suction pipe, the cleaning liquid flows backward from the junction, and undesired dirt in the suction pipe, the suction cylinder, and the suction pipe enters into an air supply pipe or a water pipe through which the dirt does not pass. The present invention has been devised in view of the above circumstances, the object of the present invention,
During cleaning, the cleaning liquid and disinfecting liquid do not flow backward and overflow, so that cleaning can be performed easily, and the dirt in the suction pipe, suction cylinder, and suction pipe is transported so that the dirt does not pass through. An object of the present invention is to provide an endoscope cleaning adapter which is prevented from entering a trachea or a water pipe.

[0005]

In order to achieve the above object, an endoscope cleaning adapter according to the present invention comprises an operating part, an insertion part connected to a tip of the operating part, and a base connected to the operating part. A light guide cable, an air / water supply cylinder provided in the operation unit, a suction cylinder provided in the operation unit, and an air supply line extending from the air / water supply cylinder to the insertion unit side in the operation unit. And a water supply pipe, a suction pipe extending from the suction cylinder to the insertion section side in the operation unit, and an air supply pipe and a water supply pipe extending in the light guide cable and connected to the air / water supply cylinder. A suction pipe extending in the light guide cable and connected to the suction cylinder, wherein the air supply pipe, the water supply pipe, and the suction pipe are merged in the operation unit to form a single merge pipe. Junction tube is insertion part A first cleaning liquid supply path connected to cleaning liquid supply means, and a base portion of the air supply pipe and water supply pipe provided at an end of the light guide cable. A second cleaning liquid supply path connecting the first cleaning liquid supply path; and a third cleaning liquid supply path connecting the first cleaning liquid supply path to a base of the suction pipe provided at an end of the light guide cable. It is characterized by the following. The present invention also provides the endoscope cleaning adapter, wherein the endoscope cleaning adapter has a tubular member extending a predetermined length in a tubular shape, and a flexible tube protruding from an intermediate portion in the extending direction of the tubular member. Wherein the first cleaning liquid supply path and the second cleaning liquid supply path are formed by the internal passage of the cylindrical member, and the third cleaning liquid supply path is formed by the inside of the flexible tube. And Further, in the invention, it is preferable that the internal passage is formed in a straight line in a direction in which the cylindrical member extends, passing substantially through a center of a cross section of the cylindrical member, whereby the first cleaning liquid supply path and the second cleaning liquid supply path are formed. The road is formed on the same straight line,
The end on the side where the second cleaning liquid supply passage opens in the direction in which the cylindrical member extends is detachably connected to the air supply pipe and the water supply pipe cap provided at the end of the light guide cable. It is characterized by that. Further, the invention is characterized in that the tubular member is made of metal.

If the endoscope cleaning adapter of the present invention is used, the cleaning liquid is simultaneously supplied to the air supply pipe, the water supply pipe, and the suction pipe at the end of the light guide cable.
Even when the air supply pipe, the water supply pipe, and the suction pipe are merged in the operation section, the cleaning liquid does not flow backward from the merged point.

[0007]

Next, an embodiment of the present invention will be described. FIG. 1 is a schematic cross-sectional view of an endoscope cleaning adapter and an endoscope during endoscope cleaning. The endoscope 2 includes an operation unit 4, an insertion unit 6, a light guide cable 8, and the like. The insertion section 6 is formed of a flexible tube, and is connected to the tip of the operation section 4. The operation section 4 is provided with a forceps insertion port 10, and further provided with an air / water supply cylinder 12 and a suction cylinder 14. A forceps insertion conduit 16 extends from the forceps insertion opening 10 toward the insertion portion 6, and an air supply conduit 18 and a water supply conduit 20 extend from the air / water supply cylinder 12 toward the insertion portion 6. Then, from the suction cylinder 14, the suction pipe 22
Is extended. In the operation section 4, the suction line 22
And the forceps insertion conduit 16 merge via a junction 24 to form a merged pipe 26, and the air supply conduit 18 and the water supply conduit 20 form a merged pipe 30 via a merged point 28, and these merged pipes 26, 30 Merge into the operating section 4 via the merging point 32 to form a single merging pipe 34, which extends through the insertion section 6 to the tip thereof.

The light guide cable 8 is connected to a base of the operation unit 4, and an optical fiber (not shown) extends in the light guide cable 8. The light guide cable 8 is provided with a connector portion 36 at an end thereof. Also,
In the light guide cable 8, an air supply pipe 42 and a water supply pipe 4 are provided.
4. The suction pipe 46 is extended, the air supply pipe 42 and the water supply pipe 44 are connected to the air / water supply cylinder 12, and the suction pipe 46 is connected to the suction cylinder 14. At the end of the light guide cable 8, an air pipe 42 and a water pipe 4
An air supply / water supply mouthpiece 52 (corresponding to the air supply pipe and the mouthpiece of the water supply pipe in the claims) for connection to the suction pipe 46 is protruded, and a suction mouthpiece 54 for connection to the suction pipe 46 (claim) (Corresponding to the base of the suction pipe in the range of). When the endoscope 2 is used, forceps are inserted from the forceps insertion port 10,
The air / water supply cylinder 12 is provided with an air / water supply switching valve, and the suction cylinder 14 is provided with an open / close valve. At the time of washing, as shown in FIG. A cylinder stopper 50 is attached to the air / water supply cylinder 12 and the suction cylinder 14, and the forceps insertion port 10 and the openings of the cylinders 12, 14 are closed.

The endoscope cleaning adapter 60 according to the present embodiment has an endoscope of a type in which the air supply line 18, the water supply line 20, and the suction line 22 are merged inside the operation section 4 as described above. 2
A first cleaning liquid supply path 64 connected to cleaning liquid supply means such as a syringe 62; a second cleaning liquid supply path 66 connecting the air / water supply base 52 and the first cleaning liquid supply path 64; And a third cleaning liquid supply path 68 connecting the suction base 54 and the first cleaning liquid supply path 64.

More specifically, as shown in FIG. 2, the endoscope cleaning adapter 60 includes a tubular member 70 extending a predetermined length in a tubular shape, and an extending direction of the tubular member 70 in the extending direction. A flexible tube 72 projecting from an intermediate portion;
0 is made of metal and has excellent durability. The cylindrical member 70 passes through substantially the center of its cross section,
The first cleaning liquid supply path 64 and the second cleaning liquid supply path 66 are formed on the same straight line by this internal path. The flexible tube 72 is attached to the tubular member 70 via a nipple 7202, and the inside of the flexible tube 72 communicates with the internal passage of the tubular member 70.
Defines the third cleaning liquid supply passage 68. At the end on the side where the second cleaning liquid supply passage 66 is opened in the direction in which the cylindrical member 70 extends, a base engaging portion 74 for engaging with the air / water supply base 52 of the connector section 36 is provided. At the other end in the extending direction of the tubular member 70, a syringe engaging portion 76 for engaging with the syringe 62 is formed. An O-ring 7402 and a snap ring 7404 are attached to the outer periphery of the base engaging portion 74, and the O-ring 7402 elastically contacts the inner peripheral portion of the air / water supply base 52, thereby maintaining watertightness to supply air and air. The snap ring 7404 is engaged with the inner circumferential groove of the air supply / water supply base 52 so as to be positioned with respect to the air supply / water supply base 52 and detachably connected thereto. It is configured.

When cleaning the endoscope 2 using the endoscope cleaning adapter 60 according to the present embodiment, first, the forceps insertion port 10 is closed by the forceps plug 48, and the air / water supply cylinder 12 and suction The use cylinder 14 is closed by a cylinder stopper 50. Next, at the end of the light guide cable 8, the end of the flexible tube 72 is attached to the suction base 54, and the base engaging portion 74 of the tubular member 70 is connected to the air / water supply base 5.
2, the tip of the syringe 62 is engaged with the syringe engaging portion 76, and the cleaning liquid is supplied into the cylindrical member 70 by operating the syringe 62. Thus, the cleaning liquid flows from the first cleaning liquid supply path 64 to the second cleaning liquid supply path 66, and at the same time, flows from the first cleaning liquid supply path 64 to the third cleaning liquid supply path 68.

The cleaning liquid is supplied from the air / water supply nozzle 52 to the insertion portion 6 via the air supply pipe 42, the water supply pipe 44, the air / water supply cylinder 12, the air supply line 18, the water supply line 20, and the junction tubes 30, 34. It is discharged from the tip. At the same time, the cleaning solution is
It is discharged from the tip of the insertion section 6 from the suction base 54 through the suction pipe 46, the suction cylinder 14, the suction pipe 22, and the merge pipes 26 and 34. Then, since the cleaning liquid is simultaneously supplied to the air supply pipe 42, the water supply pipe 44, and the suction pipe 46, the backflow from the junction 32 to the junction 26 and the backflow from the junction 32 to the junction 30 are prevented. Guide cable 8
The cleaning liquid is not discharged from the end of the endoscope 2, and the pipes inside the endoscope 2 can be easily and efficiently cleaned. Also,
Since the backflow from the joining pipe 26 to the joining pipe 30 is prevented,
Suction line 22, suction tube 46 and suction cylinder 14
The dirt inside does not flow back to the air supply line 18, the water supply line 20, the air / water supply cylinder 12, the air supply line 42, and the water supply line 44, and the waste in the suction line 22, the suction cylinder 14, and the suction line 46. However, it is possible to solve the problem that the air enters the air supply pipe 18 and the water supply pipe 20, the air / water supply cylinder 12, the air supply pipe 42, and the water supply pipe 44 through which dirt does not pass.

In the above embodiment, the case where a syringe is used as an example of the cleaning liquid supply means has been described.
The present invention is of course applicable to a case where a type other than a syringe is used as the cleaning liquid supply means.

[0014]

As is apparent from the above description, the adapter for cleaning an endoscope of the present invention comprises an operating part, an insertion part connected to the tip of the operating part, and a light connected to the base of the operating part. A guide cable, an air / water supply cylinder provided in the operation unit, a suction cylinder provided in the operation unit, an air supply line extending from the air / water supply cylinder to the insertion unit side in the operation unit, and a supply line. A water pipe, a suction pipe extending from the suction cylinder to the insertion section in the operation unit, an air pipe and a water pipe extending inside the light guide cable and connected to the air / water cylinder, and a light. A suction pipe extending in the guide cable and connected to the suction cylinder, wherein the air supply pipe, the water supply pipe, and the suction pipe are merged into a single merge pipe in the operation unit; Extends through the insert A cleaning adapter endoscope,
A first cleaning liquid supply path connected to the cleaning liquid supply means, a second cleaning liquid supply path connecting the bases of the air supply pipe and the water supply pipe provided at ends of the light guide cable and the first cleaning liquid supply path; And a third cleaning liquid supply path connecting the first cleaning liquid supply path and a base of the suction pipe provided at an end of the light guide cable. Therefore, if the endoscope cleaning adapter of the present invention is used, at the time of cleaning, the cleaning liquid does not flow backward to the hand side and overflows,
Washing can be performed easily, and dirt in the suction line, the suction cylinder, and the suction tube does not enter the air supply tube or the water supply tube.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of an endoscope cleaning adapter and an endoscope during cleaning.

FIG. 2 is an enlarged sectional view of an endoscope cleaning adapter part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 2 Endoscope 4 Operation part 6 Insertion part 8 Light guide cable 12 Cylinder for air supply and water supply 14 Cylinder for suction 18 Air supply line 20 Water supply line 22 Suction line 32 Merge point 34 Merge tube 42 Air tube 44 Water tube 46 Suction Pipe 52 Air supply / water supply base 54 Suction base 60 Endoscope cleaning adapter 64 First cleaning liquid supply path 66 Second cleaning liquid supply path 68 Third cleaning liquid supply path 70 Cylindrical member 72 Flexible tube

Claims (4)

[Claims] An operation unit; an insertion unit connected to a tip of the operation unit; a light guide cable connected to a base of the operation unit; an air / water supply cylinder provided in the operation unit; And an air supply pipe and a water supply pipe extending from the air / water supply cylinder to the insertion section in the operation section, and extending from the suction cylinder to the insertion section in the operation section. A suction pipe, an air supply pipe and a water supply pipe extending in the light guide cable and connected to the air / water supply cylinder, and a suction pipe extending in the light guide cable and connected to the suction cylinder. The air supply pipe, the water supply pipe, and the suction pipe are merged in the operation unit to form a single merged pipe, and the merged pipe is a cleaning adapter for an endoscope extending in the insertion unit, Connected to the cleaning liquid supply means A first cleaning liquid supply path, a second cleaning liquid supply path connecting the base of the air supply pipe and the water supply pipe provided at an end of the light guide cable to the first cleaning liquid supply path, and an end of the light guide cable; An endoscope cleaning adapter, comprising: a base portion of the suction tube provided in the portion; and a third cleaning liquid supply path connecting the first cleaning liquid supply path. 2. The endoscope cleaning adapter according to claim 1, wherein the endoscope cleaning adapter includes a tubular member extending in a tubular shape at a predetermined length, and a flexible tube protruding from an intermediate portion in the extending direction of the tubular member. And a first cleaning liquid supply path and a second
The endoscope cleaning adapter according to claim 1, wherein a cleaning liquid supply path is formed, and the third cleaning liquid supply path is formed by the inside of the flexible tube. 3. The first cleaning liquid supply path and the second cleaning liquid supply path, wherein the internal passage is formed in a straight line in a direction in which the cylindrical member extends, passing substantially through a center of a cross section of the cylindrical member. Are formed on the same straight line, and the end on the side where the second cleaning liquid supply passage is opened in the direction in which the cylindrical member extends is the end of the air supply pipe and the water supply pipe provided at the end of the light guide cable. 3. The endoscope cleaning adapter according to claim 2, wherein the adapter is detachably coupled to the base. 4. The endoscope cleaning adapter according to claim 2, wherein the tubular member is made of metal.