JP3499991B2 - Endoscope pipe cleaning tap - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning method in which a flushing liquid is flowed into a fluid conduit and a conduit switching valve of an endoscope after use of the endoscope. The present invention relates to an endoscope flush plug for closing a mouth opening of a cylinder after a pipeline switching valve body is removed. 2. Description of the Related Art FIG. 6 shows a conventional plug for cleaning an endoscope in a pipe, and 11 is a cylinder of an air / water pipe switching valve.
Reference numeral 21 denotes a cylinder of the suction line switching valve. The cylinders 11 and 21 have different inner diameters, and their mouth openings are exposed on the outer surface of the operation unit 1. 14 and 24 are indices formed by different colors surrounding both cylinders 11 and 21. [0004] The cleaning plug 90 has fitting portions 90a and 90b fitted into the mouth openings of the cylinders 11 and 21.
Are formed of elastic rubber integrally with the knob portion 90c on the hand side. The fitting portions 90a and 90b are connected to the cylinder 1 through the fluid lines 12a to 12d, 22a and 22b.
Since the washing liquid flowing into 1, 21 must not leak,
It is fitted tightly into the cylinders 11 and 21. [0006] On the hand side surface portion of the knob portion 90c,
In order to indicate which of the two cylinders 11 and 21 each of the two fitting portions 90a and 90 should be fitted with, for example, as shown in FIG.
Indices 14, 24 provided around the mouth openings of 1, 21
The color marks 94a and 94b having the same color combination as are marked. For example, as shown in FIG. 8, there is an A / W character indicating air / water supply and an S character indicating suction, or the like. [0007] However, in order to form a two-color mark on a cleaning plug formed by integral molding of rubber as described above, it is necessary to perform rubber molding with three colors. The cost of parts is very high. [0008] Further, in the case of distinguishing by letters such as A / W and S, the meaning is difficult to understand depending on the operator who performs cleaning after using the endoscope, and the correct mounting method may not be understood. . SUMMARY OF THE INVENTION It is an object of the present invention to provide an endoscope flushing plug for an endoscope which does not require any manufacturing cost and allows anybody to correctly determine how to attach the endoscope. [0010] In order to achieve the above object, an endoscope flush plug for an endoscope according to the present invention is provided with a plurality of juxtaposed cylinders in which the dimensions of the mouth opening are not the same. After removing the pipe line switching valve element from each of the plurality of cylinders, it is fitted into the mouth opening of the plurality of cylinders from the outside, and is a plug for cleaning the inside of the pipe of the endoscope for closing the mouth opening. A plurality of fitting portions fitted into the mouth opening of the cylinder are formed integrally with the knob portion on the hand side,
A graphic mark indicating a difference in size and shape of a cylinder into which each of the plurality of fitting portions is to be fitted is formed on the surface of the knob portion corresponding to the position of the plurality of fitting portions. Embodiments of the present invention will be described with reference to the drawings. FIG. 2 shows an operation unit 1 of the endoscope, 10 is an air / water supply line switching valve for performing an air / water supply operation, 20 is a suction line switching valve for performing a suction operation, Reference numerals 19 and 29 denote operation buttons which are pressed to perform the operation. FIG. 3 shows an enlarged portion of the air / water supply line switching valve 10 and the suction line switching valve 20. Reference numeral 11 denotes a cylinder of the air / water supply line switching valve 10; This is a cylinder of the pipeline switching valve 20. Both cylinders 11 and 21 are formed in a circular cross section to the back. However, as shown in FIG. 4 showing the shapes of the mouth openings 11a and 21a of both cylinders 11 and 21, the suction side cylinder 21 has a small circular bulge formed in a section near the mouth. Therefore, the two parts are welded and connected for convenience of manufacture. In each of the cylinders 11 and 21, a pipe-like switching valve body (not shown), usually in the form of a piston, is inserted so as to be able to advance and retreat in the axial direction.
9 are connected. However, at the time of cleaning after using the endoscope, FIG.
As shown in FIG.
It is withdrawn out of the cylinders 11 and 21 together with the cylinders 9 and 29 and the like, so that the mouth openings 11 a and 21 a of the cylinders 11 and 21 are exposed on the outer surface of the operation unit 1. Both the cylinders 11 and 21 are fixed to the operating portion 1 by fixing nuts 13 and 23 which are screwed from the outside into the outer peripheral thread portion of the mouth portion protruding from the outer surface of the operating portion 1. 15 and 25 are O-rings for sealing. In the operation unit 1, an air supply pipe 12a, a water supply pipe 12b, an air supply pipe 12c and a water supply pipe 12d are connected to the air supply / water supply cylinder 11, and the suction pipe 22a and the forceps are connected to the suction side cylinder 21. Communication pipe 2 to channel
2b is connected. FIG. 1 shows such a cylinder 11, 21.
2 shows a state in which the intra-pipe washing plug 30 is attached to the mouth openings 11a and 21a. In the cleaning plug 30, short rod-shaped fitting portions 30a and 30b fitted in the mouth openings 11a and 21a of both cylinders 11 and 21 are arranged in line with the gap between the air / water feeding cylinder 11 and the suction cylinder 21. It is arranged and is integrally formed with a grip portion 30c on the hand side by an elastic rubber material. Therefore, both fitting portions 30
a and 30b can be fitted into both cylinders 11 and 21 simultaneously. Both fitting portions 30a and 30b have outer diameters of both cylinders 1 and 21 so that they can be tightly fitted into the mouth openings 11a and 21a of both cylinders 11 and 21 in a deformed state.
It is formed slightly thicker than the inner diameters of the mouth openings 11a and 21a of the first and second openings 21a and 21a. The cross-sectional shape of the fitting portions 30a, 30b is determined by the opening openings 11a, 2a of the cylinders 11, 21.
The air / water supply side fitting portion 30a is formed in a circular shape in accordance with the cross-sectional shape near 1a, and the suction side fitting portion 30b is formed.
Is formed in a two-stage circular shape as shown in FIG. Conical recesses 30d and 30e are formed in the inner end portions of the fitting portions 30a and 30b. The recesses 30d and 30e have bottom diameters that are about half to three-quarters of the diameters of the fitting portions 30a and 30b, and the apexes of the recesses 30d and 30e are located at the mouth openings 11a and 21a of the cylinders 11 and 21. Is formed. Therefore, the fitting portions 30a, 30b
When the is fitted into the cylinders 11 and 21, the rubber fitting portions 30a and 30b are relatively easily deformed inward with a space formed by the recesses 30d and 30e. It can be easily fitted. Since the recesses 30d and 30e are formed in a conical shape, the fitting state gradually becomes harder as the recesses 30d and 30e are fitted deeper, and the sealing performance is improved. Further, if the pressure of the cleaning liquid is applied to the cylinder in a state where the cleaning liquid is completely fitted, a force acts in a direction in which the conical depressions 30d and 30e expand, so that the sealing performance is further improved and no leakage occurs. When the fitting portions 30a and 30b are completely fitted into the cylinders 11 and 21, hook portions 30f formed at both ends of the knob portion 30c are formed at the protruding ends of the fixing nuts 13 and 23. Ta tsuba 16,2
6 and acts as a retainer. As shown in FIG. 5, the air supply / water supply side cylinder 11 and the suction side cylinder 21
Mark 34a, 34b indicating the difference in the size and shape of the mouth openings 11a, 21a is inserted into the fitting portion 30 on the back side.
a and 30b. As shown in FIG. 1, the graphic marks 34a and 34b are formed by rubber-forming the surface of the knob portion 30c by slightly projecting (or retracting). Therefore, if the figure is engraved in a rubber mold, no part cost is required for forming the figure marks 34a and 34b. Then, the operator who cleans the endoscope receives the graphic mark 34a,
The cleaning plug 3 for both the cylinders 11 and 21 is made by comparing 34b with the mouth shapes of the cylinders 11 and 21.
The mounting direction of 0 can be determined without error. According to the present invention, a graphic mark indicating a difference in size and shape of a cylinder into which a plurality of fitting portions are to be fitted is formed on the surface of the knob of the cleaning plug which is a molded product. Since it is molded, there is no component cost for forming the mark, and when used, anyone can make a correct and accurate judgment on the mounting method by comparing it with the dimensions and shapes of multiple cylinders of the figure mark. it can.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side sectional view showing a state in which a cleaning plug according to an embodiment of the present invention is attached to a cylinder. FIG. 2 is a side view of an operation unit of the endoscope according to the embodiment of the present invention. FIG. 3 is a side sectional view of a cylinder portion according to the embodiment of the present invention. FIG. 4 is a front view of a mouth opening of the cylinder according to the embodiment of the present invention. FIG. 5 is a front view of a graphic mark according to the embodiment of the present invention. FIG. 6 is a side sectional view showing a state in which a conventional cleaning tap is attached to a cylinder. FIG. 7 is a front view of a conventional mark. FIG. 8 is a front view of another conventional mark. [Description of Signs] 11, 21 Cylinder 30 Cleaning plugs 30a, 30b Fitting portion 30c Knob portions 34a, 34b Graphic mark

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Claims (1)

(57) [Claims 1] A pipe switching valve body is removed from a plurality of cylinders arranged side by side which are not the same in size and shape at the mouth opening. A plug for cleaning the inside of a conduit of an endoscope which is fitted from the outside and closes an opening of the endoscope, wherein a plurality of fitting portions to be fitted into the opening of the plurality of cylinders are integrally formed with a grip portion on a hand side. Wherein the plurality of fitting portions are each formed with a graphic mark indicating a difference in size and shape of a cylinder to be fitted into the surface of the knob portion corresponding to the position of the plurality of fitting portions. Characteristic endoscope flushing plug.