JPH0116176B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cleaning tube used for cleaning various tubes provided in an endoscope.

The endoscope is provided with a channel tube for inserting forceps and for suctioning and removing body fluids, a tube for supplying air and liquid, and the like. Since these tubes become contaminated with use, if they are not cleaned after use, a serious problem arises in that dirt, microorganisms, etc. can enter other patients from the tubes, resulting in so-called nosocomial infections.

Conventionally, in order to clean each of the above-mentioned tubes, that is, the tube to be cleaned, a method as shown in FIG. 1 or 2 has been adopted. First, reference numeral 1 in FIG. 1 is an outer wall of an endoscope operation section, and a mounting hole 2 is bored in this outer wall 1. A connection port body 3 passes through this attachment hole 2 and is fixed with a fixing nut 4. A tube to be cleaned 5 is connected and fixed to one end of the connection port body 3 located inside the operating section by a hose band 6, and a bamboo-shaped locking section 7 is formed on the outer peripheral surface of the other end protruding from the operating section. has been done. A cleaning tube 8 is connected to this locking portion 7, and the cleaning tube 8 supplies cleaning liquid into the tube to be cleaned 5 through the connection port body 3.

In addition, in FIG. 2, a threaded portion 9 is formed on the outer peripheral surface of the other end protruding from the operating portion of the connection port body 3,
A lock nut 10 is screwed into the threaded portion 9, and a base 11, which is connected and fixed to the connection port body 3 by the lock nut 10, is previously fitted to the end of the cleaning tube 8. The tip of this cap 11 is connected to a large diameter portion 12 formed at the end of the connection port body 3.
An O-ring 13 is attached here to maintain a fluid-tight state between the connection port body 3 and the cap 11.

According to such a configuration, the inner circumferential surfaces of the connection port body 3 and the tube to be cleaned 5 can be satisfactorily cleaned by the cleaning liquid supplied from the cleaning tube 8. However, in the above endoscope, the outer peripheral surface of the connection port body 3 protruding from the outer wall 1 of the operation section,
In other words, it is inevitable that the locking part 7 shown in FIG. 1 and the threaded part 9 shown in FIG. Since the threaded portion 9 is covered by the lock nut 10, it is not possible to clean the locking portion 7 and the threaded portion 9 at the same time when cleaning the tube 5 to be cleaned. Therefore, after cleaning the tube 5 to be cleaned, it is troublesome to have to clean the outer circumferential surface of the connection port body 3 using a brush or the like. There is a risk that dirt and microorganisms adhering to the surface may enter the tube 5 to be cleaned.

This invention has been made based on the above circumstances, and its purpose is to provide a cleaning method that enables cleaning of the tube to be cleaned and the outer circumferential surface of the connection port at the same time as cleaning the tube to be cleaned. The aim is to provide tubes for

An embodiment of the present invention will be described below with reference to FIG. In the figure, reference numeral 21 denotes an outer wall of the endoscope operation section, and a mounting hole 22 is bored in this outer wall 21. A connection port body 23 is inserted through the attachment hole 22 and fixed with a fixing nut 24. The connection port body 23
A tube to be cleaned 25 is connected and fixed to one end located in the operating section of the tube 25 with a hose band 26.
There is a cleaning tube 2 on the other end protruding from the operation part.
7 is connected. This cleaning tube 27
The outer peripheral surface of a porous tube 28 as a porous portion made of, for example, a foamed elastic material is coated with a waterproof coat 29 made of synthetic resin or the like. Therefore, the cleaning tube 27 is connected with the inner circumferential surface of the porous tube 28 elastically pressed against the outer circumferential surface of the connection port body 23.

In such a configuration, the cleaning tube 27
When the cleaning liquid is supplied to, most of the cleaning liquid flows through the connection port body 23 to the tube to be cleaned 25, so that the inner circumferential surface of the tube to be cleaned 25 and the connection port body 23 are cleaned. Also, at this time, a part of the cleaning liquid enters the porous tube 28 of the cleaning tube 27 and flows out from the end surface 28a of the porous tube 28 not covered with the prevention coat 29 as shown by the arrow in the figure. Therefore, the flow of the cleaning liquid cleans the outer circumferential surface of the connection port body 23 that the porous tube 28 comes into contact with. That is, the tube to be cleaned 2
5 and the inner peripheral surface of the connection port body 23 at the same time as the connection port body 2
The outer peripheral surface of No. 3 can also be cleaned.

Note that this invention is not limited to the above embodiment,
For example, the cleaning tube 27 may be formed by using an ordinary vinyl tube that does not have liquid permeability, and providing a porous portion only at the end of the inner peripheral surface of the tube that is connected to the connection port body 23. good.

As described above, the present invention provides a cleaning tube that is connected to a connection port body and sends a cleaning liquid to a tube to be cleaned to clean the tube to be cleaned. A porous portion made of an elastic material was provided on the inner peripheral surface of the end portion. Therefore, a part of the cleaning liquid passing through the cleaning tube flows through the porous portion, and this causes the outer peripheral surface of the connection port body covered by the cleaning tube to be exposed to the tube to be cleaned and the connection port body. can be cleaned at the same time as the inner peripheral surface of the

[Brief explanation of drawings]

1 and 2 are sectional views showing a conventional cleaning tube connection structure, respectively, and FIG. 3 is a sectional view of a cleaning tube connection structure showing an embodiment of the present invention. 23... Connection port body, 25... Tube to be cleaned,
28...Porous tube (porous part).

Claims (1)

[Claims] 1. In a cleaning tube connected to the tube to be cleaned via a connection port body, a porous portion made of an elastic material is provided at least on the inner peripheral surface of the end portion of the cleaning tube connected to the connection port body. A cleaning tube featuring: