JP3435234B2 - Method for manufacturing endoscope conduit cleaning tool - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope pipe cleaning tool for rubbing and cleaning the inside of a pipe provided in an endoscope. 2. Description of the Related Art Conventionally, a pipe cleaning tool for rubbing and cleaning the inside of a pipe of an endoscope is conventionally provided with a shaft 51 formed of a stranded wire as shown in FIG. A large number of straight fibrous materials 52 are radially sandwiched between the twisted portions to form brush hairs. [0003] In the above-described structure, the brush bristles are formed of independent fiber materials for each brush bristles. The area is small. [0004] Therefore, when the axial length of the brush portion cannot be made sufficiently long so that it can be inserted into a thin and winding pipe, the inner peripheral surface of the pipe is rubbed all over. Cleaning was incomplete due to inability to do so. [0005] Further, when the twist of the stranded wire is slightly loosened, the fiber material at that portion falls into the conduit of the endoscope during the brushing, and the endoscope is used without being noticed. Failures such as road blockage could occur. Therefore, the present invention has a large rubbing area with respect to the inner peripheral surface of the conduit of the endoscope, so that the inner peripheral surface can be easily brushed all over, and furthermore, the rubbing member does not fall off and can be used safely. It is an object of the present invention to provide an endoscope conduit cleaning tool that can perform the cleaning. In order to achieve the above object, a pipe cleaning device for an endoscope according to the present invention provides a brush made of a fiber material at a twisted portion of a shaft formed of a twisted wire. In the endoscope duct cleaning tool in which the bristles are sandwiched and the brush bristles are arranged radially around the shaft, the brush bristles radially protruding from the shaft are bent back into a loop at the protruding end thereof, The extended portion is sandwiched between the twisted portions of the shaft, and a plurality of brush bristles are continuously formed of one fiber material. The brush bristles may be formed of one continuous fibrous material over the entire length. According to the method of manufacturing a conduit cleaning tool for an endoscope of the present invention, a fiber material is continuously wound around a pair of thread-wound arms arranged at an interval, and the wound fiber material is used as a tip. Is pinched from the side with a pair of fixed core wires, and the pair of core wires are twisted with the fiber material interposed therebetween, and at the same time, the pair of thread-wound arms are rotated in the same direction as the core wire. It is characterized by doing so. [0009] In addition, in the endoscope conduit cleaning tool of the present invention, the scraping member formed of a substantially plate-like elastic member is spirally twisted by a half pitch or more, and the twisting of the scraping member is performed. The center axis portion of the scraping member is sandwiched and fixed between a pair of core wires twisted in accordance with the above. An embodiment will be described with reference to the drawings. FIG.
1 shows an endoscope conduit cleaning tool according to a first embodiment of the present invention, in which a shaft 2 on which brush bristles 1 are radially attached;
Are inserted into and fixed to the tip of a flexible shaft 3 composed of a tightly wound coil pipe. A cap 5 is fixed to the tip of the shaft 2. The flexible shaft 3 is formed, for example, by winding a stainless steel wire into the same diameter in a coil shape in an elongated manner.
A rubber elastic disk 4 having a diameter slightly smaller than the outer diameter of the brush bristles 1 is attached to a connection between the flexible shaft 3 and the shaft 2. The shaft 2 is formed of a stranded wire in which two stainless steel wires are stranded, and a brush hair 1 made of a fiber material is sandwiched between the stranded portions, and the shaft 2 is radially centered on the shaft 2. It is fixed to. Nylon, wool and other various materials can be used as the fiber material of the brush bristles 1. The brush bristles 1 are bent back in a loop at a protruding end portion radially protruding from the shaft 2, and an extension thereof is again sandwiched between the twisted portions of the shaft 2 and fixed. It is formed continuously from the fiber material of the book. However, a plurality of fiber materials may be used as a whole. In use of the endoscope conduit cleaning tool thus constructed, as shown in FIG. 2, the inner peripheral surface of the conduit 10 of the endoscope has a loop-like shape of the brush bristles 1 as shown in FIG. Since the brush ends are rubbed, the rubbing area of the brush bristles 1 is large. Therefore, even if the length of the shaft 2 on which the brush bristles 1 are protruded is short, the inner peripheral surface of the conduit 10 can be rubbed without leakage. Since one fiber material is repeatedly sandwiched and fixed to the shaft 2, even if the twist of the shaft 2 is partially loosened, the brush hairs 1 may fall off the shaft 2. Absent. Further, since the elastic disk 4 disposed adjacent to the brush bristles 1 moves so as to wipe the inner peripheral surface of the conduit 10, it is rubbed by the brush bristles 1 and rises from the inner peripheral surface of the conduit 10. The waste can be pushed out of the pipeline 10 by the elastic disk 4. FIG. 3 shows a method of manufacturing the endoscope conduit cleaning tool of the above embodiment. Here, first, a single fiber material 22 is continuously wound around a pair of rod-shaped thread winding arms 21 arranged in parallel at an interval so as not to overlap, and the wound fiber material 22 is It is pinched from the side by a pair of core wires 23 having fixed ends. Then, the pair of core wires 23 are twisted and twisted as shown by the arrow A with the fibrous material 22 sandwiched between the center portions of the pair of thread winding arms 21 from the outside, and at the same time, the pair of thread winding arms 21 are twisted. 21 is the core wire 2 as shown by the arrow B.
Rotate in the same direction as 3. At this time, the thread winding arm 21 is pulled down in the axial direction as shown by the arrow C so that the fiber material 22 is evenly sandwiched between the core wires 23. In this way,
A pair of core wires 23 are twisted together to form the shaft 2,
The fiber material 22 becomes the brush bristles 1. FIGS. 4 and 5 show endoscope conduit cleaning tools according to second and third embodiments of the present invention, in which a scraping member 31 formed of a plate-like elastic member is used. Is helically twisted in a male screw shape, and a pair of core wires 32 twisted in accordance with the torsion of the rubbing member 31, between the pair of core wires 32.
Are fixed by sandwiching the central shaft portion of the same. The rubbing members 31 are arranged at a twist angle of 360 ° (one pitch) in the embodiment of FIG. 4, and are arranged at 180 ° (half pitch) in the embodiment of FIG. If so, the inner peripheral surface of the pipe can be rubbed without any loss by a single brushing operation. In addition, as the rubbing member 31, rubber or a so-called sponge can be used. According to the present invention, the brush bristles radially protruding from the shaft are bent back into a loop at the protruding end portion, and the extension portion is sandwiched between the twisted portions of the shaft.
Since a plurality of brush bristles are formed continuously with a single fiber material, the brush bristles have a large rubbing area, so that the inner peripheral surface of the endoscope channel can be easily brushed all over, and furthermore, a rubbing member It can be used safely without falling off. If the bristle is formed of one continuous fiber material over the entire length, the possibility of falling off is minimized. Further, by forming a scraping member by spirally twisting a substantially plate-shaped elastic member at a half pitch or more, the inner peripheral surface of the conduit of the endoscope can be brushed by a single brushing operation. It can be thoroughly cleaned by rubbing all over.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of an endoscope conduit cleaning tool according to a first embodiment. FIG. 2 is a side sectional view of the use state of the endoscope conduit cleaning tool of the first embodiment. FIG. 3 is a perspective view illustrating a method of manufacturing the endoscope conduit cleaning tool of the first embodiment. FIG. 4 is a side view of an endoscope conduit cleaning tool according to a second embodiment. FIG. 5 is a side view of an endoscope conduit cleaning tool according to a third embodiment. FIG. 6 is a side view of a conventional endoscope cleaning brush. [Description of Signs] 1 brush bristles 2 shaft

Continuation of the front page (56) References JP-A-4-312437 (JP, A) JP-A 52-43968 (JP, U) JP-A 61-116873 (JP, U) JP-A 1-69461 (JP) , U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61B 1/00

Claims (1)

(57) [Claim 1] A fibrous material is continuously wound around a pair of thread-wound arms arranged at an interval, and the wound fibrous material is wound on a pair of fixed ends. The core wire is sandwiched from the side, the pair of core wires are twisted in a state where the fiber material is sandwiched therebetween, and at the same time, the pair of thread winding arms are rotated in the same direction as the core wire. A method for producing an endoscope conduit cleaning tool.