JP2002209848A - Brush for cleaning inside of pipeline of pipeline of endoscope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brush for cleaning the inside of the pipeline of an endoscope which prevents brush bristles from being pinched between the pipeline and a brush protective member, hardly gives rise to bending, or the like, of a brush shaft and is user friendly. SOLUTION: The brush bristles 2 on the side nearest the brush protective member 5 are formed to the lengths at which the brush bristles 2 do not overlap on the outside surface of the brush protective member 5 even if the brush bristles fall and the brush bristles in other positions are formed gradually longer the more distant from the brush protective member 5 within the length range where the brush bristles 2 do not overlap on the outside surface of the brush protective member 5 when the brush bristles fall.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brush for cleaning the inside of a conduit of an endoscope used for brushing and cleaning the inner surface of the conduit such as a treatment tool insertion channel of the endoscope.

[0002]

2. Description of the Related Art In general, brushes for cleaning the inside of a pipe of an endoscope are generally provided as follows.
A large number of bristles 2 are radially implanted on a brush shaft 3 disposed at a tip portion of the operation shaft 1, and a brush protection member 5 for protecting the brush bristles 2 is attached to a tip side thereof. I have.

[0005] When brushing the inside of the conduit of the endoscope, the state shown in FIG. 5 is prevented, that is, the tip of the brush bristles 2 is fixed to the inner peripheral surface of the conduit 10 and the brush protecting member. The brush bristle 2 and the brush protection member 5 are spaced apart from each other so that the brush bristles 2 and the brush protecting member 5 are not sandwiched between the brush 5 and the outer surface of the brush 5 (see Japanese Utility Model Publication No. 3-10730).
issue).

[0004]

However, if the distance between the brush bristles 2 and the brush protection member 5 is increased as described above, the phenomenon that the brush bristles 2 are caught does not occur. At the time of insertion, the brush shaft 3 is easily bent or caught at that portion, so that the usability may be deteriorated.

Accordingly, the present invention provides a brush for cleaning the inside of a conduit of an endoscope which is easy to use because the brush bristles are not pinched between the conduit and the brush protecting member, and the brush shaft is unlikely to be bent. The purpose is to do.

[0006]

In order to achieve the above object, a brush for cleaning the inside of a pipe of an endoscope according to the present invention is provided with brush bristles protruding from a brush shaft arranged at a distal end portion of an operation shaft. In an endoscope cleaning brush in which a brush protection member is provided on the front side or the rear side of the brush bristles, the length of the bristles closest to the brush protection member is determined by the length of the bristles. In addition to forming a length that does not overlap the outer surface of the brush protection member even if it falls down, the length of brush bristles at other positions,
In a range where the brush bristles do not overlap with the outer surface of the brush protection member when the brush bristles fall, the brush bristles are formed to be longer as the brush bristles are separated.

[0007] The length of the brush bristle may be gradually increased in the entire range as the distance from the brush protective member increases, or the length of the bristle gradually increases as the distance from the brush protective member increases. It may be formed to have a certain length at a position at least a certain distance from the brush protection member.

[0008]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a distal end portion of a brush for cleaning the inside of a conduit of an endoscope. For example, a distal end of a flexible operation shaft 1 made of a stranded wire or a coil pipe made of a stainless steel wire or the like is extended straight. A brush shaft 3 is formed. However,
The brush shaft 3 may be connected to the tip of the operation shaft 1 via a pipe material or the like.

The brush shaft 3 is formed, for example, by bringing together two spring-like stainless steel wires, and a large number of brush bristles 2 are implanted between the two strands. ing.

Each brush bristle 2 is a short, uniform length flexible fiber made of, for example, a polyamide resin having a high elasticity, and is tightly sandwiched between two stainless steel wires forming a brush shaft 3. In this state, they are arranged so as to project radially about the brush shaft 3.

At the tip of the brush shaft 3, for example, a disk-shaped metal brush protection member 5 is formed in order to prevent the brush bristles 2 from being deformed or damaged by restricting insertion into a pipe having an excessively small inner diameter. Is attached. However, the brush protection member 5 may be made of plastic, and may have a spherical shape, a conical shape, or other various shapes.

The protruding length of the brush bristles 2 from the brush shaft 3 (hereinafter referred to as "brush length") is the shortest at a position closest to the brush protection member 5, and is gradually longer as the brush bristles are separated from the brush protection member 5. .

However, even at the brush bristles 2 closest to the brush protection member 5, the bristle length is formed longer than the radius of the brush protection member 5, the bristle protrudes sideways from the brush protection member 5, and the brush bristles. The bristle length is formed so that it does not overlap with the outer surface of the brush protection member 5 even if it falls down to the protection member 5 side (that is, it does not become sandwiched between the conduit 10 and the brush protection member 5 as shown in FIG. 5). ing.

Further, the other bristle 2 whose bristle length gradually increases as it moves away from the brush protection member 5 does not overlap the outer surface of the brush protection member 5 when it falls down toward the brush protection member 5 side. It is formed in hair length.

The cleaning brush for cleaning the inside of the conduit of the endoscope thus constructed is not sandwiched between the inner periphery of the conduit in which the brush bristles 2 are inserted and the outer surface of the brush protection member 5, and such a brush is provided. It is not necessary to provide a wide space between the brush bristles 2 and the brush protection member 5 in order to make the brush shaft 3 bend easily or the like.

The present invention is not limited to the above-described embodiment. For example, as shown in FIG.
Although the bristle length is gradually increased as it moves away from the brush protection member 5, it may be formed at a certain length at a position more than a certain distance from the brush protection member 5.

Further, as shown in FIGS. 3 and 4, the present invention is applied to a brush for cleaning the inside of a pipe in which a brush protecting member 5 is arranged on the rear side of the brush bristles 2, and the brush bristles 2 move rearward. It may be formed to have a gradually narrowed shape. 6 is
A tip binding tip for binding the tip of the brush shaft 3.

[0018]

According to the present invention, the length of the brush bristles closest to the brush protection member is formed so as not to overlap the outer surface of the brush protection member even when the brush bristles fall. The length of the brush bristles at the position, within a range that does not overlap the outer surface of the brush protection member when the brush bristles fall, gradually increases as the brush bristles are separated, so that the brush bristles are connected to the conduit. There is no need to leave a wide space between the brush bristles and the brush protection member in order to prevent the brush shaft from being caught between the brush protection member and the brush protection member.

[Brief description of the drawings]

FIG. 1 is a side view of a distal end portion of a brush for cleaning an inside of a conduit of an endoscope according to a first embodiment of the present invention.

FIG. 2 is a side view of a tip portion of a brush for cleaning the inside of a conduit of an endoscope according to a second embodiment of the present invention.

FIG. 3 is a side view of a distal end portion of a brush for cleaning the inside of a pipe of an endoscope according to a third embodiment of the present invention.

FIG. 4 is a side view of a tip portion of a brush for cleaning the inside of a pipe of an endoscope according to a fourth embodiment of the present invention.

FIG. 5 is a side cross-sectional view showing a state in which a cleaning brush in a pipe of a conventional endoscope is inserted into the pipe.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Operating shaft 2 Brush hair 3 Brush shaft 5 Brush protection member 10 Pipe line

Claims (3)

[Claims] 1. An endoscope having a brush shaft protruding from a brush shaft disposed at a distal end portion of an operation shaft, and a brush protection member provided on a front side or a rear side of the brush bristle. In the cleaning brush, the length of the brush bristles closest to the brush protection member is formed so as not to overlap the outer surface of the brush protection member even if the brush bristles fall, and the brush at another position An endoscope tube characterized in that the length of the bristle is gradually increased as the brush bristles fall away from the brush protection member within a range that does not overlap the outer surface of the brush protection member. Road cleaning brush. 2. The brush bristles have a length in the whole range.
2. The brush for cleaning the inside of a pipe of an endoscope according to claim 1, wherein the brush is formed to be longer as the distance from the brush protecting member increases. 3. The brush bristle is formed such that the length of the brush bristle is gradually increased as the brush bristle is separated from the brush bristle member, and is formed at a fixed length at a position distant from the brush protector by a predetermined distance or more. Brush for cleaning the inside of a pipe of an endoscope.