JPH09135836A - Endoscope brush with cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a washing liquid filling port for washing the internal space of a tube, make a structure compact and allow single-hand operation. SOLUTION: A filling port 114 to fill a tube 1 with a fluid is laterally projected from an operation part 10, and a collar 117 is projected from a position behind the filling port 114 at such a gap as allowing the insertion of the forefinger or the middle finger. Furthermore, a thumb hook 121 connected to the base end of an operation wire 2 for allowing the insertion of the thumb is positioned at the back of the collar 117, so as to be capable of freely moving relative thereto.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brush with a cover for an endoscope, which is passed through a forceps channel of an endoscope and used for performing scraping cytology.

[0002]

2. Description of the Related Art FIG. 4 shows a conventional brush with a cover for an endoscope, in which an operation wire 52 is inserted into an elongated flexible tube 51 so as to be movable back and forth in the axial direction. The brush bristles 53 attached to the tip of the operation wire 52
Are freely placed in and out of the tubular portion 54 formed at the tip of the flexible tube 51.

A knob 55 is attached to the proximal end of the flexible tube 51.
Are connected to each other, the knob 55 is grasped with a fingertip, and the finger hook 56 connected to the proximal end of the operation wire 52 is moved forward and backward, so that the brush bristles 53 are rubbed against the surface of the affected area or the tubular portion 54 It can be moved in and out.

However, with the above-mentioned brush with a cover for an endoscope, since it is not possible to operate the finger rest 56 with the hand holding the knob 55, both hands are required for the operation. Often very inconvenient.

Therefore, as shown in FIG. 5, an operating portion 60 having a slider ring 61 slidable in the advancing / retreating direction of the operating wire 52 is connected to a proximal end of a flexible tube 51. . 62 is a flexible tube 51
A tube fixing ring for fixing the
Is a wire fixing ring for fixing the operation wire 52 to the slider wheel 61.

In the case of such a brush with a cover for an endoscope, by passing the thumb through the thumb rest 64 provided on the main body of the operation portion 60, the index finger and the middle finger of the same hand are hooked on the slider ring 61 and moved. The brush bristles 53 at the tip can be moved back and forth via the operation wire 52.

[0007]

It is demanded that not only the endoscope apparatus main body but also various treatment tools can be completely cleaned and disinfected after use. Therefore, in the case of a brush with a cover for an endoscope, it is desirable to allow the cleaning liquid to flow into the flexible tube 51.

However, in the conventional brush with a cover for an endoscope as shown in FIG. 5, the operating portion is originally very large. Therefore, if a cleaning liquid inlet is further provided in this operating portion, the operating portion is The part becomes larger and the operability is significantly deteriorated.

It is therefore an object of the present invention to provide a brush with a cover for an endoscope, which has a cleaning liquid inlet for cleaning the inside of a tube and is small in size and can be easily operated with one hand.

[0010]

In order to achieve the above object, a brush with a cover for an endoscope according to the present invention has an operation wire arranged in an elongated tube so as to be movable back and forth in the axial direction, and the distal end of the operation wire. The brush bristles were attached to the tube, and the operation wire provided at the proximal end side of the tube was operated to move the operation wire forward and backward, thereby allowing the brush bristles to move in and out of the tubular portion formed at the tip of the tube. In the brush with a cover for an endoscope, an injection port for injecting a fluid into the tube is provided on the operation portion so as to project laterally, and an index finger or a middle finger can be inserted behind the injection port. In addition to projecting the collar at regular intervals, a thumb hook that is connected to the proximal end of the operation wire and into which the thumb can be inserted is arranged behind the collar so as to be movable with respect to the collar. To do.

[0011]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a brush with a cover for an endoscope according to an embodiment of the present invention. For example, an operation wire 2 is inserted into a slender flexible tube 1 made of tetrafluoroethylene resin so as to be able to advance and retract in the axial direction. Has been done. Brush bristles 3 are attached to the tip of the operation wire 2, and can freely move in and out from the inside of a tubular portion 4 formed at the tip of the flexible tube 1.

An operating portion 10 is provided on the proximal end side of the flexible tube 1.
Is provided. The operation part 10 is composed of a fixed part 11 connected to the base end of the flexible tube 1 and a movable part 12 connected to the base end of the operation wire 2 behind the fixed part 11. A thumb rest 121 into which a thumb can be inserted is attached to the movable portion 12 so as to be rotatable around the axis of the operation wire 2.

FIG. 2 shows the fixing portion 11 in an enlarged manner. The holding nut 11 screwed to the tip side of the main body 111.
The base end of the flexible tube 1 is pressed against and fixed to the main body 111 by 2.

In the main body 111, a wire insertion hole 113 through which the operation wire 2 penetrates straight is formed. An injection port 114 for injecting a liquid such as a cleaning liquid into the wire insertion hole 113 is provided so as to project laterally from the main body 111.

The injection port 114 has the same shape as a so-called luer lock type injection needle base, and has a height (for example, about 1 cm to 2 cm) at which the index finger or the middle finger along the outer peripheral surface of the main body 111 is caught. It is provided so as to project at a substantially right angle from 111, and communicates in a T-shape with the wire insertion hole 113 inside the main body 111.

The shaft body 11 screwed to the rear end side of the main body 111
A flange 117 is formed on the flange 6. An interval L into which the index finger or the middle finger can be inserted is formed between the collar 117 and the injection port 114, and the length of the interval L is, for example, about 1.5 cm to 2 cm. Also,
The height of the collar 117 is such that the index finger and the middle finger along the outer peripheral surface of the main body 111 are caught (for example, about 1 cm to 2 cm).

At the central axis position of the shaft body 116, a wire insertion hole 118 through which the operation wire 2 penetrates straight is formed. An O-ring 119 that seals that portion is attached to the gap between the wire insertion hole 118 and the operation wire 2.

In use, the brush with a cover for an endoscope constructed as described above, as shown in FIG.
The index finger and the middle finger are hooked between 14 and the collar 117, and the thumb of the same hand is passed through the thumb rack 121 to move and operate, whereby the brush bristles 3 at the tip end are advanced and retracted via the operation wire 2, and one-handed operation is performed. The brush bristles 3 can be rubbed on the surface of the affected area or moved in and out of the tubular portion 4.

After use, by injecting the cleaning liquid from the inlet 114, the inside of the flexible tube 1 can be cleaned and disinfected over the entire length, and the operating portion 10 can be made extremely small.

[0020]

According to the present invention, it is possible to inject a liquid from the injection port projecting from the operation portion to easily wash and disinfect the inside of the tube, and to provide the index finger between the injection port and the collar. And the middle finger can be hooked, and the thumb of the same hand can be hooked on the thumb hook to operate it easily with one hand. Moreover, the operating portion can be made very small and compact, and maneuverability is also good.

[Brief description of the drawings]

FIG. 1 is a side view of a brush with a cover for an endoscope according to an embodiment of the present invention.

FIG. 2 is a partially enlarged side cross-sectional view of the endoscope cover brush according to the embodiment of the present invention.

FIG. 3 is a side view of an operation state of the endoscope cover brush according to the embodiment of the present invention.

FIG. 4 is a side view of a conventional brush with a cover for an endoscope.

FIG. 5 is a side view of a different conventional brush with a cover for an endoscope.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flexible tube 2 Operation wire 3 Brush bristles 4 Cylindrical part 10 Operation part 114 Injection port 117 Tsuba 121 Thumb rest

Claims (1)

[Claims] 1. An operation wire is arranged in an elongated tube so as to be able to advance and retreat in the axial direction, brush hairs are attached to the tip of the operation wire, and the operation wire is advanced and retracted in an operation portion provided on the proximal end side of the tube. In a brush with an endoscope cover in which the brush bristles are allowed to move in and out of a tubular portion formed at the distal end of the tube by operating, a fluid is injected into the tube in the operating portion. The injection port of is projected laterally, and a brim is projected behind the injection port with an interval allowing insertion of the index finger or the middle finger, and the thumb connected to the proximal end of the operation wire is A brush with a cover for an endoscope, wherein an insertable thumb rest is arranged behind the collar so as to be movable with respect to the collar.