JP3670737B2 - Endoscope brush with cover - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a brush with a cover for an endoscope that is passed through a forceps channel of an endoscope and used for performing a scraping cytology.
[0002]
[Prior art]
FIG. 4 shows a conventional brush with a cover for an endoscope, and an operation wire 52 is inserted into an elongated flexible tube 51 so as to be movable forward and backward in the axial direction. The bristles 53 attached to the tip of the operation wire 52 are freely arranged in and out of the cylindrical portion 54 formed at the tip of the flexible tube 51.
[0003]
A knob 55 is connected to the base end of the flexible tube 51, and the brush 55 is picked up by a fingertip, and a finger hook 56 connected to the base end of the operation wire 52 is moved forward and backward. The hair 53 can be rubbed against the surface of the affected part or can enter and exit the cylindrical part 54.
[0004]
However, in the brush with an endoscope cover as described above, since the finger hook 56 cannot be operated with the hand of the knob 55, both hands are required for the operation, which is very inconvenient. There are many cases.
[0005]
Therefore, as shown in FIG. 5, an operation unit 60 having a slider wheel 61 slidable in the advancing and retreating direction of the operation wire 52 is connected to the base end of the flexible tube 51. Reference numeral 62 denotes a tube fixing ring for fixing the flexible tube 51 to the operation unit 60, and 63 denotes a wire fixing ring for fixing the operation wire 52 to the slider wheel 61.
[0006]
In the case of such a brush with a cover for an endoscope, an operation wire is obtained by moving the index finger and the middle finger of the same hand to the slider ring 61 by moving the thumb through the thumb hook 64 provided on the main body of the operation unit 60. The bristles 53 at the tip can be advanced and retracted via 52.
[0007]
[Problems to be solved by the invention]
Not only the endoscope apparatus body but also various treatment tools are required to be able to 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 in the flexible tube 51.
[0008]
However, in the conventional brush with a cover for an endoscope as shown in FIG. 5, the operation part is originally very large, so if a cleaning liquid inlet is provided in this operation part, the operation part will be The size will increase and the operability will be significantly degraded.
[0009]
Therefore, an object of the present invention is to provide a brush with an endoscope cover that has a cleaning liquid inlet for cleaning the inside of a tube and that can be easily operated with one hand.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the endoscope-covered brush according to the present invention has an operation wire disposed in an elongated tube so as to be movable back and forth in the axial direction, and a brush hair is attached to the tip of the operation wire. In the brush with an endoscope cover in which the brush hair enters and exits into a cylindrical portion formed at the distal end of the tube by moving the operation wire forward and backward in the operation portion provided on the base end side, The operation part is provided with an inlet for injecting fluid into the tube sideways, and a hook is provided behind the inlet so that an index finger or middle finger can be inserted. In addition, a thumb hook connected to the base end of the operation wire and capable of inserting a thumb is disposed behind the collar so as to be movable with respect to the collar.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a brush with an endoscope cover according to an embodiment of the present invention. For example, an operation wire 2 is inserted into an elongate flexible tube 1 made of tetrafluoroethylene resin so as to be movable forward and backward in the axial direction. Has been. A bristle 3 is attached to the distal end of the operation wire 2 so that it can freely enter and exit from the front into a cylindrical portion 4 formed at the distal end of the flexible tube 1.
[0012]
An operation unit 10 is provided on the proximal end side of the flexible tube 1. The operation unit 10 includes a fixed unit 11 connected to the base end of the flexible tube 1 and a movable unit 12 connected to the base end of the operation wire 2 behind the operation unit 10. A thumb rest 121 into which a thumb can be inserted is attached to the movable portion 12 so as to be rotatable about the axis of the operation wire 2.
[0013]
FIG. 2 is an enlarged view of the fixing portion 11, and the base end of the flexible tube 1 is pressed and fixed to the main body 111 by a holding nut 112 screwed to the front end side of the main body 111.
[0014]
A wire insertion hole 113 through which the operation wire 2 penetrates straight is formed through the main body 111. An inlet 114 for injecting a liquid such as a cleaning liquid into the wire insertion hole 113 is provided so as to protrude from the main body 111 to the side.
[0015]
The injection port 114 has the same shape as a so-called luer lock type injection needle cap, and has a height (for example, about 1 cm to 2 cm) to which the index finger or middle finger along the outer peripheral surface of the main body 111 is caught. It protrudes at a right angle and communicates in a T shape with the wire insertion hole 113 inside the main body 111.
[0016]
A flange 116 is formed on the shaft 116 screwed to the rear end side of the main body 111. A space L between 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 space L is, for example, about 1.5 cm to 2 cm. Further, the height of the ridge 117 is a height (for example, about 1 cm to 2 cm) to which the index finger and the middle finger along the outer peripheral surface of the main body 111 are caught.
[0017]
A wire insertion hole 118 through which the operation wire 2 penetrates straight is formed at the center axis position of the shaft body 116. An O-ring 119 that seals the portion is mounted in the gap between the wire insertion hole 118 and the operation wire 2.
[0018]
As shown in FIG. 3, the brush with a cover for an endoscope configured in this way is used to hook the index finger and the middle finger between the inlet 114 and the collar 117, and the thumb of the same hand as the thumb holder 121. By moving through the wire, the brush bristles 3 at the tip can be advanced and retracted via the operation wire 2, and the brush bristles 3 can be rubbed against the surface of the affected part or moved into and out of the cylindrical part 4 by one-hand operation.
[0019]
After use, by injecting the cleaning liquid from the injection port 114, the inside of the flexible tube 1 can be cleaned and disinfected over the entire length, and the operation unit 10 can be made very small.
[0020]
【The invention's effect】
According to the present invention, the inside of the tube can be easily cleaned and disinfected by injecting a liquid from the injection port protruding from the operation unit, and the index finger and the middle finger are hooked between the injection port portion and the bag, The thumb of the same hand can be hooked on the thumb and can be easily operated with one hand, and the operation part can be made very compact and compact, and the handling is good.
[Brief description of the drawings]
FIG. 1 is a side view of a brush with an endoscope cover according to an embodiment of the present invention.
FIG. 2 is a partially enlarged side cross-sectional view of a brush with an endoscope cover according to an embodiment of the present invention.
FIG. 3 is a side view of the operating state of the brush with an endoscope cover 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 bristle 4 Cylindrical part 10 Operation part 114 Inlet 117 鍔 121 Thumb hook

Claims (2)

By placing an operation wire in an elongated tube so as to be able to advance and retract in the axial direction, attaching a bristle to the distal end of the operation wire, and operating the operation wire forward and backward at an operation portion provided on the proximal end side of the tube, In the brush with an endoscope cover, in which the brush hair enters and exits into a cylindrical portion formed at the tip of the tube,
An inlet for injecting fluid into the tube protrudes laterally at the intermediate portion of the operation portion, and an interval between which an index finger or middle finger can be inserted is provided behind the inlet. And a thumb rest connected to the base end of the operation wire and capable of inserting a thumb is disposed at the rear end portion of the operation portion so as to be movable with respect to the collar. An endoscope characterized in that, at the front end portion of the operation portion, the proximal end portion of the tube is bent at a right angle in a direction extending outward and the portion is pressed and fixed to the operation portion in the axial direction by a holding nut. Brush with cover. The brush with an endoscope cover according to claim 1, wherein an O-ring for sealing that is in direct contact with the outer surface of the operation wire is disposed at a position between the inlet and the heel.

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