JPH0810220A - Simplified endoscope device - Google Patents

Abstract

PURPOSE:To provide a simplified endoscope device to the inside of which no water intrudes even when it is dipped in an antiseptic solution and capable of performing washing and disinfection sufficiently. CONSTITUTION:This simplified endoscope device in which the incident terminal part of a light guide 9 to illuminate an object is arranged in an operating part 2 and an illumination light supply unit 30 to supply illumination light to the light guide 9 is provided on the operating part 2 freely loadably/unloadably is formed in water-tight structure in which the water can be prevented from intruding from the outside to the inside when the illumination light supply unit 30 is mounted on the operating part 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simplified endoscope apparatus in which an illumination light supply unit for supplying illumination light to a light guide is detachably attached to an operating portion.

[0002]

2. Description of the Related Art In a so-called simple endoscope device in which a light emitting body for illumination is provided in an operating portion, conventionally, an illuminating light supply unit having a miniature bulb and a dry battery is generally provided in the operating portion of the endoscope. It had an attached structure.

[0003]

In order to eliminate the possibility of patient-to-patient infection through the endoscope, it is necessary that the endoscope be thoroughly cleaned and disinfected after use.

However, since the simple endoscope apparatus has a structure in which the illumination light supply unit is simply attached to the operating portion as described above, when it is submerged in the cleaning liquid, the liquid penetrates into the inside and the electrical And causes a mechanical failure. Therefore, it was not possible to perform sufficient cleaning and disinfection after use.

Therefore, an object of the present invention is to provide a simple endoscope device which can be sufficiently washed and disinfected without being flooded inside even when immersed in a disinfecting solution.

[0006]

In order to achieve the above object, the simplified endoscope apparatus of the present invention arranges an incident end portion of a light guide for illuminating a subject in an operating portion and also has the above-mentioned light. In a simple endoscope device in which an illumination light supply unit for supplying illumination light to a guide is detachably attached to the operation section, when the illumination light supply unit is attached to the operation section, It is characterized by a watertight structure that prevents water from entering from the outside to the inside.

The illumination light supply unit may include a light source lamp for emitting the illumination light to be supplied to the light guide and a battery for supplying lighting energy to the light source lamp.

The illumination light supply unit may be watertightly sealed by itself, or the operating portion may be watertightly sealed by itself. Further, it is preferable that the mounting angle of the illumination light supply unit with respect to the operation unit can be adjusted.

[0009]

Embodiments will be described with reference to the drawings. In FIG. 2, an operating portion 2 is connected to the proximal end side of the insertion portion 1 which is covered by a flexible tube.

The lower part of the operation part 2 of about three quarters is a grip part 3, and a forceps insertion part 4 is provided between the grip part 3 and the insertion part 1 so as to project obliquely forward. ing. A suction operation valve 6 for performing a suction operation through a forceps channel (not shown) inserted in the insertion section 1 is provided in the operation mechanism section 5 above the grip section 3 of the operation section 2, and the insertion section 1 of the insertion section 1. A bending operation lever 7 for remotely performing a bending operation on a bending portion (not shown) formed at the tip portion is arranged on the front surface and the rear surface,
The eyepiece 8 is provided on the upper surface.

The light guide fiber bundle 9 for illuminating an object has an incident end portion arranged in the operation mechanism portion 5, passes through the insertion portion 1 and the grip portion 3 of the operation portion 2, and the emission end portion. It is arranged at the tip of the insertion portion 1.

And, the light guide fiber bundle 9
Illumination light supply unit 3 for supplying illumination light to
0 is detachably attached to the side surface portion of the operation mechanism unit 5.

FIG. 1 is an enlarged cross-sectional view showing a state in which the illumination light supply unit 30 is removed from the operation section 2.
Main body case 11 for covering the operation mechanism section 5 of the operation section 2
Is made of plastic. The bearing cylinder 12 that supports the bending operation lever 7 and the suction operation valve 6 are fitted into through holes formed in the main body case 11 and are watertightly sealed therein. The bearing tube 12 and the base of the suction operation valve 6 are fixed to the frame 13 in the operation section 2.

A lid 15 is fitted into a large side opening formed in the main body case 11, and an O-ring 16 for sealing is attached to the fitting surface to prevent water from entering the inside through a gap. Has become. Although the O-ring 16 is crushed by being attached, a cross section in a natural state before being crushed is shown in the drawing (hereinafter the same).

A support cylinder 17 whose base is fixed to the frame 13 in the operation portion 2 is arranged at the central axis position of the hole formed in the central portion of the lid 15. And the support cylinder 17
A light guide mounting tube 18 screwed to and protrudes outwardly, and an incident end portion of the light guide fiber bundle 9 is screwed and fixed to a central axis position of the light guide mounting tube 18.

On the protruding end side of the light guide mounting cylinder 18,
A cylindrical lens mounting tube 19 in which a concave-convex lens 20 is watertightly joined to the tip portion is capped and screwed and fixed, whereby the concave-convex lens 20 is attached to the incident end surface of the light guide fiber bundle 9. They are positioned in close proximity to each other.

An O-ring receiving frame 22 arranged around the connection between the support cylinder 17 and the light guide mounting cylinder 18 is fitted around a hole in the center of the lid 15 on the outer surface,
The inner surface is fitted with the outer surface of the lens mounting tube 19,
O-rings 24 and 25 for sealing are respectively attached to the fitting portions so that water does not enter the inside through the gap.

In this way, the operation part 2 is constructed in a watertight structure in which water does not enter from the outside in all parts. Of course, the insertion portion 1 is also formed in a watertight structure. Therefore, even if the endoscope is not attached with the illumination light supply unit 30 and is immersed in a disinfecting solution or the like, there is no risk of a water immersion accident.

Further, a connecting cylinder 23 is arranged so as to surround a portion extending from the lens mounting cylinder 19 to the O-ring receiving frame 22.
Has a base portion screwed and fixed to the inner surface of the hole of the lid body 15, a male screw 23a is screwed on the outer peripheral surface of the intermediate portion, and the outer peripheral surface on the front side thereof is formed into a taper surface which becomes gradually thinner. O-ring 2 for sealing is provided in the middle of the taper surface.
6 is mounted.

The illumination light supply unit 30 as a whole is L
It is formed in a V-shaped cylinder, and its body case 31 is made of plastic. The light source lamp 32 is attached to the lamp socket 33 and arranged at the curved portion.

The light source lamp 32 is arranged on the axis of the short tube of the L-shaped tube, and a reflecting mirror 34 for converging the illumination light emitted from the light source lamp 32 on the axis of the short tube is provided.
It is attached to the lamp socket 33 so as to surround the light source lamp 32.

At the rear of the lamp socket 33, a main body case 31 is formed with an opening, and a bottom cover 35 is formed at the opening opening.
Is detachably screwed. Bottom cover 35 and body case 31
An O-ring 36 for sealing is attached to the fitting surface of and so that water does not enter the inside through the gap. A compression coil spring 37 is interposed between the bottom cover 35 and the lamp socket 33 to elastically fix the lamp socket 33 and the reflecting mirror 34.

A battery 38 is housed inside the long cylinder side of the L-shaped main body case 31. As the battery 38, either a dry battery or a rechargeable CADNICA battery may be used.

A plastic battery case lid 39 is detachably screwed into the opening of the end of the battery accommodating portion of the main body case 31, and a sealing O-ring 40 is attached to the interface between the two. However, water does not enter inside through the gap. The battery case lid 39 is attached to the main body case 31.
The battery 38 can be replaced by removing the battery 38.

Reference numerals 41 and 42 denote negative electrode side electrodes arranged in the battery case lid 39 and the main body case 31, and reference numeral 43 denotes positive electrode side electrodes arranged in the main body case 31.
It is connected to the light source lamp 32 via 3.

A light source lamp 32 is provided in the middle of the wiring.
Although a switch for turning on and off the power supply to the switch is provided, its illustration is omitted. The switch portion is also watertightly sealed so that water does not enter inside from the outside.

A connecting tube receiving tube 46 having a tapered opening at the end opening on the short tube side of the main body case 31 that is engaged with the tapered surface of the connecting tube 23 provided in the operating section 2.
However, it is fixed by tightening the nut 47 from the inside.

Then, the connecting tube receiving tube 46 and the main body case 3
An O-ring 48 for sealing is attached to the mating surface with 1 to prevent water from entering the interior through the gap, and the inner end of the connecting tube receiving tube 46 has a parallel plane shape. Transparent plate 49 is watertightly joined.

In this way, the illumination light supply unit 30
Has a watertight structure that prevents water from entering from all parts. Therefore, even if only the illumination light supply unit 30 that is not attached to the operation unit 2 is immersed in the disinfecting solution or the like alone, there is no risk of a water immersion accident.

On the outer peripheral side of the connection tube receiving tube 46, a tightening ring 50 formed with a female screw 50a screwed to the male screw 23a of the connection tube 23 is attached so as not to come out in the axial direction.

Therefore, from the state shown in FIG. 1, the illumination light supply unit 30 is brought closer to the operating portion 2 side to bring the tapered surfaces of the connection tube 23 and the connection tube receiving tube 46 into close contact with each other, so that the female of the tightening ring 50 is closed. When the screw 50a is fastened to the male screw 23a of the connection cylinder 23, the illumination light supply unit 30 is connected to the operation section 2 as shown in FIG.

At this time, the O-ring 26 mounted on the tapered surface of the connecting tube 23 is crushed by the connecting tube receiving tube 46, so that water does not enter from the outside into the connecting portion. Therefore, even if the illumination light supply unit 30 is immersed in the disinfecting solution or the like while being attached to the operation unit 2, there is no risk of water inundation accident.

When the illumination light supply unit 30 is attached to the operation portion 2 in this way, the illumination light emitted from the light source lamp 32 is reflected by the reflecting mirror 34 and then passes through the transparent plate 49 and the concave-convex lens 20. Then, the light is converged on the incident end surface of the light guide fiber bundle 9 and is incident on the light guide fiber bundle 9.

Since the connection tube 23 and the connection tube receiving tube 46 are in close contact with each other by the tapered surface, the illumination light supply unit 3 is obtained by tightly tightening the tightening ring 50 on the connection tube 23.
0 is fixed so as not to move with respect to the operation unit 2.

However, if the tightening of the tightening wheel 50 is slightly loosened, the illumination light supply unit 30 can freely rotate about the optical axis of the illumination light. Therefore,
The illumination light supply unit 30 is set to the most convenient state by adjusting the mounting angle of the illumination light supply unit 30 with respect to the operation portion 2 indicated by θ in FIG. 2 and tightening the tightening ring 50 tightly in that state. can do.

[0036]

According to the present invention, when the illumination light supply unit is attached to the operating portion, the watertight structure prevents water from entering the inside from the outside. It can be completely cleaned and disinfected without damaging it by immersing it in a disinfectant solution etc.

Further, if the illumination light supply unit and the operation section of the endoscope are individually made watertight, each of them can be immersed in a disinfecting solution or the like to perform sufficient cleaning and disinfection without fear of water immersion. it can.

Further, since the mounting angle of the illumination light supply unit with respect to the operation portion can be adjusted, the illumination light supply unit can be arbitrarily set at the position most convenient for the user. The property is improved.

[Brief description of drawings]

FIG. 1 is an enlarged plan sectional view of a state in which an operation unit and an illumination light supply unit according to an embodiment of the present invention are separated.

FIG. 2 is a side view showing a state in which an illumination light supply unit is attached to the operation unit according to the embodiment of the present invention.

FIG. 3 is an enlarged plan cross-sectional view of a state where an illumination light supply unit is attached to the operation unit according to the embodiment of the present invention.

[Explanation of symbols]

 2 Operation part 9 Light guide fiber bundle 16, 24, 25, 26 O-ring 30 Illumination light supply unit 36, 40, 48 O-ring

Claims (5)

[Claims] 1. An incident end portion of a light guide for illuminating a subject is arranged on an operation portion, and an illumination light supply unit for supplying illumination light to the light guide is detachably attached to the operation portion. In the provided simple endoscope device, the simple endoscope characterized by having a watertight structure in which water does not enter from the outside when the illumination light supply unit is attached to the operation portion. apparatus. 2. A light source lamp for illuminating the illumination light supplied to the light guide by the illumination light supply unit,
The simplified endoscope apparatus according to claim 1, wherein the light source lamp has a built-in battery for supplying lighting energy. 3. The simplified endoscope apparatus according to claim 1, wherein the illumination light supply unit is watertightly sealed by itself. 4. The simplified endoscope apparatus according to claim 1, 2 or 3, wherein the operating portion is sealed by itself as a watertight seal. 5. The simplified endoscope apparatus according to claim 1, wherein the mounting angle of the illumination light supply unit with respect to the operation section is adjustable.