JP3050750B2 - Simple endoscope device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Conventionally, a so-called simple type endoscope apparatus having a light emitting body for illumination in an operation section is generally provided with an illumination light supply unit including a miniature bulb and a dry battery in the operation section of the endoscope. It had an attached structure.

[0003]

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

However, the simple endoscope apparatus has a structure in which the illumination light supply unit is simply attached to the operation unit as described above. And cause mechanical failure. Therefore, sufficient washing and disinfection after use could not be performed.

Accordingly, an object of the present invention is to provide a simple endoscope apparatus which does not infiltrate into the interior even when immersed in a disinfecting solution and can perform sufficient washing and disinfection.

[0006]

In order to achieve the above object, a simplified endoscope apparatus according to the present invention comprises a light guide for illuminating an object, an incident end of the light guide being arranged on an operation section, and a light guide for the light guide. In a simple endoscope apparatus in which an illumination light supply unit for supplying illumination light to the guide is detachably provided to the operation unit, when the illumination light supply unit is attached to the operation unit, It is characterized by a watertight structure in which water does not enter the inside from the outside.

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

Further, the illumination light supply unit may be watertightly sealed by itself, and the operation unit may be watertightly sealed by itself. Furthermore, it is preferable that an attachment angle of the illumination light supply unit with respect to the operation unit is adjustable.

[0009]

An embodiment will be described with reference to the drawings. In FIG. 2, an operation section 2 is connected to a proximal end side of an insertion section 1 covered by a flexible tube.

The lower part of the operating part 2 is about three-quarters 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 diagonally forward. ing. A suction operation valve 6 for performing a suction operation through a forceps channel (not shown) inserted into the insertion section 1 is provided on the operation mechanism section 5 above the grip section 3 of the operation section 2, and a suction operation valve 6 for the insertion section 1. A bending operation lever 7 for remotely bending a bending portion (not shown) formed at the distal end portion is disposed on the front surface and the rear surface,
An eyepiece 8 protrudes from the upper surface.

A light guide fiber bundle 9 for illuminating a subject has an incident end located in the operating mechanism 5, passes through the insertion section 1 and the grip 3 of the operating section 2, and has an emission end. It is arranged at the tip of the insertion section 1.

Then, the light guide fiber bundle 9
Light supply unit 3 for supplying illumination light to
Numeral 0 is detachably attached to a side surface portion of the operation mechanism section 5.

FIG. 1 is an enlarged cross-sectional view showing a state in which the illumination light supply unit 30 has been removed from the operation unit 2.
A main body case 11 that covers the operation mechanism 5 of the operation unit 2
Is made of plastic. The bearing cylinder 12 and the suction operation valve 6 that support the bending operation lever 7 are inserted into through holes formed in the main body case 11, and are each sealed watertight there. The bearing cylinder 12 and the base of the suction operation valve 6 are fixed to a frame 13 in the operation section 2, respectively.

A cover 15 is fitted into a large side opening formed in the main body case 11, and an O-ring 16 for sealing is mounted on the fitting surface so that water does not enter the inside from a gap. Has become. In addition, although the O-ring 16 is crushed by being mounted, the figure shows a cross section of a natural state before being crushed (the same applies hereinafter).

A support cylinder 17 whose base is fixed to the frame 13 in the operation section 2 is arranged at the center 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 the light guide mounting tube 18 protrudes outward, and an incident end of the light guide fiber bundle 9 is screwed and fixed to a center axis position of the light guide mounting tube 18.

On the protruding end side of the light guide mounting tube 18,
A cylindrical lens mounting tube 19 in which a concave-convex lens 20 is water-tightly joined to a tip portion is covered with a cap and screwed and fixed, so that the concave-convex lens 20 is attached to the incident end face of the light guide fiber bundle 9. It is positioned at a position facing closely.

An O-ring receiving frame 22, which is arranged so as to surround the connecting portion between the support tube 17 and the light guide mounting tube 18, is fitted on the outer surface with a hole in the center of the lid 15,
The inner surface is fitted with the outer surface of the lens mounting tube 19,
O-rings 24 and 25 for sealing are mounted on the fitting portions, respectively, so that water does not enter the inside from gaps.

In this manner, the operation section 2 is constructed in a watertight structure in which water does not enter from outside in all parts. Needless to say, the insertion portion 1 is similarly formed in a watertight structure. Therefore, even if the endoscope without the illumination light supply unit 30 alone is immersed in a disinfecting solution or the like, there is no danger of flooding.

Further, a connecting cylinder 23 disposed so as to surround a portion extending from the lens mounting cylinder 19 to the O-ring receiving frame 22.
The base portion is screwed and fixed to the inner surface of the hole of the lid 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 is formed as a tapered surface that becomes gradually thinner. O-ring 2 for sealing in the middle of the tapered surface
6 is mounted.

The illumination light supply unit 30 has an L
The main body case 31 is made of a plastic. The light source lamp 32 is mounted on the lamp socket 33 at the bent portion.

The light source lamp 32 is disposed on the axis of the short tube of the L-shape, and the 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 a lamp socket 33 so as to surround the light source lamp 32.

Behind the lamp socket 33, an opening is formed in the main body case 31, and a bottom cover 35 is provided near the opening.
Are detachably screwed. Bottom lid 35 and body case 31
An O-ring 36 for sealing is mounted on the fitting surface with, so that water does not enter the inside from the gap. A compression coil spring 37 is interposed between the bottom cover 35 and the lamp socket 33, and elastically fixes the lamp socket 33 and the reflecting mirror.

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

A plastic battery case cover 39 is detachably screwed into an end opening of the battery accommodating portion of the main body case 31, and an O-ring 40 for sealing is mounted on a boundary surface between them. And water is prevented from entering the inside from the gap. Battery case cover 39 is attached to main body case 31
, The battery 38 can be replaced.

Reference numerals 41 and 42 denote a negative electrode disposed in the battery case cover 39 and the main body case 31, and 43 denotes a positive electrode disposed in the main case 31.
3 is connected to the light source lamp 32.

In the middle of the wiring, a light source lamp 32 is provided.
A switch for turning on and off the power supply to the power supply is provided, but is not shown. The switch portion is also sealed watertight so that water does not enter the inside from the outside.

A connection cylinder receiving cylinder 46 having a tapered opening having a shape to be engaged with a tapered surface of the connection cylinder 23 provided in the operation section 2 is provided at an end opening on the short cylinder side of the main body case 31.
Are fixed by tightening nuts 47 from the inside.

Then, the connection cylinder receiving cylinder 46 and the main body case 3
An O-ring 48 for sealing is mounted on the mating surface with the first tube 1 so that water does not enter the inside through a gap. Transparent plate 49 is joined in a watertight manner.

As described above, the illumination light supply unit 30
Is constructed in a watertight structure in which water does not enter from outside in all parts. Therefore, even if only the illumination light supply unit 30 that is not attached to the operation unit 2 is immersed in a disinfecting solution or the like, there is no danger of flooding.

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

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

At this time, since the O-ring 26 mounted on the tapered surface of the connection tube 23 is crushed by the connection tube receiving tube 46, water does not enter the connection portion from the outside. Therefore, even if the illumination light supply unit 30 is immersed in a disinfecting solution or the like in a state where the illumination light supply unit 30 is attached to the operation unit 2, there is no possibility of a flood accident.

When the illumination light supply unit 30 is attached to the operation unit 2 as described above, 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 focused on the incident end face of the light guide fiber bundle 9 and is incident on the light guide fiber bundle 9.

Since the connection cylinder 23 and the connection cylinder receiving cylinder 46 are in close contact with each other with a tapered surface, the tightening wheel 50 is tightened tightly with respect to the connection cylinder 23 to thereby provide the illumination light supply unit 3.
0 is fixed to the operation unit 2 so as not to move at all.

However, if the tightening of the tightening wheel 50 is slightly loosened, the illumination light supply unit 30 can be freely rotated around the optical axis of the illumination light. Therefore,
The mounting angle of the illumination light supply unit 30 with respect to the operation unit 2 indicated by θ in FIG. can do.

[0036]

According to the present invention, when the illumination light supply unit is attached to the operation unit, the illumination light supply unit is configured to have a watertight structure in which water does not enter the inside from the outside. By immersing in a disinfecting solution or the like while being attached to the, it is possible to perform complete cleaning and disinfection without fear of flooding.

In addition, if the illumination light supply unit and the operation unit of the endoscope are each independently configured to be watertight, each of them can be immersed alone in a disinfecting solution or the like to perform sufficient washing and disinfection without danger of inundation. it can.

[0038] Further, since the mounting angle of the illumination light supply unit with respect to the operation unit can be adjusted, the illumination light supply unit can be arbitrarily set at a position where the user can use it most easily. The performance is improved.

[Brief description of the drawings]

FIG. 1 is an enlarged cross-sectional plan 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 illustrating 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 cross-sectional plan view showing a state in which an illumination light supply unit is attached to an operation unit according to the embodiment of the present invention.

[Explanation of symbols]

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

Claims (5)

(57) [Claims] 1. A entering end of the light guide for illuminating the object is arranged in the operation unit, detachably illuminating light supply unit for supplying illumination light to the light guide with respect to the operating unit And the illumination light supply unit.
When the knit is attached to the operation unit,
A simple endoscope apparatus having a watertight structure in which water does not enter inside from above, wherein an angle of attachment of the illumination light supply unit to the operation unit is variable. 2. An illumination light supply unit for emitting illumination light to be supplied to the light guide,
2. The simplified endoscope apparatus according to claim 1, further comprising a battery for supplying lighting energy to the light source lamp. 3. The simple endoscope apparatus according to claim 1, wherein the illumination light supply unit is rotatable and fixed at a position keeping a certain distance from the operation unit. 4. The simplified endoscope apparatus according to claim 1, wherein the illumination light supply unit is sealed watertight by itself. 5. A simplified endoscope apparatus according to claim 1, wherein said operating section is sealed watertight by itself.