JPH1043133A - Endoscope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery light source type endoscope with which a battery light source can be surely disinfected/sterilized by immersion in a chemical solution, etc., and the danger of any functional faults such as leak or battery abnormality is eliminated. SOLUTION: Concerning a battery light source 3 built in the main body of endoscope for supplying illumination light to the incident end of a light guide fiber for guiding the illumination light, this battery light source is structured for covering a lamp house 5, to which a lamp 24 formed with an internal unit 6 is attached, and a battery unit 4, to which a battery is to be attached, connected to this lamp house 5 with an outer cover 9 composed of a lamp house 7 equipped with a connection mouthpiece 14 freely attachable and detachable to a light guide mouthpiece, to which the incident end is fixed, and a battery case 8 freely attachably and detachably connected with this lamp house 7, only the outer cover 9 can be disinfected by immersion in liquid medicines, etc., while detaching the internal unit, and structure not to generate leak or battery abnormality is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope using a small battery type light source.

[0002]

2. Description of the Related Art In general, a battery light source type endoscope is excellent in portability, and is used in a place where it is difficult to carry a large light source device, such as an emergency treatment or a treatment at a bedside. In particular, it has an excellent effect.

For example, in Japanese Patent Application No. 8-39939, a battery type light source (also referred to as a battery light source) using a dry battery as a power source and keeping the inside watertight by an O-ring is detachably attached to an operation unit. Endoscopes have been proposed.

Another conventional example is a battery light source 301 as disclosed in FIG. The battery light source 301 includes a battery light source main body 304 having a battery housing portion 302 and a lamp holder housing portion 303, a cover member 306 for covering the battery housing portion 302 with an O-ring 305 in a watertight manner, and the lamp holder housing portion 3
And a lamp holder 307 which can be attached to and detached from the lamp 03 and also functions as a lamp lighting switch.

[0005] The ramp holder 307 is provided with a slope portion 308 for attachment.
To the contact pin 309, and
03 to the battery light source main body 304.
The lamp holder 307 can be attached to the lamp holder.

A lamp removal lever 310 is provided on the side of the battery light source main body 304 in conjunction with the contact pin 309. By sliding the lamp removal lever 310 downward, the lamp holder 307 is attached to the battery holder 307. It becomes detachable from the light source body 304.

When the lamp holder 307 is attached to the battery light source main body 304, the O-ring 31
The watertightness of both is maintained from 1. That is, the inside and outside of the battery light source are completely kept watertight by the O-ring 305 and the O-ring 311.

Conventionally, simple disinfection and sterilization of endoscopes
As an easy method, a chemical solution is widely immersed. However, when these battery light sources are immersed in a chemical solution, a cover member is attached to the battery housing to prevent the liquid from adhering to the battery body or an electrical contact provided in the battery housing. Is installed in a watertight manner.

[0009]

However, in the above-mentioned battery light source, the O-ring of a part which is repeatedly opened and closed, such as a part which is opened and closed when the battery is replaced, is worn or damaged.
Or, there is a possibility that the watertightness cannot be maintained due to trash being caught.

In this state, when the battery light source is immersed in the chemical solution, the chemical solution penetrates into the inside thereof, and the liquid adheres to the main body of the dry battery to cause electric leakage, liquid leakage and gas generation, or the dry battery is previously removed from the battery light source. Even if it is removed, the liquid may adhere to the electrical contact part and the like, and there is a possibility that corrosion of the contact surface and formation of a thin film may cause functional damage such as defective contact.

Further, once the liquid has penetrated into the battery light source and adhered to the electric contacts having a complicated shape, it has been very difficult to remove the electric contacts.

(Object of the Invention) The present invention focuses on the above points, and separates a battery light source into an exterior cover and an internal unit including a battery, and immerses only the exterior cover in a chemical solution, thereby providing a battery light source. It is an object of the present invention to provide a battery light source type endoscope which can surely disinfect and sterilize the endoscope by a chemical solution immersion or the like and does not cause a functional failure such as an electric leakage or a battery abnormality.

[0013]

A light guide fiber for guiding illumination light, a lamp for supplying light to an incident end of the light guide fiber, and a power supply for lighting the lamp are provided in an operation unit. The endoscope includes an internal unit having at least a power supply and a power storage unit, and an external cover that covers the entire internal unit, and the external cover is detachable from an operation unit. When disinfecting the battery light source after the endoscope inspection is completed, take out the internal unit from the outer cover and immerse only the outer cover in a chemical solution, so that the battery light source can be surely disinfected and sterilized by immersion in a chemical solution, etc. There is no risk of functional failure such as

[0014]

Embodiments of the present invention will be specifically described below with reference to the drawings. (First Embodiment) FIGS. 1 to 8 relate to a first embodiment of the present invention, FIG. 1 shows an entire configuration of an endoscope according to the first embodiment, and FIG. FIG. 3 shows a structure of the battery type light source and the like, FIG. 4 shows a cross section taken along line EE of FIG. 3 (A), and FIG. FIG. 6 shows an explanatory diagram of an operation when the knob is rotated, FIG. 7 shows a connection state between the endoscope main body and the battery type light source, and FIG. 8 shows a state of the battery type light source. 3 shows a switch mechanism.

As shown in FIG. 1, an endoscope 1 according to the first embodiment is mainly divided into an illumination optical system for guiding illumination light and emitting the guided illumination light to a subject such as an affected part. Endoscope body 2 having observation optical system for observing the illuminated subject
And a battery-type light source (also referred to as a battery light source) 3 that is detachably attached to the operation unit 11 (more specifically, the light guide base 13) of the endoscope main body 2.

As shown in FIG. 2, the battery type light source 3 has a battery unit 4 containing a dry battery or a rechargeable battery as a power source, is detachably connected to the battery unit 4, and has a lamp 24 as a light source. An internal unit 6 comprising a lamp unit 5; and a connection base 1 which covers the lamp unit 5 and is detachable from the endoscope body 2.
A lamp house 7 having a battery unit 4
And an exterior cover 9 comprising a battery case 8 which is detachably connected to the lamp house 7 by screwing.

That is, the internal unit 6 composed of the battery unit 4 having a power supply and a power supply storage unit and the lamp unit 5 storing the light source is entirely a lamp house 7.
And an external cover 9 composed of a battery case 8.

The endoscope main body 2 shown in FIG. 1 has an elongated insertion portion 10 and an operation portion 11 formed at a rear end of the insertion portion 10.
An eyepiece section 12 formed at the rear end of the operation section 11;
The light guide base 13 protrudes from the operation unit 11, and a connection base 14 of the lamp house 7 can be detachably connected to an end of the light guide base 13.

The insertion section 10 has a hard distal end 15 formed at the distal end thereof, a bending section 16 formed at the rear end of the distal end section 15 and capable of bending, and an operating section 1 extending from the rear end of the bending section 16.
1 and a flexible portion 17 having flexibility formed up to the front end.

The operating portion 11 is provided with a grip portion 18 provided near the insertion portion 10 and gripped by an operator. A bending operation lever 19 is provided at a rear end side of the grip portion 18. By operating to rotate 19, the bending portion 16 can be bent. The operation unit 11 is provided with a suction button 20 for performing suction and a suction base 21 protruding from near the base end of the suction button 20. The suction base 21 is connected to a suction device via a tube (not shown). By operating the suction button 20, the body fluid or the like can be sucked through the suction mouthpiece 21 communicating with the suction channel.

A forceps insertion port 22 for inserting a treatment tool such as a forceps is formed at the front end side of the operation section 11, and the forceps insertion port 22 communicates with the suction channel inside. Usually, a forceps stopper 23 is attached to the forceps insertion port 22.

Further, on the back side of the forceps insertion port 22, a vent cap 51 is projected, and air can be sent from the vent cap 51 to the inside of the endoscope main body 2. Inspection for leakage can be performed. A light guide fiber 25 for guiding (transmitting) illumination light is inserted into the insertion section 10.
5 is bent in the operation part 11 and its rear end is fixed in the light guide base 13 (see FIGS. 3 and 7).

By connecting the connection base 14 of the battery type light source 3 to the light guide base 13 as shown by the arrow in FIG. 1, the connection state shown in FIG. 7 can be set.
When the lamp 24 mounted inside the lamp house 7 emits light, the illumination light from the lamp 24 is applied to the light incident end face 2 of the light guide fiber 25 of the light guide base 13.
6. The supplied illumination light is guided by the light guide fiber 25, and is emitted forward from a distal end surface fixed to the illumination window of the distal end portion 15 of the insertion section 10, that is, a light emitting end surface, and illuminates a subject such as an affected part.

The illuminated object forms an optical image at an image forming position by an objective lens attached to an observation window adjacent to the illumination window. The distal end face of the image guide fiber is arranged at this image forming position, and transmits the formed optical image to the end face on the eyepiece section 12 side. The transmitted optical image can be magnified and observed through an eyepiece attached to an eyepiece window of the eyepiece 12.

FIG. 3A shows a detailed configuration of the light guide base 13 to which the battery type light source 3 is connected. FIG.
FIG. 3B is a cross-sectional view taken along the line BB in FIG.
3A is a cross-sectional view taken along line CC of FIG. 3A, and FIG.
3 (E) is a sectional view of the connection base 14 of FIG. 3 (A).
Are developed in the circumferential direction to show the grooves. FIG.
The connection base 14 in FIG. 3A is shown by a cross section taken along the line AA in FIG.

The base end of the light guide rod 27 is fixed to a base fixing member 11a provided on the operation section 11 with a screw. The distal end of the light guide rod 27 is made thicker so that the light guide fiber 2 inserted from the proximal end is
5 is fixed with screws.

A cover glass 28 is provided at an end of a light guide rod 27 projecting from the side of the operation unit 11 in a watertight manner.
Are fixed in a watertight manner. A screw portion 29 for attaching a light guide cable that can be connected to an existing light source (not shown) is provided at a position of the light guide rod 27 closer to the operation unit 11 from the cover glass 28. Further, a fixing pin 30 for connecting and fixing the battery type light source 3 is screwed to a position on the light guide rod 27 closer to the operation unit 11 than the screw part 29.

A heat-insulating cover 31 made of a material having heat insulating properties in the axial direction is provided coaxially on the outer peripheral surface of the light guide rod 27 except for the vicinity of the end. The heat-insulating cover 31 has one end serving as a base end side fixed to the operation unit 11 and the other end extending to a portion where the fixing pin 30 is hidden, so that the position of the hidden fixing pin 30 can be confirmed. An indicator 32a is provided at an upper portion (outside position) of the indicator 30.

Light guide rod 27 and heat shield 31
A spring 33 having elasticity and a washer 34 urged toward the end face of the light guide rod by the spring 33 are provided in a space provided between the springs 33. The washer 34 is a heat insulating cover 3
The slide restricting convex portion 35 provided on the inner surface of the lens 1 prevents it from jumping out of the space. Also, light guide lot 27
In the middle part, a constricted part 36 formed by cutting off the outer peripheral part is formed, so that the space with the heat-insulating cover 31 is made wider.

Further, this space corresponds to the light guide lot 2
7 (see FIG. 3 (C)) and slits 37 provided at three places around the heat-insulating cover 31.
(See FIG. 3 (D)) so that the light guide rod 13 is always in communication with the outside air and easily dissipates the heat of the light guide rod 27 to the outside air.

On the other hand, FIGS. 3, 4, 5, 6, 7, and 8 show the detailed structure of the battery-type light source 3. FIG. The lamp unit main body 39 constituting the lamp unit 5 shown in FIG. 3A is formed of an insulating member that can sufficiently withstand the heat generated from the lamp 24.

On the bottom surface or the back surface of the lamp unit body 39 (the battery unit 4 side), a pair (+ pole and
The (pole) snap joint 40a sandwiches the lamp unit base 41 made of the same material as the lamp unit main body 39, and one is connected to the conductive plate 42 embedded in the lamp unit base 41 (see FIGS. 4 and 8), and the other is. Is fixed to a lamp base 43 fitted in the lamp unit main body 39 with a conductive screw.

One end of the conductive plate 42 has a leaf spring switch 44 made of a conductive member having elasticity for turning on and off the lamp 24, which is sandwiched between the lamp unit body 39 and the conductive plate 42. Unit body 3
9 is screwed. That is, one of the snap joints 40 a is in a state of being electrically connected to the leaf spring switch 44.

The leaf spring switch 44 is fixed at an acute angle θ to the lamp unit base 41 as shown in FIG. 8, and the lamp unit body 39 is cut off at an acute angle θ so as to match the angle. Further, the leaf spring switch 4
A cam mounting groove 45 into which a cam 58 for pressing the cam 4 is dropped from above is provided.

A lamp 24 such as a halogen lamp, a xenon lamp, a vacuum lamp, or an LED is fixed to the lamp base 43, which is electrically connected to the snap joint 40a, in a replaceable manner by screwing a base end thereof. The lamp base 43 and one of the electrical contacts of the lamp 24 are also electrically connected.

Further, a screw is fixed to the lamp unit main body 39 which is electrically insulated from the lamp base 43 so that the contact plate 46 contacts the other electric contact of the lamp 24. That is, one of the snap joints 40 a is in an electrically conductive state with respect to the contact plate 46. The length of the arm of the contact plate 46 and the leaf spring switch 44 is determined so that one end of the contact plate 46 and the leaf spring switch 44 can come into contact with each other.

On the optical axis of the lamp 24, a condenser lens 47 for condensing the emitted light on the light incident end face 26 of the endoscope main body 2 is provided. The condenser lens 47 is detachably fixed to the lamp unit main body 39 by screwing so as to cover the lamp 24. That is, the lens frame 48 holds the condenser lens 47 at the front position of the lamp 24. The lens frame 48 has a substantially cylindrical shape, and a screw portion formed by screwing to the lamp unit main body 39 is formed on the outer periphery of the base end thereof. And a screw portion to be screwed with the screw portion.

The end of the lens frame 48 on the lens side (more precisely, the lens fixing frame 48a) is connected to the lamp unit base 41.
It is designed not to protrude more in the circumferential direction. The inner diameter of the lens-side end portion (more precisely, the lens fixing frame 48a) is set to a size into which the end portion of the light guide base 13 can be fitted.

As shown in FIG. 4, the lamp unit main body 39 and the lamp unit base 41 are provided with three flat portions as shown in FIG. It is positioned and fitted. When the lamp unit 5 is fitted so as to be covered by the lamp house 7, the optical axes of the lamp 24 and the condenser lens 47 are connected to the connection base 1 as shown in FIG.
The positioning fitting portion is formed so as to face in the direction of the center axis of 4 (in other words, the direction of the connection portion with the light guide base 13 provided on the operation portion 11 of the endoscope main body 2).

The battery unit 4 includes, for example, a battery box 49 capable of storing four dry batteries and a battery box 4.
9 and a pair of snap joints 40b electrically connected to the conductive metal fittings, and provided on the lower surface of the battery box 49. And a pressing spring 50.

The lamp unit 5 and the battery unit 4 are detachably fitted by the above-mentioned pair of (+ and-pole) snap joints 40a and 40b, and are in an electrically conductive state. A connection base 14 that can be connected to the light guide base 13 extends from the lamp house 7, and the lamp house 7 is inserted into a rigid plate 52 that is fitted into a recess on the upper surface of the lamp house 7. It is fixed with screws.

FIG. 2 or FIG.
As shown in (E), there is provided a cam groove 53 which is open at the end and is provided in a circumferential direction of about 90 °, and into which the fixing pin 30 on the side of the light guide base 13 is engaged. An index 32b indicating the end portion 53a is provided at a position adjacent to the end portion 53a.

The portion of the connection base 14 fitted into the lamp house 7 is cut out in the lower half except for the upper half fixed to the plate 52 by screws. At the time of exterior, lens frame 4
8 can be positioned concentrically without hitting the connection base 14.

Further, in addition to the cam groove 53,
As shown in FIG. 3B, a large number of outside air communication ports 54 are provided, and even when the connection base 14 is connected to the light guide base 13, the outside air comes into contact with a part of the end of the light guide base 13. I have. A large number of concave grooves 55 are provided on the same circumference as the outside air communication port 54.

The lamp house 7 is provided with a power switch 56 as shown in FIGS. As shown in FIG. 4, the power switch 56 has a rotary shaft 59 passing through a hole of the lamp house 7, and a knob 60 is fixed to a portion protruding outside the lamp house 7 with a screw.

An O-ring 57 is provided on the outer circumferential groove of the rotating shaft 59.
Are arranged, and can be rotated in a watertight manner with respect to the inner wall of the hole of the lamp house 7 around the lamp housing. Lamp house 7
A cam 58 is integrally formed at an end of a rotating shaft 59 inside the cam shaft.
Can be rotated. The knob 60, the rotating shaft 59, and the cam 58 are formed of a non-conductive member.

The cam 58 is dropped into the cam mounting groove 45 of the lamp unit main body 39 when the lamp house 5 is externally mounted on the lamp unit 5, and is arranged on the upper surface of the leaf spring switch 44 as shown in FIG. It has become.

FIGS. 5 and 6 show a switch rotation restricting structure provided on a knob portion 60 forming a switch operating portion of the power switch 56. FIG. 5A shows a cross section taken along line FF of FIG. 4, FIG. 5B shows a cross section taken along line F'-F 'of FIG. 4, and FIG. 5C shows a cross section taken along line H-F of FIG. FIG. 6 shows a cross section taken along line H.
(A) and (B) are explanatory views of the operation of switch rotation restriction when the knob 60 is rotated. As shown in FIG. 5A, a C-ring-shaped groove is provided on the back surface of the knob portion 60 in the circumferential direction, and the C-ring-shaped rotation restricting spring 61 is provided so as to fit into the C-ring groove. Direction) is fixed with screws. The rotation restricting spring 61 is formed by rounding the end of a C-ring plate spring into a semicircle, and bending away from the rear surface of the knob 60 as shown in FIG. 5C.

The C-ring shape of the rotation restricting spring 61 at this time is formed by cutting a leaf spring at an angle of about 270 °. The power switch 56 is turned into a lamp house 7 by forming a spring shape as shown in FIGS.
When the power supply switch 56 is mounted on the lamp housing, a slight gap is provided between the knob portion 60 and the lamp house 7 so that the power switch 56 can be rotated with a somewhat small amount of force. , And smoothly rotate. The rotation restricting spring 61 may be formed of a member having no conductivity.

Further, a circular recess 62 having a curvature slightly larger than the semicircular shape of the spring end 61a is formed on the sliding surface of the lamp house 7 on which the knob 60 rotates. And on the same radius having the same central axis as the rotation restricting spring 61 (the same position as the radius of the rotation restricting spring 61).
(See FIG. 5B).

Accordingly, when the knob 60 is rotated, the spring end 61a pressing the sliding surface on the lamp house 7
Is dropped into the circular concave portion 62, a click feeling is generated and rotation in the same direction is restricted.

Next, when the knob 60 of the power switch 56 is turned in the opposite direction, the spring end 61a that has fallen into the circular recess 62 rises from the circular recess 62 to its original position and starts rotating. As the rotation continues, the other spring end 61a falls into the circular concave portion 62, and has the same effect as described above. The rotation range at this time is restricted to approximately 90 °.

This situation is shown in FIGS. 6A and 6B. FIG. 6A shows a state in which the rotation restricting spring 61 does not fall into the circular concave portion 62. When the knob 60 is rotated from this state, the rotation restricting spring 61 becomes circular as shown in FIG. It will be in a state of dropping into the recess 62.

The lamp house 7 has a screw portion formed on the inner peripheral surface of the opening at the lower end thereof for screwing with the screw portion 8a at the upper end of the battery case 8, and has an internal shape extending from the screw portion to the ceiling. Has an irregular shape having a flat portion fitted with the lamp unit 5 as described above.

The external appearance of the lamp house 7 is substantially columnar like the battery case 8. The battery case 8 has a cylindrical body with a bottom for housing the battery unit 4 therein, and a screw portion 8a screwed with the lamp house 7 and a lamp housing 7 in an opening at the upper end thereof. 8 such as an O-ring for sealing the threaded portion
b. The inside of the battery case 8 is large enough to allow the battery unit 4 to rotate freely within the battery case 8.

As described above, the main feature of this embodiment is that the lamp unit 7 and the battery case 8 constituting the outer cover 9 cover the entire internal unit 6. The outer cover 9 is made of a material that can sufficiently withstand various disinfecting and sterilizing means such as various chemicals, ethylene oxide gas, and autoclave.

Next, the operation of the present embodiment will be described. When an inspection is performed using the endoscope 1 of the present embodiment, first, dry batteries are loaded in the battery box 49, and then the battery unit 4 is connected to the lamp unit 5 by the snap joints 40a, 4b.
0b. With this operation, the lamp unit 5
Among them, the electrical conduction of both electrodes is completed to the leaf spring switch 44 for turning on / off the lamp and the contact plate 46.

Subsequently, the internal unit 6 is stored in the outer cover 9. At this time, first, the lamp unit 5 is uniquely positioned and fitted into the lamp house 7. That is, after the optical axis direction of the lamp 24 provided in the lamp unit, the connection base 14 of the lamp house 7, the cam mounting groove 45 of the lamp unit 5 and the cam 58 of the lamp house 7 are respectively positioned, the lamp house 7 is removed. The screwing to the battery case 8 starts.

Since the lamp house 7 is screwed into the battery case with the internal unit 6 fitted in the lamp house 7, the battery unit 4 rotates with respect to the battery case 8 inside the battery case 8. Since the protrusion of the pressing spring 50 provided at the lower part of the battery unit 4 contacts the center of the bottom of the battery case 8 at a point, no large resistance is generated at this part.

When the screwing is completed, the pressing spring 5
Since the internal unit 6 is always kept in contact with the ceiling portion of the outer cover 9 by the urging force of 0, the internal unit 6
Does not rattle against the exterior cover 9 and the ceiling of the lamp house 7 and the upper surface of the lamp unit 5 can be used as reference planes, so that the vertical displacement between the lamp 24 and the connection base 14 can be minimized. It is possible to design in a compact manner.

Next, the battery type light source 3 is connected to the light guide base 13 of the endoscope main body 2. The connection is established when the opening of the cam groove 53 of the connection base 14 of the battery type light source 3 is positioned on the fixing pin 30 of the light guide base 13 and is pushed in and rotated until the fixing pin 30 comes to the terminal end 53 a of the cam groove 53. The base 14 is inserted into the gap between the light guide lot 27 and the heat-insulating cover 31 and the light guide base 1
The connection base 14 is urged in a direction away from the endoscope main body 2 (or the operation unit 11) by the urging force of the elastic spring 33 in 3, and the fixing pin 30 is securely locked to the terminal end 53 a of the cam groove 53. The battery-type light source 3 is mounted on the endoscope main body 2 without rattling. This state is shown in FIG.

At this time, the light guide base 13
Of the battery type light source 3 and the outer cover 9 are fitted into the lens frame 48 of the lamp unit 5.
Even if there is some backlash between them and the optical axis of the lamp unit 5 and the central axis of the connection base 14 are slightly shifted, the light guide base 13 is corrected when inserted into the connection base 14, and is corrected by the condenser lens 47. The collected light can be reliably collected on the light incident end face 26 of the light guide fiber 25 on the endoscope main body 2 side.

Next, the power switch 56 is turned on and off.
To rotate the cam 58 within a prescribed angle. The shape of the cam 58 is as shown in FIG.
When the position is indicated by F, the leaf spring switch 44 is in a state before elastic deformation, and when the knob 60 is in the ON position, the cam 58 is
Presses the leaf spring switch 44 and the leaf spring switch end contacts the contact plate 46. Since the knob 60 is click-fixed at each of the ON / OFF positions, the cam 58 similarly retains the state before and after pressing the leaf spring switch 44.

When the leaf spring switch 44 comes into contact with the contact plate 46, a current is supplied to the lamp 24, the lamp 24 is turned on, and the light condensed by the condenser lens 47 is transmitted to the endoscope main body 2.
From the light incident end face 26 via the light guide fiber 25 and from the light emitting end face (or further through the illumination lens)
It is emitted forward and illuminates a subject such as an affected part.

When the lamp is turned on, the heat generated from the lamp 24 is transmitted to the connection base 14 and the light guide rod 27. In order to increase the contact area with the atmosphere,
The heat transmitted to the vicinity of the end portion of the light guide rod 27 is efficiently released to the atmosphere by the large number of outside air communication ports 54 and the concave grooves 55 provided in the air passage.

Further, in the portion of the light guide base 13 that the operator touches when holding the endoscope main body 2, the light guide rod 27 is covered with a heat insulating cover 31 and provided between the light guide rod 27 and the heat insulating cover 31. The air layer increases the heat insulation effect and can prevent burns.
Further, since the space forming the air layer communicates with the atmosphere through the slits 37 and the grooves 38, no heat is trapped in that portion.

When the observation with the endoscope 1 is completed, the power switch 56 is turned off, the lamp 24 is turned off, and the battery type light source 3 is pushed into the endoscope body 2 to release the lock of the fixing pin 30 and fix it. Pin 30 is cam groove 5
The battery-type light source 3 is rotated along the line 3 and is removed from the endoscope main body 2.

Subsequently, when disinfecting and sterilizing the battery type light source 3 by various methods, the internal unit 6 is taken out, and only the outer cover 9 is disinfected and sterilized by various chemicals, ethylene oxide gas, autoclave or the like. Since the entire inner unit 6 is covered with the outer cover 9, it is not contaminated, and there is no need for disinfection and sterilization.

The endoscope body 2 can be immersed in various chemicals for a watertight structure. When sterilizing with ethylene oxide gas, an air communication base (not shown) is connected to the air base 51.

This embodiment has the following effects. The heat generated from the lamp 24 can be efficiently released to the atmosphere, and the heat-generating portion that may touch the operator has a heat-insulating structure, so that a high-brightness lamp with a large amount of heat can be used without any problem.

The connection between the endoscope main body 2 and the battery type light source 3 is made by the fixing pin 30 and the cam groove 53 (bayonet type), so that quick and reliable attachment / detachment becomes possible. Even if this occurs, it can be easily and reliably replaced with the spare battery-type light source 3.

The entire internal unit 6 including the conductive portion, the electrical contacts, the lamp 24 and the dry battery is covered with the outer cover 9, and only the contaminated outer cover 9 is disinfected and sterilized, thereby causing a problem in the conventional product. “Functional impairment due to liquid infiltration when immersed in chemicals” (eg, leakage of chemicals into dry batteries, leakage of liquids, generation of gas, etc. (Electrical contact failure due to corrosion of thin film, formation of thin film, etc.) can be eliminated.

Further, the switch portion of the outer cover 9 serves only to press the leaf spring switch provided in the internal unit 6, and has no electrical conduction portion. Even if the state changes, it has no effect on the function.

Thus, only the contaminated portion can be surely disinfected and sterilized without causing a functional failure. still,
The present embodiment is not limited to the above embodiment, but can be variously modified.

For example, instead of the power switch 56, FIG.
A commercially available push switch 63 shown in FIG. In this case, the internal unit 6 is provided with the push switch 63 and an LED 64 for indicating ON / OFF of the push switch 63, and the outer cover 9 has an elastic cover member having elasticity as a switch operation unit for pushing the push switch 63; Specifically, a rubber cover 65 and a transparent window 66 for checking the LED 64 are provided.

A commercially available seesaw switch 67 as shown in FIG. 10 may be used. In this case, the internal unit 6
Is provided with a seesaw switch 67, and a rubber cover 68 for pressing the seesaw switch 67 is provided on the exterior cover 9.
Is provided. Even in these structures, since the exterior cover 9 does not have an electrically conductive portion, there is no fear of leakage, corrosion of the contact, and the like.

(Second Embodiment) Next, a second embodiment of the present invention will be described.
An embodiment will be described. 11 to 13 relate to a second embodiment of the present invention, FIG. 11 is a perspective view of a battery light source in the present embodiment, FIG. 12 is a sectional view showing the structure of the battery light source, and FIG. 1 shows an endoscope in a form and an endoscope hanger on which the endoscope is hung (or held) and provided with a charging means.

In the first embodiment, the exterior cover 9 covers the entire internal unit 6. In the present embodiment, however, an opening for mounting and dismounting the internal unit 103 is provided at the lower portion (bottom) of the exterior cover 102. In this structure, the bottom of the internal unit 103 is exposed from the exterior cover 102.
As shown in FIG. 12, the battery light source 101 is roughly divided into an outer cover 102 and an inner unit 103.

The exterior cover 102 includes an exterior cover body 105 having a plurality of, specifically, two lamps 104a and 104b built therein, an upper cover 106 screwed above the exterior cover body 105, It comprises a lower cover 107 screwed below the outer cover body 105 and a switch 108 rotatably attached to the upper cover 106.

The outer cover body 105 has a cylindrical shape closed at a position slightly above the lower end with a disk (hereinafter referred to as a bottom plate for convenience), and has two lamps 104a and 104b therein.
Built-in. A screw portion is formed at the upper end of the outer cover body 105, and the upper cover 10 has a cylindrical lid shape.
6 is attached by screwing. The switch 108 is attached so as to be in contact with the upper surface of the upper cover 106.
In addition, a cylindrical lower cover 107 having an open bottom surface is attached by screwing to a screw portion at the lower end of the outer cover body 105 to form the outer cover 102.

The outer cover body 105 and the upper cover 10
6 is an O-ring 109, which is used for the outer cover body 105.
The lower cover 107 is connected by an O-ring 110 and the upper cover 106 and the switch 108 are connected by an O-ring 111 in a watertight structure.

The switch 108 is provided with a cylindrical rotary shaft 112 projecting downward at the center thereof, and a cylindrical rotary shaft 113 made of a conductive member is provided at the lower end of the rotary shaft 112. It is coaxially fixed inside the cover body 105. The lower end of the rotating shaft 113 is fitted into a concave portion provided at the center position of the bottom plate of the outer cover body 105 and rotates with the turning operation of the switch 108.

Further, a disc-shaped rotary base 114 made of a non-conductive member near the lower end and having a hole in the center is fixed to the rotary shaft 113 coaxially, and rotates together with the rotary shaft 113. .

The rear end 115, which is the first contact of the lamps 104a and 104b, is always in contact with the rotating shaft 113, and is electrically connected to the first contact pin 117 via the first leaf spring 116. It is connected to the. The first leaf spring 1
Reference numeral 16 denotes a state in which a part is fixed to the exterior cover main body 105, and a part that is not fixed is always in contact with the rotating shaft body 113 by its own urging force. The first contact pin 117 penetrates the insulating bottom plate, and a protruding portion is exposed on the lower surface of the bottom plate, that is, on the inner surface of the storage portion of the internal unit 103.

The first contact pin 117 is fixed to the outer cover body 105 in a water-tight manner by bonding, and the protrusion has a simple shape so that it can be easily wiped off even if liquid adheres. . In addition, it is formed of a metal such as stainless steel which has resistance to a chemical solution for disinfection and sterilization, or a metal such as copper which is plated with a metal having resistance such as gold and the like. I have.

The lamp 10 is mounted on the rotating base 114.
Lamp holding members 118a and 118b for gripping and fixing the four lamps 104a and 104b are provided.
Reference numerals a and 104b are held at positions where the rotating shaft 113 is rotated by 180 °.

The lamp fixing members 118a, 118
b is made of a conductive material, and the lamps 104a, 104
4b also serves as an electrical connection with the body 119, which is the second contact.

The lamp fixing members 118a and 118b
Turns on the switch 108 and contacts the second leaf spring 120 only when the switch 108 is turned on. The second leaf spring 120 is partially fixed to the exterior cover main body 105 and is electrically connected to the second contact pin 121. This second contact pin 121 also penetrates through the insulating bottom plate, and the lower surface of the bottom plate,
The projection is exposed on the inner surface of the storage section.

The second contact pin 121 is fixed to the outer cover body 105 in a water-tight manner by bonding, and its projection has a simple shape so that it can be easily wiped off even if liquid adheres. . In addition, it is formed of a metal such as stainless steel that has resistance to chemicals for disinfection and sterilization, or formed by plating the surface of a metal such as aluminum or copper with a metal such as gold. Have been.

As shown in FIG. 11, when the switch is set to “ON (a)”, one of the two lamps 104 a and 104 b disposed inside the outer cover body 105 is turned on. The other lamp 104b is turned on when set to “ON (b)”, and does not turn on when set to “OFF”.

At this time, the lit lamp is positioned so as to face the condenser lens 122 by a click mechanism (not shown). This condenser lens 122 and a connection base 123 detachably connected to a light guide base 134 provided on the operation unit 11 of the endoscope main body 100 (see FIG. 13).
The exterior cover body 105 is fixed in a watertight manner by bonding. Therefore, the inside of the outer cover body 105 has a completely watertight structure.

By connecting the lower cover 107 to the threaded portion at the lower end of the outer cover main body 105, the inner unit 103 can be detachably attached to the lower part of the bottom plate of the outer cover main body 105 and the inner part of the lower cover 107. An internal unit storage portion to be stored is formed.

Next, the internal unit 103 will be described.

The internal unit 103 has a substantially cylindrical shape.
At the lower end side, a connecting tube portion having substantially the same inside diameter as the lower cover 107 is integrally formed, and claws 124 are provided at two opposing positions in the connecting tube portion.
07 engages with engagement grooves 125 provided at two opposing inner surfaces (or the entire inner peripheral surface) near the lower end, thereby connecting the outer cover 102 and the inner unit 103. The claw 124 is formed by, for example, resin molding, and can be set in a state in which the claw 124 is bent inward by being pushed in by a pushing portion 126 at a position on the base end side of the claw 124 so as to be disengaged from the engagement groove 125. ing.

A rechargeable battery 127 is built in the internal unit 103 by molding it with an insulating resin or the like. On the upper surface, a rechargeable battery 127 for supplying a current to a lamp lit from the rechargeable battery 127 is provided. A first spring contact 128 and a second spring contact 129 made of a conductive member having elasticity (for example, phosphor bronze) are provided.

The first spring contact 128 and the second spring contact 129 are electrically connected to the contact of the rechargeable battery 127 by a circuit (not shown).
And when the internal unit 103 is connected, the first contact pin 117 and the second contact pin 121 of the outer cover body 105 are urged and contact with each other.

Further, the rechargeable battery 12 is mounted on the lower surface of the internal unit 103 by a circuit (not shown).
7 and the charging contacts 130a, 130b energized.
Is provided. The charging contacts 130a and 130b are formed of a ferromagnetic material that is attracted to the magnet.

When the battery light source 101 is hung on the endoscope hanger 131 shown in FIG. 13, the rechargeable battery 127 can be charged by the charging device provided on the endoscope hanger 131.

The endoscope hanger 131 has a column, an arm which can be fixed at an arbitrary height position of the column, a battery light source holder 138 attached to the arm, and a built-in portion near the bottom of the battery light source holder 138. The charging circuit is connected to a cord passing through an arm, a column, etc., and a plug 139 provided at an end of the cord extending from a lower portion of the column is connected to an outlet of a commercial AC power supply. The connection allows the charging circuit to be set to an operating state.

That is, when the endoscope hanger 131 holds the endoscope 99 including the endoscope main body 100 and the battery light source 101 detachably connected to the endoscope main body 100, the endoscope hanger 131 is used. The battery light source 101 forming the operation unit 99 is held by the battery light source holder 138.

Then, the endoscope 99 is connected to the endoscope hanger 1.
When hooked on 31, charging contacts 130a, 130b are provided on the bottom inner surface of the battery light source holder 138 by magnetic contacts 132a, 13 (using magnets as charging contacts).
2b is reliably contacted by magnetic force, so that a charging circuit (not shown) can supply a DC voltage of a predetermined voltage required for charging to the rechargeable battery 127. The battery light source holder 138 is provided with LEDs 133a and 133b for notifying the completion of charging during battery charging.

Incidentally, as shown in FIG.
The heat-insulating cover 135 is detachably attached to the light guide base 134 of No. 0. Other configurations of the endoscope main body 100 are the same as those of the first embodiment, and the insertion unit 10, the operation unit 11, the eyepiece unit 12, and the like are denoted by the same reference numerals.

Next, the operation of the present embodiment will be described. When an inspection is performed using the endoscope described in the present embodiment, first, the internal unit 1 in a state where the rechargeable battery 127 is charged is used.
03 is inserted into the exterior cover 102 from below. Thereby, the claw 124 of the internal unit 103 and the lower cover 10
7 are engaged, and the internal unit 103 and the outer cover 102 are connected.

At this time, the first spring contact 128 and the second spring contact 129 are in contact with the first contact pin 117 and the second contact pin 121 while being urged. Thereby, the first spring contact 128 is connected to the first contact pin 117,
The lamp is electrically connected to the rear end of the lamp via the first leaf spring 116 and the rotating shaft 113, and
Spring contact 129 is connected to the second contact pin 121 through the second contact pin 121.
Is in a state of being electrically connected to the leaf spring 120.

Next, the battery light source 101 is connected to the endoscope main body 1.
00 light guide base 134. Next, the switch 108 is rotated to perform an ON / OFF operation of the lamp. When the switch 108 is set to "ON (a)", the lamp fixing member 118a gripping the body 119 of the lamp 104a comes into contact with the second leaf spring 120, and a current flows through the lamp 104a to light the lamp. The lamp 104 a is positioned so as to face the condenser lens 122 by a click mechanism (not shown). "ON (b)"
, The lamp 104b is turned on by a similar route. Further, when the lamp is set to “OFF”, the space between the second leaf spring 120 and the lamp fixing members 118a and 118b is in an open state, and no current flows to the lamp.

When the lamp is turned on, the temperature of the connection base 123 and the light guide base 134 rises due to the heat generated from the lamp. However, the hand holding the operation unit 11 with the detachable heat-insulating cover 135 allows the connection base 123 and the light. It prevents contact with the light guide base 134.

After the endoscope inspection, the switch 108 is set to “O”.
FF "to turn off the lamp. Thereafter, the pushing portion 126 provided in the internal unit 103 is pushed in to bend the claw 124 inward, and the claw 124 is removed from the engagement groove 125 provided in the lower cover 107. At this time, the first and second spring contacts 128, 1
29, the internal unit 1 can be easily opened.
03 can be removed from the outer cover 102.

Subsequently, only the endoscope main body 100 and the outer cover 102 of the battery light source 101 are immersed in a disinfecting solution, and disinfected and sterilized by ethylene oxide gas or the like. The heat-insulating cover 135 is also removed from the light guide base 134,
Disinfect and sterilize. Since the inner unit 103 is entirely covered with the outer cover 102 except for the bottom surface which is not touched in the case, there is no need for disinfection and sterilization.

After dipping in the disinfecting solution, the outer cover body 105
Then, the lower cover 107 is removed, and the liquid adhering to the outer cover 102 is wiped off. The contact pins 117 and 12
Since 1 has a simple shape, the liquid adhering to this portion can be easily wiped off. After disinfection and sterilization, the battery light source 101 is assembled again, and after confirming that the switch 108 is "OFF", the battery light source 101 is attached to the endoscope main body 100.

When the endoscope hanger 131 is hung in this state, the charging contact 130 provided on the battery light source 101 is provided.
a, 130b and magnetic force contacts 132a, 132 provided on (the battery light source holder 138 of) the endoscope hanger 131.
b reliably comes into contact with the magnetic force, and the rechargeable battery 127 in the internal unit 103 is automatically charged. still,
While the battery is being charged, the indication of the completion of charging is indicated by the LEDs 133a, 1
33b.

The present embodiment has the following effects. The internal unit 103 is structured to be covered with the outer cover 102, and only the contaminated outer cover 102 is disinfected and sterilized, thereby causing a problem of the conventional product "function failure due to invasion of liquid when immersing in a chemical solution". Can be eliminated. Further, the outer surface of the battery light source 101 can be reliably disinfected and sterilized.

Further, since an opening for mounting and dismounting the internal unit 103 is provided below the outer cover 102, the mounting and dismounting of the internal unit 103 is easy. Therefore, it is very easy to remove the internal unit 103 before immersing the battery light source 101 in a disinfectant or the like.

In this embodiment, since a plurality of lamps are built in, a spare lamp can be easily turned on simply by turning the switch 108 even if the lamp is cut off. Therefore, there is no interruption of the inspection due to the burnout of the lamp. Also,
By storing lamps of different brightness in advance, the amount of light can be adjusted according to the usage of the endoscope and the specifications of the endoscope used in combination. As a result, power consumption can be saved, and the life of the battery can be extended.

By providing a charging contact outside the battery light source 101 and using a dedicated endoscope hanger 131,
At the start of use, the endoscope hanger 131 is always charged simply by hanging the endoscope of the battery light source type. Therefore, it is not necessary to pay attention to the state of charge of the battery.

The present embodiment is not limited to the structure of this embodiment, but can be variously modified. For example, a battery light source 101 'as shown in FIG. 14 may be used.
The battery light source 101 ′ includes an outer cover 102 ′ having an outer cover body 105, an upper cover 106 screwed above the outer cover body 105, and a lower cover screwed below the outer cover body 105. 107, and a switch 108 'rotatably attached to the upper cover 106. Further, the inner unit 103 is opened from the opening at the bottom of the outer cover 102 '.
(Not visible in FIG. 14).

In the first modification, the internal unit 103
Without charging contacts 130a and 130b on the bottom of
Instead, charging contacts 136a and 136b are provided on the outer surface of the outer cover body 105. The switch 108 'is provided with a "charge" mode. The charging contacts 136a and 136b are not normally electrically connected to the charging battery contacts, but when the switch 108 'is set to "charging", the charging contacts 136a and 136b are electrically connected to the charging battery contacts by a mechanism (not shown). The connection structure may be adopted.

The other configuration is the same as that of the battery light source 101 of the second embodiment. The first modified example has almost the same operation and effect as the battery light source 101 of the second embodiment.

Further, as in the second modification shown in FIG. 15, the internal unit 148 has a structure in which the internal unit 148 can be attached to the outer cover 147 in both the upper and lower directions.
The normal use state (lighting lamp lighting standby state) and the charging state (charging standby state) may be configured to be separated according to the mounting direction.

The battery light source 145 is different from the battery light source 101 shown in FIG. 12 in that a lower cover 146 having a slightly different structure is used instead of the lower cover 107 to form an outer cover 147.
Are formed. The lower cover 146 has an opening at the bottom, through which the internal unit 148 can be inserted and removed.

This internal unit 148 has a built-in rechargeable battery 127 similarly to the internal unit 103 of FIG.
The pair of electrodes are electrically connected to a pair of spring contacts 150a and 150b formed on the upper end surface and made of an elastic conductive member. The spring contacts 150a and 150b are formed using a ferromagnetic material.

A spring 152 is provided on the bottom surface of the internal unit 148 to be used for urging the internal unit 148 for removal. Further, a pair of convex pieces 153a and 153b urged to project outward by a spring are provided on the side surfaces of the internal unit 148, respectively.
Holes are provided at corresponding positions in 46, and are covered with elastic covers 154a and 154b.

In this case, during normal use, the internal unit 148 is connected to the spring contact 150 through the opening at the bottom of the lower cover 146 in the outer cover 147 as shown in FIG.
a, 150b are mounted in a direction in which they are housed inside. At this time, the spring contacts 150a and 150b are
Contact pins 121 and 117 provided on the side.

When the switch 108 is set to the ON position, the lamp 104a is turned on. When the switch 108 is turned to the OFF position from this state, the lamp 104 is turned off.
a is in the OFF state in which the current is interrupted. That is, the illumination lamp lighting standby state is set.

On the other hand, at the time of charging, as shown in FIG. 15B, the internal unit 148 is attached to the outer cover 147 in an upside down state. At this time, the spring contacts 150a, 1
50b projects from the bottom of the battery light source,
The magnetic contacts 132a and 132b serving as charging contacts provided on the endoscope hanger 131 shown in FIG. Other configurations are the same as those in FIG. 12, and the same components are denoted by the same reference numerals and description thereof will be omitted.

Since the internal unit 148 is provided with the spring 152 which does not also serve as an electrical contact, the internal unit 148 which is attached upside down by pressing in the covers 154a and 154b serving as the press-in portions is pushed upside down.
Can also be easily removed by the elastic force of the spring 152.

In either of the first and second modifications, after very simple setting, the endoscope of the battery light source type can be automatically charged simply by hanging it on the endoscope hanger 131,
It is not necessary to pay attention to the state of charge of the battery.

Further, if these means are used, the electric contact for current supply and the electric contact for charging provided in the internal unit 148 can be shared. The other effects are the same as those of the second embodiment.

(Third Embodiment) FIG. 16 shows a third embodiment of the present invention. Endoscope body 20 of the present embodiment
1 is provided with a lamp 205 inside the operation unit 202. The lamp 205 is fitted to the lamp holder 206 so as to be able to conduct electricity, and the lamp holder 206 can be detachably attached to the operation unit 202 in a watertight manner.

The condenser lens 2 is located on the optical axis of the lamp 205.
07 is fixed to a lens frame 208 in the operation unit 202, and further, a light incident end surface 204 is provided at a focal position of the condenser lens 207.
Are arranged, a light guide fiber 203 is fixed to a part of the lens frame 208.

On the side surface of the operation unit 202, a power supply unit connection unit 211a having + and-bipolar electric contact portions 218 is provided, and the current path of both poles is formed by an annular lamp arranged around the eyepiece unit 209. The lamp is connected to the lamp holder 206 and the lamp 205 via a power switch 210. The current path is turned on or off by turning the lamp power switch 210 (the current path is not shown). The other structure of the endoscope main body 201 is basically the same as that of the endoscope main body 2 in FIG.

On the other hand, the power supply unit 212
5 and a battery box 216 accommodating a dry battery 215, and an outer cover 214 for detachably mounting the battery unit 213.

A plurality of stored batteries 215 are connected to the battery box 216 in series, and
4 and the contact pin 21 of the power supply unit connecting portion 211b
7 and the dry battery 215.

The contact pins 217 are elastically projected, and when the power supply unit 212 is connected to the operation unit 202 via the power supply unit connection parts 211a and 211b,
The contact pin 217 reliably contacts the electrical contact portion 218.

The outer cover 214 is made of a material which can sufficiently withstand various disinfecting and sterilizing means such as various chemicals, ethylene oxide gas, and autoclave.

Next, the operation of the present embodiment will be described. The battery unit 213 is stored in the outer cover 214.
Next, the power supply unit connection portion 211b of the power supply unit 212
To the power supply unit connection part 211a on the operation part 202 side.

Subsequently, the lamp 20 is placed in the lamp holder 206.
5 is mounted, and the lamp holder 206 is mounted on a lamp mounting portion 202 provided on the operation unit.

Turn on the lamp power switch 210 to turn it on.
When the power supply unit 212 is turned, the current from the power supply unit 212 is supplied to the lamp 205 via the power supply unit connection units 211a and 211b, and the lamp 205 is turned on. Lamp 20
Outgoing light from the light incident end face 2 by the condenser lens 207
The light is condensed at 04 and is emitted forward from the light emitting end face via the light guide fiber 203 to illuminate the affected part or the like.

When the observation with the endoscope is completed, the lamp power switch 210 is turned to the OFF position and the lamp 20 is turned off.
After turning off 5, the power supply unit 212 is removed from the operation unit 202. Subsequently, when disinfecting and sterilizing the power supply unit 212, the battery unit 213 is attached to the outer cover 214.
And only the contaminated outer cover 214 is disinfected and sterilized with various chemicals, ethylene oxide gas, oak clave and the like.

The endoscope main body 201 has a water-tight structure when the lamp holder 206 is mounted on the operation section 202, and can be immersed in various chemicals. When performing sterilization with ethylene oxide gas, the lamp holder 206 is removed from the operation unit 202, and the inside of the operation unit 202 and the atmosphere are communicated. This embodiment has the following effects. 1. The entire battery unit 213 including the dry battery 215 is covered with the outer cover 214, and only the contaminated outer cover 214 is disinfected and sterilized. All of the factors that cause liquid leakage, leakage, and gas generation from dry batteries can be eliminated.

2. The external part to be attached to the endoscope body 201 does not include a lamp part and a switch part, and is only a so-called power supply part. Therefore, the whole endoscope is made more compact than the endoscope of the first embodiment. Can be.

(Fourth Embodiment) FIG. 17 shows an endoscope 250 according to a fourth embodiment of the present invention. The endoscope main body 251 in the present embodiment has the operation button 253 so that the suction button 20 is oriented such that the direction of the suction base 21 is directed to the direction of the grip portion 252.
Is to be attached to. Further, the suction bin 254 is engaged with the endoscope main body 251 by engaging means (not shown) so as to line up with the forceps insertion opening 22 below the grip portion 252.

The suction bottle 254 is composed of a liquid storage portion 255 made of transparent plastic or the like and a stopper 256 which is press-fitted into the liquid storage portion 255, and one end of the stopper 256 is open to the liquid storage portion 255. Liquid suction pipe 257 and suction pipe 25
8 are provided. The end of the liquid suction pipe 257 extending from the plug 256 is water-tightly pressed into the suction base 21 and connected thereto, and the end of the suction pipe 258 is connected to the side of the operation unit 253 of the power supply pump unit 259. Suction pump section 260
Is press-fitted and fixed to an intake mouthpiece 261 provided at the bottom.

The power supply pump unit 259 has a power supply unit 262 having the same configuration as the power supply unit 212 shown in the third embodiment, and is detachably attached to the power supply unit 262. And a suction pump unit 260 that is electrically connected to the power supply of the first embodiment. That is, the power supply in the power supply unit 262 serves as the power supply for the pump as well as the power supply for the lamp.

The mechanical and electrical connection between the power supply pump unit 259 and the endoscope main body 251 is made by the power supply unit connecting portions 211a and 211b having the same structure as in the third embodiment.

The suction pump section 260 is provided with a small electric suction pump (not shown) inside the suction pump section 260. The suction side of the pump is an intake base 261 and the discharge side is an exhaust base 2
It is connected to 63. Further, a pump switch 264 for turning on / off the conductive path between the pump and the power supply unit 262 is provided in the suction pump unit 260 in a watertight manner.

Further, the suction pump section 260 is entirely watertight by closing the suction port 261 and the exhaust port 263 with a watertight plug 265 in a watertight manner.
Here, in the present embodiment, the suction pump unit 260 is connected and fixed to the power supply unit 262, but is not limited to this, and selects a portion that does not interfere with the operator with respect to the endoscope main body 251. You may make it attach suitably. At this time, the power supply unit 262 and the suction pump unit 2
The electrical connection between 60 is connected by an energizing cable (not shown).

The other structure is the same as that of the third embodiment. Next, the operation of the present embodiment will be described. Endoscope 25
In the observation by zero, for example, aspiration of sputum accumulated in the trachea or bronchi is often performed.

When performing sputum aspiration using the endoscope 250, a suction bin 254 is attached to the endoscope main body 251. Further, a suction pump section 260 is attached to the power supply unit 262, and the suction pipe 257 of the suction bin 254 is attached. , Intake pipe 258
Are connected to the suction base 21 and the suction base 261 respectively.

Subsequently, the pump switch 264 is turned on to start the suction pump, so that the inside of the suction bin 254 becomes a negative pressure, and a suction force acts on the air passage further upstream. Subsequently, when the suction button 20 is operated, the ventilation path is changed to the endoscope main body 2.
Sputum is sucked by communicating with a suction channel that is open at the distal end of the insertion portion 51.

When the sucked sputum flows into the liquid storage portion 255 of the suction bottle 254, it is collected at the bottom of the liquid storage portion 255, and does not flow into the suction pipe 258. At the end of the observation, the suction bin 254 is removed from the endoscope main body 251 and processed. The suction pump section 260 includes a watertight stopper 265.
By attaching a, it becomes watertight, and the chemical solution can be immersed. Others are the same as the third embodiment.

This embodiment has the following effects. Since the suction bin 254 and the suction pump are provided integrally with the endoscope main body 251, and the power for the suction pump is obtained from a common power supply unit with the illumination lamp, a compact function having not only an observation function but also a treatment function is provided. It becomes a battery-type endoscope device, and its use is further expanded.

The other effects are the same as those of the third embodiment. Embodiments formed by partially combining the above-described embodiments and the like also belong to the present invention.

[Supplementary Notes] A light guide fiber for guiding illumination light,
An illumination lamp for emitting light to an incident end of the light guide fiber, and an endoscope provided with a power supply for operating the illumination lamp in an operation unit, an internal unit having at least a power supply and a power supply storage unit; An endoscope, comprising: an exterior cover that covers the entire unit, wherein the exterior cover is detachable from an operation unit.

[0154] 2. The endoscope according to claim 1, wherein the illumination lamp is housed in an operation unit, and a current from an internal unit is guided to the illumination lamp. 3. The internal unit has a power supply, a power storage unit, an illumination lamp, and a switch for turning on and off the illumination lamp, and the switch is operated by a non-conductive switch operation unit provided on an exterior cover. An endoscope according to claim 1, wherein the endoscope is characterized in that:

4. 4. The endoscope according to claim 3, wherein the power source comprises a dry cell. 5. The endoscope according to claim 3, wherein the switch is configured by an electric contact made of a conductive member having elasticity. 6. 4. The endoscope according to claim 3, wherein the switch operation unit includes a cam mechanism.

[0156] 7. 4. The endoscope according to claim 3, wherein the switch operation section is made of an elastic rubber material. 8. When the external unit is provided with the external cover,
A positioning fitting portion is provided on each of the internal unit and the exterior cover so that the optical axis of the illumination lamp provided on the internal unit is oriented in the direction of the connection portion with the operation unit provided on the exterior cover. 14. The endoscope according to claim 1, wherein

9. An endoscope provided with a light guide fiber for guiding illumination light in an operation unit, and a light supply unit for irradiating light to an incident end of the light guide fiber is provided detachably with respect to the operation unit. The light supply unit has an internal unit having a power supply and a power storage unit,
An endoscope comprising: a lighting lamp built in in a watertight structure; and an outer cover for detachably mounting the inner unit so that a part of the inner unit is exposed.

10. The lighting lamp is composed of a plurality of lamps, and one of the lighting lamps is provided with a switching means for selectively supplying current and cutting off the current supply to all the lighting lamps on the exterior cover. Endoscope. 11. The power supply provided in the internal unit is a rechargeable battery, and when an operation unit is hung on an endoscope hanger provided with a charging device connectable to a commercial AC power supply, the rechargeable battery in the internal unit is output from the charging device. The endoscope according to claim 9, wherein a voltage required for charging is applied to the endoscope.

12. The electrical contacts of the rechargeable battery,
12. The endoscope according to appendix 11, wherein the endoscope is provided on an internal unit exposed from an exterior cover. 13. The endoscope according to claim 11, wherein the inner unit has two mounting directions with respect to the outer cover, and the first unit is in an illumination lamp lighting standby state in a first direction and is in a charging standby state in a second direction. .

14. A light guide fiber for guiding illumination light, an illumination lamp for emitting light to an incident end of the light guide fiber, a power supply for lighting the illumination lamp, and a suction channel having one end opened at the tip of the insertion portion An endoscope provided with an operation section, wherein suction means is provided in the operation section.

15. 15. The endoscope according to claim 14, wherein the suction means is operated by a supply current from the power supply. 16. 16. The endoscope according to claim 15, wherein the suction means comprises an electric suction pump.

[0162]

As described above, according to the present invention, a light guide fiber for guiding illumination light, an illumination lamp for supplying light to an incident end of the light guide fiber, and lighting of the illumination lamp An endoscope provided with a power supply for operating the operation unit, the internal end unit having at least a power supply and a power storage unit, and an exterior cover that covers the entire internal unit, and the exterior cover is attached to and detached from the operation unit. Since the outer cover is freely immersed in the chemical, only the contaminated portion can be surely disinfected and sterilized by the immersion in the chemical without immersing the chemical in the chemical without causing a functional damage such as an electric leakage or a battery abnormality.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an overall configuration of an endoscope according to a first embodiment of the present invention.

FIG. 2 is an exploded perspective view showing the configuration of a battery-type light source.

FIG. 3 is a cross-sectional view showing an internal structure and the like of a light guide base and a battery-type light source detachably connected to the light guide base.

FIG. 4 is a view showing a cross section taken along line EE of FIG. 3;

FIG. 5 is a diagram showing a knob portion and the like in a cross section taken along line FF of FIG. 4;

FIG. 6 is an explanatory diagram of the operation of the rotation restriction when the knob is rotated.

FIG. 7 is a cross-sectional view showing a structure near a connection portion when a connection base is connected to the light guide base.

8 is a cross-sectional view taken along the line GG of FIG. 4, showing a structure in which a switch is turned on and off by rotation of a cam.

FIG. 9 is a diagram illustrating a structure of a switch according to a first modified example.

FIG. 10 is a diagram illustrating a structure of a switch according to a second modification.

FIG. 11 is a perspective view showing a battery light source according to a second embodiment of the present invention.

FIG. 12 is a sectional view showing a battery light source.

FIG. 13 is a diagram showing an endoscope and an endoscope hanger according to a second embodiment.

FIG. 14 is a perspective view showing a battery light source according to a first modification.

FIG. 15 is a sectional view showing a battery light source according to a second modification.

FIG. 16 is a diagram showing a configuration of an endoscope according to a third embodiment of the present invention.

FIG. 17 is a perspective view showing a configuration of an endoscope according to a fourth embodiment of the present invention.

FIG. 18 is a sectional view showing a conventional battery light source.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Endoscope 2 ... Endoscope main body 3 ... Battery type light source 4 ... Battery unit 5 ... Lamp unit 6 ... Internal unit 7 ... Lamp house 8 ... Battery case 9 ... Exterior cover 10 ... Insertion part 11 ... Operation part 13 ... Light guide base 14 ... Connection base 15 ... Tip part 24 ... Lamp 25 ... Light guide fiber 26 ... Light incident end face 27 ... Light guide rod 28 ... Cover glass 31 ... Heatproof cover 39 ... Lamp unit body 41 ... Lamp unit base 43 ... Lamp Base 44 ... Leaf spring switch 46 ... Contact plate 47 ... Condensing lens 48 ... Lens frame 49 ... Battery box 52 ... Plate 56 ... Power switch 58 ... Cam 60 ... Knob part 61 ... Rotation regulating spring 62 ... Circular recess

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[Procedure amendment]

[Submission date] October 23, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0089

[Correction method] Change

[Correction contents]

The second contact pin 121 is fixed to the outer cover body 105 in a water-tight manner by bonding, and its projection has a simple shape so that it can be easily wiped off even if liquid adheres. . In addition, it is formed of a metal such as stainless steel which is resistant to a chemical solution for disinfection and sterilization, or formed by plating a metal such as gold on a surface of a metal such as copper. I have.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name]

[Correction method] Change

[Correction contents]

When the observation with the endoscope is completed, the lamp power switch 210 is turned to the OFF position and the lamp 20 is turned off.
After turning off 5, the power supply unit 212 is removed from the operation unit 202. Subsequently, when disinfecting and sterilizing the power supply unit 212, the battery unit 213 is attached to the outer cover 214.
Removed from, disinfection, sterilization performed contaminated exterior cover 214 only chemical liquids, ethylene oxide gas, the O Useful slave like.

Claims (1)

[Claims] A light guide fiber for guiding illumination light, an illumination lamp for supplying light to an incident end of the light guide fiber, and a power supply for lighting the illumination lamp provided in an operation unit. In an endoscope, comprising an internal unit having at least a power supply and a power storage unit, and an exterior cover covering the entire internal unit,
The endoscope, wherein the outer cover is detachable from an operation unit.