JP3401202B2 - 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 an endoscope apparatus, and more particularly to an endoscope apparatus characterized by a battery-type light source detachably attached to the endoscope.

[0002]

2. Description of the Related Art At present, endoscope apparatuses are widely used in the medical field and the industrial field. In this endoscope apparatus, the site to be diagnosed or inspected is inside the living body, or inside the plant, equipment, etc., and therefore means for illuminating these site to be inspected is required. For this reason,
In a general endoscope device, a light source device is prepared as an external device of the endoscope, and illumination light from a lamp attached to a light source unit in the light source device is guided to a light guide fiber provided in the endoscope. The illumination light, which is illuminated and guided by the light guide fiber, is emitted from the illumination window on the distal end side of the insertion portion to illuminate the inspection target site.

The above light source device generally uses a power source supplied from a commercial power source to light a lamp inside the light source device.

On the other hand, for example, US Pat. No. 5,588,895.
The endoscope device described in Japanese Patent No. 0 is a device in which a battery-type light source device (hereinafter, referred to as a battery-type light source) using a battery such as a dry battery as a power source is detachably attached to an operation section of the endoscope. is there. Such an endoscope device in which the battery-type light source is detachably attached to the operation unit is easy to carry and can be used in a place without a power source, so that it is suitable for use in an emergency or outdoors. There is.

[0005]

However, although the endoscope apparatus disclosed in the above-mentioned US Pat. No. 5,588,950 is suitable for observing a subject, it records or monitors a subject image of the subject. A device for power supply was required for the above observation, and it was difficult to use it in a place where power could not be supplied from the outside.

The present invention has been made in view of the above circumstances, and it is difficult to receive power from an external source such as a commercial power source by electrically connecting a battery of a battery type light source to a camera or an image pickup device. The present invention provides an endoscope apparatus capable of recording or observing a subject image of a test portion even in various places.

[0007]

[Means for Solving the Problems] To achieve the above object
The first endoscope apparatus of the present invention is an endoscope capable of observing a subject.
Mirror, light source for supplying illumination light to the inspected part, and the light source
It has a battery that is the power source of the
An attachable battery type light source device, and an endoscope device having the same
In the battery type light source device, the battery
The battery for supplying electric power to the outside of the re-type light source device.
A first connection terminal that can be electrically connected to the battery;
When the re-type light source device is attached, the first connection terminal and the
Provided at a first position of the endoscope that can be electrically connected
The second connection terminal and the second position of the endoscope are provided.
The second connection end electrically connected to the second connection terminal
The bag supplied through the child and the first connection terminal.
Third connection capable of supplying electric power to the outside of the endoscope
And a terminal . In addition, according to the present invention
The second endoscopic device is a rider for illuminating a subject.
Image guiding the subject image from the id fiber and the subject.
An endoscope having an image guide fiber,
Lamp for supplying illumination light to id fiber and said lamp
It has a battery that is the power source of the
An attachable battery type light source device, and an endoscope device having the same
In the battery-type light source device,
Power can be supplied from the battery to the outside of the battery type light source device
The first connection terminal and the battery-type light source device
When electrically connected to the first connection terminal
The second connection terminal provided at the first position of the endoscope
And a second connection provided at a second position of the endoscope
A third connection terminal electrically connected to the terminal;
Capable of imaging the subject area guided from the guide fiber
It can be detachably attached to the third position of the endoscope, and
When it is worn, it is electrically connected to the third connection terminal and
It is electrically connected to the battery via an endoscope and
An image pickup device that operates by the power supplied from the battery;
Is provided . Further, within the third aspect of the present invention.
The endoscope device is a light guide fan for illuminating the subject.
An image guide that guides the image of the subject from the bar and the subject.
An endoscope having a light guide fiber, and the light guide fiber
With a lamp that supplies illumination light to the Iba and the power supply of the lamp
Can be detachably attached to the endoscope with a certain battery
And a battery-type light source device
Of the battery provided in the battery-type light source device.
For supplying electric power to the outside of the battery type light source device
A first power supply unit and the battery provided on the endoscope.
When the re-type light source device is mounted, the power is supplied from the power supply unit.
And a power receiving unit that is supplied to the endoscope.
Supply the power supplied to the power receiver to the outside of the endoscope
And a second power supply unit for
The endoscope capable of capturing an image of the part to be inspected guided from the fiber
Can be detachably attached to the specified position of the mirror, and when attached
Supplied from the battery via the second power supply section to
And an image pickup device that operates with the generated power.
Is characterized by .

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIGS. 1 to 5 relate to a first embodiment of the present invention. FIG. 1 is an explanatory view showing the outer appearance of the entire endoscope apparatus, and FIG. 2 is the endoscope of FIG. FIG. 3 is an explanatory view showing the internal configuration of the entire apparatus, FIG. 3 is a cross-sectional view showing the structure of each connecting portion of the endoscope and the light source device, and FIG. 4 is a structure in the state where the endoscope and the light source device are connected. FIG. 5 is a cross-sectional view, and FIG. 5 is a circuit block diagram for driving an endoscope camera detachably attached to an eyepiece of the endoscope.

As shown in FIG. 1, an endoscope apparatus 1 used in the present embodiment has an elongated insertion portion 2 and a light which is continuously provided on the base end side of the insertion portion 2 and projects from the side portion. Guide base 3
A watertight optical endoscope (hereinafter, simply referred to as an endoscope) 1A having an operating section 4 also serving as a gripping section, and a rear end portion of the operating section 4 of the endoscope 1A. The endoscope camera (hereinafter referred to as camera) 6 detachably connected to the eyepiece unit 5 and the light guide base 3 of the operation unit 4 are detachably connected and electrically connected to the camera 6. It is mainly composed of a battery type light source 7.

The insertion section 2 of the endoscope 1A is provided with a distal end portion 8 provided at a distal end thereof, a bendable bending portion 9 provided at a rear portion of the distal end portion 8, and a rear portion of the bending portion 9. And a flexible portion 10 having a long length and flexibility. A bending operation lever 11 is provided on the rear side of the operation portion 4, and the bending portion 9 can be bent by rotating the bending operation lever 11. Further, on the rear end side of the operation portion 4, a suction button 12 for operating a suction device (not shown) and a release switch (not shown) for holding an image near the suction button 12 are provided.
Are arranged.

Further, the suction button 12 is provided on the rear end side of the operation section 4.
A suction mouthpiece 13 is provided which protrudes from the vicinity of the proximal end thereof in the lateral direction and communicates with a suction channel (not shown) provided in the insertion portion 2 of the endoscope 1A. The suction base 13 is
It is connected to a suction device (not shown) via a tube (not shown), and by operating the suction button 12 appropriately, a suction channel (not shown) and a suction mouthpiece 13 provided in the insertion portion 2 of the endoscope 1A. The body fluid and the like in the body cavity can be suctioned via the. Further, a forceps insertion port 14 for inserting a treatment tool such as forceps is provided on the distal end side of the operation unit 4. The forceps insertion port 14 communicates with a suction channel (not shown) provided in the insertion portion 2 of the endoscope 1A. A forceps plug 15 is detachably attached to the forceps insertion port 14. Further, a ventilation mouthpiece 16 is provided at a position opposite to the forceps insertion opening 14 of the operation portion 4 of the endoscope 1A, and air can be sent from the ventilation mouthpiece 16 into the endoscope 1A. It is possible to perform a water leak test of the endoscope 1A.

The battery type light source 7 includes a lamp house 18 for accommodating a light source lamp 17 described later, a battery case 20 for accommodating a battery 19 such as a battery described later slidably fixed to the lamp house 18 in a watertight manner, and a lamp. It has a lighting switch 21 and the like. The lamp house 18 and the battery case 20 may be detachable from each other. The battery type light source 7
The battery type light source 7 is integrally connected to the endoscope 1 </ b> A by detachably connecting the connection base 22 to the light guide base 3.

The camera 6 is detachably attached to the eyepiece unit 5 for taking a subject image of a subject. The camera 6 has a finder 6a, which will be described later, on the side of the main body, and operates the endoscope device 1 while looking at the finder 6a, and if there is a subject image to be photographed, the endoscope operating unit 4 A release switch (not shown) provided on the is operated to shoot a subject image.

In this embodiment, the battery 1 of the battery type light source 7 is attached to the camera 6 which is detachably attached to the eyepiece 5.
By supplying the power supply power of 9, the subject image can be recorded or observed even in a place where it is difficult to receive power supply from the outside such as a commercial power supply.

Next, the internal structure of the entire endoscope apparatus will be described with reference to FIG.

A light guide fiber 23 for guiding illumination light is inserted into the insertion portion 2, and the light guide fiber 23 is bent in the operation portion 4 so that a light incident end face 24 at the rear end is formed. It is fixed in the light guide base 3.

When the battery case 20 accommodating the battery 19 such as a battery is slidably fixed to the lamp house 7, the battery type light source 7 faces the lamp house 7 of the battery case 20 electrically connected to the battery 19. The power supply connection terminal 25a provided on the surface and the power supply connection terminal 25b provided at the position of the lamp house 7 facing the power supply connection terminal 25a come into contact with each other, and the power supply connection terminal 25b.
The power supply line 26 in the lamp house 7 that is electrically connected to the battery 19 is electrically connected to the battery 19.

The power supply line 26 is electrically connected to the light source lamp 17 in the lamp house 7 through the lamp lighting switch 21. When the lamp lighting switch 21 is turned on, the light source lamp 17 is turned on. It has become.

When the connection base 22 of the battery type light source 7 is connected to the light guide base 3 and the light source lamp 17 is turned on, the illumination light emitted from the light source lamp 17 is condensed by the condenser lens 27. The light enters the light incident end face 24 of the light guide fiber 23. This light incident end face 24
The illumination light incident from the light guide fiber 23 is guided and is emitted from the light emitting end surface fixed to the illumination window of the distal end portion 8 of the insertion portion 2 through the lens 28 to pass through a subject such as an affected area. It is designed to illuminate. A subject image from the illuminated subject is formed by an objective lens 29 provided in the tip portion 8. At the imaging position of the objective lens 29, the tip end surface of an image guide fiber 30 as an image fiber bundle is arranged, and the image guide fiber 30 guides the subject image to the end surface of the eyepiece 5. When the eyepiece unit 5 is used without the camera 6 attached, the guided light image of the subject is visually observed from the cover glass 31a through the eyepiece lens 31 disposed in the eyepiece unit 6. You can observe it.

At the connecting portion between the connection mouthpiece 22 of the battery type light source 7 and the light guide mouthpiece 3, a power source connection terminal 32 is provided which is connected to the power source line 26 in the battery type light source 7. , The power supply connection terminal 33 disposed at the position of the light guide cap 5 facing the power supply connection terminal 32 is in contact, and the other end of the power supply line 34 conducted to the power supply connection terminal 33 has an eyepiece portion. 5 is electrically connected to the power supply connection terminal 35.

The camera 6 has the power supply connection terminal 35.
A power supply connection terminal 36 is provided at a position opposite to the power supply connection terminal 36, and the camera 6 is detachably attached to the eyepiece section 5, so that the power supply connection terminal 35 and the power supply connection terminal 36 provided on the eyepiece section 5 Is electrically connected to the power supply connection terminal 36, and the power supply line 37 in the camera 6 is supplied with power from the battery 19 to supply power to each circuit in the camera 6. .

When the camera 6 is attached to the eyepiece 5, the subject image emitted from the eyepiece 31 is guided to the condenser lens 75 of the camera 6 through the cover glass 31a. There is. Behind the condenser lens 75, for example, a mirror 76 inclined at about 45 degrees is arranged to guide the guided subject image to the finder 6a. When a release switch (not shown) of the endoscope operation section is pressed to capture this subject image,
The mirror 76 is rotated about a shaft 76a at a position indicated by a dotted line in FIG. 2 by a motor described later, and a subject image is formed on a film 38 loaded in a film cassette (not shown) built in the camera 6. It is supposed to be a statue.
An optical system for adjusting the image forming position may be provided on the optical path between the eyepiece lens 31 and the film 38, if necessary.

The camera 6 includes a film cassette (not shown) loaded with a film 38, and a detecting means 39 for detecting that the camera 6 is attached to the endoscope 1A.
And an electric control which constitutes a main part of a control mechanism of the camera 6 which receives a signal from the detection means 39 through a signal line 39a and performs control for projecting a subject image of a subject portion on the film 38. The power source connection terminal 36 and the like for connecting to the battery type light source 7 are built in.

The power supply connection terminal 36 is provided at a position corresponding to the power supply connection terminal 35 provided on the eyepiece 5 of the endoscope 1A as described above, and the camera 6 is brought into contact with the eyepiece. Both power supply connection terminals 35 and 36 are connected to each other when mounted on the part 5, and both power supply connection terminals 32 and 33 are connected when the battery type light source 7 is connected to the endoscope 1A. ing.

Next, the construction of the light guide cap 3 of the operation portion 4 and the connection cap 22 of the battery type light source 7 will be described with reference to FIG. A proximal end side of a substantially cylindrical light guide rod 41 that is a main frame forming the light guide base 3 is fixed to the operation portion 4. The tip of the light guide rod 41 has a large wall thickness, that is, an inner diameter is thin, and the end of the light guide fiber 23, which is inserted from the base end side, on the light incident end face 24 side is fixed with a screw. Has been done. A substantially cylindrical cover glass receiver 43 having a cover glass 42 bonded and fixed to the tip thereof is screwed and fixed to the tip of the light guide rod 41, and an O-ring 44 ensures watertightness between these gaps. By externally fitting the connection base 22 of the battery-type light source 7 to the light guide rod 41, the battery-type light source 7 is detachably attached to the light guide base 3. Also,
On the outer periphery of the light guide rod 41 at the base end side, a connection base 22
A watertight ring 45 is provided to prevent liquid from entering through the connection portion when the connection is made.

A click ring 46 is provided at a position closer to the end than the watertight ring 45 on the outer circumference of the light guide rod 41.
Is annularly mounted, and a click convex portion 47 is formed at a position on the inner circumference of the connection mouthpiece 22 facing the click ring 46. When the connection mouthpiece 22 is attached, the click protrusion 46 overlies the click ring 46, so that a click feeling can be obtained and the connection mouthpiece 22 can be reliably attached to the light guide rod 41.

The click ring 46 clicks the convex portion 4
When 7 gets over, the taper inner peripheral surface 48 formed on the inner circumference of the connection mouthpiece 22 and the taper outer peripheral surface 49a formed at the front end of the electrode base 49 made of an insulating member fitted on the light guide rod 41 are separated. It comes to abut.
Further, the click ring 46 is the light guide rod 41.
It is fixed to the light guide rod 41 so as to be sandwiched between the step portion formed on the outer periphery and the rear surface of the electrode base 49.

A pin groove 50 is formed on the outer periphery of the electrode base 49 in the longitudinal direction, and the pin 22 is located at a position facing the pin groove 50 so as to project to the inner periphery of the pin 22. The pin 51 is fixed. By attaching the connection mouthpiece 22 to the light guide rod 41 so that the positioning pin 51 is engaged with the pin groove 50,
The connection mouthpiece 22 can be attached to the light guide rod 41 in a fixed direction.

The power supply connection terminal 33 is arranged on the outer peripheral surface of the electrode base 49. In the figure, 2
Only one of the three power supply connection terminals 33 is shown. As described above, the power supply line 34 reaching the eyepiece 5 is connected to the power supply connection terminal 33.

A notch is formed at a position of the connection mouthpiece 22 facing the power supply connection terminal 33, and the leaf-spring-like power supply connection is formed so as to project into the connection mouthpiece 22 through the notch. A terminal 32 is provided. Although two power supply connection terminals 32 are provided corresponding to the two power supply connection terminals 33, only one is shown in the drawing.
The power supply connection terminal 33 is electrically connected to the battery 19 via the power supply line 26.

By engaging the positioning pin 51 with the pin groove 50, the direction of the connection mouthpiece 22 with respect to the light guide rod 41 is kept constant, so that the power supply connection terminal 33 and the power supply connection terminal 32 are securely connected. Is positioned so that it touches. The connection mouthpiece 22 is fitted and fixed in a hole formed in the light source device main body 52 that is a frame forming the lamp house 18 of the battery type light source 7,
The light source lamp 17 is fixed to the rear of the connection base 22 in this hole. The gap between the light source device main body 52 and the connection mouthpiece 22 is watertight, for example, secured by an O-ring arranged in the vicinity of the outer front end of the connection mouthpiece 22. At the rear end of the inner circumference of the connection base 22, a condenser lens 27 is fixed on the optical axis of the light source lamp 17, and the illumination light emitted from the light source lamp 17 is condensed.

As shown in FIG. 4, when the connection base 22 is attached to the light guide rod 41 of the light guide base 3,
The light guide fiber 23 is provided at the condensing position of the condensing lens 27.
The light incident end face 24 is positioned, and the illumination light emitted from the light source lamp 17 is condensed by the condenser lens 27 and is incident on the light incident end face 24.

Further, the power supply connection terminal 33 and the power supply connection terminal 3
2 comes into contact with each other, and the electric power supplied from the battery 19 is
The power is supplied to the power supply line 34, and is supplied from the power supply connection terminal 34 at the rear end of the power supply line 34 to the power supply connection terminal 35 of the camera 6 via the eyepiece 5.

Inside the camera 6, the power supplied from the power supply connection terminal 35 is supplied to the detection means 39 and the electric control device 40.

As shown in FIG. 5, the electric control unit 40 constitutes the main part of the control mechanism of the camera 6, and the subject image of the subject portion guided from the image guide fiber 30 is brought into the eyepiece portion. The control for imprinting on the film 38 loaded in the film cassette (not shown) is performed via the eyepiece lens 31 of FIG.

The electric control unit 40 rotates a film winding motor 61 for winding the film 38 loaded in a film cassette (not shown) and a mirror 76 on the optical axis for the subject image incident on the finder 6a. The mirror rotation motor 61a for causing the subject image guided to the film 38 to enter the finder 6a by rotating the mirror 76, and vice versa. , 6
1 a, a motor control circuit 62, a shutter release electromagnet (hereinafter, electromagnet) 63 for releasing a shutter (not shown), an electromagnet control circuit 64 for controlling the electromagnet 63, and a subject image on the film 38. Imprinting light-emitting body (hereinafter, light-emitting body) 65 for imprinting, light-emitting body control circuit 66 including a decoder and driver for controlling this light-emitting body 65, film sensitivity detection device for detecting sensitivity, battery checker, etc. Detection display means 67 and the detection display means control circuit 6 for controlling the detection display means 68.
8, a display body 69 for externally displaying the number of film frames, the shooting date and the like, a display body control circuit 70 including a decoder and a driver for controlling the display body 69, and a motor control circuit 62 for these. It is composed of an electromagnet control circuit 64, a light emitter control circuit 66, and a sequence control circuit 71 for controlling the entire control circuit of the detection display means control circuit 68. The film winding motor 61 and the mirror rotation motor 61a may be arranged in the eyepiece 5 to which the image guide fiber 30 is attached.

As described above, the battery 19 passes through the power source line 26 via the power source connecting terminals 25a and 25b, has one end connected to the light source lamp 17, and the other end via the power source connecting terminals 32 and 33. It is connected to the camera 6 through the power supply line 34 and the power supply connection terminals 35 and 36, and supplies power to the power supply line 37 inside the camera 6. One end of the power supply line 37 is connected to the detection means 39, and the other end is connected to the sequence control circuit 71 of the electric control device 40.

In the electric control unit 40, the electric power of the battery 17 is supplied to the motor control circuit 62, the electromagnet control circuit 64, the light emitter control circuit 66, and the detection display means control circuit 68 from the detection means 39 via the signal line 39a. The display body 6 is supplied through a series circuit with the display body control circuit 70 which is respectively supplied and is further connected to the sequence control circuit 71.
9 is being supplied. The film winding motor 61 and the mirror rotation motor 61 a are supplied with the electric power of the battery 17 via the motor control circuit 62. Further, the sequence control circuit 71 includes a motor control circuit 62, an electromagnet control circuit 64, and a light emitter control circuit 6.
6, connected to the detection / display means control circuit 68 and the detection / display means 67, and controls the entire control circuits as described above. The film winding motor 61, the mirror rotation motor 61a, and the like may directly supply the power of the battery 17.

The camera 6 constructed as described above is used in the endoscope 1
When the inspection is performed by detachably attaching to the eyepiece part 5 of A, first, the battery type light source 7 is connected to the light guide base 3 of the endoscope 1A.

First, a battery 19 such as a new dry battery or a charged rechargeable battery is loaded in the battery case 20, and the battery case 20 is slidably fixed to the lamp house 18. 26 is electrically connected to the battery 19 in the battery case 20.

Next, the battery type light source 7 is connected to the light guide base 3 of the endoscope 1A. At this time, by pushing the battery-type light source 7 so that the positioning pin 51 of the battery-type light source 7 engages with the pin groove 50 of the light guide base 3, the orientation of the battery-type light source 7 with respect to the light guide base 3 is positioned. . Then, when the click convex portion 47 in the connection mouthpiece 22 has just passed over the click ring 46, the tapered outer peripheral surface 49a of the electrode base 49 comes into contact with the taper inner peripheral surface 48 in the connection mouthpiece 22, and the click fixing is completed. Since the tapered outer peripheral surface 49a and the tapered inner peripheral surface 48 that are in contact with each other are formed in a tapered shape, the connection cap 22
Is fixed so that its central axis is located at the central axis of the light guide base 3. In the state of FIG. 4 in which the click fixing is completed, the power supply connection terminal 32 and the power supply connection terminal 33 are electrically connected,
The power supply connection terminal 35 of the eyepiece 5 and the battery 19 are electrically connected.

Subsequently, when the lamp lighting switch 21 is turned to the ON side, a current flows from the battery 19 to the light source lamp 17, and the light source lamp 17 is turned on. The illumination light emitted from the light source lamp 17 is condensed by the condenser lens 27, is incident on the light incident end surface 24 of the light guide fiber 23, is guided to the light guide fiber 23, and is located at the tip portion 8. The light is emitted from the light emitting end surface of 23 to illuminate a test portion such as an affected area.

The illuminated subject image of the subject portion is the tip 8
Image guide fiber 3 through the objective lens 29 inside
The light enters the 0-incidence end face and is guided to the eyepiece 5 by the image guide fiber 30.
1. The operator can view the subject image through the cover glass 31a.

Here, when the subject image is taken, the camera 6 is detachably attached to the eyepiece unit 5. As a result, the power supply connection terminal 35 of the eyepiece 5 and the power supply connection terminal 36 of the camera 6 come into contact with each other, and the current from the battery 19 is supplied to the power supply line 37 of the camera 6. This power line 3
7, the detection means 39 is switched and the power source power of the battery 19 is supplied to the motor control circuit 62, the electromagnet control circuit 64, and the light emitter control circuit 6 via the signal line 39a.
6. The control circuit 68 supplies the signal to the detection display means control circuit 68 to operate these control circuits, and at the same time, gives a signal to the sequence control circuit 71 that the camera 6 is mounted on the endoscope 1A.
By operating the motor control circuit 62, the electromagnet control circuit 64, the light emitter control circuit 66, and the detection display means control circuit 68, the motor 61, the electromagnet 63, the light emitter 65, and the detection display means 67 can be supplied. . Therefore, the sequence control circuit 71 causes the motor control circuit 6 to operate in response to a photographing operation such as pressing a shutter release button (not shown).
2. The electromagnet control circuit 64, the light emitter control circuit 66, and the detection display means control circuit 68 are controlled, and the mirror 76 is rotated by driving the motor 61a, and the subject image is displayed by the viewfinder 6.
The operation of guiding the light from a to the film 38 and the operation of winding the film 38 by driving the motor 61 are performed.
Further, the electromagnet 63 is operated to release the shutter.

As described above, the film 19 of the camera 6 can be wound up and other functions can be operated by the battery 19 such as a battery built in the battery type light source 7.

This makes it possible to record or observe the subject image of the subject portion even in a place where it cannot be supplied with power from the outside such as a commercial power source. Therefore, it is easy to bring an endoscope to the disaster area in the event of a disaster. It is possible to perform endoscopic observation and photograph a subject image.

In the camera 6 of the present embodiment, the image of the subject incident on the finder 6a is guided by the film to the film 38 by rotating the mirror 76, but the present invention is not limited to this. The present invention is not limited to this. For example, a prism or the like may be used instead of the mirror 76, and the finder 6
Of course, the structure may be such that the subject image is guided to the a and the film 38 at the same time and the image is taken while observing with the finder 6a.

(Second Embodiment) FIGS. 6 and 7 relate to a second embodiment of the present invention. FIG. 6 is an explanatory view showing the internal structure of the entire endoscope apparatus, and FIG. It is explanatory drawing explaining the internal structure of the observation apparatus detachably attached to the eyepiece part of a mirror. The same components as those in FIG. 2 are designated by the same reference numerals, and an observation apparatus detachably attached to the eyepiece portion of the endoscope which is different will be described.

In the first embodiment, a camera which is detachably attached to the eyepiece 5 by injecting and guiding the subject image of the subject to the image guide fiber 30 having the incident end face inside the insertion portion 2. In the present embodiment, the observation device for displaying the subject image from the image guide fiber 30 on the monitor is used instead of the camera 6 of the first embodiment. The endoscope device is detachably attached to the eyepiece unit 5.

As shown in FIG. 6, in the endoscope device 80 used in the present embodiment, an optical endoscope (hereinafter, endoscope) 8 is used.
The observation device 81 is detachably attachable to the eyepiece unit 0A of 0A.

When the observation device 81 is attached to the eyepiece 5, the subject image emitted from the eyepiece 31 is focused on the light receiving portion of the solid-state image pickup device 82 such as CCD or BBD provided in the observation device 81. It is like this. An optical system for adjusting the image forming position may be provided on the optical path between the eyepiece lens 31 and the solid-state image sensor 82, if necessary.

The observing device 81 includes a solid-state image pickup element 82 for photoelectrically converting an object image guided from an image guide fiber through an eyepiece lens 31, and the solid-state image pickup element 8.
2. A solid-state image sensor control circuit 83 for processing the signal photoelectrically returned in 2 to generate a video signal, a display element control circuit 84 as display means for displaying the video signal from the solid-state image sensor control circuit 83, and this display. It is composed of a solid-state image pickup display element 85 such as an LCD or an LED which displays an image under the control of the element control circuit 84.

Further, in the observation device 81, the power supply connection terminal 86 is provided at a position corresponding to the power supply connection terminal 35 provided in the eyepiece 5 of the endoscope 80A. When the eyepiece 5 is attached to the eyepiece 5, the power supply connection terminal 35 of the eyepiece 5 and the power supply connection terminal 86 of the observation device 81 are connected. When the battery type light source 7 is connected to the endoscope 1A with the observation device 81 attached to the eyepiece 5, the power source connection terminal 32 of the battery type light source 7 and the light guide base 3 of the endoscope are provided. The power of the battery 19 of the battery type light source 7 is supplied to the power supply line 87 in the observation device 81 which is connected to the power supply connection terminal 33 and which is electrically connected to the power supply connection terminal 86.
Power is supplied to each circuit inside.

Next, the details of the observation device 81 detachably attached to the endoscope eyepiece 5 will be described with reference to FIG. First, the eyepiece 5 to which the observation device 81 is attached will be described.

The eyepiece portion 5 of the endoscope 80A is provided with a substantially cylindrical eyepiece portion frame 90 which is a frame body forming the eyepiece portion 5. An eyepiece lens 31 is arranged inside the eyepiece frame 90 so that the optical axis thereof substantially coincides with the central axis of the eyepiece frame 90. Then, in the eyepiece portion 5, one end of the image guide fiber 30 is fixed so that the optical axis of the image guide fiber 30 and the optical axis of the eyepiece lens 31 coincide with each other.

At the inner circumference of the opening at the rear end of the eyepiece frame 90,
A groove 91 is formed, and in the groove 91, a notch for guiding (not shown) for guiding the ring-shaped flange 93 provided in the opening at the front end of the casing 92 of the observation device 81 is provided in the eyepiece. It is formed in the opening of the frame 90. And this groove 9
A bayonet for fixing the flange 93 is arranged in the inside of the apparatus 1 so that the observation device 81 can be easily attached and detached.

A power supply connection terminal 86 is provided on the front end surface of the flange 93, and the power supply connection terminal 35 is provided at the position of the groove 91 facing the power supply connection terminal 86. As a result, when the observation device 81 is bayonet-connected to the eyepiece 5, the power supply connection terminal 35 abuts on the power supply connection terminal 86, and the battery 19 and the power supply connection terminal 8 are connected.
6 and 6 are electrically connected. As described above, from the power supply connection terminal 86, the power supply line 87
Through the solid-state image sensor control circuit 8 in the observation device 81.
3, electric power is supplied to each component such as the display element control circuit 84, the solid-state image display element 85, and the like. That is, the battery 19 is used as a power source of the observation device 81.

A hollow image pickup device frame 94 for supporting the solid-state image pickup device 82 is fitted and fixed in an opening in the inner circumference of the front end of the casing 92 of the observation device 81. The flange 93 is fitted and fixed to the inner circumference of the front end of the image pickup device frame 94 by adhesion. The solid-state imaging device 82 has the light receiving section 9 thereof.
The image pickup device 5 is fixed to the front end face of the rear wall of the image pickup device frame 94 so that the image pickup device 5 is located at the image forming position of the image emitted from the eyepiece lens 31. The terminal extending rearward from the solid-state image sensor 82 is
It is inserted into the insertion hole 96 formed in the rear wall of the image pickup device frame 94, and is fixed to the substrate surface formed on the rear surface of the rear wall of the image pickup device frame 94 with solder or the like. The terminal of the solid-state image sensor 82 is electrically connected to the solid-state image sensor control circuit 83 from the substrate surface of the image sensor frame 94 via the signal line 97. Then, the solid-state image pickup device control circuit 83 uses the signal line 9
8 is connected to the display element control circuit 84.
Then, the display element control circuit 84 and the solid-state image display element 85
Are connected via a signal line 99, and the display element control circuit 84 controls and drives the solid-state image display element 85.

A ring-shaped support member 100 is screwed onto the inner periphery of the opening on the rear end side of the casing 92, and the solid-state image display element constituting the solid-state image display element 85 is mounted on the upper surface of the ring-shaped support member 100. A substrate 85a on the periphery of the bottom of 85 is placed. A ring-shaped spacer 101 is placed on the upper surface of the substrate 85a, and a transparent protective cover 102 is provided so as to cover the upper surface of the solid-state image display element 85 and the upper surface of the spacer 101.
Is provided. A tightening ring 103 having an inward flange is screwed onto the outer periphery of the rear end of the housing 92, and the protective cover 102 is fixed by being sandwiched between the inward flange of the tightening ring 103 and the spacer 101. In addition, the substrate 85a is sandwiched and fixed between the spacer 101 and the ring-shaped support member 100.

When performing an inspection using the endoscope device 80 of the present embodiment, the battery type light source 7 is connected to the light guide cap 5 of the endoscope 80A, as in the first embodiment. .

When the battery type light source 7 is completely connected to the light guide cap 5 of the endoscope 80A, the power source connecting terminal 32 and the power source connecting terminal 33 are electrically connected to each other, and the power source connecting terminal 35 of the eyepiece 5 and the battery are connected. It will be in the state electrically connected with 19.

Subsequently, when the lamp lighting switch 21 is turned to the ON side, a current flows from the battery 19 to the light source lamp 17, and the light source lamp 17 is turned on. The illumination light emitted from the light source lamp 17 is condensed by the condenser lens 27 and is incident on the light incident end face 24 of the light guide fiber 23. The illumination light incident on the light incident end surface 24 of the light guide fiber 23 is guided to the light guide fiber 23,
The light is emitted from the light emitting end surface of the light guide fiber 23 at the distal end portion 8 to illuminate a test portion such as an affected area.

The illuminated object image of the subject is the tip 8
Image guide fiber 3 through the objective lens 29 inside
The light enters the 0-incidence end face and is guided to the eyepiece section 5 by the image guide fiber 30.
The operator can visually observe the subject image via the.

Here, in the case of observing this subject image by a plurality of people, for example, the observation device 81 is connected to the eyepiece unit 5 by the bayonet. As a result, the power supply connection terminal 35 of the eyepiece 5 and the power supply connection terminal 86 of the observation device 81 come into contact with each other, and the current from the battery 19 is supplied to the power supply line 87 of the observation device 81. Here, when the power switch (not shown) of the observation device 81 is closed, the power from the battery 19 is supplied from the battery 19 as the power connection terminal 25a → the power connection terminal 25b → the power line 26 → the power connection terminal 32 → the power connection terminal 33 → the power line 34 → It is supplied to the observing device 81 through a route of the power supply connection terminal 35 → the power supply connection terminal 86 → the power supply line 87.

Battery 1 supplied to this observation device 81
The power of 9 is supplied to each circuit device such as the solid-state image sensor 82, the solid-state image sensor control circuit 83, the display element control circuit 84, and the solid-state image display element 85 in the observation device 81.

The subject image projected on the light receiving portion 95 of the solid-state image pickup device 82 through the eyepiece lens 31 is photoelectrically converted into a charge signal by the solid-state image pickup device 82, and this solid-state image pickup device 8
A large number of line signals forming an image for each frame are sequentially taken out from the solid-state image pickup device 82 via the signal line 97 by the solid-state image pickup device control circuit 83 for controlling 2 and the signal line 98 is provided to the display element control circuit 85. Supplied through. The signal output from the display element control circuit 85 is supplied to the solid-state image display element 85 which is controlled and driven by the display element control circuit 84 through the signal line 99, and the test portion on the solid-state image display element 85 is tested. The image of the subject is displayed after being converted into the image of.

As a result, the subject image of the subject is reproduced as a sufficiently bright and clear image on the solid-state image display element 85,
The display area of the solid-state image display element 85 in which this image is reproduced is relatively large, and unlike the case of observing through the eyepiece section 5, a large number of people can perform a viewing observation.

(Third Embodiment) FIGS. 8 and 9 relate to a third embodiment of the present invention. FIG. 8 is an explanatory view showing the entire structure of the endoscope apparatus, and FIG. It is explanatory drawing explaining the internal structure of the whole endoscope apparatus. The same components as those in FIGS. 1 and 2 are designated by the same reference numerals in the following description.

In the first and second embodiments, the optical endoscope in which the subject image of the subject is incident on the image guide fiber 30 having the incident end face in the insertion portion 2 and is guided to the eyepiece 5. Although the apparatus has been described, the present embodiment describes an electronic endoscope apparatus in which a solid-state image sensor is provided in the endoscope insertion portion 2 and is displayed on a display unit such as a monitor installed outside.

As shown in FIG. 8, the endoscope device 110 of the present embodiment is an electronic endoscope having a solid-state image sensor 111 (see FIG. 9) on the distal end side of the elongated insertion portion 2. An endoscope (hereinafter referred to as an endoscope) 110A, a battery-type light source 7 that is detachably connected to the operation unit 4 of the endoscope 110A and has the same structure as that of the first embodiment, and the endoscope The cable 11 can be detachably attached to a connecting portion 112 formed at the rear end of the operating portion 4 of the mirror 110A, and the cable 11 can be attached to a display means such as a monitor (not shown).
The video circuit device 113 is connected via 3a.

The endoscope 110A has a light guide base 3 and a video circuit device 1 for removably connecting the battery type light source 7 and having a structure similar to that of the first embodiment.
The operation section 4 is formed with a connection section 112 for detachably connecting 13 and the insertion section 2 that is connected to the operation section 4 and has the solid-state imaging device 111.

The light guide base 3 is provided with a power supply connection terminal 33 for receiving power from the battery-type light source 7, and the power supply line 34 connected to the power supply connection terminal 33 is connected to the connection. It is electrically connected to the power supply connection terminal 35 a arranged in the section 112, the signal processing circuit 113, and the solid-state image sensor 111.

A light incident end face side of a light guide fiber 23 for guiding illumination light is fixed to the light guide base 3, and a tip located at the tip of the insertion part 2 through the operation part 4 and the insertion part 2. The other end is fixed to the portion 8, and the illumination light is emitted from the tip portion 8 toward the test portion.

Further, at the tip portion 8, an objective lens 29 for forming a subject image from the subject portion irradiated with the illumination light.
A solid-state image pickup device 111 of CCD type or MOS type, which is arranged at the image forming position of the objective lens 29 and is for picking up a subject image of a subject, is provided. Behind the solid-state image sensor 111, a signal processing circuit 114 including a drive circuit for driving the solid-state image sensor 111 and a preamplifier.
Is provided. If necessary, the objective lens 2
An optical system for adjusting the imaging position may be provided on the optical path between the solid-state image sensor 111 and the solid-state image sensor 111.

The solid-state image sensor 111 has a signal line 115.
It is driven by the signal processing circuit 114 via the, and photoelectrically converts the incident subject image. The signal processing circuit 114
Supplies a clock signal from a video circuit device 113, which will be described later, to the solid-state imaging device 111, and performs signal processing on the photoelectrically converted signal to generate a video signal. The signal lines 116a and 11 extending from the rear of the signal processing circuit 114
6b is a signal connection terminal 117a, 117b which is inserted through the insertion portion 2 and the operation portion 4 and has the other end provided on the connection portion 112.
Electrically connected to.

The video circuit device 113 mounted on the connection portion 112 at the rear end of the operation portion 5 is in a position where it abuts on the signal connection terminals 117a, 117b and the power supply connection terminal 35a when connected to the connection portion 112. And signal connection terminals 118a and 118b and a power supply connection terminal 118c, respectively.

The video circuit device 113 has a video processor 119 for converting the video signal from the signal processing circuit 114 into a composite video signal, an oscillator 120 for sending a clock signal to the signal processing circuit 114, and the like. It is configured.

The video processor 119 is connected to the signal line 121 extending from the signal connection terminal 118a, and the oscillator 120 is connected to the signal line 122 extending from the signal connection terminal 118b. The video processor 119 and the oscillator 120 are connected to a power supply line 123 extending from the signal connection terminal 118c, and the power from the battery 19 is connected to the power supply connection terminal 118c and the power supply connection terminal 118c. The video processor 119 via the power line 123
And the transmitter 120.

The video signal signal-processed by the signal processing circuit 114 is transmitted to the signal connection terminal 117a via the signal line 116a, and when the video circuit device 113 is connected to the connection portion 112, this signal is transmitted. Connection terminal 117
a to the signal line 12 from the signal connection terminal 118a that abuts against
1 to the video processor 119.

On the other hand, the clock signal from the oscillator 120 is transmitted through the signal line 122 to the signal connection terminal 118b.
When the video circuit device 113 is connected to the connection portion 112, the signal connection terminal 117b abutting against the signal connection terminal 118b is transmitted to the signal processing circuit 114 via the signal line 116b. ing.

When performing an inspection using the endoscope device 110 of the present embodiment, the battery type light source 7 is connected to the light guide base 5 of the endoscope 110A, as in the first embodiment. . Next, the video circuit device 113 is detachably attached to the connecting portion 112 of the endoscope 110A. As a result, the light source lamp 17, the solid-state image sensor 111, and the signal processing circuit 11
4 and the video circuit device 113 are supplied with power supply voltage from the battery 19 of the battery type light source 7.

Then, the endoscope apparatus 1 configured as described above.
When the inspection is performed using 10, the subject image formed on the solid-state image sensor 111 via the objective lens 29 at the tip 2 is photoelectrically converted by the solid-state image sensor 111. The signal processing circuit 114 supplies the clock signal sent from the oscillator 120 in the video circuit device 113 to the solid-state image sensor 111, amplifies the photoelectric conversion signal from the solid-state image sensor 111, and generates a video signal. This video signal passes through the inside of the insertion section 2 and the operation section 4 and the endoscope 11
It is sent to the video processor 119 in the video circuit device 113 attached to the 0A connection part 112, and the video processor 11
At 9, this video signal is converted into a composite video signal. The converted composite video signal is displayed by a display device such as a monitor installed externally via a cable 113a provided on the top of the video circuit device 113, so that a subject image of a subject can be observed. it can.

As a result, even in a place where it is difficult to receive power from the outside such as a commercial power source, the subject image of the subject can be recorded or observed, and there is a display means such as a monitor (television). The effect that endoscopic observation can be easily performed in a place such as a patient's room is obtained.

[Additional Notes] (Additional Item 1) An endoscope having a light guide fiber for illuminating a portion to be inspected, a lamp for supplying illumination light to the light guide fiber, and a battery as a power source of the lamp are included. And a battery type light source device detachably attachable to the endoscope, wherein the battery is a driving power source for a camera detachably attached to the endoscope. A characteristic endoscopic device.

(Additional Item 2) An endoscope having a light guide fiber for illuminating a portion to be inspected, a lamp for supplying illumination light to the light guide fiber, and a battery as a power source of the lamp are provided. An endoscope apparatus having a battery-type light source device detachably attachable to an endoscope, wherein the battery is a driving power source for an imaging device arranged at a distal end portion of the endoscope. Endoscope device.

(Supplementary Note 3) A light guide fiber for illuminating a portion to be inspected and an object image from the portion to be inspected illuminated with the illumination light emitted from the light emitting end face of the light guide fiber are incident and guided. An endoscope having an image guide fiber, a lamp that supplies illumination light to the light guide fiber, and a battery that is a power source of the lamp, and is detachably attached to an operation unit for gripping the endoscope. In an endoscope apparatus having a possible battery-type light source device, a solid-state image sensor for photoelectrically converting a subject image from the image guide fiber, a solid-state image sensor control circuit for signal-processing a signal of the solid-state image sensor, An image pickup device including a display unit for displaying a video signal from the signal processing circuit is detachably attached to an eyepiece formed on the upper portion of the operation unit. An endoscope apparatus, characterized in that the power source power of the battery is supplied to the apparatus.

(Supplementary Note 4) The image pickup device is attached to an endoscope eyepiece portion which guides a subject image of a portion to be examined to an eyepiece lens by an image fiber bundle, and forms an image by the eyepiece lens. The endoscope apparatus according to Additional Item 1, wherein the endoscope apparatus is a camera including a solid-state image pickup element that picks up an image of an inspection section.

(Additional Item 5) The image pickup device is a camera for winding up a film by a motor attached to an endoscope eyepiece portion which guides a subject image of a subject portion to an eyepiece lens by an image fiber bundle. The endoscope apparatus according to Additional Item 1, wherein:

(Additional Item 6) The endoscope apparatus according to Additional Item 5, wherein the motor is connected to a battery of a battery type light source.

(Additional Item 7) The endoscope device according to Additional Item 2, wherein the image pickup device is an image pickup circuit including a solid-state image pickup element provided at the tip of the insertion portion of the endoscope. .

[0091]

As described above, according to the present invention, it is possible to record or observe a subject image of a subject portion even in a place where it is difficult to receive power from an external source such as a commercial power source.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an external appearance of an entire endoscope apparatus according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an internal configuration of the entire endoscope apparatus in FIG.

FIG. 3 is a cross-sectional view showing a structure of a connection portion of each of the endoscope and the light source device in FIG.

FIG. 4 is a cross-sectional view showing the structure in a state where the endoscope and the light source device in FIG. 1 are connected.

5 is a circuit block diagram for driving an endoscope camera detachably attached to an eyepiece portion of the endoscope in FIG.

FIG. 6 is an explanatory diagram showing an internal configuration of an entire endoscope apparatus according to a second embodiment of the present invention.

7 is an explanatory diagram illustrating an internal configuration of an observation device detachably attached to an eyepiece portion of the endoscope in FIG.

FIG. 8 is an explanatory diagram showing a configuration of an entire endoscope apparatus according to a third embodiment of the present invention.

9 is an explanatory diagram illustrating an internal configuration of the entire endoscope apparatus in FIG.

[Explanation of symbols]

1,80 ... Endoscopic device (optical endoscopic device) 1A, 80A ... Endoscope (optical endoscope) 3… Light guide base 4 ... Operation part 5 ... Eyepiece 6 ... Camera (Camera for endoscope) 7 ... Battery type light source 39 ... Detecting means 40 ... Electric control device 81 ... Observation device 82, 111 ... Solid-state image sensor 83 ... Signal processing circuit 110 ... Endoscopic device (electronic endoscopic device) 110A ... Endoscope (electronic endoscope) 112 ... Connection part 113 ... Video circuit device

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsushi Watanabe 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Inventor Takashi Suzuki 2-43 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Inventor Seiichi Hosoda 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Inventor Masaaki Nakazawa 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (56) Reference JP 10-165362 (JP, A) JP 9-292575 (JP, A) JP 10-211169 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) G02B 23/26 A61B 1/00 300 A61B 1/06 G02B 23/24

Claims (3)

(57) [Claims] 1. An endoscope capable of observing a subject, a light source for supplying illumination light to the subject , and a power source for the light source.
It can be detachably attached to the endoscope with the battery
In the endoscope apparatus having a capacity battery type light source device, and is provided in the battery-type light source device the battery-type light source instrumentation
Electrical connection with the battery to supply power to the outside of the unit.
And a first connection terminal that can be connected to the first connection terminal when the battery-type light source device is mounted.
At the first position of the endoscope that can be electrically connected to the connection terminal
A second connection terminal provided and the second connection terminal provided at a second position of the endoscope.
Electrically connected to the second connection terminal and the first connection
The electric power of the battery supplied via the terminal
An endoscope apparatus comprising: a third connection terminal that can be supplied to the outside of the endoscope. 2. A ride guide fan for illuminating an inspected part.
An image guide that guides the image of the subject from the bar and the subject.
An endoscope having a guide fiber, a lamp for supplying illumination light to the ride guide fiber, and
And an endoscope having a battery as a power source of the lamp
And a battery-type light source device detachably attachable to the battery device, wherein the battery device is provided in the battery-type light source device.
A first connection capable of supplying electric power to the outside of the battery type light source device.
The connection terminal and the first contact when the battery type light source device is mounted.
At the first position of the endoscope that can be electrically connected to the connection terminal
The second connection terminal provided and the second connection terminal provided at a second position of the endoscope
A third connecting terminal electrically connected to the image guide fiber, and the part to be inspected guided from the image guide fiber.
Detachably attached to the third position of the endoscope capable of imaging
It is possible to electrically connect with the third connection terminal when mounted.
Connected and electrically connected to the battery via the endoscope
However, it is operated by the power supplied from the battery.
An endoscope apparatus comprising: an image device . 3. A light guide fan for illuminating an inspected part.
An image guide that guides the image of the subject from the bar and the subject.
An endoscope having an optical fiber, a lamp for supplying illumination light to the light guide fiber, and
And an endoscope having a battery as a power source of the lamp
And a battery-type light source device detachably attachable to the battery device, the power of the battery being provided in the battery-type light source device.
For supplying the light to the outside of the battery type light source device
Of the power source and the battery-type light source device provided on the endoscope.
Receiving power supplied from the power supply unit when
Section and power supplied to the power receiving section provided in the endoscope
Second power supply unit for supplying the outside of the endoscope
And the part to be inspected guided from the image guide fiber
Detachably attached to a predetermined position of the endoscope capable of imaging
Yes, when installed, via the second power supply
Imaging device that operates by electric power supplied from the battery
The endoscope apparatus characterized by equipped with location, the.