JP2001154120A - Endoscope device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an endoscope device which prevents the accidental flow of a current to a lamp when a storage battery disposed in a battery type light source is charged by using a charger. SOLUTION: This endoscope device includes an endoscope, a lamp 41 which is freely attachable and detachable to and from the endocsope 2 and supplies illumination light to the light incident end of a light guide of the endoscope 2, the battery type light source 3 which has the charging type battery 51 as a power source for lighting the lamp 41 and the charger for charging the charging type battery 51 of the battery type light source 3. The endoscope device described above is so constituted that the charging type battery 51 and a charging section of a charging hanger 60 for the charger are connected in a charging state only in the state that the lamp 41 is put out.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope apparatus in which a light source is turned on by a secondary battery to perform endoscopic observation.

[0002]

2. Description of the Related Art An endoscope, which has been widely used in the medical and industrial fields, needs to illuminate a target site because a target site for diagnosis or inspection is located inside a living body or a plant. For this reason, in a general endoscope, a light source device is prepared as an external device of the endoscope, and light emitted from a lamp in the light source device is guided to a light guide fiber provided in the endoscope. Illumination light guided by the guide fiber is emitted from an illumination window at the distal end of the insertion section to illuminate a diagnosis or inspection target site.

[0003] The endoscope light source device generally turns on a lamp inside the light source device using a power supply supplied from a commercial power supply.

On the other hand, for example, Japanese Patent Laid-Open No.
No. 3 and Japanese Patent Application No. 11-486, which has not been published yet.
No. 69 proposes an endoscope in which a battery type light source device using a dry battery or a storage battery as a power source is detachably attached to an endoscope operation unit. Such an endoscope to which the battery-type light source device is attached is easy to carry and can be used in a place without a commercial power supply, so that it is suitable for emergency use.

[0005]

As described above, the rechargeable battery-type light source is repeatedly used by performing a charging operation by connecting to a dedicated charger using a storage battery.

However, the operation of the lighting switch section for electrically connecting the storage battery and the lamp and the operation of charging the storage battery are independent of each other, and the charging operation is performed while the lamp is lit (ie, electrically connected to the storage battery). The charging current from the charger will flow to the lamp side, causing a failure such as lamp burnout, or forgetting to switch the charging circuit that connects the charger and the storage battery even though it is connected to the charger In some cases, charging was not performed.

(Object of the Invention) The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a method for charging a storage battery provided inside a battery-type light source using a charger. It is an object of the present invention to provide an endoscope apparatus which prevents a current from flowing to a lamp by mistake.

[0008]

In order to achieve the above object, the present invention provides an endoscope having light guide means for guiding illumination light, and a light source which is detachably attached to the endoscope. A battery-type light source having a lamp for emitting illumination light to be supplied to the light-incident end of the guide means and a rechargeable battery as a power source for lighting the lamp; and a battery for charging the rechargeable battery of the battery-type light source. An endoscope apparatus comprising a charging device having a charging means, wherein the rechargeable battery and the charging means are connected in a chargeable state only when the lamp is turned off. Things.

For example, when a charging operation is performed, a switch for turning on / off the lamp is set to a light-off position so that a charging current does not flow to the illumination lamp due to a mishandling.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] An endoscope apparatus according to a first embodiment of the present invention will be described with reference to FIGS.

(Structure) FIG. 1 is a perspective view showing the entire endoscope apparatus, FIG. 2 is an external view of an operation section of the endoscope and a small light source apparatus,
FIG. 3 is an explanatory view of a schematic circuit configuration of the endoscope apparatus, FIG. 4 is a perspective view of the endoscope apparatus and a charging hanger to which the endoscope apparatus is mounted, and FIG. FIG. 6 is an explanatory view of a mode in which the mirror device is mounted on a charging hanger, and FIG. 6 is a detailed view of a charging contact portion of the small light source device.

As shown in FIG. 1, the endoscope apparatus 1 includes an endoscope (endoscope main body) 2 and a small battery type light source device 3. The endoscope 2 includes a distal end portion 5, a bendable bending portion 6, and a flexible portion 7 having flexibility in this order from the distal end side.
And an operating section 9 connected to a base end of the inserting section 8.

An eyepiece 10 is provided at the end of the operation unit 9. A light guide base 11 for connecting the battery type light source device 3 is provided on a side portion of the operation unit 9. Further, a forceps insertion opening 12, a bending knob 13, a suction base 14, and the like are provided on a side portion of the operation unit 9. A forceps stopper 15 is attached to the forceps insertion port 12. By rotating the bending knob 13 provided in the operation unit 9, the bending unit 6 of the insertion unit 8 is rotated.
Can be bent in a desired direction.

An image guide fiber (not shown) for transmitting an image is inserted into the insertion section 8. The tip of the image guide fiber is fixed to a position facing an observation window (not shown) of the tip 5 together with the objective lens. The rear end portion of the image guide fiber is fixed to an image forming position of an eyepiece (not shown) built in the eyepiece 10.

As shown in FIG. 3, a light guide fiber 16 for transmitting irradiation light is inserted through the inside of the insertion section 8 and the operation section 9, and the tip of the light guide fiber 16 is connected to the tip 5. Fixed to the lighting window 1
7. The other end of the light guide fiber 16 is fixed to the light guide base 11 provided on the operation unit 9.

The illumination light from the battery type light source device 3 is emitted from the illumination window 17 of the distal end portion 5 through the light guide fiber 16.

A channel (not shown) is formed in the inside of the insertion portion 8 and the operation portion 9, and the front end of the channel is fixed to the front end portion 5 and opened. The other end of the channel is connected to a suction base 14 provided on the operation unit 9. This channel is used in combination with a suction device (not shown) to suck foreign matter or to insert a treatment tool for an endoscope (not shown).

As shown in FIG. 2, a cylindrical connection base 2 is provided around a light guide base 11 provided on a side surface of the operation section 9.
1 are arranged coaxially. On the outer periphery of the connection base 21, a male screw portion 23 with which the connection ring 22 of the battery type light source device 3 is screwed is formed. A pin receiver 25 for fitting and engaging a positioning pin 24 of the battery-type light source device 3 is formed at a distal end edge of the cylindrical connection base 21. Thus, the operation unit 9 of the endoscope 2 is provided to the battery type light source device 3.
Constitute a connection portion 26 which can be detachably positioned and connected. In addition, an index 27a is provided at a portion near the pin receiver 25.
Is attached.

The mounting portion 3 fitted to the light guide base 11 and fitted to the cylindrical connection base 21 is attached to the case main body (small light source main body) 30 of the battery type light source device 3.
1 is provided. The mounting portion 31 has a cylindrical mounting portion main body 32, and an index 27b for mounting positioning is attached to a tip edge of the mounting portion main body 32, and the positioning pin 24 is provided at a position corresponding to the index 27b. Have been.

A groove 34 is formed on the outer periphery of the cylindrical mounting portion main body 32 for fitting an O-ring 33 which is pressed against and contacts the inner periphery of the connection mouthpiece 21 into which the fitting body 32 is fitted. Further, the connection ring 22 is rotatably provided on the outer periphery of the cylindrical mounting portion main body 32. The connecting ring 22 is fitted in a groove 35 formed on the outer periphery of the mounting portion main body 32, and is not only rotatable but also movable in the axial direction within the width of the groove 35. On the inner periphery of the connection ring 22, a female screw portion 36 screwed to the male screw portion 23 of the connection mouthpiece 21 on the endoscope side is provided.
Are formed.

As shown in FIG. 2, the battery type light source device 3 is roughly divided into an attachment portion 31 for attaching and detaching to and from the operation portion 9 of the endoscope 2, a battery storage portion 37, and a battery remaining amount display portion. And a lamp housing 39, and the whole is watertight. The mounting portion 31 and the lamp housing portion 39 formed by the lower portion of the case main body 30 are coaxially arranged in the front-rear direction, and are formed in a substantially V-shape as shown in FIG.

A lamp 41 is provided in the lamp housing 39. An openable / closable lamp lid 42 is provided at the rear of the lamp housing 39. The lamp 41 can be attached and detached by opening and closing the lamp lid 42. As shown in FIG. 3, a condensing lens 43 for condensing the illumination light on the incident end of the light guide fiber 16 of the endoscope 2 is provided on the light emitting side of the lamp 41.

A charging contact portion 45 serving as a contact point with a charger to be described later is exposed on both left and right sides of the lamp housing portion 39 located at a lower portion of the case main body 30.

The battery housing 37 has a built-in rechargeable battery 51 serving as a power source for the lamp 41. Lamp 4
The circuit including the battery 1 and the rechargeable battery 51 has a configuration as shown in FIG. 3, and the circuit is provided with a switch 52 that can be set to two states. When the switch 52 shown in FIG. 3 is in the ON position, a circuit for supplying power from the rechargeable battery 51 to the lamp 41 is formed.
Lights up. When the switch 52 is in the OFF operation position, the circuit for supplying power from the rechargeable battery 51 to the lamp 41 is in an open state, the lamp 41 is turned off, and the rechargeable battery 51 is connected to the charging contact portion 45. Then, it is in a state of waiting for charging.

The switch 52 is switched by rotating the case body 30 about the axis of the light guide base 11 of the operation unit 9 in a state where the battery type light source device 3 is attached to the operation unit 9 of the endoscope 2. It is done by that. In this switch switching mechanism, a bearing hole 53 is formed in a front wall of the case main body 30, and the mounting portion main body 3 is formed in the bearing hole 53.
2, the case main body 30 is rotatably supported on the mounting portion 31 and the case main body 30 is parallel to the eyepiece 10 of the endoscope 2 as shown by a solid line in FIG. The lamp 41 is turned off in the upright position, and the case body 30 is connected to the endoscope 2 as shown by a dotted line in FIG.
The lamp 41 is turned on at the falling position orthogonal to the eyepiece 10.

Further, in the switching operation of the switch 52 performed by lowering the case body 30 of the battery type light source device 3, the turning on and off of the case body 30 that falls is performed.
The positions of the FFs are respectively regulated by stopper means (not shown).

On the other hand, the charging contact portion 45 is provided with one contact on each of the slopes on both sides of the lamp accommodating portion 39, and each contact is provided separately. When the switch 52 is
In the state of the FF, one of the contacts is a rechargeable battery 51.
And the other contact is electrically connected to the negative electrode. That is, as shown by the solid line in FIG.
0 is electrically connected to the rechargeable battery 51 only at a standing position parallel to the eyepiece 10 of the endoscope 2.

The endoscope device 1 is moored to a charging hanger 60 with the battery type light source device 3 connected to the endoscope 2, and the rechargeable battery 51 is charged in this moored state.

The charging hanger 60 is a charging device (charger) constituting charging means for charging the rechargeable battery 51 of the battery type light source device 3. In the present embodiment, the charging hanger 60 is configured as shown in FIG. I have. The charging hanger 60 includes a hook portion 61 for mounting and holding the case body 30 of the battery-type light source device 3, and a support column 62 to which the hook portion 61 is attached. The support column 62 may have a stand-type foot 63 as shown in FIG. 4, or may be appropriately changed depending on the use, such as a wall-mount type.

The hook portion 61 has a support piece 65 having a concave holding portion 64 capable of engaging and holding the lower portion of the main body case 30 of the battery type light source device 3 only when the lamp 41 is in the OFF state. It has a restriction piece 66 arranged in parallel with the support piece 65 at an interval. The holding portion 64 is formed in a shape that is cut out in a rounded substantially V-shape to match the shape of the lower bottom portion when the case body 30 is raised. Therefore, the holding portion 64 can hold and hold the lower portion of the case main body 30 only when the case main body 30 of the battery-type light source device 3 is erected, but when the case main body 30 is folded down, the side surface of the case main body 30 interferes. The concave holding portion 64
The lower part of the case main body 30 cannot be fitted and placed inside.

The restricting piece 66 restricts the mounting position when the operation section 9 of the endoscope 2 is mounted on the hook section 61.

When the case main body 30 of the battery type light source device 3 is fitted on the holding surface of the holding portion 64, the power supply portion 67 is positioned so as to face the charging contact portion 45.
Is provided. As shown in FIG. 6, the power supply section 67 is provided with a conductive power supply pin 68 at a protruding end protruding in a hook shape. The power supply pin 68 is connected to a conductive cable 69 that passes through the hook portion 61 and the support column 62 and passes therethrough. The conductive cable 69 is connected to an outlet 70 connectable to a commercial power supply via a charging circuit and a transformer (not shown).

Referring to FIG. 6, a detailed configuration of the charging contact portion 45 of the battery type light source device 3 will be described. FIG.
6A shows a state of the charging contact portion 45 when the endoscope 2 is removed from the charging hanger 60, and FIG. 6B shows a state of the charging contact portion 45 when the endoscope 2 is mounted on the charging hanger 60. Indicates the status.

As shown in FIG. 6, the charging contact portion 45 is provided on the exterior member 39a of the lamp housing portion 39 made of an electrically insulating member.
A contact pin 72 made of a conductive material slidably provided in a mounting hole 71 formed in the contact hole; a coil spring 73 for urging the contact pin 72 outward;
A packing member 75 which is mounted on the contact pin 72 at the outer end side adjacent to the flange portion 74 and which seals between the contact pin 72 and the exterior member 39a in a watertight manner by the urging force of the coil spring 73; And an elastically deformable conductive contact leaf spring 76 disposed adjacent to the hole for accommodating the contact pin 72. Contact leaf spring 7
6 is electrically connected to the rechargeable battery 51.

The coil spring 73 is provided between the flange portion 74 of the contact pin 72 and a spring receiver 77 provided on the inner end side. The spring receiver 77 is made of an electrically insulating member, and has an insertion hole 78 through which the inner end of the contact pin 72 penetrates.

The exterior member 3 of the lamp housing 39
The outer end side opening portion of the mounting hole 71 facing the outer surface of 9a is formed as a large-diameter concave portion 79, and the outer end opening portion of the mounting hole 71 is largely open.

In the state shown in FIG. 6A in which the battery type light source device 3 is removed from the charging hanger 60, the outer end portion of the contact pin 72 protrudes outward into the recess 79 by the coil spring 73. The protruding outer end is recess 7
9 so as not to protrude outside the outer surface of the exterior member 39a. Therefore, when handling the endoscope 2 and the battery type light source device 3, the contact pins 7
There is no risk of accidentally touching 2.

In the state shown in FIG. 6A, the contact pins 72
Is retracted into the insertion hole 78 of the spring receiver 77, while the contact leaf spring 76 is joined to the back surface of the spring receiver 77, and both the contact pin 72 and the contact leaf spring 76 They are separated and are not electrically conductive.

On the other hand, when the case main body 30 of the battery-type light source device 3 is set up and held by the hook 61 of the charging hanger 60, the charging contact 4 as shown in FIG.
5 hits the contact pin 72 and pushes the contact pin 72. Then, the charging contact portion 45 is electrically connected to the contact pin 72, and the contact pin 72 is pushed over the spring support 77 and contacts the contact leaf spring 76 on the back surface to be electrically connected, so that the contact pin 72 is in contact with the contact pin 72. The plate spring 76 is electrically connected to the plate spring 76.

The battery level indicator 38 is disposed on the outer surface of the battery compartment 37, and displays the level of the battery level by a plurality of light emitting elements 81 as shown in FIG. The display of the remaining amount display illuminant 81 is started when the lamp 41 is turned on by a voltage detection circuit and a display circuit (not shown).

It should be noted that the remaining amount display illuminant 81 may be displayed by changing the number of illuminants to be lit or by changing the brightness or color or the color according to the change in the battery voltage. Further, a chart 82 such as a level meter may be arranged on the outer surface of the battery housing portion 37 to clarify the display of the remaining amount indicating light emitting body 81.

(Operation) When using the endoscope apparatus 1, first, the battery type light source apparatus 3 is connected to the light guide base 11 in the operation section 9 of the endoscope 2. That is, the cylindrical mounting portion 3 of the battery-type light source device 3 is attached to the light guide base 11.
1 and pushed in so as to fit into the connection base 21. At this time, the attachment portions 31 of the battery-type light source device 3 are adjusted so that the indices 27a and 27b are aligned.
Pin 24 disposed on the endoscope 2 and the connection base 2 of the endoscope 2
1 is engaged with the pin receiver 25 disposed therein. Therefore, the connection position between the two is uniquely determined. And the connection base 21
The connection ring 22 of the battery-type light source device 3 is screwed into a male screw portion 23 on the outer periphery of the battery-type light source device 3 so that the battery-type light source device 3 is connected and fixed to the operation unit 9 of the endoscope 2.

Therefore, when observing with the endoscope 2, FIG.
As shown by the broken line, the case body 30 of the battery-type light source device 3 is turned down, and the switch 52 is turned on to turn on the lamp 41.

After the observation is completed or during use, when the remaining amount of the rechargeable battery 51 becomes small, as shown by a solid line in FIG.
The lamp 41 is turned off by setting “0” in a direction parallel to the eyepiece 10 of the endoscope 2 and setting the switch 52 to the off position. Subsequently, the lower part of the battery-type light source device 3 connected to the endoscope 2 is hung on the hook portion 61 of the charging hanger 60.

Then, as shown in FIG. 5, the charging contact portion 45 of the battery type light source device 3 and the power supply portion 6 of the hook portion 61 are provided.
7 uniquely oppose each other, and as shown in FIG. 6B, the power supply pin 68 is engaged in the concave portion 79 of the battery-type light source device 3.
Further, the contact pin 72 is pushed up by the weight of the endoscope 2 and the battery-type light source device 3 itself, and the rear end of the contact pin 72 contacts the leaf spring 76. At this time, a charging current is supplied from the power supply pin 68 to the rechargeable battery 51 through the contact pin 72 and the leaf spring 76.

The charging of the rechargeable battery 51 is controlled by a charging circuit (not shown), the charging state is automatically detected, and the power supply is stopped when the charging is completed.

(Effect) According to the configuration of the present embodiment, a circuit between the charging contact portion 45 and the rechargeable battery 51 is not formed when the lamp is turned on. Therefore, even if the charging contact portion 45 has an external electrical contact, no external current flows into the lamp 41 and the rechargeable battery 51, and conversely, no current leaks from the rechargeable battery 51 to the outside.

The lamp 41 is turned off (the rechargeable battery 51 is turned off).
Rechargeable battery 5 in conjunction with
A charging circuit to 1 is configured. Therefore, the charging current does not flow into the lamp 41 by mistake and the lamp does not run out.

In addition, the lamp 4 of the battery type light source device 3
The endoscope device 1 cannot be hung on the charging hanger 60 unless the lighting device 1 is turned off (standby for charging). In other words, since the charging operation is always performed normally when the charging hanger 60 is hung, it is possible to prevent the worker from forgetting to charge due to mishandling.

When the endoscope device 1 is detached from the charging hanger 60, the electrical connection between the contact pin 72 and the leaf spring 76 is automatically cut off. Further, since the electrical continuity is cut off, the contact pin 72 is used when the used endoscope device 1 is immersed in the disinfecting solution.
There is no leakage through

Since the contact pins 72 are drawn into the concave portions 79, they are not easily touched. For this reason, external electrical contact can be prevented, and as a result, leakage is prevented.

By arranging the two charging contact portions 45 apart on both sides of the lamp housing portion 39, it is possible to prevent electrical contact with both poles at the same time, and to more reliably prevent leakage.

[Second Embodiment] An endoscope apparatus according to a second embodiment of the present invention will be described with reference to FIGS.

(Structure) FIG. 7 is an overall view of the small light source device of the second embodiment and various charging modes thereof, FIG. 8 is a side view showing the appearance of a circuit changeover switch of the small light source device, and FIG. FIG. 2 is an explanatory diagram of a schematic circuit configuration of the device.

As shown in FIG. 7, the small light source device 90 of the present embodiment is, like the first embodiment, attached to the lower front end of the case main body (small light source device main body) 30 in the same shape as the first embodiment. The mounting portion 31 is detachable from the light guide base 11 in the operation portion 9 of the endoscope 2.

As in the first embodiment, the case body 30 has a lamp housing 39 for housing the lamp 41, a battery housing 37 for housing the rechargeable battery 51, and the battery housing 3 as described above.
7, a battery remaining amount display section 38 provided on one side surface is provided, and their arrangement is substantially the same as that of the first embodiment.

Attachment part 3 in the small light source device 90
A switch button 92 for a button-operated switch 91 for opening and closing a circuit for turning on the lamp 41 and opening and closing a charging circuit is provided on the opposite side wall portion of the switch 1. Switch button 9
At the end of 2, a slope 101 is formed to abut on the button receiving portion 98 and to push the switch button 92 when attached to the storage type charging adapter 95.

The circuit of the switch 91 is switched according to the pressed position of the switch button 92. That is, as shown in FIG. 8, the lamp 41 and the charging circuit are set to be open when the switch button 92 is in the most protruding state.

The switch button 92 protrudes OFF.
When the switch button 92 is pushed down to the end position where the switch button 92 abuts, the charging contact portion 93 provided on the lower surface of the lamp housing 39 and the rechargeable battery 51 inside the light source device enter a charging standby state in which the rechargeable battery 51 is electrically connected. The power supply circuit to 41 is cut off.

When the pressing of the switch button 92 is stopped, the switch button 92 is returned to the lamp lighting (ON) position shown in FIG. 8 with an elastic force, and the switch button 92 is locked at that position.
This lamp lighting position is located between the OFF position and the charging standby position. The circuit in the lamp lighting position is in a state where the rechargeable battery 51 and the lamp 41 are connected as shown in FIG.

When the switch button 92 is depressed again from this ON position, it goes through the charge standby state as described above and turns OFF.
Return to the position.

On the other hand, the storage type charging adapter 95 has a concave power supply mounting portion 96 for mounting the lower part of the case of the small light source device 90, and the small light source device 90 is mounted on the inner side wall of the power mounting portion 96. An attachment receiving portion 97 for positioning and engaging the portion 31 and a button receiving portion 98 for positioning and engaging the switch button 92 of the small light source device 90 are formed. A power supply contact 99 is provided on the bottom surface of the power supply mounting portion 96 to be in contact with and electrically connected to the charging contact portion 93 of the battery-type light source device 3 when the battery-type light source device 3 is mounted. ing.

The internal dimensions of the light source mounting portion 96 are adjusted to the lower portion of the small light source device 90 fitted therein, and the dimensions from the mounting portion receiving portion 97 to the button receiving portion 98 of the small light source device 90 shown in FIG. The width is substantially equal to the width X when the switch button 92 is pushed to the charging position.

A display unit 102 for detecting and displaying the battery capacity of the rechargeable battery 51 in the small light source device 90 is provided on the outer surface of the rechargeable charging adapter 95. It is possible to monitor the state of charge or check the remaining battery level after use.

Further, a relatively large rechargeable battery 103 and a rechargeable battery 1
A circuit for supplying electric power from 03 to the power supply contact 99 is built in. The rechargeable battery 103 is electrically connected to a charging contact 104 provided on the bottom of the adapter. The rechargeable battery 103 supplies driving power for the display unit 102, while the rechargeable battery 51 in the small light source device 90 is provided.
It can also be used for charging.

A charging adapter 105 is provided separately from the storage type charging adapter 95. This charging adapter 1
05 has a concave light source mounting portion 96 configured in the same manner as the above-mentioned power storage type charging adapter 95, and a mounting portion receiving portion 97 and a button receiving portion 98 are formed on the inner surface thereof. A power supply contact portion 99 is provided. Further, an inlet 106 for taking in power from the outside is provided on the outer surface of the charging adapter 105. The inlet 106 has a commercial power supply cable 111 described later.
And the connector 114 of the vehicle power supply cable 113 can be detachably connected.

The other end of the commercial power supply cable 111 is provided with an AC / DC conversion outlet 115 for converting an AC current into a desired DC current, and the AC / DC conversion outlet 115 is connected to a commercial power source. It has become.

At the other end of the vehicle power supply cable 113, there is provided a vehicle power adapter 116 which can be connected to a cigarette lighter of the vehicle, so that power can be supplied from the battery of the vehicle.

The power from each of the power supply cables 111 and 113 charges the rechargeable battery 118 in the charging adapter 105 and the power supply contact 99 via the power supply contact 99.
6 is also used as electric power for charging the rechargeable battery 51 in the small light source device 90 mounted on the light source device 6.

The lower part of the power storage type charging adapter 95 is formed as a fitting part 117 shaped to be attached to and mounted on the light source mounting part 96 of the charging adapter 105. The power supply contact 104 is provided which is in contact with and electrically connected to the power supply contact 99 of the power supply 105.

(Operation) Rechargeable battery 5 of small light source device 90
When charging 1, the small light source device 90 is detached from the operation unit 9 of the endoscope 2 and attached to the charging adapter 105. Simultaneously with this mounting, the slope 101 at the tip of the switch button 92 comes into contact with the button receiving portion 98, the switch button 92 is pushed to the chargeable position, the lamp 41 turns off, and then the rechargeable battery 51 and the charging contact The contact portion 93 comes into contact, and the charging contact portion 93 and the power supply contact 99 are brought into an electrically conductive state. That is, when the rechargeable battery 51 can be charged, the lamp 41 is not energized.

At this time, if the power from the external power supply is not supplied, the charging current is supplied from the rechargeable battery 118 inside the charging adapter 105 to the charging contact section 93 via the power supply contact 99, and the charging is performed. Charging of the battery 51 is started.

When power is supplied from an external power supply, power is supplied from the external power supply depending on whether the commercial power supply cable 111 or the vehicle power supply cable 113 is connected to the inlet 106. At this time, a rechargeable battery 118 inside the charging adapter 105,
The rechargeable battery 51 inside the small light source device 90 is charged at the same time.

When priority is given to reducing the size and weight of the charging adapter 105, the rechargeable battery 118 does not need to be provided therein.

In any case, the state of charge of the small light source device 90 is displayed on the display unit 102. Since this charge display is also a display of the remaining capacity of the battery, it can be used for checking the capacity of the battery.

On the other hand, when charging is performed in a place where there is no commercial power supply, a power storage type charging adapter 95 is used.
The power storage type charging adapter 95 can be attached to the charging adapter 105 similarly to the small light source device 90, and the internal rechargeable battery 103 is charged in advance using the charging adapter 105. The small light source device 90 is charged by attaching the bottom of the small light source device 90 to the light source mounting portion 96 of the power storage type charging adapter 95. Charging adapter 10
5, the charging contact portion 93 of the small light source device 90 comes into contact with the power supply contact 99 and becomes electrically conductive, and the charging current is changed from the rechargeable battery 103 to the rechargeable battery of the small light source device 90. 51, and charging is performed. The display of the state of charge is performed by the display unit 102.

After the charging is completed, when the small light source device 90 is removed from the power storage type charging adapter 95, the electrical connection between the rechargeable battery 51 and the power supply contact 99 is automatically cut off, and the leakage path to the outside is eliminated.

(Effects) According to the present embodiment, the lamp is turned off at the same time when the battery is mounted on the charger, and then the charging circuit is automatically connected. Prevention of handling mistakes is ensured.

Further, since the charging operation is performed with the small light source device 90 removed from the operation unit 9 of the endoscope 2, the charging device can be made relatively small, and the portability of the entire system is improved. Can be done. In addition, since the remaining battery level can be confirmed by the light source device alone, charge management when preparing a plurality of spare light sources becomes very easy.

Further, since the remaining amount of the battery inside the light source is detected using the power supply from outside the light source device, unnecessary consumption of the battery inside the light source can be suppressed. As a power supply, both a commercial power supply and a storage battery can be used, and the range of application is widened.

The present invention is not limited to the embodiments described above. Further, the configuration in which the rechargeable battery and the charging means are connected in a rechargeable state only when the lamp is turned off is not limited to those of the above-described embodiments,
Various means can be adopted regardless of mechanical and electrical.

According to the description of each of the above embodiments, at least the following items and items obtained by combining any of the items can be obtained.

<Supplementary Notes> An endoscope having light guide means for guiding illumination light, a lamp which is detachably attached to the endoscope and emits illumination light to be supplied to a light incident end of the light guide means, and turns on the lamp An endoscope device comprising a battery-type light source having a rechargeable battery as a power source for charging the battery and a charging device having a charging means for charging the rechargeable battery of the battery-type light source. Wherein the rechargeable battery and the charging means are connected in a chargeable state.

2. The electric connection between the rechargeable battery and the charging means is made only when the switch means for turning on / off the lamp of the battery type light source is set to a light-off position. Endoscope device.

3. 3. The endoscope apparatus according to claim 2, wherein the electrical connection is performed in a state where the battery-type light source is connected to the endoscope.

[0086] 4. 3. The endoscope apparatus according to claim 2, wherein the electrical connection is performed only when the battery-type light source is removed from the endoscope.

5. 2. The endoscope apparatus according to claim 1, wherein the charging means has a rechargeable battery different from the rechargeable battery of the battery type light source.

6. A fifth aspect is characterized in that a charging adapter connected to a commercial power supply can be connected to both the battery type light source and the charging means having the rechargeable battery, and the respective rechargeable batteries are charged. Endoscope device.

[0089]

As described above, according to the present invention, the rechargeable battery and the charging means of the endoscope light source device are electrically connected only when the lamp of the endoscope light source device is turned off. As described above, for example, when the switch for operating the turning on / off of the lamp is not in the light-off position, the rechargeable battery in the light source device for an endoscope is configured not to contact the charging means. It will not flow into the lamp and cause a failure such as burnout of the lamp.

[Brief description of the drawings]

FIG. 1 is an exemplary perspective view showing the entire endoscope apparatus according to a first embodiment;

FIG. 2 is an external view of an operation unit of the endoscope and the small light source device of the endoscope device.

FIG. 3 is an explanatory diagram of a schematic circuit configuration of the endoscope device.

FIG. 4 is a perspective view of the endoscope apparatus and a charging hanger to which the endoscope apparatus is mounted.

FIG. 5 is an explanatory diagram of a form when the endoscope device is mounted on a charging hanger.

FIG. 6 is a detailed view of a charging contact portion of the small light source device of the endoscope device.

FIG. 7 is an overall view of a small light source device according to a second embodiment and various charging forms thereof.

FIG. 8 is a side view showing the appearance of a circuit changeover switch of the small light source device.

FIG. 9 is an explanatory diagram of a schematic circuit configuration of the small light source device.

[Description of Signs] 1 endoscope device, 2 endoscope (endoscope main body), 3 battery-type light source device, 8 insertion section, 9 operation section, 10 eyepiece section, 11 light Guide base, 30: Case body (small light source device body), 31: Mounting part, 37: Battery storage part,
41 ... lamp, 45 ... charging contact part, 51 ... rechargeable battery,
52: switch, 60: charging hanger, 64: holding unit.

Continued on the front page (72) Inventor Hiroshi Takahashi 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inside Olympus Optical Industrial Co., Ltd. (72) Inventor Shoichi Gotanda 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Inside Optical Industry Co., Ltd. (72) Inventor Seiichi Hosoda 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inside Olympus Optical Industries Co., Ltd. (72) Takeaki Nakamura 2-43-2 Hatagaya, Shibuya-ku, Tokyo Ori F term (reference) in Compass Optical Industries, Ltd. 2H040 BA00 CA04 CA07 CA09 CA11 CA27 CA29 DA03 DA14 DA21 DA56 DA57 4C061 AA00 AA29 BB02 CC04 DD03 FF11 FF46 GG01 JJ11

Claims (1)

[Claims] An endoscope having light guide means for guiding illumination light; a lamp which is detachably attached to the endoscope and emits illumination light to be supplied to a light incident end of the light guide means; An endoscope apparatus comprising: a battery-type light source having a rechargeable battery as a power source for lighting the lamp; and a charging device having a charging unit for charging the rechargeable battery of the battery-type light source. An endoscope apparatus wherein the rechargeable battery and the charging means are connected in a chargeable state only when the lamp is turned off.