JP4372915B2 - Endoscope device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an endoscope apparatus that is equipped with a rechargeable power source and is portable.
[0002]
[Prior art]
In recent years, endoscopes are widely used in the medical field and the industrial field. An endoscope requires an illumination means for illuminating a target site because the target site to be observed or inspected is a living body, a pipe in a plant, or the like.
[0003]
In a general endoscope apparatus, a light source device which is an external device is prepared as an illumination means for the endoscope. And the emitted light of the lamp | ramp provided in this light source device is guided to the light guide fiber provided in the endoscope. The emitted light guided to the light guide fiber is transmitted to the distal end side of the insertion portion and emitted from the illumination window toward the target site. The light source device generally emits a lamp using electric power supplied from a commercial power source.
[0004]
On the other hand, for example, Japanese Patent Application Laid-Open No. 10-201710 shows an endoscope configured such that a battery-type light source using a battery such as a dry battery as a power source can be detachably attached to an operation portion of the endoscope. ing. Since this endoscope can be observed by attaching a battery-type light source, it is easy to carry. Moreover, since it can be used in a place without a commercial power source, it is also suitable for use in an emergency.
[0005]
In the endoscope, a light guide cable can be connected instead of the battery-type light source. For this reason, it is possible to connect and use an existing light source device that uses commercial power as an electromotive force. When the electromotive force of a dry cell mounted on a battery type light source decreases, the battery type light source is used as a light guide. If connected to a cable, inspection can be performed continuously.
[0006]
On the other hand, Japanese Patent Application Laid-Open No. 11-9548 discloses a light source, a solid-state image sensor, a signal processing unit that processes an image signal obtained by the solid-state image sensor, a liquid crystal monitor that is detachable from the main body, and a battery power source. A portable electronic endoscope device having excellent portability is provided.
[0007]
[Problems to be solved by the invention]
However, in the endoscope disclosed in Japanese Patent Application Laid-Open No. 10-201710, when the battery runs out, when the inspection is performed using the light source device that is an external device, the battery or the battery having sufficient capacity after the inspection is completed. There was a problem that it could not be used in the next use unless it was replaced with a battery.
[0008]
In the portable electronic endoscope apparatus disclosed in Japanese Patent Application Laid-Open No. 11-9548, the power of the rechargeable power supply is supplied to the solid-state imaging device, the signal processing unit, the liquid crystal monitor, and the like. There is a problem that it is difficult to use for a long time unless the state of charge is full.
[0009]
The present invention has been made in view of the above circumstances, and it is possible to use a commercial power source and a rechargeable power source as the power of the electrical component. When the commercial power source is used, the power supply to the electrical component and the rechargeable power source are possible. An object of the present invention is to provide an endoscope apparatus capable of supplying electric power for charging.
[0010]
[Means for Solving the Problems]
The endoscope apparatus of the present invention accommodates a rechargeable battery. Battery storage And an endoscope having an electrical component that operates by power supplied from the rechargeable battery, a cable, and one end of the cable, and an AC / DC converter and the rechargeable battery inside In an endoscope apparatus provided with a power supply cable provided with an outlet connected to a commercial power source, provided with a charger for charging,
The power supply cable includes a cable connector having a pair of charging contact pins and a pair of power supply pins at the other end.
The endoscope has a pair of charging contact portions to which the cable connector is detachably connected, Elastically deform A pair of electrical component contact portions, and an electrical connection portion having a pair of electrical component contacts,
The endoscope is State where the cable connector is not connected to the electrical connection part In the endoscope A pair of contacts for electrical components And one Pair of electrical component contacts Each is in electrical continuity, The rechargeable battery When The electrical component Charging power lamp that is electrically connected to Forming a circuit,
State where the cable connector is connected to the electrical connection portion In the endoscope A pair of charging contacts and , Above Cable connector A pair of charging contact pins Each is in electrical continuity, The charger When The rechargeable battery And the electrical connection For rechargeable batteries for Charge Battery charging circuit, and Above Endoscopic A pair of contacts for electrical components Before Record Cable connector Pair of power pins Are in electrical continuity, AC / DC converter When The electrical component When The Electrically connected commercial power lamp lights Form a circuit.
[0011]
According to this configuration, the endoscope Electrical connection In Power supply cable connector When connected Commercial power supply Power But Electrical parts and rechargeable Dry cell To supply Is The At this time, rechargeable Dry cell Will be charged. on the other hand, Power supply cable Rechargeable when removed from the endoscope Dry cell Power But Supply to electrical components Is The
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
1 to 3 relate to a first embodiment of the present invention, FIG. 1 is an explanatory view showing the overall configuration of the endoscope apparatus, and FIG. 2 is an endoscope configured by connecting power supply means to the endoscope. FIG. 3 is an explanatory diagram showing the configuration of the electrical circuit of the endoscope apparatus configured by removing the power supply means from the endoscope.
[0013]
As shown in FIG. 1, the endoscope apparatus 1 of the present embodiment is mainly configured by an elongated insertion portion 20 that is inserted up to an observation site and an operation portion 21 that also serves as a gripping portion that is held by a user. An illumination lamp which is a so-called light source device provided with a so-called optical endoscope 2 having an eyepiece 22 at a base end portion 21 and a light source lamp 31 which is detachably attached to the endoscope 2 and supplies illumination light. Mainly composed of a unit 3 and a power supply cable 4 that is a power supply means that is detachably attached to the endoscope 2 and that supplies power to, for example, an illumination lamp unit 3 that is an electrical component provided in the endoscope 2. Has been.
[0014]
The power supply cable 4 is an elongated cable 41 and a connection having an electrical contact portion as an electrical connection portion, which will be described later, provided at the operation portion 21 of the endoscope 2 at an end portion of the cable 41. A cable connector 42 having electric contact pins, which will be described later, detachably attached to the socket 23, and an outlet portion 44 having an outlet 43 connected to a commercial power source.
[0015]
A charging voltage and current suitable for the characteristics of a rechargeable dry battery, which is a rechargeable power source described later, housed in a battery housing portion 24, which will be described later, housed in a battery housing portion 24, which will be described later, which is a power source housing portion of the endoscope 2. A charger 45 to be applied and an AC / DC converter 46 to apply a DC current matching the rating of the light source lamp 31 of the illumination lamp unit 3 are provided.
[0016]
The illumination lamp unit 3 includes a light source lamp 31 that emits illumination light, and a lamp holder 32 that holds the light source lamp 31 and also serves as a switch function for operating lighting / non-lighting of the lamp. The light source lamp 31 is screwed and fixed to the lamp holder 32 so as to maintain electrical continuity.
[0017]
The insertion portion 20 of the endoscope 2 includes a hard distal end portion 2a in order from the distal end side, a bendable bending portion 2b continuously provided at the rear end of the distal end portion 2a, and the bending portion 2b. It is comprised by the flexible tube part 2c which has the flexibility provided in a row by the rear end. The bending portion 2b is configured to bend by turning a bending operation lever (not shown) provided in the operation portion 21.
[0018]
A light guide fiber 25 that guides illumination light in the insertion portion 20, an image guide fiber (not shown) that configures an observation optical system and guides an observation image to the eyepiece portion 22, a treatment instrument channel, and a suction channel A treatment instrument insertion tube or the like (not shown) that constitutes is inserted. One end of the light guide fiber 25 is disposed at the focal position of the condenser lens 27 provided in the lamp socket 26.
[0019]
The battery housing portion 24 is integrally provided on the back side of the lamp socket 26. The battery storage unit 24 stores a rechargeable battery 5 such as nickel-cadmium, nickel-metal hydride, or lithium ion as a rechargeable power source. On the side surface of the battery storage unit 24, a display unit 24a composed of an LED or the like that displays the remaining capacity or the charge level of the rechargeable battery 5 is provided.
[0020]
The operation unit 21 is provided with a connection socket 23 to which a cable connector 42 of the power supply cable 4 is detachably connected. By connecting the cable connector 42 to the connection socket 23, power for turning on the light source lamp 31 and power for charging the rechargeable battery 5 are supplied.
[0021]
The operation portion 21 is provided with a forceps insertion port 28 communicating with the treatment instrument insertion tube, and a suction base 29 communicating with the treatment instrument insertion tube is provided at a side portion of the forceps insertion port 28. It has been. A forceps plug 28a is attached to the forceps insertion port 28 so as to be closed.
[0022]
A suction tube extending from an aspirator (not shown) is connected to the suction base 29, and the treatment instrument insertion tube, the suction base 29, and the suction tube are connected by appropriately operating a suction lever 29a. A body fluid or the like can be sucked through.
Reference numeral 24b denotes a battery housing lid for taking in and out the rechargeable battery 5. When the battery housing lid 24b is attached to the battery housing portion 24, watertightness is maintained.
[0023]
With reference to FIG. 2, the configuration and operation of the endoscope apparatus 1 with the illumination lamp unit 3 and the power supply cable 4 attached to the endoscope 2 will be described.
By connecting the illumination lamp unit 3 to the lamp socket 26 of the endoscope 2, the light source lamp 31 faces the condenser lens 27. At this time, since the illumination lamp unit 3 is disposed in the lamp socket 26 in a watertight state, the entire endoscope has a watertight structure.
[0024]
On the other hand, the cable connector 42 of the power supply cable 4 is connected to the connection socket 23 of the endoscope 2 to constitute the endoscope apparatus 1. Then, as shown in FIG. 2, charging contact pins 4a and 4b and lamp power pins 4c and 4d provided as electrical contact pins on the cable connector 42, and electrical contact portions provided on the connection socket 23 The contact portions 23a and 23b for charging and the contact portions 23c and 23d for lamps which are, for example, leaf spring contacts which become circuit switching means are brought into electrical contact with each other, and the AC / DC converter 46 is brought into electrical conduction. A first circuit having a commercial power supply lamp lighting circuit that electrically connects the light source lamp 31 and a battery charging circuit that electrically connects the charger 45 and the rechargeable battery 5 to charge the rechargeable battery 5. Constitute. Then, at the same time as the battery charging circuit is configured, charging of the rechargeable battery 5 is started.
[0025]
Here, the switch 33 is turned on by rotating the lamp holder 32 which also functions as the switch of the illumination lamp unit 3. Then, the light source lamp 31 emits light by the electric power supplied from the AC / DC converter 46, and the illumination light from the light source lamp 31 passes through the condenser lens 27 in the lamp socket 26 and passes through the light guide fiber 25. It is condensed on the incident end face.
[0026]
The condensed illumination light is transmitted through the light guide fiber 25 and emitted from an illumination window (not shown) provided at the distal end portion 2a of the insertion portion 20 toward the observation site. An observation image of the illuminated observation region is connected to the distal end surface of the image guide fiber by an objective lens attached to an observation window (not shown) adjacent to the illumination window, and the formed optical image is an eyepiece. Magnified observation is performed through 22 eyepieces (not shown).
[0027]
At the time of connection, first, the lamp power pins 4c and 4d are brought into contact with the leaf spring contacts which are the lamp contact portions 23c and 23d, and the leaf spring contacts are elastically deformed to thereby form the leaf spring contacts and the lamps. A commercial power lamp lighting circuit is formed in which the electrical continuity with the contacts 3a, 3b is cut off. Next, after the commercial power lamp lighting circuit is formed, the charging contact pins 4a and 4b and the charging contact portions 23a and 23b come into contact with each other, and the charger 45 and the rechargeable battery 5 come into contact with each other. A charging circuit is formed and charging of the rechargeable battery 5 is started.
[0028]
Further, when the first circuit described above is configured, the battery charging circuit is configured only after the electrical continuity between the leaf spring contact and the lamp contacts 3a and 3b is cut off. Thus, the current from the charger 45 does not flow to the light source lamp 31.
[0029]
In the endoscope apparatus 1 of this figure, since the commercial power source is used as the power source by the power supply cable 4, the light source lamp 31 can be continuously lit while the power supply cable 4 is connected, and can be used for long-term observation. It becomes.
[0030]
In addition, since the rechargeable battery 5 is being charged even while the endoscope apparatus is in use with the lamp lit, the rechargeable battery 5 is instantly used as a power source by removing the cable connector 42 from the connection socket 23. 3 is an endoscope apparatus 1 that can be used in a portable manner.
[0031]
Further, when only the rechargeable battery 5 is charged, the lamp holder 32 is operated to turn off the switch 33 so that the light source lamp 31 is turned off.
[0032]
Next, the configuration and operation of the endoscope apparatus 1 with the power supply cable 4 removed from the endoscope 2 will be described with reference to FIG.
When the illumination lamp unit 3 is connected to the lamp socket 26 of the endoscope 2 and the cable connector 42 of the power supply cable 4 is not connected to the connection socket 23 of the endoscope 2, the leaf spring As shown in FIG. 2, the lamp power pins 4c and 4d are not in contact with the lamp contact portions 23c and 23d which are the contacts. For this reason, the leaf spring contact is electrically connected to the lamp contacts 3a and 3b without being elastically deformed to be in an electrically conductive state, and the rechargeable battery 5 and the light source lamp 31 are electrically connected. A second circuit having a power lamp lighting circuit is formed.
[0033]
Here, the switch 33 is turned on by rotating the lamp holder 32 which also functions as the switch of the illumination lamp unit 3. Then, the light source lamp 31 emits light by the power supplied from the rechargeable battery 5, and the illumination light from the light source lamp 31 passes through the condenser lens 27 in the lamp socket 26 and the light incident end face of the light guide fiber 25. The light is condensed and acts in the same manner as described above.
[0034]
Further, when the light source lamp 31 is lit, the display unit 24a provided in the battery storage unit 24 is lit to indicate that the power is being supplied, and the current charge capacity or remaining usage time of the rechargeable battery 5 is indicated to the operator. To inform.
[0035]
This notification is made when, for example, the LED is switched from a lighting state to a blinking state when the power supply voltage falls below a specified value, the emission color is changed, or the LED that is lit whenever a voltage drop progresses using a plurality of LEDs. It is configured to be displayed as a level meter.
[0036]
In the configuration of the endoscope apparatus 1 in this figure, the power supply cable 4 is not connected to the endoscope 2 when portability is required, such as emergency treatment or bedside treatment. Suitable for use in When the charge capacity of the rechargeable battery 5 becomes small, the cable connector 42 of the power supply cable 4 is connected to the connection socket 23 and the outlet portion 44 is connected to a commercial power source to charge the rechargeable battery 5 and Continue to observe.
[0037]
Further, in a charged state, the charge level may be displayed on the display unit 24a of the battery storage unit 24.
[0038]
As described above, when the leaf spring contact is provided as the circuit switching means and the power supply cable is connected to the endoscope, the endoscope apparatus in which the first circuit having the commercial power lamp lighting circuit and the battery charging circuit is formed is configured. When the power supply cable is removed from the endoscope, an endoscope apparatus is formed which forms a second circuit that is a charging power lamp lighting circuit, so that the charging state of the rechargeable battery is not enough to withstand actual use. When the voltage drops, the power supply cable is connected to the endoscope to form the first circuit, whereby the rechargeable battery can be charged simultaneously with observation. This makes it possible to perform charging work while observing using a commercial power source to prevent forgetting to charge the rechargeable battery that occurred after using the commercial power source. No need to distribute.
[0039]
In addition, by displaying the remaining capacity of the rechargeable battery on the display unit, the charge management of the rechargeable battery can be performed reliably and easily.
[0040]
In addition, when connecting the power supply cable to the endoscope, the charging power lamp lighting circuit is opened, and the battery charging circuit is configured later, thus reliably preventing the overvoltage from the charger on the light source lamp. be able to. This eliminates lamp filament breakage and the like.
[0041]
FIG. 4 is an explanatory view showing an endoscope apparatus having another configuration in which the power supply means according to the second embodiment of the present invention is connected to the endoscope.
As shown in the drawing, the endoscope of the present embodiment is an electronic endoscope 2A in which a solid-state imaging device 51 is disposed as an observation optical system at the distal end portion 2a of the insertion portion 20.
[0042]
At the distal end portion 2a of the electronic endoscope 2A, the solid-state image sensor 51 that is an electrical component and an objective lens 52 that forms an optical image of the observation site on the imaging surface of the solid-state image sensor 51 are disposed. The image signal photoelectrically converted by the solid-state imaging device 51 is transmitted to a signal processing unit 54 which is an electric component disposed in the operation unit 21 via a signal cable 53, and the video signal is converted by the signal processing unit 54. The endoscope image is generated and displayed on the liquid crystal monitor 55 which is an electrical component provided in the operation unit 21. The operation unit 21 is provided with a video output terminal 56 for outputting the generated video signal so that an endoscopic image can be displayed on the display device 6 via the TV cable 61. Yes.
[0043]
That is, in the present embodiment, in addition to the illumination lamp unit 3, a solid-state imaging device 51, a signal processing unit 54, and a liquid crystal monitor 55 are provided as electrical components. The electric power necessary for the operation of these electric components is supplied by the rechargeable battery 5 and the power supply cable 4. As a general usage pattern, the power supply cable 4 is connected to the endoscope 2A. It is what you use. Other configurations are the same as those of the first embodiment, and the same members are denoted by the same reference numerals and description thereof is omitted.
[0044]
The operation of the electronic endoscope apparatus 1A configured as described above will be described.
In the present embodiment, the inspection is usually performed by connecting the power supply cable 4 to the endoscope 2A. For this reason, since electric power for charging is supplied to the rechargeable battery 5 during the inspection, the capacity of the rechargeable battery 5 becomes full after the inspection. Other operations are the same as those in the first embodiment.
[0045]
As described above, the electronic endoscope according to the present embodiment is normally configured to perform an inspection as an electronic endoscope apparatus to which a power supply cable is connected. Therefore, the rechargeable battery is reliably charged during the inspection. It can be carried out. As a result, when the electronic endoscope is portable, the rechargeable battery is always full, so that the maximum time can be used.
[0046]
In addition, since the endoscope apparatus is configured by connecting the power supply cable to the electronic endoscope, it can be used with substantially the same workability as the portable electronic endoscope without impairing the portability.
[0047]
As shown in FIG. 5, the radio signal processing unit 57 and the transmission unit 58 are provided in the operation unit 21 of the electronic endoscope 2A, and the video signal generated by the signal processing unit 54 is transmitted to the radio signal processing unit 57 and the transmission unit. A configuration may be adopted in which a wireless signal is transmitted to the display device 6 </ b> A having the monitor receiving unit 62 via 58.
[0048]
Thereby, since an endoscopic image can be transmitted to the display device by a wireless signal, the arrangement position of the display device is not restricted.
[0049]
Further, as shown in FIG. 6, the electronic endoscope apparatus 1B may be configured by a power supply cable 4, an illumination lamp power supply unit 3A, and an electronic endoscope 2B. That is, the illumination lamp power supply unit 3A is separated from the electronic endoscope 2B, and the light source lamp 31 and the rechargeable battery 5 are arranged in the illumination lamp power supply unit 3A. Then, the illumination lamp power supply unit 3A and the power supply cable 4 are connected via the charging contact parts 23a and 23b and the lamp contact parts 23c and 23d, which are leaf spring contacts, as described above. The scope contact pin 71 provided on the illumination lamp power supply 3A and the scope contact 72 provided on the electronic endoscope 2B are electrically connected to each other so as to achieve electrical continuity between the unit 3A and the electronic endoscope 2B. The endoscope connected to the illumination lamp power supply unit 3A is not limited to an electronic endoscope, and may be an optical endoscope.
[0050]
As a result, since the endoscope is independent from the illumination lamp power supply unit, an endoscope apparatus optimal for inspection purposes can be configured by connecting the endoscope to the illumination lamp power supply unit according to the application. Endoscopy can be performed efficiently.
[0051]
The battery storage space of the battery storage unit 24 is formed in accordance with a battery size of a relatively large size among rechargeable batteries that are generally commercially available. That is, as shown in FIG. 7, the outer diameter of the rechargeable battery 5 is φA and the height is L, and the rechargeable battery 5 can be stored in the battery storage portion 24.
[0052]
However, for example, a rechargeable battery 5A having an outer diameter of φB smaller than that of the rechargeable battery 5 and a small height of L as shown by reference numeral 5A may be used. For this reason, in this embodiment, the rechargeable battery 5A having a small size is provided with a loading aid 77 that allows the battery storage unit 24 to store and use it.
[0053]
The loading assisting tool 77 has a storage portion 78 having the same external dimensions as the rechargeable battery 5, φA and height L, and the internal diameter for storing the rechargeable battery 5A is φB. It is configured. That is, the rechargeable battery 5 </ b> A is housed and disposed in the housing portion 78, and the loading aid 77 is housed in the battery housing portion 24. Accordingly, for example, the AA rechargeable battery can be loaded into the battery storage unit configured to store the AA rechargeable battery using the loading aid 77.
[0054]
In addition, the shape of the loading aid is not limited to the above-mentioned form, and the height dimension, the diameter dimension, the shape, and the like are adjusted in consideration of the shapes of other various rechargeable batteries. Therefore, by combining the loading aid and the battery in accordance with the shape of the battery, it becomes possible to load various types of batteries in the battery storage unit, thereby expanding the range of battery options.
[0055]
It should be noted that the present invention is not limited to the embodiments described above, and various modifications can be made without departing from the spirit of the invention.
[0056]
[Appendix]
According to the embodiment of the present invention as described above in detail, the following configuration can be obtained.
[0057]
(1) An endoscope including a power supply accommodating portion that accommodates a rechargeable power supply, and an electrical component that operates by electric power supplied from the rechargeable power supply,
In an endoscope apparatus comprising power supply means for supplying power for charging to the rechargeable power source,
The endoscope is
An electrical connection for detachably connecting the power supply means;
When the power supply means is connected to the electrical connection portion, a first circuit is formed that supplies power for operating the electrical component and power for charging the rechargeable power source from the power supply means. And a circuit switching means for forming a second circuit for supplying power from the rechargeable power source to the electrical component when the power supply means is not connected to the electrical connection portion,
An endoscope apparatus comprising:
[0058]
(2) The endoscope apparatus according to appendix 1, wherein the power supply unit includes a commercial power source as an electromotive force and includes a DC / AC converter and a charging voltage / current control circuit for charging the rechargeable power source therein.
[0059]
(3) The endoscope apparatus according to appendix 1, wherein the rechargeable power source is a rechargeable dry battery.
[0060]
(4) The endoscope apparatus according to appendix 1, wherein the circuit switching means is a leaf spring contact.
[0061]
(5) The endoscope is an optical endoscope,
The endoscope apparatus according to appendix 1, wherein the electrical component is an illumination lamp unit disposed at a light incident end of a light guide fiber that guides illumination light.
[0062]
(6) The illumination lamp has a switch for controlling the lamp to be in a lighting state or a non-lighting state, and when the power supply means is connected to the electrical connection portion, the lamp is turned off by the switch. Accordingly, the power supply means supplies only the power for charging the rechargeable power supply to the endoscope apparatus according to appendix 1.
[0063]
(7) The endoscope is an electronic endoscope provided with a solid-state imaging device at a distal end portion of the insertion portion,
The electrical component outputs a drive signal to an illumination lamp unit disposed at a light incident end of a light guide fiber that guides illumination light and the solid-state image sensor, while processing an image signal obtained by the solid-state image sensor The endoscope apparatus according to appendix 1, which is a signal processing unit.
[0064]
(8) The endoscope apparatus according to appendix 7, wherein the signal processing unit includes a transmission unit that converts a video signal into a radio signal and transmits the radio signal.
[0065]
(9) A light guide fiber for guiding illumination light, a solid-state imaging device that photoelectrically converts the formed observation image into an image signal, and a signal processing unit that processes the drive signal and the image signal of the solid-state imaging device An electronic endoscope comprising:
A light source device that is detachably attached to the electronic endoscope and includes an illumination lamp and a rechargeable power source;
Power supply means comprising a charging voltage / current control circuit for charging a commercial power source detachably attached to the light source device, and charging a DC / AC converter and the rechargeable power source therein;
An endoscope apparatus comprising:
[0066]
(10) The endoscope apparatus according to appendix 1, wherein the battery storage unit includes a loading aid for loading a rechargeable battery having different external dimensions into a normal state.
[0067]
【The invention's effect】
As described above, according to the present invention, it is possible to use a commercial power source and a rechargeable power source as the power of the electrical component. When the commercial power source is used, the power is supplied to the electrical component and the rechargeable power source is charged. Therefore, it is possible to provide an endoscope apparatus capable of supplying electric power.
[Brief description of the drawings]
FIG. 1 to FIG. 3 relate to a first embodiment of the present invention, and FIG. 1 is an explanatory diagram showing an overall configuration of an endoscope apparatus.
FIG. 2 is an explanatory diagram showing a configuration of an electric circuit of an endoscope apparatus configured by connecting power supply means to an endoscope.
FIG. 3 is an explanatory diagram showing a configuration of an electric circuit of an endoscope apparatus configured by removing power supply means from an endoscope.
FIG. 4 is an explanatory view showing an endoscope apparatus having another configuration in which power supply means according to a second embodiment of the present invention is connected to an endoscope.
FIG. 5 is a diagram illustrating another configuration example of the electronic endoscope apparatus.
FIG. 6 is a diagram for explaining another configuration example of the endoscope apparatus.
FIG. 7 is a diagram for explaining a relationship between a battery storage unit and a rechargeable battery.
[Explanation of symbols]
1. Endoscope device
2. Endoscope
3. Lighting lamp unit
4 ... Power supply cable
5 ... Rechargeable battery
23 ... Connection socket
24 ... Battery compartment
45 ... Battery charger
46 ... AC / DC converter

Claims (6)

Provided at a battery storage section for storing a rechargeable dry battery, an endoscope having electric parts operated by power supplied from the rechargeable dry battery, a cable, and one end of the cable, and an AC / DC inside In an endoscope apparatus including a converter and a power supply cable including an outlet connected to a commercial power source, the battery including a charger for charging the rechargeable dry battery,
The power supply cable includes a cable connector having a pair of charging contact pins and a pair of power supply pins at the other end.
The endoscope includes a pair of charging contact portions to which the cable connector is detachably connected, a pair of electrical component contact portions to be elastically deformed , and an electrical connection portion having a pair of electrical component contacts,
The endoscope is
In the state in which the cable connector is not connected to the electrical connection portion, and the electrical component contacts the pair of the one-to-electrical component contacts of the endoscope becomes electrically conductive state, respectively, the rechargeable Forming a charging power lamp lighting circuit in which a dry battery and the electrical component are electrically connected ;
Wherein in a state where the cable connector is connected, a pair of charging contacts of the endoscope, said pair of charging contact pins of the cable connector becomes electrically conductive state to each of the electrical connection portion, pair of front Symbol cable connector and said rechargeable battery and said charger battery charging circuit electrically connected to charge for on the rechargeable batteries, and the pair of electrical component contacts of the endoscope supply pins respectively become electrically conductive, before SL AC / DC converter and the endoscope apparatus characterized by forming a commercial power lamp lighting circuit electrically connecting the electrical component. When said cable connector is connected to the electrical connections, the contact portion for a pair of electrical components of the endoscope, while becomes electrically conductive state pair of power pins of the cable connector abut respectively, said power supply pins become electrically conductive state the electrical component contacts is elastically deformed, by cutting the electrical conduction state between the between the electrical component contacts the pair of the electric component contacts, the endoscope instead of the charging power supply lamp lighting circuit in a mirror form the commercial power source lamp lighting circuit, thereafter, each electric pair of a charging contact portion of the endoscope and a pair of charging contacts pins of the cable connector The endoscope apparatus according to claim 1, wherein the battery charging circuit is formed in an electrically conductive state . The endoscope is an optical endoscope,
The endoscope apparatus according to claim 1, wherein the electrical component is an illumination lamp unit disposed at a light incident end of a light guide fiber that guides illumination light. The illumination lamp unit has a switch for controlling the light source lamp to a lighting state or a non-lighting state,
When said cable connector is in the connected state to the electrical connection portion, the endoscope by the light source lamp in the non-lighting state by the switch, by the battery charging circuit, the rechargeable before Symbol charger The endoscope apparatus according to claim 3, wherein only an electric power for charging the dry battery is supplied. The endoscope is an electronic endoscope provided with a solid-state imaging device at a distal end portion of an insertion portion,
The electrical component outputs at least an illumination lamp unit disposed at a light incident end of a light guide fiber that guides illumination light, and a drive signal to the solid-state image sensor, while an image obtained by the solid-state image sensor The endoscope apparatus according to claim 1, wherein the endoscope apparatus is a signal processing unit that processes a signal. The battery housing, the rechargeable by Hama instrumentation different other rechargeable batteries of Dimensions and battery, the light source lamp by the power supplied from the other rechargeable batteries that were charged to the battery compartment The endoscope apparatus according to any one of claims 1 to 5, further comprising a loading aid for enabling a lighting state .

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