JP2015177902A - Endoscope system and endoscope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent damage of a solid-state imaging device even when an endoscope is removed from a processor device while power is fed from the processor device to the solid-state imaging device of the endoscope.SOLUTION: The endoscope system comprises: an endoscope 10 including a power receiving part 36 that contactlessly receives electric power from a power feeding part 62 of a processor device 11, a power supply generation part 32 for generating a plurality of power supplies with different voltages by the received power, and a solid-state imaging device 30 driven by the plurality of generated power supplies; and the power feeding part 62. A photodiode (PD) 42 detects a magnitude of leakage light of a light signal used for a contactless type communication between the endoscope 10 and the processor device 11. When the photodiode 42 detects displacement of the power receiving part 36 in a direction of separating from the power feeding part 62, before the power receiving part 36 separates from the power feeding part by such a distance not to receive the power, the endoscope system stops the power feed from the plurality of power supplies of the power supply generation part 32 to the solid-state imaging device 30 in a prescribed order.

Description

  The present invention relates to an endoscope system and an endoscope, and more particularly to an endoscope system and an endoscope that prevent damage to a solid-state imaging device mounted at a distal end portion of an endoscope insertion portion.

  As is well known, an endoscope system includes an endoscope (scope) equipped with a solid-state imaging device such as a CCD (Charge Coupled Device) image sensor that images the inside of a body cavity, and a connector of the endoscope is attached and detached. An endoscopic processor device (hereinafter simply referred to as a processor device) that is mounted in such a manner that it performs image processing on image data output from the endoscope and outputs the processed image data to a display device.

  Patent Document 1 discloses a processor device that generates a plurality of voltage power sources (a plurality of types of power sources) necessary for driving a CCD image sensor of an endoscope and supplies power from the power sources to the endoscope. Is disclosed. Further, it is disclosed that damage to the CCD image sensor is prevented by controlling the order and interval of turning on a plurality of types of power to the CCD image sensor of the endoscope according to the order and interval corresponding to the type of the CCD image sensor. Has been.

  Japanese Patent Application Laid-Open No. 2003-259542 discloses a laser surgical apparatus that includes a laser oscillation device that oscillates laser light and a laser probe that is detachably attached to a mounting portion of the laser oscillation device. Is detected by a distance detection sensor, and the shutter body is retracted from the optical path of the laser beam emitted to the laser probe only when the attachment is detected. Accordingly, it is disclosed that a situation in which laser light leaks when a laser probe is mounted on a mounting portion of a laser oscillation device is prevented.

JP 2009-189529 A Japanese Patent Publication No. 3-12891

  By the way, when a plurality of voltage power sources (plural types of power sources) are required to drive the solid-state imaging device, the order of starting and stopping the power supply from the plurality of types of power sources to the solid-state imaging device is usually stopped. The order is determined in advance corresponding to the type of the solid-state imaging device, and the stop of power supply is generally performed in the reverse order to the start of power supply.

  Even in an endoscope system, when a solid-state image sensor of an endoscope requires a plurality of types of power supplies, in order to prevent damage to the solid-state image sensor, start of power supply from the plurality of types of power supplies to the solid-state image sensor and It is desirable to stop in a prescribed order.

  In an endoscope system, normally, power necessary for driving a solid-state imaging device of an endoscope is supplied from a processor device. In the endoscope system described in Patent Document 1, an endoscope connector is connected to the processor device. Is connected, the power supply from the plurality of types of power supplies of the processor device to the solid-state image sensor of the endoscope is started in a prescribed order, and when the user instructs to stop driving the solid-state image sensor, Power supply to the solid-state imaging device is stopped in a prescribed order. This prevents damage to the solid-state image sensor.

  However, a situation may occur in which the user inadvertently removes the connector of the endoscope from the processor device without stopping the power supply to the solid-state imaging device at the time of observation in the body cavity or after the observation is completed. In Patent Document 1, such a situation is not assumed, and when such a situation occurs, power supply from a plurality of types of power supplies to the solid-state imaging device is stopped almost simultaneously and stopped in a prescribed order. Therefore, there is a possibility that the solid-state imaging device is damaged.

  Patent document 2 detects the attachment / detachment of a connector and serves as a trigger for opening and closing the shutter, but application to an endoscope system is not suggested, and in particular, damage to a solid-state image sensor of an endoscope There is no suggestion of application to power supply control to prevent this.

  The present invention has been made in view of such circumstances. In the state where power is supplied from the processor device to the solid-state image sensor of the endoscope, the endoscope is removed from the processor device. Even if it exists, it aims at providing the endoscope system and endoscope which can prevent damage to a solid-state image sensor beforehand.

  In order to achieve the above object, an endoscope system according to an aspect of the present invention includes a power receiving unit that receives power in a non-contact manner from a power feeding unit, and a plurality of power supplies having different voltages depending on the power received by the power receiving unit. An endoscope including a power generation unit that generates power, a solid-state imaging device that is driven by power supplied from a plurality of power sources generated by the power generation unit, and a power feeding unit, and the endoscope is attached and detached In an endoscope system including an endoscopic processor device that can be connected, distance information detection means for detecting distance information related to the distance of the power receiving unit relative to the power supply unit, and distance information detected by the distance information detection unit Based on the detection of the displacement of the power reception unit in the direction away from the power supply unit, the solid-state imaging device from each of the plurality of power sources of the power generation unit before the power reception unit becomes a distance incapable of receiving power with respect to the power supply unit Power to It comprises a power supply control unit for stopping the supply in a predetermined order, the.

  According to this aspect, in a state where power is supplied to the solid-state imaging device from a plurality of power sources (a plurality of power sources having different voltages) generated by the power supplied from the endoscope processor device, Even if the mirror is inadvertently removed from the endoscope processor device, power is supplied from the endoscope processor device to the endoscope. Power supply is stopped in a prescribed order. Therefore, even in such a case, damage to the solid-state image sensor is prevented.

  In the endoscope system according to one aspect of the present invention, it is preferable that the distance information detection unit and the power supply control unit are provided in the endoscope.

  In the endoscope system according to one aspect of the present invention, the power supply control unit is driven by the power supplied from the power reception unit, and before the operation of the power supply control unit is stopped due to insufficient power supplied from the power reception unit. Further, it is preferable that the power supply from each of the plurality of power sources of the power generation unit is stopped in a prescribed order.

  In the endoscope system according to one aspect of the present invention, the power reception unit is installed at a connection distance position where power can be received by the power feeding unit in a state where the endoscope is connected to the endoscope processor device. The power supply control unit, when detecting an increase from the connection distance of the power receiving unit distance to the power supply unit based on the distance information detected by the distance information detection unit, in a direction away from the power supply unit. It is preferable to adopt an aspect in which it is determined that the displacement of the power receiving unit has been detected.

  This mode is one mode for detecting the displacement of the power receiving unit in a direction away from the power feeding unit. When the endoscope is connected to the endoscopic processor device, the power receiving unit becomes the power feeding unit. On the other hand, when the power receiving unit is installed at a position where the power can be received, the displacement of the power receiving unit in a direction away from the power feeding unit can be detected by an increase in the distance from the connection distance.

  In the endoscope system according to one aspect of the present invention, the endoscope includes an endoscope-side connector that is detachably connected to the processor-side connector of the endoscope processor device, and the power reception unit includes the endoscope The endoscope-side connector and the processor when the endoscope-side connector is removed from the processor-side connector and is installed at a distance when connected to the power feeding unit in a state where the mirror-side connector is connected to the processor-side connector As the distance to the side connector increases, the distance of the power receiving unit with respect to the power supply unit increases from the connection distance, and the distance information detection means displays information on the distance between the endoscope side connector and the processor side connector. Detection means for detecting distance information, and the power supply control unit is detached from the processor-side connector when the endoscope-side connector is attached to the processor-side connector. An increase in the distance between the endoscope connector and processor connector as it is, it is preferable that the aspect of detecting the increase of the connection when the distance of the distance of the power receiving portion for feeding unit.

  This mode is one mode for detecting an increase in the distance of the power receiving unit relative to the power feeding unit from the connection distance, and the power feeding unit is detected by detecting an increase in the distance between the endoscope side connector and the processor side connector. An increase in the distance of the power receiving unit from the connected distance can be detected.

  In the endoscope system according to an aspect of the present invention, the endoscope processor device includes a communication light emitting unit that transmits an optical signal for performing non-contact communication with the endoscope through a processor-side connector, The endoscope has a light receiving means for communication that receives an optical signal through the endoscope side connector, and the distance information detecting means uses the magnitude of leakage light of the optical signal transmitted from the light emitting means for communication as distance information. The distance information detection light-receiving means to detect, the power supply control unit between the endoscope-side connector and the processor-side connector when the endoscope-side connector is removed from the processor-side connector in a state where the endoscope-side connector is connected to the processor-side connector It is preferable that an increase in the distance be detected by detecting an increase or decrease in leakage light.

  According to this aspect, when non-contact communication is performed between the endoscope and the endoscope processor device, the leakage light of the optical signal is used to connect the endoscope side connector and the processor side connector. An increase in the distance between them can be detected.

  In the endoscope system according to one aspect of the present invention, the distance information detection unit is turned on when the endoscope side connector is connected to the processor side connector, and when the endoscope side connector is removed from the processor side connector. The power control unit is configured to switch between the endoscope side connector and the processor side connector when the endoscope side connector is removed from the processor side connector in a state where the endoscope side connector is connected to the processor side connector. It is preferable to adopt a mode in which an increase in the distance between the switches is detected by switching the switch from on to off.

  According to this aspect, it is possible to detect an increase in the distance between the endoscope side connector and the processor side connector using a physical switch with a simple configuration.

  In the endoscope system according to one aspect of the present invention, the power receiving unit receives power by magnetic coupling with the power feeding unit, the distance information detection unit is a coil magnetically coupled with the power feeding unit, and the power control unit A mode in which an increase in the distance between the endoscope side connector and the processor side connector when the endoscope side connector is detached from the processor side connector while being attached to the processor side connector is detected by a decrease in the output value of the coil. It is preferable that

  According to this aspect, an increase in the distance between the endoscope-side connector and the processor-side connector is detected using the power feeding unit used for power transmission between the endoscope and the endoscope processor device. can do.

  In the endoscope system according to an aspect of the present invention, the endoscope processor device includes a light source device that supplies the endoscope with illumination light that irradiates an observation site of the endoscope, and includes an endoscope-side connector. The processor-side connector preferably includes a light guide connector that integrally transmits illumination light from the light source device to the endoscope.

  According to this aspect, the number of connectors that connect the endoscope to other devices can be reduced.

  In the endoscope system according to one aspect of the present invention, the endoscope-side connector includes a light guide rod that is inserted into the endoscope processor device from the opening of the processor-side connector, and the power receiving unit is a power feeding unit. However, it is preferable that the distance for switching from the distance at which power can be received to the distance at which power cannot be received be shorter than the length of the light guide rod.

  According to this aspect, when the operation of removing the endoscope-side connector from the processor-side connector is detected by the distance information detection means, the emission of illumination light from the light source device is stopped, whereby the endoscope-side connector It is possible to prevent a situation in which illumination light is projected to the outside from the opening of the processor-side connector from which is removed.

  In the endoscope system according to one aspect of the present invention, it is preferable that the solid-state imaging device is a charge coupled device.

  In the endoscope system according to one aspect of the present invention, it is preferable that the endoscope has an aspect in which power storage means serving as a power source is not mounted.

  The endoscope which concerns on the other aspect of this invention is an endoscope which comprises the said endoscope system, Comprising: A distance information detection means and a power supply control part are provided.

  According to the present invention, in a state where power is supplied from the processor device to the solid-state imaging device of the endoscope, the solid-state imaging device is not damaged even when the endoscope is removed from the processor device. Can be prevented.

External view showing an endoscope system to which the present invention is applied The block diagram which showed the structure part relevant to the damage prevention function of a solid-state image sensor in the endoscope system of 1st Embodiment. The figure used for description of the breakage prevention function in the first embodiment The figure used for description of the breakage prevention function in the first embodiment The flowchart which showed the process sequence regarding the damage prevention function of the solid-state image sensor in the power supply control part of an endoscope The block diagram which showed the structure part relevant to the damage prevention function of a solid-state image sensor in the endoscope system of 2nd Embodiment. The figure used for description of the breakage prevention function in the second embodiment The block diagram which showed the structure part relevant to the damage prevention function of a solid-state image sensor in the endoscope system of 3rd Embodiment. The figure used for description of the breakage prevention function in the third embodiment The block diagram which showed the structure part relevant to the damage prevention function of a solid-state image sensor in the endoscope system of 4th Embodiment. The figure which showed schematic structure of the light guide connector in an endoscope side connector and a processor side connector The external view which showed the other form of the endoscope system to which this invention is applied

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is an external view showing an endoscope system to which the present invention is applied.

  As shown in FIG. 1, the endoscope system 2 includes an electronic endoscope 10 (hereinafter simply referred to as an endoscope 10) and an endoscope processor device 11 (hereinafter simply referred to as a processor device 11).

  The endoscope 10 shown in the figure is an example of a flexible endoscope. As is well known, a flexible insertion portion 13 (endoscope insertion portion 13) to be inserted into a patient's body cavity and the insertion portion 13 are provided. It has the operation part 15 provided in a line by the base end part, the connector 17 connected to the processor apparatus 11, and the universal cord 18 which connects between the operation part 15 and the connector 17. FIG. However, the present invention can be applied even if the endoscope 10 is not limited to a flexible endoscope but may be another type of endoscope such as a rigid endoscope.

  An observation window, an illumination window, and the like are provided on the distal end surface of the endoscope insertion portion 13, and an observation window is provided on the distal end portion 14 (endoscope distal end portion 14) constituting the distal end of the endoscope insertion portion 13. An objective optical system that forms subject light from an observation site captured by the optical system as an optical image, a solid-state imaging device (a solid-state imaging device 30 described later) that converts the optical image formed by the objective optical system into an electrical signal, and the like Is placed. An imaging signal output from the solid-state imaging device is transmitted by a transmission cable inserted and arranged to the connector 17 (endoscope side connector 17) through the inside of the insertion unit 13, the operation unit 15, and the universal cord 18. It is output to the device 11.

  In addition, a light guide light emitting portion that guides illumination light for irradiating the observation site from the illumination window is disposed at the endoscope distal end portion 14. The light guide is inserted and arranged to the endoscope side connector 17 through the insertion portion 13, the operation portion 15, and the universal cord 18, and emits light emitted from the light source device incorporated in the processor device 11. The light is guided from the endoscope-side connector 17 to the endoscope distal end portion 14 and emitted as illumination light to the observation site through the illumination window.

  The operation unit 15 includes an angle knob for bending the bending portion provided in the vicinity of the proximal end side of the endoscope distal end portion 14 to adjust the direction of the distal end surface of the insertion portion 13 in the vertical and horizontal directions, the insertion portion In addition to an air / water supply button for ejecting air and water from the distal end surface of 13, a release button for recording an endoscope image as a still image is provided.

  The processor device 11 supplies power to the endoscope 10 (power feeding) and transmits / receives various signals to / from the endoscope 10 by connecting to the endoscope-side connector 17 of the endoscope 10.

  The processor device 11 also includes a light source device, and supplies illumination light to the endoscope 10 by connection with the endoscope-side connector 17.

  The processor device 11 includes an input device (not shown) (operation switch, keyboard, mouse, etc.), and comprehensively controls the entire endoscope system 2 according to the operation of the operator input from the input device. Control.

  Further, the processor device 11 captures an imaging signal output from the solid-state imaging device of the endoscope distal end portion 14, and performs various signal processing on the captured imaging signal to generate a video (moving image) or a still image of the site to be observed. Generate image data to build. Then, the generated image data is output to a cable-connected monitor 19 to display an image of the observed region on the monitor 19 or the generated image data is recorded on a recording medium.

  Next, the damage prevention function of the solid-state imaging device provided in the endoscope system 2 of the present invention will be described.

  The function of preventing damage to the solid-state image sensor in the endoscope system 2 of the present invention is a case where power necessary for driving the solid-state image sensor of the endoscope 10 is supplied from the processor device 11. When the mounted solid-state imaging device requires a plurality of power sources (plural types of power sources) having different voltages, the power supply to the solid-state imaging device of the endoscope 10 is performed while the endoscope 10 is in the state. This prevents damage to the solid-state imaging device that may be caused by carelessly removing the endoscope-side connector 17 from the processor device 11. That is, damage to the solid-state image sensor that may occur due to power supply from a plurality of types of power supplies to the solid-state image sensor not being stopped in a predetermined order is prevented.

  FIG. 2 is a block diagram showing components related to the damage prevention function of the solid-state imaging device in the endoscope system 2 of FIG.

  As shown in the figure, the endoscope 10 is detachably attached (connected) to the processor-side connector 60 of the processor device 11 by the endoscope-side connector 17. In the endoscope system 2 of the present embodiment, the internal circuit of the endoscope 10 and the processor are connected via the attachment of the endoscope side connector 17 of the endoscope 10 and the processor side connector 60 of the processor device 11. The internal circuit of the device 11 is connected by an isolation device such as a transformer or a photocoupler. Thus, the internal circuit of the endoscope 10 and the internal circuit of the processor device 11 are configured to perform signal transmission and power transmission while ensuring insulation.

  The electric power required for driving the internal circuit of the endoscope 10 is supplied from the processor device 11 by the non-contact power supply means 50 including the power feeding unit 62 in the processor device 11 and the power receiving unit 36 in the endoscope 10.

  The non-contact power supply means 50 is means for transmitting and receiving electric power in a non-contact manner using electromagnetic induction, and uses a circuit on the primary coil side of the inverter transformer in the switching power supply as a power supply unit 62 for supplying electric power. This corresponds to a configuration in which the circuit on the side is separated as the power receiving unit 36 that receives power. When the endoscope-side connector 17 is attached to the processor-side connector 60, the power feeding unit 62 (primary coil) and the power receiving unit 36 (secondary coil) are arranged close to a distance that can be magnetically coupled, and the power feeding unit It is set in a state in which power can be transmitted in a non-contact manner from 62 to the power receiving unit 36.

  The power supply unit 62 is connected to the commercial power source 100 outside the processor device 11 via the stabilized power source control unit 63, supplied from the commercial power source 100, and stabilized by the stabilized power source control unit 63. Power is supplied. The power supplied from the power supply unit 62 to the power reception unit 36 is supplied by the power supplied from the stabilized power supply control unit 63 to the power supply unit 62. The non-contact power supply means 50 may be of any type as long as it is a means for transmitting and receiving power without contact.

  On the other hand, signal transmission between the internal circuit of the endoscope 10 and the internal circuit of the processor device 11 is performed by a non-contact type communication means 52 using a photocoupler.

  The non-contact type communication unit 52 is a unit that transmits and receives various signals in a non-contact manner using light, and is a photo that transmits various signals from the internal circuit of the endoscope 10 to the internal circuit of the processor device 11 as optical signals. A coupler, and a photocoupler that transmits various signals from the internal circuit of the processor device 11 to the internal circuit of the endoscope 10 as optical signals. The former receives an LED (Light Emitting Diode) 38 that transmits an optical signal as a communication light emitting unit mounted on the endoscope 10 and an optical signal from the LED 38 as a communication light receiving unit mounted on the processor device 11. PD (Photodiode) 66. The latter includes an LED 68 that transmits an optical signal as a communication light emitting unit mounted on the processor device 11 and a PD 40 that receives an optical signal from the LED 68 as a communication light receiving unit mounted on the endoscope 10.

  When the endoscope side connector 17 is attached to the processor side connector 60, these photocouplers are set in a state in which optical coupling is possible (optical signal transmission is possible). In the non-contact type communication means 52, the number of photocouplers that transmit signals in each direction between the endoscope 10 and the processor device 11 is not limited to one, and a plurality of photocouplers that transmit different types of signals are provided. It may be. In this case, the photocoupler composed of the LED 38 and the PD 66 and the photocoupler composed of the LED 68 and the PD 40 shown in the same figure are each one of a plurality of photocouplers that transmit a signal in each direction. It shall be illustrated.

  In the endoscope 10, the above-described solid-state imaging device 30 mounted on the endoscope distal end portion 14 is connected to the power receiving unit 36 of the non-contact power supply unit 50 via the power generation unit 32. As a result, the power required to drive the solid-state imaging device 30 is transmitted from the processor device 11 to the power receiving unit 36 of the non-contact power supply unit 50 and then supplied from the power receiving unit 36.

  The solid-state imaging device 30 is, for example, a CCD (Charge Coupled Device) image sensor, and converts an optical image of an observation site captured by the observation window and imaged by the objective optical system into an electrical signal as described above. It converts and outputs as an imaging signal.

  An imaging signal output from the solid-state imaging device 30 is transmitted from the endoscope 10 to the processor device 11. The transmission between the endoscope 10 and the processor device 11 is performed through, for example, the non-contact type communication means 52 or is isolated in a predetermined transmission method such as an LVDS (low voltage differential signal) method. This is performed through a transformer (not shown) which is a device.

  On the other hand, driving the solid-state imaging device 30 requires a plurality of power sources (a plurality of types of power sources) having different voltages. In the solid-state imaging device 30 according to the present embodiment, for example, it is assumed that power supplies of three types of voltages Vdd1, Vdd2, and Vdd3 (for example, 15V, 5V, and −5V) are required.

  The power sources of the three types of voltages Vdd1, Vdd2, and Vdd3 are represented by power sources Vdd1, Vdd2, and Vdd3. The present invention is not limited to three types of power supplies (voltages), and can be applied to a case where a solid-state imaging device that requires two or more types of power supplies is used. A type of power supply. Furthermore, the present invention is not limited to a CCD image sensor, and any other type of solid-state imaging device such as a CMOS (Complementary Metal Oxide Semiconductor) image sensor may be used as long as it is a solid-state imaging device that requires a plurality of power supplies having different voltages. Applicable.

  The power supply generation unit 32 generates power supplies Vdd1, Vdd2, and Vdd3 required for driving the solid-state imaging device 30 with the electric power supplied from the power reception unit 36. Each of the power supplies Vdd1, Vdd2, and Vdd3 is connected to a corresponding power supply terminal of the solid-state image sensor 30, and power from a plurality of types of power supplies Vdd1, Vdd2, and Vdd3 necessary for driving the solid-state image sensor 30 is supplied to the power generator 32. To the solid-state imaging device 30. Thereby, the solid-state image sensor 30 is driven.

  The start and stop of power supply (voltage output) from the power supplies Vdd1, Vdd2, and Vdd3 of the power generation unit 32 to the solid-state imaging device 30 are controlled by a power control unit 34 mounted on the endoscope 10.

  The power control unit 34 is driven by the power supplied from the power receiving unit 36 and may be configured as an independent circuit, or may be a function of an arithmetic processing circuit such as a CPU mounted on the endoscope 10. It may operate as. Further, it may be incorporated in the power generation unit 32.

  The power supply control unit 34 supplies power from the power sources Vdd1, Vdd2, and Vdd3 of the power generation unit 32 to the solid-state image sensor 30 at the start of driving of the solid-state image sensor 30 in order to prevent the solid-state image sensor 30 from being damaged. The output of the voltage is sequentially started in a prescribed order and time interval determined in advance corresponding to the type of the solid-state imaging device 30. For example, power supply to the solid-state imaging device 30 is started in the order of the power supply Vdd1, the power supply Vdd2, and the power supply Vdd3.

  In addition, when driving of the solid-state imaging device 30 is stopped, power supply (voltage output) from the power sources Vdd1, Vdd2, and Vdd3 of the power generation unit 32 to the solid-state imaging device 30 corresponds to the type of the solid-state imaging device 30. Stop in order according to a predetermined order. For example, power supply to the solid-state imaging device 30 is stopped in the order of the power supply Vdd3, the power supply Vdd2, and the power supply Vdd1.

  Normally, the above-described order at the start and stop of the driving of the solid-state imaging device 30 is reversed, but is not necessarily limited thereto, and may be defined individually.

  Here, the power supply control unit 34 is communicably connected to the control unit 64 mounted on the processor device 11 through the non-contact communication unit 52.

  The processor device 11 includes an input device 80 (operation switch, keyboard, etc.). When the user inputs an instruction to turn on / off the endoscope 10 by the input device 80, an instruction signal based on the instruction input is not contacted. The power is supplied from the control unit 64 to the power supply control unit 34 of the endoscope 10 through the mold communication means 52.

  The power supply control unit 34 indicates that the power supply of the endoscope 10 is instructed by the instruction signal, or when the endoscope side connector 17 is attached to the processor side connector 60 and the processor device through the non-contact power supply means 50 11 is activated by the power supplied from the power supply 11 (the power from the power receiving unit 36), the power generation unit 32 is controlled to control the power sources Vdd1, Vdd2, and Vdd3 of the power generation unit 32 in a prescribed order and time interval. Power supply to the solid-state imaging device 30 is started.

  On the other hand, when power-off is instructed by an instruction signal from the control unit 64 of the processor device 11, the power generation unit 32 is controlled to control each power supply Vdd1, Vdd2, and Vdd3 of the power generation unit 32 in a prescribed order. The power supply to the solid-state image sensor 30 is stopped. Then, the operation of itself is stopped.

  Damage to the solid-state image sensor 30 is prevented by such power supply control at the start and stop of the driving of the solid-state image sensor 30.

  In contrast, when the solid-state imaging device 30 is driven (when power is supplied), the endoscope side connector 17 is detached from the processor side connector 60 without the user inputting an instruction to turn off the power of the endoscope 10. In the case where the contact has occurred, the electromagnetic coupling between the power receiving unit 36 and the power feeding unit 62 in the non-contact power supply unit 50 is released, and the power supply from the processor device 11 to the endoscope 10 is stopped. After the operation of the power supply control unit 34 is stopped, the control of the power supply generation unit 32 as described above becomes impossible, so that the power supply from the power supplies Vdd1, Vdd2, and Vdd3 of the power supply generation unit 32 to the solid-state imaging device 30 is not performed. Stops cannot be made in the prescribed order.

  Therefore, the power supply control unit 34 detects distance information related to the distance of the power receiving unit 36 with respect to the power supply unit 62 in the non-contact power supply unit 50 by the distance information detection unit shown below, and based on the distance information, the power supply unit 62 detects the distance information. When the displacement of the power receiving unit 36 in the direction of separating the power receiving unit 36 is detected, the power receiving unit 36 is connected to the power feeding unit 62 when it is detected that the endoscope side connector 17 is detached from the processor side connector 60. The power supply from the power sources Vdd1, Vdd2, and Vdd3 of the power generation unit 32 to the solid-state imaging device 30 is stopped in a prescribed order before the distance where power cannot be received.

  That is, in the present embodiment, the power supply from the processor device 11 to the endoscope 10 is performed by the non-contact power supply means 50, so that the endoscope side connector 17 is detached from the processor side connector 60. Even in this case, the power supply from the processor device 11 to the endoscope 10 is continuously performed as long as the distance between the power receiving unit 36 and the power feeding unit 62 is within a certain distance.

  Therefore, even when the endoscope-side connector 17 is detached from the processor-side connector 60, the power generation unit 32 and the power control are performed until the power reception unit 36 reaches a distance where power cannot be received with respect to the power supply unit 62. Since the unit 34 is normally driven, the power supply control unit 34 can stop the power supply from the power sources Vdd1, Vdd2, and Vdd3 of the power generation unit 32 to the solid-state imaging device 30 in a prescribed order. .

  Therefore, when the power supply control unit 34 detects the displacement of the power reception unit 36 in a direction away from the power supply unit 62, the power supply control unit 34 immediately causes the power generation unit 32 to execute a process of stopping power supply. Thus, before the power receiving unit 36 reaches a power unacceptable distance with respect to the power supply unit 62, the power supply from the power sources Vdd1, Vdd2, and Vdd3 of the power generation unit 32 is stopped in a prescribed order. I have to.

  When the endoscope 10 is connected to the processor device 11 as in the present embodiment, the power receiving unit 36 is installed at a distance (referred to as connection distance) that can receive power from the power feeding unit 62. The case where the displacement of the power reception unit 36 in the direction away from the power supply unit 62 is detected is equal to the case where the increase of the distance of the power reception unit 36 relative to the power supply unit 62 from the connected distance is detected.

  Further, the power receiving unit 36 (secondary coil) and the power feeding unit 62 (primary coil) of the present embodiment maintain a certain positional relationship with respect to the endoscope side connector 17 and the processor side connector 60, respectively. Therefore, in the present embodiment, as distance information regarding the distance of the power receiving unit 36 with respect to the power supply unit 62, information regarding the distance between the endoscope side connector 17 and the processor side connector 60 corresponding thereto (hereinafter, referred to as the distance information) (This information is also referred to as distance information) is detected by the distance information detection means. Based on the distance information, the increase in the distance of the power receiving unit 36 with respect to the power feeding unit 62 from the connected distance is detected based on the distance information. The endoscope side connector 17 and the plug when the endoscope side connector 17 is detached from the processor side connector 60 with the processor side connector 60 being attached. And it detects an increase in the distance between the processor side connector 60.

  FIG. 2 shows the endoscope system 2 according to the first embodiment among the endoscope systems 2 according to the first to third embodiments in which the specific form of the distance information detection means is different. As shown in the figure, the endoscope 10 has a PD 42 as a distance information detection light receiving means as a distance information detection means.

  The PD 42 detects the magnitude of leakage light generated between the endoscope side connector 17 and the processor side connector 60, that is, the magnitude of leakage light of the optical signal transmitted from the LED 68 or the LED 38, and the detected leakage. A voltage detection signal corresponding to the magnitude of light is supplied to the power supply controller 34 as distance information.

  Here, since the magnitude of the leakage light detected by the PD 42 varies depending on the distance between the endoscope side connector 17 and the processor side connector 60, the detection signal of the PD 42 is obtained from the endoscope side connector 17 and the processor side. This corresponds to distance information related to the distance to the connector 60 and also corresponds to distance information related to the distance of the power receiving unit 36 relative to the power supply unit 62 as described above.

  The power control unit 34 is in a state where the solid-state imaging device 30 is driven, that is, in a state where power is supplied from the power sources Vdd1, Vdd2, and Vdd3 of the power generation unit 32 to the solid-state imaging device 30. Based on this detection signal, it is detected whether or not the distance between the endoscope side connector 17 and the processor side connector 60 has increased. When this increase is detected, it is assumed that the endoscope side connector 17 has been removed from the processor side connector 60, and the power sources Vdd1, Vdd2, and Vdd3 of the power source generation unit 32 are transferred to the solid-state imaging device 30. The power supply of the is stopped in the prescribed order.

  FIG. 3 shows the output of the power receiving unit 36 that receives power from the power feeding unit 62 with the horizontal axis indicating the distance of the power receiving unit 36 relative to the power feeding unit 62 according to the distance between the endoscope side connector 17 and the processor side connector 60. The voltage and the voltage of the detection signal detected by the PD 42 (the magnitude of leakage light) are illustrated on the vertical axis. In addition, the distance of the power receiving unit 36 with respect to the power supply unit 62 when the endoscope side connector 17 is attached to the processor side connector 60, that is, the distance at the time of connection is set to zero.

  According to this, when the endoscope side connector 17 is detached from the processor side connector 60, even if the distance of the power receiving unit 36 to the power feeding unit 62 increases from 0 to Loff, the power receiving unit 36 is The power generation unit 32 and the power supply control unit 34 are in a driven state.

  On the other hand, when the distance of the power reception unit 36 with respect to the power supply unit 62 exceeds Loff, the output voltage of the power reception unit 36 rapidly decreases and the operations of the power generation unit 32 and the power supply control unit 34 are stopped due to insufficient power.

  On the other hand, the voltage of the detection signal of the PD 42 (the magnitude of leakage light) gradually increases as the distance of the power receiving unit 36 with respect to the power feeding unit 62 increases from zero.

  Therefore, when such leakage light is detected by the PD 42, the power supply control unit 34 sets the voltage Dth of the detection signal of the PD 42 when the distance of the power reception unit 36 to the power supply unit 62 becomes a threshold Lth that is at least smaller than Loff. As a threshold value, an increase in the distance between the endoscope side connector 17 and the processor side connector 60 was detected when it was detected that the voltage of the detection signal of the PD 42 increased from a value smaller than Dth to a value of the threshold value Dth. Judge that.

  Immediately after this detection, the power reception unit 36 receives power from the power supply unit 62 by stopping the power supply from the power sources Vdd1, Vdd2, and Vdd3 of the power generation unit 32 to the solid-state imaging device 30 in a prescribed order. The driving of the solid-state imaging device 30 can be appropriately stopped before the impossible distance is reached, that is, before the operation of the device stops due to power reduction.

  The voltage of the detection signal of the PD 42 (the magnitude of leakage light) gradually increases as the distance of the power receiving unit 36 from the power feeding unit 62 increases from 0 as shown in FIG. 4 depending on the installation mode such as the installation position of the PD 42. Sometimes it becomes smaller.

  When such leakage light is detected by the PD 42, the power supply control unit 34 uses the voltage Dth of the detection signal of the PD 42 when the distance of the power reception unit 36 to the power supply unit 62 is a threshold value Lth that is at least smaller than Loff as a threshold value. When an increase in the distance between the endoscope side connector 17 and the processor side connector 60 is detected when it is detected that the voltage of the detection signal of the PD 42 has decreased from a value greater than Dth to a value of the threshold value Dth, to decide. Immediately after this detection, the driving of the solid-state imaging device 30 is stopped in the same manner as described above.

  FIG. 5 is a flowchart showing a processing procedure of the power supply control unit 34 regarding the function of preventing damage to the solid-state imaging device. Note that it is defined that the supply of power from the power supplies Vdd1, Vdd2, and Vdd3 of the power generation unit 32 to the solid-state imaging device 30 is stopped in the order of the power supply Vdd3, the power supply Vdd2, and the power supply Vdd1.

  The power supply control unit 34 performs processing illustrated in the flowchart of FIG. 5 in a state where power is supplied from the power sources Vdd1, Vdd2, and Vdd3 of the power generation unit 32 to the solid-state imaging device 30 and the solid-state imaging device 30 is driven. Repeatedly.

  First, the power supply control unit 34 acquires a detection signal indicating the magnitude of leakage light from the PD 42 (step S10). Then, based on the acquired detection signal, it is determined whether or not the distance between the endoscope side connector 17 and the processor side connector 60 has increased (step S12). If NO is determined, the process is terminated.

  On the other hand, when it determines with YES in step S12, the power supply from the power supply Vdd3 of the power generation part 32 to the solid-state image sensor 30 is stopped next (step S14).

  Next, the power supply from the power supply Vdd2 of the power generation unit 32 to the solid-state imaging device 30 is stopped (step S16).

  Next, power supply from the power supply Vdd1 of the power generation unit 32 to the solid-state imaging device 30 is stopped (step S18). As a result, the driving of the solid-state imaging device 30 is safely stopped. Finally, its own operation is stopped (step S20).

  Next, FIG. 6 shows the endoscope system 2 according to the second embodiment among the endoscope systems 2 according to the first to third embodiments in which the specific form of the distance information detecting means is different. The components having the same or similar functions as those in FIG. 2 are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 6, the endoscope 10 has a switch 44 as a distance information detection unit instead of the PD 42 of the first embodiment.

  The switch 44 is, for example, a physical switch, and is turned on when the endoscope side connector 17 is attached (connected) to the processor side connector 60, and when the endoscope side connector 17 is detached from the processor side connector 60. To switch off.

  For example, the switch 44 has a pressing member protruding from the end surface of the endoscope side connector 17. When the endoscope side connector 17 is attached to the processor side connector 60, the pressing member is moved by the end surface of the processor side connector 60. It can be pressed to switch from off to on.

  When this switch 44 is on, it outputs a state signal (in this embodiment, a high level signal) indicating an on state, and when it is off, it outputs a state signal (in this embodiment, a low level signal) that indicates an off state, Those state signals are given to the power supply controller 34 as distance information.

  The state signal of the switch 44 changes depending on the distance between the endoscope side connector 17 and the processor side connector 60, and the distance related to the distance between the endoscope side connector 17 and the processor side connector 60. It corresponds to information, and also corresponds to distance information related to the distance of the power receiving unit 36 relative to the power supply unit 62 as described above.

  Further, the state signal output from the switch 44 may be in any form, and in the present specification, the endoscope side connector 17 is connected to the processor side connector 60 regardless of the form. It is assumed that the state of the switch 44 when attached is on, and the state of the switch 44 when the endoscope side connector 17 is detached from the processor side connector 60 is off.

  The power supply control unit 34 is a switch in a state where the solid-state imaging device 30 is driven, that is, in a state where power is supplied from the power sources Vdd1, Vdd2, and Vdd3 of the power generation unit 32 to the solid-state imaging device 30. Based on the state signal 44, it is detected whether or not the distance between the endoscope side connector 17 and the processor side connector 60 has increased. When this increase is detected, it is assumed that the endoscope-side connector 17 has been removed from the processor-side connector 60, and each power supply Vdd1 of the power supply generation unit 32 is detected as in the first embodiment. , Vdd2, and Vdd3 are stopped in a prescribed order.

  FIG. 7 shows the output of the power receiving unit 36 that receives power from the power feeding unit 62 with the horizontal axis indicating the distance of the power receiving unit 36 with respect to the power feeding unit 62 according to the distance between the endoscope side connector 17 and the processor side connector 60. The voltage and the voltage of the state signal of the switch 44 are illustrated with the vertical axis. Note that the output voltage output from the power receiving unit 36 that has received power from the power supply unit 62 is the same as described with reference to FIG.

  According to this, the voltage of the state signal of the switch 44 is a high level value indicating an ON state when the distance of the power receiving unit 36 with respect to the power feeding unit 62 increases from 0 and the distance becomes a threshold Lth that is at least smaller than Loff. To a low level value indicating an off state.

  Accordingly, when the power supply control unit 34 detects that the voltage of the state signal of the switch 44 has become a value equal to or smaller than the threshold value Dth that is smaller than the high level value, the power supply control unit 34 detects the switching of the switch 44 from on to off. It is determined that an increase in the distance between the endoscope side connector 17 and the processor side connector 60 is detected.

  Immediately after this detection, as in the first embodiment, the power supply unit 32 stops the power supply from the respective power supplies Vdd1, Vdd2, and Vdd3 to the solid-state imaging device 30 in a prescribed order, thereby receiving the power receiving unit. The driving of the solid-state imaging device 30 can be appropriately stopped before 36 reaches a distance where power cannot be received with respect to the power supply unit 62, that is, before the operation of the power supply unit 62 is stopped due to a decrease in power.

  In addition, even when the state signal of the switch 44 is a low level signal in the on state and a high level signal in the off state contrary to FIG. It may be detected that the endoscope side connector 17 has been removed from the processor side connector 60.

  Further, the processing procedure of the power supply control unit 34 relating to the function of preventing damage to the solid-state imaging device 30 in the second embodiment is the same as that of the first embodiment shown in FIG.

  Next, FIG. 8 shows the endoscope system 2 according to the third embodiment among the endoscope systems 2 according to the first to third embodiments in which specific forms of the distance information detecting means are different. The components having the same or similar functions as those in FIG. 2 are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 8, the endoscope 10 includes a position detection coil 48 as a distance information detection unit instead of the PD 42 of the first embodiment.

  The position detection coil 48 is a coil that can be magnetically coupled to the primary coil of the power supply unit 62, and in a state where the endoscope side connector 17 is attached to the processor side connector 60 of the processor device 11. It arrange | positions close to the distance which can be magnetically coupled with a primary coil.

  The position detection coil 48 provides a voltage detection signal corresponding to the distance to the power supply unit 62 (primary coil) to the power supply control unit 34 as distance information.

  Since the detection signal of the position detection coil 48 varies depending on the distance between the endoscope side connector 17 and the processor side connector 60, the detection signal is related to the distance between the endoscope side connector 17 and the processor side connector 60. It corresponds to the distance information and also corresponds to the distance information regarding the distance of the power receiving unit 36 with respect to the power supply unit 62 as described above.

  The power control unit 34 is in a state where the solid-state imaging device 30 is driven, that is, in a state where power is supplied from the power sources Vdd1, Vdd2, and Vdd3 of the power generation unit 32 to the solid-state imaging device 30. Based on the detection signal of the detection coil 48, it is detected whether or not the distance between the endoscope side connector 17 and the processor side connector 60 has increased. When this increase is detected, it is assumed that the endoscope-side connector 17 has been removed from the processor-side connector 60, and each power supply Vdd1 of the power supply generation unit 32 is detected as in the first embodiment. , Vdd2, and Vdd3 are stopped in a prescribed order.

  FIG. 9 shows the output of the power receiving unit 36 that receives power from the power feeding unit 62 with the horizontal axis indicating the distance of the power receiving unit 36 relative to the power feeding unit 62 according to the distance between the endoscope side connector 17 and the processor side connector 60. The voltage and the voltage of the detection signal of the position detection coil 48 are illustrated on the vertical axis. Note that the output voltage output from the power receiving unit 36 that has received power from the power supply unit 62 is the same as described with reference to FIG.

  As shown in the figure, the position detection coil 48 is such that the voltage of the detection signal gradually decreases at a distance where the power receiving unit 36 is smaller than the distance Loff relative to the power feeding unit 62 or a distance where power cannot be received. Shall be.

  Therefore, the power supply control unit 34 uses the voltage Dth of the detection signal of the position detection coil 48 when the distance of the power reception unit 36 relative to the power supply unit 62 is at least a threshold value Lth smaller than Loff as a threshold value. It is determined that an increase in the distance between the endoscope-side connector 17 and the processor-side connector 60 is detected when it is detected that the value of the detection signal is decreased from a value greater than Dth to a threshold value Dth. .

  Immediately after this detection, as in the first embodiment, the power supply unit 32 stops the power supply from the respective power supplies Vdd1, Vdd2, and Vdd3 to the solid-state imaging device 30 in a prescribed order, thereby receiving the power receiving unit. The driving of the solid-state imaging device 30 can be appropriately stopped before 36 reaches a distance where power cannot be received with respect to the power supply unit 62, that is, before the operation of the power supply unit 62 is stopped due to a decrease in power.

    Note that the processing procedure of the power supply control unit 34 related to the damage prevention function of the solid-state imaging device 30 in the third embodiment is the same as that in the first embodiment shown in FIG.

  As described above, in the first to third embodiments, the distance information (information regarding the distance between the endoscope side connector 17 and the processor side connector 60) related to the distance of the power receiving unit 36 with respect to the power supply unit 62 is detected. The endoscope 10 includes an information detection unit and a power supply control unit 34 that stops power supply from the power supplies Vdd1, Vdd2, and Vdd3 of the power supply generation unit 32 to the solid-state imaging device 30 in a specified order based on the distance information. The mode in the case of mounting is shown.

  On the other hand, for example, distance information detection means similar to those of the first and second embodiments is mounted on the processor device 11 as shown in the endoscope system 2 of the fourth embodiment of FIG. Information detecting means 70), and the distance information detected by the distance information detecting means 70 is acquired by the control unit 64 of the processor device 11 and given to the power supply control unit 34 of the endoscope 10 through the non-contact type communication means 52. Also good.

  Further, the control of the power generation unit 32 performed by the power control unit 34 can also be performed by a control signal given to the power generation unit 32 by the control unit 64 of the processor device 11 through the non-contact type communication unit 52. 10 can be made unnecessary.

  In the first to fourth embodiments, transmission / reception of various signals between the internal circuit of the endoscope 10 and the internal circuit of the processor device 11 is performed non-contact (optically coupled) by the non-contact communication unit 52. However, it is not necessarily performed in a non-contact manner, and the internal circuit of the endoscope 10 and the internal circuit of the processor device 11 do not have to be insulated by an isolation device. That is, the non-contact power supply means 50 that transmits power from the processor device 11 to the endoscope 10 is not intended to insulate between the internal circuit of the endoscope 10 and the internal circuit of the processor device 11, but to the endoscope. When the mirror-side connector 17 is detached from the processor-side connector 60, the time during which the power supply from the processor device 11 to the endoscope 10 is not stopped is a time for appropriately stopping the power supply to the solid-state imaging device 30. The purpose may be to ensure.

  In addition, as in the first to fourth embodiments, the present invention provides a rechargeable battery, a control device for controlling the driving of the solid-state imaging device 30 when the endoscope-side connector 17 is detached from the processor-side connector 60. Since no power storage means such as a capacitor as a backup power supply is required, the endoscope 10 can be an endoscope in which the power storage means is not mounted. Therefore, it is possible to reduce the need for maintenance due to deterioration of the power storage means.

  The processor device 11 in the endoscope system 2 shown in FIG. 1 includes a light source device that supplies illumination light emitted from the illumination window of the endoscope distal end portion 14 to the endoscope 10. The endoscope-side connector 17 of the endoscope 10 and the processor-side connector 60 of the processor device 11 are components as electrical connectors that transmit and receive electric power and electrical signals as shown in FIGS. 2, 6, 8, and 10. In addition, a component as a light guide connector that transmits illumination light, which is omitted in those drawings, from the processor device 11 to the endoscope 10 is also integrally provided.

  For example, as shown in FIG. 11, the endoscope side connector 17 is provided with a light guide rod 17 </ b> A from which a light guide communicating from the endoscope distal end portion 14 protrudes. When the endoscope side connector 17 is attached to the processor side connector 60, the light guide bar 17A is inserted into the processor device 11 through the opening 60A provided in the processor side connector 60, and is optically coupled to the light source device. Connected to.

  In the endoscope side connector 17 and the processor side connector 60 having such a configuration, as described above, the distance Loff at which the power reception unit 36 switches from the distance at which the power reception unit 36 can receive power to the power supply unit 62 to the distance at which power reception cannot be performed ( 4, 7, and 9), that is, the maximum distance Loff that the power receiving unit 36 can receive power to the power feeding unit 62 is determined from the length of the light guide rod 17A (insertion length from the opening 60A to the inside of the processor device 11) It is possible to make the configuration shorter.

  At this time, the operation when the endoscope-side connector 17 is detached from the processor-side connector 60 is detected by the distance information detecting means as specifically shown in the endoscope system 2 of the first to third embodiments. In this case, it is preferable to stop the emission of illumination light from the light source device (stop the light emission itself or block the optical path to the light guide rod 17A).

  This prevents illumination light from being projected outside the endoscope 10 from the opening 60A of the processor-side connector 60 from which the endoscope-side connector 17 has been removed.

  Further, unlike the endoscope system 2 shown in FIG. 1, the processor device 11 does not have a built-in light source device, but supplies illumination light emitted from the illumination window of the endoscope distal end portion 14 as shown in FIG. The light source device 12 may be configured as a separate device from the processor device 11. In this case, for example, a light guide connector 16 attached to the light source device 12 is provided at an end portion of the universal cord 18 of the endoscope 10, and an extension cable extending from the light guide connector 16 is provided. A connector 17 attached to the processor device 11 is provided. At this time, the connector 17 corresponds to the endoscope-side connector 17 having the same reference numeral shown in the first to fourth embodiments.

  Vdd1, Vdd2, Vdd3 ... power supply, 2 ... endoscope system, 10 ... electronic endoscope (endoscope), 11 ... processor device for processor (processor device), 12 ... light source device, 13 ... endoscope Insertion part (insertion part), 14 ... End of endoscope (tip), 15 ... Operation part, 16 ... LG connector, 17 ... Connector (endoscope side connector), 18 ... Universal cord, 19 ... Monitor, 30 DESCRIPTION OF SYMBOLS ... Solid-state image sensor 32 ... Power supply generation part 34 ... Power supply control part 36 ... Power receiving part 38, 68 ... LED, 40, 66 ... PD, 44 ... Switch, 48 ... Coil for position detection, 50 ... Non-contact power Supply means 52 ... Non-contact type communication means 60 ... Processor-side connector 60A ... Guide rod 62 ... Power feeding part 64 ... Control part 70 ... Distance information detection means 80 ... Input device

Claims (13)

From a power receiving unit that receives power in a non-contact manner from a power feeding unit, a power generation unit that generates a plurality of power sources having different voltages from the power received by the power receiving unit, and a plurality of power sources generated by the power generation unit An endoscope comprising: a solid-state imaging device driven by supplied power; and an endoscope processor device that includes the power feeding unit and is detachably connected to the endoscope. In the system,
Distance information detecting means for detecting distance information related to the distance of the power receiving unit with respect to the power feeding unit;
Based on the distance information detected by the distance information detection means, when detecting the displacement of the power receiving unit in a direction away from the power feeding unit, the power receiving unit is unable to receive power from the power feeding unit. A power control unit that stops the supply of power from each of the plurality of power sources of the power generation unit to the solid-state imaging device in a specified order before
Endoscope system equipped with.   The endoscope system according to claim 1, wherein the distance information detection unit and the power supply control unit are provided in the endoscope.   The power control unit is driven by the power supplied from the power receiving unit, and before the power supplied from the power receiving unit is insufficient and the operation of the power source control unit stops, The endoscope system according to claim 2, wherein supply of electric power from each to the solid-state imaging device is stopped in a prescribed order. The power receiving unit is installed at a position of a connection time distance capable of receiving power with respect to the power feeding unit in a state where the endoscope is connected to the endoscope processor device.
When the power supply control unit detects an increase in the distance of the power reception unit relative to the power supply unit from the connection distance based on the distance information detected by the distance information detection unit, the power supply control unit The endoscope system according to claim 1, 2, or 3, wherein it is determined that a displacement of the power reception unit in a separating direction is detected. The endoscope has an endoscope-side connector that is detachably connected to a processor-side connector of the endoscope processor device.
The power receiving unit is installed at the connection distance with respect to the power feeding unit in a state where the endoscope side connector is connected to the processor side connector, and the endoscope side connector is connected to the processor side With the increase in the distance between the endoscope side connector and the processor side connector when removed from the connector, the distance of the power reception unit relative to the power supply unit increases from the connection time distance,
The distance information detection means is detection means for detecting information on a distance between the endoscope side connector and the processor side connector as the distance information,
The power control unit increases a distance between the endoscope side connector and the processor side connector when the endoscope side connector is detached from the processor side connector in a state where the endoscope side connector is attached to the processor side connector. The endoscope system according to claim 4, wherein a distance of the power receiving unit with respect to the power feeding unit is detected as an increase from the connection distance. The endoscope processor device has a communication light emitting means for transmitting an optical signal for performing non-contact communication with the endoscope through the processor side connector,
The endoscope has a communication light receiving means for receiving the optical signal through the endoscope side connector,
The distance information detection means is a distance information detection light-receiving means for detecting, as the distance information, the magnitude of leakage light of the optical signal transmitted from the communication light-emitting means,
The power control unit increases a distance between the endoscope side connector and the processor side connector when the endoscope side connector is detached from the processor side connector in a state where the endoscope side connector is connected to the processor side connector. The endoscope system according to claim 5, which is detected by increasing or decreasing the leakage light. The distance information detecting means is a physical switch that is turned on when the endoscope side connector is connected to the processor side connector and turned off when the endoscope side connector is detached from the processor side connector. And
The power control unit increases a distance between the endoscope side connector and the processor side connector when the endoscope side connector is detached from the processor side connector in a state where the endoscope side connector is connected to the processor side connector. The endoscope system according to claim 5, which is detected by switching the switch from on to off. The power receiving unit receives power by magnetic coupling with the power feeding unit,
The distance information detection means is a coil that is magnetically coupled to the power feeding unit,
The power control unit increases a distance between the endoscope side connector and the processor side connector when the endoscope side connector is detached from the processor side connector in a state where the endoscope side connector is attached to the processor side connector. The endoscope system according to claim 5, wherein the signal is detected by a decrease in the output value of the coil. The endoscope processor device includes a light source device that supplies illumination light to irradiate an observation site of the endoscope to the endoscope,
The said endoscope side connector and the said processor side connector were integrally provided with the light guide connector which transmits the illumination light from the said light source device to the said endoscope. Endoscope system. The endoscope-side connector has a light guide bar that is inserted into the endoscope processor device from an opening of the processor-side connector,
The endoscope system according to claim 9, wherein a distance at which the power receiving unit switches from a distance at which the power receiving unit can receive power to a distance at which power cannot be received is shorter than a length of the light guide rod.   The endoscope system according to claim 1, wherein the solid-state imaging device is a charge coupled device.   The endoscope system according to any one of claims 1 to 11, wherein the endoscope has no power storage means serving as a power source.   The endoscope which comprises the endoscope system of any one of Claim 1 to 12, Comprising: The endoscope provided with the said distance information detection means and the said power supply control part.

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