WO2018230068A1 - Dispositif d'endoscope - Google Patents

Dispositif d'endoscope Download PDF

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Publication number
WO2018230068A1
WO2018230068A1 PCT/JP2018/010754 JP2018010754W WO2018230068A1 WO 2018230068 A1 WO2018230068 A1 WO 2018230068A1 JP 2018010754 W JP2018010754 W JP 2018010754W WO 2018230068 A1 WO2018230068 A1 WO 2018230068A1
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WO
WIPO (PCT)
Prior art keywords
unit
power
signal
endoscope
control
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Application number
PCT/JP2018/010754
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English (en)
Japanese (ja)
Inventor
泰宏 西垣
秀之 釘宮
Original Assignee
オリンパス株式会社
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Publication date
Application filed by オリンパス株式会社 filed Critical オリンパス株式会社
Priority to JP2018549285A priority Critical patent/JPWO2018230068A1/ja
Publication of WO2018230068A1 publication Critical patent/WO2018230068A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes

Definitions

  • the present invention relates to an endoscope apparatus that images a subject and generates image data of the subject.
  • each of the control unit and the endoscope is provided with a transceiver having a power channel and a data channel to wirelessly transmit power and control data.
  • Patent Document 1 since power and control data are transmitted using the same transceiver, an abnormality occurs in the functional device in the endoscope, and an error signal indicating this abnormality is controlled from the endoscope.
  • an error signal In the case of transmission to the unit, when the communication state between the endoscope and the control unit is unstable, an error signal cannot be received by the control unit, the control of the functional device in the endoscope is delayed, and the subject It was difficult to continue observation.
  • the present invention has been made in view of the above, and provides an endoscope apparatus that can reliably transmit an error signal regardless of the communication state even when power is supplied by non-contact wireless communication.
  • the purpose is to do.
  • an endoscope apparatus is an endoscope apparatus having an insertion portion that is inserted into a subject, and is disposed in the insertion portion.
  • a functional device that executes a predetermined function, and a power receiving unit that is disposed in the insertion unit and receives power supplied from the outside in a non-contact manner by an electromagnetic induction method or a magnetic resonance method, and outputs the power to the functional device
  • An abnormality detection unit that is disposed in the insertion unit and detects whether or not an abnormality has occurred in the functional device, and that is disposed in the insertion unit and controls driving of the functional device, and the abnormality detection unit
  • a control unit that outputs an operation error signal indicating that an abnormality has occurred in the functional device, and the operation error signal are arranged in the insertion unit. Characterized in that it comprises a signal transmission unit for transmitting to the outside is converted into signals.
  • the endoscope apparatus further includes an endoscope camera head that is detachably attached to the endoscope, and the endoscope camera head has an electromagnetic induction method or a magnetic field with respect to the power receiving unit.
  • a power transmission unit that supplies power in a contactless manner by a resonance method is provided.
  • the endoscope camera head includes a signal receiving unit that receives the optical signal output from the signal transmitting unit, and the signal receiving unit includes the optical signal. And a power control unit that stops power feeding by the power transmission unit when the power is received.
  • the functional device irradiates the subject with illumination light, a fog prevention unit for preventing fogging of an observation window provided at a distal end of the insertion part, and the subject. It is one or more of an illumination unit, a treatment device that performs treatment on the subject, a memory that records information about the insertion unit, and a power storage that stores electric power provided in the insertion unit.
  • the endoscope apparatus is the above invention, wherein the power receiving unit includes a first coil and a power receiving circuit for receiving the power via the first coil,
  • the power transmission unit includes a second coil and a transmission circuit that transmits the power through the second coil.
  • the endoscope apparatus includes an operation unit that is connected to a proximal end side of the insertion unit and that receives an input of an instruction signal for operating the endoscope, and the operation unit receives the power reception It is characterized by comprising a power transmission unit that supplies power to the unit in a non-contact manner by an electromagnetic induction method or a magnetic field resonance method.
  • the operation unit receives the optical signal output from the signal transmission unit, and the signal reception unit receives the optical signal.
  • the power transmission device further includes a power control unit that stops power feeding by the power transmission unit.
  • the endoscope apparatus is the endoscope apparatus according to the above-described invention, wherein the endoscope device is disposed in the insertion unit and images the subject to generate an image signal, and the image signal generated by the imaging unit is An image signal transmission unit that converts the signal into an optical signal and transmits the signal to the outside, wherein the functional device is the imaging unit.
  • the insertion portion includes a distal end portion that is inserted into the subject, a proximal end portion that is exposed when the insertion portion is inserted into the subject,
  • the functional device and the abnormality detection unit are arranged at the tip.
  • FIG. 1 is a diagram showing a schematic configuration of an endoscope system according to Embodiment 1 of the present invention.
  • FIG. 2 is a block diagram showing a functional configuration of a main part of the endoscope system according to Embodiment 1 of the present invention.
  • FIG. 3 is a flowchart showing an outline of processing executed by the insertion unit according to Embodiment 1 of the present invention.
  • FIG. 4 is a diagram showing a schematic configuration of the endoscope system according to Embodiment 2 of the present invention.
  • FIG. 5 is a block diagram illustrating a functional configuration of a main part of the endoscope system according to the second embodiment of the present invention.
  • FIG. 6 is a flowchart showing an outline of processing executed by the distal end portion according to Embodiment 2 of the present invention.
  • FIG. 1 is a diagram showing a schematic configuration of an endoscope system according to Embodiment 1 of the present invention.
  • An endoscope system 1 shown in FIG. 1 is a system that is used in the medical field and observes the inside of a subject such as a living body.
  • this Embodiment 1 demonstrates the rigid endoscope system using the rigid endoscope (insertion part 2 which is an endoscope) shown in FIG. 1 as the endoscope system 1, it is limited to this.
  • the endoscope system may include a flexible endoscope.
  • the present invention can be applied even outside the medical field, and can be applied even to an industrial endoscope system including an industrial endoscope.
  • an endoscope system 1 includes an insertion portion 2, a light source device 3, a light guide 4, an endoscope camera head 5 (an endoscope imaging device), and a first transmission cable. 6, a display device 7, a second transmission cable 8, a control device 9, and a third transmission cable 10.
  • the insertion part 2 is hard or at least partly soft and has an elongated shape.
  • the insertion unit 2 is inserted into a subject such as a patient and forms an observation image of the subject through an observation window (not shown) provided at the tip.
  • the insertion section 2 has an optical system (for example, an objective lens) that forms an observation image through an observation window and a functional device having a predetermined function, and is inserted into a subject such as a patient. 21, a proximal end portion 22 provided with a control board for controlling a device provided at the distal end portion 21 of the insertion portion 2, and an eyepiece portion 23 detachably connected to the endoscope camera head 5.
  • the insertion unit 2 functions as an endoscope.
  • the light source device 3 is connected to one end of the light guide 4 and supplies visible light or special light for illuminating the inside of the subject to one end of the light guide 4 under the control of the control device 9.
  • the light guide 4 has one end detachably connected to the light source device 3 and the other end detachably connected to the insertion portion 2.
  • the light guide 4 transmits light supplied from the light source device 3 from one end to the other end and supplies the light to the insertion portion 2.
  • the endoscope camera head 5 is detachably connected to the eyepiece 23 of the insertion section 2.
  • the endoscope camera head 5 generates an image signal (electrical signal) by receiving an observation image formed by the insertion unit 2 and performing photoelectric conversion under the control of the control device 9, and this generation is performed.
  • the image signal is output to the control device 9 via the first transmission cable 6.
  • the insertion unit 2 and the endoscope camera head 5 function as an endoscope apparatus.
  • the first transmission cable 6 transmits an image signal output from the endoscope camera head 5 to the control device 9 and transmits a control signal, a synchronization signal, a clock, power, and the like output from the control device 9 to the endoscope. Transmit to the camera head 5.
  • the display device 7 displays an observation image based on the video signal processed in the control device 9 and various information related to the endoscope system 1 under the control of the control device 9.
  • the display device 7 is configured using liquid crystal, organic EL (Electro Luminescence), or the like.
  • the display device 7 has a monitor size of 31 inches or more, preferably 55 inches or more.
  • the display device 7 is configured using liquid crystal, organic EL (Electro Luminescence), or the like.
  • the display device 7 has a monitor size of 31 inches or more.
  • the display device 7 is not limited to this, and other monitor sizes, for example, 2 megapixels (for example, a so-called 2K resolution of 1920 ⁇ 1080 pixels) or more.
  • An image having a resolution of 8 megapixels for example, 3840 ⁇ 2160 pixels, so-called 4K resolution
  • 32 megapixels for example, 7680 ⁇ 4320 pixels, so-called 8K resolution
  • Any monitor size is possible.
  • the second transmission cable 8 has one end detachably connected to the display device 7 and the other end detachably connected to the control device 9.
  • the second transmission cable 8 transmits the video signal processed by the control device 9 to the display device 7.
  • the control device 9 includes a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), various memories, and the like, and according to a program recorded in the memory (not shown), the first transmission cable 6 and the second transmission cable 6
  • the operations of the light source device 3, the endoscope camera head 5 and the display device 7 are comprehensively controlled through the transmission cable 8 and the third transmission cable 10, respectively.
  • the third transmission cable 10 has one end detachably connected to the light source device 3 and the other end detachably connected to the control device 9.
  • the third transmission cable 10 transmits a control signal from the control device 9 to the light source device 3.
  • FIG. 2 is a block diagram illustrating a functional configuration of a main part of the endoscope system 1.
  • the insertion portion 2 has a thin shape, a distal end portion 21 that is inserted into the subject, a proximal end portion 22 that is exposed when the insertion portion 2 is inserted into the subject, Have The distal end portion 21 and the proximal end portion 22 are integrally formed.
  • the front end portion 21 includes a fog prevention unit 211 that functions as a functional device, a drive unit 212, a temperature detection unit 213, and a current detection unit 214.
  • the anti-fogging part 211 is provided in contact with or around the optical system or observation window (not shown) of the tip part 21 and generates heat based on the voltage applied via the drive part 212 to make the observation window or optical system. Heating or warming prevents fogging that occurs in the observation window and optical system.
  • the fog prevention unit 211 is configured using, for example, a heat generating member or a heater. Note that the anti-fogging unit 211 may be cooled not only for heating but also for the observation window, for example. In this case, the fog prevention unit 211 may be configured with a Peltier element, a heat pipe, or the like. In the first embodiment, the anti-fogging unit 211 functions as a functional device.
  • the drive unit 212 controls the power supplied from the power generation unit 222 of the base end 22 described later to a predetermined voltage under the control of the first control unit 225 of the base end 22 described later to prevent fogging. A voltage is applied to the unit 211.
  • the temperature detection unit 213 detects the temperature of the anti-fogging unit 211 and outputs the detection result to the first control unit 225 of the base end 22 described later.
  • the temperature detection unit 213 is configured using, for example, a thermistor.
  • the temperature detection unit 213 is configured using a plurality of thermistors and the like, and outputs a detection result related to the temperature detected by each of the plurality of thermistors to the first control unit 225 of the base end 22 described later. May be.
  • the temperature detection unit 213 functions as an abnormality detection unit.
  • the current detection unit 214 detects the current value supplied to the anti-fogging unit 211, and outputs the detection result to the first control unit 225 of the base end 22 described later.
  • the base end unit 22 includes a power receiving unit 221, a power generation unit 222, a first recording unit 223, a signal transmission unit 224, and a first control unit 225.
  • the power reception unit 221 receives power from a magnetic field generated from the power transmission unit 54 of the endoscope camera head 5 to be described later, generates power, and outputs the generated power to the power generation unit 222.
  • the power receiving unit 221 receives electric power from the outside by non-contact radio by an electromagnetic induction method or a magnetic field resonance method.
  • the power receiving unit 221 includes a power receiving coil 221a (first coil) and a power receiving circuit 221b that receives power via the power receiving coil 221a.
  • the power receiving coil 221a feeds power to the insertion portion 2 in a non-contact manner by a magnetic field resonance method.
  • the power receiving coil 221a is magnetically coupled to a power transmitting coil 541 of a power transmitting portion 54 described later and is dielectrically generated by an alternating magnetic field (magnetic flux) generated by the power transmitting coil 541. Generate current.
  • the power reception circuit 221 b rectifies the dielectric current generated in the power reception coil 221 a and outputs the rectified current to the power generation unit 222.
  • the power generation unit 222 adjusts the voltage of the power input from the power reception unit 221 to the voltage of various devices at the tip 21 and outputs the adjusted voltage. Specifically, the power generation unit 222 converts the voltage of the power supplied from the power reception unit 221 to, for example, 5V to 3.3V, and drives the drive unit 212, the temperature detection unit 213, the signal transmission unit 224, and the first Power is supplied to each of the control units 225.
  • the power generation unit 222 is configured using a voltage regulator IC or the like.
  • the first recording unit 223 records various programs executed by the insertion unit 2.
  • the first recording unit 223 is configured using a volatile memory or a nonvolatile memory.
  • the signal transmission unit 224 converts the signal output from the first control unit 225 into an optical signal and transmits it to the endoscope camera head 5.
  • the signal transmission unit 224 is configured using an E / O conversion circuit.
  • the signal transmission unit 224 is configured using an infrared light emitting element that optically transmits a signal (infrared), and transmits the signal to the endoscope camera head 5 by non-contact optical data communication using IrDA (Infrared Date Association). .
  • IrDA Infrared Date Association
  • the signal transmission unit 224 may transmit an optical signal to the endoscope camera head 5 by optical communication according to another known technique.
  • the first control unit 225 controls the driving of the fog prevention unit 211 via the drive unit 212.
  • the first control unit 225 is configured using a CPU (Central Processing Unit). Further, the first control unit 225 controls the driving of the fog prevention unit 211 based on the detection result of the temperature detection unit 213 and the detection result of the current detection unit 214. Further, the first control unit 225 determines whether or not an abnormality has occurred in the fog prevention unit 211 based on the detection result of the temperature detection unit 213 and the detection result of the current detection unit 214, and When an abnormality has occurred, an operation error signal indicating that an abnormality has occurred in the fog prevention unit 211 is output to the signal transmission unit 224.
  • a CPU Central Processing Unit
  • the endoscope camera head 5 includes an imaging unit 51, an A / D conversion unit 52, an E / O conversion unit 53, a power transmission unit 54, a power control unit 55, a signal reception unit 56, and a second input.
  • the imaging unit 51 generates an image signal by receiving an observation image formed by an optical system (not shown) of the insertion unit 2 and performing photoelectric conversion under the control of the second control unit 59.
  • the data is output to the A / D converter 52.
  • the imaging unit 51 is configured using an image sensor such as a CMOS (Complementary Metal Oxide Semiconductor) or a CCD (Charge Coupled Device).
  • the number of effective pixels of the image sensor used in the imaging unit 51 is 8 megapixels (for example, 3840 ⁇ 2160 pixels, so-called 4K resolution) or more, and preferably 32 megapixels (for example, 7680 ⁇ 4320 pixels, so-called 8K resolution). That's it.
  • a zoom function and a focus function may be provided in the optical system.
  • the optical system of the imaging unit 51 may be omitted.
  • the A / D conversion unit 52 performs A / D conversion processing on the analog image signal input from the imaging unit 51 under the control of the second control unit 59 to generate digital image data,
  • the digital image data is output to the E / O converter 53.
  • the E / O conversion unit 53 performs an E / O conversion process on the digital image data input from the A / D conversion unit 52 under the control of the second control unit 59 to perform image data of the optical signal. And output the image data of this optical signal to the control device 9.
  • the power transmission unit 54 supplies power to the power reception unit 221 by generating a magnetic field by an electromagnetic induction method or a magnetic field resonance method under the control of the power control unit 55.
  • the power transmission unit 54 includes a power transmission coil 541 (second coil) and a transmission circuit 542 that transmits power via the power transmission coil 541.
  • the power control unit 55 controls the power supplied from the power transmission unit 54 to the power reception unit 221 under the control of the second control unit 59. Specifically, the power control unit 55 controls the power supplied from the power transmission unit 54 to the power reception unit 221 by controlling the strength of the magnetic field generated by the power transmission unit 54.
  • the second input unit 57 receives input of various instruction signals related to the endoscope camera head 5, and outputs the received instruction signals to the second control unit 59. Specifically, the second input unit 57 receives an input of a release signal and a capture signal instructing the imaging unit 51 to perform shooting, and outputs the received release signal and capture signal to the second control unit 59.
  • the second input unit 57 is configured using a switch, a button, a jog dial, and the like.
  • the second recording unit 58 records various programs executed by the endoscope camera head 5, data being processed, and the like.
  • the second recording unit 58 is configured using a volatile memory or a nonvolatile memory.
  • the signal reception unit 56 receives the optical signal transmitted from the signal transmission unit 224, converts the received optical signal into an electrical signal, and outputs the electrical signal to the second control unit 59.
  • the signal receiving unit 56 is configured using an O / E conversion circuit.
  • the signal receiving unit 56 is configured using a light receiving element (such as a photodiode or a phototransistor) that receives an optical signal.
  • the second control unit 59 controls each part of the endoscope camera head 5 in an integrated manner. In addition, when the operation error signal is input from the signal receiving unit 56, the second control unit 59 causes the power control unit 55 to stop supplying power to the power transmission unit 54.
  • the second control unit 59 is configured using a CPU or the like.
  • the control device 9 includes an O / E conversion unit 91, an image processing unit 92, a third input unit 93, a third recording unit 94, and a third control unit 95.
  • the O / E conversion unit 91 performs O / E conversion processing on the image data of the optical signal input from the E / O conversion unit 53 of the endoscope camera head 5 via the first transmission cable 6. It is converted into digital image data and output to the image processing unit 92.
  • the image processing unit 92 performs predetermined image processing on the digital image data input from the O / E conversion unit 91 and outputs the digital image data to the display device 7.
  • the predetermined image processing includes, for example, demosaicing processing, white balance processing, and ⁇ correction processing.
  • the third input unit 93 receives input of various instruction signals related to the control device 9 and outputs the received instruction signals to the third control unit 95.
  • the third input unit 93 is configured using buttons, switches, a touch panel, a jog dial, and the like.
  • the third recording unit 94 records various programs executed by the control device 9, data being processed, and the like.
  • the third recording unit 94 is configured using a volatile memory or a nonvolatile memory.
  • the third control unit 95 comprehensively controls each unit constituting the control device 9.
  • the third control unit 95 is configured using a CPU or the like.
  • FIG. 3 is a flowchart showing an outline of processing executed by the insertion unit 2.
  • the power reception unit 221 receives a magnetic field generated from the power transmission unit 54 of the endoscope camera head 5 and starts feeding (step S101).
  • the first control unit 225 drives the drive unit 212 to turn the fog prevention unit 211 into a power-on state (step S102).
  • the temperature detection unit 213 detects the temperature of the anti-fogging unit 211 (step S103), and the current detection unit 214 detects current (step S104).
  • the first control unit 225 determines whether there is an abnormality in the insertion unit 2 based on the temperature detected by the temperature detection unit 213 and the current detected by the current detection unit 214 (step S105). Specifically, first, the first control unit 225 detects the temperature detected by the temperature detection unit 213, and determines whether this temperature is outside a predetermined range. The first control unit 225 determines whether or not the current value detected by the current detection unit 214 is within the predetermined range when the temperature detected by the temperature detection unit 213 is outside the predetermined range. When the current value is outside the predetermined range, it is determined that an abnormality has occurred in the fog prevention unit 211.
  • step S105: Yes the insertion unit 2 proceeds to step S106 described below.
  • step S105: No the insertion unit 2 proceeds to step S108 described later.
  • step S106 the first control unit 225 stops the driving of the driving unit 212, thereby setting the fog prevention unit 211 to a power-off state.
  • the first control unit 225 causes the signal transmission unit 224 to transmit an operation error signal indicating that an abnormality has occurred in the insertion unit 2 toward the signal reception unit 56 of the endoscopic camera head 5 (step). S107). Specifically, the first control unit 225 outputs an operation error signal to the signal transmission unit 224. Then, the signal transmission unit 224 converts the operation error signal into an optical signal under the control of the first control unit 225 and transmits it to the signal reception unit 56 of the endoscope camera head 5. Accordingly, when the second control unit 59 receives an operation error signal from the insertion unit 2 via the power transmission unit 54, the second control unit 59 controls the power control unit 55 to stop the power supply by the power transmission unit 54.
  • the second control unit 59 may transmit a signal indicating that the power supply by the power transmission unit 54 is stopped to the third control unit 95.
  • the third control unit 95 may cause the display device 7 to display information indicating that an abnormality has occurred in the insertion unit 2 via the image processing unit 92. After step S107, the insertion unit 2 ends this process.
  • step S108 the first control unit 225 controls the driving of the driving unit 212 based on the temperature detected by the temperature detecting unit 213 and the current detected by the current detecting unit 214, thereby turning on / off the anti-fogging unit 211. Take control.
  • step S109 when the power supply from the power transmission unit 54 is completed (step S109: Yes), the first control unit 225 stops the driving of the driving unit 212, thereby changing the state of the fog prevention unit 211 to the power-off state. To stop (step S110). After step S110, the insertion unit 2 ends this process.
  • step S109 when the power supply from the power transmission unit 54 is not completed (step S109: No), the insertion unit 2 returns to step S103 described above.
  • an operation error signal can be reliably transmitted regardless of the communication state between the insertion unit 2 and the endoscope camera head 5. Can be sent.
  • the first control unit 225 controls the fog prevention unit 211 provided in the insertion unit 2. , Complex control can be performed.
  • the first control unit 225 directs the operation error signal indicating that an abnormality has occurred in the insertion unit 2 to the signal reception unit 56 of the endoscope camera head 5. Since the signal is transmitted to the signal transmission unit 224, power supply can be reliably stopped.
  • the anti-fogging portion 211 is provided as a functional device provided at the distal end portion 21 of the insertion portion 2.
  • the present invention is not limited to this, and other functional devices may be used. Also good.
  • an illumination device including an LED (Light Emitting Diode) lamp that irradiates illumination light toward the subject and the subject are imaged.
  • An image device such as a CMOS or CCD, a memory device that records various information about the insertion unit 2, a treatment device that performs treatment, an actuator of the treatment device, a power regulator that regulates power to a predetermined voltage, a power storage device, Alternatively, an actuator that moves the optical system provided in the insertion portion 2 along the optical axis direction may be used.
  • an illumination device is disposed at the distal end portion 21 of the insertion portion 2
  • an acceleration sensor and a gyro sensor that detect the posture of the insertion portion 2 are disposed at the distal end portion 21 instead of the temperature detection portion 213.
  • the first controller 225 may control the driving of the lighting device based on the detection results of each gyro sensor.
  • the first control unit 225 has an angle formed by a predetermined axis (for example, an optical axis) of the insertion unit 2 and the direction of gravity equal to or greater than a predetermined value (for example, If it is horizontal or higher), irradiation with the lighting device may be stopped.
  • a predetermined axis for example, an optical axis
  • a predetermined value for example, If it is horizontal or higher
  • the current detection unit 214 is provided at the distal end portion 21, but the present invention is not limited thereto, and the current detection unit 214 may be provided at the proximal end portion 22, for example.
  • the endoscope camera head 5 is provided with the power transmission unit 54 and the power control unit 55.
  • the present invention is not limited thereto, and may be provided in the control device 9, for example.
  • the power transmission unit 54 and the power control unit 55 may be separately provided as an intermediate unit or a power supply unit.
  • FIG. 4 is a diagram showing a schematic configuration of the endoscope system according to Embodiment 2 of the present invention.
  • An endoscope system 1a shown in FIG. 4 is a system that is used in the medical field and observes the inside of a subject such as a living body.
  • a flexible endoscope system using the distal end portion of the endoscope shown in FIG. 4 will be described as the endoscope system 1a.
  • An endoscope system including an endoscope may be used.
  • the present invention can be applied even outside the medical field, and can be applied even to an industrial endoscope system including an industrial endoscope.
  • the endoscope system 1a includes an endoscope 2a, a light source device 3, a first transmission cable 6a, a display device 7, a second transmission cable 8, and a control device 9a.
  • the connector part 12 is provided.
  • the endoscope 2a inserts the insertion portion 100, which is a part of the first transmission cable 6a, into the body cavity of the subject, images the inside of the subject, and outputs an image signal to the control device 9a. Further, the endoscope 2a is one end side of the first transmission cable 6a, and a distal end portion having an image pickup device for capturing an in-vivo image on the distal end 101 side of the insertion portion 100 inserted into the body cavity of the subject. 21 a is provided, and an operation portion 26 (base end portion) that receives various operations on the endoscope 2 a is provided on the proximal end 102 side of the insertion portion 100. The operation unit 26 may be detachable from the insertion unit 100 or may be fixed. In the second embodiment, a mechanism including at least the endoscope 2a and the operation unit 26 functions as an endoscope apparatus.
  • the first transmission cable 6 a connects the endoscope 2 a and the connector unit 12, and connects the endoscope 2 a and the light source device 3. In addition, the first transmission cable 6 a propagates the image signal generated by the endoscope 2 a to the connector unit 12.
  • the first transmission cable 6a is configured using a cable, an optical fiber, or the like.
  • the control device 9 a performs predetermined image processing on the image signal input from the connector unit 12 and outputs the image signal to the display device 7.
  • the control device 9a controls the entire endoscope system 1a in an integrated manner. For example, the control device 9a performs control to switch the illumination light emitted from the light source device 3 or switch the imaging mode of the endoscope 2a.
  • the connector unit 12 is connected to the endoscope 2a, the control device 9a, and the light source device 3, and performs predetermined signal processing on an image signal output from the connected endoscope 2a and digitally captures an analog image signal. It converts into a signal (A / D conversion), and outputs it to the control apparatus 9a.
  • FIG. 5 is a block diagram illustrating a functional configuration of a main part of the endoscope system 1a.
  • the front end 21a includes a fog prevention unit 211, a drive unit 212, a temperature detection unit 213, a current detection unit 214, a power reception unit 221, a power generation unit 222, and a first recording.
  • the imaging drive unit 230 and the abnormality detection unit 231 are included.
  • the first signal transmission unit 224a converts the signal output from the first control unit 225a into an optical signal and transmits it to the operation unit 26.
  • the first signal transmission unit 224a is configured using an E / O conversion circuit.
  • the first signal transmission unit 224a is configured using an infrared light emitting element that optically transmits a signal (infrared), and transmits the signal to the operation unit 26 by non-contact optical data communication using IrDA.
  • the first control unit 225a controls the driving of the anti-fogging unit 211 via the driving unit 212.
  • the first control unit 225a is configured using a CPU (Central Processing Unit). Further, the first control unit 225a controls the driving of the fog prevention unit 211 based on the detection result of the temperature detection unit 213 and the detection result of the current detection unit 214. Further, the first control unit 225a determines whether or not an abnormality has occurred in the fog prevention unit 211 based on the detection result of the temperature detection unit 213 and the detection result of the current detection unit 214, and When an abnormality has occurred, an operation error signal indicating that an abnormality has occurred in the fog prevention unit 211 is output to the first signal transmission unit 224a.
  • a CPU Central Processing Unit
  • the first control unit 225a drives the imaging drive unit 230 based on the control data received by the first signal reception unit 229 to cause the imaging unit 226 to image the subject. Furthermore, when the abnormality detection unit 231 detects an abnormality, the first control unit 225a outputs an operation error signal indicating that an abnormality has occurred in the imaging unit 226 to the first signal transmission unit 224a.
  • the imaging unit 226 receives an observation image of a subject and performs photoelectric conversion under the control of the first control unit 225a to generate an image signal and output the image signal to the A / D conversion unit 227.
  • the imaging unit 226 is configured using an optical system that forms an observation image of a subject, and an image sensor such as a CMOS or CCD that receives the observation image formed by the optical system and generates an image signal. Note that a zoom function or a focus function may be provided in the optical system of the imaging unit 226.
  • the number of effective pixels of the image sensor used for the imaging unit 226 is 8 megapixels (for example, 3840 ⁇ 2160 pixels, so-called 4K resolution) or more, and preferably 32 megapixels (for example, 7680 ⁇ 4320 pixels, so-called 8K resolution). That's it.
  • a zoom function or a focus function may be provided in the optical system of the imaging unit 226.
  • the optical system of the imaging unit 226 may be omitted.
  • the A / D conversion unit 227 performs A / D conversion processing on the analog image signal input from the imaging unit 226 under the control of the first control unit 225a to generate digital image data,
  • the digital image data is output to the image signal transmission unit 228.
  • the image signal transmission unit 228 performs E / O conversion processing on the digital image data input from the A / D conversion unit 227 under the control of the first control unit 225a to convert the image data of the optical signal.
  • the image data of the optical signal is generated and output to the operation unit 26.
  • the first signal receiving unit 229 receives optical signal control data input from the operation unit 26, converts the received optical signal control data into electrical signal control data, and outputs the electrical signal control data to the first control unit 225a. To do.
  • the first signal receiving unit 229 is configured using an O / E conversion circuit.
  • the first signal receiving unit 229 is configured using a light receiving element (such as a photodiode or a phototransistor) that receives an optical signal that receives an optical signal.
  • the imaging drive unit 230 drives the imaging unit 226 under the control of the first control unit 225a.
  • the imaging drive unit 230 changes the imaging timing of the imaging unit 226, the zoom magnification of the optical zoom, the focus position, and the like under the control of the first control unit 225a.
  • the abnormality detection unit 231 detects an abnormality of the imaging unit 226 and outputs the detection result to the first control unit 225a. Specifically, the abnormality detection unit 231 determines whether the imaging unit 226 has a predetermined zoom magnification based on the zoom magnification included in the control data. If the imaging unit 226 does not have the predetermined zoom magnification, the imaging unit 226 An abnormality is detected, and the detection result is output to the first control unit 225a.
  • the abnormality detection unit 231 is configured using, for example, a photo interrupter that detects the position of the optical system included in the imaging unit 226.
  • the operation unit 26 includes a power transmission unit 54, a power control unit 55, a second signal reception unit 56a, a second input unit 57, a second recording unit 58, a second control unit 59a, and an image.
  • a signal reception / transmission unit 63 and a second signal transmission unit 64 are provided.
  • the second signal reception unit 56a receives the optical signal transmitted from the first signal transmission unit 224a, converts the received optical signal into an electrical signal, and outputs the electrical signal to the second control unit 59a.
  • the second signal receiving unit 56a is configured using an O / E conversion circuit.
  • the second signal receiving unit 56a is configured using a light receiving element (such as a photodiode or a phototransistor) that receives an optical signal.
  • the second control unit 59a comprehensively controls each unit of the endoscope 2a. Specifically, the second control unit 59 a outputs control data for controlling the fog prevention unit 211 and the imaging unit 226 to the first signal reception unit 229 via the second signal transmission unit 64. In addition, when the operation error signal is input from the second signal reception unit 56a, the second control unit 59a stops the power control unit 55 from supplying power to the power transmission unit 54.
  • the second control unit 59a is configured using a CPU or the like.
  • the image signal receiving / transmitting unit 63 receives the image signal of the optical signal transmitted from the image signal transmitting unit 228 of the distal end portion 21a, amplifies the image signal, for example, the image signal, and optically transmits the image signal to the control device 9a.
  • the image signal receiving / transmitting unit 63 is configured using a light receiving element (such as a photodiode or a phototransistor) that receives an optical signal, an infrared light emitting element, and an FPGA (Field Programmable Gate Array).
  • the second signal transmission unit 64 performs E / O conversion processing on the control data of the electrical signal input from the second control unit 59a under the control of the second control unit 59a, and performs the optical signal transmission.
  • the control data is transmitted to the first signal receiving unit 229.
  • the second signal transmission unit 64 is configured using an infrared light emitting element that optically transmits a signal (infrared rays), and transmits control data to the distal end portion 21a by non-contact optical data communication using IrDA.
  • the control device 9a includes an image processing unit 92, a third input unit 93, a third recording unit 94, a third control unit 95, and an image receiving unit 96.
  • the image receiving unit 96 performs O / E conversion processing on the image signal of the optical signal transmitted from the image signal receiving / transmitting unit 63 of the operation unit 26 and outputs the signal to the image processing unit 92.
  • the image receiving unit 96 is configured using a light receiving element (such as a photodiode or a phototransistor) that receives an optical signal.
  • FIG. 6 is a flowchart showing an outline of the processing executed by the distal end portion 21a.
  • the first control unit 225a Based on the control data received by the first signal receiving unit 229, the imaging unit 226 is driven via the imaging drive unit 230 (step S202).
  • the first control unit 225a is based on the control data received by the first signal reception unit 229, the temperature detected by the temperature detection unit 213, and the current value detected by the current detection unit 214. To turn on / off the fog prevention unit 211.
  • step S203 when the abnormality detection unit 231 detects an abnormality in the imaging unit 226 (step S203: Yes), the first control unit 225a has an abnormality in the imaging unit 226 in the first signal transmission unit 224a. Is transmitted to the second signal receiver 56a (step S204).
  • step S204 when the second control unit 59a receives an operation error signal from the distal end portion 21a via the second signal receiving unit 56a, the second control unit 59a supplies power by the power transmission unit 54 by controlling the power control unit 55. Stop. After step S204, the distal end portion 21a ends this process.
  • step S201 when the first signal receiving unit 229 has not received control data from the second signal transmitting unit 64 of the operation unit 26 (step S201: No), the distal end portion 21a proceeds to step S203.
  • step S203 when the abnormality detection unit 231 has not detected an abnormality in the imaging unit 226 (step S203: No), the distal end portion 21a proceeds to step S205.
  • step S205 when the power supply from the power transmission unit 54 is completed (step S205: Yes), the distal end portion 21a ends this process.
  • the first control unit 225a stops the driving of the driving unit 212, thereby stopping the fogging prevention unit 211 by turning off the power, and stopping the driving of the imaging driving unit 230. Accordingly, the imaging unit 226 is stopped by setting the power supply to the off state.
  • step S205 when the power supply from the power transmission unit 54 is not completed (step S205: No), the tip 21a returns to step S201 described above.
  • an operation error signal is reliably transmitted regardless of the communication state between the distal end portion 21a and the operation unit 26. be able to.
  • the image signal of the imaging unit 226 is transmitted to the control device 9a via the operation unit 26. Therefore, it is possible to continue operations necessary for subject observation and treatment control.
  • the image signal reception / transmission unit 63 and the second signal transmission unit 64 are provided in the operation unit 26.
  • the present invention is not limited thereto, and is provided in the connector unit 12, for example. May be.
  • the power control unit 55, the second signal receiving unit 56a, and the second control unit 59a may be provided in the connector unit 12.
  • the anti-fogging unit 211 and the imaging unit 226 are provided as the functional devices provided at the distal end portion 21a.
  • the present invention is not limited to this, and other functional devices may be used. Also good.
  • an LED (Light Emitting Diode) lamp illumination device an image device such as a CMOS or CCD, and the insertion unit 2 is recorded.
  • a memory an actuator of a treatment device for performing treatment, a power regulator for adjusting power to a predetermined voltage, a power storage device for storing power, and an optical system provided in the distal end portion 21a along the optical axis direction It may be an actuator to be moved.
  • an actuator for example, when an illumination device is arranged at the tip 21a, an acceleration sensor and a gyro sensor that detect the attitude of the tip 21a are arranged at the tip 21a instead of the temperature detector 213, and each of the acceleration sensor and the gyro sensor Based on the detection result, the first control unit 225a may control the driving of the lighting device.
  • the first control unit 225a determines that the angle formed by a predetermined axis (for example, the optical axis) of the tip 21a and the direction of gravity is equal to or greater than a predetermined value (for example, If it is horizontal or higher), irradiation with the lighting device may be stopped.
  • a predetermined axis for example, the optical axis
  • a predetermined value for example, If it is horizontal or higher
  • inventions can be formed by appropriately combining a plurality of components disclosed in the first and second embodiments of the present invention. For example, some components may be deleted from all the components described in the first and second embodiments of the present invention. Furthermore, you may combine suitably the component demonstrated in Embodiment 1, 2 of this invention mentioned above.
  • control device and the light source device are separate, but may be integrally formed.
  • the “unit” described above can be read as “means” or “circuit”.
  • the control unit can be read as control means or a control circuit.
  • the signal is transmitted from the endoscope camera head to the control device via the transmission cable.
  • the signal need not be wired, for example, and may be wireless.
  • an image signal or the like may be transmitted from the endoscope camera head to the control device in accordance with a predetermined wireless communication standard (for example, Wi-Fi (registered trademark) or Bluetooth (registered trademark)).
  • a predetermined wireless communication standard for example, Wi-Fi (registered trademark) or Bluetooth (registered trademark)
  • wireless communication may be performed according to other wireless communication standards.
  • an endoscope system is used.
  • a capsule endoscope, a video microscope for imaging a subject, a mobile phone having an imaging function, and a tablet type having an imaging function Even a terminal can be applied.

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Abstract

L'invention concerne un dispositif d'endoscope capable de transmettre un signal d'erreur de manière fiable indépendamment de l'état de communication même quand il est alimenté en mode sans fil, sans contact. Le dispositif d'endoscope selon l'invention comprend : une unité de réception d'énergie 221 qui se trouve à l'intérieur d'une partie insertion 21, reçoit l'énergie en mode sans contact fournie de l'extérieur par un procédé d'induction électromagnétique ou un procédé de résonance magnétique, et délivre l'énergie à une unité antibuée 211 ; une première unité de commande 225 qui se trouve à l'intérieur de la partie insertion 22, commande l'entraînement de l'unité antibuée 211 et, quand une unité de détection de température 213 détecte une anomalie dans l'unité antibuée 211, génère un signal d'erreur de fonctionnement à une unité de transmission de signal 224 ; et une unité de transmission de signal 224 qui convertit le signal d'erreur de fonctionnement en un signal optique et transmet le signal optique à l'extérieur.
PCT/JP2018/010754 2017-06-12 2018-03-19 Dispositif d'endoscope WO2018230068A1 (fr)

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Cited By (1)

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JP2020162221A (ja) * 2019-03-25 2020-10-01 ソニー・オリンパスメディカルソリューションズ株式会社 充電装置

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WO2012039398A1 (fr) * 2010-09-22 2012-03-29 オリンパスメディカルシステムズ株式会社 Dispositif de commande thermique pour endoscope
JP2013027418A (ja) * 2011-07-26 2013-02-07 Fujifilm Corp 電子内視鏡装置及び電子内視鏡システム
WO2017022358A1 (fr) * 2015-08-06 2017-02-09 ソニー・オリンパスメディカルソリューションズ株式会社 Dispositif de traitement de signaux médicaux, dispositif d'affichage médical, et système d'observation médicale

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JP2015160098A (ja) * 2014-02-28 2015-09-07 富士フイルム株式会社 内視鏡システム
JP6122802B2 (ja) * 2014-03-19 2017-04-26 富士フイルム株式会社 内視鏡システム及び内視鏡

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Publication number Priority date Publication date Assignee Title
JP2012055697A (ja) * 2010-09-10 2012-03-22 Karl Storz Imaging Inc 回転可能結合を備えた無線カメラ接続
WO2012039398A1 (fr) * 2010-09-22 2012-03-29 オリンパスメディカルシステムズ株式会社 Dispositif de commande thermique pour endoscope
JP2013027418A (ja) * 2011-07-26 2013-02-07 Fujifilm Corp 電子内視鏡装置及び電子内視鏡システム
WO2017022358A1 (fr) * 2015-08-06 2017-02-09 ソニー・オリンパスメディカルソリューションズ株式会社 Dispositif de traitement de signaux médicaux, dispositif d'affichage médical, et système d'observation médicale

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Publication number Priority date Publication date Assignee Title
JP2020162221A (ja) * 2019-03-25 2020-10-01 ソニー・オリンパスメディカルソリューションズ株式会社 充電装置
JP7248471B2 (ja) 2019-03-25 2023-03-29 ソニー・オリンパスメディカルソリューションズ株式会社 充電装置および内視鏡システム
US11633085B2 (en) 2019-03-25 2023-04-25 Sony Olympus Medical Solutions Inc. Charging device

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