WO2017217231A1 - Medical imaging system and control device - Google Patents

Medical imaging system and control device Download PDF

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Publication number
WO2017217231A1
WO2017217231A1 PCT/JP2017/020285 JP2017020285W WO2017217231A1 WO 2017217231 A1 WO2017217231 A1 WO 2017217231A1 JP 2017020285 W JP2017020285 W JP 2017020285W WO 2017217231 A1 WO2017217231 A1 WO 2017217231A1
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Prior art keywords
unit
endoscope
clock signal
control device
frequency
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PCT/JP2017/020285
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French (fr)
Japanese (ja)
Inventor
智樹 岩崎
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オリンパス株式会社
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Priority to JP2017557014A priority Critical patent/JPWO2017217231A1/en
Publication of WO2017217231A1 publication Critical patent/WO2017217231A1/en

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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
    • 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
    • A61B1/04—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 combined with photographic or television appliances
    • A61B1/045—Control thereof
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

Definitions

  • the present invention relates to a medical imaging system and a control device that perform signal transmission between electrically insulated circuits.
  • a patient circuit that is a circuit that contacts a subject and a circuit that transmits and receives a clock signal between the patient circuit and is grounded to ensure the safety of the operator.
  • an endoscope system that includes a secondary circuit that is an isolated circuit, the patient circuit and the secondary circuit are electrically insulated in order to ensure safety.
  • a pulse transformer is provided between the patient circuit and the secondary circuit, and a transmission path between the patient circuit and the secondary circuit is formed via this pulse transformer.
  • the technique to do is known (refer patent document 1).
  • the present invention has been made in view of the above, and an object thereof is to provide a medical imaging system and a control device that can prevent the influence of jitter components included in a clock signal.
  • a medical imaging system includes an endoscope that is inserted into a subject and generates image data in the subject, and the endoscope includes A medical imaging system comprising: a control device to be connected; a generator that generates a clock signal for driving the endoscope; and a type of the endoscope connected to the control device
  • the changing unit for changing the frequency of the clock signal generated by the generating unit to a frequency according to the identification result identified by the identifying unit, and the changing unit changing the frequency.
  • An insulating transmission unit that transmits the clock signal after being insulated from the generation unit, a removal unit that removes a jitter component included in the clock signal transmitted from the insulation transmission unit, and the removal unit Removed
  • the serial clock signal characterized by comprising a transmission section that transmits to the endoscope.
  • the changing unit is a multi-clock generator.
  • the insulating transmission unit includes a pulse transformer.
  • the insulating transmission unit includes a photocoupler.
  • the control device includes first and second substrates that are electrically insulated, and the first substrate includes the generation unit and the identification. And the changing unit, the second substrate is provided with the removing unit and the transmitting unit, and the insulating transmission unit includes the first substrate, the second substrate, and the second substrate.
  • the clock signal having the frequency changed by the changing unit is transmitted to the removing unit.
  • the endoscope in the medical imaging system according to the present invention, includes a connector portion that can be detachably connected to the control device, and the removal portion is provided in the connector portion. It is characterized by.
  • the control device is a control device to which an endoscope that is inserted into a subject and generates image data in the subject is connected, and a clock for driving the endoscope
  • a generation unit that generates a signal, an identification unit that identifies a type of the endoscope connected to the control device, and a frequency of the clock signal that is generated by the generation unit in the identification result that the identification unit has identified
  • a change unit that changes the frequency to a corresponding frequency and outputs the output signal, an insulation transmission unit that insulates and transmits the clock signal whose frequency has been changed by the change unit, and is transmitted from the generation transmission unit.
  • a removing unit that removes a jitter component included in the clock signal, and a transmitting unit that transmits the clock signal from which the removing unit has removed the jitter component to the endoscope.
  • FIG. 1 is a diagram showing a schematic configuration of an endoscope system according to an embodiment of the present invention.
  • FIG. 2 is a block diagram showing functions of main parts of the endoscope system according to the embodiment of the present invention.
  • FIG. 1 is a diagram showing a schematic configuration of an endoscope system according to an embodiment of the present invention.
  • An endoscope system 1 shown in FIG. 1 includes an endoscope 2 (endoscope scope) that images the inside of a subject by inserting a tip portion into the subject, and illumination that is emitted from the tip of the endoscope 2.
  • the light source device 3 that generates light
  • the display device 4 that displays an image
  • the endoscope 2 performs predetermined image processing on image data generated by imaging the inside of the subject, and the entire endoscope system 1
  • a control device 5 that comprehensively controls the operation.
  • the endoscope 2 includes an insertion portion 21 having an elongated shape having flexibility, an operation portion 22 that is connected to a proximal end side of the insertion portion 21 and receives input of various operation signals, and an insertion portion from the operation portion 22. And a universal cord 23 that extends in a direction different from the direction in which 21 extends and incorporates each main cable connected to the light source device 3 and the control device 5.
  • the insertion portion 21 is connected to a distal end portion 24 incorporating an imaging device (imaging portion) to be described later, a bendable bending portion 25 constituted by a plurality of bending pieces, and a proximal end side of the bending portion 25, and is flexible. And a long flexible diseased part 26 having the property.
  • the operation unit 22 includes a bending knob 221 that bends the bending unit 25 in the vertical direction and the left-right direction, a treatment instrument insertion unit 222 that inserts a treatment instrument such as a biological forceps, a laser knife, and an inspection probe into the body cavity, the light source device 3,
  • a treatment instrument such as a biological forceps, a laser knife, and an inspection probe into the body cavity
  • the light source device 3 In addition to the control device 5, it has a plurality of switches 223 that are operation input units for inputting operation instruction signals of peripheral devices such as air supply means, water supply means, and gas supply means.
  • the treatment instrument inserted from the treatment instrument insertion portion 222 is exposed from an opening (not shown) via the distal end portion 24.
  • the universal cord 23 incorporates at least a light guide and an assembly cable.
  • the universal cord 23 has a connector portion 27 (see FIG. 1) that can be attached to and detached from the light source device 3.
  • the connector portion 27 has a coiled coil cable 27a extending, and has an electrical connector portion 28 that is detachable from the control device 5 at the extending end of the coil cable 27a.
  • the electrical connector section 28 is configured using an FPGA (Field Programmable Gate Array) inside.
  • the light source device 3 is configured using, for example, a halogen lamp or a white LED (Light Emitting Diode). Under the control of the control device 5, the light source device 3 sequentially emits light (red, green, and blue) in a predetermined wavelength band from the distal end side of the insertion portion 21 of the endoscope 2 toward the subject (surface sequential). formula).
  • the display device 4 displays various images related to the image and the endoscope system 1 corresponding to the image data subjected to image processing by the control device 5 under the control of the control device 5.
  • the display device 4 is configured using a display panel such as liquid crystal or organic EL (Electro Luminescence).
  • the control device 5 performs predetermined image processing on the image data input from the endoscope 2 and outputs the image data to the display device 4, and also includes a clock signal for driving the imaging unit to the endoscope 2. Output a signal.
  • the control device 5 is configured using a CPU (Central Processing Unit) or the like.
  • FIG. 2 is a block diagram illustrating functions of a main part of the endoscope system 1. Details of each part of the endoscope system 1 and a path of an electric signal in the endoscope system 1 will be described with reference to FIG.
  • the endoscope 2 includes an optical system 201, an imaging unit 202, an identification information recording unit 203, and a first transmission / reception unit 204.
  • the optical system 201 forms a subject image on the light receiving surface of the imaging unit 202.
  • the optical system 201 is configured using one or a plurality of lenses and a prism.
  • the imaging unit 202 Under the control of the control device 5, the imaging unit 202 receives the subject image formed on the light receiving surface by the optical system 201 and performs photoelectric conversion, thereby generating subject image data. 1 output to the transmission / reception unit 204. Specifically, the imaging unit 202 generates subject image data based on a clock signal input from the control device 5 via the first transmission / reception unit 204, and outputs the image data to the first transmission / reception unit 204. To do.
  • the imaging unit 202 is configured using an imaging sensor such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor).
  • the identification information recording unit 203 records identification information for identifying the endoscope 2.
  • the identification information includes an endoscope ID for identifying the endoscope 2, angle-of-view information of the endoscope 2, year information of the endoscope 2, and type information indicating the type of the endoscope 2.
  • the specification information of the endoscope 2, the transmission method of the image data of the endoscope 2, the transmission rate of the image data of the endoscope 2, and the clock information regarding the frequency of the clock signal for driving the imaging unit 202 are included.
  • the identification information recording unit 203 is configured using, for example, a ROM (Reed Only Memory), a flash memory, or the like.
  • the first transmission / reception unit 204 outputs the image data input from the imaging unit 202 and the identification information recorded by the identification information recording unit 203 to the control device 5, and the clock signal input from the control device 5 to the imaging unit 202. Output.
  • the first transmission / reception unit 204 is configured using, for example, an FPGA (Field Programmable Gate Array). Moreover, the 1st transmission / reception part 204 is arrange
  • the control device 5 generates a clock signal for driving the endoscope 2 and performs image processing such as A / D conversion on image data, and a digital circuit board 51 (secondary circuit board).
  • the analog board 52 patient circuit board
  • the analog board 52 that receives input image data and performs predetermined signal processing is electrically insulated from the digital board 51 and the analog board 52, and the digital board 51 and the analog board 52 And an insulating transmission unit 53 that performs signal transmission between them.
  • the digital board 51 and the analog board 52 are grounded at different reference potentials.
  • the digital board 51 is a circuit board on which grounding for stably operating the circuit and grounding for ensuring the safety of the operator of the endoscope system 1 are performed.
  • the digital board 51 includes an identification unit 511, a generation unit 512, a change unit 513, an image processing unit 514, a recording unit 515, and a control unit 516.
  • the identification unit 511 identifies the type of the endoscope 2 connected to the control device 5. Specifically, the identification unit 511 identifies the type of the endoscope 2 connected to the control device 5 based on the identification information input via the analog board 52 and the insulating transmission unit 53, and the identification result Is output to the changing unit 513.
  • the generating unit 512 generates a clock signal for driving the imaging unit 202 provided in the endoscope 2 connected to the control device 5 and outputs the clock signal to the changing unit 513.
  • the generation unit 512 is configured using a master clock generator.
  • the changing unit 513 Based on the identification result input from the identification unit 511, the changing unit 513 changes the frequency of the clock signal input from the generation unit 512 to a frequency corresponding to the identification result of the identification unit 511, and changes the frequency of the clock.
  • the signal is output to the insulating transmission unit 53.
  • the changing unit 513 is configured using a multi-clock generator.
  • the image processing unit 514 performs predetermined image processing on the image data input via the insulated transmission unit 53 and outputs the image data to the display device 4 under the control of the control unit 516.
  • the predetermined image processing is, for example, digital image processing such as optical black subtraction processing, white balance adjustment processing, color matrix calculation processing, gamma correction processing, color reproduction processing, edge enhancement processing, and format conversion processing.
  • the image processing unit 514 is configured using an FPGA or the like.
  • the recording unit 515 is configured using a ROM (Read Only Memory) or a RAM (Random Access Memory), and records image data and various types of information related to the endoscope system 1. Further, the recording unit 515 includes a program recording unit 515a that records a program executed by the endoscope system 1.
  • ROM Read Only Memory
  • RAM Random Access Memory
  • the control unit 516 is configured using a CPU (Central Processing Unit) or the like, and comprehensively controls each unit configuring the endoscope system 1.
  • CPU Central Processing Unit
  • the analog substrate 52 is a circuit substrate that is insulated from the digital substrate 51 and grounded at a reference potential different from the reference potential of the digital substrate 51.
  • the analog substrate 52 includes a second transmission / reception unit 521 and a removal unit 522.
  • the second transmission / reception unit 521 receives the clock signal input via the insulating transmission unit 53 and outputs the received clock signal to the removal unit 522. Also, the second transmission / reception unit 521 receives the clock signal from which the jitter component has been removed by the removal unit 522 described later, and receives the clock signal from which the jitter component has been removed via the second transmission / reception unit 521 in the endoscope 2. To the first transmission / reception unit 204. Further, the second transmission / reception unit 521 performs noise removal processing and gain adjustment processing on the image data input from the first transmission / reception unit 204 of the endoscope 2 and then performs A / D conversion to perform digital processing.
  • Image data is generated, and the digital image data is output to the image processing unit 514 via the insulating transmission unit 53.
  • the second transmission / reception unit 521 is configured using an FPGA or the like. In the present embodiment, the second transmission / reception unit 521 functions as a transmission unit.
  • the removal unit 522 is provided on the rear side of the insulating transmission unit 53 when viewed from the generation unit 512.
  • the removal unit 522 removes a jitter component included in the clock signal input from the second transmission / reception unit 521 and outputs the jitter component to the second transmission / reception unit 521.
  • the removing unit 522 is configured using a clock cleaner or the like.
  • the insulating transmission unit 53 insulates the clock signal whose frequency has been changed by the changing unit 513 from the generating unit 512 and transmits the clock signal to the second transmitting / receiving unit 521.
  • the insulating transmission unit 53 is configured using an isolation amplifier or the like. Specifically, the insulating transmission unit 53 includes a first pulse transformer 531 and a second pulse transformer 532.
  • the first pulse transformer 531 is provided between the digital board 51 and the analog board 52 and transmits the clock signal input from the changing unit 513 to the second transmitting / receiving unit 521.
  • the first pulse transformer 531 has a magnetic core provided with a primary winding and a secondary winding, and the digital substrate 51 and the analog substrate 52 are insulated from each other by the primary winding and the secondary winding.
  • the second pulse transformer 532 is provided between the digital board 51 and the analog board 52 and transmits digital image data input from the second transmitting / receiving unit 521 to the image processing unit 514.
  • the second pulse transformer 532 has a magnetic core provided with a primary winding and a secondary winding, and the digital substrate 51 and the analog substrate 52 are insulated from each other by the primary winding and the secondary winding.
  • the removal unit 522 removes the jitter component included in the clock signal transmitted from the isolated transmission unit 53, and the second transmission / reception unit 521 removes the jitter component by the removal unit 522. Since the removed clock signal is transmitted to the endoscope 2, the influence of the jitter component included in the clock signal can be prevented.
  • the changing unit 513 is configured by a multi-clock generator, and the changing unit 513 is based on the identification information obtained by the identifying unit 511 on the frequency of the clock signal generated by the generating unit 512. Since the frequency is changed according to the identification result and output, the number of transmitters that transmit a clock signal for each type of endoscope 2 connected to the control device 5 can be omitted. Can be achieved.
  • the removing unit 522 is included in the clock signal transmitted from the insulated transmission unit 53. Since the jitter component is removed, the influence of the jitter component included in the clock signal can be prevented.
  • the insulating transmission unit 53 is configured by the first pulse transformer 531 and the second pulse transformer 532, but may be configured by using another isolation amplifier.
  • image data or a clock signal may be converted into an optical signal and output, and a photocoupler that receives the optical signal and converts it into an electrical signal may be used.
  • the removal unit 522 is provided on the analog substrate 52.
  • the removal unit 522 is provided in the electrical connector unit 28 of the endoscope 2 and the clock signal received by the first transmission / reception unit 204 is used.
  • the jitter component may be removed.
  • the changing unit 513 is configured by a multi-clock generator.
  • the changing unit 513 may be configured by using a plurality of clock generators so that clock signals having different frequencies can be selected. .
  • the image data is transmitted to the control device 5 via the transmission cable.
  • the image data does not need to be wired and may be wireless.
  • image data or the like may be transmitted to the control device in accordance with a predetermined wireless communication standard (for example, Wi-Fi (registered trademark) or Bluetooth (registered trademark)).
  • Wi-Fi registered trademark
  • Bluetooth registered trademark
  • wireless communication may be performed according to other wireless communication standards.
  • control device 5 and the light source device 3 are separate bodies.
  • present invention is not limited to this.
  • control device and the light source device may be integrally formed. Good.
  • the simultaneous endoscope has been described as an example, but the present invention can also be applied to a frame sequential endoscope.
  • the endoscope is inserted into the subject.
  • a capsule endoscope or an imaging device that images the subject can also be applied.
  • the electromagnetic compatibility (Electro Magnetic) of a rigid endoscope, a sinus endoscope, an electric knife, a test probe, and the like.
  • Compatibility EMC

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Abstract

The present invention provides a medical imaging system and a control device that are able to prevent the effects of a jitter component within a clock signal. A control device 5 is provided with: an alteration unit 513 that sets the frequency of a clock signal generated by a generation unit 512 to a frequency according to an identification result provided by an identification unit 511, and outputs the set frequency; an insulation transmission unit 53 that insulates, from the generation unit 512, the clock signal of the frequency which has been set by the alteration unit 513, and transmits said clock signal; and an elimination unit 522 that is disposed after the insulation transmission unit 53 as viewed from the generation unit 512, and eliminates the jitter component within the clock signal that has been transmitted from the insulation transmission unit 53.

Description

医療撮像システムおよび制御装置Medical imaging system and control device
　本発明は、電気的に絶縁されている回路間の信号伝送を行う医療撮像システムおよび制御装置に関する。 The present invention relates to a medical imaging system and a control device that perform signal transmission between electrically insulated circuits.
　従来、被検体に接触する側の回路である患者回路と、患者回路との間でクロック信号の送受信等を行う側の回路であって、操作者の安全性を確保するためにグランドに接地された回路である二次回路と、を備える内視鏡システムでは、安全性を確保するため、患者回路と二次回路とを電気的に絶縁している。 Conventionally, a patient circuit that is a circuit that contacts a subject and a circuit that transmits and receives a clock signal between the patient circuit and is grounded to ensure the safety of the operator. In an endoscope system that includes a secondary circuit that is an isolated circuit, the patient circuit and the secondary circuit are electrically insulated in order to ensure safety.
　患者回路と二次回路との間の信号伝送を行う技術として、患者回路と二次回路との間にパルストランスを設け、このパルストランスを介して患者回路と二次回路との伝送経路を形成する技術が知られている（特許文献１参照）。 As a technology for signal transmission between the patient circuit and the secondary circuit, a pulse transformer is provided between the patient circuit and the secondary circuit, and a transmission path between the patient circuit and the secondary circuit is formed via this pulse transformer. The technique to do is known (refer patent document 1).
特開２００４－２３００６１号公報JP 2004-230061 A
　しかしながら、上述した特許文献１では、パルストランスを介して二次回路から患者回路へクロック信号を伝送しているため、パルストランスによってクロック信号に含まれるジッタ成分が増長されることにより、ジッタ成分の影響が顕著に表れることがあった。このため、ジッタ成分に対する対策が求められていた。 However, in Patent Document 1 described above, since the clock signal is transmitted from the secondary circuit to the patient circuit via the pulse transformer, the jitter component included in the clock signal is increased by the pulse transformer, so that the jitter component is increased. The effect may be noticeable. For this reason, measures against jitter components have been demanded.
　本発明は、上記に鑑みてなされたものであって、クロック信号に含まれるジッタ成分の影響を防止することができる医療撮像システムおよび制御装置を提供することを目的とする。 The present invention has been made in view of the above, and an object thereof is to provide a medical imaging system and a control device that can prevent the influence of jitter components included in a clock signal.
　上述した課題を解決し、目的を達成するために、本発明に係る医療撮像システムは、被検体内に挿入され、該被検体内の画像データを生成する内視鏡と、該内視鏡が接続される制御装置と、を備えた医療撮像システムであって、前記内視鏡を駆動するためのクロック信号を生成する生成部と、前記制御装置に接続された前記内視鏡の種別を識別する識別部と、前記生成部が生成した前記クロック信号の周波数を、前記識別部が識別した識別結果に応じた周波数に変更して出力する変更部と、前記変更部によって前記周波数が変更された前記クロック信号を、前記生成部から絶縁して伝送する絶縁伝送部と、前記絶縁伝送部から伝送された前記クロック信号に含まれるジッタ成分を除去する除去部と、前記除去部が前記ジッタ成分を除去した前記クロック信号を前記内視鏡へ送信する送信部と、を備えたことを特徴とする。 In order to solve the above-described problems and achieve the object, a medical imaging system according to the present invention includes an endoscope that is inserted into a subject and generates image data in the subject, and the endoscope includes A medical imaging system comprising: a control device to be connected; a generator that generates a clock signal for driving the endoscope; and a type of the endoscope connected to the control device The changing unit for changing the frequency of the clock signal generated by the generating unit to a frequency according to the identification result identified by the identifying unit, and the changing unit changing the frequency. An insulating transmission unit that transmits the clock signal after being insulated from the generation unit, a removal unit that removes a jitter component included in the clock signal transmitted from the insulation transmission unit, and the removal unit Removed The serial clock signal characterized by comprising a transmission section that transmits to the endoscope.
　また、本発明に係る医療撮像システムは、上記発明において、前記変更部は、マルチクロックジェネレータであることを特徴とする。 In the medical imaging system according to the present invention as set forth in the invention described above, the changing unit is a multi-clock generator.
　また、本発明に係る医療撮像システムは、上記発明において、前記絶縁伝送部は、パルストランスを有することを特徴とする。 In the medical imaging system according to the present invention as set forth in the invention described above, the insulating transmission unit includes a pulse transformer.
　また、本発明に係る医療撮像システムは、上記発明において、前記絶縁伝送部は、フォトカプラを有することを特徴とする。 In the medical imaging system according to the present invention as set forth in the invention described above, the insulating transmission unit includes a photocoupler.
　また、本発明に係る医療撮像システムは、上記発明において、前記制御装置は、電気的に絶縁される第１および第２の基板を備え、前記第１の基板には、前記生成部、前記識別部および前記変更部が設けられてなり、前記第２の基板には、前記除去部および前記送信部が設けられてなり、前記絶縁伝送部は、前記第１の基板と前記第２の基板との間を絶縁し、かつ、前記変更部によって前記周波数が変更された前記クロック信号を前記除去部へ伝送することを特徴とする。 In the medical imaging system according to the present invention as set forth in the invention described above, the control device includes first and second substrates that are electrically insulated, and the first substrate includes the generation unit and the identification. And the changing unit, the second substrate is provided with the removing unit and the transmitting unit, and the insulating transmission unit includes the first substrate, the second substrate, and the second substrate. The clock signal having the frequency changed by the changing unit is transmitted to the removing unit.
　また、本発明に係る医療撮像システムは、上記発明において、前記内視鏡は、前記制御装置に着脱自在に接続可能なコネクタ部を備え、前記除去部は、前記コネクタ部に設けられていることを特徴とする。 In the medical imaging system according to the present invention, in the above invention, the endoscope includes a connector portion that can be detachably connected to the control device, and the removal portion is provided in the connector portion. It is characterized by.
　また、本発明に係る制御装置は、被検体内に挿入され、該被検体内の画像データを生成する内視鏡が接続される制御装置であって、前記内視鏡を駆動するためのクロック信号を生成する生成部と、前記制御装置に接続された前記内視鏡の種別を識別する識別部と、前記生成部が生成した前記クロック信号の周波数を、前記識別部が識別した識別結果に応じた周波数に変更して出力する変更部と、前記変更部によって前記周波数が変更された前記クロック信号を、前記生成部から絶縁して伝送する絶縁伝送部と、前記絶縁伝送部から伝送された前記クロック信号に含まれるジッタ成分を除去する除去部と、前記除去部が前記ジッタ成分を除去した前記クロック信号を前記内視鏡へ送信する送信部と、を備えたことを特徴とする。 The control device according to the present invention is a control device to which an endoscope that is inserted into a subject and generates image data in the subject is connected, and a clock for driving the endoscope A generation unit that generates a signal, an identification unit that identifies a type of the endoscope connected to the control device, and a frequency of the clock signal that is generated by the generation unit in the identification result that the identification unit has identified A change unit that changes the frequency to a corresponding frequency and outputs the output signal, an insulation transmission unit that insulates and transmits the clock signal whose frequency has been changed by the change unit, and is transmitted from the generation transmission unit. A removing unit that removes a jitter component included in the clock signal, and a transmitting unit that transmits the clock signal from which the removing unit has removed the jitter component to the endoscope.
　本発明によれば、クロック信号に含まれるジッタ成分の影響を防止することができるという効果を奏する。 According to the present invention, it is possible to prevent the influence of jitter components included in the clock signal.
図１は、本発明の一実施の形態に係る内視鏡システムの概略構成を示す図である。FIG. 1 is a diagram showing a schematic configuration of an endoscope system according to an embodiment of the present invention. 図２は、本発明の一実施の形態に係る内視鏡システムの要部の機能を示すブロック図である。FIG. 2 is a block diagram showing functions of main parts of the endoscope system according to the embodiment of the present invention.
　以下、本発明を実施するための形態（以下、「実施の形態」という）を説明する。以下、本発明を実施するための形態を図面とともに詳細に説明する。なお、以下の実施の形態により本発明が限定されるものではない。また、本発明に係る医療撮像システムの一例として、患者等の被検体内の体内を撮像して表示する医療用の内視鏡システムについて説明する。さらに、図面の記載において、同一部分には同一の符号を付して説明する。 Hereinafter, modes for carrying out the present invention (hereinafter referred to as “embodiments”) will be described. DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by the following embodiment. Further, as an example of a medical imaging system according to the present invention, a medical endoscope system that images and displays the inside of a subject such as a patient will be described. Furthermore, in the description of the drawings, the same portions will be described with the same reference numerals.
　〔内視鏡システムの構成〕
　図１は、本発明の一実施の形態に係る内視鏡システムの概略構成を示す図である。図１に示す内視鏡システム１は、被検体内に先端部を挿入することによって被検体内を撮像する内視鏡２（内視鏡スコープ）と、内視鏡２の先端から出射する照明光を発生する光源装置３と、画像を表示する表示装置４と、内視鏡２が被検体内を撮像して生成した画像データに所定の画像処理を施すとともに、内視鏡システム１全体の動作を統括的に制御する制御装置５（プロセッサ）と、を備える。 [Configuration of endoscope system]
FIG. 1 is a diagram showing a schematic configuration of an endoscope system according to an embodiment of the present invention. An endoscope system 1 shown in FIG. 1 includes an endoscope 2 (endoscope scope) that images the inside of a subject by inserting a tip portion into the subject, and illumination that is emitted from the tip of the endoscope 2. The light source device 3 that generates light, the display device 4 that displays an image, and the endoscope 2 performs predetermined image processing on image data generated by imaging the inside of the subject, and the entire endoscope system 1 And a control device 5 (processor) that comprehensively controls the operation.
　内視鏡２は、可撓性を有する細長形状をなす挿入部２１と、挿入部２１の基端側に接続され、各種の操作信号の入力を受け付ける操作部２２と、操作部２２から挿入部２１が延びる方向と異なる方向に延び、光源装置３および制御装置５と接続する各主ケーブルを内蔵するユニバーサルコード２３と、を備える。 The endoscope 2 includes an insertion portion 21 having an elongated shape having flexibility, an operation portion 22 that is connected to a proximal end side of the insertion portion 21 and receives input of various operation signals, and an insertion portion from the operation portion 22. And a universal cord 23 that extends in a direction different from the direction in which 21 extends and incorporates each main cable connected to the light source device 3 and the control device 5.
　挿入部２１は、後述する撮像装置（撮像部）を内蔵した先端部２４と、複数の湾曲駒によって構成された湾曲自在な湾曲部２５と、湾曲部２５の基端側に接続され、可撓性を有する長尺状の可撓患部２６と、を有する。 The insertion portion 21 is connected to a distal end portion 24 incorporating an imaging device (imaging portion) to be described later, a bendable bending portion 25 constituted by a plurality of bending pieces, and a proximal end side of the bending portion 25, and is flexible. And a long flexible diseased part 26 having the property.
　操作部２２は、湾曲部２５を上下方向および左右方向に湾曲させる湾曲ノブ２２１と、体腔内に生体鉗子、レーザメスおよび検査プローブ等の処置具を挿入する処置具挿入部２２２と、光源装置３および制御装置５に加えて、送気手段、送水手段、送ガス手段等の周辺機器の操作指示信号を入力する操作入力部である複数のスイッチ２２３と、を有する。処置具挿入部２２２から挿入される処置具は、先端部２４を経由して開口部（図示せず）から表出する。 The operation unit 22 includes a bending knob 221 that bends the bending unit 25 in the vertical direction and the left-right direction, a treatment instrument insertion unit 222 that inserts a treatment instrument such as a biological forceps, a laser knife, and an inspection probe into the body cavity, the light source device 3, In addition to the control device 5, it has a plurality of switches 223 that are operation input units for inputting operation instruction signals of peripheral devices such as air supply means, water supply means, and gas supply means. The treatment instrument inserted from the treatment instrument insertion portion 222 is exposed from an opening (not shown) via the distal end portion 24.
　ユニバーサルコード２３は、ライトガイドと、集合ケーブルと、を少なくとも内蔵している。ユニバーサルコード２３は、光源装置３に着脱自在なコネクタ部２７（図１を参照）を有する。コネクタ部２７は、コイル状のコイルケーブル２７ａが延設し、コイルケーブル２７ａの延出端に制御装置５と着脱自在な電気コネクタ部２８を有する。電気コネクタ部２８は、内部にＦＰＧＡ（Field　Programmable　Gate　Array）を用いて構成される。 The universal cord 23 incorporates at least a light guide and an assembly cable. The universal cord 23 has a connector portion 27 (see FIG. 1) that can be attached to and detached from the light source device 3. The connector portion 27 has a coiled coil cable 27a extending, and has an electrical connector portion 28 that is detachable from the control device 5 at the extending end of the coil cable 27a. The electrical connector section 28 is configured using an FPGA (Field Programmable Gate Array) inside.
　光源装置３は、例えばハロゲンランプや白色ＬＥＤ（Light　Emitting　Diode）等を用いて構成される。光源装置３は、制御装置５の制御のもと、内視鏡２の挿入部２１の先端側から被写体に向けて所定の波長帯域の光（赤、緑および青）を順次照射する（面順次式）。 The light source device 3 is configured using, for example, a halogen lamp or a white LED (Light Emitting Diode). Under the control of the control device 5, the light source device 3 sequentially emits light (red, green, and blue) in a predetermined wavelength band from the distal end side of the insertion portion 21 of the endoscope 2 toward the subject (surface sequential). formula).
　表示装置４は、制御装置５の制御のもと、制御装置５が画像処理を施した画像データに対応する画像および内視鏡システム１に関する各種情報を表示する。表示装置４は、液晶や有機ＥＬ（Electro　Luminescence）等の表示パネル等を用いて構成される。 The display device 4 displays various images related to the image and the endoscope system 1 corresponding to the image data subjected to image processing by the control device 5 under the control of the control device 5. The display device 4 is configured using a display panel such as liquid crystal or organic EL (Electro Luminescence).
　制御装置５は、内視鏡２から入力された画像データに対して所定の画像処理を施して表示装置４へ出力するとともに、内視鏡２に撮像部を駆動するためのクロック信号を含む制御信号を出力する。制御装置５は、ＣＰＵ（Central　Processing　Unit）等を用いて構成される。 The control device 5 performs predetermined image processing on the image data input from the endoscope 2 and outputs the image data to the display device 4, and also includes a clock signal for driving the imaging unit to the endoscope 2. Output a signal. The control device 5 is configured using a CPU (Central Processing Unit) or the like.
　次に、内視鏡システム１の要部の機能について説明する。図２は、内視鏡システム１の要部の機能を示すブロック図である。図２を参照して内視鏡システム１の各部の詳細および内視鏡システム１内の電気信号の経路について説明する。 Next, functions of main parts of the endoscope system 1 will be described. FIG. 2 is a block diagram illustrating functions of a main part of the endoscope system 1. Details of each part of the endoscope system 1 and a path of an electric signal in the endoscope system 1 will be described with reference to FIG.
　〔内視鏡の構成〕
　まず、内視鏡２の構成について説明する。
　図２に示すように、内視鏡２は、光学系２０１と、撮像部２０２と、識別情報記録部２０３と、第１送受信部２０４と、を備える。 [Configuration of endoscope]
First, the configuration of the endoscope 2 will be described.
As shown in FIG. 2, the endoscope 2 includes an optical system 201, an imaging unit 202, an identification information recording unit 203, and a first transmission / reception unit 204.
　光学系２０１は、被写体像を撮像部２０２の受光面に結像する。光学系２０１は、１または複数のレンズおよびプリズム等を用いて構成される。 The optical system 201 forms a subject image on the light receiving surface of the imaging unit 202. The optical system 201 is configured using one or a plurality of lenses and a prism.
　撮像部２０２は、制御装置５の制御のもと、光学系２０１が受光面に結像した被写体像を受光して光電変換を行うことによって、被写体の画像データを生成し、この画像データを第１送受信部２０４へ出力する。具体的には、撮像部２０２は、第１送受信部２０４を介して制御装置５から入力されるクロック信号に基づいて、被写体の画像データを生成し、この画像データを第１送受信部２０４へ出力する。撮像部２０２は、ＣＣＤ（Charge　Coupled　Device）やＣＭＯＳ（Complementary　Metal　Oxide　Semiconductor）等の撮像センサを用いて構成される。 Under the control of the control device 5, the imaging unit 202 receives the subject image formed on the light receiving surface by the optical system 201 and performs photoelectric conversion, thereby generating subject image data. 1 output to the transmission / reception unit 204. Specifically, the imaging unit 202 generates subject image data based on a clock signal input from the control device 5 via the first transmission / reception unit 204, and outputs the image data to the first transmission / reception unit 204. To do. The imaging unit 202 is configured using an imaging sensor such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor).
　識別情報記録部２０３は、内視鏡２を識別する識別情報を記録する。ここで、識別情報には、内視鏡２を識別するための内視鏡ＩＤ、内視鏡２の画角情報、内視鏡２の年式情報、内視鏡２の種別を示す種別情報、内視鏡２のスペック情報、内視鏡２の画像データの伝送方法、内視鏡２の画像データの伝送レート、および撮像部２０２を駆動するためのクロック信号の周波数に関するクロック情報が含まれる。識別情報記録部２０３は、例えばＲＯＭ（Reaｄ　Only　Memory）やＦｌａｓｈメモリ等を用いて構成される。 The identification information recording unit 203 records identification information for identifying the endoscope 2. Here, the identification information includes an endoscope ID for identifying the endoscope 2, angle-of-view information of the endoscope 2, year information of the endoscope 2, and type information indicating the type of the endoscope 2. , The specification information of the endoscope 2, the transmission method of the image data of the endoscope 2, the transmission rate of the image data of the endoscope 2, and the clock information regarding the frequency of the clock signal for driving the imaging unit 202 are included. . The identification information recording unit 203 is configured using, for example, a ROM (Reed Only Memory), a flash memory, or the like.
　第１送受信部２０４は、撮像部２０２から入力された画像データおよび識別情報記録部２０３が記録する識別情報を制御装置５へ出力するとともに、制御装置５から入力されたクロック信号を撮像部２０２へ出力する。第１送受信部２０４は、例えばＦＰＧＡ（Field　Programmable　Gate　Array）を用いて構成される。また、第１送受信部２０４は、例えば内視鏡２のコネクタ部２７に配置される。 The first transmission / reception unit 204 outputs the image data input from the imaging unit 202 and the identification information recorded by the identification information recording unit 203 to the control device 5, and the clock signal input from the control device 5 to the imaging unit 202. Output. The first transmission / reception unit 204 is configured using, for example, an FPGA (Field Programmable Gate Array). Moreover, the 1st transmission / reception part 204 is arrange | positioned at the connector part 27 of the endoscope 2, for example.
　〔制御装置の構成〕
　次に、制御装置５の構成について説明する。
　制御装置５は、内視鏡２を駆動するためのクロック信号を生成するとともに、画像データにＡ／Ｄ変換等の画像処理を行うデジタル基板５１（二次回路基板）と、内視鏡２から入力された画像データを受信して所定の信号処理を行うアナログ基板５２（患者回路基板）と、デジタル基板５１とアナログ基板５２とを電気的に絶縁するとともに、デジタル基板５１とアナログ基板５２との間の信号伝送を行う絶縁伝送部５３と、を備える。デジタル基板５１およびアナログ基板５２は、互いに異なる基準電位に接地されている。 [Configuration of control device]
Next, the configuration of the control device 5 will be described.
The control device 5 generates a clock signal for driving the endoscope 2 and performs image processing such as A / D conversion on image data, and a digital circuit board 51 (secondary circuit board). The analog board 52 (patient circuit board) that receives input image data and performs predetermined signal processing is electrically insulated from the digital board 51 and the analog board 52, and the digital board 51 and the analog board 52 And an insulating transmission unit 53 that performs signal transmission between them. The digital board 51 and the analog board 52 are grounded at different reference potentials.
　〔デジタル基板の構成〕
　まず、デジタル基板５１について説明する。
　デジタル基板５１は、回路を安定に動作させるための接地および内視鏡システム１の操作者の安全性を確保するための接地が施された回路基板である。デジタル基板５１は、識別部５１１と、生成部５１２と、変更部５１３と、画像処理部５１４と、記録部５１５と、制御部５１６と、を有する。 [Configuration of digital board]
First, the digital substrate 51 will be described.
The digital board 51 is a circuit board on which grounding for stably operating the circuit and grounding for ensuring the safety of the operator of the endoscope system 1 are performed. The digital board 51 includes an identification unit 511, a generation unit 512, a change unit 513, an image processing unit 514, a recording unit 515, and a control unit 516.
　識別部５１１は、制御装置５に接続された内視鏡２の種別を識別する。具体的には、識別部５１１は、アナログ基板５２および絶縁伝送部５３を介して入力された識別情報に基づいて、制御装置５に接続された内視鏡２の種別を識別し、この識別結果を変更部５１３へ出力する。 The identification unit 511 identifies the type of the endoscope 2 connected to the control device 5. Specifically, the identification unit 511 identifies the type of the endoscope 2 connected to the control device 5 based on the identification information input via the analog board 52 and the insulating transmission unit 53, and the identification result Is output to the changing unit 513.
　生成部５１２は、制御装置５に接続される内視鏡２に設けられた撮像部２０２を駆動するためのクロック信号を生成して変更部５１３へ出力する。生成部５１２は、マスタークロックジェネレータを用いて構成される。 The generating unit 512 generates a clock signal for driving the imaging unit 202 provided in the endoscope 2 connected to the control device 5 and outputs the clock signal to the changing unit 513. The generation unit 512 is configured using a master clock generator.
　変更部５１３は、識別部５１１から入力された識別結果に基づいて、生成部５１２から入力されるクロック信号の周波数を識別部５１１の識別結果に応じた周波数に変更し、この周波数を変更したクロック信号を絶縁伝送部５３へ出力する。変更部５１３は、マルチクロックジェネレータを用いて構成される。 Based on the identification result input from the identification unit 511, the changing unit 513 changes the frequency of the clock signal input from the generation unit 512 to a frequency corresponding to the identification result of the identification unit 511, and changes the frequency of the clock. The signal is output to the insulating transmission unit 53. The changing unit 513 is configured using a multi-clock generator.
　画像処理部５１４は、制御部５１６の制御のもと、絶縁伝送部５３を介して入力された画像データに対して所定の画像処理を行って表示装置４へ出力する。ここで、所定の画像処理とは、例えば、オプティカルブラック減算処理、ホワイトバランス調整処理、カラーマトリクス演算処理、ガンマ補正処理、色再現処理、エッジ強調処理およびフォーマット変換処理等のデジタルの画像処理である。画像処理部５１４は、ＦＰＧＡ等を用いて構成される。 The image processing unit 514 performs predetermined image processing on the image data input via the insulated transmission unit 53 and outputs the image data to the display device 4 under the control of the control unit 516. Here, the predetermined image processing is, for example, digital image processing such as optical black subtraction processing, white balance adjustment processing, color matrix calculation processing, gamma correction processing, color reproduction processing, edge enhancement processing, and format conversion processing. . The image processing unit 514 is configured using an FPGA or the like.
　記録部５１５は、ＲＯＭ（Read　Only　Memory）やＲＡＭ（Random　Access　Memory）を用いて構成され、画像データや内視鏡システム１に関する各種情報を記録する。また、記録部５１５は、内視鏡システム１が実行するプログラムを記録するプログラム記録部５１５ａを有する。 The recording unit 515 is configured using a ROM (Read Only Memory) or a RAM (Random Access Memory), and records image data and various types of information related to the endoscope system 1. Further, the recording unit 515 includes a program recording unit 515a that records a program executed by the endoscope system 1.
　制御部５１６は、ＣＰＵ（Central　Processing　Unit）等を用いて構成され、内視鏡システム１を構成する各部を統括的に制御する。 The control unit 516 is configured using a CPU (Central Processing Unit) or the like, and comprehensively controls each unit configuring the endoscope system 1.
　〔アナログ基板の構成〕
　次に、アナログ基板５２について説明する。
　アナログ基板５２は、デジタル基板５１と絶縁され、デジタル基板５１の基準電位と異なる基準電位で接地された回路基板である。アナログ基板５２は、第２送受信部５２１と、除去部５２２と、を有する。 [Configuration of analog board]
Next, the analog substrate 52 will be described.
The analog substrate 52 is a circuit substrate that is insulated from the digital substrate 51 and grounded at a reference potential different from the reference potential of the digital substrate 51. The analog substrate 52 includes a second transmission / reception unit 521 and a removal unit 522.
　第２送受信部５２１は、絶縁伝送部５３を介して入力されたクロック信号を受信し、この受信したクロック信号を除去部５２２へ出力する。また、第２送受信部５２１は、後述する除去部５２２によってジッタ成分が除去されたクロック信号を受信し、このジッタ成分が除去されたクロック信号を、第２送受信部５２１を介して内視鏡２の第１送受信部２０４へ送信する。さらに、第２送受信部５２１は、内視鏡２の第１送受信部２０４から入力された画像データに対して、ノイズ除去処理やゲイン調整処理を行って後に、Ａ／Ｄ変換を行ってデジタルの画像データを生成し、このデジタルの画像データを、絶縁伝送部５３を介して画像処理部５１４へ出力する。第２送受信部５２１は、ＦＰＧＡ等を用いて構成される。なお、本実施の形態では、第２送受信部５２１が送信部として機能する。 The second transmission / reception unit 521 receives the clock signal input via the insulating transmission unit 53 and outputs the received clock signal to the removal unit 522. Also, the second transmission / reception unit 521 receives the clock signal from which the jitter component has been removed by the removal unit 522 described later, and receives the clock signal from which the jitter component has been removed via the second transmission / reception unit 521 in the endoscope 2. To the first transmission / reception unit 204. Further, the second transmission / reception unit 521 performs noise removal processing and gain adjustment processing on the image data input from the first transmission / reception unit 204 of the endoscope 2 and then performs A / D conversion to perform digital processing. Image data is generated, and the digital image data is output to the image processing unit 514 via the insulating transmission unit 53. The second transmission / reception unit 521 is configured using an FPGA or the like. In the present embodiment, the second transmission / reception unit 521 functions as a transmission unit.
　除去部５２２は、生成部５１２から見て絶縁伝送部５３の後段側に設けられる。除去部５２２は、第２送受信部５２１から入力されたクロック信号に含まれるジッタ成分を除去して第２送受信部５２１へ出力する。除去部５２２は、クロッククリーナ等を用いて構成される。 The removal unit 522 is provided on the rear side of the insulating transmission unit 53 when viewed from the generation unit 512. The removal unit 522 removes a jitter component included in the clock signal input from the second transmission / reception unit 521 and outputs the jitter component to the second transmission / reception unit 521. The removing unit 522 is configured using a clock cleaner or the like.
　次に、絶縁伝送部５３について説明する。
　絶縁伝送部５３は、変更部５１３によって周波数が変更されたクロック信号を、生成部５１２から絶縁して第２送受信部５２１へ伝送する。絶縁伝送部５３は、アイソレーションアンプ等を用いて構成される。具体的には、絶縁伝送部５３は、第１パルストランス５３１と、第２パルストランス５３２と、を有する。 Next, the insulating transmission unit 53 will be described.
The insulating transmission unit 53 insulates the clock signal whose frequency has been changed by the changing unit 513 from the generating unit 512 and transmits the clock signal to the second transmitting / receiving unit 521. The insulating transmission unit 53 is configured using an isolation amplifier or the like. Specifically, the insulating transmission unit 53 includes a first pulse transformer 531 and a second pulse transformer 532.
　第１パルストランス５３１は、デジタル基板５１とアナログ基板５２との間に設けられてなり、変更部５１３から入力されたクロック信号を第２送受信部５２１へ伝送する。第１パルストランス５３１は、磁性体コアに一次巻線と二次巻線とが施されてなり、一次巻線と二次巻線とにより、デジタル基板５１とアナログ基板５２とを絶縁する。 The first pulse transformer 531 is provided between the digital board 51 and the analog board 52 and transmits the clock signal input from the changing unit 513 to the second transmitting / receiving unit 521. The first pulse transformer 531 has a magnetic core provided with a primary winding and a secondary winding, and the digital substrate 51 and the analog substrate 52 are insulated from each other by the primary winding and the secondary winding.
　第２パルストランス５３２は、デジタル基板５１とアナログ基板５２との間に設けられてなり、第２送受信部５２１から入力されたデジタルの画像データを画像処理部５１４へ伝送する。第２パルストランス５３２は、磁性体コアに一次巻線と二次巻線とが施されてなり、一次巻線と二次巻線とにより、デジタル基板５１とアナログ基板５２とを絶縁する。 The second pulse transformer 532 is provided between the digital board 51 and the analog board 52 and transmits digital image data input from the second transmitting / receiving unit 521 to the image processing unit 514. The second pulse transformer 532 has a magnetic core provided with a primary winding and a secondary winding, and the digital substrate 51 and the analog substrate 52 are insulated from each other by the primary winding and the secondary winding.
　以上説明した本発明の一実施の形態によれば、除去部５２２が絶縁伝送部５３から伝送されたクロック信号に含まれるジッタ成分を除去し、第２送受信部５２１が除去部５２２によってジッタ成分が除去されたクロック信号を内視鏡２へ送信するので、クロック信号に含まれるジッタ成分の影響を防止することができる。 According to the embodiment of the present invention described above, the removal unit 522 removes the jitter component included in the clock signal transmitted from the isolated transmission unit 53, and the second transmission / reception unit 521 removes the jitter component by the removal unit 522. Since the removed clock signal is transmitted to the endoscope 2, the influence of the jitter component included in the clock signal can be prevented.
　また、本発明の一実施の形態によれば、変更部５１３をマルチクロックジェネレータによって構成し、変更部５１３が生成部５１２によって生成されたクロック信号の周波数を識別部５１１が取得した識別情報に基づく識別結果に応じた周波数に変更して出力するので、制御装置５に接続される内視鏡２の種別毎にクロック信号を発信する発信器の数を省略することができるので、回路基板の小型化を図ることができる。 Further, according to an embodiment of the present invention, the changing unit 513 is configured by a multi-clock generator, and the changing unit 513 is based on the identification information obtained by the identifying unit 511 on the frequency of the clock signal generated by the generating unit 512. Since the frequency is changed according to the identification result and output, the number of transmitters that transmit a clock signal for each type of endoscope 2 connected to the control device 5 can be omitted. Can be achieved.
　さらに、本発明の一実施の形態によれば、変更部５１３をジッタ性能が劣るマルチクロックジェネレータによって構成した場合であっても、除去部５２２が絶縁伝送部５３から伝送されたクロック信号に含まれるジッタ成分を除去するので、クロック信号に含まれるジッタ成分の影響を防止することができる。 Furthermore, according to one embodiment of the present invention, even when the changing unit 513 is configured by a multi-clock generator having inferior jitter performance, the removing unit 522 is included in the clock signal transmitted from the insulated transmission unit 53. Since the jitter component is removed, the influence of the jitter component included in the clock signal can be prevented.
　また、本発明の一実施の形態では、絶縁伝送部５３を第１パルストランス５３１および第２パルストランス５３２によって構成していたが、他のアイソレーションアンプを用いて構成してもよい。例えば画像データまたはクロック信号を光信号に変換して出力するとともに、光信号を受光して電気信号に変換するフォトカプラ等を用いて構成してもよい。 In the embodiment of the present invention, the insulating transmission unit 53 is configured by the first pulse transformer 531 and the second pulse transformer 532, but may be configured by using another isolation amplifier. For example, image data or a clock signal may be converted into an optical signal and output, and a photocoupler that receives the optical signal and converts it into an electrical signal may be used.
　また、本発明の一実施の形態では、除去部５２２がアナログ基板５２に設けられていたが、例えば内視鏡２の電気コネクタ部２８内に設け、第１送受信部２０４が受信したクロック信号に対して、ジッタ成分を除去してもよい。 In the embodiment of the present invention, the removal unit 522 is provided on the analog substrate 52. However, for example, the removal unit 522 is provided in the electrical connector unit 28 of the endoscope 2 and the clock signal received by the first transmission / reception unit 204 is used. On the other hand, the jitter component may be removed.
　また、本発明の一実施の形態では、変更部５１３をマルチクロックジェネレータによって構成していたが、例えば互いに周波数が異なるクロック信号を選択可能なように複数のクロックジェネレータを用いて構成してもよい。 In the embodiment of the present invention, the changing unit 513 is configured by a multi-clock generator. However, the changing unit 513 may be configured by using a plurality of clock generators so that clock signals having different frequencies can be selected. .
　また、本発明の一実施の形態では、伝送ケーブルを介して画像データを制御装置５へ送信していたが、例えば有線である必要はなく、無線であってもよい。この場合、所定の無線通信規格（例えばＷｉ－Ｆｉ（登録商標）やＢｌｕｅｔｏｏｔｈ（登録商標））に従って、画像データ等を制御装置へ送信するようにすればよい。もちろん、他の無線通信規格に従って無線通信を行ってもよい。 In the embodiment of the present invention, the image data is transmitted to the control device 5 via the transmission cable. However, for example, the image data does not need to be wired and may be wireless. In this case, image data or the like may be transmitted to the control device in accordance with a predetermined wireless communication standard (for example, Wi-Fi (registered trademark) or Bluetooth (registered trademark)). Of course, wireless communication may be performed according to other wireless communication standards.
　また、本発明の一実施の形態では、制御装置５と光源装置３とが別体であったが、これに限定されることなく、例えば制御装置と光源装置とを一体的に形成してもよい。 In the embodiment of the present invention, the control device 5 and the light source device 3 are separate bodies. However, the present invention is not limited to this. For example, the control device and the light source device may be integrally formed. Good.
　また、本発明の一実施の形態では、同時式の内視鏡を例に説明したが、面順次式の内視鏡であっても適用することができる。 In the embodiment of the present invention, the simultaneous endoscope has been described as an example, but the present invention can also be applied to a frame sequential endoscope.
　また、本発明の一実施の形態では、被検体に挿入される内視鏡であったが、例えばカプセル型の内視鏡または被検体を撮像する撮像装置であっても適用することができる。 In the embodiment of the present invention, the endoscope is inserted into the subject. However, for example, a capsule endoscope or an imaging device that images the subject can also be applied.
　また、本発明の一実施の形態では、軟性内視鏡（上下内視鏡スコープ）以外にも、硬性内視鏡、副鼻腔内視鏡および電気メスや検査プローブ等の電磁両立性（Electro　Magnetic　Compatibility：EMC）対策が必要な医療装置であっても適用することができる。 Further, in one embodiment of the present invention, in addition to the flexible endoscope (upper and lower endoscope scope), the electromagnetic compatibility (Electro Magnetic) of a rigid endoscope, a sinus endoscope, an electric knife, a test probe, and the like. Compatibility: EMC) Even medical devices that require countermeasures can be applied.
　以上、本願の実施の形態のいくつかを図面に基づいて詳細に説明したが、これらは例示であり、発明の開示の欄に記載の態様を始めとして、当業者の知識に基づいて種々の変形、改良を施した他の形態で本発明を実施することが可能である。 The embodiments of the present application have been described in detail with reference to the drawings. However, these are merely examples, and various modifications can be made based on the knowledge of those skilled in the art including the aspects described in the disclosure section of the invention. It is possible to implement the present invention in other forms that have been improved.
　１　内視鏡システム
　２　内視鏡
　３　光源装置
　４　表示装置
　５　制御装置
　２１　挿入部
　２２　操作部
　２７　コネクタ部
　５１　デジタル基板
　５２　アナログ基板
　５３　絶縁伝送部
　２０１　光学系
　２０２　撮像部
　２０３　識別情報記録部
　５１１　識別部
　５１２　生成部
　５１３　変更部
　５１４　画像処理部
　５１５　記録部
　５１５ａ　プログラム記録部
　５１６　制御部
　５２１　第２送受信部
　５２２　除去部
　５３１　第１パルストランス
　５３２　第２パルストランス DESCRIPTION OF SYMBOLS 1 Endoscope system 2 Endoscope 3 Light source device 4 Display apparatus 5 Control apparatus 21 Insertion part 22 Operation part 27 Connector part 51 Digital board 52 Analog board 53 Insulation transmission part 201 Optical system 202 Imaging part 203 Identification information recording part 511 Identification Unit 512 generating unit 513 changing unit 514 image processing unit 515 recording unit 515a program recording unit 516 control unit 521 second transmission / reception unit 522 removal unit 531 first pulse transformer 532 second pulse transformer

Claims (7)

  1. 　被検体内に挿入され、該被検体内の画像データを生成する内視鏡と、該内視鏡が接続される制御装置と、を備えた医療撮像システムであって、
    　前記内視鏡を駆動するためのクロック信号を生成する生成部と、
    　前記制御装置に接続された前記内視鏡の種別を識別する識別部と、
    　前記生成部が生成した前記クロック信号の周波数を、前記識別部が識別した識別結果に応じた周波数に変更して出力する変更部と、
    　前記変更部によって前記周波数が変更された前記クロック信号を、前記生成部から絶縁して伝送する絶縁伝送部と、
    　前記絶縁伝送部から伝送された前記クロック信号に含まれるジッタ成分を除去する除去部と、
    　前記除去部が前記ジッタ成分を除去した前記クロック信号を前記内視鏡へ送信する送信部と、
    　を備えたことを特徴とする医療撮像システム。     A medical imaging system comprising: an endoscope that is inserted into a subject and generates image data in the subject; and a control device to which the endoscope is connected,
    A generator for generating a clock signal for driving the endoscope;
    An identification unit for identifying the type of the endoscope connected to the control device;
    A changing unit for changing the frequency of the clock signal generated by the generating unit to a frequency according to the identification result identified by the identifying unit;
    An insulated transmission unit that insulates and transmits the clock signal having the frequency changed by the changing unit, isolated from the generation unit;
    A removing unit for removing a jitter component included in the clock signal transmitted from the insulating transmission unit;
    A transmission unit that transmits the clock signal from which the removal unit has removed the jitter component to the endoscope;
    A medical imaging system comprising:
  2. 　前記変更部は、マルチクロックジェネレータであることを特徴とする請求項１に記載の医療撮像システム。 The medical imaging system according to claim 1, wherein the changing unit is a multi-clock generator.
  3. 　前記絶縁伝送部は、パルストランスを有することを特徴とする請求項１または２に記載の医療撮像システム。 The medical imaging system according to claim 1 or 2, wherein the insulating transmission unit includes a pulse transformer.
  4. 　前記絶縁伝送部は、フォトカプラを有することを特徴とする請求項１または２に記載の医療撮像システム。 The medical imaging system according to claim 1 or 2, wherein the insulating transmission unit includes a photocoupler.
  5. 　前記制御装置は、
    　電気的に絶縁される第１および第２の基板を備え、
    　前記第１の基板には、前記生成部、前記識別部および前記変更部が設けられてなり、
    　前記第２の基板には、前記除去部および前記送信部が設けられてなり、
    　前記絶縁伝送部は、前記第１の基板と前記第２の基板との間を絶縁し、かつ、前記変更部によって前記周波数が変更された前記クロック信号を前記除去部へ伝送することを特徴とする請求項１～４のいずれか一つに記載の医療撮像システム。     The control device includes:
    First and second substrates that are electrically isolated;
    The first substrate is provided with the generation unit, the identification unit, and the change unit,
    The second substrate is provided with the removing unit and the transmitting unit,
    The insulating transmission unit insulates between the first substrate and the second substrate, and transmits the clock signal whose frequency is changed by the changing unit to the removing unit. The medical imaging system according to any one of claims 1 to 4.
  6. 　前記内視鏡は、
    　前記制御装置に着脱自在に接続可能なコネクタ部を備え、
    　前記除去部は、前記コネクタ部に設けられていることを特徴とする請求項１～４のいずれか一つに記載の医療撮像システム。     The endoscope is
    A connector portion that can be detachably connected to the control device,
    The medical imaging system according to any one of claims 1 to 4, wherein the removing unit is provided in the connector unit.
  7. 　被検体内に挿入され、該被検体内の画像データを生成する内視鏡が接続される制御装置であって、
    　前記内視鏡を駆動するためのクロック信号を生成する生成部と、
    　前記制御装置に接続された前記内視鏡の種別を識別する識別部と、
    　前記生成部が生成した前記クロック信号の周波数を、前記識別部が識別した識別結果に応じた周波数に変更して出力する変更部と、
    　前記変更部によって前記周波数が変更された前記クロック信号を、前記生成部から絶縁して伝送する絶縁伝送部と、
    　前記絶縁伝送部から伝送された前記クロック信号に含まれるジッタ成分を除去する除去部と、
    　前記除去部が前記ジッタ成分を除去した前記クロック信号を前記内視鏡へ送信する送信部と、
    　を備えたことを特徴とする制御装置。     A control device connected to an endoscope that is inserted into a subject and generates image data in the subject,
    A generator for generating a clock signal for driving the endoscope;
    An identification unit for identifying the type of the endoscope connected to the control device;
    A changing unit for changing the frequency of the clock signal generated by the generating unit to a frequency according to the identification result identified by the identifying unit;
    An insulated transmission unit that insulates and transmits the clock signal having the frequency changed by the changing unit, isolated from the generation unit;
    A removing unit for removing a jitter component included in the clock signal transmitted from the insulating transmission unit;
    A transmission unit that transmits the clock signal from which the removal unit has removed the jitter component to the endoscope;
    A control device comprising:
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Citations (3)

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JP2003325443A (en) * 2002-05-08 2003-11-18 Olympus Optical Co Ltd Electronic endoscopic equipment
JP2004230061A (en) * 2003-01-31 2004-08-19 Olympus Corp Imaging apparatus
JP2013000450A (en) * 2011-06-20 2013-01-07 Olympus Corp Electronic endoscope device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000279381A (en) * 1999-03-30 2000-10-10 Toshiba Corp Electronic endoscope device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003325443A (en) * 2002-05-08 2003-11-18 Olympus Optical Co Ltd Electronic endoscopic equipment
JP2004230061A (en) * 2003-01-31 2004-08-19 Olympus Corp Imaging apparatus
JP2013000450A (en) * 2011-06-20 2013-01-07 Olympus Corp Electronic endoscope device

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