WO2020246006A1 - Dispositif d'antenne et système d'antenne - Google Patents

Dispositif d'antenne et système d'antenne Download PDF

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Publication number
WO2020246006A1
WO2020246006A1 PCT/JP2019/022636 JP2019022636W WO2020246006A1 WO 2020246006 A1 WO2020246006 A1 WO 2020246006A1 JP 2019022636 W JP2019022636 W JP 2019022636W WO 2020246006 A1 WO2020246006 A1 WO 2020246006A1
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WO
WIPO (PCT)
Prior art keywords
antenna
cable
antennas
signal
antenna device
Prior art date
Application number
PCT/JP2019/022636
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English (en)
Japanese (ja)
Inventor
徹 宮園
Original Assignee
オリンパス株式会社
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Filing date
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 PCT/JP2019/022636 priority Critical patent/WO2020246006A1/fr
Publication of WO2020246006A1 publication Critical patent/WO2020246006A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles

Definitions

  • the present invention relates to an antenna device and an antenna system having an antenna for receiving a radio signal.
  • capsule-type endoscopes having a built-in imaging function, wireless communication function, etc. in a capsule-shaped housing formed in a size that can be introduced into the digestive tract of a subject such as a patient are known.
  • this capsule-type endoscope moves inside the subject such as in the digestive tract by peristaltic movement, etc., and sequentially images the inside of the subject to generate image data, and this image is generated.
  • Data is transmitted wirelessly in sequence.
  • the image data wirelessly transmitted by the capsule endoscope is received by the receiving device via a plurality of antennas provided outside the subject. One end of each of the plurality of antennas is connected to the device via a cable, and the other end is fixed to the body surface of the subject (see, for example, Patent Document 1).
  • each antenna of Patent Document 1 is connected to a cable extending individually from one device, and has high flexibility for the mounting position on the subject, but the mounting order can be confirmed and the mounting on the subject according to the mounting order. It took time and effort.
  • the present invention has been made in view of the above, and provides an antenna device and an antenna system that are highly flexible in the mounting position of the antenna on a subject and can simplify the mounting effort.
  • the purpose is.
  • the antenna device connects a plurality of antennas for receiving and transmitting a radio signal to a medical device in series with the plurality of antennas. It is characterized by providing a cable to be used.
  • the antenna device according to the present invention is characterized in that, in the above invention, the cable is a coaxial cable or a flexible substrate.
  • the antenna device has a plurality of transmission lines connected to the plurality of antennas to transmit signals and a plurality of electrical connection states of the plurality of antennas and the transmission line. It is characterized by including a switching unit.
  • each of the plurality of antennas has a dipole antenna composed of a pair of elements for transmitting and receiving a radio signal to the medical device, and the transmission line is a flat surface. It is characterized in that it visually passes through the space between the elements.
  • the antenna device is further provided with a connector portion provided on the side opposite to the side of the transmission line connected to the antenna and connected to an external device, and the antenna is said to be said.
  • the matching unit has a matching unit that amplifies the signal output by the pair of antenna elements that have received the radio signal, and the matching unit is the transmission line that connects the antenna, the antenna, and the connector unit. The signal is amplified at an amplification factor set according to the length of the signal.
  • the antenna device according to the present invention is characterized in that, in the above invention, the medical device is a capsule type endoscope.
  • the antenna device according to the present invention is characterized in that, in the above invention, the antenna device is arranged on the body surface of the subject and includes a housing portion for accommodating the antenna.
  • the antenna device according to the present invention is characterized in that the accommodating portion has a flat shape.
  • a plurality of antennas that receive and transmit a radio signal to a medical device, a cable that connects the plurality of antennas in series, and a connection between each antenna and the cable. It is characterized by including a switching control unit that controls switching of states.
  • the antenna has high flexibility in the mounting position to the subject and the labor of mounting can be simplified.
  • FIG. 1 is a schematic view showing a schematic configuration of a capsule-type endoscope system including the antenna device according to the first embodiment of the present invention.
  • FIG. 2 is a schematic view showing a schematic configuration of the antenna device shown in FIG.
  • FIG. 3 is a diagram illustrating a configuration of a main part of the antenna device according to the first embodiment of the present invention.
  • FIG. 4 is a diagram illustrating a state before switching control of the antenna device according to the first embodiment of the present invention.
  • FIG. 5 is a diagram illustrating an example of switching control of the antenna device according to the first embodiment of the present invention.
  • FIG. 6A is a diagram illustrating an example of routing the antenna (No. 1).
  • FIG. 6B is a diagram illustrating an example of routing the antenna (No. 2).
  • FIG. 6A is a diagram illustrating an example of routing the antenna (No. 1).
  • FIG. 6B is a diagram illustrating an example of routing the antenna (No. 2).
  • FIG. 1 is a
  • FIG. 6C is a diagram illustrating an example of routing the antenna (No. 3).
  • FIG. 7 is a diagram illustrating a configuration of a main part of the antenna device according to the second embodiment of the present invention.
  • FIG. 8 is a diagram illustrating a configuration of a main part of the antenna device according to the third embodiment of the present invention.
  • FIG. 9 is a diagram illustrating a configuration of a main part of the antenna device according to the fourth embodiment of the present invention.
  • FIG. 10 is a diagram illustrating a configuration of a main part of the antenna device according to the fifth embodiment of the present invention.
  • FIG. 11 is a diagram illustrating a configuration of a main part of the antenna device according to the sixth embodiment of the present invention.
  • FIG. 1 is a schematic view showing a schematic configuration of a capsule-type endoscope system including the antenna device according to the first embodiment of the present invention.
  • the capsule-type endoscope system 1 shown in FIG. 1 is transmitted from the capsule-type endoscope 3 as a medical device introduced into the subject 2 and the capsule-type endoscope 3 introduced into the subject 2.
  • An antenna device 4 having a plurality of antennas for receiving a radio signal, and a receiving device 5 to which the antenna device 4 is detachably connected to perform predetermined processing on the radio signal received by the antenna device 4 and record or display the radio signal. It includes an image processing device 7 that processes and / or displays image data in the subject 2 imaged by the capsule endoscope 3.
  • the antenna system is composed of the antenna device 4 and the receiving device 5.
  • the capsule-type endoscope 3 has an imaging function for imaging the inside of the subject 2 and a wireless function for transmitting a wireless signal including image data obtained by imaging the inside of the subject 2 to the antenna.
  • the capsule endoscope 3 passes through the esophagus in the subject 2 by being swallowed in the subject 2, and moves in the subject 2 by the peristaltic movement of the gastrointestinal tract.
  • the capsule endoscope 3 sequentially images the inside of the subject 2 at minute time intervals, for example, 0.5 second intervals (2 fps) while moving in the subject 2, and captures the image data in the imaged subject 2. It is generated and sequentially transmitted to the antenna device 4.
  • the capsule endoscope 3 outputs, for example, a radio signal having a frequency of 300 MHz or more and 500 MHz or less.
  • FIG. 2 is a schematic diagram showing a schematic configuration of the antenna device shown in FIG.
  • FIG. 3 is a diagram illustrating a configuration of a main part of the antenna device according to the first embodiment of the present invention.
  • each antenna is attached to the subject 2 (see FIG. 1). Further, each antenna and the receiving device 5 are connected by a cable.
  • FIG. 3 is a schematic diagram showing a schematic configuration of the receiving device shown in FIG.
  • FIG. 4 is a diagram illustrating a state before switching control of the antenna device according to the first embodiment of the present invention.
  • the cable 42 is divided into blocks for the sake of explanation, but it actually has a linear shape having a flexible diameter.
  • FIG. 5 which will be described later.
  • the receiving device 5 shown in FIG. 4 controls a recording unit that records data obtained by subjecting the radio signal received by the antenna device 4 to a predetermined process, a processing unit that executes a process related to display, and the antenna device 4.
  • the description of the control unit and the like to be controlled is omitted.
  • the antenna device 4 includes a plurality of antennas (antennas 41A to 41H) that receive radio signals from the capsule endoscope 3, a cable 42 that connects each antenna and the receiving device 5, and a connector portion 43 that connects to the receiving device 5. And have.
  • the antennas 41A to 41H are connected to the cable 42 in the order of the antennas 41A to 41H from the connector portion 43 side.
  • the antennas 41A to 41H are formed by accommodating the antenna element 411 in the accommodating portion 410 accommodating the antenna element 411.
  • the antennas 41A to 41H are arranged in series. In other words, the antennas 41A to 41H are connected in a string by a cable 42.
  • the number of antennas will be described as eight, but the number of antennas is not limited to eight and may be at least two.
  • the accommodating portion 410 is formed of resin or the like and has a flat shape.
  • the accommodating portion 410 has a structure that covers a part or the whole of the antenna element 411.
  • the accommodating portion 410 is formed by laminating with a resin film, and when forming a bag shape, an openable / closable opening formed by using a point fastener, a wire fastener, or a hook-and-loop fastener. It has a structure.
  • the accommodating portion 410 is provided with an attachment member to be attached to the subject 2 on one surface.
  • the mounting member for example, a known sticking member such as a seal is used.
  • the accommodating portion 410 may be attached to the subject 2 by using a belt wrapped around the subject 2.
  • the antenna element 411 receives the radio signal from the capsule endoscope 3 and outputs the received signal to the cable 42.
  • the antenna element 411 has an antenna portion 411a and a matching portion 411b.
  • the antenna portion 411a is configured by using, for example, a dipole antenna composed of a pair of elements 4111 and 4112. In the first embodiment, the elements 4111 and 4112 of the dipole antenna extend in parallel with the extending direction of the cable 42.
  • the antenna portion 411a may be configured by using a monopole antenna, a chip antenna, or the like.
  • the matching unit 411b converts the signal output by the antenna unit 411a, which receives the radio signal from the capsule endoscope 3, from unbalanced to balanced, performs impedance matching, and amplifies the signal.
  • the matching unit 411b is composed of one or a plurality of circuits.
  • the matching unit 411b amplifies the signal at an amplification factor set according to the length of the antenna and the cable 42 (antenna cable 421 described later) connecting the antenna and the connector unit 43.
  • the length of the transmission line (cable) of the antenna 41H is longer than the length of the transmission line (cable) of the antenna 41A.
  • the amplification factor of the signal acquired by the antenna 41H is made larger than the amplification factor of the signal acquired by the antenna 41A.
  • the amplification factor is not limited to the above, and may be set to a uniform amplification factor or may be set by the user.
  • the antenna element 411 is mounted on a substrate (not shown). This substrate may be configured by using a flexible substrate that can be flexed, or may be configured by using a rigid substrate having rigidity.
  • the cable 42 transmits a control signal such as an antenna cable 421 that transmits a radio signal received by each antenna and a signal transmitted to the antenna, and an antenna switching signal for selecting an antenna that transmits the radio signal to the receiving device 5. It has a control cable 422 and a control cable 422. In the cable 42, the antenna cable 421 and the control cable 422 are covered with a covering tube or the like. The antenna cable 421 corresponds to a transmission line.
  • each antenna is provided with switches (switches 412A to 412H) for switching the signal transmission path (only switches 412A, 412B, and 412H are shown in FIG. 4).
  • the switches 412A to 412H correspond to switching units for switching the transmission path connected to the cable (antenna cable 421) on the receiving device 5 side.
  • the switch switches the transmission path to either a first path connecting to an antenna provided with the switch and a second path connecting to an antenna on the subsequent stage side of the antenna.
  • the antenna 41A is provided with a switch 412A, and either the first path connected to the antenna element 411 of the antenna 41A or the second path connected to the antenna 41B (antenna in the subsequent stage). Switch to.
  • the second path of the antenna 41H connected to the rearmost stage is a transmission line connected to a terminal (for example, the terminal) different from the antenna element 411.
  • the antenna cable 421 (transmission line) connects the antennas in series via each switch. That is, the antenna cable 421 has a first connection line for connecting the transmission / reception unit 53 and the switch 412A, a second connection line for connecting the switches 412A and 412B, ..., An eighth connection for connecting the switches 412G and 412H. It consists of lines.
  • FIG. 5 is a diagram illustrating an example of switching control of the antenna device according to the first embodiment of the present invention.
  • the switch of the antenna to be received is switched to the first path.
  • the receiving device 5 shows an example of acquiring the radio signal received by the antenna 41A.
  • the switch 412A of the antenna 41A is switched to the first path.
  • the antenna cable 421 is not electrically connected to the receiving device 5.
  • FIG. 6A is a diagram illustrating an example of routing the antenna (No. 1).
  • FIG. 6B is a diagram illustrating an example of routing the antenna (No. 2).
  • FIG. 6C is a diagram illustrating an example of routing the antenna (No. 3).
  • the antennas 41A to 41H and the cable 42 are spirally routed and placed on the subject 2 (see FIG. 6A).
  • the antennas 41A to 41H and the cable 42 are circulated and placed on the subject 2 (see FIG. 6B). At this time, the antenna 41H farthest from the connector portion 43 on the path of the cable 42 is arranged on the side opposite to the antennas 41A to 41G (the back side of the subject) with respect to the subject 2.
  • the antennas 41A to 41H are routed to the relatively small subject 2, the antennas 41A and 41B located on the connector portion 43 side may be arranged (not used) so as not to be attached to the subject 2 (not used). See FIG. 6C).
  • the receiving device 5 records or records the image data in the subject 2 included in the radio signal transmitted from the capsule endoscope 3 via the plurality of antennas (antennas 41A to 41H).
  • the image corresponding to the image data in 2 is displayed.
  • the receiving device 5 includes a receiving display unit 51 that displays an image corresponding to the image data, and an operating unit 52 that receives an instruction signal for operating the receiving device 5 and an input of information regarding the position of each antenna. Further, the receiving device 5 includes a transmitting / receiving unit 53 that receives a radio signal from the antenna, and a switching control unit 54 that switches the selection path of the switch.
  • the transmission / reception unit 53 and the switching control unit 54 are configured by using a general-purpose processor such as a CPU (Central Processing Unit) or a dedicated processor such as various arithmetic circuits that execute a specific function such as an ASIC (Application Specific Integrated Circuit).
  • a general-purpose processor such as a CPU (Central Processing Unit) or a dedicated processor such as various arithmetic circuits that execute a specific function such as an ASIC (Application Specific Integrated Circuit).
  • the transmission / reception unit 53 receives a radio signal input via each antenna (antennas 41A to 41H) and an antenna cable 421. Further, when transmitting information to the capsule-type endoscope 3, the transmission / reception unit 53 can cause the antenna to transmit the information via the antenna cable 421.
  • the antenna functions as an antenna for transmission and reception.
  • the antenna corresponds to an antenna that performs at least one of a function of receiving a radio signal from the capsule-type endoscope 3 and a function of transmitting a radio signal to the capsule-type endoscope 3. To do.
  • the switching control unit 54 controls the switching of the connection state of each switch by generating a control signal for switching the switch via the control cable 422 and outputting it to each switch.
  • the switching control unit 54 controls switching of the switches 412A to 412H by bit control or command communication.
  • the switching control unit 54 selects antennas for acquiring radio signals in a preset order, and switches the path in the antenna to the first path.
  • the receiving device 5 is configured to calculate and record the receiving strength (received electric field strength) of the received wireless signal for each antenna and estimate the position of the capsule endoscope 3 in the subject 2. Can be done. At this time, the receiving device 5 receives the image data included in the radio signal received from the capsule-type endoscope 3, the reception strength of the radio signal received by each antenna, and the image data generated by the capsule-type endoscope 3. Record the time information in association with each other.
  • the receiving strength received electric field strength
  • the image processing device 7 displays an image corresponding to the image data in the subject 2 acquired through the receiving device 5.
  • the image processing device 7 is configured by using a general-purpose processor such as a CPU, a dedicated processor such as various arithmetic circuits that execute a specific function such as an ASIC, a memory, a monitor, and the like.
  • the image processing device 7 includes a cradle 6 that reads image data and the like from the receiving device 5, an operation input unit 72 such as a mouse 72a and a keyboard 72b, and a display unit 73 that displays an image corresponding to the image data.
  • the cradle 6 When the receiving device 5 is attached, the cradle 6 includes image data from the receiving device 5, reception intensity of each antenna associated with the image data, time information of the image data generated by the capsule endoscope 3, and a capsule.
  • the identification information and the like of the type endoscope 3 are acquired, and the acquired various information is transferred to the image processing device 7.
  • the operation input unit 72 accepts input by the user. The user observes living parts inside the subject 2, such as the esophagus, stomach, small intestine, and large intestine, while operating the operation input unit 72 and viewing the images in the subject 2 sequentially displayed by the image processing device 7. , Diagnose subject 2.
  • a plurality of antennas in which the antenna cables 421 are arranged in series are connected to each other, and an antenna for transmitting a wireless signal to the receiving device 5 is selected by a switch provided on each antenna.
  • the antennas since the antennas are arranged in the order of routing, the antenna has high flexibility in the mounting position to the subject, and the labor of mounting can be simplified.
  • each antenna is connected by one transmission path, that is, connected by one cable (antenna cable 421), the cable 42 can be thinned.
  • the antenna element 411 is held by the accommodation portion 401 having a flat shape, the positional relationship between the antenna element 411 and the body surface of the subject 2 is stabilized, specifically, the antenna of each antenna.
  • the orientation of the portion 411a can be easily aligned.
  • the quality of wireless communication between the capsule endoscope 2 and the antenna can be stabilized.
  • the accommodating portion 410 is formed into a cylinder (or cylinder) shape in the same manner as a cable, it is difficult to align the directions of the antenna portions 411a of each antenna, and the quality of wireless communication between the capsule endoscope 2 and the antenna is high. May become unstable.
  • FIG. 7 is a diagram illustrating a configuration of a main part of the antenna device according to the second embodiment of the present invention.
  • the capsule-type endoscope system according to the second embodiment includes the antenna device 4A and the receiving device 5A in place of the antenna device 4 and the receiving device 5 with respect to the capsule-type endoscope system 1 according to the first embodiment. ..
  • a configuration (antenna device 4A and receiving device 5A) different from the above-described first embodiment will be described.
  • the antenna device 4A includes a plurality of antennas (antennas 41A to 41H) that receive radio signals from the capsule endoscope 3, a cable 42A that connects each antenna and the receiving device 5, and a connector portion 43 that connects to the receiving device 5. (See FIGS. 2 and 3).
  • the antenna devices 4A are connected to the cable 42 in the order of the antennas 41A to 41H from the connector portion 43 side.
  • the cable 42A is divided into blocks for the sake of explanation, but it actually has a linear shape having a flexible diameter.
  • the antennas 41A to 41H have the antenna element 411 accommodated in the accommodating portion 410 accommodating the antenna element 411.
  • the cable 42A includes antenna cables 421A to 421H that transmit radio signals received by each antenna.
  • the antenna cables 421A to 421H are lengthened in the order of arrangement on the subject 2.
  • the antenna cables 421A to 421H are covered with a covering tube or the like.
  • the receiving device 5A includes a transmitting / receiving unit 53A instead of the transmitting / receiving unit 53 and the switching control unit 54 according to the first embodiment.
  • the transmission / reception unit 53A receives a radio signal input via each antenna and antenna cables 421A to 421H.
  • the transmission / reception unit 53A is configured by using a general-purpose processor such as a CPU or a dedicated processor such as various arithmetic circuits that execute a specific function such as an ASIC.
  • the transmission / reception unit 53A has a switching control unit 531 that switches an antenna for acquiring a radio signal.
  • the switching control unit 531 selects an antenna for acquiring a radio signal according to a preset order, and switches the connection state with the antenna cable connected to the antenna.
  • the antenna cables 421A to 421H having different lengths according to the arrangement order are connected to the antennas arranged in series, and the radio signal is selectively acquired by one of the antenna cables.
  • the antennas since the antennas are arranged in the order of routing, the antenna has high flexibility in the mounting position to the subject, and the labor of mounting can be simplified.
  • FIG. 8 is a diagram illustrating a configuration of a main part of the antenna device according to the third embodiment of the present invention.
  • the capsule-type endoscope system according to the third embodiment includes an antenna device 4B instead of the antenna device 4 with respect to the capsule-type endoscope system 1 according to the first embodiment.
  • antenna device 4B instead of the antenna device 4 with respect to the capsule-type endoscope system 1 according to the first embodiment.
  • the antenna device 4B includes a plurality of antennas (antennas 41A to 41H) that receive radio signals from the capsule endoscope 3, a cable 42B that connects each antenna and the receiving device 5, and a connector portion 43 that connects to the receiving device 5. (See FIGS. 2 and 3).
  • the antennas 41A to 41H are directly connected to the cable 42B from the connector portion 43 side in the order of the antennas 41A to 41H.
  • the cable 42B is divided into blocks for the sake of explanation, but it actually has a linear shape having a flexible diameter.
  • the antennas 41A to 41H have the antenna element 411 accommodated in the accommodating portion 410 accommodating the antenna element 411.
  • the cable 42B includes an antenna cable 423 for transmitting a radio signal received by each antenna and a control cable 424 for transmitting a control signal such as an antenna switching signal for selecting an antenna for transmitting the radio signal to the receiving device 5.
  • a control signal such as an antenna switching signal for selecting an antenna for transmitting the radio signal to the receiving device 5.
  • the antenna cable 423 and the control cable 424 are covered with an elastic covering tube or the like.
  • the transmission / reception control of the antenna device 4B of the receiving device 5 is the same as that of the first embodiment.
  • the antenna cable 423 and the control cable 424 are partially formed with telescopic portions 423a and 424a.
  • the expansion / contraction portions 423a and 424a form a spiral shape and expand / contract in the axial direction of winding.
  • the telescopic portions 423a and 424a are not limited to a spiral shape as long as they can be expanded and contracted in the longitudinal direction of the cable.
  • a plurality of antennas in which the antenna cables 423 are arranged in series are connected to each other, and an antenna for transmitting a wireless signal to the receiving device 5 is selected by a switch provided on each antenna.
  • the antennas are arranged in the order of routing, the antenna has high flexibility in the mounting position to the subject, and the labor of mounting can be simplified.
  • the cable 42B is provided with elasticity by the elastic portions 423a and 424a, the flexibility of the subject 2 to the body shape can be further increased.
  • FIG. 9 is a diagram illustrating a configuration of a main part of the antenna device according to the fourth embodiment of the present invention.
  • the control signal is folded into the antenna cable that transmits the radio signal received from the capsule-type endoscope 3, and the radio signal and the control signal are transmitted only by the antenna cable.
  • the capsule-type endoscope system according to the fourth embodiment includes the antenna device 4C and the receiving device 5B in place of the antenna device 4 and the receiving device 5 with respect to the capsule-type endoscope system 1 according to the first embodiment. ..
  • a configuration (antenna device 4C and receiving device 5B) different from the above-described first embodiment will be described.
  • the antenna device 4C includes a plurality of antennas (antennas 41A to 41H) that receive radio signals from the capsule endoscope 3, a cable 42C that connects each antenna and the receiving device 5, and a connector portion 43 that connects to the receiving device 5. (See FIGS. 2 and 3).
  • the antennas 41A to 41H are connected to the cable 42 in this order from the connector portion 43 side.
  • the cable 42C is divided into blocks for the sake of explanation, but it actually has a linear shape having a flexible diameter.
  • the antennas 41A to 41H have the antenna element 411 accommodated in the accommodating portion 410 accommodating the antenna element 411.
  • the antenna element 411 separates the signal from the antenna cable 425 into a path for transmitting a radio signal to the receiving device 5B and a control signal related to switch control (signal separation unit 413A). ⁇ 413H), and a switch control unit (switch control units 414A to 414H) that receives the separated control signal and controls the switch.
  • the cable 42C has an antenna cable 425 that transmits a radio signal received by each antenna.
  • the antenna cable 425 is covered with a covering tube or the like.
  • the receiving device 5B includes a switching control unit 54A instead of the switching control unit 54 described above.
  • the transmission / reception unit 53 receives a radio signal input via each antenna and the antenna cable 425.
  • the switching control unit 54A convolves the control signal in the antenna cable 425 and transmits the control signal to each antenna via the antenna cable 425.
  • the switching control unit 54A convolves the frequency of the signal transmitted by the capsule endoscope 3 or the control signal for controlling the switching of the switches 412A to 412H by time division processing into the antenna cable 425.
  • the switching control unit 54A selects antennas for acquiring radio signals in a preset order, and switches the path in the antenna to the first path.
  • the switching control unit 54A is configured by using a general-purpose processor such as a CPU or a dedicated processor such as various arithmetic circuits that execute a specific function such as an ASIC.
  • a plurality of antennas in which the antenna cables 425 are arranged in series are connected to each other, and an antenna for transmitting a wireless signal to the receiving device 5 is selected by a switch provided on each antenna.
  • the antennas are arranged in the order of routing, the antenna has high flexibility in the mounting position to the subject, and the labor of mounting can be simplified.
  • the signal line to be inserted into the cable 42C is realized by only one antenna cable, the cable 42C can be thinned.
  • FIG. 10 is a diagram illustrating a configuration of a main part of the antenna device according to the fifth embodiment of the present invention.
  • the antenna element 411 of each antenna is arranged so as to extend in a direction different from the extending direction of the cable 42.
  • the antenna included in each antenna is provided.
  • the element (element 4111, 4112) of the element 411 extends in a direction overlapping the extending direction of the cable 42.
  • the capsule-type endoscope system according to the fifth embodiment includes an antenna device 4D instead of the antenna device 4 with respect to the capsule-type endoscope system 1 according to the first embodiment.
  • a configuration (antenna device 4D) different from the above-described first embodiment will be described.
  • the antenna device 4D includes a plurality of antennas (antennas 41A to 41H) that receive radio signals from the capsule endoscope 3, a cable 42 that connects each antenna and the receiving device 5, and a connector portion 43 that connects to the receiving device 5. (See FIGS. 2 and 3).
  • the antenna device 4D has the same components as the antenna device 4 described above. Further, the transmission / reception control of the antenna device 4 of the receiving device 5 is the same as that of the first embodiment. Also in the fifth embodiment, the antennas 41A to 41H are arranged in series. Further, the antenna cable 421 is connected to each of the antennas 41A to 41H. In FIG. 10, the cable 42 is divided into blocks for the sake of explanation, but it actually has a linear shape having a flexible diameter.
  • the antenna portion 411a of the antenna element 411 is configured by using, for example, a dipole antenna.
  • each element of the dipole antenna (elements 4111 and 4112 in FIG. 3) extends perpendicular to the extending direction of the cable 42.
  • the antenna cable 421 passes through the antenna portion 411a.
  • the antenna cable 421 passes through the space formed between the elements of the dipole antenna.
  • the plane at this time is a direction orthogonal to the arrangement direction of the antennas 41A to 41H and a direction in which the antenna cable 421 and each antenna overlap, which corresponds to a paper surface here.
  • FIG. 10 shows an example in which the control cable 422 also passes through the space between the elements, the control cable 422 may pass through a position different from the space between the elements.
  • a plurality of antennas in which the antenna cables 421 are arranged in series are connected to each other, and an antenna for transmitting a wireless signal to the receiving device 5 is selected by a switch provided on each antenna.
  • the antennas are arranged in the order of routing, the antenna has high flexibility in the mounting position to the subject, and the labor of mounting can be simplified.
  • the length of the cable 42 of the accommodating portion 410 in the extending direction can be shortened.
  • the directivity of the antenna and the extending direction of the signal line become perpendicular to each other, so that the signal can be separated more easily. it can.
  • FIG. 11 is a diagram illustrating a configuration of a main part of the antenna device according to the sixth embodiment of the present invention.
  • the cable 42D having the (control cable) is mounted on the flexible substrate.
  • the capsule-type endoscope system according to the sixth embodiment includes an antenna device 4E instead of the antenna device 4 with respect to the capsule-type endoscope system 1 according to the first embodiment.
  • a configuration (antenna device 4E) different from the above-described first embodiment will be described.
  • the antenna device 4E includes an antenna element 411 of each antenna, switches 412A to 412H, a signal line 426a (antenna cable) for transmitting a signal from the antenna, and a signal line 426b (control) for transmitting a control signal for controlling switch switching.
  • the cable 42D having the cable) is mounted on the flexible substrate 426.
  • a pattern is formed on the signal line by etching, printing, plating, or the like.
  • a connector portion 43 (see FIGS. 2 and 3) connected to the receiving device 5 is provided at one end of the flexible substrate 426.
  • the signal line 426a and the signal line 426b function in the same manner as the antenna cable 421 and the control cable 422 described above.
  • the eight antennas are composed of an antenna element 411 and a switch (switches 412A to 412H), each of which is accommodated by the accommodating portion 410.
  • the transmission / reception control of the antenna device 4 of the receiving device 5 is the same as that of the first embodiment.
  • FIG. 11 is a diagram for explanation, and the width of the portion of the flexible substrate 426 in which at least the signal lines 426a and the signal lines 426b are arranged is actually a width that can be flexed. There is.
  • a plurality of antennas in which signal lines 426a are arranged in series are connected to each other, and an antenna for transmitting a wireless signal to the receiving device 5 is selected by a switch provided on each antenna.
  • the antennas are arranged in the order of routing, the antenna has high flexibility in the mounting position to the subject, and the labor of mounting can be simplified.
  • the capsule type endoscope 3 has been described as an example as a medical device, but the present invention is not limited to this, and is introduced into, for example, an implant medical device, a catheter, or a subject. , May be a medical device that acquires pH information and outputs it as a wireless signal.
  • the antenna device and the antenna system according to the present invention have high flexibility in the mounting position of the antenna on the subject, and are useful for simplifying the mounting effort.
  • Capsule type endoscope system 2 Subject 3 Capsule type endoscope 4, 4A, 4B, 4C, 4D, 4E Antenna device 5, 5A, 5B Receiver device 6 Cradle 7 Image processing device 41A to 41H Antenna 42, 42A, 42B, 42C, 42D cable 43 Connector part 51 Reception display part 52 Operation part 53, 53A Transmission / reception part 54, 54A, 531 Switching control part 72 Operation input part 72a Mouse 72b Keyboard 73 Display part 410 Housing part 411 Antenna element 411a Antenna part 411b Matching part 412A to 412H Switch 421, 421A to 421H, 423, 425 Antenna cable 422, 424 Control cable 423a, 424a Telescopic part 426 Flexible board 4111, 4112 Element

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Abstract

Le dispositif d'antenne selon la présente invention comprend : une pluralité d'antennes qui réalisent la réception et/ou l'émission d'un signal sans fil à un dispositif médical ; et des câbles qui connectent la pluralité d'antennes en série. Le dispositif d'antenne selon la présente invention présente une flexibilité élevée en termes de position pour fixer l'antenne à un sujet, et simplifie l'opération de fixation.
PCT/JP2019/022636 2019-06-06 2019-06-06 Dispositif d'antenne et système d'antenne WO2020246006A1 (fr)

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PCT/JP2019/022636 WO2020246006A1 (fr) 2019-06-06 2019-06-06 Dispositif d'antenne et système d'antenne

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Application Number Priority Date Filing Date Title
PCT/JP2019/022636 WO2020246006A1 (fr) 2019-06-06 2019-06-06 Dispositif d'antenne et système d'antenne

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WO2020246006A1 true WO2020246006A1 (fr) 2020-12-10

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63292731A (ja) * 1987-05-23 1988-11-30 Kyushu Denki Seizo Kk 微弱電界に於ける無線中継方式
JP2008152463A (ja) * 2006-12-15 2008-07-03 Toshiba Tec Corp 無線通信装置
WO2013058277A1 (fr) * 2011-10-21 2013-04-25 オリンパスメディカルシステムズ株式会社 Unité de connexion d'antenne, récepteur, dispositif de correction de la force du signal reçu, système de capsule endoscopique, procédé et programme de correction

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63292731A (ja) * 1987-05-23 1988-11-30 Kyushu Denki Seizo Kk 微弱電界に於ける無線中継方式
JP2008152463A (ja) * 2006-12-15 2008-07-03 Toshiba Tec Corp 無線通信装置
WO2013058277A1 (fr) * 2011-10-21 2013-04-25 オリンパスメディカルシステムズ株式会社 Unité de connexion d'antenne, récepteur, dispositif de correction de la force du signal reçu, système de capsule endoscopique, procédé et programme de correction

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