WO2004096024A1 - 無線型被検体内情報取得システム、被検体内導入装置および被検体外部装置 - Google Patents
無線型被検体内情報取得システム、被検体内導入装置および被検体外部装置 Download PDFInfo
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- WO2004096024A1 WO2004096024A1 PCT/JP2004/005721 JP2004005721W WO2004096024A1 WO 2004096024 A1 WO2004096024 A1 WO 2004096024A1 JP 2004005721 W JP2004005721 W JP 2004005721W WO 2004096024 A1 WO2004096024 A1 WO 2004096024A1
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- signal
- power supply
- control signal
- drive control
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Classifications
-
- 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
- A61B1/041—Capsule endoscopes for imaging
-
- 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
- A61B1/00002—Operational features of endoscopes
- A61B1/00011—Operational features of endoscopes characterised by signal transmission
- A61B1/00016—Operational features of endoscopes characterised by signal transmission using wireless means
-
- 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
- A61B1/00002—Operational features of endoscopes
- A61B1/00025—Operational features of endoscopes characterised by power management
- A61B1/00027—Operational features of endoscopes characterised by power management characterised by power supply
- A61B1/00029—Operational features of endoscopes characterised by power management characterised by power supply externally powered, e.g. wireless
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0031—Implanted circuitry
-
- 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
- A61B1/00002—Operational features of endoscopes
- A61B1/00025—Operational features of endoscopes characterised by power management
- A61B1/00036—Means for power saving, e.g. sleeping mode
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/02—Operational features
- A61B2560/0204—Operational features of power management
- A61B2560/0214—Operational features of power management of power generation or supply
- A61B2560/0219—Operational features of power management of power generation or supply of externally powered implanted units
Definitions
- the present invention relates to a radio-type in-subject information acquisition system, a radio-type in-subject information acquisition system, an intra-subject introduction device, and a subject external device.
- pills swallowable capsule endoscopes
- This pill is provided with an imaging function and a wireless function. After swallowing from the patient's mouth for observation (examination), the pill moves along the peristaltic movement of ⁇ inside the stomach, small intestine, etc., during the observation period until natural excretion from the human body. This is a mechanism for sequentially capturing images.
- the image data captured inside the body by the pill is sequentially transmitted to the outside by wireless communication and stored in the memory.
- the patient can freely move during the observation period after swallowing the pill until it is discharged.
- a doctor or nurse can display an image of the organ on the display based on the image data stored in the memory to make a diagnosis.
- this type of pill is placed inside the living body of the subject, so a battery is mounted inside the pill and a battery supply system that supplies power internally using the battery, or a pill inside the pill from outside the body There is a power transmission system that supplies power to the inside by transmitting power to the power transmission system.
- a power receiving antenna is provided inside the power transmitting system, and the radio capsule (equivalent to a pill) placed in the living body is operated through the power receiving antenna into the radio capsule in order to operate for a long time. Equipped to send (Refer to Japanese Patent Application Laid-Open No. 2001-2312016).
- An object of the present invention is to realize power supply to a device (intra-subject introduction device) to be introduced into a subject like a pill and to control a function desired by an operator of the intra-subject introduction device.
- An object of the present invention is to provide an easy-to-use wireless type subject / information acquisition system, a device for introducing into a subject, and an external device for a subject. Disclosure of the invention
- a wireless type in-vivo information acquiring system includes an intra-subject introduction device to be introduced into a subject and an external device arranged outside the subject.
- a wireless type subject / information acquisition system having an external device, wherein the external device sends out a power supply signal for supplying power to the subject / introduction device, and the power source Power supply signal transmitting means for wirelessly supplying the power supply signal transmitted from the means to the intra-subject introduction apparatus; and the power supply signal transmitted from the power supply means.
- Control signal superimposing means for superimposing a drive control signal for controlling the driving of the means, wherein the in-vivo introducing device has a function of executing a predetermined function for acquiring information inside the subject.
- Execution means and Control signal detection means for detecting the drive control signal superimposed on the power supply signal supplied from the external device, and controlling drive of the function execution means based on the drive control signal. It is characterized by.
- the external device is a function execution unit.
- Control information input means for transmitting the drive control signal when control information relating to the control content of the drive is input is further provided.
- the in-subject introduction device separates the drive control signal from the power supply signal supplied from the external device. And separating means for supplying the drive control signal to the control signal detecting means.
- the in-vivo introducing device includes the power supply signal after the drive control signal is separated by the separation unit. Characterized by further comprising a power storage means for supplying the power.
- the power supply signal has a first frequency band
- the drive control signal is the first frequency band.
- the drive control signal is the first frequency band
- the function executing means is a sensor means for acquiring in-subject information unique to a test site in the subject. It is characterized by the following.
- the function execution unit includes an imaging unit that captures an image of a test site in the subject;
- the control information input to the information input means includes information about the number of frames to be imaged per predetermined time by the imaging means, and the drive control signal sent from the control information input means is It is characterized by including a signal for controlling the number of frames to be imaged per time.
- the function executing means may include:
- the control information input to the control information input means includes information on a time at which the illumination means emits light
- the drive control signal transmitted from the control information input means includes: It includes a signal for controlling a light emission time of the lighting means.
- the wireless type in-vivo information acquiring system is the system according to the above-mentioned invention, wherein the system control device is provided in the in-vivo introducing apparatus that controls a power supply state for driving the function execution unit.
- the control information input to the system control means includes information on power supplied from the system control means to the function execution means, and is transmitted from the system control means.
- the driving control signal includes a signal for controlling power supply of the system control means.
- the intra-subject introduction apparatus includes: a function execution unit that executes a predetermined function for “acquiring predetermined information inside the subject that is set in advance”; Power supply signal receiving means for receiving a power supply signal wirelessly transmitted from outside as power for driving the function execution means, on which a drive control signal for controlling driving is superimposed; and receiving the power supply signal Control signal detection means for detecting the drive control signal from the power supply signal received by the means, and controlling the drive of the function execution means based on the drive control signal.
- the drive control signal is separated from the power supply signal received by the power supply signal receiving unit, and the drive control signal is converted to the control signal. It is characterized by further comprising a separating means for supplying to the detecting means.
- the intra-subject introduction apparatus in the above invention, further comprises a power storage unit to which the power supply signal after the drive control signal is separated by the separation means is supplied. It is characterized.
- the power supply signal has a first frequency band
- the drive control signal is A second frequency band different from the first frequency band
- the separating unit separates the signal of the first frequency band and the signal of the second frequency band to provide the power supply. And the drive control signal.
- the function execution unit is a sensor unit that acquires in-subject information specific to a test site in the subject.
- the function performing means includes an imaging means for capturing an image of a test site in the subject, and the control information input means.
- the control information input to the control unit includes information on the number of frames to be imaged by the imaging unit per predetermined time, and the drive control signal transmitted from the control information input unit includes: And a signal for controlling the number of frames to be imaged.
- the function executing means includes an illuminating means for emitting illumination light for illuminating at least a portion to be examined in the subject;
- the control information input to the information input means includes information on a time at which the lighting means emits light, and the drive control signal transmitted from the control information input means includes a signal for controlling a light emission time of the lighting means. It is characterized by including.
- the intra-subject introduction apparatus is the system according to the above invention, wherein the system control is provided in the intra-subject introduction apparatus that controls a power supply state for driving the function execution unit.
- the control information input to the system control means includes information on power supplied by the system control means to the function executing means, and the control information transmitted from the system control means is provided.
- the drive control signal includes a signal for controlling power supply of the system control means.
- the subject external device sends out a power supply signal for use as drive power for the intra-subject introduction device that executes a predetermined function introduced into a part of the subject.
- Control signal superimposing means for superimposing, on the power supply signal transmitted from the power source means, a drive control signal for controlling the driving of a predetermined function of the body-insertable device.
- the power supply signal transmitted from the power source means and superposed by the control signal superimposing means on which the drive control signal is superimposed is supplied to the intra-subject introduction device introduced into the subject.
- the subject external device is the control device according to the above invention, wherein the control information input unit is configured to transmit the drive control signal by inputting control information relating to the control content for driving the function execution unit. Is further provided.
- the power supply signal has a first frequency band, and the drive control signal is different from the first frequency band. It is characterized by having two frequency bands.
- FIG. 1 is a system conceptual diagram of a capsule endoscope system which is an example of a wireless subject / information acquisition system according to the present invention.
- FIG. 2 is a block diagram showing the internal configuration of the pill according to the present embodiment.
- FIG. 3 is a block diagram showing an internal configuration of the receiver according to the present embodiment.
- FIG. 4 is an external view showing the overall configuration of the receiver according to the present embodiment.
- FIG. 5 is a diagram illustrating a power feeding antenna of the receiver according to the present embodiment.
- FIG. 6 is a block diagram of a power supply unit for supplying power to each unit in the receiver according to the present embodiment.
- FIG. 1 is a system conceptual diagram of a forcepsell type endoscope system which is an example of a wireless type subject information acquisition system according to the present invention.
- This capsule endoscope system wirelessly exchanges various information between the pill (intra-subject introduction device) 1 that is introduced into the living body, which is the subject BDY, and the pill 1 that is placed outside the living body.
- a receiver 2 as an external device for communication.
- FIG. 2 is a block diagram showing an internal configuration of the pill according to the present embodiment.
- pill 1 is an intra-subject introduction device to be introduced into the subject BDY.
- the pill 1 is an LED 111 as a light emitting element that emits illumination light for illuminating a portion to be inspected of the subject BDY (illumination means, illumination means), and an LED drive signal for driving the LED 11.
- the LED drive circuit 12 to send out, the CCD 13 (function execution means, sensor means, imaging means) which captures the image of the subject obtained by the illumination light from the LED 11 being reflected from the subject, and the CCD 13 Drive circuit 14 for driving the CCD, an RF transmission unit 15 (function executing means) that modulates an imaging signal output from the CCD 13 to an RF signal, and outputs the RF transmission unit 15
- An RF antenna 16 as a transmitting antenna for wirelessly transmitting an RF signal is provided.
- the CCD 13 is usually driven at an imaging rate of about 2 fps, and the LED 11 repeats blinking at least including the imaging period of the CCD 13 or is always lit during the imaging state. Has become.
- a power receiving antenna 17 for receiving a radio signal transmitted from the receiver 2 and a separation circuit 18 (separating means) for separating a power supply signal from a signal received by the power receiving antenna 17 are provided.
- a power regeneration circuit 19 for regenerating electric power from the power supply signal
- a level judging circuit 20 for judging the level of the regenerated electric power and sending the judgment result to the RF transmission unit 15,
- a booster circuit 21 for boosting the boosted power; a capacitor 22 (storage means) for storing the boosted power; and the power stored in the capacitor 22 for each of the pills 1 such as the CCD 13 and the LED 11.
- a system control circuit 23 (function execution means, system control means) for controlling the unit is provided. The above LED 11, CCD 13, RF transmission unit 15, system controller The predetermined function of the pill 1 is executed by the roll circuit 23.
- the CCD 13 sends the subject image captured by emitting the illumination light from the LED 11 as a light emitting element to the RF transmission unit 15 as an imaging signal which is an in-subject information signal.
- the RF transmission kits 1 and 15 modulate the in-subject information signal transmitted from the CCD 13 and wirelessly transmit the signal to the outside of the pill 1 via the RF antenna 16 which is a transmission antenna.
- an ADC analog-to-digital converter
- a digital signal obtained by AD-converting the in-subject information signal may be modulated and wirelessly transmitted.
- the CCD 13 is an example of sensor means for acquiring in-vivo information, and further, is an example of imaging means for imaging in-vivo information.
- another imaging device such as a CMOS sensor may be used.
- some sensor means for acquiring other biological information such as temperature information and pH information may be used instead of the image.
- the power receiving antenna 17 includes a single coil member, and receives a power supply radio wave transmitted from the receiver 2 described later. After the power receiving antenna 17 receives the power supply radio wave, the power supply signal is separated from the power supply radio wave by the separation circuit 18, and the power supply signal is reproduced by the power regeneration circuit 19 as electric power. It is stored as electric power.
- the capacity of the battery 22 is such that the power cannot be received (relative direction of each antenna) for 10 minutes in accordance with the direction of the power receiving antenna 17 with respect to each power feeding antenna on the receiver 2 described later. Even if power supply is interrupted for a while, the capacity is secured so as not to impair the function of pill 1. It is to be noted that, before introducing the pill 1 into the subject BDY, the battery 22 is fully charged, thereby further suppressing the trouble when the power supply is interrupted.
- the system control circuit 23 controls the driving of each unit such as the LED 11 and the CCD 13 using the power stored in the capacitor 22 and controls the power supply state for driving each unit.
- the level determination signal sent to the unit 15 is wirelessly transmitted outside the pill 1 in the same manner as the above-mentioned in-subject information signal.
- the timing of wireless transmission of the level determination signal by the RF transmission unit 15 is set to be outside the wireless transmission period of the in-subject information signal.
- the amount of power consumption can be suppressed, and the consumption of power stored in battery 22 can be suppressed. If the subject ⁇ information is intermittently wirelessly transmitted, the effect of suppressing power consumption can be further obtained.
- a control information signal for controlling various functions of the pill 1 may be superimposed on the power supply signal by the receiver 2 and transmitted. Therefore, there is provided a control information detection circuit 24 (control signal detection circuit) to which various control information signals superimposed on the power supply signal, which are separated by the separation circuit 18 described above, are input. ing.
- the control information detection circuit 24 controls each cut in the pill 1 in accordance with the input control information signal. That is, the control information detection circuit 24 detects a control information signal superimposed on the power supply signal supplied from the receiver 2, and based on the control information signal, the LED 11 and the CCD 1 described above. 3, RF transmission cutout 15, and control of system control circuit 23 will be controlled.
- the receiver 2 will be described.
- FIG. 3 is a block diagram showing the internal configuration of the receiver according to the present embodiment
- FIG. 4 is an external view showing the overall configuration of the receiver according to the present embodiment
- FIG. FIG. 6 is a block diagram showing a power supply unit for supplying power to each unit in the receiver according to the present embodiment.
- the receiver 2 is composed of an antenna unit 31 for communicating with the pill 1 and a receiver main unit 32 for processing information to communicate with the pill 1 via the antenna unit 31. Be composed. In the present embodiment, a case where the receiver 2 is applied to the best is shown as an example.
- the antenna section 31 has a plurality of receiving antennas A 1 to An and a plurality of feeding antennas B 1 to B m (feeding signal transmitting means). Where n and m are It is a natural number.
- Each of the antennas of the antenna unit 31 is arranged at a predetermined position on the outer surface when the antenna is attached to a living body which is the subject BDY.
- the antenna section should be placed over the chest, abdomen, or chest to abdomen of the living body. 3 so that 1 is arranged.
- the receiver main body 32 is provided with an oscillator 41 (power source means) for generating a power supply signal. Further, a control information input unit 42 (control information input means) for inputting control information for the operator to control the function of the pill 1 is provided. Some information can be input from the control information input unit 42.
- the imaging rate of the CCD 13, that is, the frame number change information which is information for changing the number of imaging frames during a predetermined period of time LED, and the LED lighting for changing the timing of turning on and off the LED 11 By controlling the time information and the system control circuit 23, an active mode in which power is supplied to each unit to execute acquisition of in-subject information, and a mode for each unit Switching between standby mode where power is controlled and postponement of acquisition of in-subject information is delayed.
- Original ONZO FF information is input from the control information input unit 42.
- a superimposing circuit 43 (control signal superimposing means) is provided downstream of the oscillator 41.
- the control information input from the control information input unit 42 is superimposed on the power supply signal output from the oscillator 41.
- the power supply signal on which the control information is superimposed is amplified by an amplification circuit 44 provided at a stage subsequent to the superimposition circuit 43, and then output to the switching circuit 45.
- the amplification factor of the power supply signal by the width circuit 44 can be changed, and the change process will be described later.
- the power supply signal input to the switching circuit 45 is wirelessly transmitted from the power supply antenna of the antenna unit 31.
- the control information input unit 42 when an instruction to change the imaging rate of the CCD 13 from the first imaging rate key to the second imaging rate is input from the control information input unit 42. I do.
- the frame number change information signal transmitted from the control information input unit 42 is superimposed on the power supply signal by the superposition circuit 43 and input to the amplification circuit 34. Further, after being amplified at a predetermined amplification rate by the amplifier circuit 44, the signal is transmitted to an optimal power supply antenna among the power supply antennas Bl to Bm by a switching circuit 35, and the power supply antenna Is transmitted wirelessly.
- the power supply signal wirelessly transmitted in this manner is received by the power receiving antenna 17 of the pill 1 as described above. Then, a frame number change information signal as a control information signal separated from the power supply signal by the separation circuit 18 is input to the control information detection circuit 24.
- the frequency band of the control information signal is different from that of the power supply signal, and the frequency band of the control information signal is changed according to the control content.
- a multiplexed signal can be wirelessly transmitted from the receiver 2, and the input signal can be separated by the separation circuit 18 based on this frequency band even in the pill 1.
- the information detection circuit 24 can detect the content of the control information.
- the control information detection circuit 24 to which the control information signal is input detects that it is the frame number change information signal, and performs the control (from the first imaging rate to the second imaging rate). ),
- the CCD drive circuit 14 is controlled so as to drive the CCD 13 at the second imaging rate.
- the LED 11 is blinking in synchronization with the imaging period of the CCD 13, it is changed by the above-mentioned control contents (change from the first imaging rate to the second imaging rate).
- the lighting period is automatically changed from the first lighting period, which is the current lighting period, to the second lighting period suitable for the second imaging rate according to the imaging rate of the CCD 13.
- a control signal may be sent from the controller information detecting circuit 24 to the LED horse driving circuit 12.
- control information detected by the control information detection circuit 24 is used in an active mode in which power is supplied to each unit and information in the subject is acquired. 4 005721
- the system control circuit 2 3 It sends a control signal to and controls it to switch the mode.
- the same control information is superimposed on the power supply signal for at least a predetermined time unless new information is input from the control information input unit 42.
- the pill 1 receive control information even if there is a period during which the power cannot be received for a short time.
- the function of the pill 1 after being introduced into the subject BDY can be externally controlled by radio, so that a large amount of in-subject information on unnecessary parts can be acquired or carelessly acquired. The power cannot be consumed.
- the above-mentioned antenna section 31 is provided in advance on clothing such as a detachable vest 4 as shown in FIG.
- clothing such as a detachable vest 4 as shown in FIG.
- simply putting the test 4 on the subject BDY causes each antenna to be positioned at the most appropriate position with respect to the test subject: BDY. It can be easily arranged.
- the antenna section 31 is arranged on the front surface of the best 4, but it may be arranged on the rear surface in the same manner. Accordingly, each antenna may be detachable from the antenna unit 31 so that the arrangement of the antennas can be appropriately changed according to the purpose of the inspection (particularly, a part to be observed).
- the best 4 is designed so that external electromagnetic waves are not received by the antenna of the antenna section 31, that is, only signals from the subject BDY are received by the antenna.
- a shielding material (not shown) is provided on the front side.
- the feeding antenna B1 is composed of two coil members having different directivities and arranged so that the direction of a magnetic field generated by being energized forms an angle of 90 °.
- the power feeding antennas b11 and b12 are provided to solve the problem of insufficient power feeding depending on the direction of the power receiving antenna 17 on the pill 1 side.
- the power supply antenna B2 also includes power supply antennas b21 and b22, which are two coil members, and the same applies to the power supply antenna B2 and thereafter.
- the feeding antenna Bm is provided with the feeding antennas bml and bm2.
- the power supply antennas b11 and b12 and the power supply antennas b21 and b21 which receive the power supply signals and emit power supply radio waves at predetermined time intervals, are used.
- b 22, ⁇ ⁇ ⁇ , the power supply antennas bml and bm2 are sequentially switched.
- each feeding antenna is configured as two coil members so as to have directivity in two directions.
- the other coil member has the same magnetic field direction as that of the other two coil members. It is also possible to provide three directions of directivity by being provided so as to be orthogonal to.
- the receiving antennas B 1 to B m receive the above-mentioned in-subject information signal and the level determination signal wirelessly transmitted from the pinore 1 power, respectively, so that all the received signals are respectively input to the RF receiving unit 46.
- the RF receiving unit 46 is configured to demodulate the input in-subject information signal and level determination signal.
- An image processing unit 47 and a power supply level detection circuit 48 are connected to a stage subsequent to the RF receiving unit 46.
- the former image processing unit 47 receives the in-subject information signal demodulated by the RF receiving unit 46, and the latter receives the power level detection signal from the RF receiving unit 46 to the power level detection circuit 48. Is done.
- a storage unit 49 such as a built-in hard disk drive or a portable compact flash (registered trademark) memory is connected to a stage subsequent to the image processing unit 47, and stores the image signal described above. become.
- the power supply level detection circuit 48 switches the power supply antennas sequentially as described above, and based on the level determination signals sequentially generated and transmitted on the pill 1 side, respectively.
- the state of power supply to the battery 22 of the pill 1 by the power supply radio wave transmitted from each power supply antenna is to be detected.
- the power supply level detection circuit 48 detects each level & m level to be supplied by being wirelessly transmitted from each power supply antenna and received by the power receiving antenna 17 of the pill 1.
- the power / directivity detection circuit 50 provided at the subsequent stage of the power supply level detection circuit 48 determines the amplification factor of the power supply electric wave by the amplification circuit 44 based on each detection result of the power supply level detection circuit 48.
- the switching circuit 45 sends a control signal to each of the power supply antennas so that the most efficient power supply antenna can be selected.
- the amplifying circuit 44 amplifies the power supply radio wave to an appropriate predetermined level set in advance according to the control signal from the power / directivity detection circuit 50. Perform the amplification operation.
- the switching circuit 45 performs a switching operation on a power supply antenna capable of supplying power most efficiently in response to a control signal from the power / directivity detection circuit 50. In this case, for example, if the signal strength of the power supply antenna b11 is higher than that of the power supply antenna b12 based on the detection result of the power supply level detection circuit 48, the power supply signal is supplied only from the power supply antenna b11.
- the switching circuit 45 may be controlled so as to output the signal.
- the power determination by the level determination circuit 20 of the pill 1 is set to be performed in five steps according to the magnitude of the power.
- the five stages are divided into 5: maximal, 4: large, 3: appropriate, 2: small, and 1: minute.
- the strength is determined by comparing each value with the power strength.
- the determination result of the level determination circuit 20 is "5" only when the signal is transmitted from the power supply antenna b11, and the determination result is "4" or less only when the signal is transmitted from another power supply antenna.
- the power / directivity detection circuit 50 sets the determination result of the level determination circuit 20 to "3".
- a control signal for setting the amplification factor to the amplification circuit 44 is sent to the amplification circuit 44, and a control signal for selecting the feeding antenna b 11 is sent to the switching circuit 45.
- the switching circuit 45 is controlled to sequentially switch each power supply antenna, and " The amplification circuit 44 is controlled so as to increase the amplification factor until a power feeding antenna that produces a determination result of 3 "is detected.
- the level of the determination result of the level determination circuit 20 is set to five for convenience, but is not necessarily limited to five or less or more.
- the receiver 2 is provided with a power supply unit 51 for supplying power to each unit.
- the power supply cut 51 is configured as shown in FIG.
- the power supply unit 51 is provided with a switching circuit 63 for selecting a power supply to be supplied with power from a plurality of power supplies.
- a main battery 61, its spare battery 62, and an AC power supply 64 are detachably connected to the switching circuit 63 as a plurality of power supplies 1.
- a remaining amount detection circuit 65 for detecting the remaining amount of the battery selected as the power supply from the electric power input through the switching circuit 63, and a notification of the detection result by the remaining amount detection circuit 65.
- a notification unit 66 such as an LED and a speaker is provided at a stage subsequent to the switching circuit 63.
- the remaining amount detection circuit 6.5 detects the remaining amount of the battery connected to the switching circuit 63. In response to detecting that the value approaches a predetermined value such as 0 (zero), or by constantly detecting the remaining amount of the battery, the remaining amount detection circuit 65 blinks the LED and outputs sound. For example, a signal is output to the notification unit 66 to notify the operator of the remaining battery level by the operation of the notification unit 66.
- the switching circuit 63 is selected in the order of priority of the AC power supply 64, the battery 61, and the battery 62.
- the remaining amount detection circuit 65 When the remaining amount of the battery is detected by the remaining amount detection circuit 65 to detect that the remaining amount of the battery has approached a predetermined value such as 0 (zero), this information is fed to the switching circuit 63 3. In this case, a switching operation may be performed so as to switch to the next priority battery or the like.
- each battery When the AC power supply 64 is connected, each battery may be charged simultaneously with power supply to each unit.
- the switching circuit 63 may be used to supply power preferentially from the AC power supply 64.
- the present embodiment it is possible to realize power supply to a device (intra-subject introduction device) to be introduced into a subject like a pill, and to provide an operator of the subject ⁇ introduction device with Desired functions can be controlled. As a result, usability can be improved.
- the present invention is not necessarily limited to this, and can be applied without departing from the gist of the present invention.
- the information inside the subject obtained by the intra-subject introduction device is not limited to the image of the test site, but a pH sensor can be installed in the pill to measure the pH value, It can be applied to all devices that measure the temperature and pressure in the gastrointestinal tract by providing a sensor pressure sensor.
- the wireless in-vivo information acquisition system, the in-vivo introduction device, and the in-vivo external device according to the present invention provide a forcepsell-type endoscope for acquiring an image in a subject and a use thereof. It is suitable for capsule endoscope systems.
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- Computer Networks & Wireless Communication (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Endoscopes (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2004800110788A CN100425195C (zh) | 2003-04-25 | 2004-04-21 | 无线型被检体内信息取得系统、被检体内导入装置及被检体外部装置 |
KR1020057020188A KR100889093B1 (ko) | 2003-04-25 | 2004-04-21 | 피검체 내 도입 장치, 피검체 외부 장치, 피검체 내 도입 장치 및 피검체 외부 장치를 갖는 무선형 피검체 내 정보 취득 시스템, 피검체 외부 장치를 포함하는 베스트 및 복수의 전력 공급 신호 송신 수단으로부터 하나의 전력 공급 신호 송신 수단을 선택하기 위한 방법 |
CA002523299A CA2523299C (en) | 2003-04-25 | 2004-04-21 | Radio-type in-subject information acquisition system, device for introduction into subject, and outside-subject device |
EP04728688A EP1618829A4 (en) | 2003-04-25 | 2004-04-21 | INFORMATION ACQUISITION SYSTEM FROM RADIO TYPE IN A PROBAND, DEVICE FOR INTRODUCTION TO A PROBAND AND EXTERNAL PROBING DEVICE |
JP2005505855A JP4383410B2 (ja) | 2003-04-25 | 2004-04-21 | 無線型被検体内情報取得システム、被検体内導入装置および被検体外部装置 |
AU2004233672A AU2004233672B2 (en) | 2003-04-25 | 2004-04-21 | Radio-type in-subject information acquisition system, device for introduction into subject, and outside-subject device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-122801 | 2003-04-25 | ||
JP2003122801 | 2003-04-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004096024A1 true WO2004096024A1 (ja) | 2004-11-11 |
Family
ID=33296614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/005721 WO2004096024A1 (ja) | 2003-04-25 | 2004-04-21 | 無線型被検体内情報取得システム、被検体内導入装置および被検体外部装置 |
Country Status (8)
Country | Link |
---|---|
US (2) | US7214182B2 (ja) |
EP (1) | EP1618829A4 (ja) |
JP (1) | JP4383410B2 (ja) |
KR (1) | KR100889093B1 (ja) |
CN (1) | CN100425195C (ja) |
AU (1) | AU2004233672B2 (ja) |
CA (1) | CA2523299C (ja) |
WO (1) | WO2004096024A1 (ja) |
Cited By (6)
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JP2007200080A (ja) * | 2006-01-27 | 2007-08-09 | Oki Electric Ind Co Ltd | データ伝送方法及びそれを用いたセンサシステム |
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JP2007325866A (ja) * | 2006-06-09 | 2007-12-20 | Olympus Corp | カプセル内視鏡システム |
JP2008289740A (ja) * | 2007-05-25 | 2008-12-04 | Sharp Corp | 生体情報管理システム、体外装置、体内装置、生体情報管理方法、生体情報管理プログラム、およびコンピュータ読み取り可能な記録媒体 |
WO2009028509A1 (ja) * | 2007-08-29 | 2009-03-05 | Olympus Medical Systems Corp. | 生体内画像取得装置および生体内画像取得システム |
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- 2004-04-21 CN CNB2004800110788A patent/CN100425195C/zh not_active Expired - Fee Related
- 2004-04-21 KR KR1020057020188A patent/KR100889093B1/ko not_active IP Right Cessation
- 2004-04-21 WO PCT/JP2004/005721 patent/WO2004096024A1/ja active Application Filing
- 2004-04-21 CA CA002523299A patent/CA2523299C/en not_active Expired - Fee Related
- 2004-04-21 JP JP2005505855A patent/JP4383410B2/ja not_active Expired - Fee Related
- 2004-04-21 AU AU2004233672A patent/AU2004233672B2/en not_active Ceased
- 2004-04-21 EP EP04728688A patent/EP1618829A4/en not_active Withdrawn
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2007
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007200080A (ja) * | 2006-01-27 | 2007-08-09 | Oki Electric Ind Co Ltd | データ伝送方法及びそれを用いたセンサシステム |
JP2007200079A (ja) * | 2006-01-27 | 2007-08-09 | Oki Electric Ind Co Ltd | センサシステム |
JP2007200081A (ja) * | 2006-01-27 | 2007-08-09 | Oki Electric Ind Co Ltd | データ伝送方法及びそれを用いたセンサシステム |
JP2007325866A (ja) * | 2006-06-09 | 2007-12-20 | Olympus Corp | カプセル内視鏡システム |
JP2008289740A (ja) * | 2007-05-25 | 2008-12-04 | Sharp Corp | 生体情報管理システム、体外装置、体内装置、生体情報管理方法、生体情報管理プログラム、およびコンピュータ読み取り可能な記録媒体 |
WO2009028509A1 (ja) * | 2007-08-29 | 2009-03-05 | Olympus Medical Systems Corp. | 生体内画像取得装置および生体内画像取得システム |
JP2009055940A (ja) * | 2007-08-29 | 2009-03-19 | Olympus Medical Systems Corp | 生体内画像取得装置および生体内画像取得システム |
US8622892B2 (en) | 2007-08-29 | 2014-01-07 | Olympus Medical Systems Corp. | In-vivo image acquiring apparatus and in-vivo image acquiring system |
Also Published As
Publication number | Publication date |
---|---|
CA2523299A1 (en) | 2004-11-11 |
CN100425195C (zh) | 2008-10-15 |
US7214182B2 (en) | 2007-05-08 |
AU2004233672A1 (en) | 2004-11-11 |
KR100889093B1 (ko) | 2009-03-17 |
US20070185382A1 (en) | 2007-08-09 |
JPWO2004096024A1 (ja) | 2006-07-13 |
EP1618829A4 (en) | 2010-07-07 |
EP1618829A1 (en) | 2006-01-25 |
AU2004233672B2 (en) | 2007-08-16 |
CN1777389A (zh) | 2006-05-24 |
JP4383410B2 (ja) | 2009-12-16 |
CA2523299C (en) | 2009-04-07 |
US20040215083A1 (en) | 2004-10-28 |
US8038601B2 (en) | 2011-10-18 |
KR20060003052A (ko) | 2006-01-09 |
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