US20080238869A1 - Capsular medical apparatus - Google Patents
Capsular medical apparatus Download PDFInfo
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- US20080238869A1 US20080238869A1 US12/057,094 US5709408A US2008238869A1 US 20080238869 A1 US20080238869 A1 US 20080238869A1 US 5709408 A US5709408 A US 5709408A US 2008238869 A1 US2008238869 A1 US 2008238869A1
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- displayed
- display device
- living body
- display apparatus
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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
- 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
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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
- A61B1/00002—Operational features of endoscopes
- A61B1/0002—Operational features of endoscopes provided with data storages
- A61B1/00022—Operational features of endoscopes provided with data storages removable
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/07—Endoradiosondes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/555—Constructional details for picking-up images in sites, inaccessible due to their dimensions or hazardous conditions, e.g. endoscopes or borescopes
Definitions
- the present invention relates to a capsular medical apparatus for obtaining living body information.
- U.S. Pat. No. 5,604,531 discloses a potable storage unit and a stationary storage unit.
- a capsular medical apparatus comprises a capsule which can be swallowed or inserted in the body, a recording device which receives living body information transmitted from the capsule and which records the received information, and a display device of the living body information.
- the capsular medical apparatus further comprises attaching/detaching means which connects and disconnects the recording device and the display device, detecting means which detects the connection between the recording device and the display device, and transfer means which transfers the living body information to the display device from the recording device.
- the operation or the like is checked by connecting the display device upon starting the apparatus or the like. When the operation check or the like is unnecessary, the display device is detached and thus the load of the patient is reduced.
- FIGS. 1 to 7 relate to a first embodiment of the present invention
- FIG. 1 is a diagram showing the structure of a capsular medical apparatus
- FIG. 2 is a flowchart showing the flow for adding time information to image data received by a recording device and recording the information
- FIG. 3 is a diagram showing an image format additionally having a time stamp on the received image
- FIG. 4 is a diagram showing a display example of the image additionally having the time stamp on the display device
- FIG. 5 is a diagram showing a display example of an image including contents of parameter setting upon displaying the receiving strength at a designated time interval
- FIG. 6 is a diagram showing a display example of an image for corresponding examination by clicking a tab in a state in which a plurality of examinations are opened
- FIG. 7 is a diagram showing a display example of an image displayed at the corresponding piece interval by selecting the number of divisions
- FIG. 8 is a diagram showing the structure of a capsular medical apparatus according to a second embodiment of the present invention.
- FIG. 9 is a diagram showing the structure of a capsule endoscope apparatus according to a third embodiment of the present invention.
- FIGS. 1 to 7 A first embodiment of the present invention will be described with reference to FIGS. 1 to 7 .
- a capsular medical apparatus 1 comprises: a capsular in-body unit 3 which is inserted in the body by swallowing or inserting operation or the like and which picks up an image (hereinafter, abbreviated to a capsule); a recording device 4 which is arranged outside the body and receives, by radio waves, living body information transmitted from a capsule 3 and which records the data; and a display device 5 which is connected detachably (attached and detached) to the recording device 4 and which displays the living body information.
- the recording device 4 and the display device 5 form an extracorporeal device 6 .
- the recording device 4 has small size and light weight for recording (storing) image data transmitted from the capsule 3 so as to be attached to a white cloth or jacket of a patient. Upon displaying the image so as to check the operation or the like, the recording device 4 is connected to the display device 5 having a function for displaying the image on the recording device 4 by a USB cable 26 .
- an illuminating and observing window 11 that is semi-spherical and contains a transparent member is formed.
- an objective optical system 12 is attached to a lens frame facing the center portion of the illuminating and observing window 11 , and four white LEDs 13 or the like are respectively arranged as light emitting elements forming illuminating means at four positions or the like around the objective optical system 12 .
- a CMOS sensor 14 or the like is arranged, as an image sensor for obtaining image information on the living body, at the position for forming images in the objective optical system 12 .
- the CMOS sensor 14 comprises, on the back surface side, a signal processing circuit 15 which generates the image data (e.g., JPEG data) that is obtained by performing the signal processing of the CMOS sensor 14 and compressing the processed data; a communication circuit 16 for radio communication; and a plurality of button batteries 17 which feed the power for operation to the CMOS sensor 14 and the signal processing circuit 15 .
- image data e.g., JPEG data
- an antenna 18 which is connected to the communication circuit 16 and which irradiates and receives the electric waves for radio communication with (antennas 21 a to 21 c ) of the extracorporeal recording device 4 , is provided. Also at the rear end adjacent to the plurality of button batteries 17 , a switch 19 , which performs the on/off operation of the power supply, is provided.
- the CMOS sensor 14 , the signal processing circuit 15 , and the communication circuit 16 are electrically connected by a flexible substrate 20 . Further, the flexible substrate 20 is connected to the plurality of button batteries 17 via the switch 19 .
- the extracorporeal recording device 4 comprises: an antenna unit 22 to which the plurality of antennas 21 a to 21 c are connected; a recording processing block 24 that is accommodated in a casing 23 to which the antenna unit 22 is detachably connected and that records image data; and a power supply block 25 which supplies power to the recording processing block 24 and the like.
- the recording device 4 is detachably connected to the display device 5 by the USB cable 26 (as data transfer means for transferring data to the display device 5 from the recording device 4 ).
- the USB cable 26 as data transfer means for transferring data to the display device 5 from the recording device 4 .
- the display device 5 performs the decompressing processing of the transferred image data, displays the processed data on the display screen, and simultaneously edits and displays a plurality of images.
- a conductive terminal is provided in addition to one terminal on the recording device 4 side in the USB cable 26 and the other terminal on the display device 5 .
- the USB cable 26 is freely detachably connected to the conductive terminal of the USB connector of the recording device 4 and the conductive terminal of the USB connector of the display device 5 .
- the antenna unit 22 has an exterior case containing a resin casing 22 a whose inner or external surface is subjected to the shielding processing such as metal plating.
- the antenna unit 22 comprises: an antenna selector 32 which switches the antennas 21 a to 21 c connected thereto by a coaxial cable 31 ; a high-frequency circuit (abbreviated to an RF circuit) 33 which communicates data by radio waves and which is connected to the antennas 21 a to 21 c via the antenna selector 32 ; a base band circuit (abbreviated to a BB circuit) 34 which generates the base band signal that is demodulated by the RF circuit 33 ; and a connector 35 which is detachably connected to the recording device 4 .
- an antenna selector 32 which switches the antennas 21 a to 21 c connected thereto by a coaxial cable 31 ; a high-frequency circuit (abbreviated to an RF circuit) 33 which communicates data by radio waves and which is connected to the antennas 21 a to 21 c via the
- a portion for handing the high-frequency signal mainly including the RF circuit 33 , is sealed in the antenna unit 22 .
- a connecting portion to the recording device 4 in the connector 35 handles only the base band signal (and antenna switching signal). Thus, the reliability and the stability of the operation are improved.
- the casing 23 of the recording device 4 is made of metal or (shielding processed) resin, and accommodates a power supply block 25 and a recording processing block 24 .
- the power supply block 25 comprises: batteries 36 a and 36 b arranged in parallel therewith; switches 37 a and 37 b which are serially connected to the batteries 36 a and 36 b ; a power supply monitoring circuit 38 which monitors voltages of the batteries 36 a and 36 b and enables one of the switches 37 a and 37 b ; and a DC/DC converter 39 which is connected to the ON-operation battery and converts the voltage into DC power of a voltage value necessary for the recording processing block 24 .
- the DC current of the DC/DC converter 39 is supplied to the antenna unit 22 side via the connector 35 as well as the recording processing block 24 .
- the recording processing block 24 comprises: a CPU 40 which controls the recording device 4 ; a CPU 41 which mainly controls the antenna unit 22 ; a real-time clock (abbreviated to an RTC) which is connected to both the CPUs 40 and 41 , manages the time, and outputs information on the date upon receiving the image; an address selector 43 which is connected to both the CPUs 40 and 41 and is connected to the antenna selector 32 ; a memory (SRAM) 44 which is connected to the address selector 43 and temporarily stores data from the selected antenna selector 32 ; a PC card controller 46 which is connected to both the CPUs 40 and 41 and controls the operation for writing the data to a PC card memory 45 ; a PCMCIA slot 47 which is connected to the PC card controller 46 ; the PC card memory 45 which is detachably connected to the PCMCIA slot 47 and stores received and demodulated image data (JPEG data); a USB driver 48 which performs the processing for transferring data to the display device 5 via the USB cable 26 when the display device 5 is connected to
- the CPU 40 determines whether or not it is connected to the display device 5 based on the level of (the signal of) the voltage of the voltage detecting circuit 49 .
- the CPU 40 transmits a control signal for opening or closing a gate to a clock gate 48 a provided for the USB driver 48 , and controls the operation of the USB driver 48 .
- the clock gate 48 a is opened, thus to supply a clock CLK to the USB driver 48 . Further, the USB driver 48 is set to the operating state. Then, the CPU 40 records the image data received by the antenna unit 22 to the PC card memory 45 and transmits the recorded data to the display device 5 side via the USB driver 48 .
- the CPU 40 closes the clock gate 48 a and sets a standby mode in which the clock CLK is not supplied to the USB driver 48 and controls the operation for reducing the power consumption by the USB driver 48 .
- the CPU 40 records the data received by the antenna unit 22 to the PC card memory 45 .
- the recording device 4 and the display device 5 are independently formed and the recording device 4 is detachable to the display device 5 by the USB cable 26 as transfer means for transferring the data.
- the recording device 4 is used to handle the capsule 3 .
- the capsule 3 is used by connecting the recording device 4 and the display device 5 . Consequently, the load of the patient is reduced and the operability is ensured.
- the recording device 4 is operated in different operating modes depending on the presence or absence of the connection at the USB cable 26 .
- FIG. 3 shows an image format additionally having the time data with the image data.
- the display device 5 comprises: a USE receiver 51 which is connected to the USE driver 48 in the recording device 4 by the USE cable 26 , and receives the JPEG data as the image data transmitted from the USE driver 48 ; a CPU 52 which is connected to the USE receiver 51 via a bus and controls the operation of the display device 5 and performs the decompression processing of the image data; a memory (specifically, SDRAM) 53 which is connected to the bus, temporarily stores the image data, and is used as a work area of the CPU 52 ; a video signal generating circuit 54 which is connected to the bus, and performs the processing for converting a video signal (e.g., RGB video signal) for displaying the image of the image data subjected to the decompression processing by the CPU 52 ; a monitor 55 which is connected to an output terminal of the video signal generating circuit 54 and displays the corresponding image by inputting the RGB video signal or the like as the video signal; and a voltage generating circuit 56 which generates the voltage for detecting whether or not the recording
- the recording device 4 transmits, to the display device 5 , the image data with the time stamp additionally having the time data.
- the display device 5 decompresses the JPEG data and displays the received time at the portion on the bottom of the image as shown in FIG. 4 .
- the recording device 4 stores, in the PC card memory 45 , the image data transmitted from the capsule 3 as the image data with the time stamp additionally having the received time.
- the display device 5 is detachable to the recording device 4 , and the recording device 4 detects whether or not the display device 5 is connected thereto.
- the image data with the time stamp is stored in the PC card memory 45 and is transmitted to the display device 5 , thus to check in realtime the image by displaying the image on the monitor 55 of the display device 5 .
- the USB cable 26 is detached from the recording device 4 , and thus the recording device 4 is detached from the display device 5 .
- the USE cable 26 for connection to the display device 5 is not connected to the recording device 4 and therefore the load of the patient is reduced. The operability (easy use) is improved.
- the recording device 4 Upon examining the body by using the capsule 3 , when the operation of the capsule 3 is checked, the recording device 4 is connected to the display device 5 by the USB cable 26 as shown in FIG. 1 , and the power of the recording device 4 and the display device 5 is turned on as shown in step S 1 in FIG. 1 , and the power of the capsule 3 is turned on. In this case, the recording device 4 is attached to a white cloth or the like of the patient.
- step S 2 the CPU 40 of the recording device 4 determines whether or not the display device 5 is connected to the CPU 40 (by the voltage detecting signal from the voltage detecting circuit 49 ). If the CPU 40 determines that the display device 5 is connected to the recording device 4 , in step S 3 , the CPU 40 opens the clock gate 48 a of the USB driver 48 , and the clock CLK is supplied to the USB driver 48 to (reset the standby state) and set the operating state.
- step S 4 when the CPU 40 receives the image data transmitted from the capsule 3 , the CPU 40 adds the time data of the RTC 42 to the image data so as to form the image data additionally having the time stamp (as shown in FIG. 3 ) and stores the image data in the PC card memory 45 in the recording device 4 . Further, the CPU 40 transmits the image data additionally having the time stamp to the display device 5 via the USB cable 26 .
- step S 5 the display device 5 displays the image to which the receiving time is superimposed.
- the display device 5 compresses the image additionally having the transmitted time stamp, therefore, the CPU 52 in the display device 5 decompresses the data, and temporarily stores the decompressed data in the memory (SDRAM) 53 .
- the video signal generating circuit 54 transmits the decompressed image data, converts the image data into the video signal, and displays the image with the superimposed receiving time on the display screen of the monitor 55 as shown in FIG. 4 .
- the processing sequence returns to step S 2 .
- the medical staff can check the picked-up image by the capsule 3 in realtime, and can know the obtaining time of the image.
- the patient swallows the capsule 3 and the medical staff can check the image picked-up by the capsule 3 in this state and can know the obtaining time of the time.
- the USB cable 26 is detached from the recording device 4 and the load of the patient is reduced.
- step S 6 when the CPU 40 of the recording device 4 determines in step S 2 that the display device 5 is not connected, in step S 6 , the CPU 40 closes the clock gate 48 a of the USB driver 48 and the standby mode is set to prevent the clock CLK from being supplied to the USB driver 48 .
- step S 7 the CPU 40 receives the image data (specifically, JPEG data) transmitted from the capsule 3 . Then, the CPU 40 adds the time data of the RTC 42 to the image data, set the image data additionally having the time stamp (as shown in FIG. 3 ), and stores the image data to the PC card memory 45 in the recording device 4 . The processing sequence returns to step S 2 .
- the image data specifically, JPEG data
- the CPU 40 adds the time data of the RTC 42 to the image data, set the image data additionally having the time stamp (as shown in FIG. 3 ), and stores the image data to the PC card memory 45 in the recording device 4 .
- the processing sequence returns to step S 2 .
- the USB cable 26 is not connected to the patient by detaching, from the recording device 4 , the USB cable 26 for connecting the recording device 4 and the display device 5 and therefore the load of the patient is reduced. In this state, the image data picked-up by the recording device 4 is stored.
- the recording device 4 when the operation is being checked, the recording device 4 is connected to the display device 5 by the USB cable 26 .
- the receiving time is added to the image data from the capsule 3 received by the recording device 4 and is stored. Further, the image is displayed in realtime on the monitor 55 of the display device 5 .
- the necessary image data is stored by using only the recording device 4 by detaching the USB cable 26 and the display function is not provided. Therefore, the convenience is preferable for the patient without increasing the scale.
- the USB driver 48 By detaching the USB cable 26 , the USB driver 48 is set to the standby mode and therefore the energy consumption is reduced.
- the first embodiment has the following advantages.
- the recording device 4 is reduced in size and the living body information transmitted from the capsule 3 is checked by the display device 5 as needed without failing to record the information. It is easily checked at the arbitrary time during the examination whether or not the normal operation is possible.
- the receiving strength is detected by the recording device 4 and the antennas 21 a to 21 c with the high receiving-strength are switched so as to receive the signals from the capsule 3 .
- the receiving strengths of the capsule 3 and the recording device 4 are displayed at the designated time interval (when the display device 5 is connected). In this case, the capsule 3 and the recording device 4 control the gain based on the value of the detected receiving strength.
- a predetermined receiving strength is ensured to receive and transmit the signal by the antenna. If the proper receiving state is not set under the gain control, the antennas are switched so as to use the antenna for properly receiving the signal.
- FIG. 5 shows a state in which the recording device 4 (receiver in FIG. 5 ) receives the signal from the capsule 3 via an antenna (e.g., antenna 21 a in FIG. 1 ) having antenna switching data 0 .
- the antennas are switched by using antenna switching 0 to 9 .
- a plurality of examinations are opened in the display device 5 and a tab is clicked, thereby displaying the corresponding image for examination on the display screen of the monitor as a thumbnail image.
- the receiving time is displayed on the bottom of the images.
- the image is divided into 12 images and the interval of the number of divided images is changed by changing the number of divided images.
- the user selects the number of divisions, thereby displaying the images at the interval of the users desired number of images.
- the operation may be as follows according to a modification.
- the recording device 4 may transmit the image data to the display device 5 without recording the image data in the PC card memory 45 .
- the time stamp is added to the image data from the capsule 3 and the processing details in step S 4 are transmitted to the display device 5 together with the image data having the time stamp.
- the details may be changed to prevent the recording of the image data in the PC card memory 45 .
- the operation is the same as that according to the first embodiment.
- the operating mode of the recording device 4 may be changed depending on the connection or disconnection of the display device 5 according to the modification.
- a DC voltage for detecting the connection may be outputted to the voltage detecting circuit 49 from the display device 5 and the voltage may charge the battery 36 a or 36 b in the power supply block 25 .
- FIG. 8 shows a second embodiment of the present invention.
- a capsular medical apparatus 1 B comprises: the capsule 3 ; a recording device 4 B; and the display device 5 .
- the recording device 4 B according to the second embodiment is formed by providing, for the recording device 4 , a large capacity EEPROM 61 as a non-volatile memory which is electrically overwritten (with a large capacity). That is, according to the second embodiment, the recording device 4 B comprises a plurality of pieces of information recording means for selective use.
- the EEPROM 61 with the large capacity is connected via the address selector 43 to a bus to which the CPUs 41 and 42 and the RTC 42 are connected, similarly to the SRAM 44 .
- the CPU 40 controls the operation that the received image data is stored in the large EEPROM 61 when the PC card memory 45 is not attached to the PCMCIA slot 47 in the recording device 4 B.
- the PC card memory 45 is attached to the recording device 4 B.
- the CPU 40 successively controls the operation to write the data to the large EEPROM 61 .
- the image data picked-up by the capsule 3 is stored when the PC card memory 45 is not attached to the recording device 4 B.
- FIG. 9 shows a third embodiment of the present invention.
- the recording device 4 is connected to the display device 5 by the USB cable 26 .
- data is communicated between a recording device 400 and a display device 500 , which form an extracorporeal device 600 , by using an analog video signal cable 260 .
- a D/A converter 148 is arranged to the recording device 400 and the living body information is transmitted to the display device 500 via the D/R converter 148 .
- Reference numeral 148 a denotes a clock gate.
- the display device 500 directly displays the living body information on a monitor 550 because the recording device 400 transmits the living body information as an analog signal.
- Reference numeral 560 denotes a voltage generating circuit having the same function as that of the voltage generating circuit 56 according to the first embodiment.
- the recording device 400 transmits the living body information as the analog signal to the display device 500 .
- the USB receiver 51 and the CPU 52 which are necessary according to the first embodiment are unnecessary and thus the structure of the display device 500 can be simplified.
- the operation or the like is checked by connecting the display device upon starting the apparatus or the like.
- the operation check or the like is unnecessary, the display device is detached and thus the load of the patient is reduced.
- the capsule 3 for picking up the optical image data is used.
- a capsule for obtaining ultrasonic image data can be used.
- a capsule having a function for detecting pH or the like can be used and further a capsule for medical action such as medicine spray or the like can be used.
Abstract
A capsular medical apparatus according to the present invention includes a capsule which can be swallowed or inserted in the body, a recording device which receives living body information transmitted from the capsule and which records the received information, and a display device of the living body information. Further, the capsular medical apparatus includes a USB connector which connects and disconnects the recording device and the display device, a voltage detecting circuit which detects the connection between the recording device and the display device, and a USB cable which transmits the living body information to the display device from the recording device.
Description
- This application is a continuation application of U.S. application Ser. No. 10/846,970 filed on May 14, 2004, which is based upon and claims the benefit of priority from the prior Japanese Patent Application No. 2003-136395 filed on May 14, 2003; the entire contents of each of which are incorporated herein by reference.
- 1. Field of the Invention
- The present invention relates to a capsular medical apparatus for obtaining living body information.
- 2. Description of the Related Art
- Recently, there is a capsular medical apparatus which easily examines the body by the capsule shape that facilitates the swallowing of a patient.
- For example, U.S. Pat. No. 5,604,531 discloses a potable storage unit and a stationary storage unit.
- According to the present invention, a capsular medical apparatus comprises a capsule which can be swallowed or inserted in the body, a recording device which receives living body information transmitted from the capsule and which records the received information, and a display device of the living body information. The capsular medical apparatus further comprises attaching/detaching means which connects and disconnects the recording device and the display device, detecting means which detects the connection between the recording device and the display device, and transfer means which transfers the living body information to the display device from the recording device. The operation or the like is checked by connecting the display device upon starting the apparatus or the like. When the operation check or the like is unnecessary, the display device is detached and thus the load of the patient is reduced.
- The above and other objects, features and advantages of the invention will become more clearly understood from the following description referring to the accompanying drawings.
-
FIGS. 1 to 7 relate to a first embodiment of the present invention,FIG. 1 is a diagram showing the structure of a capsular medical apparatus,FIG. 2 is a flowchart showing the flow for adding time information to image data received by a recording device and recording the information,FIG. 3 is a diagram showing an image format additionally having a time stamp on the received image,FIG. 4 is a diagram showing a display example of the image additionally having the time stamp on the display device,FIG. 5 is a diagram showing a display example of an image including contents of parameter setting upon displaying the receiving strength at a designated time interval,FIG. 6 is a diagram showing a display example of an image for corresponding examination by clicking a tab in a state in which a plurality of examinations are opened,FIG. 7 is a diagram showing a display example of an image displayed at the corresponding piece interval by selecting the number of divisions, -
FIG. 8 is a diagram showing the structure of a capsular medical apparatus according to a second embodiment of the present invention, and -
FIG. 9 is a diagram showing the structure of a capsule endoscope apparatus according to a third embodiment of the present invention. - A first embodiment of the present invention will be described with reference to
FIGS. 1 to 7 . - Referring to
FIG. 1 , a capsularmedical apparatus 1 according to the first embodiment of the present invention comprises: a capsular in-body unit 3 which is inserted in the body by swallowing or inserting operation or the like and which picks up an image (hereinafter, abbreviated to a capsule); arecording device 4 which is arranged outside the body and receives, by radio waves, living body information transmitted from acapsule 3 and which records the data; and adisplay device 5 which is connected detachably (attached and detached) to therecording device 4 and which displays the living body information. Therecording device 4 and thedisplay device 5 form anextracorporeal device 6. - The
recording device 4 has small size and light weight for recording (storing) image data transmitted from thecapsule 3 so as to be attached to a white cloth or jacket of a patient. Upon displaying the image so as to check the operation or the like, therecording device 4 is connected to thedisplay device 5 having a function for displaying the image on therecording device 4 by aUSB cable 26. - In the
capsule 3, at one end portion (front end) in anaccommodating container 10 that is capsule-shaped and is sealed, an illuminating and observingwindow 11 that is semi-spherical and contains a transparent member is formed. Further, in thecapsule 3, an objectiveoptical system 12 is attached to a lens frame facing the center portion of the illuminating and observingwindow 11, and fourwhite LEDs 13 or the like are respectively arranged as light emitting elements forming illuminating means at four positions or the like around the objectiveoptical system 12. - A
CMOS sensor 14 or the like is arranged, as an image sensor for obtaining image information on the living body, at the position for forming images in the objectiveoptical system 12. TheCMOS sensor 14 comprises, on the back surface side, asignal processing circuit 15 which generates the image data (e.g., JPEG data) that is obtained by performing the signal processing of theCMOS sensor 14 and compressing the processed data; acommunication circuit 16 for radio communication; and a plurality ofbutton batteries 17 which feed the power for operation to theCMOS sensor 14 and thesignal processing circuit 15. - Further, at the side portion adjacent to the
CMOS sensor 14, anantenna 18, which is connected to thecommunication circuit 16 and which irradiates and receives the electric waves for radio communication with (antennas 21 a to 21 c) of theextracorporeal recording device 4, is provided. Also at the rear end adjacent to the plurality ofbutton batteries 17, aswitch 19, which performs the on/off operation of the power supply, is provided. TheCMOS sensor 14, thesignal processing circuit 15, and thecommunication circuit 16 are electrically connected by aflexible substrate 20. Further, theflexible substrate 20 is connected to the plurality ofbutton batteries 17 via theswitch 19. - On the other hand, the
extracorporeal recording device 4 comprises: anantenna unit 22 to which the plurality ofantennas 21 a to 21 c are connected; arecording processing block 24 that is accommodated in acasing 23 to which theantenna unit 22 is detachably connected and that records image data; and apower supply block 25 which supplies power to therecording processing block 24 and the like. - The
recording device 4 is detachably connected to thedisplay device 5 by the USB cable 26 (as data transfer means for transferring data to thedisplay device 5 from the recording device 4). By connecting thedisplay device 5 to therecording device 4 via theUSB cable 26, the image received by therecording device 4 and the image stored in therecording device 4 are transferred to thedisplay device 5 side. Thedisplay device 5 performs the decompressing processing of the transferred image data, displays the processed data on the display screen, and simultaneously edits and displays a plurality of images. - In addition to one terminal on the
recording device 4 side in theUSB cable 26 and the other terminal on thedisplay device 5, a conductive terminal is provided. TheUSB cable 26 is freely detachably connected to the conductive terminal of the USB connector of therecording device 4 and the conductive terminal of the USB connector of thedisplay device 5. - The
antenna unit 22 has an exterior case containing aresin casing 22 a whose inner or external surface is subjected to the shielding processing such as metal plating. Theantenna unit 22 comprises: anantenna selector 32 which switches theantennas 21 a to 21 c connected thereto by acoaxial cable 31; a high-frequency circuit (abbreviated to an RF circuit) 33 which communicates data by radio waves and which is connected to theantennas 21 a to 21 c via theantenna selector 32; a base band circuit (abbreviated to a BB circuit) 34 which generates the base band signal that is demodulated by theRF circuit 33; and aconnector 35 which is detachably connected to therecording device 4. - A portion for handing the high-frequency signal, mainly including the
RF circuit 33, is sealed in theantenna unit 22. A connecting portion to therecording device 4 in theconnector 35 handles only the base band signal (and antenna switching signal). Thus, the reliability and the stability of the operation are improved. - The
casing 23 of therecording device 4 is made of metal or (shielding processed) resin, and accommodates apower supply block 25 and arecording processing block 24. - The
power supply block 25 comprises:batteries switches batteries supply monitoring circuit 38 which monitors voltages of thebatteries switches DC converter 39 which is connected to the ON-operation battery and converts the voltage into DC power of a voltage value necessary for therecording processing block 24. - The DC current of the DC/
DC converter 39 is supplied to theantenna unit 22 side via theconnector 35 as well as therecording processing block 24. - The
recording processing block 24 comprises: aCPU 40 which controls therecording device 4; aCPU 41 which mainly controls theantenna unit 22; a real-time clock (abbreviated to an RTC) which is connected to both theCPUs address selector 43 which is connected to both theCPUs antenna selector 32; a memory (SRAM) 44 which is connected to theaddress selector 43 and temporarily stores data from theselected antenna selector 32; aPC card controller 46 which is connected to both theCPUs PC card memory 45; a PCMCIAslot 47 which is connected to thePC card controller 46; thePC card memory 45 which is detachably connected to the PCMCIAslot 47 and stores received and demodulated image data (JPEG data); aUSB driver 48 which performs the processing for transferring data to thedisplay device 5 via theUSB cable 26 when thedisplay device 5 is connected to therecording device 4 via theUSB cable 26; avoltage detecting circuit 49, (as detecting means which detects the connection between therecording device 4 and the display device 5), which detects the connection to thedisplay device 5 by using the voltage; and an oscillator (OSC) 50 which supplies reference clocks to theCPU 41 and the like. - The
CPU 40 determines whether or not it is connected to thedisplay device 5 based on the level of (the signal of) the voltage of thevoltage detecting circuit 49. TheCPU 40 transmits a control signal for opening or closing a gate to aclock gate 48 a provided for theUSB driver 48, and controls the operation of theUSB driver 48. - That is, in a state in which a predetermined voltage is detected and the
display device 5 is connected to the CUP 40, theclock gate 48 a is opened, thus to supply a clock CLK to theUSB driver 48. Further, theUSB driver 48 is set to the operating state. Then, theCPU 40 records the image data received by theantenna unit 22 to thePC card memory 45 and transmits the recorded data to thedisplay device 5 side via theUSB driver 48. - In a state in which the predetermined voltage is not detected and the
display device 5 is not connected to theCPU 40, theCPU 40 closes theclock gate 48 a and sets a standby mode in which the clock CLK is not supplied to theUSB driver 48 and controls the operation for reducing the power consumption by theUSB driver 48. In this case, theCPU 40 records the data received by theantenna unit 22 to thePC card memory 45. - As mentioned above, according to the first embodiment, the
recording device 4 and thedisplay device 5 are independently formed and therecording device 4 is detachable to thedisplay device 5 by theUSB cable 26 as transfer means for transferring the data. Thus, only therecording device 4 is used to handle thecapsule 3. Further, thecapsule 3 is used by connecting therecording device 4 and thedisplay device 5. Consequently, the load of the patient is reduced and the operability is ensured. Further, therecording device 4 is operated in different operating modes depending on the presence or absence of the connection at theUSB cable 26. - Each time when the
antenna unit 22 receives the image data from thecapsule 3, theCPU 40 orCPU 41 reads time data from theRTC 42, adds the time data to the received image data (specifically, JPEG data), and stores the image data with a time stamp in thePC card memory 45.FIG. 3 shows an image format additionally having the time data with the image data. - The
display device 5 comprises: aUSE receiver 51 which is connected to the USEdriver 48 in therecording device 4 by the USEcable 26, and receives the JPEG data as the image data transmitted from the USEdriver 48; aCPU 52 which is connected to theUSE receiver 51 via a bus and controls the operation of thedisplay device 5 and performs the decompression processing of the image data; a memory (specifically, SDRAM) 53 which is connected to the bus, temporarily stores the image data, and is used as a work area of theCPU 52; a videosignal generating circuit 54 which is connected to the bus, and performs the processing for converting a video signal (e.g., RGB video signal) for displaying the image of the image data subjected to the decompression processing by theCPU 52; amonitor 55 which is connected to an output terminal of the videosignal generating circuit 54 and displays the corresponding image by inputting the RGB video signal or the like as the video signal; and avoltage generating circuit 56 which generates the voltage for detecting whether or not therecording device 4 is connected by connecting one terminal of the voltage generatingcircuit 56 to theUSE cable 26. - As mentioned above, when the
display device 5 is connected to therecording device 4 by theUSE cable 26, therecording device 4 transmits, to thedisplay device 5, the image data with the time stamp additionally having the time data. Thedisplay device 5 decompresses the JPEG data and displays the received time at the portion on the bottom of the image as shown inFIG. 4 . - As mentioned above, according to the first embodiment, the
recording device 4 stores, in thePC card memory 45, the image data transmitted from thecapsule 3 as the image data with the time stamp additionally having the received time. - Further, according to the first embodiment, the
display device 5 is detachable to therecording device 4, and therecording device 4 detects whether or not thedisplay device 5 is connected thereto. When thedisplay device 5 is connected to therecording device 4, the image data with the time stamp is stored in thePC card memory 45 and is transmitted to thedisplay device 5, thus to check in realtime the image by displaying the image on themonitor 55 of thedisplay device 5. - When the image does not need to be checked, the
USB cable 26 is detached from therecording device 4, and thus therecording device 4 is detached from thedisplay device 5. TheUSE cable 26 for connection to thedisplay device 5 is not connected to therecording device 4 and therefore the load of the patient is reduced. The operability (easy use) is improved. - Next, the typical operation will be described with reference to
FIG. 2 according to the first embodiment. - Upon examining the body by using the
capsule 3, when the operation of thecapsule 3 is checked, therecording device 4 is connected to thedisplay device 5 by theUSB cable 26 as shown inFIG. 1 , and the power of therecording device 4 and thedisplay device 5 is turned on as shown in step S1 inFIG. 1 , and the power of thecapsule 3 is turned on. In this case, therecording device 4 is attached to a white cloth or the like of the patient. - Then, in step S2, the
CPU 40 of therecording device 4 determines whether or not thedisplay device 5 is connected to the CPU 40 (by the voltage detecting signal from the voltage detecting circuit 49). If theCPU 40 determines that thedisplay device 5 is connected to therecording device 4, in step S3, theCPU 40 opens theclock gate 48 a of theUSB driver 48, and the clock CLK is supplied to theUSB driver 48 to (reset the standby state) and set the operating state. - In step S4, when the
CPU 40 receives the image data transmitted from thecapsule 3, theCPU 40 adds the time data of theRTC 42 to the image data so as to form the image data additionally having the time stamp (as shown inFIG. 3 ) and stores the image data in thePC card memory 45 in therecording device 4. Further, theCPU 40 transmits the image data additionally having the time stamp to thedisplay device 5 via theUSB cable 26. - In step S5, the
display device 5 displays the image to which the receiving time is superimposed. - Specifically, the
display device 5 compresses the image additionally having the transmitted time stamp, therefore, theCPU 52 in thedisplay device 5 decompresses the data, and temporarily stores the decompressed data in the memory (SDRAM) 53. The videosignal generating circuit 54 transmits the decompressed image data, converts the image data into the video signal, and displays the image with the superimposed receiving time on the display screen of themonitor 55 as shown inFIG. 4 . - The processing sequence returns to step S2. By connecting the
display device 5 to therecording device 4, the medical staff can check the picked-up image by thecapsule 3 in realtime, and can know the obtaining time of the image. - After that, the patient swallows the
capsule 3 and the medical staff can check the image picked-up by thecapsule 3 in this state and can know the obtaining time of the time. When the image does not need to be monitored, theUSB cable 26 is detached from therecording device 4 and the load of the patient is reduced. - In this case, when the
CPU 40 of therecording device 4 determines in step S2 that thedisplay device 5 is not connected, in step S6, theCPU 40 closes theclock gate 48 a of theUSB driver 48 and the standby mode is set to prevent the clock CLK from being supplied to theUSB driver 48. - In step S7, the
CPU 40 receives the image data (specifically, JPEG data) transmitted from thecapsule 3. Then, theCPU 40 adds the time data of theRTC 42 to the image data, set the image data additionally having the time stamp (as shown inFIG. 3 ), and stores the image data to thePC card memory 45 in therecording device 4. The processing sequence returns to step S2. - When the operation of the
capsule 3,recording device 4, anddisplay device 5 is checked after swallowing thecapsule 3 by the patient, theUSB cable 26 is not connected to the patient by detaching, from therecording device 4, theUSB cable 26 for connecting therecording device 4 and thedisplay device 5 and therefore the load of the patient is reduced. In this state, the image data picked-up by therecording device 4 is stored. - According to the first embodiment, as processed above, when the operation is being checked, the
recording device 4 is connected to thedisplay device 5 by theUSB cable 26. Thus, the receiving time is added to the image data from thecapsule 3 received by therecording device 4 and is stored. Further, the image is displayed in realtime on themonitor 55 of thedisplay device 5. - When the image does not need to be checked on the
monitor 55, the necessary image data is stored by using only therecording device 4 by detaching theUSB cable 26 and the display function is not provided. Therefore, the convenience is preferable for the patient without increasing the scale. - By detaching the
USB cable 26, theUSB driver 48 is set to the standby mode and therefore the energy consumption is reduced. - Therefore, the first embodiment has the following advantages.
- That is, the
recording device 4 is reduced in size and the living body information transmitted from thecapsule 3 is checked by thedisplay device 5 as needed without failing to record the information. It is easily checked at the arbitrary time during the examination whether or not the normal operation is possible. - According to the first embodiment, the receiving strength is detected by the
recording device 4 and theantennas 21 a to 21 c with the high receiving-strength are switched so as to receive the signals from thecapsule 3. - The receiving strengths of the
capsule 3 and therecording device 4 are displayed at the designated time interval (when thedisplay device 5 is connected). In this case, thecapsule 3 and therecording device 4 control the gain based on the value of the detected receiving strength. - Under the gain control, a predetermined receiving strength is ensured to receive and transmit the signal by the antenna. If the proper receiving state is not set under the gain control, the antennas are switched so as to use the antenna for properly receiving the signal.
-
FIG. 5 shows a state in which the recording device 4 (receiver inFIG. 5 ) receives the signal from thecapsule 3 via an antenna (e.g.,antenna 21 a inFIG. 1 ) havingantenna switching data 0. Referring toFIG. 5 , the antennas are switched by using antenna switching 0 to 9. - According to the first embodiment, referring to
FIG. 6 , a plurality of examinations (specifically, Taro and Minoru Iiduka) are opened in thedisplay device 5 and a tab is clicked, thereby displaying the corresponding image for examination on the display screen of the monitor as a thumbnail image. In this case, the receiving time is displayed on the bottom of the images. - According to the first embodiment, referring to
FIG. 7 , it is possible to change and set the number of divided images displayed once on the display screen of the monitor. In the example ofFIG. 7 , the image is divided into 12 images and the interval of the number of divided images is changed by changing the number of divided images. - Therefore, the user selects the number of divisions, thereby displaying the images at the interval of the users desired number of images.
- In addition to the above-mentioned operation, the operation may be as follows according to a modification.
- When the
display device 5 is connected to therecording device 4, therecording device 4 may transmit the image data to thedisplay device 5 without recording the image data in thePC card memory 45. - That is, in the flowchart showing the operation details shown in
FIG. 2 according to the first embodiment, the time stamp is added to the image data from thecapsule 3 and the processing details in step S4 are transmitted to thedisplay device 5 together with the image data having the time stamp. The details may be changed to prevent the recording of the image data in thePC card memory 45. - Therefore, when the
display device 5 is not connected to therecording device 4, the operation is the same as that according to the first embodiment. As mentioned above, the operating mode of therecording device 4 may be changed depending on the connection or disconnection of thedisplay device 5 according to the modification. - When the
display device 5 is connected to therecording device 4, a DC voltage for detecting the connection may be outputted to thevoltage detecting circuit 49 from thedisplay device 5 and the voltage may charge thebattery power supply block 25. -
FIG. 8 shows a second embodiment of the present invention. - Referring to
FIG. 8 , a capsularmedical apparatus 1B according to the second embodiment comprises: thecapsule 3; arecording device 4B; and thedisplay device 5. Therecording device 4B according to the second embodiment is formed by providing, for therecording device 4, alarge capacity EEPROM 61 as a non-volatile memory which is electrically overwritten (with a large capacity). That is, according to the second embodiment, therecording device 4B comprises a plurality of pieces of information recording means for selective use. - Further, according to the second embodiment, in the
recording device 4B, theEEPROM 61 with the large capacity is connected via theaddress selector 43 to a bus to which theCPUs RTC 42 are connected, similarly to theSRAM 44. TheCPU 40 controls the operation that the received image data is stored in thelarge EEPROM 61 when thePC card memory 45 is not attached to thePCMCIA slot 47 in therecording device 4B. - The
PC card memory 45 is attached to therecording device 4B. When thePC card memory 45 overflows due to the recording of the image data or the like, theCPU 40 successively controls the operation to write the data to thelarge EEPROM 61. - Other operations are the same as those according to the first embodiment.
- According to the second embodiment, in addition to the advantages of the first embodiment, the image data picked-up by the
capsule 3 is stored when thePC card memory 45 is not attached to therecording device 4B. -
FIG. 9 shows a third embodiment of the present invention. - According to the first embodiment, the
recording device 4 is connected to thedisplay device 5 by theUSB cable 26. However, according to the third embodiment, data is communicated between arecording device 400 and adisplay device 500, which form anextracorporeal device 600, by using an analogvideo signal cable 260. - Therefore, in place of the
USB driver 48 provided for thedisplay device 5 according to the first embodiment, a D/A converter 148 is arranged to therecording device 400 and the living body information is transmitted to thedisplay device 500 via the D/R converter 148. Reference numeral 148 a denotes a clock gate. - The
display device 500 directly displays the living body information on amonitor 550 because therecording device 400 transmits the living body information as an analog signal.Reference numeral 560 denotes a voltage generating circuit having the same function as that of thevoltage generating circuit 56 according to the first embodiment. - According to the third embodiment, the
recording device 400 transmits the living body information as the analog signal to thedisplay device 500. Thus, theUSB receiver 51 and theCPU 52 which are necessary according to the first embodiment are unnecessary and thus the structure of thedisplay device 500 can be simplified. - As mentioned above, according to the present invention, the operation or the like is checked by connecting the display device upon starting the apparatus or the like. When the operation check or the like is unnecessary, the display device is detached and thus the load of the patient is reduced.
- According to the above embodiments, the
capsule 3 for picking up the optical image data is used. However, a capsule for obtaining ultrasonic image data can be used. - In addition to the acquisition of the image data, a capsule having a function for detecting pH or the like can be used and further a capsule for medical action such as medicine spray or the like can be used.
- Having described the preferred embodiments of the invention referring to the accompanying drawings, it should be understood that the present invention is not limited to the those precise embodiments and various changes and modifications thereof could be made by one skilled in the art without departing from the spirit or scope of the invention as defined in the appended claims.
Claims (18)
1. A display apparatus comprising:
a monitor for displaying information;
a pointing device for accepting operation by an operator; and
a personal computer for receiving, recording and calculating living body information sent from a capsule inserted in a living body;
wherein the monitor comprises main display portion for sequentially displaying the living body information according to the information of time of having received the living body information; a thumbnail display portion for selecting as a thumbnail a predetermined image information in the living body information displayed on the main display portion and displaying the same, and a pointing cursor which moves on the monitor by the operation of the operator, and
wherein using the pointing device, the pointing cursor is moved on the main display portion, and when the predetermined image information is displayed on the main display portion, the predetermined image information is selected as a thumbnail by clicking the pointing device and displayed on the thumbnail display portion.
2. The display apparatus according to claim 1 , wherein a plurality of examination images are simultaneously displayed on the monitor, and when the predetermined image information is displayed on the main display portion, if the pointing device is clicked, a corresponding thumbnail is selected and displayed on the thumbnail display portion.
3. The display apparatus according to claim 1 , wherein the thumbnail is selected and displayed on the thumbnail display portion, and at the same time, the date and time of having received the corresponding living body information is displayed.
4. The display apparatus according to claim 2 , wherein the thumbnail is selected and displayed on the thumbnail display portion, and at the same time, the date and time of having received the corresponding living body information is displayed.
5. The display apparatus according to claim 1 , wherein thumbnails are displayed as a list.
6. The display apparatus according to claim 2 , wherein thumbnails are displayed as a list.
7. The display apparatus according to claim 3 wherein thumbnails are displayed as a list.
8. The display apparatus according to claim 4 , wherein thumbnails are displayed as a list.
9. The display apparatus according to claim 5 , wherein the number of thumbnails which are displayed as the list can be arbitrarily changed.
10. The display apparatus according to claim 6 , wherein the number of thumbnails which are displayed as the list can arbitrarily changed.
11. The display apparatus according to claim 7 , wherein the number of thumbnails which are displayed as the list can be arbitrarily changed.
12. The display apparatus according to claim 8 , wherein the number of thumbnails which are displayed as the list can be arbitrarily changed.
13. The display apparatus according to claim 1 , wherein the thumbnail is displayed, and at the same time, the date and time of having received the corresponding living body information is displayed.
14. The display apparatus according to claim 2 , wherein the thumbnail is displayed, and at the same time, the date and time of having received the corresponding living body information is displayed.
15. The display apparatus according to claim 5 , wherein the thumbnail is displayed, and at the same time, the date and time of having received the corresponding living body information is displayed.
16. The display apparatus according to claim 6 , wherein the thumbnail is displayed, and at the same time, the date and time of having received the corresponding living body information is displayed.
17. The display apparatus according to claim 9 , wherein the thumbnail is displayed, and at the same time, the date and time of having received the corresponding living body information is displayed.
18. The display apparatus according to claim 10 , wherein the thumbnail is displayed, and at the same time, the date and time of having received the corresponding living body information is displayed.
Priority Applications (1)
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US12/057,094 US20080238869A1 (en) | 2003-05-14 | 2008-03-27 | Capsular medical apparatus |
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US12/057,094 US20080238869A1 (en) | 2003-05-14 | 2008-03-27 | Capsular medical apparatus |
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US10/846,970 Continuation US7367940B2 (en) | 2003-05-14 | 2004-05-14 | Capsular medical apparatus |
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Also Published As
Publication number | Publication date |
---|---|
WO2004100776A1 (en) | 2004-11-25 |
US20050038321A1 (en) | 2005-02-17 |
JPWO2004100776A1 (en) | 2006-07-13 |
US7367940B2 (en) | 2008-05-06 |
JP4402655B2 (en) | 2010-01-20 |
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