Abstract: The accurate position detection without being affected by an unnecessary second magnetic field can be realized by calculating the unnecessary second magnetic field induced and generated at positions of magnetic field sensors by a guiding coil arranged the position detection area of the medical device due to an action of a first magnetic field generated by a magnetic field generator, at the time of position detection, and the second magnetic field is subtracted from the first magnetic field detected by the magnetic field sensors to calculate corrected magnetic-field information. Further, LUTs that store beforehand numerical information having a correlation with the second magnetic field induced and generated at the positions of magnetic field sensors are used to calculate the second magnetic field, thereby enabling to reduce an amount of calculation performed each time and realize high speed processing.

Abstract: A capsule endoscope device includes an illumination unit that illuminates a living tissue using at least one of a white light illumination unit and a special light illumination unit; an imaging unit that captures an image of the tissue; a transmission unit that transmits imaging information containing the image; a storage unit that stores a threshold with respect to information on a distance between the endoscope and the tissue; a detection unit that detects the information; and an output unit that compares the information with the threshold, selects an image capturing condition of a special light observation mode if the distance is not larger than the threshold, selects an image capturing condition of a normal light observation mode if the distance is larger than the threshold, and outputs the selected image capturing condition to an operation unit related to image capturing.

Abstract: A situation where a medical device is outside a region suitable for guidance control thereof can be easily coped with. Included are a medical device provided with a magnet; a guiding unit (5X-1, 5X-2, 5Y-1, 5Y-2, 5Z-1, 5Z-2) that forms a control magnetic field for guidance control of the medical device, inside a prescribed control area; a detection unit (7Y-1, 7Y-2) that detects positional information of the medical device; and a computational unit that judges that the medical device has gone outside the control area on the basis of an output from the detection unit (7Y-1, 7Y-2) and calculates a direction for returning the medical device to the control area, wherein a signal-waveform calculating unit (21) stops forming the control magnetic field when the medical device is outside the control area.

Abstract: A capsule medication administration system includes: a first capsule for internal body marking; a second capsule for medication; a marking device which makes a marking within a living body; a drug retention section which retains a drug; a release device which releases the drug; a detection device which detects the marking; a decision device which decides whether or not a marking which has been detected by the detection device is a specified marking; and a release control device which operates the release device, if it has been decided by the decision device that it is the specified marking; wherein the first capsule comprises the marking device. The second capsule comprises the drug retention section and the release device.

Abstract: A medical-device magnetic guiding position detecting system that can prevent a decrease in the strength of a position detecting magnetic field in an operating area of a medical device is provided. The medical-device magnetic guiding position detecting system includes a medical device that is disposed in the body of a subject and that includes at least one magnet and a circuit including an internal coil, a first magnetic field generating unit for generating a first magnetic field in the operating area of the medical device, position detecting means for detecting an induction magnetic field induced in the internal coil due to the first magnetic field, and at least one pair of opposing coils for generating a second magnetic field that acts on the at least one magnet. The opposing coils forming each of the at least one pair are independently driven.

Abstract: There is provided an in-vivo information acquisition apparatus capable of detecting high-accuracy in-vivo information substantially at the same time in a plurality of different examination sites in a body cavity and an in-vivo information acquisition apparatus system capable of introducing a plurality of in-vivo information acquisition apparatuses into a patient at the same time. The in-vivo information acquisition apparatus includes a specimen-collecting section for collecting a specimen at an examination site in a body cavity, a specimen-evaluating section for evaluating the specimen collected by the specimen-collecting section and outputting an evaluation result, a labeling section having identification information unique to the in-vivo information acquisition apparatus, a communication section for receiving a signal transmitted from the outside and for transmitting to the outside the evaluation result output by the specimen-evaluating section, and a power supply section for supplying electrical power.

Abstract: A capsule medication administration system includes: a first capsule for internal body marking; a second capsule for medication; a marking device which makes a marking within a living body; a drug retention section which retains a drug; a release device which releases the drug; a detection device which detects the marking; a decision device which decides whether or not a marking which has been detected by the detection device is a specified marking; and a release control device which operates the release devices if it has been decided by the decision device that it is the specified marking; wherein the first capsule comprises the marking device. The second capsule comprises the drug retention section and the release device.

Abstract: An encapsulated medical device system according to an embodiment of the present invention includes a selector between a receiving device and a plurality of receiving antennas having their respective directionalities. The system selects and disconnects any receiving antenna subjected to the effect of a magnetic field used to guide a capsule endoscope, and captures information about the inside of a body from the appropriate receiving antenna thus selected. The system prevents an overload current caused by induced voltage from being applied to the receiving device. The system includes the function of preventing the overload current, caused by induced voltage arising from a sudden movement of the capsule endoscope or sudden change in magnetic field gradient, from being applied to a transmission circuit of the capsule endoscope and a receiving device.

Abstract: Smooth guiding through the inside of a body cavity is carried out by a magnetic field applied from the outside of the body. The provided capsule medical device (1) includes a bio-information detecting device (5) for detecting bio information of the inside of a body cavity; a magnet (12) for receiving a guidance magnetic field applied from outside the body and generating a driving force; a coil (7) for receiving a position-detection magnetic field applied from outside the body and generating a position-detection signal; a filter device (8), connected to the coil (7), for attenuating an induction signal component which is generated by the guidance magnetic field incident on the coil (7); and a wireless transmission device (10) for externally transmitting the position-detection signal which has passed through the filter device (8) and the bio information which has been detected by the bio-information detecting device (5).

Abstract: A medical device control system improves an inducing stability and operability of a medical device having its direction controlled with magnetism, which is used for the inspection or treatment in a subject's body. The control system is formed of a medical device including an insertion member inserted into the subject's body, and a magnetic field response portion disposed within the insertion member for generating torque in response to the magnetic field applied from outside the subject's body, a direction detection unit that detects an insertion direction of the insertion member, a user interface through which the information with respect to the control of the insertion direction is input and output, a magnetic field generation portion that generates a magnetic field that directs the insertion member to a control direction, and a user interface control unit that controls the user interface based on a discordance between the control direction and the insertion direction.

Abstract: A capsule medication administration system includes: a first capsule for internal body marking; a second capsule for medication; a marking device which makes a marking within a living body; a drug retention section which retains a drug; a release device which releases the drug; a detection device which detects the marking; a decision device which decides whether or not a marking which has been detected by the detection device is a specified marking; and a release control device which operates the release device, if it has been decided by the decision device that it is the specified marking; wherein the first capsule comprises the marking device. The second capsule comprises the drug retention section and the release device.

Abstract: A capsule casing of a capsule medical device has a chemical sensor inside, used for sensing operation. The chemical sensor has a recovery device which resets the chemical sensor to an initial state thereof so as to use the chemical sensor for the sensing operation a plurality of times or continuously.

Abstract: A capsule type medical device, including: a capsule shaped casing which can be ingested to within the living body; an electrical stimulation device which comprises a plurality of electrodes which are used for applying electrical stimuli to living body tissue; an electrode selection device which selects an electrode from among the plurality of electrodes, to apply an electrical stimulus; a contact detection device which electrically detects the electrode which is in contact with the living body tissue; and a control section which controls the various devices.

Abstract: An object of the present invention is to continuously display a series of images of the inside of the subject until the intra-body indwelling capsule is placed at the desired site in the subject, and to easily place the intra-body indwelling capsule endoscope at the desired site. The intra-subject indwelling system 1 according to the present invention includes an endoscope device 14 for imaging a first image of the inside of the subject; an intra-body indwelling capsule 2, for imaging a second image of the inside of the subject; a monitor device 12 for receiving the second image; a receiving device 13, a monitor 11 for displaying the first image or the second image; and an image switching device 10. The intra-body indwelling capsule 2 is arranged at the distal end of the inserting unit 5, and the separation from the inserting unit 5 is detected and the separation detection result is transmitted. The receiving device 13 receives the separation detection result.

Abstract: Provided is an intra-subject medical system which includes a body-insertable device and a physical quantity generator. The body-insertable device is to be introduced into a subject, is covered by a capsule-shaped exterior member, and includes a physical quantity detecting member which has a directivity to detect a predetermined physical quantity; at least one functional member which has a necessary function for examining or treating inside the subject; and a switch control unit which controls an on/off states or operation mode of the at least one functional member when the physical quantity detecting member detects a physical quantity. The physical quantity generator has a physical quantity emitting unit which emits a temporary physical quantity inside the subject; and a physical quantity direction changing unit which changes an emission direction of the physical quantity.

Abstract: There is provided a position detection system (1) including a first marker (4) that produces a first alternating magnetic field having a first position-calculating frequency by means of an external power supply; a second marker (3) including a magnetic induction coil (5) having a resonance frequency equal to the position-calculating frequency; a magnetic-field detection section (13) that is disposed outside a working region of the second marker (3) and that detects a magnetic field at the first position-calculating frequency; an extracting section (24) that extracts, from the detected magnetic field, a first detection-magnetic-field component having the first position-calculating frequency and having the same phase as the phase of the first alternating magnetic field; and a position/orientation analyzing section (22) that calculates at least one of the position and the orientation of the first marker (4) based on the intensity of the extracted first detection-magnetic-field component.

Abstract: A capsule type medical device is of a type of a capsule type medical device that is introduced inside the living body to gather in-vivo information, and comprises a capsule shaped casing; an in-vivo information acquisition device for acquiring the in-vivo information; a communication device for sending the in-vivo information acquired by the in-vivo information acquisition device to outside of the living body by wireless; at least one pair of first electrodes provided in a vicinity of one end along an axis of the casing for giving electric stimulation to body tissue in the living body; a first current control device for sending current to the first electrodes; and an interelectrode distance variation device for changing a distance between the electrodes.

Abstract: A capsule guiding system includes a magnetic guiding unit, a displaying unit, an operation unit, and a control unit. The magnetic guiding unit guides, using magnetic force, a capsule-shaped medical apparatus introduced inside a subject. The displaying unit displays an image of the subject and an image of the capsule-shaped medical apparatus as an overlapped image, and changes relative position and relative direction between the two images as the capsule-shaped medical apparatus is guided by the magnetic guiding unit. The operation unit inputs coordinate information which specifies movement direction of the capsule-shaped medical apparatus.

Abstract: A rotary self-propelled endoscope system includes an insertion section body, an insertion section, a drive unit, a torque detection unit, and a control unit. In a distal end portion of the insertion section body, a rigid distal end portion including an image pickup apparatus is disposed. The insertion section is rotatably fit to the outside of the insertion section body, and includes a rotary tubular member having a helical portion formed by a helical concave-convex portion. The drive unit applies the rotary tubular member with axial and rotational drive force. The torque detection unit detects torque information of the rotary tubular member. On the basis of the torque information detected by the torque detection unit, the control unit compares a present value with a preset limit value for controlling the torque of the rotary tubular member, and controls the drive unit on the basis of the comparison result.

Abstract: An image display apparatus according to the present invention includes: a storage unit which stores an image group including a same number of first and second images which have a coincident positional relationship with respect to a subject and are respectively obtained through different image processes; a display unit which displays at least the first image in a display area; an input unit which indicates a display switching area of the first image displayed in the display area; and a display controller which controls the display unit to keep displaying the first image in an image part outside the display switching area and to switch an image part inside the display switching area of the first image to an image part, having a coincident positional relationship with the image part inside the display switching area of the first image with respect to the subject, of the second image.