Abstract:
A capsule endoscope includes a capsule-shaped casing and an imaging unit for taking an image of an inside of an organ in a state where the capsule endoscope is floating in liquid introduced inside the organ of a subject. Specific gravity of the capsule endoscope to the introduced liquid is ρ; a plane divides the capsule endoscope such that a volume ratio is to be ρ:1−ρ. A straight line that connects a center of volume of a portion whose volume ratio is ρ and a center of gravity of the capsule endoscope is substantially perpendicular to the plane. The center of gravity is present at a position farther distant from the plane than the center of volume. A surface of a boundary of a field of view that forms an angle of view of the imaging unit and the plane do not intersect outside the capsule endoscope.
Abstract:
A capsule medical device includes a capsule casing that contains an illumination board, an imaging board, a transmission board, and a control board on which functional components are mounted, and a sheet-like battery that supplies power to the functional components. The sheet-like battery is rolled up to be a pole shape and located between cutout parts of the imaging board, the transmission board, and the control board and the inner wall of the capsule casing.
Abstract:
A receiving apparatus (2) includes a radio unit (2a) and a main receiving unit (2b) detachably connected with each other, the radio unit (2a) stores radio unit ID information (12a) as identification information to identify the radio unit itself, the main receiving unit (2b) stores a process condition table (16a) in which process conditions corresponding to the radio units are stored, the main receiving unit (2b) includes a setting controller (C1b) which serves as a setting controller that sets the process condition of the main receiving unit (2b), the setting controller (C1b) acquires the radio unit ID information (12a) from the radio unit (2a), selects the process condition of the main receiving unit (2b) corresponding to the acquired radio unit ID information (12a) from the process condition table (16a), and sets the selected process condition as the process condition of the main receiving unit (2b), so that, when a replaceable unit detachably connected to a shared unit is replaced with another replaceable unit, a process condition of the shared unit can be securely set for each replaceable unit.
Abstract:
A body-insertable apparatus is inserted into a subject body and travels through the subject body and includes a magnetic field generator that generates a constant magnetic field; a covering member that covers the magnetic field generator and that is made of a biocompatible material; and a container that houses and seals the magnetic field generator covered by the covering member.
Abstract:
An object of the invention is to receive, with a high sensitivity, a radio signal transmitted within a short time before a capsule endoscope reaches the stomach of a subject and acquire, in a satisfactory state, information on the interior of the subject such as image data picked up by the capsule endoscope. The receiving apparatus according to the invention includes a plurality of receiving antennas including a specified receiving antenna for receiving a radio signal from a capsule endoscope before the stomach is reached, a switching controller, an arrival determining unit and a mode switching unit. The switching controller performs a control operation for switching to and maintaining the receiving antenna in an initial mode or a control operation for switching to the receiving antennas in a normal mode. The arrival determining unit determines whether the capsule endoscope has reached the stomach or not. The mode switching unit instructs the switching controller to perform the control operation for switching to the initial mode, and upon determination that the stomach has been reached, gives the instruction to perform the control operation for switching to the normal mode.
Abstract:
The invention provides a receiving apparatus that can suppress data loss when an antenna is detached. When a non-connection of an antenna is detected (step S103: Yes) after a recording operation is started (step S101: Yes), the receiving apparatus operates a warning unit to issue a warning to a user to the effect that the antenna is detached (step S105). Therefore, the receiving apparatus does not issue a warning (step S102) when there is no problem even when the antenna is detached, such as when an examination is not yet started (step S101: No). When the antenna is detached in a state that the use of the antenna is essential during an examination, the receiving apparatus notifies the user such as a subject about this fact, thereby prompting the user to correct the connection of the antenna. As a result, the data loss when the antenna is detached can be suppressed.
Abstract:
The invention provides a receiving apparatus that can suppress data loss when an antenna is detached. When a non-connection of an antenna is detected (step S103: Yes) after a recording operation is started (step S101: Yes), the receiving apparatus operates a warning unit to issue a warning to a user to the effect that the antenna is detached (step S105). Therefore, the receiving apparatus does not issue a warning (step S102) when there is no problem even when the antenna is detached, such as when an examination is not yet started (step S101: No). When the antenna is detached in a state that the use of the antenna is essential during an examination, the receiving apparatus notifies the user such as a subject about this fact, thereby prompting the user to correct the connection of the antenna. As a result, the data loss when the antenna is detached can be suppressed.
Abstract:
The present invention is intended to be able to ensure detecting whether an open-circuit occurs to a feeder within short time with simple configuration. A receiving apparatus 2 according to the present invention receives image information transmitted from a capsule endoscope 3 through a coaxial cable and a receiving antenna selected and switched to from among coaxial cables 9a to 9d connected to receiving antennas 8a to 8d, respectively by a changeover switch 20. The receiving apparatus 2 includes a changeover switch 22, an open-circuit detecting circuit 23, and a control unit 26. The changeover switch 22 branches the coaxial cables 9a to 9d near the changeover switch 20, and selects and switches to one of the branched coaxial cables. The open-circuit detecting circuit 23 applies a direct-current voltage to the coaxial cable selected by the changeover switch 22 through a constant-current source 203, and detects whether an open-circuit occurs to the coaxial cable by determining whether a voltage of the coaxial cable is grounded. The control unit 26 controls the changeover switch 22 to perform selection/switching, and controls the open-circuit detecting circuit 23 to perform open-circuit detection synchronously with the selection/switching control over the changeover switch 22.
Abstract:
In a capsule endoscope illuminating units are disposed around an image capturing unit in such a manner that an optical axis of the illuminating units do not intersect with an optical axis of the observation unit, and illumination areas of the illuminating units overlap at substantially a central portion of an image capturing area of the image capturing unit.
Abstract:
An intra-subject position detection system includes a subject insertable device introduced into a subject, moving through the subject; and including a magnetic field generator that generates a magnetostatic field. The system also includes a position detecting device arranged outside the subject and obtaining position information of the subject insertable device inside the subject. The position detecting device also includes a magnetic field detector that is arranged on the subject at a time of use and detects a strength of the magnetostatic field output from the magnetic field generator; a reference sensor that derives a position of the magnetic field detector relative to a reference position on the subject; and a position deriving unit that derives a position of the subject insertable device inside the subject based on the magnetic field strength and the position of the magnetic field detector.