A position detection system includes: a capsule medical device configured to generate a position-detecting magnetic field; a plurality of detection coils arranged outside a subject; and a processor including hardware. The processor is configured to correct a magnetic field component caused by a first magnetic field generation material with respect to each of measurement values of detection signals output from the detection coils, the first magnetic field generation material being arranged inside a space that the position-detecting magnetic field generated by the capsule medical device present inside a detection target region is reachable, the detection target region being a region in which a position of the capsule medical device is detectable, the first magnetic field generation material being configured to generate a magnetic field due to action of the position-detecting magnetic field.

A magnetically-guided catheter includes a tip positioning magnet in the distal end portion thereof configured to interact with externally applied magnetic fields for magnetically-guided movement. The magnet may be geometrically asymmetric, for example, a C-shape in radial cross-section, so as to allow side-loading of an irrigation fluid lumen and other wire(s) or lines during fabrication. The outer shaft includes a plurality of segments, including a generally soft segment at the distal end thereof for magnetically-guided navigation. The fluid lumen, which extends through the outer shaft, and further extends completely through the magnet for coupling to the ablation electrode irrigation fluid inlet, is constructed so that its mechanical properties (i.e., flexibility) substantially matches that of the outer shaft. The combination of the outer shaft, inner fluid lumen and positioning magnet has interoperability with a broad range of ablation tip assemblies.

An embodiment comprises and apparatus having an image capture device with an image axis and a gyroscope operable to indicate the orientation of the image axis. An embodiment of a capsule endoscopy system comprises an imaging capsule and an external unit. The imaging capsule may comprise an image capture device having an image axis and a gyroscope operable to indicate the orientation of the image axis. The external unit may comprise a gyroscope operable to indicate an orientation of a subject and a harness wearable by a subject and operable to align the gyroscope with the subject. The imaging capsule may send and image to an external unit for processing and display, and the external unit may provide for calculation of the image-axis orientation relative to the body.

An in vivo capsule has a cauterization element that may be deployed by physician while in vivo for cauterizing a lesion, such as bleeding. Energy is transferred from outside of the patient's body to the capsule and specifically to the ablating element, such as via a resonance circuit. Accordingly, it is the object of the present invention to provide a method and apparatus for precisely cauterizing or ablating tissue in-vivo. Embodiments of the invention may provide an in-vivo device having a cauterization or ablation element incorporated therein and a system and method for controlled navigation of the in-vivo cauterization device through a body lumen.

Apparatus, including a probe having an insertion tube and a section connected to the insertion tube. A camera is attached to the section and a magnetic field sensor coil, having a first coil axis of symmetry, is also attached with the first axis parallel to a camera direction of view. Another magnetic field sensor coil, which has a second coil axis of symmetry, is attached to the insertion tube with the second axis perpendicular to the camera direction of view. A processor receives signals generated by the coils and in response to signals received at a first time, identifies an initial orientation of an initial image produced by the camera. In response to signals received at a second, subsequent, time, the processor identifies a subsequent orientation of a subsequent image and rotates the subsequent image on a display so as to reorient the subsequent image to the initial orientation.

A capsule endoscope includes: a function-performing device configured to perform a function; a power source configured to supply power; a first inductor including a cored coil, the first inductor being configured to boost a voltage of the power and output a first voltage; a second inductor including an air-cored coil, the second inductor being configured to boost a voltage of the power and output a second voltage; a detector configured to detect a magnetic field applied from outside; and a controller configured to perform control to supply first power according to the first voltage to the function-performing device, when the magnetic field detected by the detector has a magnitude less than a threshold, and to supply second power according to the second voltage to the function-performing device, when the magnetic field detected by the detector has a magnitude not less than a threshold.

A capsule medical device guidance system includes: a capsule medical device including a permanent magnet and configured to be introduced into a subject; a magnetic field generator configured to generate a magnetic field to be applied to the capsule medical device; an operation input device configured to input operation information; and a processor including hardware. The processor is configured to: control the magnetic field generator, based on the operation information input from the operation input device, to change the magnetic field to change at least one of the position and the posture of the capsule medical device; obtain control information for the magnetic field generator in a state where forces acting on the capsule medical device are balanced before starting or when starting operation on the operation input device; and control the magnetic field generator by using the control information after the operation is finished.

A medical scope attachment device and system includes one or more expandable rings, each having a resilient main body and an inside diameter defining a central opening that corresponds to a dimension of a medical scope. One or more sets of opposing magnetic elements are disposed within each of the rings. The system also includes a ring attachment device having a shelf that is interposed between a pair of opposing electromagnets. The ring attachment device functioning to transition the expandable rings between an expanded and non-expanded state to receive an existing medical scope.

A capsule endoscope system includes a capsule endoscope and a receiving device. The capsule endoscope outputs execution command at a timing at which work instruction data is received when movement speed is low, and outputs the execution command at a timing at which output of the execution command is instructed when the movement speed is high. The receiving device generates the work execution condition data and the work instruction data based on operations of an operator, and transmits the work execution condition data and the work instruction data to the capsule endoscope.

A control device for a capsule endoscope is provided. The control device includes a balance arm device, a permanent magnet, a 2-DOF rotary platform and an examination bed. The bottom of the balance arm device is fixed, and the active end of the balance arm device connects with a boom. The 2-DOF rotary platform is fixed below the boom and the permanent magnet is located in the 2-DOF rotary platform. The examination bed is put below the 2-DOF rotary platform, and the area between the examination bed and the 2-DOF rotary platform is an examination area.