摘要:
In a capsule medical apparatus guidance system (11) that includes a capsule body (2) that is inserted into a subject (1) together with a liquid introduced into the subject (1), includes a permanent magnet, and performs, in the liquid, examination or treatment of the interior of the subject1; and a magnetic field generation device (20) that is provided outside the subject (1), generates a magnetic attraction on the permanent magnet, and guides the capsule body (2), a mass of the capsule body (2) excluding the permanent magnet is less than a product of a volume of the capsule body (2) and a density of the liquid, and the magnetic field generation device (20) guides the capsule body (2) while a maximum value of a magnetic attraction that the magnetic field generation device (20) generates vertically upward on the capsule body (2) is equal to a maximum value of a magnetic attraction that the magnetic field generation device (20) generates vertically downward on the capsule body (2) and the maximum value of the magnetic attraction that is generated vertically upward or downward is less than a value that is obtained by multiplying a mass of the permanent magnet by a gravitational acceleration.
摘要:
The invention relates to a method for guiding a capsule endoscope, the endoscope capsule (25) of which comprises a rotation sensor (33, 34, 35) for measuring a rotary position of the endoscope capsule (25) about at least a fixed axis of the capsule, comprising the following steps: calculating a rotary position of the endoscope capsule (25) based on a mechanical movement model (S5); measuring a rotary position of the endoscope capsule (25) by means of a rotation sensor (33, 34, 35); comparing the measured rotary position with a rotary position (S6) that has been calculated at essentially the same time; adapting the mechanical movement model based on the comparison.
摘要:
An object is to enable accurate position detection with a less calculation amount and at high speed, without being affected by an unnecessary magnetic field resulting from a guiding coil or the like arranged around a position detection area of a capsule medical device. 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 41 1 to 41 n by a guiding coil 21 arranged around the position detection area of the medical device 10 due to an action of a first magnetic field generated by a magnetic field generator 30, at the time of position detection, and the second magnetic field is subtracted from the first magnetic field detected by the magnetic field sensors 41 1 to 41 n to calculate corrected magnetic-field information. Further, LUTs 52 x , 52 y , and 52 z that store beforehand numerical information having a correlation with the second magnetic field induced and generated at the positions of magnetic field sensors 41 1 to 41 n are used to calculate the second magnetic field, thereby enabling to reduce an amount of calculation performed each time and realize high speed processing.
摘要:
A method for controlling charging operations of a plurality of electric vehicles is proposed, which method comprises the following steps of: - providing a data record which comprises arrival times, departure times and charging energies of the electric vehicles during a first period; - determining a minimum total charging capacity (42) from the data record by means of a computing apparatus, wherein the minimum total charging capacity (42) determined makes it possible to approximately completely charge each electric vehicle between the arrival time (114) and the departure time (112) thereof; and - charging the electric vehicles with at most the minimum total charging capacity (42) determined during a second period following the first period.
摘要:
The invention relates to a charging station for charging an electric vehicle and to a charging post thereof. Said charging post can be lowered into the ground by means of a lifting device such that it is doesn't become a physical obstacle or optically impair the environment and is not damaged due to external influences.
摘要:
The invention relates to a coil system for the contactless magnetic navigation of a magnetic body (1) in a work space, wherein the coil system comprises a plurality of coils and a current controller for controlling the respective currents in the plurality of coils. In order to navigate the magnetic body (1) to a variably predeterminable position (P) in the work space, the current controller is designed such that the currents in the plurality of coils are such that the magnetic forces (F 1 , F 2 , F 3 , F 4 ) generated by the currents and acting upon the magnetic body (1) at multiple positions (P 1 , P 2 , P 3 , P 4 ) at the edge of a convex environment (Ω) around the predetermined position (P) are directed into the environment (Ω). The coil system according to the invention has the advantage that a movement of the magnetic body toward a spatial position is achieved without any mechanical movement of the coil system and without a positioning system for determining the position of the magnetic body. The coil system is utilized particularly in a medical device, wherein a magnetic body in the form of a probe is moved in the body of a patient. In this way, fast navigation of the probe in the patient’s body can be achieved without mechanical movements of the patient table or of the coil system.