Patent application number | Description | Published |
20080207999 | Endoscopic Capsule - An endoscopy capsule has a capsule housing containing at least one magnetic element that interacts with an extracorporeally applied magnetic field to magnetically navigate the endoscopy capsule within a body lumen of a patient. The capsule housing has a tube connected thereto that is composed of a flexible, non-rigid material, i.e., of insufficient rigidity to feed the capsule housing in the body lumen. The tube is provided with a feed path for providing any of a liquid agent, a gaseous agent, electrical power and data between the capsule housing an extracorporeal source. | 08-28-2008 |
20080262292 | Method and Device for Wireless Energy Transmission From a Magnet Coil System to a Working Capsule - In a method and device for wireless energy transmission between a magnetic coil system, having multiple excitation coils located outside of a patient, to a working capsule located in the patient, the working capsule has at least one induction coil, and a positioning device determines the position and orientation of the working capsule relative to the magnetic coil system. Using the position and orientation information, the magnetic coil system generates a first magnetic field that exerts a force on the working capsule at a location of the working capsule in the patient. The magnetic system also uses at least one of the position or the orientation to generate a second magnetic field for energy transmission to the working capsule at the location within the patient. | 10-23-2008 |
20080272873 | Coil System for Contact-Free Magnetic Navigation of a Magnetic Body in a Working Chamber - A magnetic body is displaceable in a contact-free manner in a working chamber by the use of a magnetic coil system composed of fourteen individually controllable coils. Three magnetic field components and five magnetic field gradients are produced. Apart from two individual coils in the coil system, the other coils, which may be saddle-shaped coils, are arranged on lateral tubular surfaces surrounding the working chamber. | 11-06-2008 |
20090105541 | ENDOSCOPIC CAPSULE - An endoscopy capsule contains an induction coil that is elongated along a longitudinal axis thereof, the endoscopy coil supplying power to components within the endoscopy capsule. A magnetic element in the endoscopy capsule has a magnetic dipole moment and interacts with an external magnetic field to navigate the endoscopy capsule within the body of a subject. The magnetic element is oriented so that the magnetic dipole element is aligned perpendicularly to the longitudinal axis of the induction coil. The endoscopy capsule has a cross-sectional area, in a plane having a normal aligned in the direction of the longitudinal axis of the induction coil, which contains both a cross-section through the magnetic element and a cross-section through the induction coil. The magnetic element has a length along the longitudinal axis of the induction coil so that the magnetic element projects beyond the induction coil at each end thereof. | 04-23-2009 |
20090155089 | Method and Control Unit for Operating a linear Compressor - A control unit for a linear compressor comprises a current sensor for detecting the current consumption of the linear compressor, a deflection sensor for detecting the deflection of the linear compressor and a control circuit for controlling the movement and detecting an overload state of the linear compressor using the current consumption which is detected by the current sensor and the deflection which is detected by the deflection sensor. | 06-18-2009 |
20090284189 | REGULATOR AND METHOD FOR REGULATING A CONTINUOUSLY VARIABLE ELECTRICAL GEARBOX - A continuously variable electrical gearbox has a rotatable rotor, a stator, an interrotor with a first and a second cage conducting first and second magnetisation currents. A regulator has a decoupling network connected in series with the gearbox having as input parameters: set values for the first and second magnetisation current levels, set values for the first and second torque between the rotor and interrotor and interrotor and stator and as output parameters: rotor current and stator current, a recording device for recording first and second magnetisation currents and a feedback system for feedback of first and second magnetisation currents as input parameters from the decoupling network. Rotor current and stator current are determined from the input parameters: set values for the first and second magnetisation current levels, set values for the first and second torque, first and second magnetisation currents are recorded and fed back to the decoupling network. | 11-19-2009 |
20090304525 | Linear Drive and Linear Compressor with Adaptive Output - An apparatus having at least one of a linear drive having a stator and a rotor configured for reciprocating movement therein along a drive axis between a first and a second rotor reversal point about a rotor zero position, and a linear compressor, having a piston housing and a compressor piston configured for reciprocating movement therein along a piston axis between a first and a second piston reversal point about a piston zero position and configured to be driven by the linear drive, wherein at least one of the rotor zero position and the piston zero position is adjustable. | 12-10-2009 |
20100047079 | Method for the Predictive Closed-Loop Control of a Linear Drive or of a Linear Compressor and Linear Drive or Linear Compressor Subject to Predictive Closed-Loop Control - A method for closed-loop control of a linear drive including a stator, a rotor configured for reciprocating movement along a drive axis therein, and a drive coil through which coil current flows, in particular for a linear compressor including a piston housing and a compressor piston configured for reciprocating movement along a piston axis therein, and driven by the linear drive wherein the coil current is subject to closed-loop control, the method including the steps of determining a target coil current and applying an actual coil current wherein the actual coil current and the target coil current are substantially the same value. | 02-25-2010 |
20100204566 | MEDICAL DEVICE GUIDING SYSTEM, MEDICAL DEVICE GUIDING METHOD, AND METHOD FOR CREATING LOOK-UP TABLE TO BE USED IN MEDICAL DEVICE GUIDING SYSTEM - 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 around 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. | 08-12-2010 |
20100274086 | POSITION CONTROL OF MEDICAL APPLIANCES IN THE HUMAN BODY BY MEANS OF PHASE DIFFERENCE MEASUREMENT - A system measures a change in position of a medical appliance, such as an endoscopy capsule. A device uses this measurement in order to influence the position of the medical appliance. The medical appliance sends a signal that is received by a multiplicity of spatially separate receiving devices. The time profile of the phase differences between the received signals and a reference signal provides an indication of whether the medical appliance has moved. In the event of a movement being detected, a maneuvering device can be regulated by a regulating means in such a way that the maneuvering device generates forces and/or torques and applies them to the medical appliance to counteract the detected movement. | 10-28-2010 |
20110046443 | METHOD FOR GUIDING A CAPSULE ENDOSCOPE AND ENDOSCOPE SYSTEM - In a method and system for guiding a capsule endoscope, the capsule endoscope contains a rotation sensor that measures a rotary position of the endoscope capsule about at least one fixed capsule axis. A control unit calculates a rotary position of the endoscope capsule from a mechanical movement model, measures the rotary position of the endoscope capsule by means of the rotation sensor, compares the measured rotary position with a rotary position calculated for an essentially identical point in time, and adapts the mechanical movement model on the basis of the comparison. | 02-24-2011 |
20110054254 | COIL ARRANGEMENT FOR GUIDING A MAGNETIC ELEMENT IN A WORKING SPACE - A coil arrangement for contact-free guidance of a magnetic element such as an endoscopy capsule, has a number of individual coils arranged in pairs by which the components of a guidance field are generated. By arranging the individual coils to include coils corresponding to blades at an exterior of a cylindrical surface, the number of degrees of freedom required for guidance can be obtained with fewer individual coils and fewer power amplifiers to operate the coils. | 03-03-2011 |
20110282165 | CAPSULE MEDICAL DEVICE GUIDANCE SYSTEM - A system includes a capsule body having a casing introduced into a subject to perform, in liquid, examination of or treatment on the interior of the subject, the casing containing a permanent magnet, a mass of the casing excluding the magnet being set to be less than a product of a volume of the casing and a density of the liquid; a magnetic field generator that generates a magnetic attraction for the magnet to guide the capsule body; and a magnetic field generation device that controls the magnetic field generator to generate the magnetic attraction by setting a maximum value of the generated magnetic attraction vertically upward to the capsule body, to be equal to a maximum value of the generated magnetic attraction vertically downward to the capsule body, and by setting the maximum values to be less than a value obtained by multiplying a mass of the magnet by a gravitational acceleration. | 11-17-2011 |
20110316656 | COIL ASSEMBLY FOR GUIDING A MAGNETIC OBJECT IN A WORKSPACE - A coil assembly for guiding a magnetic object, such as an endoscopy capsule, in a workspace, wherein the magnetic object exhibits a magnetic dipole, includes different versions of coil assemblies having a number of individual coils and corresponding activation units for feeding current to the respective coils. The coil arrangement can have exactly eleven individual coils and eight power amplifiers, nine individual coils and seven power amplifiers, eight individual coils with six or seven power amplifiers, six individual coils with five power amplifiers, and five individual coils with five power amplifiers. | 12-29-2011 |
20120004756 | Control of an Expanded Drying Section of a Paper Machine - In order to achieve an improved or optimized operation mode of an “expanded drying section” of a paper machine—having the “actual” drying section, separated, if applicable, into pre-drying and post-drying sections with a size press located therebetween, a steam and condensate system, an exhaust air heat recovery system, a wet press and the white water—a model that includes the above system components is proposed, with which mass and energy balances for the system components as well as the specific energy consumption of the drying section are calculated, based on values for parameters relevant for the drying process. | 01-05-2012 |
20120022328 | SEPARATING AN ENDOSCOPY CAPULE FROM A SURFACE OF A LIQUID - A magnetically guided endoscopy capsule is separated from the surface of water with the aim of immersing the capsule completely in water, using the least possible magnetic force. A brief force curve (F_mag(t)) is thereby automatically generated on the capsule by a solenoid system, by one or more force pulses. Assuming that the capsule floats on the water surface at the start of the force curve, a force curve is applied generating an odd number of force pulses having a step profile. Each odd force pulse brings about at least a partial immersion of the endoscopy capsule in the liquid, and each even force pulse bring about at least a partial emersion of the endoscopy capsule out of the liquid. | 01-26-2012 |
20120232337 | SOLENOID SYSTEM FOR MAGNETICALLY GUIDED CAPSULE ENDOSCOPY - A solenoid system for magnetically guided capsule endoscopy, has the following components arranged under a patient table which defines a flat plane: a central coil with normal direction being perpendicular to the flat plane, and four coil pairs arranged in the form of a cross around the central coil with respect to the flat plane. Each pair includes two single coils, the normal directions of which are parallel to the flat plane and offset by 90 degrees in relation to each other. | 09-13-2012 |
20130249485 | DC CHARGING STATION FOR A BATTERY OF AN ELECTRIC VEHICLE - A DC voltage source, for example an AC/DC converter, has an output producing a controllable DC voltage for a DC charging station to charge the battery of an electric vehicle. A voltage balancing unit is connected between the output of the converter and the output terminal of the DC charging station. The voltage balancing unit has a controllable switch by which the connection between voltage source or converter and battery can be made or broken as desired. The switch is controlled as a function of the voltage on the input and output side of the voltage balancing unit to the effect that the switch breaks the connection before and while the battery is being connected to the DC output terminal, and makes a connection only when the voltage on the input side of the voltage balancing unit corresponds substantially to the voltage on the output side of the voltage balancing unit. | 09-26-2013 |
20130307477 | CHARGING STATION FOR WIRED CHARGING OF ELECTRIC VEHICLE - A charging post at a charging station for charging an electric vehicle can be lowered into the ground by a lifting device such that it does not become a physical obstacle or optically impair the environment and is not damaged by external influences. | 11-21-2013 |
20140300185 | CIRCUIT ARRANGEMENT - A circuit arrangement has a bidirectional AC/DC converter connected to a first side of a DC/DC converter at a DC side of the AC/DC converter via first electric switch. The AC/DC converter is connected to a second side of the DC/DC converter at the DC side of the AC/DC converter via a second electric switch. The first side of the DC/DC converter is connected to a third electric switch and can be connected to an energy storing device via said switch. The second side of the DC/DC converter is connected to a fourth electric switch and can be connected to an energy generating device via said switch. The AC/DC converter can be connected to the electric supply grid at the AC side of the AC/DC converter. A control device controls the switches and the converters. | 10-09-2014 |
20150028870 | Two-Channel Magnetic Resonance Imaging - A two-channel magnetic resonance tomography system is provided with a regulation circuit for an amplification system in order to be able to take into account different load situations of the MRI system in a flexible and efficient manner. It is thus possible to improve the MRI measurements greatly if the MRI system is set to the respective load situation beforehand by an idle state measurement. The adaptation may optionally also be carried out during the MRI measurement. Therefore, a multiplicity of completely different load situations may be taken into account in an optimized manner by the regulation circuit. | 01-29-2015 |