| 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 |
