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| Number | Title | Issue Date |
| 8180431 | Catheter with bendable tip A medical probe includes a flexible insertion tube, having a distal end for insertion into a body cavity of a patient, and a distal tip, which is disposed at the distal end of the insertion tube and is configured to be brought into contact with tissue in the body ca... | 05/15/2012 |
| 8180430 | Resolution of magnetic dipole ambiguity in position tracking measurements A method for position tracking includes using first and second field generators located at respective different first and second locations to generate respective first and second magnetic fields in a vicinity of first and second objects. The first and second fields ... | 05/15/2012 |
| 8141558 | Position dependent interference cancellation A method for position tracking includes receiving signals from a main position transducer at a distal end of a medical probe via wiring traversing the probe to a connector at a proximal end of the probe, for connection to a processor, which processes the signals to ... | 03/27/2012 |
| 8109922 | Orifice device having multiple channels and multiple layers for drug delivery An orifice device for delivering one or more drugs includes an inner member having a proximal end and a distal end; and a plurality of windings helically wound around the inner member. Each winding defines a separate layer and each winding includes at least one wire... | 02/07/2012 |
| 8085053 | Twisted-pair electrical cable testing Methods and systems for cable inspection operate by generating a relative motion between an electrical cable including multiple wires and a magnetic field. An electrical signal induced in the wires is measured responsively to the magnetic field. A variation in the e... | 12/27/2011 |
| 8082020 | Distortion-immune position tracking using redundant magnetic field measurements A method for tracking a position of an object includes using a field sensor associated with the object to measure field strengths of magnetic fields generated by two or more field generators, wherein a measurement of at least one of the field strengths is subject to... | 12/20/2011 |
| 8078286 | Techniques for minimizing radiofrequency-induced tissue heating Methods and systems are provided for wirelessly powering a medical device in a living subject using external radiofrequency energy. A radiofrequency driving unit outside the subject irradiates the medical device. A passive antenna is positioned outside the subject, ... | 12/13/2011 |
| 8075486 | Enhanced ultrasound image display Using specialized cardiac catheters for image acquisition, features of the heart are readily identifiable on an ultrasound image, based on a previously generated electrical activation map of the heart. The electrical activation map is automatically registered with t... | 12/13/2011 |
| 8046050 | Position sensing system for orthopedic applications A surgical tracking system includes a wireless position sensor, which is adapted to be implanted in a bone of a subject, and responsively to externally-applied magnetic fields within a working volume of the tracking system, to generate and transmit sensor signals in... | 10/25/2011 |
| 8046049 | Robotically guided catheter Apparatus is provided for use with a steerable catheter that includes a thumb control adapted to control a deflection of a distal tip of the catheter. The apparatus includes a robot, including an end-effector, adapted to be coupled to the thumb control, and a contro... | 10/25/2011 |
| 8000772 | Metal immunity in a reverse magnetic system A method for tracking an object includes fixing to the object a transmitter for transmitting a position-indicative magnetic field and providing a map of distortion of the position-indicative magnetic field caused by the object. A distorted magnetic field transmitted... | 08/16/2011 |
| 7996085 | Isolation of sensing circuit from pace generator In a system for sensing electrical signals within a living body, and specifically for tracking location of an object in the body using impedance measurements, an isolation circuit maintains isolation between the pacing and position sensing circuits, even while the h... | 08/09/2011 |
| 7996060 | Apparatus, method, and computer software product for registration of images of an organ using anatomical features outside the organ A method for imaging includes receiving a first three-dimensional (3D) image of a vicinity of an organ within a body of a subject and creating a geometrical model of a tubular structure in the first 3D image in the vicinity of the organ. An invasive probe is inserte... | 08/09/2011 |
| 7996059 | Esophagus imaging enhancement device A device for enhancing visualization of an esophagus when imaged by a visualization system includes a structure including material that is clearly visible when imaged by the visualization system. The structure is arranged, when inserted into the esophagus, to expand... | 08/09/2011 |
| 7996057 | Ultrasound catheter calibration with enhanced accuracy An apparatus for calibration of a probe that includes a magnetic position sensor and an acoustic imaging device has a rigid mechanical framework. One or more field generators, fixed to the framework, generate a magnetic field of known spatial characteristics. An aco... | 08/09/2011 |
| 7974680 | Hysteresis assessment for metal immunity Assessment apparatus is provided, including a set of one or more radiators, which is adapted to generate an energy field at at least one fundamental frequency. A receiving sensor is adapted to generate a first signal responsive to the energy field when an interferin... | 07/05/2011 |
| 7962195 | Model-based correction of position measurements Visualization of a probe when impedance-based measurement technology is being used is improved by stabilizing a displayed image of the probe or catheter. Using a model of reasonable probe shapes and a matching algorithm, an erroneous probe image is adjusted so that ... | 06/14/2011 |
| 7945309 | Dynamic metal immunity The disclosure concerns position-sensing apparatus, having radiators which generate electromagnetic energy fields and a position sensor which generates sensor signals responsive to the energy fields. Reference elements are placed at respective positions near the sen... | 05/17/2011 |
| 7942920 | Stent with nested fingers for enhanced vessel coverage A stent having a lattice and defining a substantially cylindrical configuration has a first open end and a second open end. The lattice has a collapsed configuration and an expanded configuration and a plurality of adjacent hoops. Each hoop has a plurality of adjace... | 05/17/2011 |
| 7924000 | Miniature coils on core with printed circuit A method for producing a coil assembly includes overlaying printed circuit traces on a core. The traces include terminals for coupling to conductive connections on a base on which the coil assembly is to be mounted. Two or more wires are wrapped around the core so a... | 04/12/2011 |
| 7918884 | Stent for treatment of bifurcated lesions A stent includes a lattice defining a substantially cylindrical configuration having a proximal end portion and a distal end portion, and a middle portion between the proximal end and the distal end. The lattice being moveable from a crimped state to an expanded sta... | 04/05/2011 |
| 7918850 | Lesion assessment by pacing Monitoring intracardiac ablation progress in near real time is accomplished by evaluating capture of a pacing signal while ablation energy is concurrently directed to a target site. Sufficiency of ablation is indicated by failure of signal capture at a maximum prede... | 04/05/2011 |
| 7918793 | Synchronization of ultrasound imaging data with electrical mapping An image of an electro-anatomical map of a body structure having cyclical motion is overlaid on a 3D ultrasonic image of the structure. The electro-anatomical data and anatomic image data are synchronized by gating both electro-anatomical data acquisition and an ana... | 04/05/2011 |
| 7911754 | Detection of current leakage through opto-switches Apparatus for testing an opto-switch includes a first sense resistor coupled between a power source and an input of the opto-switch, and a second sense resistor coupled to an output of the opto-switch. A test circuit is coupled to sense a first current flowing throu... | 03/22/2011 |
| 7907994 | Automated pace-mapping for identification of cardiac arrhythmic conductive pathways and foci Ventricular tachycardia signals are induced in a living subject. Pace-mapped signals are then obtained from multiple points within the ventricle, and automatically compared numerically with the induced signals. Recognition of a high degree of cross correlation betwe... | 03/15/2011 |
| 7904143 | Binary logistic mixed model for complex fractionated atrial electrogram procedures Methods and systems are provided for locating arrhythmogenic cardiac focus. A training set of electrical signal data is acquired and automatically analyzed to identify CFAE locations. The data representing the CFAE locations are and subjected to determinations of me... | 03/08/2011 |
| 7894885 | Coherent signal rejection in ECG A method for monitoring an electrocardiogram (ECG) signal of a subject, includes digitally sampling an average signal from at least a first ECG electrode, determining an average interference frequency, and digitally sampling and buffering a raw ECG signal from at le... | 02/22/2011 |
| 7848789 | Hybrid magnetic-base and impedance-based position sensing A position sensing system includes a probe adapted to be introduced into a body cavity of a subject. The lasso-shaped probe includes a magnetic field transducer in the rigid section proximal to the flexible lasso-shaped distal section which has at least one probe el... | 12/07/2010 |
| 7848787 | Relative impedance measurement A method for calibrating impedance includes coupling at least first, second, and third electrodes at respective locations to a surface of a body of a subject. A first current passing through the body between the first and second body-surface electrodes is measured, ... | 12/07/2010 |
| 7877128 | Simulation of invasive procedures A method for pre-planning and performing a cardiac procedure on a heart includes acquiring an image or map of the heart; displaying the image or map of the heart; marking at least one feature on the image or map; calculating dimensions of the at least one feature; i... | 01/25/2011 |
| 7874987 | Targets and methods for ultrasound catheter calibration A method for calibrating an ultrasound probe includes directing the probe to receive ultrasonic waves reflected from a target that includes one or more linear elements, which are arranged to intersect the beam plane of the probe at respective intersection points. Si... | 01/25/2011 |
| 7869865 | Current-based position sensing A method for position sensing includes inserting a probe comprising at least one electrode into a body of a subject, and passing electrical currents through the body between the at least one electrode and a plurality of locations on a surface of the body. Respective... | 01/11/2011 |
| 7860553 | Two-stage calibration of medical probes A probe for insertion into the body of a subject includes a sensor, a first microcircuit, which stores first calibration data with respect to the sensor, and a first connector at the proximal end of the probe. A probe adapter includes a second connector, which mates... | 12/28/2010 |
| 7855723 | Image registration using locally-weighted fitting A computer-implemented method for image registration includes accepting a three-dimensional (3-D) image of an organ. The image includes a first plurality of image points with respective image coordinates. A map defining a distribution of values of a physiological pa... | 12/21/2010 |
| 7854757 | Biodegradable intralumenal device A biodegradable intralumenal device that is capable of drug delivery. The device has circular hoops connected by one or more flexible links defining a substantially cylindrical configuration capable of having a closed configuration and an open configuration. Each ho... | 12/21/2010 |
| 7854733 | Phased-array for tissue treatment Apparatus is provided for ablating tissue of a patient by applying ultrasound energy to the tissue. The apparatus is typically delivered to the targeted tissue via a catheter and includes an ultrasound array, which is adapted to be driven as a phased array to concen... | 12/21/2010 |
| 7831076 | Coloring electroanatomical maps to indicate ultrasound data acquisition During acquisition of ultrasound data in a medical imaging procedure, three-dimensional model of a structure being imaged, e.g., an electroanatomical map, is co-displayed and visually marked, to indicate progress of data acquisition. The plane of intersection succes... | 11/09/2010 |
| 7816915 | Miniature coils on core with printed circuit A method for producing a coil assembly includes overlaying printed circuit traces on a core. The traces include terminals for coupling to conductive connections on a base on which the coil assembly is to be mounted. Two or more wires are wrapped around the core so a... | 10/19/2010 |
| 7809421 | Medical system calibration with static metal compensation A method for calibrating a medical system capable of generating a magnetic field for tracking a position of a medical device has various steps such as defining a mapping volume within the generated magnetic field and placing a metallic object within the mapping volu... | 10/05/2010 |
| 7785615 | Biodegradable medical implant with encapsulated buffering agent A medical device for placement at a site in a patient's body and for controlling pH levels at the site in the patient's body includes one or more structural components made of a first biodegradable and/or bioabsorbable material or, alternatively, one or more structu... | 08/31/2010 |
