| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | WIRELESS ELECTROMAGNETIC TRACKING SYSTEM USING A NONLINEAR PASSIVE TRANSPONDER | EP04756507.2 | 2004-07-01 | EP1639527A2 | 2006-03-29 | ANDERSON, Peter, Traneus |
| A wireless electromagnetic tracking system using a nonlinear passive transponder (10, 100) is provided. The transponder (10, 100) employs a coil (50, 150) connected in parallel with a diode (40, 140). The transponder (10, 100) emits a response signal when an excitation signal is incident upon the coil (50, 150) of the transponder (10, 100). Inclusion of the diode (40, 140) in the transponder circuit introduces nonlinear characteristics into the waveform of the response signal emitted by the transponder (10, 100). The nonlinear characteristics can be varied by changing the capacitance level of the transponder circuit. The nonlinear characteristics of the response signal can be used to discern the response signal from the excitation signal when both signals are received at a receiver. The nonlinear characteristics can also be utilized in a system of encoding data that is to be transmitted from a transponder (10, 100) to a receiver. | ||||||
| 182 | Method of and system for tracking an object radiating a circularly or linearly polarized electromagnetic signal | EP79104305.2 | 1979-11-05 | EP0010774B1 | 1983-05-25 | Bielli, Paolo; Savini, Dario; De Padova, Salvatore |
| 183 | A CATHETER WITH ELECTROMAGNETIC POSITION SENSORS AND A LOCATION SYSTEM FOR CATHETERS AND GUIDE WIRES | EP12729203.5 | 2012-05-03 | EP2704631A1 | 2014-03-12 | CONDINO, Sara; FERRARI, Vincenzo; ALBERTI, Aldo; FERRARI, Mauro |
| Catheter (1) comprising a tubular body (3) to be introduced into a body cavity, and a plurality of electromagnetic position sensors (17, 19), each of which is positioned on a respective one of said catheter segments (7, 9), and is designed to generate, in response to an externally generated magnetic field, an electrical signal representative of the position and orientation of the respective catheter segment. Each of said electromagnetic position sensors has a substantially needle-shaped body having a longitudinal axis placed parallel to the longitudinal axis of the respective catheter segment, and is located at the wall of the respective catheter segment, eccentrically with respect to the longitudinal axis thereof. | ||||||
| 184 | SYSTEM AND METHOD FOR DYNAMIC METAL DISTORTION COMPENSATION FOR ELECTROMAGNETIC TRACKING SYSTEMS | US13142860 | 2009-11-10 | US20110270083A1 | 2011-11-03 | Eric Shen |
| A method and system for dynamic metal distortion compensation using an Electromagnetic Tracking System (EMTS) (10) using an electromagnetic field from an electromagnetic field generator (12). A plurality of fiducial markers (14) are provided, each having at least one electromagnetic sensor (26), the electromagnetic sensors oriented in a plurality of sensor orientations, and at least some of the sensors being located proximal to a volume of interest. The fiducial markers (14) are imaged to provide their position in image space. Position readings of the electromagnetic sensors (26) are monitored using the EMTS. A metal distortion correction function is calculated by comparing the positions of the fiducial markers in image space to the positions of the electromagnetic sensors. A medical device (16) moving through the volume of interest is also tracked using the EMTS, and the distortion correction function is applied to medical device position readings to compensate for the distortion. | ||||||
| 185 | System and method for hemisphere disambiguation in electromagnetic tracking systems | US10669025 | 2003-09-23 | US20050062469A1 | 2005-03-24 | Peter Anderson |
| An electromagnetic tracking system includes a transmitter assembly having a transmitter coil trio, a receiver assembly having a receiver coil trio, and a single coil mounted on one of the receiver assembly and the transmitter assembly. The single coil is positioned a fixed and known distance away from one of the receiver coil trio and the transmitter coil trio. When the receiver assembly is moved relative to the transmitter assembly, relative motion between at least two of the transmitter coil trio, the receiver coil trio and the single coil is asymmetrical, thereby generating different magnetic fields therebetween. The sensed magnetic field, or mutual inductances, between the transmitter assembly and the receiver assembly is different at each position. Thus, each position within a detectable area of the system is distinguishable. | ||||||
| 186 | ELECTROMAGNETIC RECEIVER TRACKING AND REAL-TIME CALIBRATION SYSTEM AND METHOD | US14678228 | 2015-04-03 | US20150285612A1 | 2015-10-08 | Philip MILES; Jason BERRINGER |
| An electromagnetic (EM) receiver system for measuring EM signals. The EM receiver system includes a survey EM transmitter for generating survey EM signals within a first frequency range; a tracking EM transmitter for generating tracking signals within a second frequency range; and a receiver section including a receiver that measures both the survey EM signals and the tracking signals. | ||||||
| 187 | METHOD AND SYSTEM FOR CHARACTERIZING AND VISUALIZING ELECTROMAGNETIC TRACKING ERRORS | US13582062 | 2011-02-21 | US20120323111A1 | 2012-12-20 | Ameet Kumar Jain; Mohammad Babak Matinfar; Raymond Chan; Vijay Parthasarthy; Douglas A. Stanton |
| A calibration/surgical tool (90, 160) includes an electromagnetic sensor array (30) of two or more electromagnetic sensors in a known geometrical configuration. Electromagnetic tracking errors are characterized by a mapping of pre-operative absolute and relative errors based on a movement of a calibrated calibration/surgical tool (90, 160) through a pre-operative electromagnetic field. Using statistical mapping, a desired absolute error field (46) is measured either in the clinic as the part of daily quality control checks, or before the patient comes in or in vivo. A resulting error field (46) may be displayed to the physician to provide clear visual feedback about measurement confidence or reliability of localization estimates of the absolute errors in electromagnetic tracking. | ||||||
| 188 | System and method for software configurable electromagnetic tracking | US10670054 | 2003-09-24 | US20050065433A1 | 2005-03-24 | Peter Anderson |
| Certain embodiments of the present invention provide a system and method for software configurable electromagnetic tracking. Certain embodiments of the system include a transmitter and/or a receiver for measuring a position in a coordinate system. The system also includes tracker electronics for determining position of the transmitter and/or receiver using information from the transmitter and/or receiver. The tracker electronics are configurable for a plurality of tracking system architectures. The tracker electronics may generate a processing scheme for a tracking system architecture. Additionally, the tracker electronics may simultaneously support a plurality of tracking system architectures. The tracker electronics may be modular, configurable tracker electronics. The tracker electronics may use software to generate support for a plurality of tracking system architectures. | ||||||
| 189 | Wireless electromagnetic tracking system using a nonlinear passive transponder | US10612569 | 2003-07-02 | US20050012597A1 | 2005-01-20 | Peter Anderson |
| A wireless electromagnetic tracking system using a nonlinear passive transponder is provided. The transponder employs a coil connected in parallel with a diode. The transponder emits a response signal when an excitation signal is incident upon the coil of the transponder. Inclusion of the diode in the transponder circuit introduces nonlinear characteristics into the waveform of the response signal emitted by the transponder. The nonlinear characteristics can be varied by changing the capacitance level of the transponder circuit. The nonlinear characteristics of the response signal can be used to discern the response signal from the excitation signal when both signals are received at a receiver. The nonlinear characteristics can also be utilized in a system of encoding data that is to be transmitted from a transponder to a receiver. | ||||||
| 190 | Automatic identification of tracked surgical devices using an electromagnetic localization system | US11708159 | 2007-02-19 | US20080200927A1 | 2008-08-21 | Steve Hartmann; Jason Tipton |
| A method and apparatus for identifying a member used in a navigation system. The navigation system can determine the identification of an instrument via an input. The input can be substantially automatic when an instrument is introduced into the navigation system field or assembly. | ||||||
| 191 | Electromagnetic tracking system and method using a three-coil wireless transmitter | US10869396 | 2004-06-16 | US07015859B2 | 2006-03-21 | Peter Traneus Anderson |
| Certain embodiments of the present invention provide a system and method for electromagnetic tracking using a three-coil wireless transmitter. The electromagnetic tracking system includes an instrument manipulated by a user to perform a task, a wireless transmitter for broadcasting a wireless signal, a receiver assembly for receiving the wireless signal, and electronics for determining positioning information for the instrument based on a relationship between the receiver assembly and the wireless transmitter. In an embodiment, the wireless transmitter includes a wireless transmitter coil trio. In an embodiment, the receiver assembly includes two receiver coil trios. | ||||||
| 192 | Electromagnetic tracking system and method using a three-coil wireless transmitter | US10869396 | 2004-06-16 | US20050104776A1 | 2005-05-19 | Peter Anderson |
| Certain embodiments of the present invention provide a system and method for electromagnetic tracking using a three-coil wireless transmitter. The electromagnetic tracking system includes an instrument manipulated by a user to perform a task, a wireless transmitter for broadcasting a wireless signal, a receiver assembly for receiving the wireless signal, and electronics for determining positioning information for the instrument based on a relationship between the receiver assembly and the wireless transmitter. In an embodiment, the wireless transmitter includes a wireless transmitter coil trio. In an embodiment, the receiver assembly includes two receiver coil trios. | ||||||
| 193 | Automatic Identification Of Tracked Surgical Devices Using An Electromagnetic Localization System | US15868658 | 2018-01-11 | US20180125604A1 | 2018-05-10 | Steven L. Hartmann; Jason Tipton |
| A method and apparatus for identifying a member used in a navigation system. The navigation system can determine the identification of an instrument via an input. The input can be substantially automatic when an instrument is introduced into the navigation system field or assembly. | ||||||
| 194 | Method and system for characterizing and visualizing electromagnetic tracking errors | US13582062 | 2011-02-21 | US09165114B2 | 2015-10-20 | Ameet Kumar Jain; Mohammad Babak Matinfar; Raymond Chan; Vijay Parthasarthy; Douglas A. Stanton |
| A calibration/surgical tool includes an electromagnetic sensor array of two or more electromagnetic sensors in a known geometrical configuration. Electromagnetic tracking errors are characterized by a mapping of pre-operative absolute and relative errors based on a movement of a calibrated calibration/surgical tool through a pre-operative electromagnetic field. Using statistical mapping, a desired absolute error field is measured either in the clinic as the part of daily quality control checks, or before the patient comes in or in vivo. A resulting error field may be displayed to the physician to provide clear visual feedback about measurement confidence or reliability of localization estimates of the absolute errors in electromagnetic tracking. | ||||||
| 195 | Automatic Identification Of Tracked Surgical Devices Using An Electromagnetic Localization System | US13560483 | 2012-07-27 | US20120296203A1 | 2012-11-22 | Steve Hartmann; Jason Tipton |
| A method and apparatus for identifying a member used in a navigation system. The navigation system can determine the identification of an instrument via an input. The input can be substantially automatic when an instrument is introduced into the navigation system field or assembly. | ||||||
| 196 | Automatic identification of tracked surgical devices using an electromagnetic localization system | US11708159 | 2007-02-19 | US08233963B2 | 2012-07-31 | Steve Hartmann; Jason Tipton |
| A method and apparatus for identifying a member used in a navigation system. The navigation system can determine the identification of an instrument via an input. The input can be substantially automatic when an instrument is introduced into the navigation system field or assembly. | ||||||
| 197 | RFID Transponder Used for Instrument Identification in an Electromagnetic Tracking System | US12018632 | 2008-01-23 | US20090184825A1 | 2009-07-23 | Peter Traneus Anderson |
| A system and method for instrument identification in an electromagnetic tracking system. The system and method comprising at least one electromagnetic transmitter and receiver assembly; at least one medical device or instrument removably coupled to the at least one electromagnetic transmitter or receiver assembly; and an RFID transponder attached to the medical device or instrument. The RFID transponder is programmed with data including a unique identifier for identifying the medical device or instrument it is attached to. The at least one electromagnetic receiver or transmitter assembly is configured to read data including the unique identifier from the RFID transponder for identifying the medical device or instrument removably coupled to the to the at least one electromagnetic transmitter or receiver assembly. | ||||||
| 198 | AC MAGNETIC TRACKING SYSTEM WITH NON-COHERENCY BETWEEN SOURCES AND SENSORS | US12017392 | 2008-01-22 | US20080120061A1 | 2008-05-22 | Robert Higgins; Herbert Jones; Allan Rodgers |
| In an AC magnetic tracker one or more multi-axis field sources, each operating at a different frequency, or frequency set, are detected and tracked in three-dimensional space, even when wireless or otherwise not physically connected to the tracking system. Multiple sources can be tracked simultaneously as they each operate with their own unique detectable set of parameters. The invention not only provides the ability to uniquely identify one or more sources by their frequencies, but also to synchronize with these frequencies in order to measure signals that then allow tracking the position and orientation (P&O) of the source(s). Further, these sources need not be present at the time of system start-up but can come and go while being detected, discriminated and tracked. It also should be noted that application of such systems in multiples with more sensors not synchronized to a source or sources also could be employed to give the reverse appearance of a known source phase and incoherency with the sensors. | ||||||
| 199 | Electromagnetic tracking system and method using a single-coil transmitter | US10611112 | 2003-07-01 | US07158754B2 | 2007-01-02 | Peter Traneus Anderson |
| Certain embodiments of the present invention provide a system and method for electromagnetic tracking using a single-coil transmitter. The system includes a single coil transmitter emitting a signal, a receiver receiving a signal from the single coil transmitter, and electronics for processing the signal received by the receiver. The electronics determine a position of the single coil transmitter. The transmitter may be a wireless or wired transmitter. The receiver may be a printed circuit board. In an embodiment, the receiver may be a twelve receiver circuit printed circuit board including single coils and/or pairs of coils. The electronics may determine position, orientation, and/or gain of the transmitter. | ||||||
| 200 | Electromagnetic tracking system and method using a single-coil transmitter | US10611112 | 2003-07-01 | US20050003757A1 | 2005-01-06 | Peter Anderson |
| Certain embodiments of the present invention provide a system and method for electromagnetic tracking using a single-coil transmitter. The system includes a single coil transmitter emitting a signal, a receiver receiving a signal from the single coil transmitter, and electronics for processing the signal received by the receiver. The electronics determine a position of the single coil transmitter. The transmitter may be a wireless or wired transmitter. The receiver may be a printed circuit board. In an embodiment, the receiver may be a twelve receiver circuit printed circuit board including single coils and/or pairs of coils. The electronics may determine position, orientation, and/or gain of the transmitter. | ||||||
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