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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Li; Dun Alex
Address:
Salem, NH
No. of patents:
9
Patents:












Patent Number Title Of Patent Date Issued
8213693 System and method to track and navigate a tool through an imaged subject July 3, 2012
A system to navigate an imaged subject in relation to an acquired image of the imaged subject is provided. The system includes an intracardiac echocardiography (ICE) imaging system having a transducer operable to acquire image data so as to create a four-dimensional image model of the
8057397 Navigation and imaging system sychronized with respiratory and/or cardiac activity November 15, 2011
An imaging and navigation system is disclosed herein. The imaging and navigation system includes a computer and an ultrasonic imaging device disposed at least partially within an ultrasound catheter. The ultrasonic imaging device is connected to the computer and is adapted to obtain a
8022990 Systems and methods for on-line marker-less camera calibration using a position tracking system September 20, 2011
Certain embodiments of the present invention provide methods and systems for calibration of an imaging camera or other image acquisition device. Certain embodiments include characterizing a transformation from a coordinate system of an imager to a coordinate system of a first sensor
7986826 Method and system for correction of fluoroscope image distortion July 26, 2011
Certain embodiments of the present invention provide for a system and method for modeling S-distortion in an image intensifier. In an embodiment, the method may include identifying a reference coordinate on an input screen of the image intensifier. The method also includes computing
7933730 Method and system for restoration of a navigation data loss in image-guided navigation April 26, 2011
A method for restoring navigation failure information in a fluoroscopy-based imaging system is disclosed. The method includes obtaining a plurality of receiver navigation information using a calibration target rigidly attached to a supporting member of the imaging system. The calibra
7909767 Method for minimizing tracking system interference March 22, 2011
A method for minimizing tracking system interference caused by a motor driven ultrasonic imaging device is disclosed herein. The method includes providing an ultrasonic imaging device adapted to obtain a generally real time three-dimensional image. The ultrasonic imaging device includes
7658541 Apparatus for universal electromagnetic navigation target for fluoroscopic systems February 9, 2010
Certain embodiments of the present invention provide a system for an electromagnetic shield assembly for use with C-arms. In an embodiment, the system may include a ring shield configured to encompass an x-ray detector. The ring shield may have a first window opening to receive x-ray
7621169 Systems and methods for integrating a navigation field replaceable unit into a fluoroscopy syste November 24, 2009
Certain embodiments of the present invention provide methods and systems for imaging system calibration using a field replaceable unit. Certain embodiments provide a field replaceable unit for imaging system calibration. The unit includes an array of radio opaque fiducials arranged f
7532997 Electromagnetic tracking using a discretized numerical field model May 12, 2009
A method for electromagnetic tracking the position and orientation of an object using a discretized numerical field model, rather than the conventional analytical dipole model. The method including the steps of determining a discretized numerical field model associated with a particu










 
 
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