Sra
Jasbir Sra, Pewaukee, WI US
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20120071751 | 3D Model Creation of Anatomic Structures Using Single-Plane Fluoroscopy - A method for 3D reconstruction of the positions of a catheter as it is moved within a region of the human body, comprising: (a) ascertaining the 3D position of a point on a catheter for insertion in the body region; (b) acquiring a fixed angle, single-plane fluoroscopic image of the body region and of the catheter; (c) transferring the image data and catheter-point position to a computer; (d) determining the 2D image coordinates of the point on the catheter; (e) changing the length of catheter insertion by a measured amount; (f) thereafter acquiring a further single-plane fluoroscopic image of the body region and the catheter from the same angle, transferring the length change and additional image data to the computer, and determining the 2D image coordinates of the point on the catheter; (g) computing the 3D position of the catheter point; and (h) repeating steps e-g plural times. A 3D model is constructed by assembling the plural 3D positions of the point within the body region into a 3D model of the region. | 03-22-2012 |
20130243153 | Automatically Determining 3D Catheter Location and Orientation Using 2D Fluoroscopy Only - A method for automatically determining the 3D position and orientation of a radio-opaque medical object in a living body using single-plane fluoroscopy comprising capturing a stream of digitized 2D images from a single-plane fluoroscope ( | 09-19-2013 |
20140288451 | Multi-Channel Cardiac Measurements - An automatic method of determining local activation time (LAT) in multi-channel cardiac electrogram signals including a ventricular channel, a reference channel and a mapping channel wherein selection of at least one of a reference-channel activation and a mapping-channel activation is based on one or more activation times in the ventricular channel. | 09-25-2014 |
Jasbir S. Sra, Pewaukee, WI US
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20100268068 | METHOD AND APPARATUS FOR MEDICAL INTERVENTION PROCEDURE PLANNING AND LOCATION AND NAVIGATION OF AN INTERVENTION TOOL - A system and method for a medical intervention procedure within a cardiac chamber having an imaging system to obtain image data of the cardiac chamber and to create a 3D model from that image data, an interventional system to register the 3D model with a real-time image of the cardiac chamber and to display the 3D model, and an interventional tool positioned in the cardiac chamber to be displayed upon the interventional system and to be navigated in real-time over the registered 3D model. Preferably, the method and system also includes a storage medium to store the 3D model and wherein the interventional system receives the stored 3D model to register with the real-time image of the cardiac chamber. | 10-21-2010 |
Jasbir Singh Sra, Pewaukee, WI US
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20090208079 | METHOD FOR GENERATING A REGISTERED IMAGE RELATIVE TO A CARDIAC CYCLE AND A RESPIRATORY CYCLE OF A PERSON - A method for generating a registered image relative to a cardiac cycle and a respiratory cycle of a person is provided. The method includes generating a plurality of 2-D images of an anatomical region of the person. The method further includes generating a 3-D model of the anatomical region of the person. The 3-D model is associated with a predetermined phase of the cardiac cycle and a predetermined phase of the respiratory cycle. The method further includes selecting a first 2-D image from the plurality of 2-D images associated with the predetermined phase of the cardiac cycle and the predetermined phase of the respiratory cycle. The method further includes generating the registered image of the anatomical region utilizing the first 2-D image and the 3-D model. The method further includes storing the registered image in a memory device. | 08-20-2009 |
Randeep Sra, Naperville, IL US
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20150272807 | EXOSKELETON FOR ESSENTIAL TREMOR AND PARKINSON'S DISEASE - An exoskeleton device having embedded software for moderating involuntary movements, for example, of a patient afflicted with Parkinson's Disease or Essential Tremor, the exoskeleton comprising at least one cuff fitted to the patient, a motor configured to drive the cuff to apply torque to an arm of the patient enclosed in the cuff, gyroscopes and accelerometers configured to detect movement of the arm and to generate signals indicative of the movement, digital filters for distinguishing portions of the signal reflecting voluntary movement from portions of the signal reflecting involuntary movement, and a control system configured to operate the motors such that the torque applied to the arm of the patient counters the involuntary movement but permits voluntary movement. | 10-01-2015 |
Suvrit Sra, Tubingen DE
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20130242129 | METHOD AND DEVICE FOR RECOVERING A DIGITAL IMAGE FROM A SEQUENCE OF OBSERVED DIGITAL IMAGES - A computer-implemented method for recovering a digital image (x) from a sequence of observed digital images (y | 09-19-2013 |