Jostens, Inc.

St Jude Medical, Atrial Fibrillation Division, Inc

Sandia Corporation

Proto Labs, Inc.

Carlos D Carbonera

Yuriy Malinin

Daniel Richard Starks

Lev Abramovich Koyrakh

Eric Jon Voth

Timothy D Saarela

Jeffrey A Schweitzer

Michael J Frisch

Eric Steven Olson

Kenji Shimada

Eric Stephen Olson

Vasily Vylkov

Jiang Qian

Jason F Shepherd

Matthew L Staten

Richard Wells

Kevin Abernathy

Karl Merkley

Stefan Emilov Atev

Phillip Jason Schmidt

Robert Bannick

Frank Ledoux

A method of constructing a bounding box comprises: acquiring a set of sensed data points; adding, for each sensed data point, at least one calculated data point; and defining a bounding box containing the sensed and calculated data points. A method of identifying voxels in a voxel grid corresponding to a plurality of data points comprises: calculating, for each data point, a distance between it and each voxel; creating a subset of voxels comprising voxels having a distance from one data point that is less than a predetermined distance; creating another subset comprising those voxels that neighbor a voxel in the first subset; computing, for each voxel in the second subset, a distance between it and each voxel in the first subset; and identifying each voxel in the first subset that is a distance away from each voxel in the second subset that exceeds a predetermined distance.

Method and system for generating a multidimensional surface model of a geometric structure

Method and system for generating a multi-dimensional surface model of a geometric structure

A method of detecting dislodgement of a navigational reference for a localization system includes securing a reference catheter, including at least one reference localization element, at an initial reference location within a localization field. The positions of one or more of the reference localization elements are monitored for a perceived displacement that suggests that the reference catheter has become dislodged from the initial reference location (e.g., a displacement above a certain threshold, such as about 4 mm). The direction of this perceived displacement may then be further analyzed (e.g., compared to a predicted or most likely direction of displacement) to determine whether there has been an actual dislodgement of the reference catheter, and, if so, an appropriate signal (e.g., an audible or visual warning) may be generated. Upon dislodgement, guidance may be provided to aid the practitioner in restoring the reference catheter to its initial location.

Navigational reference dislodgement detection method and system

A method of operating a positioning system by registering a first coordinate system of a first positioning system in a second coordinate system of a second positioning system includes determining an interpolation function configured to register the first, non-orthonormal coordinate system in the second, orthonormal coordinate system. Fiducial pairs are collected by the respective positioning systems, each of which contain a respective coordinate in the respective coordinate system, both of which refer to the same physical point in three dimensional space. Establishing a working interpolation function involves an analysis of the fiducial pairs using a thin-plate spline algorithm. The method further includes repeatedly obtaining a first coordinate in the first coordinate system and determining a corresponding second coordinate in the second coordinate system in accordance with the interpolation function.

Catheter navigation using impedance and magnetic field measurements

A process for creating custom fixtures for parts that are to be CNC lathe machined is fully automatic and requires no human interaction. The customer's CAD file is computer analyzed to determine whether the part's dimensions fit within an available CNC lathe turning center for forming out of a cylindrical stock bar. The longitudinal axis is identified, and a set of tool paths is developed for cutting the part from two respective directions. A corresponding tool path is developed for CNC lathe cutting a bushing, preferably from the same bar stock, which generally represents the negative space around circular cross-sections of the part, in monotonically increasing diameters from the first end of the part. The bushing is then used to hold the part in the chuck during machining the second end of the part from the opposite direction.

Automated bushing construction for lathe turning

Bezel for a ring

A method of modeling may include obtaining an input file defining a first geometry, establishing a control related to the first geometry, adjusting the control, and using a thin plate spline transform to adjust the first geometry to a second geometry based on the control.

Modeling using thin plate spline technology

A system for visually rendering an elongate medical device in a body is provided. The system includes an electronic control unit configured to find a measured physical location for each of a plurality of position sensors on the elongate medical device. The electronic control unit is further configured to apply a spline function to each of the measured physical locations to determine a display location for each position sensor. The electronic control unit is further configured to interpolate between display locations of adjacent position sensors to identify display locations for portions of the elongate medical device between adjacent position sensors. The electronic control unit is further configured to generate image data for display of an image of the elongate medical device including the display locations of the position sensors and the display locations of the portions of the elongate medical device between adjacent position sensors.

System and method for rendering an image of an elongate medical device

A method for embellishment placement is provided. More specifically, an automated method for determining placement of embellishments for an item, such as a jewelry item, is provided. In one embodiment, the method comprises, determining and setting values for parameters, creating offsets along a portion of the item to be embellished, setting points along the offsets, randomizing the points, adding decorative features to the item, and eliminating points based on the parameter values. After points violating the parameter values have been eliminated, the remaining points comprise positions for embellishments.

System and method for embellishment placement

A method and system for generating and/or repairing surface models is provided. The method comprises acquiring data points corresponding to surface locations of a structure. The method further comprises generating a surface model of the structure based on the data points. The method further comprises adding additional data points to the point cloud formed by the acquired data points, and updating the model by constructing a surface model based on the added data points. The system comprises a processing apparatus configured to acquire data points corresponding to respective surface locations of a structure. The processing apparatus is further configured to generate a surface model of the structure based on the data points. The processing apparatus is further configured to add additional data points to the point cloud formed by the acquired data points, and update the surface model by constructing a surface model based on the added data points.

Method and system for generating and/or repairing a surface model of a geometric structure

A method for manufacturing a ring (i.e. class, championship, or affiliation) begins by receiving order data specifying a series of personalization elements, such as the addition of text and icon designs. A geometric model for each personalization item is constructed. To assemble text panels, the operating system provides font geometry for a desired TrueType font. Then a set of splines are created from the font geometry and are then tessellated to generate polyline sets of data, which are then spaced and mapped between two boundary curves. The personalization elements are then projected onto one of the model's 3D surfaces. A set of machining instructions for a milling machine is generated by obtaining a set of machining pattern strategies, generating a set of curves, projecting the toolpath onto the surface of the ring to calculate the 3D toolpath, and rotating it to a desired angle.

Automated engraving of a customized jewelry item

A method for embellishment placement may include receiving a parameter value defining a minimum distance between an embellishment and another feature of the item, defining points on the item, randomizing the points, eliminating one or more points based on the parameter value and leaving remaining points, the remaining points defining the positions for embellishments on the item, and manufacturing the item.

A method of creating a triangulated surfaces for generating machine readable instructions for customization is provided. The method comprises selecting text or symbols. The text or symbols are spaced. The text or symbols are mapped between first and second curves. Triangulated surfaces are generated from the mapped text or symbols. The triangulated surfaces are converted to machine readable instructions.

Growing community of inventors

Saint Paul, MN, United States of America

Carlos D Carbonera