Donald Andrew Nelson

US Patent:

8005659, Aug 23, 2011

Filed:

Jul 6, 2007

Appl. No.:

11/774223

Inventors:

Donald Nelson - Montgomery Village MD, US
Milan Ikits - Gaithersburg MD, US

Assignee:

Immersion Medical, Inc. - Baltimore MD

International Classification:

G06G 7/58

US Classification:

703 11, 703 6

Abstract:

A simulator for simulating a first object and a second object that is coupled to the first object is disclosed. The simulator models the first and second objects as a plurality of segments, with each segment having a plurality of nodes connected by one or more edges. The simulator then indexes each of the nodes and couples at least one node of the first object to a node of the second object. The indexing and coupling is based on the current simulated position of the first and second objects. The simulator then generates and solves a linear system of equations Ay=b from the indexing, and updates a position of each of the nodes. The simulator flow then dynamically re-indexes the nodes, and continues in a loop.

US Patent:

20090209978, Aug 20, 2009

Filed:

Feb 14, 2008

Appl. No.:

12/031642

Inventors:

Donald Douglas Nelson - Montgomery Village MD, US
Milan Ikits - Gaithersburg MD, US
Chih-Hao Ho - Reston VA, US
Kevin Kunkler - Frederick MD, US

International Classification:

A61B 17/10
D04G 5/00
B65H 69/04

US Classification:

606139, 289 12, 289 15, 289 181

Abstract:

Embodiments of systems, methods, and computer-readable media for real-time winding analysis for knot detection are disclosed. For example, one embodiment of the present invention includes a method having the steps of receiving a first wrapping signal indicating a first wrapping of the simulated thread around a second tool to create a first loop. The method further includes determining a first wrapping direction based at least in part on the first wrapping signal; receiving a first tightening signal indicating a pulling of a first end of the simulated thread through the first loop; determining a first half-hitch based at least in part on the first winding direction and the first tightening signal; and outputting the first half-hitch. In another embodiment, a computer-readable media includes code for a carrying out such a method.

Address:

1072 Linkside Ct, Apopka, FL 32712

VIN:

1G1PC5SH8B7155985

Make:

CHEVROLET

Model:

CRUZE

Year:

2011