MARK H GONZALEZ
Medical Practice at Taylor St, Chicago, IL

2012010, Apr 26, 2012

Oct 22, 2010

12/910597

Farid Amirouche - Highland Park IL, US
Mark H. Gonzalez - Chicago IL, US
Wayne Goldstein - Highland Park IL, US

A61F 2/38

623 202

The present disclosure relates to a device for repairing a patient patella. The device comprises a patellar trial piece and a patellar implant. The patellar trial piece has selectable variable weights to correct mechanical properties of the patient patella. Such mechanical properties to be corrected include a moment of inertia and/or a center of gravity of the patient patella. The patellar implant has embedded weights correspond to the variable weights of the patellar trial piece. In one embodiment, the patellar trial piece has a plurality of variable weights to be inserted into a plurality of holes in the patellar trial piece. The weights are made of different materials. In another embodiment, the patellar trial piece has a rounded top surface and a substantially flat bottom surface with a plurality of pegs. The pegs are selected from pegs with variable weights that are made of different materials.

7575602, Aug 18, 2009

Mar 19, 2003

10/393243

Farid Amirouche - Highland Park IL, US
Mark H. Gonzalez - Chicago IL, US

The Board of Trustees of the University of Illinois - Urbana IL

A61F 2/30, A61F 2/38

623 1811, 623 2032

A system and method for prosthesis fitting in joints comprising an artificial condyle and a spacer which cooperates with the condyle to form an artificial joint. The spacer embedded with at least one sensor which is responsive to a force generated between the condyle and the spacer. The artificial joint is adapted to move between a flexed position and an extended position defining a range of motion. The sensor is responsive to the force and generates an output representative of that force. The output is transmitted, either wirelessly or other, to a processor which utilizes an analysis program to display a representation of the forces applied. A practitioner utilizing the displayed analysis may intraoperatively determine the adjustments and balancing required within the artificial joint. The system may also utilize a ligament tension sensor which generates data representative of tension on a ligament of the artificial joint, and a joint angle sensor responsive to the range of motion of the artificial joint. The processor may be adapted to store the outputted sensor data to provide the practitioner with statistically relevant historical data.

8197549, Jun 12, 2012

Aug 11, 2009

12/539283

Farid Amirouche - Highland Park IL, US
Mark H. Gonzalez - Chicago IL, US

The Board of Trustees of the University of Illinois - Urbana IL

A61F 2/38, A61B 5/103

623 2029, 600587

A system and method for prosthesis fitting in joints comprising an artificial condyle and a spacer which cooperates with the condyle to form an artificial joint. The spacer embedded with at least one sensor which is responsive to a force generated between the condyle and the spacer. The artificial joint is adapted to move between a flexed position and an extended position defining a range of motion. The sensor is responsive to the force and generates an output representative of that force. The output is transmitted, either wirelessly or other, to a processor which utilizes an analysis program to display a representation of the forces applied. A practitioner utilizing the displayed analysis may intraoperatively determine the adjustments and balancing required within the artificial joint. The system may also utilize a ligament tension sensor which generates generates data representative of tension on a ligament of the artificial joint, and a joint angle sensor responsive to the range of motion of the artificial joint. The processor may be adapted to store the outputted sensor data to provide the practitioner with statistically relevant historical data.

7850696, Dec 14, 2010

Sep 28, 2005

11/237009

Mark H. Gonzalez - Chicago IL, US
Jack F. Long - Warsaw IN, US

DePuy Products, Inc. - Warsaw IN

A61B 17/56

606 86R

An apparatus for reducing a fracture in a bone and attaching a plate to the bone includes a first sub-assembly configured to reduce the fracture, and a second sub-assembly integrated with said first sub-assembly in a single surgical instrument. The second sub-assembly is configured to hold the plate against the bone concurrently with reduction of the fracture by the first sub-assembly.

2012029, Nov 15, 2012

Jun 5, 2012

13/489333

Farid Amirouche - Highland Park IL, US
Mark H. Gonzalez - Chicago IL, US

THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS - Urbana IL

A61F 2/08

623 1412

A device for intraoperative use in balancing joint forces and verifying the placement of the tibial component in total knee arthroplasty includes a spacer defining an enclosure; the spacer is sized to engage a top portion of the tibial component. A sensor array is embedded in the spacer, the sensor array measures forces on the spacer. A wireless transceiver is embedded in the spacer and forwards the output to a processor. The processor is analyzes the output and creates a pressure distribution graph indicative of the forces on the spacer, thereby assisting a surgeon in performing selective soft tissue release or component positioning in connection with surgical implantation of an orthopedic knee prosthesis.