Shawn Elliott Mcginley

US Patent:

6925339, Aug 2, 2005

Filed:

Feb 4, 2003

Appl. No.:

10/357754

Inventors:

James E. Grimm - Winona Lake IN, US
Shawn E. McGinley - Fort Wayne IN, US

Assignee:

Zimmer Technology, Inc. - Chicago IL

International Classification:

G05B019/18
A61B019/00

US Classification:

700 59, 700 57, 606130

Abstract:

A system for registering an orthopedic implant in a computer assisted navigation system. The system includes a plurality of differently sized implants which may be the femoral component or hip stem of a prosthetic hip joint. A registration device is engageable with each of the implants in a predefined relative position. The registration device also includes at least one reference element registerable in the computer assisted navigation system. A second reference structure also having at least one reference element registerable in the computer assisted navigation system is detachably secured to the implant. The relative positions of the reference elements located on the registration device and second reference structure differs for each of the plurality of implants and thereby allows the navigation system to determine the nominal size of the implant. The relative position and orientation of the implant relative to the second structure can also be calibrated using the registration device.

US Patent:

6932823, Aug 23, 2005

Filed:

Jun 24, 2003

Appl. No.:

10/603007

Inventors:

James E. Grimm - Winona Lake IN, US
Shawn E. McGinley - Fort Wayne IN, US

Assignee:

Zimmer Technology, Inc. - Chicago IL

International Classification:

A61B019/00

US Classification:

606130, 128898, 606 96

Abstract:

A detachable support arm structure couples a computer-assisted navigation system reference array to an instrument, for example, a surgical instrument, such that the geometry between the reference array and the surgical instrument is predetermined and registration of the instrument in the navigation system does not require calibration each time the reference array and support arm structure are coupled to the instrument. The support arm structure includes a mounting interface engageable with a mounting interface on the instrument. Engagement of the mounting interfaces releasably secures and repeatably and accurately locates and fixes the support structure to the instrument in a predefined geometry in each of six degrees of freedom. The reference array includes at least one reference element and is releasably securable to the support structure in a predefined geometry of the support structure relative to the reference array which repeatably and accurately locates and fixes the support structure relative to the reference array in each of six degrees of freedom.

US Patent:

6988009, Jan 17, 2006

Filed:

Mar 3, 2004

Appl. No.:

10/792615

Inventors:

James Grimm - Winona Lake IN, US
Shawn McGinley - Fort Wayne IN, US
Dale Walriven - Warsaw IN, US
Chetan Rangaiah - Warsaw IN, US

Assignee:

Zimmer Technology, Inc. - Chicago IL

International Classification:

G05B 19/18
A61B 17/58
A61B 19/00
A61B 17/60
A61F 2/00

US Classification:

700 57, 606102, 606130

Abstract:

A system for registering an orthopedic implant in a computer assisted navigation system. The system includes a plurality of differently sized implants which may be the femoral component or hip stem of a prosthetic hip joint. A registration device is engageable with each of the implants in a predefined relative position. The registration device also includes at least one reference element registerable in the computer assisted navigation system. A second reference structure also having at least one reference element registerable in the computer assisted navigation system is detachably secured to the implant. The relative positions of the reference elements located on the registration device and second reference structure differs for each of the plurality of implants and thereby allows the navigation system to determine the nominal size of the implant. The relative position and orientation of the implant relative to the second structure can also be calibrated using the registration device.

US Patent:

7458977, Dec 2, 2008

Filed:

Feb 4, 2003

Appl. No.:

10/357959

Inventors:

Shawn E. McGinley - Fort Wayne IN, US
Dean M. J. Acker - Warsaw IN, US
Kevin S. Cook - Warsaw IN, US
James E. Grimm - Winona Lake IN, US

Assignee:

Zimmer Technology, Inc. - Warsaw IN

International Classification:

A61B 19/00

US Classification:

606130, 600426

Abstract:

A surgical instrument having a grip, a reference structure and an alignment head and method of using. The reference structure has at least one reference element that is registrable in a computer assisted navigation system. The reference element may be a reflective structure for use in an optical tracking system, wire loop for sensing a magnetic field, or other suitable device. The alignment head has a substantially planar alignment surface and may also have a plurality of outwardly extending projections or an electrocautery electrode disposed along an edge of the alignment surface and extending parallel to the alignment surface. The projections may be engaged with an anatomical structure to hold the alignment head in a desired position as the alignment surface is used as a guide to mark the anatomical structure. The disclosed instrument may be used when resecting a femur to prepare the femur to receive the femoral component of a prosthetic hip joint.

US Patent:

7658741, Feb 9, 2010

Filed:

Jun 16, 2005

Appl. No.:

11/154774

Inventors:

Jody Claypool - Columbia City IN, US
Maleata Y Hall - Warsaw IN, US
Shawn E McGinley - Fort Wayne IN, US
Sudip Hui - Warsaw IN, US

Assignee:

Zimmer, Inc. - Warsaw IN

International Classification:

A61F 5/00

US Classification:

606 87, 606 86 R, 606 88, 606 89

Abstract:

A multi-positionable cut guide including a bone attachment device, base, and guide member. Bone attachment device is adapted to be coupled to the bone and has a base receiving portion. Base includes a mounting portion slideably coupled to base receiving portion such that base is slideable relative to attachment device along at least one dimension. Guide housing is pivotally mounted to base and guide member is rotatably mounted to guide housing. Guide member defines an axis about which it is rotatable. Guide member defines an elongated guide slot extending along the axis and adapted to receive and guide a saw for resecting the end of the bone. Guide slot defines a cut guide plane, the position of which is adjustable relative to the bone via sliding of base along at least one dimension, pivoting of the guide housing relative to base, and rotation of guide member about the axis.

US Patent:

8114086, Feb 14, 2012

Filed:

Jan 31, 2006

Appl. No.:

11/344273

Inventors:

Jody L. Claypool - Columbia City IN, US
Shawn E. McGinley - Fort Wayne IN, US
Sudip Hui - Warsaw IN, US

Assignee:

Zimmer Technology, Inc. - Warsaw IN

International Classification:

A61B 17/15

US Classification:

606 87, 606130

Abstract:

A navigated guide is provided for establishing datums used to position subsequent components during a surgical procedure.

US Patent:

7993341, Aug 9, 2011

Filed:

Nov 2, 2004

Appl. No.:

10/979734

Inventors:

James E. Grimm - Winona Lake IN, US
Shawn E. McGinley - Fort Wayne IN, US
Sudip Hui - Warsaw IN, US

Assignee:

Zimmer Technology, Inc. - Warsaw IN

International Classification:

A61F 2/46

US Classification:

606 86R, 606 88

Abstract:

A navigated orthopaedic guide is provided for establishing datums used to position subsequent components during an orthopaedic surgical procedure.

US Patent:

20040122305, Jun 24, 2004

Filed:

Dec 20, 2002

Appl. No.:

10/325088

Inventors:

James Grimm - Winona Lake IN, US
Donald Patmore - Winona Lake IN, US
Shawn McGinley - Fort Wayne IN, US

International Classification:

A61B005/05

US Classification:

600/407000

Abstract:

A surgical instrument having an anchoring member and an instrument body which is adjustably repositionable relative to the anchoring member. At least one reference element may be mounted on the instrument body to facilitate the registration of the instrument body in a computer implemented image guidance system. The reference element may be three non-linearly positioned elements disposed on a removably mountable member. The anchoring member may be secured to an anatomical structure using an image guidance system. The instrument body may then be selectively adjusted with respect to the anchoring member and anatomical structure after securing the anchoring member with the anatomical structure. The selective repositioning adjustment of the instrument body on the anatomical structure may also employ a computer implemented image guidance system. The instrument may be used in the resection of a femur when implanting a prosthetic knee joint.