Michael A Wack

US Patent:

6699290, Mar 2, 2004

Filed:

Nov 12, 1999

Appl. No.:

09/440014

Inventors:

Michael A. Wack - Warsaw IN
D. Steven Block - Warsaw IN
Austin W. Mutchler - Warsaw IN

Assignee:

DePuy Orthopaedics, Inc. - Warsaw IN

International Classification:

A61F 238

US Classification:

623 2012, 623 1913, 623 2117

Abstract:

A modular elbow prosthesis includes a humeral and ulnar components and three bearing components. The ulnar component includes a stem and a body including a slot. Two of the three bearing components include flanges that mate with the slot of the ulnar component. The humeral component includes a stem and two arms extending from one end of the stem. An opening is formed in each arm and in two of the three bearing components. The modular elbow may be used in an unconstrained mode by attaching one bearing component to the ulnar component and the other to the humeral component by inserting a pin through the openings in the arms and the bearing component. The two bearing components are then placed adjacent each other such that they articulate about their bearing surfaces. Alternatively, the prosthesis can be utilized in a constrained mode by positioning the flange of the third bearing component in the slot on the ulnar component and positioning the third bearing component between the arms of the humeral component and inserting a pin through the openings in the arms of the third component. In another alternative embodiment, one bearing component may surround a portion of the other bearing component.

US Patent:

7819877, Oct 26, 2010

Filed:

May 24, 2002

Appl. No.:

10/154558

Inventors:

Pamela C. Guzmán - Fort Wayne IN, US
Michael A. Wack - Warsaw IN, US
Dale R. Schulze - Lebanon OH, US
Gary W. Knight - West Chester OH, US
Christopher J. Hess - Lebanon OH, US
Rudolph H. Nobis - Mason OH, US
Michael F. Clem - Maineville OH, US
Ronald J. Kolata - Cincinnati OH, US

Assignee:

BePuy Products, Inc. - Warsaw IN

International Classification:

A61B 17/88

US Classification:

606 86B

Abstract:

A bone plating apparatus includes a handle having extending therefrom a tissue expander for insertion through a skin incision and through the subcutaneous tissue surrounding a fractured bone. A bone plate may be secured to the handle during advancement of the tissue expander so as to deliver the bone plate to a desired location proximate to the fractured bone. Both the tissue expander and the bone plate may be advanced to the desired location proximate to the fractured bone under the visualization of an endoscope. A screw alignment jig is secured to the handle and has a guide hole which aligns with an access hole of the tissue expander. The alignment of the guide hole and the access hole allow for percutaneous screw insertion into the delivered bone plate. A method for plating a fractured bone is also disclosed.

US Patent:

8328808, Dec 11, 2012

Filed:

May 24, 2002

Appl. No.:

10/480053

Inventors:

Pamela C. Guzman - Fort Wayne IN, US
Michael A. Wack - Warsaw IN, US
Dale R. Schulze - Lebanon OH, US
Gary W. Knight - West Chester OH, US
Christopher J. Hess - Lebanon OH, US
Rudolph H. Nobis - Mason OH, US
Michael F. Clem - Maineville OH, US
Ronald J. Kolata - Cincinnati OH, US

Assignee:

Biomet, C.V.

International Classification:

A61B 17/56

US Classification:

606 68

Abstract:

Apparatus () and methods for use in the performance of minimally invasive orthopedic procedures, including apparatus and methods for use in the performance of such procedures under the visualization of an endoscope (), are herein disclosed. Such procedures include a minimally invasive intramedullary nailing procedure, a minimally invasive bone graft harvesting procedure, a minimally invasive pelvic osteotomy procedure, an orthopedic implant revision procedure, and a minimally invasive percutaneous bone plating procedure.

US Patent:

20020156474, Oct 24, 2002

Filed:

Mar 18, 2002

Appl. No.:

10/100387

Inventors:

Michael Wack - Warsaw IN, US
Lawrence Bone - Buffalo NY, US
Roy Sanders - Tampa FL, US

International Classification:

A61B017/56

US Classification:

606/069000

Abstract:

According to the present invention, a fracture repair system for engagement with a bone is provided. The system includes a plate. The plate has a body portion and an internal wall defining a plate hole through the body portion. The system also includes one or more bushings having a radially exterior surface and an opposite radially interior surface defining a passageway. The exterior surface of the bushings and the interior wall of the plate are configured to permit polyaxial rotation of the bushings within the plate hole. The system also includes an attachment component having a distal portion sized for clearance passage through the passageway and into the bone and an opposite proximate portion sized to press the bushings against the internal wall of the plate to form a friction lock between the bushings and the plate in a selected polyaxial position. The attachment component is positionable in an orientation extending divergently from the center of the plate.

US Patent:

20030208277, Nov 6, 2003

Filed:

Jun 29, 2001

Appl. No.:

09/897654

Inventors:

D. Block - Warsaw IN, US
Michael Wack - Warsaw IN, US
Austin Mutchler - Warsaw IN, US

International Classification:

A61F002/38

US Classification:

623/020120, 623/020130

Abstract:

A modular elbow prothesis includes a humeral component, an ulnar component and three bearing components. The ulnar component includes a stem for implantation in the intramedullary canal of an ulna and a body including a slot. Two of the three bearing components include flanges that mate with the slot of the ulnar component. The humeral component includes a stem for implantation in the intramedullary canal of the humerus and two arms extending from one end of the stem. An opening is formed in each arm and in two of the three bearing components. The modular elbow may be used in an unconstrained mode by attaching one bearing component to the ulnar component and the other to the humeral component by inserting a pin through the openings in the arms and the bearing component. The two bearing components are then placed adjacent each other such that they articulate about their bearing surfaces. Alternatively, the prosthesis can be utilized in a constrained mode by positioning the flange of the third bearing component in the slot on the ulnar component and positioning the third bearing component between the arms of the humeral component and inserting a pin through the openings in the arms of the third component. In one embodiment, two of the bearing surfaces are configured to permit axial rotation without becoming disengaged.

US Patent:

20040030339, Feb 12, 2004

Filed:

Aug 1, 2003

Appl. No.:

10/633469

Inventors:

Michael Wack - Warsaw IN, US
Pamela Guzman - Fort Wayne IN, US
Dennis Stoller - Fort Wayne IN, US
Christopher Bremer - Warsaw IN, US
Mark Fenton - North Manchester IN, US
Lawrence Bone - Buffalo NY, US
Roy Sanders - Tampa FL, US

International Classification:

A61B017/56

US Classification:

606/069000

Abstract:

A fracture repair system for engagement with a bone having a condylar portion and a shaft portion is provided. The system includes a plate. The plate includes a head portion and a body portion. The head portion has an internal wall defining a head hole therethrough and is adapted for cooperation with the condylar portion. The body portion has an internal wall defining a body hole through the wall. The system further includes a bushing having a generally spherical exterior surface adapted for cooperation with the head hole and an opposed interior surface defining a passageway through the bushing. The exterior surface of the bushing and the head hole of the plate are configured to permit polyaxial rotation of the bushing within the head hole. The system also includes a head attachment component including a distal portion sized for clearance passage through the passageway and into the bone and an opposed proximate portion sized to urge the bushing against the internal wall of the plate to form a friction lock between the bushing and the plate in a selected polyaxial position. The head attachment component is positionable in an orientation extending divergingly from the plate. The system also includes a body attachment component having a stem portion for passage through the body hole and into the bone and an opposed cap portion sized to cooperate with the plate.

US Patent:

20050049594, Mar 3, 2005

Filed:

Sep 30, 2003

Appl. No.:

10/675107

Inventors:

Michael Wack - Warsaw IN, US
Pamela Guzman - Fort Wayne IN, US
Dennis Stoller - Fort Wayne IN, US
Christopher Bremer - Warsaw IN, US
Rebecca Oberst - Fort Wayne IN, US
Mark Fenton - North Manchester IN, US
George Haidukewych - Tampa FL, US
Lawrence Bone - Buffalo NY, US
Roy Sanders - Tampa FL, US

International Classification:

A61B017/56

US Classification:

606069000

Abstract:

A system for percutaneous fracture repair of a bone is provided. The system includes a plate having a first feature and a second feature. The first feature and the second feature are spaced apart from each other. The plate defines a longitudinal axis of the plate. The system also includes a first attachment component operably associated with the first feature. The first attachment component cooperates with the bone. The system also includes a second attachment component operably associated with the second feature. The second attachment component is percutaneously inserted into the second feature. The second attachment component is operably associated with the plate to provide a compressive force in the bone. The compressive force has a component of the force in the longitudinal axis. The second attachment component is adapted for cooperation with the bone.

US Patent:

20050177153, Aug 11, 2005

Filed:

Dec 30, 2004

Appl. No.:

11/027135

Inventors:

Pamela Guzman - Fort Wayne IN, US
Michael Wack - Warsaw IN, US
Dale Schulze - Lebanon OH, US
Gary Knight - West Chester OH, US
Christopher Hess - Lebanon OH, US
Rudolph Nobis - Mason OH, US
Michael Clem - Maineville OH, US
Ronald Kolata - Cincinnati OH, US

International Classification:

A61B017/56

US Classification:

606053000

Abstract:

Apparatus and methods for use in the performance of minimally invasive orthopaedic procedures, including apparatus and methods for use in the performance of such procedures under the visualization of an endoscope, are herein disclosed. Such procedures include a minimally invasive intramedullary nailing procedure, a minimally invasive bone graft harvesting procedure, a minimally invasive pelvic osteotomy procedure, an orthopaedic implant revision procedure, and a minimally invasive percutaneous bone plating procedure.