STEPHEN J INCAVO
Medical Practice at Quenby, Houston, TX

5964763, Oct 12, 1999

Jun 5, 1998

9/092690

Stephen J. Incavo - South Burlington VT
David L. Churchhill - Burlington VT
Bruce D. Beynnon - South Burlington VT

A61B 1780

606 71

A fully implantable, incrementally adjustable osteotomy fixation apparatus is disclosed. The apparatus comprises a first plate member, and a second plate member being telescopically received within the first plate member. The osteotomy fixation apparatus may further comprise a ratchet assembly, operatively associated with the first and second plate member, which allows for advancement of the first plate member relative to the second plate member, but prevents retraction. Attachment means operatively associated with the first and second plate members are provided for attaching the apparatus to the bone. The apparatus may also include an external extension brace, operatively associated with the ratchet, for extending the second plate member relative to the first plate member so that post-operative angular correction of the bone may be achieved. A method of performing an osteotomy to the bone is also disclosed utilizing the fixation apparatus herein disclosed.

5827286, Oct 27, 1998

Feb 14, 1997

8/801055

Stephen J. Incavo - South Burlington VT
David L. Churchhill - Burlington VT
Bruce D. Beynnon - South Burlington VT

A61B 1780

606 71

A fully implantable, incrementally adjustable osteotomy fixation apparatus is disclosed. The apparatus comprises a first plate member, and a second plate member being telescopically received within the first plate member. The osteotomy fixation apparatus may further comprise a ratchet assembly, operatively associated with the first and second plate member, which allows for advancement of the first plate member relative to the second plate member, but prevents retraction. Attachment means operatively associated with the first and second plate members are provided for attaching the apparatus to the bone. The apparatus may also include an external extension brace, operatively associated with the ratchet, for extending the second plate member relative to the first plate member so that post-operative angular correction of the bone may be achieved. A method of performing an osteotomy to the bone is also disclosed utilizing the fixation apparatus herein disclosed.

6852113, Feb 8, 2005

Dec 14, 2001

10/021980

Jeremy J. Nathanson - Vista CA, US
Dylann D. Ceriani - San Diego CA, US
Richard Gildersleeve - Escondido CA, US
Daniel S. Pflaster - Carlsbad CA, US
David L. Churchill - Burlington VT, US
Stephen J. Incavo - South Burlington VT, US
Bruce D. Beynnon - South Burlington VT, US

Orthopaedic Designs, LLC - Burlington VT

A61B017/80

606 71, 606 69, 606 73

An internal osteotomy fixation apparatus is provided. The device comprises a distal plate including a channel. A slide is slidably received within the channel such that the slide is translatable with respect to the distal plate along a first axis. A proximal plate is hingedly connected to the slide, such that the proximal plate has two degrees of freedom relative to the distal plate. A ledge protruding from a first portion of the proximal plate is configured to support a proximal bone segment when the device is implanted. The slide includes ratchet teeth. A ratchet arm including teeth is attached to the distal plate, and configured to engage the slide ratchet teeth. A cross-section of the ratchet arm is configured to maintain a constant stress level along a flexed portion of the arm. The distal plate includes a shelf upon which the ratchet arm rests. Compressive loads borne by the device are translated through the shelf to the distal plate.

5830215, Nov 3, 1998

Jun 6, 1997

8/870771

Stephen J. Incavo - South Burlington VT
John F. Dirmaier - South Burlington VT

A61B 1756

606 79

An apparatus and method for removing a previously implanted component is disclosed. Generally, the novel device will be used in artificial hip revision surgery. The device comprises a stem, a handle member adapted on the first end of the stem, and a hemispherical cutting blade mounted on the second end of the stem. The hemispherical cutting blade is adapted for cutting an acetabular component from the patient. In the preferred embodiment, the hemispherical cutting blade comprises a first-half hemispherical blade and a second-half hemispherical blade. The blades are interchangeable so that different size acetabular components may be removed via the procedure herein described. The device also includes a contact point member configured on the second end of the stem member, with the contact point member adapted to contact the concave surface of the acetabular component. The apparatus may further include an advancing member, operatively associated with the stem, for advancing the first-half hemispherical blade and said second-half hemispherical blade about said acetabular component. In one embodiment, the advancing member comprises a collar slidably received about the stem.

7387644, Jun 17, 2008

Sep 10, 2004

10/938747

Bruce D. Beynnon - South Burlington VT, US
Stephen J. Incavo - South Burlington VT, US
Kathryn M. Coughlin - Hinesburg VT, US

University of Vermont and State Agricultural College - Burlington VT

A61F 2/38

623 2015, 623 2014

A femoral component is provided for use in a knee joint prosthesis. The femoral component may be configured to provide one or more desirable kinematic relationships with a tibial component and/or patella so as to mimic the flexion and extension motion of a natural knee joint. The femoral component may be configured so that the patella follows a substantially circular pathway during knee flexion and extension. The femoral component may be configured so that the patella follows a curved patellar path during flexion and extension, and the curved patellar path has an origin located anterior and proximal to the geometrical center axis of the knee. The femoral component may be configured so that the patella follows a curved patellar path that lies in a plane which is parallel to and offset from a plane that extends through the center of the femoral head of a femur and is perpendicular to the geometric center axis of the knee. The femoral component may be configured so that at least a portion of the patella substantially follows a patellar path in a plane perpendicular to the geometrical center axis of a knee throughout knee flexion.

6156070, Dec 5, 2000

Mar 26, 1999

9/277672

Stephen J. Incavo - South Burlington VT
Martin M. Coyne - Harrington Park NJ
Andrij J. Nedilsky - New Milford NJ

Howmedica Osteonics Corp. - Allendale NJ

A61F 236, A61F 232

623 2352

A prosthetic implant for replacing an element of a natural joint includes an elongate core for securing the implant within natural bone at an implant site adjacent the natural joint, the implant including a allograft affixed to the core for interposition between the core and the natural bone at the implant site. A kit of component parts enables a surgeon to select allograft component parts for assembly with the core, interoperatively, for accommodating conditions encountered at the implant site.

5480444, Jan 2, 1996

Jun 2, 1994

8/252892

Stephen J. Incavo - South Burlington VT
James G. Howe - Shelburne VT

A61F 238

623 20

A one-piece hybrid tibial tray component of a knee replacement prothesis includes a laterally extending plate having a proximal surface, a distal surface which includes a peripheral surface for receiving bone cement and a central surface which promotes bone ingrowth and a central stem extending from the distal surface and which is perpendicular thereto. The distal surface is adapted to fit against the upper end of a patient's tibia as part of a knee replacement surgical procedure and provides both initial fixation via the cement bonding as well as long term fixation due to bone ingrowth.

2007010, May 3, 2007

Apr 12, 2006

11/403526

Stephen Incavo - Houston TX, US
Bruce Beynnon - South Burlington VT, US

The University of Vermont and State Agriculture College - Burlington VT

A61F 2/38

623020190, 623020340

The invention relates to an orthopedic prosthetic device and a method of implanting such device. More particularly, the invention relates to a knee replacement prosthesis having femoral, patellar, and tibial components having surfaces for receiving bone cement and surfaces which promotes bone ingrowth.