Dennis B Burke

US Patent:

58609814, Jan 19, 1999

Filed:

May 29, 1997

Appl. No.:

8/864792

Inventors:

Kim C. Bertin - Bountiful UT
Dennis W. Burke - Milton MA
Gregory C. Stalcup - Columbia City IN
Rodney Bays - Pierceton IN
Richard D. Vanlaningham - Leesburg IN
Terry L. Dietz - Columbia City IN
Daniel O'Connor - East Taunton MA

Assignee:

Zimmer, Inc. - Warsaw IN

International Classification:

A61B 1700

US Classification:

606 89

Abstract:

The milling instrumentation of this invention provides a milling guide connected to the femur for accommodating a milling device. The milling instrumentation includes an alignment guide which is used by the surgeon to set a femoral bracket or base on the medial and lateral sides of the exposed femur adjacent its distal end. Once the brackets are set, the alignment guide is removed and a milling guide is connected to the bases. The milling guide establishes a series of reference planes each including a slot. A powered milling device having a burr connected thereto is guided by the slots along the reference planes to accurately mill away a portion of the bone. The milling device includes a bobbin-shaped tip which positively engages the slots to ensure that the milling device is held substantially perpendicular to the reference planes of the milling guide. If necessary, other instrumentation may be connected to the femoral bases which would form a common connection point for the additional instruments thereby ensuring alignment between the various instruments. Optionally, a one piece cutting guide may be connected to the bases to allow resection of the bone by a standard oscillating saw blade.

US Patent:

57439150, Apr 28, 1998

Filed:

Mar 25, 1997

Appl. No.:

8/823740

Inventors:

Kim C. Bertin - Bountiful UT
Dennis W. Burke - Milton MA
Gregory C. Stalcup - Columbia City IN
Rodney Bays - Pierceton IN

Assignee:

Zimmer, Inc. - Warsaw IN

International Classification:

A61B 1758

US Classification:

606 88

Abstract:

The milling instrumentation of this invention provides a milling guide connected to the femur for accommodating a milling device. The milling instrumentation includes an alignment guide which is used by the surgeon to set a femoral bracket or base on the medial and lateral sides of the exposed femur adjacent its distal end. Once the brackets are set, the alignment guide is removed and a milling guide is connected to the bases. The milling guide establishes a series of reference planes each including a slot. A powered milling device having a burr connected thereto is guided by the slots along the reference planes to accurately mill away a portion of the bone. The milling device includes a bobbin-shaped tip which positively engages the slots to ensure that the milling device is held substantially perpendicular to the reference planes of the milling guide. If necessary, other instrumentation may be connected to the femoral bases which would form a common connection point for the additional instruments thereby ensuring alignment between the various instruments. Optionally, a one piece cutting guide may be connected to the bases to allow resection of the bone by a standard oscillating saw blade.

US Patent:

59084243, Jun 1, 1999

Filed:

May 16, 1994

Appl. No.:

8/242987

Inventors:

Kim C. Bertin - Bountiful UT
Robert Booth - Philadelphia PA
Dennis W. Burke - Milton MA
Rodney Bays - Pierceton IN
Terry L. Dietz - Columbia City IN
Gregory C. Stalcup - Columbia City IN
Richard D. Vanlaningham - Milford IN

Assignee:

Zimmer, Inc, by said Stalcup, Dietz, Bays and Vanlaningham - Warsaw IN

International Classification:

A61B 1756

US Classification:

606 88

Abstract:

A tibial milling guide which incorporates a combination of instruments for producing a planar surface on a portion of the tibia using a milling device. The system includes: an extramedullary alignment guide with a detachable reference guide, an adjustable milling base assembly, a detachable milling template, a sizing gauge, and a milling depth gauge. The reference guide is used to position the alignment guide to the tibia. The reference guide has a T-shaped member which provides a planar reference and a centering reference to the tibial head. The reference guide also allows the surgeon to set the rotational alignment before the alignment guide is secured in place. The adjustable milling base assembly is also detachably connected to the alignment guide. The milling base assembly includes a slide and a shiftable base that allows for lateral adjustments of the template with respect to the articular surface after the alignment guide has been properly secured to the tibia. The milling base is also extensibly connected to the alignment guide to allow the spacing between the articular surface and the template to be adjusted.

US Patent:

58534156, Dec 29, 1998

Filed:

May 1, 1995

Appl. No.:

8/432481

Inventors:

Kim C. Bertin - Bountiful UT
Dennis W. Burke - Milton MA
Gregory C. Stalcup - Columbia City IN
Rodney Bays - Pierceton IN
Richard D. Vanlaningham - Leesburg IN
Terry L. Dietz - Columbia City IN
Daniel O'Connor - East Taunton MA

Assignee:

Zimmer, Inc. - Warsaw IN

International Classification:

A61B 1716

US Classification:

606 80

Abstract:

The milling instrumentation of this invention provides a milling guide connected to the femur for accommodating a milling device. The milling instrumentation includes an alignment guide which is used by the surgeon to set a femoral bracket or base on the medial and lateral sides of the exposed femur adjacent its distal end. Once the brackets are set, the alignment guide is removed and a milling guide is connected to the bases. The milling guide establishes a series of reference planes each including a slot. A powered milling device having a burr connected thereto is guided by the slots along the reference planes to accurately mill away a portion of the bone. The milling device includes a bobbin-shaped tip which positively engages the slots to ensure that the milling device is held substantially perpendicular to the reference planes of the milling guide. If necessary, other instrumentation may be connected to the femoral bases which would form a common connection point for the additional instruments thereby ensuring alignment between the various instruments. Optionally, a one piece cutting guide may be connected to the bases to allow resection of the bone by a standard oscillating saw blade.

US Patent:

57698554, Jun 23, 1998

Filed:

Mar 31, 1997

Appl. No.:

8/829626

Inventors:

Kim C. Bertin - Bountiful UT
Dennis W. Burke - Milton MA
Gregory C. Stalcup - Columbia City IN
Rodney Bays - Pierceton IN

Assignee:

Zimmer Inc. - Warsaw IN

International Classification:

A61B 1756

US Classification:

606 88

Abstract:

The milling instrumentation of this invention provides a milling guide connected to the femur for accommodating a milling device. The milling instrumentation includes an alignment guide which is used by the surgeon to set a femoral bracket or base on the medial and lateral sides of the exposed femur adjacent its distal end. Once the brackets are set, the alignment guide is removed and a milling guide is connected to the bases. The milling guide establishes a series of reference planes each including a slot. A powered milling device having a burr connected thereto is guided by the slots along the reference planes to accurately mill away a portion of the bone. The milling device includes a bobbin-shaped tip which positively engages the slots to ensure that the milling device is held substantially perpendicular to the reference planes of the milling guide. If necessary, other instrumentation may be connected to the femoral bases which would form a common connection point for the additional instruments thereby ensuring alignment between the various instruments. Optionally, a one piece cutting guide may be connected to the bases to allow resection of the bone by a standard oscillating saw blade.

US Patent:

54745594, Dec 12, 1995

Filed:

Dec 17, 1993

Appl. No.:

8/169459

Inventors:

Kim C. Bertin - Bountiful UT
Dennis W. Burke - Milton MA
Gregory C. Stalcup - Columbia City IN
Rodney Bays - Pierceton IN
Richard D. Vanlaningham - Leesburg IN
Terry L. Dietz - Columbia City IN
Daniel O'Connor - East Taunton MA

Assignee:

Zimmer, Inc. - Warsaw IN

International Classification:

A61B 1700

US Classification:

606 89

Abstract:

The milling instrumentation of this invention provides a milling guide connected to the femur for accommodating a milling device. The milling instrumentation includes an alignment guide which is used by the surgeon to set a femoral bracket or base on the medial and lateral sides of the exposed femur adjacent its distal end. Once the brackets are set, the alignment guide is removed and a milling guide is connected to the bases. The milling guide establishes a series of reference planes each including a slot. A powered milling device having a burr connected thereto is guided by the slots along the reference planes to accurately mill away a portion of the bone. The milling device includes a bobbin-shaped tip which positively engages the slots to ensure that the milling device is held substantially perpendicular to the reference planes of the milling guide. If necessary, other instrumentation may be connected to the femoral bases which would form a common connection point for the additional instruments thereby ensuring alignment between the various instruments. Optionally, a one piece cutting guide may be connected to the bases to allow resection of the bone by a standard oscillating saw blade.