Derek M Lewis

Address:

425 Driftwood Ct, Copley, OH 44321

VIN:

WBANB53537CN93654

Make:

BMW

Model:

5 SERIES

Year:

2007

US Patent:

D623744, Sep 14, 2010

Filed:

Feb 17, 2009

Appl. No.:

29/313865

Inventors:

Lee A. Strnad - Broadview Hts. OH, US
Vinay Korlepara - Davie FL, US
Derek S. Lewis - Copley OH, US
Dustin Ducharme - Stow OH, US
Gordon Bennett - Akron OH, US
James Sferra - Chagrin Falls OH, US

Assignee:

Orthohelix Surgical Designs, Inc. - Medina OH

International Classification:

2403

US Classification:

D24155

US Patent:

8118846, Feb 21, 2012

Filed:

Feb 24, 2009

Appl. No.:

12/380177

Inventors:

Andrew J. Leither - Akron OH, US
Derek S. Lewis - Copley OH, US
Rebecca F. DiLiberto - Akron OH, US
Bryan D. Den Hartog - Rapid City SD, US
Thomas Bradley Edwards - Houston TX, US
Anil K. Dutta - San Antonio TX, US
Robert H. Bell - Akron OH, US

Assignee:

Orthohelix Surgical Designs, Inc. - Medina OH

International Classification:

A61B 17/80

US Classification:

606280, 606283, 606284, 606286

Abstract:

The present invention relates to a series of orthopedic plates for use in repair of a clavicle. The plate has a Y-shaped profile or an X-shaped profile which includes an elongate central trunk with a complex contour and wither one or two terminal pairs of arms that have a first arm and a second arm that form differing angles and lengths relative to the trunk portion of the plate. The arms include locking screw holes where the screws converge toward each other to provide for multiplanar fixation but which do not impinge.

US Patent:

8118848, Feb 21, 2012

Filed:

Feb 24, 2009

Appl. No.:

12/380166

Inventors:

Dustin Ducharme - Stow OH, US
Bryan D. Den Hartog - Rapid City SD, US
Derek S. Lewis - Copley OH, US

Assignee:

Orthohelix Surgical Designs, Inc. - Medina OH

International Classification:

A61B 17/80

US Classification:

606291, 606280, 606286

Abstract:

The present invention relates to an orthopedic plate for use in repair of a fibula. The plate has a Y-shaped profile which has the contour of a spoon where the bowl includes a terminal pair of arms that form differing angles and lengths relative to the trunk portion of the plate. The arms include locking screw holes where the screws converge toward each other, but do not impinge so as to provide-multiplanar fixation.

US Patent:

8167918, May 1, 2012

Filed:

Feb 17, 2009

Appl. No.:

12/378539

Inventors:

Lee A. Strnad - Broadview Hts. OH, US
Vinay Korlepara - Plantation FL, US
Derek S. Lewis - Copley OH, US
Dustin Ducharme - Stow OH, US
Gordon Bennett - Akron OH, US
James Sferra - Chagrin Falls OH, US

Assignee:

Orthohelix Surgical Designs, Inc. - Medina OH

International Classification:

A61B 17/80

US Classification:

606280, 606906

Abstract:

The present invention is a MTP plate that has a first embodiment with a profile having bilateral mirror symmetry of the about a transverse plane with an angle of about 5 for dorsiflexion and an angle of about 10 for valgus. Both ends of the plate include a central arm having a slot for compression and two offset arms having offset ears with locking screw holes that provide for multiplanar compressive fixation. The bone contacting surface of the plate is radiused to allow the plate to be in snug contact with the bone. In a second embodiment of the plate for revision surgery, the proximal end of the plate includes a metatarsal extension and the plate has a central locking hole for securing bone graft.

US Patent:

8394132, Mar 12, 2013

Filed:

Sep 16, 2008

Appl. No.:

12/283777

Inventors:

Derek S. Lewis - Copley OH, US
Deepa Mani - Stow OH, US
David B. Kay - Akron OH, US
Amanda Martin - Norton OH, US

Assignee:

Orthohelix Surgical Designs, Inc. - Medina OH

International Classification:

A61B 17/58

US Classification:

606301, 606304, 606305, 606309, 606311, 606319, 606321

Abstract:

A cannulated compression screw is used as an orthopedic implant and has a threaded distal end with an insertion tip that includes at least one and preferably two, three or four flutes to allow the screw to be self-tapping. Optionally, the screw also includes one or more reverse cutting flutes proximal to the insertion tip. The distal threads are cancellous threads having a generally constant minor diameter and a generally constant major diameter and a generally constant thread pitch. An intermediate portion of the screw is non-threaded and the proximal end includes a compression wedge or taper that has at least one, and preferably two to five flutes that terminate before the top of the screw. The proximal end further includes a radiused bevel to the terminal surface that includes a hexagonal torque driving recess. The diameter of the non-threaded shaft section is constant distal from the compression wedge to the distal tip where it defines the minor diameter of the threaded portion.

US Patent:

20090177208, Jul 9, 2009

Filed:

Jul 8, 2008

Appl. No.:

12/217632

Inventors:

Lee A. Strnad - Broadview Hts. OH, US
Dustin Ducharme - Stow OH, US
Andrew J. Leither - Columbus OH, US
Derek S. Lewis - Copley OH, US
Amanda Martin - Norton OH, US

International Classification:

A61B 17/58

US Classification:

606 96

Abstract:

A surgical drill guide for positioning, aligning, and of holes to be drilled in bone tissue has retaining means that holds the position and alignment of the drill guide body in a releasable manner with respect to a fastener hole in an orthopedic implant. The retaining means is a key guide that mates with a key way or key ways in or around a threaded locking hole of an orthopedic plate for alignment of a pilot hole and method of using the guide. The key guide has 2 to projections that extend in the direction of the axis of the hole, such as hemi cylindrical projections, and the plate has a corresponding female key way that receives the retaining means. The invention also relates to a method of aligning a locking fastener in a plate at a desired angle relative to a bone by using a surgical guide having a key interface with the plate to position and align a pilot hole.

US Patent:

20090248087, Oct 1, 2009

Filed:

Feb 26, 2009

Appl. No.:

12/380339

Inventors:

Derek S. Lewis - Copley OH, US
David B. Kay - Akron OH, US

Assignee:

OrthoHelix Surgical Designs, Inc. - Akron OH

International Classification:

A61B 17/86

US Classification:

606301

Abstract:

A locking mechanism assembly to allow locking of a fastener in an orthopedic implant having its axis at a variable angle relative to the axis of a threaded through opening in the implant. The assembly includes a convexly rounded ring shaped locking insert which mates with the through opening. The head of the fastener includes a concentric flange that engages the locking ring into a locking relationship with the threads of the opening as the fastener is tightened into position. Preferably the locking ring is integral with the head of the fastener. The locking ring is made from a material that is more deformable than the material of the plate.

US Patent:

20110015682, Jan 20, 2011

Filed:

Jul 13, 2010

Appl. No.:

12/804062

Inventors:

Derek S. Lewis - Copley OH, US
Andrew J. Leither - San Diego CA, US
Rebecca F. DiLiberto - Akron OH, US

Assignee:

OrthoHelix Surgical Designs, Inc. - Medina OH

International Classification:

A61B 17/86
A61B 17/80

US Classification:

606305, 606289

Abstract:

A locking mechanism assembly to allow locking of a fastener in an orthopedic implant having its axis at a variable angle relative to the axis of threaded through opening in the implant. The assembly includes a locking insert, having threads which mates with the threads of the through opening and which includes a smooth opening that forms a torque driving recess and an annular flange. A fixator has a head portion with external threads of a harder material than that which forms the through opening so that the threads of the fixator will deform the insert to lock the fixator in a desired position relative to the plate.