Lew C Schon

Author:

Lew C. Schon

ISBN #:

0323023584

US Patent:

6572620, Jun 3, 2003

Filed:

Nov 16, 2001

Appl. No.:

09/993101

Inventors:

Lew C. Schon - Baltimore MD 21208
Brent G. Parks - West Friendship MD 21794
Christopher Chiodo - Norwood MA 02062

International Classification:

A61B 1756

US Classification:

606 62, 606 64, 606 60

Abstract:

The intramedullary fixation device for use in fixing the relative position between a tubular bone and an adjoining bone has, according to the present invention, an intramedullary nail intramedullary nail that is inserted into the medullary canal of the tubular bone whose position is to be fixed, an elongated blade for insertion into the adjoining bone whose position is to be fixed relative to that of the tubular bone, a washer for use when the nails design is such that its end section is not perpendicular to its longitudinal axis, and a screw that passes through openings in the blade and washer and into a threaded bore in the nail so as to, when tightened, lock the screw, washer, blade and nail together so as to prevent relative movement between these elements. The related method of the present invention comprises the steps of providing the listed elements for the fixation device and then seating the intramedullary nail and blade in the respective tubular and adjoining bones, and inserting the fixation means through a blade passageway and into a nail threaded bore so as to lock the elements together and to prevent relative movement between the treated bones.

US Patent:

7025790, Apr 11, 2006

Filed:

Jun 27, 2002

Appl. No.:

10/185006

Inventors:

Brent G. Parks - West Friendship MD, US
Christopher Chiodo - Norwood MA, US
Lew C. Schon - Baltimore MD, US
Steven Herbst - Baltimore MD, US
Johnny Lau - Baltimore MD, US

Assignee:

Concepts In Medicine III, L.L.C. - West Friendship MD

International Classification:

A61F 2/42

US Classification:

623 2118, 623 2111

Abstract:

The ankle joint prosthesis adapted to involve the patient's distal tibia and talus has, according to the present invention, tibial, talar and mobile or semi-constrained bearing components that are laterally to medially implanted in the patient. The tibial component's top surface has convex curvature in its anterior to posterior plane and is configured so as to approximate and match with the curvature of a prepared portion of the distal tibia; its bottom surface being approximately flat. The talar component's top surface has saddle-shaped, convex curvature in its anterior to posterior plane, it's bottom surface has concave curvature and is configured so as to approximate and match with the curvature of a prepared portion of the talus. The mobile or semi-constrained bearing components have embodiments that comprise a wide variety of geometric shapes. A method for implanting such a prosthesis is also disclosed.

US Patent:

7238190, Jul 3, 2007

Filed:

Mar 28, 2003

Appl. No.:

10/403243

Inventors:

Lew C. Schon - Baltimore MD, US
Brent G. Parks - West Friendship MD, US
Christopher Chiodo - Walpole MA, US

Assignee:

Concepts In Medicine III, LLC - West Friendship MD

International Classification:

A61F 5/00
A61B 17/58

US Classification:

606 87, 606 88

Abstract:

A surgical apparatus that makes possible the replacement of ankle tissue between the bottom of the tibia and the adjoining top of the talus bone comprises: (a) a base having primary and secondary anchoring holes that extend through the base and through which anchoring pins may be extended for anchoring withh the tibia, anchoring holes having adjoining and cooperating, threaded, set screw holes and set screws that cooperate to assist in fixing the position of the base relative to the anchoring pins and the tibia, (b) a surgical blade positioning shelf, the front surface of the shelf configured to approximate the curvature observable in the top portion of the talus and the rear surface of the shelf having attached to it a shaft which may slide in and out from an opening in the front surface of the base, and (c) indicia attached to the shaft which allows one to record the position of the front surface of the surgical blade positioning shelf relative to the base.

US Patent:

7506543, Mar 24, 2009

Filed:

Feb 23, 2006

Appl. No.:

11/359444

Inventors:

Christopher P. Chiodo - Walpolc MA, US
Brent G. Parks - West Friendship MD, US
Lew C. Schon - Baltimore MD, US
Lynne Chiodo - Walpole MA, US

International Classification:

A61B 5/00

US Classification:

73172

Abstract:

According to a first embodiment of our invention, a monitoring device is placed above, within, or on the bottom of a cast, boot, shoe, or other lower extremity immobilization or protective device, and has one or more single or cluster of pressure sensitive chambers designed to burst at a predetermined force or weight. The pressure sensitive chambers may be filled with air, liquid, semi-liquid, or particulate material. Once properly positioned, the device serves to detect and alert one or more individuals to the fact that weight-bearing has occurred and/or that a certain amount of force has been transmitted across the bottom or other portion of the cast, boot, shoe, mat, sock, insole, or lower extremity immobilization or protective device in a setting where such pressure could be deleterious or harmful (including situations where patients are recovering from a bony fracture, tendon injury, and recent lower extremity surgery).

US Patent:

7833184, Nov 16, 2010

Filed:

Mar 22, 2007

Appl. No.:

11/689578

Inventors:

Christopher P. Chiodo - Walpole MA, US
Brent G. Parks - West Friendship MD, US
Lew C. Schon - Baltimore MD, US
Wu Zhang - Proctorville OH, US
George Borak - Barboursville WV, US

Assignee:

Darco International, Inc. - Huntington WV

International Classification:

A61F 5/00
A61F 5/37
A61H 7/00

US Classification:

602 27, 602 13, 128882, 601148, 601151

Abstract:

A device and method for treating a foot and ankle with a splint and an adjustable bladder. The method includes providing a device including a rigid splint that maintains a heel of the foot and at least one adjustable bladder provided underneath only a front of the foot; adjusting an inflation of the at least one bladder to a treatment inflation state; and maintaining a foot and ankle within the device for an extended period of time such that the foot and ankle are substantially immobilized in a dorsiflexion position or the foot and ankle are substantially immobilized in a position whereby plantarflexion is provided to the ankle.

US Patent:

D648027, Nov 1, 2011

Filed:

Apr 30, 2010

Appl. No.:

29/360858

Inventors:

David W. Vancelette - San Diego CA, US
Lew C. Schon - Baltimore MD, US
Ronald George Litke - Danbury CT, US

Assignee:

Tornier, Inc. - Edina MN

International Classification:

2403

US Classification:

D24155

US Patent:

8211107, Jul 3, 2012

Filed:

May 10, 2007

Appl. No.:

11/801542

Inventors:

Brent G. Parks - West Friendship MD, US
Christopher Chiodo - Walpole MA, US
Lew C. Schon - Baltimore MD, US

Assignee:

Concepts In Medicine, LLC - West Friendship MD

International Classification:

A61B 17/78

US Classification:

606 64

Abstract:

The intramedullary fixation device for use in fixing the relative position between a tubular bone and an adjoining bone has, according to the present invention, an intramedullary nail that is inserted into the medullary canal of the tubular bone whose position is to be fixed, an elongated blade for insertion into the adjoining bone whose position is to be fixed relative to that of the tubular bone, a coupling element for fixing and locking the relative position of the nail and blade after their insertion, and a means for locating and positioning within the bones to-be-treated the nail and blade. Furthermore, the blade has a cross-sectional shape that is configured in consideration of the geometry of the bone into which the blade is to-be-placed and so as to enhance the ability of the blade to stabilize the bone, and these elements are configured so that they do not have to be decouple during the process of inserting the nail and blade.

US Patent:

8317799, Nov 27, 2012

Filed:

Mar 30, 2009

Appl. No.:

12/414194

Inventors:

Lew C. Schon - Baltimore MD, US
Richard H. Spedden - Clarksville MD, US
Laura J. Pingel - Ellicott City MD, US

Assignee:

Bioactive Surgical, Inc. - Clarksville MD

International Classification:

A61B 17/58
A61B 17/60
A61F 2/00

US Classification:

606 92, 606 94

Abstract:

Described herein is a novel drug delivery assembly having particular applicability to the field of orthopedic and surgical medicine. The devices and assemblies described herein enable the efficient application and retention of potentially expensive therapeutic materials to very specific locations, particularly those associated with voids in bone and tissue. One particularly unique aspect of the present invention involves the introduction of constructs which promote the retention of therapeutic material in the target area of application for beneficial use, for example by forming a proximal barrier that prevents leakage of the therapeutic material out of the target area. Additionally, the present invention provides unique devices and methods for surgical introduction of such constructs. The present invention finds particular application in connection with introduction of stem and progenitor cells, bioactive molecules and bone scaffold materials in conjunction with bone voids and with the use of cannulated implants, such as bone screws (also surgical screws) and pins. The present invention also has beneficial use in the delivery of cancer drugs, antimicrobials, bone cements and other therapeutic materials.