DR. CHRISTOPHER E JOHNSON, MD
Medical Practice at Eh Crump Blvd, Memphis, TN

RE39995, Jan 1, 2008

Sep 13, 2001

09/951983

John Pepper - Cheshire CT, US
Thomas A. Russell - Eads TN, US
Roy Sanders - Tampa FL, US
Christopher E. Johnson - Germantown TN, US

Smith & Nephew, Inc. - Memphis TN

A61B 17/00, A61F 5/00

606 80, 606 79, 606 86

A minimally invasive reaming assembly for creating an entry portal into the canal of a bone and for providing a working channel in which to ream the canal of a bone. The assembly includes a sleeve, a housing and an inner reamer. The sleeve is an elongated cylindrically-shaped hollow sleeve that has a proximal and a distal end, with the distal end having a plurality of cutting blades. The housing is attached to the sleeve and is generally cylindrical in shape and it has a top portion, a bottom portion and a through bore. The top portion includes a releasable locking mechanism for engaging the inner reamer within the housing. The inner reamer has an elongated cannulated body and proximal and distal ends. The distal end has a rotatable reaming head and the proximal end has a drill shaft and a connector for connection to a drill. A portion of the body includes an annular collar with a tab for engaging a notch in the housing.

8105364, Jan 31, 2012

Feb 17, 2010

12/707349

Richard McCarthy - Little Rock AR, US
Christopher E Johnson - Germantown TN, US
Rex W Armstrong - Cordova TN, US

Warsaw Orthopedic, Inc. - Warsaw IN

A61B 17/88

606279, 606257, 606267

A system for stabilization of the spinal column, including an elongate support member extending along an axis and a plurality of anchor members configured for anchoring to respective vertebrae. A first of the anchor members is engaged to the support member in a manner that substantially prevents axial movement of the support member relative to the first anchor member, and a second of the anchor members is engaged to the support member in a manner that allows substantially unconstrained axial movement of the support member relative to the second anchor member. In a further embodiment, a third of the anchor members is engaged to the support member in a manner that also allows substantially unconstrained axial movement of the support member relative to the third anchor member, with the second and third anchor members positioned on opposite sides of the first anchor member.

8529604, Sep 10, 2013

Apr 13, 2010

12/759403

John Stewart Young - Olive Branch MS, US
Craig M Squires - Cordova TN, US
David L Brumfield - Collierville TN, US
Christopher E Johnson - Germantown TN, US
Dennis J Buchanan - Cordova TN, US

Warsaw Orthopedic, Inc. - Warsaw IN

A61B 17/70

606269, 606270

A bottom-loading multi-axial bone anchor apparatus is disclosed. The apparatus includes a receiver member, a crown member, a bone anchor and a retaining member. The receiver member defines an upper opening and a lower opening, which may form part of the same opening, a channel, and a groove. The crown member and bone anchor are loaded into the lower opening of the receiver member, and the retaining member fits around the bone anchor and into the groove in the receiver member. The bone anchor is capable of multi-axial positioning with respect to the receiver member. An elongated member is placed in the channel of the receiver member, contacting the crown member, and a compression member is applied via the upper opening. The compression member presses down on the elongated member, which presses down on the crown member and locks the bone anchor between the crown member and the retaining member.

2009004, Feb 12, 2009

Aug 8, 2008

12/228159

Hai H. Trieu - Cordova TN, US
David Lee Grant - Bartlett TN, US
William L. Waltersdorff - Hernando MS, US
Charles Tyson Dunn - Cordova TN, US
Christopher Edward Johnson - Germantown TN, US

IMS Launch LLC - Bartlett TN

A61B 1/32

600220

A childbirth instrument and method of use. The instrument may have guide and/or guard portions with concave posterior sides, and may have one or more grips. The guide may have first, second, and third elongated reference slots for performing episiotomy cuts therethrough, with the reference slots locating the angle and position of the episiotomy cuts, and the guard provides protection for the unborn infant. Another embodiment has one or more apertures through which a hypodermic needle may deliver a local anesthetic prior to making episiotomy cuts. The instrument may have one or more grips, which may be removable, and may have a movable stop and/or guide aperture. The angle of the episiotomy cut may be adjusted with one embodiment. The guide and guard portions may separate. Finger-receiving portions may be provided on the guard.