Spinal Innovations, LLC

Other

Wright Medical Technology, Inc.

Aesculap Implant Systems, LLC

Intelligent Implant Systems, LLC

Aesculap Ii, Inc.

Aesculap Ag & Co Kg

Dow Corning Wright Corp.

Aesculap, Inc.

Aesculap Ag

Marc Evan Richelsoph

David F Waller

John D Usher

Kenneth William Russell

Jay Adams

Joseph Clift

Roy Drake Bloebaum

Richard E Jones

John A Usher, Jr

Robert M Crews

Eric C Lange

Maureen J Theis

An orthopedic fixation device comprising a bearing and a retaining portion. The bearing defines a bearing internal bore and has a rounded exterior surface, an upper surface, an intermediate surface, and a lower surface, and at least one slot in the bearing extending from the exterior surface to the internal bore. The retaining portion defines a recess shaped to accept the exterior surface of the bearing therein such that in a steady state of the bearing, the bearing can move within the recess, and, when at least one force is imparted against one of the upper and lower surfaces of the bearing, the bearing deforms outwardly to fix the bearing in place within the recess.

Polyaxial plate rod system and surgical procedure

A polyaxial screw assembly includes an internal load dampening mechanism for sharing and dampening loads between at least one screw member and at least one rod member interconnected by the assembly. A method of interconnecting the orthopedic screw with the rod includes dampening with a body member interconnecting the screw to the rod.

Polyaxial screw assembly

A spinal fixation device includes a bone screw, a nut, a bearing, a slider, and a plate construct. The screw has a head with a nut connection and a screw portion. The nut has an exterior wall and a bore connecting to the nut connection. The bearing has an exterior and defines a bore fitting therein the nut connection and the exterior wall of the nut. The slider defines a bore fitting the nut exterior wall therewithin and has an exterior with a given shape. The elongate plate construct has a first end defining a first opening shaped to accept the exterior of the bearing therein and a second end defining a second opening shaped to accept the slider therein and having a corresponding shape to the given shape to permit the slider to slide in at least a portion of the second opening.

A screw and rod fixation assembly includes a body member including a screw seat for seating a screw head therein and a rod seat for seating a rod therein. An adjustable locking ring applies a locking force against the screw head seated in the screw seat and a locking cap adjustably applies a locking force against a rod seated in the rod seat. The adjustable screw locking ring and locking cap function independent of each other. A method of fixing the rod to the screw includes the steps of inserting a screw head into a screw seat in one end of a body member and inserting a rod into a rod seat in a second end of a body member and selectively and independently adjusting a locking force on both the screw head and the rod within the screw seat and rod seat, respectively.

Spinal implant

A polyaxial screw assembly includes an internal load dampening mechanism for sharing and dampening loads between at least one screw member and at least one rod member interconnected by the assembly. A method of interconnecting the orthopedic screw with the rod by dampening with a body member interconnecting the screw to the rod.

A rod to rod connector includes a connector body containing a rod retaining insert. An interconnecting portion inner connects to a body to at least one other connector body. The insert is snap locked within the connector body simultaneously while retaining a rod within the insert in a locked condition.

Rod to rod connector with load sharing

An instrument for assisting in guiding a spinal connector or rod through one or more spinal implants placed in the spine includes a main assembly having the ability to accurately guide a rod through the implants by way of rotation and translation. By introducing the rod via rotation, the tip of the rod can be located very accurately deep in soft tissue for percutaneous applications. Once inside the first implant, the rod tip can be advanced by translation and rotation to the next implant. The number of implants connected in this manner is only limited to the length and curvature of the rod introduced. However, an advantage to the instrument is the ability to handle multiple length rods of different curvatures by adjustments to the instrument.

Percutaneous instrumentation and surgical procedure

A self-contouring spinal rod assembly. The assembly has a proximal end, a distal end, and a length extending between the proximal end and the distal end. A plurality of rod elements extend along the length, such that each of the plurality of rod elements is in contact with an adjacent rod element. The plurality of rod elements are fixed against movement relative to each other at the distal end. The plurality of rod elements are movable relative to each other along a length proximal the distal end. A method of assembling the spinal rod assembly is also provided.

Self-contouring spinal rod

A bone plate assembly utilizing at least one bone screw for fixation of adjacent bones of a spine including a base plate having at least one aperture extending therethrough and screw retaining mechanism mounted and movable on the plate between locked and unlocked positions relative to the aperture for preventing the bone screw from backing out from the base plate.

Bone plate and screw retaining mechanism

A bone screw includes a head portion and shank portion. The shank portion includes a regularly outwardly expanding threaded portion.

Active bone screw

The present invention provides for a screw and rod fixation assembly for fixing a screw and, optionally, a rod. The screw and rod fixation assembly includes a screw, fixing mechanism, a substantially annular ring, rod seating mechanism, and locking mechanism. The present invention also provides for a fixing mechanism for fixing a screw, wherein the fixing mechanism further includes an inner surface wall having a gripping portion and a non-gripping portion. Further, the present invention provides for a substantially annular ring for guiding and providing mechanical and frictional force to a screw head. Additionally, the present invention provides for a rod seating mechanism operatively engaged to the screw head and including at least one flexible portion capable of being compressed against a portion of a rod therein. Finally, the present invention provides for a locking mechanism for engaging the rod and the rod seating mechanism. The locking mechanism includes a deflecting mechanism for deflecting the at least one flexible portion of the rod seating mechanism against and around the rod as the locking mechanism further engages the at least one flexible portion of the rod seating mechanism.

Screw and rod fixation assembly and device

A spinal implant assembly includes a housing for containing a bearing member therein and seating within an intervertebral space and a bearing member disposed within the housing for enabling disc-like movement between vertebrae defining the intervertebral space. The combination of the housing and bearing member provide a distracting mechanism disposed within the housing halvesfor distracting the housing halvesfrom a first condition in which the housing halvesare floatable into the intervertebral space to a second condition in which the housing halvesare distracted to fixedly engage the opposing vertebral services defining the intervertebral space. A method of inserting the spinal implant assembly into the intervertebral space includes the steps of inserting the spinal implant assembly into the intervertebral space and then distracting the spinal implant assembly from a first condition in which the spinal implant assembly is floatable into the intervertebral space to a second condition in which the assembly is distracted to fixedly engage opposing vertebral services defining the intervertebral space.

Growing community of inventors

Memphis, TN, United States of America

Marc Evan Richelsoph