Nuvasive Specialized Orthopedics, Inc.

Applied Spine Technologies, Inc.

Aesculap Ag

Synthes Usa, LLC

Rachiotek, LLC

Ernest Corrao

Scott Louis Pool

Martin A Leugers

Andy Wonyong Choi

Ronald G Litke

Adam G Beckett

Sepehr Fariabi

Shanbao Cheng

Michael Wentz

Luke A Bilger

Joon Ki An

Robert L Richards

Daniel Dongelmans

Matthew Dwight

Jens Peter Timm

Carmen Walters

Jeffrey White

Glenn DiCostanzo

Bryan Hildebrand

Stephen A Maguire

Ronald Callahan

Alan Bachman

Manohar M Panjabi

Stuart Weikel

Robert Leslie Richards

Ronald T Callahan, Ii

Stephen Maguire

Glenn DiConstanzo

Brian Dec

A system for non-invasively adjusting the curvature of a spine includes a housing having a first end and a second end, a first rod having a first end telescopically disposed within a cavity of the housing along a first longitudinal axis at the first end of the housing and having a first threaded portion extending thereon, and a second end configured to be coupled to a first portion of a spinal system of a subject, a second rod having a first end telescopically disposed within the cavity along a second longitudinal axis at the second end of the housing and having a second threaded portion extending thereon, and a second end configured to be coupled to a second portion of the spinal system of the subject, a driving member rotatably disposed within the cavity and configured to be activated from a location external to the body of the subject.

Systems and methods for vertebral adjustment

An instrument for bending a surgical implant about a bending axis includes a handle defining a receiving area for receiving the surgical implant. A lever is pivotably connected to the handle about a pivot axis that can be orthogonal to the bending axis. A movable linkage can be connected to the lever for movement with the lever. The moveable linkage can be configured to bend the surgical implant about the bending axis upon pivoting the lever about the pivot axis.

Spinal fixation rod bending instrument

A surgical implant is provided that includes first and second abutment surfaces between which are positioned a force imparting mechanism. A sheath is positioned between the first and second abutment surfaces, and surrounds the force imparting mechanism. The sheath is fabricated from a material that accommodates relative movement of the abutment members, while exhibiting substantially inert behavior relative to surrounding anatomical structures. The sheath is generally fabricated from expanded polytetrafluoroethylene, ultra-high molecular weight polyethylene, a copolymer of polycarbonate and a urethane, or a blend of a polycarbonate and a urethane. The force imparting member may include one or more springs, e.g., a pair of nested springs. The surgical implant may be a dynamic spine stabilizing member that is advantageously incorporated into a spine stabilization system to offer clinically efficacious results.

Method for stabilizing a spinal segment

A motion interface structure for use with a pedicle screw is provided, the motion interface structure defining a central passage having an internal face. A helical thread is formed on at least a portion of the internal face of the central passage. The motion interface element is designed to cooperate with an upstanding region of a pedicle screw. The upstanding region includes a threaded region that is adapted to threadingly engage the helical thread associated with the motion interface element. The motion interface element may take the form of a spherical element or a universal joint mechanism. The pedicle screw and motion interface element may be incorporated into a spinal stabilization system that includes one or more additional pedicle screw/motion interface element subassemblies. The spinal stabilization system may also include a dynamic stabilizing element that provides clinically efficacious results.

Pedicle screw assembly with bearing surfaces

A pedicle screw is provided that includes an upwardly extending collet. The collet may include downwardly extending slots that define deflectable segments therebetween. When a spherical element or other structure, e.g., a non-dynamic stabilizing element, is positioned around the collet, introduction of a set screw causes outward deflection of the upstanding segments into engagement with the spherical element. A snap ring may be interposed between the collet and the spherical element to facilitate positioning therebetween. In an alternative embodiment, a non-slotted collet is employed. In such embodiment, the collet and the spherical element may be threadingly engaged and may include a snap ring therebetween. The pedicle screw subassemblies may be incorporated into a spinal stabilization system which may include a dynamic stabilizing member to provide clinically efficacious results.

Mounting mechanisms for pedicle screws and related assemblies

A surgical instrument is provided for urging a longitudinal spinal member into a bone fastener. The surgical instrument may include a holder assembly for engaging a bone fastener, the holder assembly preferably comprising a pair of pivotably connected members arranged in a scissor type configuration, and a reducing mechanism for moving the spinal rod with respect to the bone fastener, the reducing mechanism including a rod contacting member and an outer support structure having an opening for receiving at least a portion of the holder assembly and a cavity for receiving at least a portion of the vertical drive mechanism which is sized and configured to threadably engage the holder assembly. The holder assembly preferably includes a pair of jaws each having an extension formed thereon for engaging a recess formed on the lateral side walls of the bone fastener so that the holder assembly can engage the bone fastener without extending into the U-shaped channel. More preferably, the jaws may be sized and configured to engage only one of the side walls formed on the head of the bone fastener. The surgical instrument may further include a horizontal drive mechanism for aligning a laterally offset spinal rod with respect to the bone fastener.

Spinal rod insertion instrument

Growing community of inventors

Bethel, CT, United States of America

Ernest Corrao