Zimmer Biomet Spine, Inc.

Lanx, Inc.

Highridge Medical, LLC

Randall G Mast

Allison Christine Capote

Alan Burkholder

Jared Parker

Caleb Lee Stoll

Adam Kanter

Andrew Schifle

David Okonkwo

Michael Funk

Andrew Lamborne

Justin Taber

William Sandul

Heidi Farmer

Thomas Serra

Patrick Hunt

Terry Ziemek

Dean G Karahalios

Guillaume Quetier

Drew Schifle

Daniel Burke

Anup Gandhi

Andrew Shifle

G Andrew Grim

John Spohn

Amy Claeson

Alan R Burkholder

A tool for breaking tabs of a vertebral bone anchor can include a tip, a first rail, and a second rail. The tip can be positionable over a housing of a vertebral bone anchor. The first rail can be pivotably coupled to the tip and can extend proximally away from the tip. The first rail can be configured to receive a first extended tab therein. The first rail can be pivotable with respect to the tip between a first upright position and a first outward position to break the first extended tab from the housing. The second rail can be pivotably coupled to the tip and can extend proximally away from the tip.

Extended tab separation apparatus and method

An anchor extender can be couplable to a bone anchor and can include an outer sleeve, an inner sleeve, and a lock. The lock can be operable to translate the inner sleeve relative to the outer sleeve between a locked position and an unlocked position to secure the inner sleeve and the outer sleeve to a head of the bone anchor in the locked position and to release the inner sleeve and the outer sleeve from the head of the bone anchor in the unlocked position.

Split tower for a bone anchor

A rod reduction instrument includes an inner sleeve, a first housing portion, a second housing portion, a plurality of engagement members, and a ratchet mechanism. The inner sleeve can include a threaded proximal portion and a distal end. The first housing portion can be positioned over at least a portion of the inner sleeve. The second housing portion can be positioned proximate to the distal end of the inner sleeve. The plurality of engagement members can be adapted to receive a pedicle screw, and are positionable within the second housing portion. The ratchet mechanism can include an engagement feature to selectively engage the threaded proximal portion of the inner sleeve, and a locking mechanism to selectively lock the engagement feature of the ratchet mechanism against the threaded proximal portion of the inner sleeve.

Ratcheting rapid rod reduction instrument

Implementations described herein may include a system for manipulating implants coupled by a cord. The system may include a tensioner and a counter tensioner. The tensioner may include a nose assembly and a cord lock assembly for applying tension to the cord. The nose assembly may include a piston having a lumen extending therethrough for receiving the cord and a spring positionable in contact with an indicator region of the piston. The counter may be releasably coupleable to a head of an implant at a proximal end thereof and may guide the cord to a port proximate the distal end thereof, the port for receiving the nose assembly. The counter tensioner may enable translation of the implant relative to another implant implanted in an adjacent or nearby vertebrae. The indicator region of the piston may be visible through a window in a tensioner main body and may indicate cord tension when the nose assembly of the tensioner is coupled to the port of the counter tensioner and engaged with the cord.

Surgical cord tensioning devices, systems, and methods

A rod reducer can comprise a reducing mechanism, a hinge mechanism, a handle mechanism and a bearing mechanism. The reducing mechanism can comprise a first elongate member extending along an axis to engage a bone anchor, and a second elongate member configured to slide along the first elongate member to engage a rod. The hinge mechanism can slidably couple the first and second elongate members such that the elongate members can translate against each other. The handle mechanism can comprise handles coupled to the hinge mechanism and configured to cause the first and second elongate members to translate relative to each other. The bearing mechanism can be configured to permit the handles to rotate about the axis independent of the elongate members. Methods of using the rotating rod reducer can include rotating the handles out of the way of adjacent levels of a spinal column being simultaneously reduced.

Rotating rod reducer

Various implants and surgical techniques for dynamic spinal tethering systems are discussed. In an example, a spinal tethering system can comprise a flexible elongate spinal tethering cord and a plurality of vertebral implants connecting the cord across at least four spinal levels. In this example, each vertebral implant of the plurality of vertebral implants can include a dynamic head coupling each vertebral implant to the cord. The dynamic head of each vertebral implant can be configured to share cord tension across multiple spinal levels by releasing a first tension generated at a first level between two vertebral implants of the plurality of vertebral implants to generate a second tension across two spinal levels between three vertebral implants of the plurality of vertebral implants, wherein the second tension is lower than the first tension.

Spinal tethering devices, systems, and methods

An anchor can be coupleable to a bone, where the anchor includes a head, a shank, a first extension, and a second extension. The head can include a distal head portion and a proximal head portion, where the proximal head portion can be open at a proximal end of the head. The shank can extend distally from the distal head portion, where the shank including a threaded portion configured to engage the bone. The second extension can be opposing the first extension, and the second extension can include a second proximal support coupled to a second end of a first elongate portion, where a first proximal support can extend transverse to the longitudinal axis, and the first proximal support portion and the second proximal support portion can be separated in a first condition and can be engaged to transfer forces there between in a second.

Anchoring device with extended tabs

Implementations described herein include a system that may include a deliver device, an annular anchor and an implant. The delivery device may include a distal end, a proximal and a lumen extending from the distal end to the proximal end. The annular anchor may be removably coupleable to the distal end of the delivery device. The annular anchor may be implantable at a target site in a patient via manipulation of the delivery device. The delivery device may be extendable outside the patient when the anchor is implanted at the target site. The implant may be deliverable through the delivery device to the target delivery site and implantable through the annular anchor. The delivery device may be coupled to the annular anchor to control a trajectory of the implant to the target site.

Dynamic stabilization systems and associated methods

Retractors for surgical procedures such as spinal surgical procedures includes a pair of pivotable armatures and a translatable armature. A body for supporting the armatures is provided, with a handle connected thereto. The handle includes a first rotary actuator, wherein a rotation of the first rotary actuator moves the pair of pivotable armatures in opposite arcuate directions, and a second rotary actuator, wherein a rotation of the second rotary actuator translates the translatable armature in a linear direction. Methods of use for the retractors during surgical procedures are also disclosed.

Lateral retractor system and methods of use

Spinal surgical procedures can benefit from a rod reduction instrument with a ratchet lock-out mechanism. The instrument can include an inner shaft, an outer housing and a ratchet mechanism. The inner shaft can include a threaded proximal portion and a distal end that includes a plurality of engagement members adapted to receive a pedicle screw. The outer housing can be slidably received over the inner shaft, and include a top sleeve and a bottom sleeve. The top sleeve can include the ratchet mechanism to selectively engage the threaded proximal portion of the inner shaft and the bottom sleeve can engage a connecting rod. The ratchet mechanism can include an engagement feature to selectively engage the threaded proximal portion of the inner shaft, and a locking mechanism to selectively lock the engagement feature of the ratchet mechanism against the threaded proximal portion of the inner shaft.

Rod reducer ratchet lock-out mechanism

A system, a method, and instruments for manipulating a surgical cord into spinal implants to assist in correcting a spinal deformity are described. The system may include a tensioner, a tensioner extension, and a counter tensioner. One of the instruments can include an elongate body, a dual coupler, and a nose member. The elongate body has a flexible cylindrical member adapted to carry tension along a longitudinal axis, where the flexible cylindrical member is sized to receive a surgical cord through a lumen within the flexible cylindrical member. The dual coupler is disposed on a proximal end of the elongate body, and include a bore for receiving a nose portion of a tensioner and for guiding the surgical cord into the tensioner. The nose member is disposed on a distal end of the elongate body, and be adapted to discharge the surgical cord from the elongate body.

An anchor assembly can be couplable to a bone and can include an anchor and a housing. The anchor can include a shank securable to bone and a head coupled to a proximal portion of the shank.

Bone anchor

A rod reducer can comprise a reducing mechanism, a hinge mechanism, a handle mechanism and a bearing mechanism. The reducing mechanism can comprise a first elongate member extending along an axis to engage a bone anchor, and a second elongate member configured to slide along the first elongate member to engage a rod. The hinge mechanism can slidably couple the first and second elongate members such that the elongate members can translate against each other. The handle mechanism can comprise handles coupled to the hinge mechanism and configured to cause the first and second elongate members to translate relative to each other. The beating mechanism can be configured to permit the handles to rotate about the axis independent of the elongate members. Methods of using the rotating rod reducer can include rotating the handles out of the way of adjacent levels of a spinal column being simultaneously reduced.

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Denver, CO, United States of America

Randall G Mast