Musc Foundation for Research Development

Zimmer Spine, Inc.

Amendia, Inc.

Hitachi Aloka Medical, Ltd.

Blackstone Medical, Inc.

Other

Bruce M Frankel

Mark Evald Semler

Joseph Ruscito

Sergey A Fedorov

Hiroaki Wakabayashi

Scott D Koysh

Kazutoshi Tsuchida

Randall R Baraso

Clinton Walker

Christopher Hapstack

Natalie S Hunter

An expandable vertebral body implant, and methods of assembly and using the implant. The vertebral body implant includes a body with a first end and a second end, a rotating member rotatably coupled to the first end of the body, wherein an end includes a plurality of first notches inset into the rotating member, an extension member moveably coupled to the rotating member, and a locking member positioned on an interior of the body. Methods for assembling and using the vertebral body implant are also disclosed.

Expandable vertebral body replacement device and method

An expandable vertebral body device, system, instrument, and methods of assembly and using the device, system, and instrument are disclosed. The vertebral body device includes a body with a first end and a second end, a first rotating member rotatably coupled to the first end, a second rotating member rotatably coupled to the second end, a first extension member moveably coupled to the first end, and a second extension member moveably coupled to the second end. The expandable cage system comprises a vertebral body device and an insertion instrument. Methods for assembling and using the vertebral body device and instrument are also disclosed.

Expandable vertebral body implants, systems, instruments, and methods of assembly and using the implants, systems, and instruments are disclosed. The vertebral body implant includes a body with a first end and a second end, a first rotating member rotatably coupled to the first end, wherein an end includes a plurality of first notches inset into the first rotating member, a second rotating member rotatably coupled to the second end, wherein an end includes a plurality of second notches inset into the second rotating member, a first extension member moveably coupled to the first end, and a second extension member moveably coupled to the second end. The expandable cage system comprises a vertebral body implant and an insertion instrument. Methods for assembling and using the vertebral body implants and instruments are also disclosed.

A skeletal fixation apparatus may include two or more bodies that are attached to two or more screws that have been inserted into vertebral bodies associated with a patient. The apparatus may also include two or more cylindrical members that are attached to the bodies to control the movement or alignment of the bodies when the skeletal fixation apparatus is being installed in the patient. The apparatus may further include a rod that includes a first curvature and a second curvature. The first curvature may be different than the second curvature and may be based on a medical diagnosis associated with stabilizing the vertebral bodies. The second curvature may enable the bodies to be immovably fastened to the rod in a manner that precludes the cylindrical members from contacting each other or causing a false torque condition to exist when the skeletal fixation apparatus is installed in the patient.

Skeletal bone fixation mechanism

A percutaneous cross connector system for use with implantation rods comprising a rod attachment device comprising a first jaw portion and a second jaw portion. The first jaw portion comprises a first concave surface to engage with a surface of a rod, a first biasing member, and a first pivoting mechanism. The second jaw portion comprises a second concave surface to engage with an opposite surface of the rod from the first jaw portion, a second pivoting mechanism, a second biasing surface, and a second locking surface. The first and second jaw portions can be mated so that the first and second concave surfaces are positioned on opposite sides of the rod, the first and second pivoting mechanisms are aligned to pivot on a common axis, and the first biasing member is engaged against the second biasing surface to drive the second jaw portion against the rod.

Percutaneous rod-to-rod cross connector

A modular head-to-head cross connector or construct extension system comprising a fastener element driven into a bone in a first orientation, a first U-shaped body operable to receive the fastener element and operable to receive a first rod in a first rod receiving channel, and a first compression element driven adjacent to and against the first rod in the first rod receiving channel, thereby engaging the first rod against the fastener element in a second orientation independent of the first orientation of the fastener element. The system further comprises a second U-shaped body operable to receive first compression element and operable to receive a second rod in a second rod receiving channel, and a second compression element driven adjacent to and against the second rod in the second rod receiving channel, thereby engaging the second rod against the first compression element in a third orientation independent of the second orientation.

Percutaneous modular head-to-head cross connector

An anti-splay apparatus having a bridge and frangible connection points for use with mechanical fasteners having a shank portion and a receiving member with opposing arms is provided. The bridge may take a number of forms including a ring, a notched ring, a tube, or a notched tube and the connection points join the opposing arms of the receiving member with the bridge. Also provided is the anti-splay apparatus also having tabs connected between frangible connection points.

Anti-splay apparatus

Skeletal bone fixation rod

Medical diagnostic instruments and systems are provided that include (i) a proximal handle configured and dimensioned to permit an operator to manually grasp the instrument; (ii) an ultrasound probe including a longitudinal shaft extending distally from the handle and terminating in a distal end, and an ultrasound transducer mounted with respect to the longitudinal shaft proximate the distal end thereof, the ultrasound transducer including an array of ultrasonic energy generation elements; and (iii) a tactile feeler probe mounted with respect to the ultrasound probe, the tactile feeler probe including a longitudinal shaft mounted with respect to the longitudinal shaft of the ultrasound probe and extending distally beyond the distal end thereof, and a feeler probe tip (e.g., a ball tip) defined at a distal end of the longitudinal shaft of the tactile feeler probe. Advantageous methods for use of the disclosed instruments and systems are also provided, e.g., for detecting breaches in cortical bones in connection with pedicle screw placement.

Growing community of inventors

Memphis, TN, United States of America

Bruce M Frankel