Alphatec Spine, Incorporated

Graham Witherby

James Coleman Lee

James Lee

Andrew W Rajek

David Considine

Steven Vidmar

Disclosed herein are surgical retractors and methods of using such surgical retractors where the surgical retractors include a base portion and two retractor blades. The base portion has (a) two extensions, each extension having a receiving area, and (b) and one or more engagement portions. Each retractor blade includes both a blade portion with proximal and distal ends and an arm portion extending from the proximal end of the blade portion. Each arm portion is received by a respective receiving area.

Surgical retractors and methods of using the same

A surgical system may include a conductive stylet with a distal end advanceable into bone material and a proximal end coupled to a stylet hub. A handle is non-removably attached to the stylet hub, and removably attachable to an insulative cannula hub. The cannula hub is non-removably attached to a conductive cannula that surrounds the stylet when the handle is attached to the proximal end of the insulative cannula hub. An outer insulative sheath is slideably engaged to insulative cannula hub, and has a radio-opaque distal tip. An electrical signal source may be applied to the stylet hub to conduct a pedicle integrity assessment. The handle and stylet may be removed from the cannula assembly, leaving the cannula assembly in place at the surgical site.

Stimulating targeting needle

A surgical system may include a conductive stylet with a distal end advanceable into bone material and a proximal end coupled to a stylet hub. A handle is non-removably attached to the stylet hub, and removably attachable to an insulative cannula hub. The cannula hub is non-removably attached to a conductive cannula that surrounds the stylet when the handle is attached to the proximal end of the insulative cannula hub. An outer insulative sheath is slideably engaged to insulative cannula hub, and has a radiopaque distal tip. An electrical signal source may be applied to the stylet hub to conduct a pedicle integrity assessment. The handle and stylet may be removed from the cannula assembly, leaving the cannula assembly in place at the surgical site.

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Carlsbad, CA, United States of America

Graham Witherby