Marc A Silski

US Patent:

8152851, Apr 10, 2012

Filed:

Sep 2, 2008

Appl. No.:

12/202878

Inventors:

Richard Mueller - Carlsbad CA, US
Andrew Budd - Clinton OH, US
Marc Silski - West Bloomfield MI, US
Nickolas G. Kriska - North Canton OH, US

Assignee:

Theken Spine, LLC - Akron OH

International Classification:

A61F 2/44

US Classification:

623 1715, 623 1716, 623 1711

Abstract:

An adjustable length corpectomy device is provided with a means for providing bidirectional length adjustment and a means for selectively fixing the length of the implant.

US Patent:

20060195095, Aug 31, 2006

Filed:

Jan 6, 2006

Appl. No.:

11/327621

Inventors:

Richard Mueller - Macedonia OH, US
Andrew Budd - Uniontown OH, US
Marc Silski - Hartville OH, US

Assignee:

Theken Surgical, LLC - Akron OH

International Classification:

A61F 2/30
A61B 17/56

US Classification:

606061000

Abstract:

An adjustable spinal implant is provided for use in connecting elongate members as well as in vertebral spacers such as corpectomy devices, intervertebral fusion devices, and other prostheses. The implant may have fittings on either end comprising fixed or articulating jaws , endplates, or other engagement structures. The implant comprises a housing with an internal rotor ; an extending shaft ; and a locking collar . The extending shaft has an external helical groove that meshes with an internal helical groove on the rotor . Length adjustment occurs by transforming axial movement of the extending shaft into a rotary movement of the rotor via helical engagement. The locking collar comprises protrusion engaging grooves of rotor , thus providing a simple, positive locking mechanism without requiring the surgeon to apply excessive force to lock the length.

US Patent:

20060217712, Sep 28, 2006

Filed:

Mar 24, 2004

Appl. No.:

10/550329

Inventors:

Richard Mueller - Macedonia OH, US
Andrew Budd - Uniontown OH, US
Marc Silski - Hartville OH, US

International Classification:

A61F 2/30

US Classification:

606061000

Abstract:

An adjustable spinal implant () is provided for use in connecting elongate members () as well as vertebral spacers such as corpectomy devices, intervertebral fusion devices, and other prostheses. The implant () may have fittings () on either end comprising fixed () or articulating () jaws, endplates, or other engagement structures. The implant () comprises a housing () with an internal rotor (); an extending shaft (); and a locking collar (70). The extending shaft () has an external helical groove () that meshes with an internal helical groove () on rotor (). Length adjustment occurs by transforming axial movement of the extending shaft () into a rotary movement of the rotor () via helical engagement. The locking collar () comprises protrusion () engaging grooves () of rotor (), thus providing a simple, positive locking mechanism without requiring the surgeon to apply excessive force to lock the length.