Patent application number | Description | Published |
20080288071 | Expandable corpectomy device - The present invention describes an expandable vertebral implant and the method of use. The longitudinally expandable vertebral implant includes telescoping sections adapted for incremental expansion and ease of securement at any desired increment in situ, and constructed and arranged to engage opposing vertebrae, while simultaneously permitting easy insertion and removal of a similarly expandible top member. | 11-20-2008 |
20090138089 | Corpectomy implant - The present invention describes an expandable vertebral implant and the method of use. The longitudinally expandable vertebral implant includes telescoping sections adapted for incremental expansion and ease of securement at any desired increment in situ, and constructed and arranged to engage opposing vertebrae. The corpectomy device is a distractible vertebral body replacement for the thoracic and lumbar spine. The device is cylindrical shaped having an inner and outer sleeve made adjustable by use of locking pads formed integral with the outer sleeve for use in engaging parallel circumferential locking grooves formed along the outer side surface of the inner sleeve. | 05-28-2009 |
20100125302 | Locking Polyaxial Ball And Socket Fastener - A polyaxial ball and socket joint that can be locked into a fixed position. The fastening system consists of the polyaxial ball and socket joint used in conjunction with a bone screw having threads on one end for use in anchoring to the spine and a spherical connector on the other end operating as a pivot point about which a connecting assembly moves in a polyaxial fashion. A substantially U-shaped connecting assembly has a lower receptacle that operates as a socket for housing an upper retainer ring and a lower split retaining ring. The socket is receptive to the spherical connector which is inserted through the lower split retainer ring causing a momentary displacement thereof which allows for the positioning of the spherical connector between the upper and lower retainer rings. | 05-20-2010 |
20100137920 | Pedicle screw implant system - A pedicle screw fastening that can be made polyaxial, monoaxial, fixed, or provide a predefined monoaxial placement. The fastening system consists of an anchoring bone screw having threads on one end for use in anchoring to the screw to the spine and a spherical connector on the other end operating as a pivot point about which a U-shaped or side loading connecting assembly is used to secure to a connecting rod for use in stabilization of a spine. The connecting assembly, for receipt of a spinal connecting rod, includes a biased retainer ring for maintaining a positive tension between the connecting assembly and the anchored screw. The system allows for an improved manufacturing step wherein the threaded shank of a bone screws can be passed through a lower portion of the connecting assembly allowing a variety of bone screw sizes to be used with a common sized connector. | 06-03-2010 |
20100312288 | Thread-thru polyaxial pedicle screw system - A thread-thru polyaxial pedicle screw fastening system. The fastening system consists of an anchoring bone screw having threads on one end for use in anchoring to the screw to the spine and a spherical connector on the other end operating as a pivot point about which a U-shaped connecting assembly moves in a polyaxial fashion. The U-shaped connecting assembly, for receipt of a spinal connecting rod, has a biased retainer ring for maintaining a positive tension between the connecting assembly and the anchored screw. The system allows for an improved manufacturing step wherein the threaded shank of a bone screws can be passed through a lower portion of the connecting assembly allowing a variety of bone screw sizes to be used with a common sized connector. A resilient component positioned between the upper retainer ring and the connecting assembly permits relative predetermined placement and retention of the spherical connector relative to the connector assembly due to the force generated by the resilient component and frictional engagement between the surfaces of spherical connector, the retainer ring and the connector assembly. The polyaxial ball and socket can be locked into a fixed position. | 12-09-2010 |
20110009911 | Locking polyaxial ball and socket fastener - The fastening system consists of the polyaxial ball and socket joint used in conjunction with a bone screw having threads on one end for use in anchoring to the spine and a spherical connector on the other end operating as a pivot point about which a connecting assembly moves in a polyaxial fashion. A substantially U-shaped connecting assembly has a lower receptacle that operates as a socket for housing an upper retainer ring and a lower split retaining ring. The socket is receptive to the spherical connector which is inserted through the lower split retainer ring causing a momentary displacement thereof which allows for the positioning of the spherical connector between the upper and lower retainer rings. A resilient component positioned between the upper retainer ring and the connecting assembly permits relative predetermined placement and retention of the spherical connector relative to the connector assembly due to the force generated by the resilient component and frictional engagement between the surfaces of spherical connector, the upper and lower retainer rings and the connector assembly. The polyaxial ball and socket can be locked into a fixed position. | 01-13-2011 |
20110040336 | Thread-thru polyaxial pedicle screw system - A thread-thru polyaxial pedicle screw fastening system. The fastening system consists of an anchoring bone screw having threads on one end for use in anchoring to the screw to the spine and a spherical connector on the other end operating as a pivot point about which a U-shaped connecting assembly moves in a polyaxial fashion. The U-shaped connecting assembly, for receipt of a spinal connecting rod, has a biased retainer ring for maintaining a positive tension between the connecting assembly and the anchored screw. The system allows for an improved manufacturing step wherein the threaded shank of a bone screws can be passed through a lower portion of the connecting assembly allowing a variety of bone screw sizes to be used with a common sized connector. | 02-17-2011 |
20110208251 | Locking polyaxial ball and socket fastener - A polyaxial ball and socket joint that can be locked into a fixed position. The fastening system consists of the polyaxial ball and socket joint used in conjunction with a bone screw having threads on one end for use in anchoring to the spine and a spherical connector on the other end operating as a pivot point about which a connecting assembly moves in a polyaxial fashion. A substantially U-shaped connecting assembly has a lower receptacle that operates as a socket for housing an upper retainer ring and a lower split retaining ring. The socket is receptive to the spherical connector which is inserted through the lower split retainer ring causing a momentary displacement thereof which allows for the positioning of the spherical connector between the upper and lower retainer rings. | 08-25-2011 |
20110307012 | Spinous Process Cross-Link - A prosthetic spinous process cross-link implant for the replacement of a posterior vertebral element. The implant includes a cross link body member with a pair of adjustable link arms connected to the cross link body to size the implant to specific anatomical configurations. The implant includes a rod clamp that is spring loaded to a forward position such that capturing a spinal rod on to the adjustable link arms to achieve a snap on effect thereby increasing the ease of installation. A plurality of spinous process cross-link implants can be assembled as a kit wherein the set includes a group of spinous process type yokes and bridge type yokes each group including both fixed and variable sized implants. | 12-15-2011 |
20130110177 | Top loading polyaxial ball and socket fastener | 05-02-2013 |
20130110180 | Top loading polyaxial ball and socket fastener with saddle | 05-02-2013 |
20130345754 | Spring clip bottom loading polyaxial ball and socket fastener - The bottom loading fastening system that consists of the polyaxial ball and socket joint used in conjunction with a bone screw having threads on one end for use in anchoring to the spine and a spherical connector on the other end operating as a pivot point about which a connecting assembly moves in a polyaxial fashion. A substantially U-shaped connecting assembly has a lower receptacle having a retainer ring within a retaining ring groove for use in securing the spherical connector to the connecting assembly. | 12-26-2013 |