Patent application number | Description | Published |
20110264218 | INTERVERTEBRAL BODY IMPLANT, INSTRUMENT AND METHOD - Interbody implant systems and methods of implant interbody implants are described. In one aspect, an implant includes a body have a distal end portion and a proximal end portion and a first articulation surface formed at a distal end of the distal end portion. An insertion instrument includes an elongate shaft having a proximal end portion and a distal end portion; and a second articulation surface formed at a distal end of the distal end portion. The second articulation surface is configured to interface with the first articulation surface. An attachment member is configured to connect the implant to the insertion instrument. The attachment member is actuatable to compress the first and second articulation surfaces together in a locked configuration with sufficient force to prevent relative rotation between the first and second articulation surfaces. The attachment member is actuatable to reduce an amount of compression force existing in the locked configuration to place the first and second articulation surfaces in an unlocked configuration such that the first articulation surface can rotate relative to the second articulation surface. | 10-27-2011 |
20110301710 | INTERVERTEBRAL IMPLANT FACILITATING UNILATERAL PLACEMENT, INSTRUMENTS AND METHODS - Implants, tools and methods for performing unilateral posterior lumbar interbody fusion are provided. An interbody implant includes a body having a top and bottom surface extending along a length thereof; and first and second side surfaces extending between the top and bottom surfaces on opposite sides of the body. The height of the first side surface is greater than the height of the second side surface. | 12-08-2011 |
20120179207 | SURGICAL PLATE SYSTEM AND METHOD - A surgical plate system, components and methods of using are described. A surgical plate system includes a plate having an anterior surface, a posterior surface, a longitudinal axis, a transverse axis and a through hole passing through the anterior and posterior surfaces. A variable fastener is configured and dimensioned to connect to the plate, the variable fastener having a head and a shaft extending distally from the head. The head is configured to assume different proximal end diameters. The head, in a first configuration allows inward flexing to reduce a diameter of the head to allow the head to pass through an entrance opening of the through hole. In a second configuration, the head is prevented from flexing inwardly thereby preventing the head from backing out of the entrance opening, while allowing articulation of the head, within the through hole, relative to the plate. | 07-12-2012 |
20120245641 | Devices, Systems and Methods of Attaching Same to the Spine - Systems and method for fixation to a spinal column are described. A system includes a plate having an anterior surface, a posterior surface, a longitudinal axis, a transverse axis and a through hole passing through the anterior and posterior surfaces; and a dynamic fixator interface member configured and dimensioned to connect to the plate within the through hole and to axially slide relative to the plate in directions of the longitudinal axis, and additionally, to rotate relative to the plate in directions about the transverse axis. | 09-27-2012 |
20120265311 | Intervertebral Implant Facilitating Unilateral Placement, Instruments and Methods - Implants, tools and methods for performing unilateral posterior lumbar interbody fusion are provided. An interbody implant includes a body having a top and bottom surface extending along a length thereof; and first and second side surfaces extending between the top and bottom surfaces on opposite sides of the body. The height of the first side surface is greater than the height of the second side surface. | 10-18-2012 |
20140046372 | Systems, Assemblies and Methods for Spinal Derotation - Systems, assemblies, components and methods for correcting alignment of one or more vertebrae of a spine are provided. A first elongate derotator member includes a first elongate element having a first proximal end portion and a first distal end portion. The first distal end portion is releasably engageable with a first implant implanted in one of the vertebrae. A second elongate derotator member comprising a second elongate element is releasably engageable with a second implant implanted in the same vertebra. A transverse member is engageable with the first and second elongate elements. A first channel extends axially through the first elongate element and a second channel extends axially through the second elongate element such that a proximal end portion of the first implant can be accessed from a proximal end portion of the first elongate element by inserting a tool through the first channel and a proximal end portion of the second implant can be accessed from a proximal end portion of the second elongate element by inserting the tool or another tool through the second channel. | 02-13-2014 |
20140046374 | Staged Locking of Surgical Screw Assembly - A surgical screw assembly including: a fastener including an elongate shaft having a proximal end and a distal end and a head at the proximal end. A tulip having a an internal bearing surface is provided. A distal end of the tulip has a bore therethrough defining the internal bearing surface. Locking enhancement features are configured to cooperate with the head, such that, in an unlocked configuration, the head is movable relative to the tulip; in a provisionally locked configuration, the locking enhancement features engage the head with a first polyaxial grip strength; and in a finally locked configuration, the locking enhancement features engage the head with a second polyaxial grip strength greater than the first polyaxial grip strength. | 02-13-2014 |
20140046385 | Locking Force Augmentation Features for Surgical Screw Assembly - A surgical screw assembly is provided that includes a fastener including an elongate shaft having a proximal end and a distal end and a head at the proximal end. A tulip having an internal bearing surface and a distal end having a bore therethrough is provided to allow the distal end of the elongate shaft to pass therethrough. A first step feature located at a distal end portion of the bore and extending inwardly therefrom reduces the diameter of the bore to allow the distal end of the elongate shaft to pass therethrough, but prevents passage of the head therethrough. A second step feature located at a distal end portion of the bore, distally of the first step feature, further reduces the diameter of the bore to a dimension less than a dimension established by the first step feature, the further reduced dimension allowing the distal end of the elongate shaft to pass therethrough, but preventing passage of the head therethrough. | 02-13-2014 |
20140046386 | Uniplanar Surgical Screw Assembly - Uniplanar surgical screw assemblies described include: a fastener including an elongate shaft; a saddle-shaped tulip having a tulip having a bore therethrough dimensioned to allow the distal end of the elongate shaft to pass therethrough, but to prevent passage of the head therethrough; and one or more features for limiting angular movement of the shaft, relative to the tulip, to one plane. | 02-13-2014 |
20150066148 | Intervertebral Implant Facilitating Unilateral Placement, Instruments and Methods - Implants, tools and methods for performing unilateral posterior lumbar interbody fusion are provided. An interbody implant includes a body having a top and bottom surface extending along a length thereof; and first and second side surfaces extending between the top and bottom surfaces on opposite sides of the body. The height of the first side surface is greater than the height of the second side surface. | 03-05-2015 |