Patent application number | Description | Published |
20100152779 | INTER-TRANSVERSE PROCESS SPACER DEVICE AND METHOD FOR USE IN CORRECTING A SPINAL DEFORMITY - An inter-transverse process spacer device for placement between two adjacent transverse processes, includes a spacer member with deformable first and second ends and may include a connector. The inter-transverse process spacer device may also include a flexible, fillable container for containing an injectable material that is compressible following implantation. The container is impermeable to the material it will be filled with. A structural mesh, for example, made of PET fabric and interwoven shape-memory alloy wire, provides structure for and containment of the container, as well as shape control of the inter-transverse process spacer device. The material can be injected into the container through a conduit. The inter-transverse process spacer device is sized and configured to allow for placement between adjacent transverse processes to produce a lateral force for correcting a spinal deformity. A method for correcting a spinal deformity using the inter-transverse process spacer device is also disclosed. | 06-17-2010 |
20100198268 | LOW PROFILE BONE SCREW EXTENDER AND ITS APPLICATION IN MINIMUM INVASIVE SPINAL SURGERIES - A tissue extender includes a ring defining a proximal end opening to engage a head of a subcutaneous screw, a first extender portion coupled to the ring at a proximal end of the first extender portion, and a second extender portion coupled to the ring at a proximal end of the second extender portion. The first extender portion includes a first coupling portion disposed at a distal end of the first extender portion, and the second extender portion includes a second coupling portion at a distal end of the second extender portion. The first and second extender portions define two side openings disposed on opposite sides of the tissue extender. The distal ends of the first and second extender portions together define a distal end opening. The first coupling portion engages the second coupling portion when the tissue extender is in an extended state. The distal end opening is larger in the extended state than in an unextended state. | 08-05-2010 |
20100262241 | Prosthesis and Method for Replacing Degenerative Vertebral Portions - A posterior arch prosthesis according to the present invention includes a main body, two transverse protuberances extending transversely from either side of the main body, articulating surfaces formed on each of the transverse protuberances, and a posterior protuberance extending posteriorly from the main body. The posterior protuberance is attached to a first vertebra from which the natural posterior arch has been removed such that the articulating surfaces are arranged in articulating contact with surfaces on an adjacent, second vertebra. The posterior protuberance includes an attachment to which native structure may be reattached upon attachment of the prosthesis to the first vertebra. | 10-14-2010 |
20100280553 | Expandable Spinal Rods and Methods of Use - A spinal rod having first and second end members. The end members may be flexible or rigid. An expandable intermediate section is positioned between the first and second end members. The intermediate section may be axially expandable upon the introduction of a substance into a port that may be located in either of the first and second end members or the intermediate section. The intermediate section may be expandable between a first size, where the first and second end members are spaced a first distance apart, and a second enlarged size, where the first and second end members are spaced a second greater distance apart. | 11-04-2010 |
20140194932 | EXPANDABLE SPINAL RODS AND METHODS OF USE - A spinal rod having first and second end members. The end members may be flexible or rigid. An expandable intermediate section is positioned between the first and second end members. The intermediate section may be axially expandable upon the introduction of a substance into a port that may be located in either of the first and second end members or the intermediate section. The intermediate section may be expandable between a first size, where the first and second end members are spaced a first distance apart, and a second enlarged size, where the first and second end members are spaced a second greater distance apart. | 07-10-2014 |
Patent application number | Description | Published |
20090198290 | Non-Clamping Fastening Mechanism With Anti-Splay Feature - A device for attaching an elongate support member to the spinal column includes a head portion and a fastening member. The head portion may have a U-shaped portion defining a transverse passage therethrough. The passage may be sized to receive a portion of the elongate support member. The head portion may have an opening between a pair of spaced apart arm portions, the arm portions having end surfaces and having inwardly facing threads. The device also may include a fastening member comprising a body portion having threads sized to interface with inwardly facing threads on the head portion, the body portion defining a longitudinal axis. The fastening member also may include a flange portion adjacent the body portion. The flange portion may extend outwardly about the longitudinal axis to define a circular flange perimeter. The flange portion may include a transversely extending protruding portion and an angled protruding portion. | 08-06-2009 |
20090287255 | Methods and Devices for insertion of Tethers Through Subcutaneous Screw Heads - A method of securing vertebrae includes inserting a first pedicle screw into a first pedicle of a first vertebra. The first pedicle screw includes a first channel running perpendicular to a first central axis of the first pedicle screw. The first pedicle screw has a first engagement structure. The method further includes inserting a second pedicle screw into a second pedicle of a second vertebra. The second pedicle screw includes a second channel running perpendicular to a second central axis of the second pedicle screw. The second pedicle screw has a second engagement structure. The method also includes inserting a guidewire through the first and second channels, threading a tether attached to an end of the guidewire through the first and second channels, securing the tether to the first pedicle screw, applying tension to the tether, and securing the tether to the second pedicle screw. | 11-19-2009 |
20090292362 | INTERVERTEBRAL IMPLANT AND METHODS OF IMPLANTATION AND MANUFACTURE - In one aspect, an intervertebral prosthetic device for implantation within a disc space between adjacent first and second vertebral endplates includes a body including a main body with an outer surface bearing portion configured to interface with and articulate relative to one of the first and second vertebral endplates. It also comprises an orientation protrusion shaped in a manner to at least partially inhibit rotation of the body in the disc space. The body is sized in at least one direction to fit inside a boundary defined by a travel path of the first vertebra relative to the second vertebra, the travel path forming an arc about a center of rotation of the first vertebra, the travel path being spaced from the center of rotation a distance substantially equivalent to the distance from the center of rotation to the second vertebral endplate. | 11-26-2009 |
20090326658 | INTERVERTEBRAL PROSTHETIC DISC AND METHOD OF INSTALLING SAME - An intervertebral prosthetic disc that is configured to be installed within an intervertebral space that can be established between an inferior vertebra and a superior vertebra is disclosed. The intervertebral prosthetic disc includes an inferior articular half that can be configured to engage the inferior vertebra and a superior articular half that can be configured to engage the superior vertebra. The inferior articular half can be configured to cooperate with the superior articular half to allow relative angular motion between the inferior vertebra and the superior vertebra when installed. Further, the intervertebral prosthetic device can be sized and shaped to pass through a psoas muscle without injuring a spinal cord or a sympathetic chain. | 12-31-2009 |