Patent application number | Description | Published |
20080288000 | Cervical plate locking mechanism and associated surgical method - The cervical plate locking mechanism of the present invention is elegant in its design and effective in its performance, and utilizes a plate with holes that each incorporate a locking lip structure and locking screws that each incorporate a head portion having petal structures that are outwardly biased prior to insertion via an internally-disposed c-ring or the like. Advantageously, the lead-in torque of each of the locking screws is less than the lead-out torque of each of the locking screws. Thus, reverse threading or backing out is prevented. | 11-20-2008 |
20080288001 | CERVICAL PLATE LOCKING MECHANISM AND ASSOCIATED SURGICAL METHOD - The cervical plate locking mechanism of the present invention is elegant in its design and effective in its performance, and utilizes a plate with holes that each incorporate a locking lip structure and locking screws that each incorporate a head portion having petal structures that are outwardly biased prior to insertion via an internally-disposed c-ring or the like. Advantageously, the lead-in torque of each of the locking screws is less than the lead-out torque of each of the locking screws. Thus, reverse threading or backing out is prevented. Alternatively, the cervical plate locking mechanism of the present invention utilizes a locking plate having petal structures that are inwardly biased prior to insertion of the head portion of the locking screws via an externally-disposed c-ring or the like. | 11-20-2008 |
20090216282 | SYSTEMS AND METHODS FOR RETAINING A PLATE TO A SUBSTRATE WITH AN ASYNCHRONOUS THREAD FORM - The present disclosure provides systems and methods for retaining a plate, such as a cervical plate, to a substrate, such as bone, through a locking screw with upper asynchronous threads and lower cancellous threads. The present invention utilizes the locking screw with cancellous-type threads to draw the screw into the substrate. The screw is operable to retain a plate to the substrate and is configured to gall and lock to the plate through the upper threads which are out-of-phase with corresponding threads on the plate thereby preventing reverse threading or backing out of the screw. | 08-27-2009 |
20090248082 | SURGICAL SYSTEMS AND METHODS FOR JOINT FIXATION - The present disclosure provides surgical systems and method for joint fixation device with a self-locking mechanism to provide stabilization and immobilization of a joint, such as a facet joint or the like. The present invention includes an elongated fixation mechanism that is placed through an opening in a joint and inserted into a retention mechanism. The retention mechanism is operable to provide a self-locking mechanism to the elongated fixation mechanism to provide fixation of the joint. In an exemplary embodiment, the present invention can be utilized by a surgeon through a minimally-invasive surgical procedure to provide facet joint fixation. | 10-01-2009 |
20100087866 | MINIMALLY INVASIVE SURGERY PEDICLE SCREW SYSTEM - The present invention provides a minimally invasive surgery pedicle screw system, including: a plurality of slotted guides that are selectively inserted through one or more surgical incisions; a plurality of pedicle screws selectively coupled to the plurality of slotted guides that are selectively secured to one or more bony anatomical structures; a pendulum mechanism selectively translatably and pivotably coupled to one of the plurality of slotted guides; and a connecting rod selectively translatably and pivotably coupled to one of the plurality of slotted guides; wherein the pendulum mechanism is selectively coupled to the connecting rod. The connecting rod is selectively secured to one or more of the plurality of pedicle screws. | 04-08-2010 |
20100094354 | MONOAXIAL AND POLYAXIAL PEDICLE SCREW - The present invention relates to an alternatively monoaxial and polyaxial pedicle or other similar surgical screw that can be used in a polyaxial manner and then locked or otherwise secured at a desired angle or orientation, i.e. used in a monoaxial manner, prior to engaging a rod or other similar stabilization member with the pedicle or other similar surgical screw. In other words, the present invention provides a pedicle or other similar surgical screw that can be selectively used in either a monoaxial or polyaxial configuration, as is desirable in a particular application or at a particular point of a given surgical procedure. | 04-15-2010 |
20100094356 | INTERLOCKING BONE SCREW AND WASHER CONCEPTS - The present disclosure provides a cannulated bone screw system including a screw with a threaded portion, a non-threaded portion, and a first plurality of teeth spaced apart from a screw head; and a washer with an interior portion with a second plurality of teeth and an opening and an outer portion with a plurality of spikes. The first plurality of teeth are on an inferior convex surface; wherein the second plurality of teeth are on a superior concave surface; and wherein the first plurality of teeth and the second plurality of teeth are operable to mate to prevent the screw from backing out of the washer while allowing the cannulated bone screw system to conform/pivot in order to accommodate different bone morphologies. | 04-15-2010 |
20100137910 | FACET DISTRACTION DEVICE, FACET JOINT IMPLANT, AND ASSOCIATED METHODS - In various exemplary embodiments, the present invention provides devices, implants, and methods for distracting and/or stabilizing a facet joint of the spine of a patient or other similar joint or bony structures, optionally including modifying the facet joint and implanting an implant in the facet joint so as to distract the foramen in order to reduce compression on nerve roots. | 06-03-2010 |
20100234905 | FACET JOINT RESURFACING IMPLANT AND ASSOCIATED SURGICAL METHODS - The present invention provides devices and methods for resurfacing a facet joint of a spine of a patient, including: a first portion that is selectively coupled to an opposed surface of a superior facet of the facet joint of the spine of the patient; and a second portion that is selectively coupled to an opposed surface of an inferior facet of the facet joint of the spine of the patient; wherein the first portion is allowed a predetermined degree of movement with respect to the second portion. These devices and methods find applicability to other anatomical joints as well. | 09-16-2010 |
20150018956 | SURGICAL IMPLANT DEVICES INCORPORATING POROUS SURFACES - A surgical implant device, comprising: a body portion; and one or more surfaces comprising a plurality of protruding structures; wherein the body portion and the one or more surfaces comprising the plurality of protruding structures are integrally formed. The one or more surfaces comprising the plurality of protruding structures are formed by an additive manufacturing process. The plurality of protruding structures comprise a plurality of needles. Optionally, the surgical implant device comprises one of an anterior lumbar interbody fusion cage, a posterior lumbar interbody fusion cage, a transforaminal lumbar interbody fusion cage, an oblique lumbar interbody fusion cage, a cervical cage, and a bone screw. | 01-15-2015 |