55 results about "Facet joint" patented technology

An access device for accessing an intervertebral disc having an outer shield comprising an access shield with a larger diameter (˜16-30 mm) that reaches from the skin down to the facet line, with an inner shield having a second smaller diameter (˜5-12 mm) extending past the access shield and reaches down to the disc level. This combines the benefits of the direct visual microsurgical / mini open approaches and the percutaneous, “ultra-MIS” techniques.

A method for performing spinal surgery may include forming an access corridor through an aspect of a facet joint of a patient between an inferior articular process of a vertebra and a superior articular process of a vertebra, wherein at least an aspect of the inferior articular process is preserved on a medial side of the access corridor and at least an aspect of the superior articular process is preserved on a lateral side of the access corridor.

Methods and systems are disclosed for accessing and treating the interior of the facet joint for vertebral distraction and immobilization. The systems include a number of tools that facilitate access to the facet joint, distraction of the articulating decortication of the articulating surfaces, and delivery of implants and agents into the facet joint for fusion.

The implant device for performing posterior spinal arthrodesis at a facet joint is in the form of a flat element of constant thickness. The element has reliefs on each of its faces so as to form an anchor associated with at least one complementary anchor, such as a screw with a diameter greater than the thickness of the element. The complementary anchor can be screwed into the flat element such that at least some of its threads protrude from the faces. The element has a U-shape with a transverse part from which two branches extend. On the proximal side, the free ends of the branches have retention devices, on the inner side of the U so as to permit the screwing and insertion of the screw between the branches.

Systems for distracting a facet joint and positioning a permanent implant in the joint are disclosed. The implants serve to retain a distracted position of the facet joint which is achieved with positioning of the leading end of a distraction tool in the facet joint and then distracting or enlarging the joint a desired amount. The permanent implant could be part of the distraction mechanism which can be separated from the delivery tool once the joint has been distracted or an auxiliary implant may be positioned before the distraction mechanism is removed from the distracted joint. The permanent implants can be solid, mechanical devices that may have fixation means thereon to hold them in place or injected fluids such as hydrogels or fluids confined within balloons.

A spinal joint distraction system is disclosed and may include a driver assembly with a tubular shaft, a pair of implant holder arms, an implant distractor, an internal actuator, and a distractor knob, the system also including a delivery device with a tubular shaft, a receiving assembly, and a pair of forks, where the delivery device is adapted for slidable insertion of the driver assembly, the system also including an implant, a chisel, and an injector. Several embodiments of an implant are disclosed as well a method of placing an implant.

A surgical bone cutting system includes a trajectory guide and an osteotome or trepanation tool with a generally square cutting tip that creates a corridor through bone, for example, in the context of spine, through a facet joint or other vertebral structure and to the disc space between two vertebrata for any of a variety of surgical procedures, including but not limited to disc prep and cage insertion. The osteotome fits into the trajectory guide to contact bone and effect creating a bony corridor. In some embodiments, the trajectory guide includes a cylindrical allograft collection chamber, and the trajectory guide and osteotome fit into standard tubular retractors and are agnostic with respect to receiving standard drill bits or a powered auger insertable through a center through channel.

A spinal joint distraction system is disclosed and may include a delivery device, a driver assembly, and an internal actuator, where the driver assembly is adapted to be hold an implant and be sleevably inserted into the delivery device and the internal actuator is adapted to advance an implant distractor to distract the implant, the system also including an implant, a chisel, an injector, a gripping tool, and a dilator set. Several embodiments of an implant are disclosed as well as a method of placing an implant.

A method for implanting an intrafacet implant includes making an incision, advancing an instrument assembly through the incision and to a facet joint. The instrument assembly includes a guide having a lumen extending therethrough. The method includes anchoring the guide at the facet joint, advancing an intrafacet implant to the facet joint through the guide using an inserter, and countersinking the intrafacet implant within the facet joint using the inserter.

A spinal joint distraction system for treating a facet joint including articular surfaces having a contour is disclosed and may include a delivery device including a generally tubular structure adapted to engage a facet joint, an implant adapted to be delivered through the delivery device and into the facet joint, the implant comprising two members arranged in opposed position, and an implant distractor comprising a generally elongate member adapted to advance between the two members of the implant causing separation of the members and distraction of the facet joint, wherein the implant is adapted to conform to the shape of the implant distractor and / or the articular surfaces of the facet upon being delivered to the facet joint. Several embodiments of a system, several embodiments of an implant, and several methods are disclosed including a method for interbody fusion.

Devices and methods for improved controlled and targeted decortication of the bone of a spinal facet joint are provided. In one aspect, a decortication tool is provided. The decortication tool may include a shaft with proximal and distal end portions. A handle may be connected to the proximal end portion of the shaft. A decortication head may be coupled to the distal end portion of the shaft. In another aspect, a multi-use instrument for use in a spinal system is provided. The instrument may include a body including opposing first and second sides, and opposing first and second surfaces. A cavity may be defined in the body, the cavity being open to the second surface. The instrument may include a bar attached to the second side of the body. A portion of the bar may extend beyond the second surface of the body.

The present invention provides a fusion door fixation device and spinal internal fixation system, comprising a fixation plate body and an optional fusion plate; the fixation plate body comprises an upper fixation plate for fixing the upper lamina at the lamina door, a lamina door support plate for supporting, and a lower fixation plate for fixing the lower lamina at the lamina door, which are connected in sequence. The lower fixation plate is provided with a second fusion hole, in which a second fusion screw is provided. The second fusion screw passes through the vertebral body at the current level and is fixed to the vertebral body at the next level; the fusion plate is fixed to the vertebral body at the current level and is located on the opposite side of the lower fixation plate. The fusion plate is provided with a first fusion hole, in which a first fusion screw is provided. The first fusion screw passes through the vertebral body at the current level and is fixed to the vertebral body at the next level. The fusion screw is used to fix the lamina to the lamina at the next level, thereby achieving rigid fixation between the facet joints while maintaining stable support, providing favorable conditions for fusion between the vertebral bodies.

A trans-facet procedure for preparing a patient for oblique lateral lumbar interbody fusion (OLLIF). The preparation procedure includes providing a kit with instruments for accessing Kambin's triangle through bone at nominal approaches preferred for the OLLIF procedure, and providing instructions for the procedure on a non-transitory tangible medium.

A spinal joint distraction system is disclosed and may include a delivery device, a driver assembly, and an internal actuator, where the driver assembly is adapted to be hold an implant and be sleevably inserted into the delivery device and the internal actuator is adapted to advance an implant distractor to distract the implant, the system also including an implant, a chisel, an injector, a gripping tool, and a dilator set. Several embodiments of an implant are disclosed as well a method of placing an implant.

A system may be configured for facet fixation and may include a cap configured to span a vertebral facet joint. The cap may include a distal surface configured to seat against a bone proximate the vertebral facet joint. The system may also include a fastener configured to secure the cap to the vertebral facet joint. The cap may include an indicator configured to move from a first position to a second position in response to engagement of the distal surface with the bone.

The implant device for performing posterior spinal arthrodesis at a facet joint is in the form of a flat element of constant thickness. The element has reliefs on each of its faces so as to form an anchor associated with at least one complementary anchor, such as a screw with a diameter greater than the thickness of the element. The complementary anchor can be screwed into the flat element such that at least some of its threads protrude from the faces. The element has a U-shape with a transverse part from which two branches extend. On the proximal side, the free ends of the branches have retention devices, on the inner side of the U so as to permit the screwing and insertion of the screw between the branches.

The utility model relates to the technical field of spine reduction appliances, in particular to a spine posterior fracture dislocation reduction device which is particularly suitable for cervical and thoracic section complex facet joint dislocation interlocking difficult to restore. Comprising a distraction assembly and an extension sleeve. The opening assembly comprises an adjusting rod and two sleeves arranged on a rod body of the adjusting rod. The two sleeves are parallel to each other, at least one sleeve can slide in the axis direction of a rod body of the adjusting rod, and the sleeves are detachably arranged on the rod body of the adjusting rod; the extension sleeve is detachably connected with the sleeve, and a screw tail cap clamping opening is formed in the end, away from the adjusting rod, of the extension sleeve. According to the vertebral pedicle screw, the facet joint between vertebral bodies can be conveniently expanded, the screw tightening device can stretch into the sleeve to install the nut and the locking nut in the tail cap of the vertebral pedicle screw, and then the facet joint expanding and resetting operation is completed.

The utility model discloses an implanting device for a facet joint. The implanting device comprises a guide mechanism and a magnetic fixing mechanism, the guide mechanism comprises a metal guide plate; a positioning through groove is formed in the metal guide plate, and a first auxiliary fixing groove and a second auxiliary fixing groove are formed in the two sides of the positioning through groove; a first movable plate and a second movable plate are further included, the first movable plate is provided with main part holes in the positions corresponding to the positioning through grooves, and the first movable plate is provided with threaded fixing holes in the positions corresponding to the first auxiliary fixing grooves and the second auxiliary fixing grooves; the magnetic fixing mechanism comprises a metal gasket, a mounting hole formed in the metal gasket and a magnetic main part connected with the metal gasket, the magnetic main part comprises a fixing column connected with the metal gasket and a magnetic core containing hole formed in the fixing column, and a magnetic lock cylinder is arranged in the magnetic core containing hole. The device is simple in structure, can relieve or cure pain symptoms, does not need to sacrifice the motion range of joints, does not need complex joint prostheses, and is easy to operate.

This utility model relates to the field of orthopedic implant technology and discloses a prosthesis for defects after partial atlas resection. It aims to solve the problems of existing technologies, such as the lack of atlas prosthesis implants, long recovery times after autologous bone grafting, and the ineffective fixation of titanium mesh implants. This utility model includes a prosthesis that replaces the atlas, with bone screw holes to accommodate bone screw fixation contact points. The prosthesis includes an outer frame, which is a porous tubular or porous columnar structure. The cavity of the porous tubular structure is filled with autologous bone, allogeneic bone, or artificial bone. The upper and lower ends of the outer frame are provided with curved surfaces matching the facet joints of the occipital condyle and axis, and a support unit is provided within the outer frame. This utility model, combined with 3D printing technology, matches the shape of the corresponding segment and resection site, thereby replacing the resected segment, promoting the fusion of the atlantoaxial segment, and facilitating the restoration of the physiological function of the upper cervical spine.

The present invention discloses an instrument for bone grafting under small arthroscopy. The present invention provides an instrument for bone grafting under small arthroscopy, which can standardize the bone grafting steps, quantify the amount of bone grafting, pressurize the bone grafting quality in advance, and make the bone grafting process less prone to complications, short time consumption, and high efficiency. The present invention comprises an insertion accessory (1) and a bone grafting accessory (2). The insertion accessory (1) is used to insert into the bone defect of the joint space and open a channel for the bone grafting accessory (2) to be inserted. The bone grafting accessory (2) is used to pressurize the bone and send it into the bone defect through the channel opened by the insertion accessory (1); the bone grafting accessory (2) is provided with an adjustment unit (23) for adjusting the amount of bone carried by the bone grafting accessory (2). The present invention is suitable for bone grafting under small arthroscopy.

This present invention relates to an electric spine back pain-relieving device. The device is configured to be integrated or retrofitted to backrest of a chair for providing support to spine of a user. The device has a set of modules and has an integrated electric source for providing mechanical pressure on facet joints of vertebra of spine of a human. Each module carries a set of spindles comprising a pair of barrel-shaped or spherical spindle nodules that are positioned upon facet joints of the spine for alleviating pain. The electric source may be selectively activated using a push button and the device works on one of the two modes: single action mode and block action mode.

A facet joint fixation device formed from a flexible wedge shaped implant constructed from a single piece of material. The device is defined by an insert end spaced apart from outer end by first and second side members. Each side support is cut by a series of recesses in diminishing depth defining a living hinge therebetween. The series of recesses are constructed and arranged to adjust flexibility of said implant.

A system may be configured for facet fixation and may include a cap configured to span a vertebral facet joint. The cap may include a distal surface configured to seat against a bone proximate the vertebral facet joint. The system may also include a fastener configured to secure the cap to the vertebral facet joint. The cap may include an indicator configured to move from a first position to a second position in response to engagement of the distal surface with the bone.

Methods and surgical tools for treating back pain use a spinal facet debridement tool with cautery and denuding action and minimally invasive protocol that can denude and cauterize soft tissue associated with a synovial capsule of the spinal facet joint.

The invention provides a spine facet joint auxiliary back support which comprises a chest plate, a back plate, a mounting body, a first adjusting assembly, an independent adjusting assembly and a supporting assembly.Compared with the prior art, the spine facet joint auxiliary back support has the following beneficial effects that by arranging the supporting assembly, the spine of a patient can be effectively supported and corrected conveniently; an elastic arc plate is matched with an arch-shaped rod to powerfully support and correct the spine of the patient, so that the whole supporting assembly is more attached to the spine of the patient, the independent adjusting assembly is arranged to conveniently adjust the position of the supporting assembly independently, and the first adjusting assembly and the second adjusting assembly are designed to adjust the spine of the patient conveniently. The multiple supporting assemblies can be conveniently and unilaterally adjusted or integrally adjusted at the same time, so that the supporting assemblies are tightly attached to the spine of the patient, and the supporting and correcting effects are enhanced while the comfort of the patient is improved.

The invention provides methods and products to reduce one or more symptoms from injury to a synovial joint. The methods and products relate to injecting into or around cartilage of the synovial joint the peptide GsMTx4 or a composition targeting GsMTx4 to the cartilage. The synovial joint can be, for example, a knee joint, shoulder joint, hip joint, or a facet joint of the spine.

A bone joint inserter device for accessing and manipulating a facet joint is provided. The bone joint inserter device improves surgical control in bone anchor location, placement and insertion into target bone, while the inserter device also improves efficiency in engaging the target bone joint. The surgical instrument provides improved control of cutting device location and orientation, including directional control for precise bone anchor component insertion. Methods to use the bone joint inserter device in surgical procedures are also provided.

A self-drilling bone fusion screw apparatus is disclosed which includes at least first and second sliding boxes. A first screw member having a tapered end and a threaded body is disposed within the first sliding box, and a second screw member having a tapered end and a threaded body disposed within the second sliding box. An adjuster adjusts the height of the sliding boxes. The screw members are screwed into vertebral bodies in order to fuse the vertebral bodies together. A plurality of the self-drilling bone fusion screw apparatuses may be attached together and / or integrated via a plate or cage. Also disclosed is a cervical facet staple that includes a curved staple base and at least two prongs attached to the bottom surface of the curved staple base.

A method for performing lumbar interbody fusion surgery may include forming an access corridor through a facet joint of a patient, removing disc material from a disc space of the patient via one or more instruments advanced through the access corridor, and advancing an interbody device through the access corridor and into the disc space.