14 results about "Facet joint" patented technology

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.

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.

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 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.

The present invention includes a novel procedure and corresponding medical devices for a Purcutaneous Spinal Interbody Fusion (PSIF). In PSIF, the surgeon performs the entire operation percutaneously without the use of a microscope, endoscope, or magnifying loupes. An adjustable retractor system is disclosed that enables the surgeon to percutaneously perform the surgery through accessing the facet joint (and later disc space) that was created by said retractor system. This retractor system provides the surgeon a safe area to work and operate without fear of damaging nerves, blood vessels, or other tissue. An expanding trial may be inserted into and removed from the disc space through the interior of the retractor system to determine the proper size for the expandable cage. The retractor system also enables the expandable cage to be inserted into the disc space.

Methods and systems for spinal radio frequency neurotomy. Systems include needles capable of applying RF energy to target volumes within a patient. Such target volumes may contain target medial branch nerves along vertebrae or rami proximate the sacrum. Such procedures may be used to ablate or cauterize a portion of the targeted nerve, thus blocking the ability of the nerve to transmit signals to the central nervous system. Disclosed needles may be operable to asymmetrically, relative to a central longitudinal axis of the needle, apply RF energy. Such asymmetry facilitates procedures where a tip of the needle is placed proximate to anatomical structures for location verification. Then RF energy may be applied in a selectable direction relative to the needle tip to ablate volumes that include the targeted medial branch nerves or rami, thus denervating facet joints or the sacroiliac joint, respectively, to relieve pain in a patient.

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.

The application provides a method for dredging the governor vessel and adjusting the spine for rehabilitation physiotherapy, and belongs to the technical field of spine adjustment physiotherapy. The method comprises the following steps: step one: preoperative evaluation and diagnosis: a doctor first determines the specific segment and degree of spinal dislocation and subluxation of a patient through body posture analysis, spinal palpation, and image examination, simultaneously evaluates the spinal joint mobility and stability, and excludes contraindications such as fractures and tumors that are not suitable for spine adjustment, accurately locates the lesion site that needs to be adjusted, and lays a foundation for subsequent operations; the application adjusts the prone posture of the patient in a targeted manner, cooperates with different specific actions, pulls the reflection to a certain specific vertebral facet joint, and then uses a spine adjustment device to accurately tap the misaligned part of the spine, promotes the reduction, releases the pressure of the vertebral body, restores the function of the compressed nerve, stimulates the qi and blood of the governor vessel, and achieves the purpose of dredging the governor vessel, thereby improving the effect of the method for dredging the governor vessel and adjusting the spine for rehabilitation physiotherapy.

A facet joint replacement system includes a facet joint replacement device including an enclosing body and an articulating body. The enclosing body includes an interior surface defining an inner cavity of the enclosing body. The interior surface includes a first articulating surface and a projection extending inwardly relative to a surrounding area of the interior surface. The articulating body is positioned within the inner cavity of the enclosing body and is configured to move within the enclosing body. The articulating body includes a second articulating surface and a recess extending inwardly relative to a surrounding area of the articulating body and aligned with the projection of the interior surface of the enclosing body so as to allow movement of the projection along the recess of the enclosing body while constraining rotational motion of the articulating body within the enclosing body.