9 results about "Spinal fusion surgery" patented technology

An expandable interbody spacer including a first endplate and a second endplate, each with an outwardly facing surface, an inner facing surface, and two opposing isosceles-trapezoidal-shaped sidewalls. A motion assembly is located between the opposing sidewalls of both endplates, including a first motion guider with a smooth central cylindrical aperture, a second motion guider with a threaded central cylindrical aperture, and a screw with a screwhead and a partially threaded shank. The shank of the screw is positioned through the aperture in the first motion guider and into the aperture in the second motion guider. Clockwise rotation of the screwhead increases the height between the endplates by drawing the motion guiders together, while counterclockwise rotation decreases the height by moving them apart. The expandable interbody spacer permits controlled, in situ adjustment of height of the expandable interbody spacer to fit various intervertebral space requirements during spinal fusion procedures.

A spine internal fixing device with a fusion function comprises a pedicle screw, the pedicle screw comprises a screw body, a screw tail is arranged at the upper end of the screw body, a nut is connected to the screw tail through internal threads, the screw body and the screw tail are of a honeycomb structure simulating cancellous bone, and solid external threads are arranged on the outer surface of the screw body. According to the spinal internal fixation device with the fusion function, a full-assembly simulation cancellous bone honeycomb structure of a pedicle screw rod nut and a matched connecting piece is prepared by adopting a 3D printing technology, and meanwhile, solid structures of key stress parts such as an external thread tip threaded connection surface are reserved so as to guarantee early mechanical fixation strength; after the components are assembled, a continuous bone ingrowth channel is formed, so that the transformation of internal fixation of the spine from temporary mechanical support to permanent osseous fusion is realized, and various intervertebral, intervertebral, posterior lateral and transverse process bone grafting fusion steps in a traditional spine fusion operation can be omitted.

Retractor (1) for surgical applications in spinal fusion, comprising a handle section (2) for actuation with a central section (3) arranged thereon having a longitudinal axis and a tool section (4) arranged directly on the central section (3) for supporting tissue of a spine, wherein the tool section (4) comprises a first leg section (41) that can be brought into contact with nerve tissue of the spine and which extends at a first angle (α1) in a first direction to the longitudinal axis of the central section (3) and a second leg section (42) that can be brought into contact with dural tissue of the spine and which extends at a second angle (α2) in a second direction opposite to the longitudinal axis of the central section (3), such that an operating area on the spine can be opened between the first and the second leg sections (41, 42).wherein the first leg section (41) has a first end section (411) angled at a third angle (Φ1) at the open end and the second leg section (42) has a second end section (421) angled at a fourth angle (Φ2) at the open end and a flat surface of the second leg section (42) is a surface that widens with respect to the longitudinal axis of the middle section (3).

This invention belongs to the field of medical device and medical image processing technology, and discloses a preoperative planning and guidance system for spinal fusion surgery based on three-dimensional image modeling. The system includes a medical image access terminal, a planning server, an intraoperative positioning workstation, a patient reference frame, instrument marking components, and a record management module. The planning server performs voxel spacing unification and coordinate normalization on preoperative images, reconstructs the target fusion segment model, and obtains a feasible insertion domain based on the difference between the candidate domain and the forbidden envelope domain. It jointly solves for screw and fusion device parameters and connecting component paths. During surgery, it calculates the entry point deviation, angle deviation, and depth deviation at a fixed sampling frequency, and triggers local re-registration and local replanning of affected segments using dual thresholds, achieving continuous guidance updates and process traceability.

The application relates to the technical field of medical imaging, and discloses a spine intervertebral fusion detection device and method based on deep learning, which aims to solve the problem of poor accuracy of existing intervertebral fusion detection methods, and mainly comprises the following steps: acquiring a spine image of a patient; performing image recognition and segmentation on the spine image based on a deep convolutional neural network model to obtain a first bone bridge image and adjacent upper and lower vertebral body images in the spine image; generating a spine healing image of the patient according to the first bone bridge image and the adjacent upper and lower vertebral body images and based on an adversarial generative network model, and determining a second bone bridge image in the spine healing image; determining the similarity of the first bone bridge image and the second bone bridge image, and determining the intervertebral fusion state of the spine of the patient according to the similarity. The application improves the accuracy of intervertebral fusion detection, can also predict healing trends and healing time, and is particularly suitable for patients after a spine fusion operation.

One or more techniques and / or systems are disclosed for an expandable spinal cage device used in a spinal fusion procedure. The device can comprise three major pieces that are combined to expand the device both laterally and vertically in the intervertebral gap. A first piece is a cage support body, and a second piece is a width expander body inserted into the first piece that laterally expands the first piece. A third piece is a vertical expander body inserted into the first or second piece that results in vertical expansion of first piece. In this way, the first piece can be expanded laterally up to two times, and vertically up to two times.

The present invention relates to uses of a combination therapy of bone morphogenetic protein-2 and denosumab in spinal fusion surgery. When bone morphogenetic protein-2 and denosumab are used in combination during spinal fusion surgery as in the present invention, side effects frequently occurring due to spinal fusion surgery, such as osteolysis, inflammation, wound dehiscence, and bleeding, can be effectively prevented and treated.

Spinal implants for use in fusion procedures, such as sacroiliac fusion procedures, are provided. The implant provides mechanical stability when inserted into an anatomical structure(s) until fusion occurs. In certain embodiments, the implant may comprise a multi-surfaced, cross-sectional configuration, such as a 6-starred shaped (hexalobular) cross-sectional configuration, and radially dispersed longitudinal splines. When used for sacroiliac fusion procedures, the implant is configured to prevent sacroiliac joint spreading.

The invention relates to a retractor (1) for surgical applications in spinal fusion procedures on a spine, the retractor comprising: a handle portion (2) for actuation; a central portion (3) that is arranged on the handle portion and has a longitudinal axis; and a tool portion (4) mounted directly on the central portion (3) for supporting spinal tissue, wherein the tool portion (4) comprises a first arm portion (41) which can be brought into contact with nerve tissue of the spine and which extends at a first angle (α1) in a first direction relative to the longitudinal axis of the central portion (3), and a second arm portion (42) which can be brought into contact with dural tissue of the spine and which extends at a second angle (α2) in a second direction opposite to the first direction relative to the longitudinal axis of the central portion (3).