22 results about "Fusion surgery" patented technology

A sacroiliac (SI) joint implant assembly addresses SI joint dysfunction and degenerative sacroiliitis. The assembly includes a first implant body, a second implant body, and a piezoelectric layer positioned between them. The piezoelectric layer generates electrical charges when subjected to mechanical stress, stimulating bone growth and enhancing stability of the SI joint after surgery. The implant bodies may feature non-planar surfaces to distribute compressive and shear forces unevenly across the piezoelectric layer. The assembly can be secured using fasteners such as screws, pins, or brackets, and may include porous or fenestrated bodies made from materials like titanium or polymers. Some implant assemblies are designed for minimally invasive surgical procedures, with configurations that allow for precise placement using guide wires and imaging techniques. The assembly aims to stabilize the SI joint and promote bone fusion, leveraging the piezoelectric effect to improve the overall efficacy of the fusion procedure.

According to the endoscope, a first channel arranged in a tube body is used as an independent observation channel, when an operation is carried out, only one minimally invasive channel needs to be established, the tube body extends into an operation area in the channel, and the situation of the operation area can be directly observed through an external observation barrel under the reflection effect of a mirror surface; the second channel is arranged on the outer side of the tube body to serve as an independent instrument channel, so that surgical instruments can reach a surgical area and are prevented from interfering with observation sight, surgical operation can be performed while observation is performed, and surgical efficiency and safety are improved; the second channel can be closed through a cover plate to enhance a sterile barrier and reduce the risk of tissue damage, the cover plate can be removed as needed to provide a larger instrument operation space and carry out an endoscopic fusion operation, the operation safety and efficiency are both considered, the overall structure is designed through modularization and self-centering, the assembly process is simplified, and the assembly efficiency is improved. And the use convenience and clinical applicability of the equipment are improved.

This invention relates to a novel P-approach endoscopic lumbar fusion surgery method, belonging to the field of lumbar fusion surgery technology. This method addresses the high risk of nerve injury and insufficient operational precision in existing endoscopic fusion techniques by proposing an improved solution. It utilizes Kirschner wires for positioning at the inferior articular process to establish a precise entry point avoiding the nerve root pathway; a visually guided circular saw is used throughout the endoscopic procedure to construct a safe triangular working channel directly reaching the spinal canal; under full endoscopic monitoring, a unilateral approach is used for bilateral spinal canal decompression, thoroughly removing diseased tissue and scraping the endplates until punctate bleeding occurs; a bone graft cannula with a curved tip is used to precisely implant the fusion device into the anterior region of the intervertebral space, restoring intervertebral height through a self-locking structure; finally, a universal pedicle screw is percutaneously implanted for fixation. This method reduces the risk of nerve injury, improves surgical safety and efficiency, and is suitable for patients with lumbar spondylolisthesis complicated by spinal stenosis.

A system for performing a minimally invasive interventional fusion procedure on a sacroiliac joint of a patient. The system may include a disposable sterile packed implant and kit including access, bone cutting, accessory and extraction instruments.

The invention relates to the technical field of medical instruments, in particular to an interbody fusion cage which comprises an interbody fusion cage body, the interbody fusion cage body is of a polyhedral structure and is implanted into the lumbar intervertebral space through an anterior lateral approach, and a screw channel and a connecting screw opening are formed in the front end position and the rear end position in the length direction of the interbody fusion cage body respectively; the screw channel is used for allowing screws to penetrate through the upper surface and the lower surface of the interbody fusion cage body, connected with the vertebral cancellous bone in a matched mode and fixed to the inner side of the lateral portion of the vertebral cancellous bone. The connecting screw is used for being connected with an installation instrument in a matched mode when the interbody fusion cage is implanted. By means of the screw channel, the fixing capacity of the interbody fusion cage can be effectively improved, better stability can be effectively provided for an OLIF operation through a proper implantation position and screw placement internal fixing operation, the occurrence risk of postoperative internal fixing related complications is effectively reduced, and the safety of the interbody fusion cage is improved. The effectiveness and the safety of the fusion cage in the lumbar vertebra front and outer side approach interbody fusion operation are improved.

An implant system comprising at least one staple, a cage and a coupling mechanism is disclosed. The implant system is secured to the bone by moving the staple with the coupling mechanism whereby the staple frictionally and mechanically engages or embeds itself in the bone. In some embodiments, the coupling mechanism includes a keyway mechanism to constrain the movement of the staple. In some embodiments the staple comprises two staples. The implant system may be configured for use as an interbody or intrabody implant system. In some embodiments, the cage comprises multiple cage sections. Some embodiments of the implant system are configured to be positioned from one of a posterior approach trajectory, a posterior lateral approach trajectory, or a posterior oblique approach trajectory. Some embodiments of the implant system are configured for use in a posterior lumbar interbody fusion (PLIF) or transforaminal lumbar interbody fusion (TLIF) procedure.

A retractor system is provided that allow improved instrumentation and access during a surgical procedure including for instance a lateral approach minimally invasive spinal fusion procedure. Disclosed systems include a handheld retractor, a ring retractor having an armature and a plurality of pivotable blade assemblies, and optional muscle retractors and stepped dilators cooperatively coupled together to form an exemplary system.

The invention relates to the technical field of surgical auxiliary tools, in particular to an anterior cervical minimally invasive fusion surgery stabilizing system and an application method thereof. The system comprises a universal endoscope fixing arm used for limiting the position of the anterior cervical endoscope and guaranteeing the stability of the anterior cervical endoscope in the operation process; the universal tissue spreader is connected with the universal endoscope fixing arm and is used for spreading soft tissues; the universal vertebral body dilator is used for dilating bone tissues; the universal pneumatic mechanical arm is connected with the universal tissue spreader and used for keeping the position of the universal tissue spreader in a pneumatic control mode. Stable connection is formed through modular clamping, a specific mechanism and an external member are adopted, the hand-held shaking problem is solved, synchronous reverse opening of soft tissue and bone tissue is achieved, a closed force transmission path is formed to keep the position, and supporting by additional personnel is not needed.

A dynamic intervertebral spacer includes a ring which is split on an anterior portion. A posterior portion of the ring acts as a torsion spring. After implantation, the ring is able to act as a spring between superior and inferior vertebral bodies, thus allowing dynamic bone growth in fusion procedures.

The utility model discloses a fusion cage for lumbar posterior fusion, which relates to the technical field of livestock breeding equipment and is technically characterized by comprising a fusion cage main body, and the fusion cage main body is of an upper arc-shaped double-arch structure and a lower arc-shaped double-arch structure. The fusion cage body is provided with a front end, a rear end, an upper surface, a lower surface, a left side face and a right side face, the front end of the fusion cage body is of a wedge-shaped structure, side holes are formed in the left side face and the right side face of the fusion cage body respectively, and textured tooth-shaped structures are arranged on the upper surface and the lower surface of the fusion cage. The upper arc and the lower arc of the lumbar fusion cage body are attached to a lumbar end plate, the front end ellipse facilitates oblique implantation, and the lumbar fusion cage is low in left and high in right and can rotate and stably support. The surface tooth-shaped textures increase friction, and the right-side forward-to-left reverse structure enhances stability. Biocompatible PEEK is adopted, and a developing needle is arranged to assist in monitoring. The minimally invasive concept is adopted, single-side small incision oblique planting rotation is adopted, injuries are reduced, the intervertebral height and spine stability are maintained, bone fusion is promoted, the operation effect is good, trauma is small, recovery is fast, and the clinical application potential is large.

The invention relates to the technical field of medical instruments, in particular to a three-screw-channel internal fixation interbody fusion cage which comprises an interbody fusion cage body, the interbody fusion cage body is of a polyhedral structure and is implanted into the lumbar intervertebral space through an anterior-lateral approach, and screw channels and connecting screw openings are formed in the front end position and the rear end position in the length direction of the interbody fusion cage body respectively; the screw channel is used for allowing screws to penetrate through the upper surface and the lower surface of the interbody fusion cage body, connected with the vertebral cancellous bone in a matched mode and fixed to the inner side of the lateral portion of the vertebral cancellous bone. The connecting screw is used for being connected with an installation instrument in a matched mode when the interbody fusion cage is implanted. By means of the screw channel, the fixing capacity of the interbody fusion cage can be effectively improved, better stability can be effectively provided for an OLIF operation through a proper implantation position and screw placement internal fixing operation, the occurrence risk of postoperative internal fixing related complications is effectively reduced, and the safety of the interbody fusion cage is improved. The effectiveness and the safety of the fusion cage in the lumbar vertebra front and outer side approach interbody fusion operation are improved.

The application discloses a degradable spinal fusion cage with a bone inductive microporous structure and belongs to the technical field of orthopedic implant medical devices. The fusion cage is integrally made of a degradable polymer composite material, the inside of the main body is provided with a bionic gradient microporous structure which is interconnected, and the surface of the fusion cage is provided with an active coating layer with a slow-release function. The mechanical property of the product is adapted to the physiological bearing requirement of the spine, the product can be steadily degraded along with the bone tissue regeneration process after being implanted into the human body, can effectively guide the bone tissue and microvessels to grow in, and can improve the intervertebral fusion efficiency; meanwhile, the problems of stress shielding, postoperative infection and the need for secondary removal surgery existing in traditional metal implants are solved, the product has good biocompatibility, the structure is reasonable, the preparation process is simple, and the product is suitable for clinical intervertebral fusion surgery of the spine.

This invention belongs to the field of medical technology and discloses an anatomically optimized spinal disc fusion cage and its design method. Based on the patient's personalized three-dimensional anatomical information of the diseased intervertebral disc, a personalized overall intervertebral fusion cage is designed. The designed overall intervertebral fusion cage is segmented into different types of personalized AOFS intervertebral fusion cages; these different types of personalized AOFS intervertebral fusion cages include, but are not limited to: ALIF (anterior fusion cage), PLIF (posterior fusion cage), TLIF (lateral posterior fusion cage), and LLIF (lateral fusion cage). This invention proposes a novel anatomically optimized spinal disc fusion cage design tailored to individual patients, fully integrating the advantages of simple decompression and decompression plus fusion surgery techniques. Its purpose is to optimize the biomechanical environment of adjacent segments after fusion surgery, reduce or prevent the possibility of reoperation after the initial fusion surgery, and thus prolong the surgical lifespan.

The invention discloses a percutaneous minimally invasive cervical vertebra articular process self-stabilization fusion cage which comprises a guider, a fusion cage body, a kirschner wire catheter, a kirschner wire and a hollow screw. The front end of the guider is detachably connected with the bottom of the fusion cage, a groove is formed in the fusion cage, and a rotating handle used for connecting or separating the guider and the fusion cage is arranged at the rear end of the guider; the guide device is detachably provided with a screw channel guide device, the screw channel guide device is provided with a guide hole, the axis of the guide hole is collinear with the axis of the groove, the kirschner wire catheter is detachably arranged in the guide hole in a penetrating mode and points to the groove, and the kirschner wire penetrates through the kirschner wire catheter and is downwards inserted into the groove so that the hollow screw can penetrate through the kirschner wire to be implanted into the fusion cage. According to the scheme, accurate minimally invasive implantation and fixation of the fusion cage are achieved mainly through an in-vitro guide structure, and the problems that a traditional cervical vertebra zygopophysis fusion operation is large in trauma, high in view field requirement and large in operation difficulty are effectively solved.

Disclosed herein are novel pedicle fastener placement systems and methods for more controlled and precise fusion surgery, reducing the risks associated with spinal fixation procedures. The system includes a frame with a connected handle on one portion and connected to an insertion assembly on a second opposite end. The method includes the steps of conducting a pre-operative computed tomography scan of a patient's spine to determine an insertion point and an insertion route. The method further includes using the pedicle fastener placement system to insert a pedicle fastener at the predetermined insertion point on the pedicle, through the predetermined insertion route.

An implant system comprising at least one staple, a cage and a coupling mechanism is disclosed. The implant system is secured to the bone by moving the staple with the coupling mechanism whereby the staple frictionally and mechanically engages or embeds itself in the bone. In some embodiments, the coupling mechanism includes a keyway mechanism to constrain the movement of the staple. In some embodiments the staple comprises two staples. The implant system may be configured for use as an interbody or intrabody implant system. In some embodiments, the cage comprises multiple cage sections. Some embodiments of the implant system are configured to be positioned from one of a posterior approach trajectory, a posterior lateral approach trajectory, or a posterior oblique approach trajectory. Some embodiments of the implant system are configured for use in a posterior lumbar interbody fusion (PLIF) or transforaminal lumbar interbody fusion (TLIF) procedure.

The present disclosure includes bone screws, spinal implant, drivers, and their assemblies thereof for surgical procedures of the spine including but not limited to anterior lumbar interbody fusion (ALIF) procedures.

The application relates to a dynamic continuous compression intramedullary nail and a use method thereof, and belongs to the medical instrument field. The dynamic continuous compression intramedullary nail comprises a main nail, a fixing through hole for placing a first fixing bolt is arranged on the main nail, a static through hole and a plurality of dynamic through holes matched with the fixing through hole are arranged on the main nail, a compression groove is arranged on the main nail, a compression assembly is arranged in the compression groove, and the static through hole and the dynamic through holes are used for placing second fixing bolts. According to the fracture condition of a patient, the second fixing bolts are placed in the static through hole or the dynamic through holes, the compression assembly continuously compresses the second fixing bolts in the dynamic through holes, the patient is not prone to bone resorption, bone subsidence and other phenomena at two fracture sections of bone healing, and the healing speed is accelerated. The application is especially suitable for ankle joint tibial tarsal calcaneal three-joint fusion fixation, responds to and adapts to the activity change of an ankle joint, achieves a dynamic fixation effect, and is also suitable for femoral head allogeneic material transplantation and other auxiliary fusion operations.

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.

The utility model relates to the technical field of spine fusion surgery, and discloses an orthopaedic spine fixing device which comprises a fusion cage body, the fusion cage body comprises a fusion plate and a fastener, the fusion plate comprises two spine fixing rings, two threaded holes are formed in the front of each spine fixing ring, and the fastener is arranged in the middle of each spine fixing ring. The fastening device comprises an intervertebral disc fixing ring, the intervertebral disc fixing ring is used for removing and filling the intervertebral disc and then stabilizing the connecting position of the two sections of the spine, the opening directions of the intervertebral disc fixing ring and the spine fixing ring are opposite, and the intervertebral disc fixing ring is tightly arranged at the connecting position of the two sections of the spine in a sleeving mode through the fusion plate and the fastening device. The device can reinforce the mechanical structure after the original intervertebral disc tissue is removed, meanwhile provides lateral supporting force for the fused spine, and further reinforces and connects the whole device through the threaded plate and the fixed threaded rod, so that the spine structure of a postoperative patient is more stable.

This invention relates to the field of medical devices and discloses an interbody fusion cage insertion device, including a slide seat that can be mounted on an operating rod. A guide groove is formed on the slide seat, with its front end penetrating the slide seat. A cover plate is movably installed within the guide groove. The cover plate can extend and retract axially relative to the operating rod along the guide groove. The inner side of the cover plate has a mating surface adapted to the outer wall of the interbody fusion cage. When the interbody fusion cage is implanted into the intervertebral space, the front end of the cover plate abuts against the posterior edge of the vertebral body. As the interbody fusion cage moves forward into the intervertebral space, the cover plate moves posteriorly relative to the interbody fusion cage. Through the sliding between the cover plate and the interbody fusion cage, it is ensured that the filling groove of the interbody fusion cage is covered and sealed when implanted. This prevents bone fragments from being dislodged during the insertion of the interbody fusion cage, does not affect the implantation operation, and does not reduce the bone graft space, significantly improving the success rate of interbody fusion surgery.