48 results about "Fusion surgery" patented technology

The invention relates to the technical field of medical instruments, and discloses an additive manufacturing bionic bone trabecula full-porous interbody fusion cage which is applied to spinal fusion surgery and is of a bionic bone trabecula full-porous structure made of medical metal through a laser melting or electron beam melting additive manufacturing technology. The interbody fusion cage comprises a front end face, a rear end face, a first side surface, a second side surface, an upper fusion face and a lower fusion face, the upper fusion face and the lower fusion face make direct contact with a vertebral body end plate of a spine, anti-skid teeth are arranged on the surfaces of the upper fusion face and the lower fusion face, and a bone grafting window penetrating through the upper fusion face and the lower fusion face is formed in the center of the interbody fusion cage. The interbody fusion cage has the structure and mechanical property similar to those of cancellous bone and trabecular bone of a human body, can improve the bone combination area and bone ingrowth space, has excellent initial and long-term stability, and can effectively reduce stress shielding so as to improve the bone fusion capability.

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.

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.

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.

The present invention discloses a 3D printed bionic anti-dislocation movable artificial cervical vertebra and intervertebral connection complex, including: an upper end plate, a lower end plate, a bionic vertebral body and an anti-dislocation structure, the bionic vertebral body includes a vertebral body body hollowed out in the middle, an upper acetabulum is arranged on the upper part of the vertebral body body, and a lower acetabulum is arranged on the lower part; the upper acetabulum is connected to the upper end plate through an upper end plate joint structure, and the lower part is connected to the lower end plate through a lower joint structure; the present invention has sufficient support structure, and can provide stable support after anterior cervical vertebral resection; the present invention replaces the movement function of the normal cervical vertebra through the movement of its own ball joint, can retain the original range of motion of the cervical vertebra, and prevent the occurrence of adjacent segment diseases of the cervical vertebra caused by fusion surgery, and the present invention has a matching anti-dislocation structure, which is placed in the occurrence of dislocation during joint activity. The implantation operation of the present invention is less difficult, less traumatic, and easy to promote.

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.

A system for performing interbody fusion surgery including an expandable intervertebral spacer and specialized instruments for choosing the correct size of implant, implanting the device within the intervertebral space, and for delivery of bone graft or bone substitute to the interior of the implant.

The invention relates to an intervertebral disc annulus fiber opening tool for intervertebral fusion surgery, which effectively solves the problem that when the annulus fiber of the intervertebral disc is cut, nerve roots and spinal cord dura mater are easily damaged, thereby causing serious consequences. The lower end of the handle is connected to a side wall of a sleeve to form a hook-shaped structure, a through hole is provided in the center of the sleeve, and a side wall where the sleeve and the handle are connected is an arc-shaped side wall that is convex toward the center of the sleeve, the upper and lower sides of the arc-shaped side wall are both horizontal straight lines, and the left and right sides are curved in an arc shape, a knife body is installed in the through hole in the center of the sleeve from top to bottom, the knife body is composed of a handheld part and a knife head, the lower end of the handheld part is connected to the knife head, the knife head is an isosceles triangle arc with a tip downward, and both sides of the isosceles triangle arc are blades. The invention is easy to use, has good effect, saves time and labor, is easy to operate, and greatly improves the safety of surgical operation.

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 apparatus for sacroiliac fusion surgery is provided. The apparatus includes a tube that allows x-ray visualization of objects passing through the tube, the tube having a proximal end with an opening and a distal end with an opening. The tube further has one or more mounts on its distal end for attaching removable anchoring tips thereto. The apparatus further has one or more removable anchoring tips attached to the distal end of the tube with the one or more mounts. The tube is made of a material that is radiolucent and permits x-ray visualization of objects that are passed through the tube.

Machine learning and intelligent planning techniques are disclosed for fabricating spinal fusion plates and spinal cages that can be utilized as a system together to provide a precision guided anterior cervical discectomy and fusion (ACDF) surgery to a subject in need thereof. The spinal fusion plate provides adjustments of one or more vertebrae even after attaching the plate to the spine of the subject. The spinal fusion plate provides a surgical window or "postbox" for accessing the intervertebral space(s) of the subject, provides the postbox window for precision insertion of a spinal cage, provides a locking inset to prevent over-insertion of the spinal cage, and provides precision compression of the spinal cage after the insertion. Methods of treating subjects in need of a discectomy surgery are described herein utilizing the precision implants.

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.

According to the working cannula for the anterior cervical fusion surgery, a novel cannula fixing mode and structural innovation for supporting intervertebral space are provided, so that the two hands of a doctor are liberated, the flexibility of the doctor for carrying out the surgery is improved, and the aims of reducing the surgery load, improving the instrument universality and reducing the surgery difficulty are achieved. The working sleeve comprises an inner tube and an outer tube, the inner tube is provided with a tube body and an inner tube handle which is located at the top end of the tube body and used for being fixedly connected with the outer tube, a lens body implanting hole is formed in the center of the inner tube handle, the tube body is provided with a through hollow cavity, and the lens body implanting hole is communicated with the hollow cavity of the tube body. The outer tube is provided with an outer tube body and an outer tube handle which is positioned at the top end of the outer tube body and is used for connecting and fixing the inner tube, an inner tube implanting hole is formed in the center of the outer tube handle, the outer tube body is provided with a through hollow cavity, and the inner tube implanting hole is communicated with the hollow cavity of the outer tube body.

The invention discloses a control system of an anterior cervical intervertebral disc resection and fusion operation trainer, the anterior cervical intervertebral disc resection and fusion operation trainer comprises a simulator base and a simulator shell which are detachably connected, one end of the simulator shell is provided with simulated neck skin, and the other end of the simulator shell is provided with simulated neck skin; the simulator base is provided with simulated muscle soft tissue, simulated tracheoesophagus, scapula tongue bone muscle and simulated sternocleidomastoid muscle; at least one section of simulated cervical vertebra is arranged below the simulated muscle soft tissue, and a simulated intervertebral artery and a simulated spinal cord are arranged in the at least one section of simulated cervical vertebra; the control system comprises a main control device, namely a test mode conversion button and a buzzer alarm which are arranged on the simulator base, and a tension sensor I and a tension sensor II which are arranged in the simulator base. According to the scheme, a scientific and instant training evaluation mechanism is comprehensively provided, and the technical level of operators can be improved; based on the control system, the invention further provides a control method and a storage medium of the training device for the anterior cervical intervertebral disc resection and fusion surgery.

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 present application discloses a double-locking pedicle screw for fusion and non-fusion surgery, which comprises a ball-head nail and a nail seat connected to the ball-head nail; the nail seat is provided with a fixing channel and a fixing screw hole connected to the side wall of the fixing channel; the double-locking pedicle screw for fusion and non-fusion surgery also comprises two fixing screws that can be threadedly connected to the fixing screw holes, and the two fixing screws are respectively provided with a first extrusion part and a second extrusion part; the fixing screw hole can be connected to one of the fixing screws so that the first extrusion part enters the fixing channel and acts together with the inner wall of the fixing channel to clamp the elastic band passing through the fixing channel, or so that the second extrusion part can enter the fixing channel and acts together with the inner wall of the fixing channel to clamp the rigid rod passing through the fixing channel. The present application can fix both the elastic band and the rigid rod by replacing the fixing screws, and the damage to the patient is relatively small when replacing the connection object.

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.

The present invention discloses a lumbar interforaminal endoscopic resection and fusion surgery trainer, comprising a simulator base and a simulator cover, wherein the simulator base is fixedly connected to the simulator cover by a plurality of buckles, a silicone part simulating human soft tissue is bonded to the simulator cover, a bone module is arranged between the silicone part simulating human soft tissue and the simulator base, the bone module is fixedly connected to the simulator base by a clamping plate, a tension sensor body is arranged on one side of the bone module, and a tension sensor support is fixedly connected to the inner wall of the simulator base. The trainer for realistically restoring lumbar interforaminal endoscopic resection and fusion surgery improves the authenticity of the trainer by arranging a silicone part simulating human soft tissue, a bone module, a simulated fifth lumbar nerve exit root, and a simulated first sacral nerve running root, so that the trainer has a realistic anatomical structure and feel, which helps to improve the technical level of the operator.

The invention discloses a lumbar interbody fusion stent, which is used for lumbar interbody bone grafting fusion, and comprises a fusion stent main body and a cushion block with an anatomical adaptive footprint surface, the fusion stent main body is X-shaped on the whole; the cushion block comprises an upper cushion block and a lower cushion block; the upper cushion block and the lower cushion block are detachably mounted on the fusion stent main body. The fusion stent main body is made of a nickel-titanium alloy material; and the cushion block is made of a PEEK material. The invention further discloses a preparation method of the lumbar interbody fusion stent and a bone grafting fusion method applying the lumbar interbody fusion stent. The invention further discloses application of the lumbar interbody fusion stent to bone grafting fusion.

Disclosed are methods for treating adolescent idiopathic scoliosis (AIS). The method is directed to the biomechanical cause of AIS in the ventral portion of the interspinous ligament. Treatment includes chemically lysing and / or cutting the abnormal tethering structure, thereby allowing the AIS spine to decrease its deformity with ongoing day-to-day activities, without requiring bracing and without requiring instrumented and / or fusion surgery.

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.