46 results about "Lateral approach" patented technology

A patella fracture fixation system includes a peripheral rim bone plate that is configured to be implanted along a parapatellar lateral approach. The bone plate can configured to minimize disruption of blood supply to the patella. The bone plate can be augmented with a Krackow suture pattern to assist in stabilization of a comminuted inferior pole.

The present disclosure relates to an artificial lumbar disc and provides a lateral approach artificial disc that is inserted laterally rather than anteriorly of the spine, thereby preventing damage to blood vessels or other organs that may occur when an anterior access artificial disc is inserted from the front, shortening the surgical time, preventing dislodgment of the artificial disc, and improving the surgical prognosis. The artificial disc is inserted between two adjacent vertebrae and includes an upper plate contacting an upper vertebra, a lower plate contacting a lower vertebra, and an inserter inserted between the upper plate and the lower plate to allow the upper plate to rotate by a set angle with respect to the lower plate, and an upper wing portion and a lower wing portion are formed on the upper plate and the lower plate.

The present invention provides for improved interbody cage devices using surgical methods for delivering such cage into the disc space. The present invention has at least one advantage of providing practical and advantageous methods for accessing the spinal disc space to insert and deploy interbody cage devices in various manners that overcome the disadvantages of posterior, trans-sacro-iliac, anterior, oblique and lateral approaches thereto and minimize surgical trauma to the patient. Thus, the present invention provides for the unmet need for improved interbody cage devices which may be inserted to a disc space for patients exhibiting a wide range of anatomies.

This utility model relates to medicine and can be used in neurosurgery. It is used as a means of accessing the intervertebral disc between the 5th lumbar and 1st sacral vertebrae at a 90-degree angle for laser vaporization. The utility model achieves the following technical results: 1. A minimally invasive, minimally invasive approach to the intervertebral disc at the L5-S1 level. 2. Allows to improve the effectiveness of treatment and achieve maximum pain relief in polysegmental lesions of intervertebral discs 3. Prior to this utility model, attempts were made to perform laser vaporization of the disc at the L5-S1 vertebral body level from anatomically inconvenient locations, which was accompanied by a long time interval, prolonged pain for the patient, the end of the electrode was not in the center of the nucleus pulposus, sometimes even on the cortical layer of the vertebral bodies, as a result of which the maximum effect of vaporization was not obtained, or aseptic inflammation of the bone tissue of the vertebrae was obtained. This utility model eliminates the above-mentioned issues, reducing vaporization time. The essence of this utility model is that, using this trocar and drilling stylet, we provide direct access to the L5-S1 intervertebral disc. Laser vaporization of this disc has not previously been performed due to its anatomical limitations.

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.

Systems and methods of use are provided that allow improved instrumentation and access during a surgical procedure including for instance a lateral approach minimally invasive spinal fusion procedure.

A tibial plateau posterior lateral fixing device comprises a fixing steel plate and screws. The fixing steel plate comprises a C-shaped steel plate body, a binding face which is formed on the inner side of the C-shaped steel plate body and used for being attached to sclerotin under a tibial plateau articular surface, one or more fixing screw holes formed in the front end of the C-shaped steel plate body, and positioning holes which are formed in the rear end of the C-shaped steel plate body and are opposite to the one or more fixing screw holes. The screws are matched with the one or more fixing screw holes, and the tail ends of the screws can be clamped in the positioning holes; according to the fixing device limited by the application, the injury risk of nerve, blood vessel and tendon caused by a complicated anatomical structure of a conventional rear side approach is avoided; the C-shaped steel plate body can penetrate through a gap between an outer side collateral ligament and a tibial condyle above a fibula head and wrap the rear outer side of a tibial plateau, so that extrusion supporting of a blind area bone block on the rear outer side is achieved; and the two screws are clamped into the rear positioning holes to form a frame structure, so that the fixing device has good mechanical stability.

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.

To provide a skull model facilitating the understanding of an operation including a brain stem, a skull base, a posterior fossa, and a craniocervical spinal cord transition part since there is no suitable model corresponding to the examination of the operation including the brain stem, the skull base, the posterior fossa, and the craniocervical spinal cord transition part such as an approach to an important part, for example, an ExtremeLateralApproach and a TranscondylarApproach in the operation including the skull base part.SOLUTION: A head model for training or teaching craniotomy of disease in the skull, comprising at least a portion of the temporal bone, the posterior fossa, and the atlanto-occipital joint.SELECTED DRAWING: Figure 1

The utility model discloses an ulna coracoid process bone fracture plate through anterior approach, bone setting of ulna coracoid process is achieved through anterior approach, the bone fracture plate is of a T-shaped structure, the total length of the bone fracture plate is smaller than 2.5 cm, the bone fracture plate comprises an adaptive plate and a fixing plate which are in angle connection, the adaptive plate is located above the fixing plate, the adaptive plate is used for being matched with a far-end lateral column of the ulna coracoid process, and the fixing plate is used for being matched with the far-end lateral column of the ulna coracoid process. The adaptive plate comprises a positioning hole and suture holes formed in the two sides of the positioning hole; the fixing plate is narrower than the adaptive plate, an adjusting hole and a fixing hole are formed in the fixing plate, the adjusting hole is located between the positioning hole and the fixing hole and used for achieving adaptive adjustment of the bone fracture plate and the far-end outer side column, and the total length is the total distance between the top end of the adaptive plate and the bottom end of the fixing plate. According to the bone fracture plate, the matching stability of the bone fracture plate and the front portion of the elbow joint after bone fracture is improved, stimulation to local soft tissue is reduced, the contact area between the bone fracture plate and ulna coracoid processes is increased, the fixing strength between the bone fracture plate and the ulna coracoid processes is improved, the postoperative healing effect is improved, and the stress fracture risk is reduced.

The invention provides a lumbar vertebra oblique lateral approach-based angled locking nail plate fixation strengthening system, and relates to the technical field of medical instruments, the lumbar vertebra oblique lateral approach-based angled locking nail plate fixation strengthening system comprises a locking fusion cage, a lateral approach locking plate, an upper locking screw, a lower locking screw and a bone cement injection device, the locking fusion cage is used for being placed in a lumbar vertebra gap; a connecting part for connecting and locking the fusion cage is arranged on the lateral locking plate, and a first mounting hole inclined upwards and a second mounting hole inclined downwards are formed in the lateral locking plate; the upper locking bolt and the lower locking bolt respectively penetrate through the first mounting hole and the second mounting hole and are connected into the lumbar vertebra body; the upper locking screw and the lower locking screw are respectively provided with a circulation channel; on one hand, a single-side approach and a single body position are adopted, the problem of postoperative lumbar major muscle irritation can be effectively avoided, on the other hand, the locking fusion cage is firm in positioning and not prone to loosening and sinking, stable internal fixation can be achieved, the fusion rate can be increased, and meanwhile bone cement injection, lumbar vertebra body strengthening and vertebral body end plate reconstruction can be directly conducted.

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.

A method and apparatus for designing a lateral approach surgical guide are disclosed. Embodiments provide a method and apparatus for designing a lateral approach surgical guide plate in which, if a maxillary sinus lifting surgery needs to be performed using a lateral approach method, the maxillary sinus is segmented from dental imaging data, a bone window is formed based on the segmented maxillary sinus, and the maxillary sinus lifting surgery is performed based on the bone window. The shape of the lateral approach surgical guide is then formed as a function of the thickness of the remaining bone in the bone window formation area and the stop of the cutting tool. Therefore, the guide plate for the lateral approach method can be quickly and accurately generated.

The present invention provides a reduction and positioning nail guide for posterior cruciate ligament tibial insertion avulsion fractures in the field of medical devices and a usage method. First, establish anterolateral and anteromedial approaches. The arthroscope enters the posteromedial compartment through the space between the posterior cruciate ligament and the medial femoral condyle via the anterolateral approach. After exposing the medial gastrocnemius tendon through the high-level posteromedial approach, insert the lens into the high-level posteromedial approach as the observation approach to expose the posterior cruciate ligament tibial insertion avulsion fracture fragment. Then, perform reduction and temporary fixation of the fracture fragment through the extremely high-level posteromedial approach using this device. Drill a Kirschner wire into the fracture fragment with the first sleeve and the second sleeve in this device, and screw in a hollow nail under the guidance of the Kirschner wire for fixation. It is convenient to reduce and fix the PCL tibial insertion avulsion fracture fragment, facilitate the fixation of the Kirschner wire and the hollow screw, can effectively avoid the risk of popliteal neurovascular injury, and the operation is simple and easy to establish, having extensive popularization and application value in the field of medical device technology.

1. The name of the design product: endoscope channel (half ring type lateral approach spine). 2. The use of the design product: the design product is used to establish an operating channel for spine surgery. 3. The design points of the design product: in the perspective view. 4. The picture or photo that best indicates the design points: perspective view.

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 present invention relates to a fixation device for avulsion fracture of posterior cruciate ligament tibial attachment point and a method of use. When in use, a guide rod is passed through the tibia and the fracture fragment from the front side of the tibia at the same time, and then a clamping ring is set on the guide rod between the clamping part and the fracture fragment from the rear side of the knee joint, and then the tightening part and the clamping ring are used to clamp the tibia and the fracture fragment to achieve the fixation of the tibia and the fracture fragment. Compared with the prior art, the present invention eliminates structures such as sutures and steel plates with loops, and cleverly achieves more stable rigid fixation through the tightening part and the clamping ring. Most importantly, the entire arthroscopic surgery does not require the complicated establishment of double tibial channels, and the surgical channel does not pass through the popliteal fossa blood vessels and nerve tissues, and has the characteristics of minimally invasive surgery under the whole microscope. In addition, the present invention eliminates the traditional repeated threading and winding, bundling and tying operations in the surgical process, making it more convenient and simpler to operate under arthroscopy.

An implant system comprising one or more staple and a cage is disclosed. The implant system is secured to a bone by moving the staple whereby tines of the staple frictionally and mechanically engage or embed themselves in the bone sidewalls. In some embodiments, the staple comprises a first staple and a second staple. In some embodiments, the staples are positioned transverse to an approach trajectory of positioning of the implant system. The implant system may be configured for use as an interbody or intrabody implant system. The implant system may further comprise tools for positioning the implant system. Some embodiments of the implant system are configured to be positioned from an anterior trajectory, an anterior lateral approach trajectory, or an anterior oblique approach trajectory relative to the bone. Some embodiments of the system are configured to be used in an anterior lumbar interbody fusion (ALIF) procedure.

The utility model belongs to the technical field of medical instruments for fracture, and provides a pelvic anterior ring anatomical type bone setting steel plate passing through a perineum side approach, which is integrally formed by a pubis superior branch fixing section, a pubis tuberosity lower fixing section and a pubis superior and subordinate branch transition position fixing section. The bending shape of the plate surface of the suprapubis ramus fixing section is matched with the anatomical structures of the suprapubis ramus and the front lower wall of the acetabulum; the bending shape of the plate surface of the fixing section below the pubic tuberosity is matched with the anatomical structure of the surface below the pubic tuberosity; and the bending shape of the plate surface of the pubis superior and superior ramus transition position fixing section is matched with the anatomical structure at the intersection of the pubis superior ramus and the pubis inferior ramus. The utility model discloses can be used for pelvic anterior ring including suprapubis ramus, pubis body, suprapubis ramus and suprapubis ramus transition, pubis joint, acetabular internal upside and other injury, can adopt the mode of perineum bypass approach treatment, the surgical incision is hidden, does not need to peel the rectus abdominis dead point, can avoid femoral vessel nerve and other important structures.

The present embodiment relates generally to methods of performing surgical technique maxillary sinus floor augmentation with a lateral approach using a pre-portioned and ready pre-packaged bone graft composition in gelatin bags and method of producing gelatin bags. In addition the present inventions can be widely used in other medical fields such as dentistry, orthopedic surgery, spine surgery, plastic and reconstruction surgery, sport medicine, trauma surgery, phinoplasty surgery and veterinary.

The invention relates to an external rotation muscle group tendon reconstruction auxiliary device which is mounted on the rear surface of a greater trochanter of a femur and used before an iliotibial bundle is sutured after a hip replacement operation is performed on a posterior lateral approach. The device comprises a drilling cover die and a drill bit matched with the drilling cover die, a plurality of guide holes are preset in the cover die, a replaceable cambered surface insert block and a non-Newtonian fluid buffer bag body structure are arranged, and the fitting performance and the impact resistance stability are improved. The periphery of the guide hole is provided with a liquid injection groove used for dyeing identification, the surface of the cover die is provided with a tendon trend scribed line and a suture guide baffle, and synchronous optimization of drilling positioning, suture tension control and operation efficiency is achieved. The device is reasonable in structure, accurate in positioning, simple and convenient to operate and suitable for the tendon reconstruction requirements of extorsion muscle groups in various hip replacement operations.

Provided is a height-adjustable interbody fusion cage for an oblique lateral approach, comprising a body having a frame structure. A first upper blade is movably disposed on one end surface of the body, and a second lower blade is movably disposed on the end surface of the body opposite to the first upper blade. Opposite side surfaces of the body are provided with positioning holes. The two positioning holes are located on the same straight line in the horizontal direction, and the center lines of the two positioning holes are also on the same straight line. The end surface of the body adjacent to the positioning holes is a threaded end surface, and the threaded end surface is provided with a threaded hole. The surfaces of the first upper blade and the second lower blade are both arranged obliquely to the horizontal line, and the surfaces of the first upper blade and the second lower blade are both disposed at an acute angle to the horizontal line. The fusion cage has a height adjustment function, and can be accurately adjusted after implantation, thereby providing greater surgical operation flexibility and ensuring an optimal implantation position and fusion effect.

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 invention provides a lateral approach artificial intervertebral disc that inserts the artificial intervertebral disc from the side of the spine rather than the front of the spine, prevents damage to blood vessels and other organs that occurs in the anterior approach artificial intervertebral disc inserted from the front, shortens the operation time, prevents the artificial intervertebral disc from falling off, and can improve the surgical prognosis. In an artificial intervertebral disc inserted between two adjacent vertebrae, it includes an upper plate that contacts the upper vertebra, a lower plate that contacts the lower vertebra, and an inserter that is inserted between the upper plate and the lower plate and rotates the upper plate at a set angle with respect to the lower plate. The upper plate and the lower plate are characterized in that upper blade portions and lower blade portions extending in the insertion direction and the installer direction are formed in a state where the inserter is inserted.

The present invention involves a system and methods for assembling and implanting a vertebral body implant. The vertebral body implant includes, but is not necessarily limited to, an expandable core body and endplates that can be attached at both ends. End plates of various shapes, sizes and angles are attachable to the expandable core in a plurality of positions so that a suitable vertebral body implant can be implanted between vertebrae from an anterior, anterior-lateral, lateral, posterior or posterior-lateral approach.

The invention provides a lumbar oblique lateral approach-based angled locking nail plate fixation strengthening device, which comprises a locking plate, hollow screws, a fusion cage and a bone cement injection assembly, the locking plate is attached to a target position of a vertebral body, the two hollow screws are fixedly connected with the locking plate, the two hollow screws are obliquely arranged, and the fusion cage is fixedly connected with the locking plate. The vertical distance between the upper vertebral body and the lower vertebral body is gradually increased along the side close to the locking plate and attached to the vertebral body; the fusion cage is arranged in an intervertebral space between the upper vertebral body and the lower vertebral body and is fixedly connected with the locking plate; a pushing and injecting channel is formed in the bone cement pushing and injecting assembly, a drainage channel is formed in the hollow screw, and when the bone cement pushing and injecting assembly and the hollow screw are fixedly connected in place, the pushing and injecting channel is communicated with the drainage channel, so that the bone cement enters the vertebral body from the drainage channel. By means of double-hollow-screw locking and bone cement reinforcement of the screw channel, the stability of the whole structure is improved, stable internal fixation can be achieved, and the fusion rate is increased.

The present disclosure relates to an artificial lumbar disc and provides a lateral approach artificial disc that is inserted laterally rather than anteriorly of the spine, thereby preventing damage to blood vessels or other organs that may occur when an anterior access artificial disc is inserted from the front, shortening the surgical time, preventing dislodgment of the artificial disc, and improving the surgical prognosis. The artificial disc is inserted between two adjacent vertebrae and includes an upper plate contacting an upper vertebra, a lower plate contacting a lower vertebra, and an inserter inserted between the upper plate and the lower plate to allow the upper plate to rotate by a set angle with respect to the lower plate, and an upper wing portion and a lower wing portion are formed on the upper plate and the lower plate, which extend in an insertion direction and an installer direction in a state in which the inserter is inserted.

This utility model discloses a waterproof drainage device for water-based spinal endoscopic lateral approach surgery, relating to the field of water-based spinal endoscopic lateral approach surgery technology. This utility model aims to solve the problems of existing waterproof membranes and devices for water-based spinal endoscopy, which lack standardized specifications and are all custom-cut and set by the surgeon, leading to prolonged operation time, inconsistent quality, and wet towels on the back of prone patients, easily causing infection in the surgical area. Furthermore, poor drainage of fluids generated during prone lateral approach surgery can flow along the membrane and endoscope to the sterile towels laid on the operating table. If the patient sleeps on a wet operating table, it can cause intraoperative colds, postoperative shivering, even fever, and slow recovery. The fluid can also contaminate the sterile environment of the operating room floor. This utility model includes a three-sided foldable side panel and a three-sided waterproof membrane, with the three-sided waterproof membrane placed on the three-sided foldable side panel.

A retractor assembly and minimally invasive surgical techniques and implants. Such embodiments include techniques and implants for provision of therapy to a spine from a lateral approach. Embodiments of the invention include minimally invasive surgical techniques using one or more extended retractors to create an extended access route such as the non-limiting example of lateral access to the spine.

The utility model discloses a height-adjustable interbody fusion cage with an inclined outer side approach, which comprises a main body with a frame structure, a first upper blade is movably arranged on one end face of the main body, and a second lower blade is movably arranged on the end face, opposite to the first upper blade, of the main body; positioning holes are formed in opposite side faces of the main body respectively, the two positioning holes are located in the same straight line in the horizontal direction, and the center lines of the two positioning holes are also located in the same straight line; the end face, adjacent to the positioning hole, of the body is a threaded end face, and a threaded hole is formed in the threaded end face. The surfaces of the first upper blade and the second lower blade are inclined relative to the horizontal line, and acute angles are formed between the surfaces of the first upper blade and the second lower blade and the horizontal line. According to the utility model, the fusion cage has a height adjusting function, can be accurately adjusted after implantation, provides higher surgical operation flexibility, and ensures the optimal implantation position and fusion effect.