30 results about "Anterior approach" patented technology

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 invention provides a lower limb length measuring and positioning assistor in horizontal position direct anterior approach hip joint replacement and a measuring method.The lower limb length measuring and positioning assistor comprises a first main body structure, a second main body structure, a first longitudinal connecting rod, a second longitudinal connecting rod and a transverse rod; the first groove structure is connected with a first extension rod, and the first extension rod is connected with one end of the cross rod through a first longitudinal connecting rod; the second main body structure comprises a second groove structure and a second extension rod, the second groove structure is connected with the second extension rod, and the second extension rod is connected with the other end of the cross rod through a second longitudinal connecting rod; the first extension rod and the second extension rod are parallel to the cross rod, the first groove structure is clamped at the anterior superior spine of one side of a patient, and the second groove structure is clamped at the anterior superior spine of the other side of the patient. The anterior superior spine bony marker can be accurately positioned, the angle consistency of the two lower limbs is ensured, the length measurement accuracy of the two lower limbs is ensured, and the length consistency of the two lower limbs after operation is ensured.

The utility model belongs to the field of slippage reduction tools, and particularly relates to an anterior cervical spondylolisthesis reduction tool which comprises an adjusting pipe, a fixing frame is fixedly connected to the left portion of the outer side of the adjusting pipe, an opening frame is slidably connected to the right portion of the outer side of the adjusting pipe, and a screw rod is installed in the adjusting pipe through a bearing. A limiting wheel is fixedly connected to the right end of the screw rod, a rotary knob is fixedly connected to the right end of the limiting wheel, a locking mechanism is arranged on the outer side of the adjusting pipe, a mounting pipe is fixedly connected to the ends, away from the adjusting pipe, of the fixing frame and the opening frame, and an inner threaded pipe is fixedly connected to the interior of the mounting pipe; and the interior of the internal threaded pipe is connected with a screw through a thread. Due to the fact that the screw, the inner threaded pipe, the T-shaped base and other structures are additionally arranged on the installation pipe, the installation pipe can be installed on the fixed outer side of the cervical vertebra through the screw in the using process, and therefore the tool can be more stable during resetting, and slipping is avoided.

This invention discloses a novel anterior locking bone plate specifically for internal fixation of the second and third cervical vertebrae, belonging to the field of orthopedic implant technology. The bone plate comprises an upper plate for fixation to the second cervical vertebra and a lower plate for fixation to the third cervical vertebra, the upper and lower plates being an integral structure. In the sagittal plane, the angle between the upper and lower plates is 100-150 degrees; in the horizontal plane, both the upper and lower plates are curved surfaces, with the upper plate having a radius of curvature of 9-10 mm and the lower plate 11-12 mm; in the coronal plane, the plate is an isosceles trapezoid, narrower at the top and wider at the bottom. Based on the location of the second cervical vertebra, this invention finds a suitable approach that avoids obstruction of the surgery by the mandible while providing maximum holding force and stability. It optimizes the transverse and longitudinal curvature and overall shape of the bone plate, improving its conformity to the morphology of the second cervical vertebra, making the surgery safer and more fitting, and providing reliability and convenience unattainable by traditional bone plates.

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.

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.

A device, kit and method for the correction of spinal deformity using an anterior approach. The device comprises a screw-head platform, wherein the screw-head platform comprises a primary recess for receiving a primary rod, and a main vertebral body screw rotatably connected to the screw-head platform.

An orthopaedic system for use in a direct anterior approach orthopaedic hip replacement procedure on a patient's femur includes a proximal guide instrument (14) for guiding a flexible insertion instrument (12) for placing a cement restrictor component (16, 18). A method for placing a cement restrictor component during performance of a direct anterior approach orthopaedic hip replacement procedure is also disclosed.

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.

An orthopaedic surgical system for a direct anterior orthopaedic hip replacement procedure performed on a patient's femur includes an insertion instrument having a depth limiter with a rotatable guide arm to mount a cemented femoral stem component at a desired depth. A method of installing a cemented femoral stem component during performing a direct anterior orthopaedic hip replacement procedure is also disclosed.

An expandable interbody spacer that is delivered in the anterior approach with adjustable height and end plate angulation (lordosis). The expandable interbody spacer is configured to have an initial collapsed state having a first height suitable for being inserted into an intervertebral space defined by a pair of adjacent vertebrae, and an expanded state having a second height that is greater than the first height. The expandable interbody spacer may be expanded from the initial collapsed state to the expanded state in-situ. The expanded state increases the distance between the adjacent vertebrae and provides support to the adjacent vertebrae while bone fusion occurs and also provides rigid support between the adjacent vertebrae that withstands compressive forces.

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 invention relates to the field of lumbar fusion cage holders. The invention discloses an anterior fusion cage holder for expanding thoracolumbar vertebrae and a using method thereof. The anterior fusion cage holder comprises a placing frame, and a fusion cage holding rod is fixedly arranged at the bottom of the placing frame. The fusion cage is placed in the moving frame and limited through the two T-shaped clamping plates, then a clamping strip slides leftwards to relieve fixation of a spline shaft, then a rotating block is rotated through the thumb of a medical worker, the spline shaft and a first gear are driven to rotate, and the fusion cage is fixed through the first gear. Then a pushing strip, a driven rack and a moving frame are driven to move rightwards to an area for supporting the lumbar vertebra gap of the patient, at the moment, a placing frame relieves limiting of two T-shaped clamping plates, the fixing state of the T-shaped clamping plates is relieved, and then it is guaranteed that the fusion cage is placed in the thoracolumbar vertebra of the patient stably; a doctor can conveniently and quickly move the fusion cage to a proper area, and the risk of an operation is reduced.

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.

A steel plate assembly for bilateral lifting fusion of centrum and a fixing system for bilateral lifting fusion of centrum relate to the field of surgical instruments and comprise an anterior cervical steel plate body, the anterior cervical steel plate body is provided with a positioning through hole for selectively allowing a fixing screw or a lifting nail to penetrate through, and the positioning through hole is provided with a through hole for selectively allowing the fixing screw or the lifting nail to penetrate through. The two ends of the anterior cervical plate body are used for being fixed to a vertebral body through fixing screws. The two sides, in the width direction, of the anterior cervical plate body can avoid the slotting position in the vertebral body when the two sides are lifted. The design of the steel plate assembly can enlarge the surgical field, reduce the surgical difficulty and improve the surgical success rate; the stress of the centrum can be dispersed, and the success rate of upward movement of the centrum is increased.

The invention discloses a proximal femur lifting device for direct anterior approach hip replacement, which belongs to the technical field of medical instruments and comprises a fixing unit, a multi-stage positioning arm, a base plate, a support column, a lifting slider, a stepping lifting mechanism and a prying and lifting support. The fixing unit is used for being installed on the operating bed side. The multi-stage positioning arm is connected with the fixing unit and the base plate and can adjust the position of the base plate; the supporting column is vertically erected on the base plate; the lifting sliding block is sleeved on the supporting column and is driven by the stepping lifting mechanism to lift; the prying and lifting support is fixed to the lifting sliding block, and a supporting clamping groove is formed in the prying and lifting support. By means of the structure, a stable force application fulcrum with the height and the angle capable of being adjusted in multiple directions is provided for the operation bone pry, the problems that in the prior art, operation is not stable, and control is difficult are solved, and safe, controllable and stable lifting of the proximal femur can be achieved.

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 device 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 implant device are configured to be used in an anterior lumbar interbody fusion (ALIF) procedure.

The invention discloses a connecting device for preventing an artificial vertebral body from moving backwards in an anterior cervical surgery, and relates to the technical field of medical instruments, the connecting device comprises a far end connected with the artificial vertebral body and a near end connected with a steel plate, and the far end and the near end are connected through a middle part. The near end is connected to the steel plate, the far end is connected to the titanium mesh, the titanium mesh is fixed relative to the steel plate by arranging the titanium mesh fixing device between the steel plate fixed to the vertebral body and the artificial vertebral body (titanium mesh), and the problem that the titanium mesh is prone to moving backwards after an operation is solved.

An orthopaedic surgical system for a direct anterior approach orthopaedic hip replacement procedure performed on a femur of a patient, the orthopaedic surgical system comprising a proximal guide instrument (14) for guiding a flexible insertion instrument (12) to mount a cement limiter component (16, 18). A method of installing a cement limiter component during performing a direct anterior approach orthopaedic hip replacement procedure is also disclosed.

A method of single position 360 degree cervical fusion includes positioning a patient in a lateral position on an operating table, orienting and maintaining the patient's spine at a desired sagittal plane alignment, performing anterior cervical disc fusion (ACDF), reorienting and maintaining the patient's head to facilitate posterior approach, and performing posterior fixation. Devices and systems configured to facilitate performing a single-position 360-degree cervical fusion method are also provided.

The utility model provides a titanium mesh style cervical vertebra anterior approach operation internal fixation system, including protective cover, connecting frame, first mounting groove, second mounting groove and fixed plate, protective cover bottom sleeve is connected with connecting frame top end, be equipped with a plurality of equidistant reinforcing rib between connecting frame, the outside of connecting frame is equipped with first mounting frame, the outside of connecting frame is equipped with second mounting groove, the fixed plate is equipped with second mounting groove, the fixed plate is equipped with second mounting groove. Second mounting frames are arranged on the inner sides of the connecting frames, first titanium meshes are arranged between the first mounting frames, second titanium meshes are arranged between the second mounting frames, sliding blocks are fixedly connected to the two sides of the connecting frames through fixing threaded rods, sliding grooves are formed in the outer walls of the fixing plates, and the interiors of the sliding grooves are fixedly connected to the middles of the sliding blocks. Reinforcing ribs penetrate through the interiors of the two connecting frames and penetrate through the arc-shaped fixing plates in the two connecting frames, the strength of the whole titanium mesh device is conveniently enhanced by arranging the reinforcing ribs and the arc-shaped fixing plates, and the fixing area is conveniently increased by arranging extension plates in the middles of the fixing plates.

The utility model relates to the technical field of medical instruments, in particular to a self-stabilization type lumbar lateral anterior zero-incisura fusion cage which comprises a fusion cage body, the fusion cage body is of a cuboid-like structure, the fusion cage body comprises an upper surface, a lower surface and two side walls in the long side direction, and the fusion cage body comprises a cut-in face and a holding face in the short side direction. The upper surface and the lower surface are each provided with a plurality of anti-skid teeth, the side, close to the cut-in face, of each anti-skid tooth is an anatomical face, and the included angle between the anatomical face and the holding face is an acute angle, so that the extending direction of the anti-skid teeth is consistent with the front-back direction of the lumbar vertebra. According to the self-stabilization type lumbar lateral anterior zero-incisura fusion cage, it can be guaranteed that the fusion cage body does not need to be transversal after being implanted, the operation time is shortened, and the operation difficulty is reduced.

A vertebral body replacement device, dimensioned for implantation between a first and second vertebral bone is described. The vertebral body replacement device includes a superior endcap, an inferior endcap and a central core between the superior and inferior endcaps. The vertebral body replacement device further includes a fusion aperture extending through the superior and inferior endcaps and central core. The vertebral body replacement device is made of radiolucent material and can be implanted from a lateral or anterior approach to the spine.

The invention discloses a split fusion cage compatible with direct decompression and end plate conformal bone grafting of an anterior spinal flexible robot. The split fusion cage comprises a first main body section, a second main body section and a third main body section, the first main body section is L-shaped and comprises a longitudinal supporting part and a transverse supporting part, and a first connecting part is arranged at the end, away from the longitudinal supporting part, of the transverse supporting part; the first main body section is provided with an inlet side parallel to the transverse supporting part and an outlet side parallel to the longitudinal supporting part, and the first main body section is used for enabling the flexible mechanical arm to enter and penetrate out of a spinal canal to extend into the spinal canal for direct pressure reduction operation; the second main body section is detachably connected to the first connecting part, and a U-shaped structure with a bone grafting cavity is defined by the second main body section and the first main body section; the third main body section is of a plate-shaped structure, and an O-shaped structure is defined by the third main body section, the second main body section and the first main body section. A split structure is adopted, an access channel and an operation space are provided for the flexible mechanical arm, direct pressure reduction operation is facilitated, in-vivo bone grafting can be carried out, and the adaptation of a bone grafting object and an end plate in shape is increased.

An orthopedic system for use in direct anterior approach orthopedic hip replacement procedures for the femur of a patient includes a stem insertion device (12) having an offset locking shaft (68) for placing a cementless femoral stem (14) component into the surgically prepared intramedullary canal of the patient.

The invention provides a high-stability automatic lumbar major muscle retractor device for lumbar lateral anterior surgery, and belongs to the technical field of medical apparatuses and instruments. A connecting rod; the first locking clamping piece is arranged on the circumferential surface of the connecting rod in a sleeving manner; the movable sleeve is arranged on the circumferential surface of the connecting rod in a sleeving manner; according to the high-stability lumbar major muscle automatic drag hook device for the lumbar vertebra lateral anterior approach surgery, through the well-designed structures such as the connecting rod, the first locking clamping piece and the sleeve, the high stability of the device in the surgery process is achieved. Due to the stability, accidental movement in the operation is effectively avoided, the operation risk is reduced, and the safety of the operation is improved. And meanwhile, the automatic adjusting function ensures that the draw hook rod and the draw hook head end can keep proper strength and angle when drawing the lumbar major muscle, so that the smooth operation is further ensured.

An orthopaedic surgical system for a direct anterior approach orthopaedic hip replacement procedure performed on a patient's femur includes a stem insertion instrument (12) having a biased locking shaft (68) to mount a non-bone cement femoral stem (14) component into a surgical prepared intramedullary canal of the patient.

The utility model relates to the technical field of medical instruments, in particular to a lumbar lateral anterior zero-incisura fusion cage which comprises a fixing plate. The fusion cage body and the pair of locking pieces are connected to the same side of the fixing plate; the pair of locking pieces is located on the two sides of the fusion cage body, and the pair of locking pieces are parallel to each other. According to the lumbar lateral anterior zero-incisura fusion cage, the fusion cage body and the pair of locking pieces are both connected to the same side of the fixing plate, the pair of locking pieces are located on the two sides of the fusion cage body and are parallel to each other, multi-segment implantation can be achieved, the implantation angle of the locking pieces is easier to master in the operation, the operation time is shortened, and when the fusion cage is used, the fusion cage is not prone to being damaged. Bone cement can be pre-prepared in the nail channel in advance, the locking piece and the fusion cage body are implanted, the fixing plate is finally implanted, the fixing plate is connected with the locking piece, an operation is completed, the operation is more visual, operation is convenient, and the fusion cage is suitable for being used by common patients and osteoporosis patients and wider in application range.

Devices and methods for anterior transpedicular fixation and posterior revision including one or more transpedicular screws configured for insertion into a vertebra from an anterior approach and / or one or more revision screws.

Devices, systems, and methods configured to treat spinal deformities, such as anterior scoliosis correction. A bilateral anterior system may include a bilateral anterior screw having a threaded shaft with modular connectors at each end. The bilateral anterior screw is configured to extend completely through a vertebral body such that the modular connectors are exposed on both sides of the vertebral body. An ipsilateral construct including a first rod or cord is securable to the modular connector on an ipsilateral side, and a contralateral construct including a second rod or cord is securable to the modular connector on a contralateral side, thereby completing a bilateral stabilization.