17 results about "Acromioclavicular joint" patented technology

The invention relates to the technical field of medical instruments, in particular to an artificial ligament braided fabric. The artificial ligament braided fabric comprises a braided part, the braided part is formed by interweaving warp yarns and weft yarns, a mesh staggered structure is formed, the warp yarns extend in the width direction of the braided part, and the weft yarns extend in the length direction of the braided part. Compared with the prior art, by optimizing the weaving structure and the size design, the complex movement requirements of various joint parts such as the ankle joint and the acromioclavicular joint can be met, the stable fixing effect is provided, and the risks of loosening and shifting of the graft are reduced.

The utility model discloses an acromioclavicular dislocation reduction channel structure which comprises a clavicle channel cannula, an upper loop steel plate and a lower loop steel plate, the upper loop steel plate and the lower loop steel plate are connected through a loop line, the upper loop steel plate and the lower loop steel plate are located above and below the clavicle channel cannula respectively, and the loop line penetrates through the middle of the clavicle channel cannula. The clavicle channel cannula is conical, the open groove is formed in the side face of the clavicle channel cannula, the lower loop steel plate can conveniently penetrate through the clavicle to reach the position where coracoid restoration is needed by arranging the clavicle channel cannula, and the operation difficulty is reduced; and the lower loop steel plate directly reaches a preset area through the clavicle channel intubation tube, so that the injury to the tendon of a patient in an operation is reduced, and the discomfort generated after the injury operation is reduced.

The utility model relates to the technical field of medical instruments, in particular to a positioning device for assisting reduction and fixing acromioclavicular dislocation, which comprises a base plate, an acromion end positioning plate is arranged at one end of the base plate, and a clavicle end positioning block is arranged at the other end of the base plate. Holes are formed in the acromion end positioning plate, acromion end fixing guide needle sleeves are fixedly connected to the positions corresponding to the holes, a plurality of holes are formed in the base plate, and a first coracoshoulder ligament fixing guide needle sleeve, a second coracoshoulder ligament fixing guide needle sleeve and a clavicle end guide needle fixing sleeve are fixedly connected to the positions corresponding to the holes respectively. The positioning device can achieve accurate positioning, damage to blood vessels, nerve tracts and surrounding tissues below the coracoid process is avoided, and operation bleeding is reduced. Due to the fact that the individualized bone tunnel is established, the position where the belt carrier titanium plate is placed is appropriate, the osteolysis phenomenon is reduced, and meanwhile the risk of coracoid fracture is reduced. According to the operation method adopting the positioning device, the operation difficulty is remarkably reduced, the operation time is shortened, and the learning curve of young physicians is reduced.

The utility model provides an acromioclavicular joint memory fixator, which relates to the technical field of acromioclavicular joint memory fixators and comprises a lath-shaped fixator spindle, a plurality of groups of clavicle embracing branches, acromion locking branches, clavicle tooth-shaped fixing hooks and acromion arc-shaped fixing hooks. The clavicle tooth-shaped fixing hook and the acromion arc-shaped fixing hook are fixed to the two ends of a batten of the fixator main shaft respectively. The clavicle tooth-shaped fixing hook can be embedded into the clavicle; the clavicle embracing support is fixed on the middle section of the fixator main shaft to deviate from the clavicle section; the acromion locking branch is L-shaped; the L-shaped end of the acromion locking branch is connected with the middle section of the batten of the fixator main shaft; the angle between the acromion locking branch and the extending direction from the fixator main shaft to the acromion arc-shaped fixing hook is 21-25 degrees. The memory fixator for the acromioclavicular joint solves the problem that an acromioclavicular joint fixator in the prior art is poor in stability after fixation, and the fixing stability of the acromioclavicular joint can be improved.

The utility model belongs to the technical field of medical instruments, and particularly relates to an acromioclavicular joint ligament injury repairing device which comprises a shoe-shaped gold ingot anchoring plate, a tendon line and a button squeezing plate. The shoe-shaped gold ingot anchoring plate comprises an oval spherical arc-shaped plate, a limiting spherical semi-arc-shaped plate is arranged at the center of the inner arc surface of the oval spherical arc-shaped plate, a tendon line hole is formed in the limiting spherical semi-arc-shaped plate, the button squeezing plate comprises a disc hollow plate, a hollow round hole is formed in the center of the disc hollow plate, a basket rod is arranged in the hollow round hole, and the basket rod is connected with the limiting spherical semi-arc-shaped plate. The shoe-shaped gold ingot anchoring plate and the button squeezing plate are connected into a whole through the tendon line system, the problem that the shoe-shaped gold ingot anchoring plate and the button squeezing plate slide relative to the bone surface is solved, meanwhile, cutting abrasion of the tendon line is avoided, the service life of the device is greatly prolonged, the reliability of the device is improved, and postoperative recovery of a patient is facilitated.

The utility model belongs to the technical field of articular ligament repair, and particularly relates to a positioning guide device for acromioclavicular joint reduction ligament repair, which comprises a double-tooth clamp device and a guide sleeve, the double-tooth clamp device comprises a first clamp and a second clamp, the tails of the first clamp and the second clamp are provided with latches, and the guide sleeve is sleeved on the first clamp and the second clamp. The first clamp head is provided with upper teeth, the upper teeth are fixedly connected with a double-rail arc-shaped sliding rod, the second clamp head is provided with lower teeth, the lower teeth are fixedly connected with a concave arc column, the joint of the concave arc column and the lower teeth is provided with positioning teeth, the far end of the concave arc column is provided with a positioning bent column, and the guide sleeve comprises an outer guide cylinder. The acromioclavicular joint restoration device is convenient for the proceeding of an acromioclavicular joint restoration operation, not only can the acromioclavicular joint be pressurized and restored through the double-tooth clamp device, but also the acromioclavicular joint restoration device can be installed in a guiding manner, and the damage caused by too deep drilling of a kirschner wire or a hollow drill bit to subclavian nerve blood vessels at the lower edge of a coracoid process is effectively avoided.

The application discloses a bionic prosthesis for acromioclavicular joint reconstruction and relates to the field of orthopedic implant medical instruments. The bionic prosthesis comprises a clavicle prosthesis, a shoulder peak prosthesis and a connecting prosthesis. The clavicle prosthesis is fixedly connected with the clavicle; the shoulder peak prosthesis is fixedly connected with the shoulder peak; the connecting prosthesis is arranged between the clavicle prosthesis and the shoulder peak prosthesis, one end of the connecting prosthesis is movably connected with the clavicle prosthesis, and the other end of the connecting prosthesis is rotatably connected with the shoulder peak prosthesis. The clavicle prosthesis comprises a moving cylinder and a clavicle fixing assembly. One end of the moving cylinder is movably connected with the connecting prosthesis, an internal part of the other end of the moving cylinder is provided with a guide groove, and the first insertion end of the clavicle fixing assembly is movably arranged in the internal part of the guide groove along the direction in which the guide groove is arranged. When the clavicle and the shoulder peak move relatively, the clavicle prosthesis can be finely adjusted, the problem of stress concentration between the clavicle fixing assembly and the clavicle can be solved, and the dynamic activity requirement can be met.

The application discloses a shoulder lock joint dislocation minimally invasive reduction threading kit in the technical field of fracture threading reduction, which comprises a hooking wire clamp, a ring rotating hook rod, a threading clamp and a clavicle clamp. The hooking wire clamp is in a scissor-shaped structure capable of being opened and closed and is formed by connecting two straight rods through a rotating shaft. The two straight rods of the hooking wire clamp are both provided with holding handles at rear ends. The front end of one straight rod of the hooking wire clamp is rotatably connected with the ring rotating hook rod. The front end of the other straight rod of the hooking wire clamp is provided with the threading clamp. After the coracoid process of the scapula and the clavicle are positioned, the threading clamp can be used to stably penetrate along a rotating path into the bone to be positioned, so that the bone to be reduced can be precisely and quickly threaded. Because the holding is convenient and the stress is stable, the muscle and ligament are not easily disturbed, so that the device can conveniently and stably position the bone to be positioned and thread and wind.

The utility model relates to a positioning guider for acromioclavicular dislocation implantation surgery, which comprises a connecting part, positioning parts respectively arranged at two ends of the connecting part and a drill bit guide cylinder, a rotary sleeve in threaded fit is arranged on the outer surface, close to the bottom, of the drill bit guide cylinder, and a fixed shaft axially parallel to the rotary sleeve is arranged outside the rotary sleeve. An arc-shaped sleeve is rotationally arranged on the fixing shaft, a clamping part is arranged at the non-hinged end of the arc-shaped sleeve, and a limiting protrusion used for limiting the rotating stroke of the arc-shaped sleeve is arranged at the position, matched with the fixing shaft, of the arc-shaped sleeve. The clamping part is arranged outside the drill bit guide cylinder in a folded mode through the arc-shaped sleeve, when the drill bit is used, the unfolded clamping part can clamp an upper skeleton through relative rotation between the fixing shaft and the arc-shaped sleeve, the overall sectional area is small after the drill bit is folded, and the drill bit is convenient to use. And a wound caused in the process of placing the drill bit guide cylinder is smaller.

The utility model discloses a percutaneous positioning bidirectional adjustment coracoid-clavicle bone tunnel guider which comprises a base, a scale guide rod, a positioning guide needle, a sliding locking knob assembly, a height-adjustable guide rod assembly and an angle-adjustable guide sleeve assembly. The scale guide rod is fixedly connected to the upper portion of the base, the positioning guide pin sleeve is arranged on one side of the base, the positioning guide pin penetrates through the positioning guide pin sleeve and is fixed through the first limiting nut on the side wall of the positioning guide pin sleeve, and the sliding locking knob assembly is fixedly connected with one end of the height-adjustable guide rod assembly. The sliding locking knob assembly and the height-adjustable guide rod assembly are both arranged on the scale guide rod in a sleeving mode and can slide up and down, and the angle-adjustable guide sleeve assembly is movably connected to one side of the height-adjustable guide rod assembly. The coracoid bone tunnel drilling device is used for positioning and drilling the clavicle to the coracoid bone tunnel when the loop steel plate technology is used for treating acromioclavicular joint dislocation, coracoid side non-incision minimally invasive positioning can be achieved, trauma is small, bone tunnel positioning is more accurate, operation is convenient, and the clinical application effect is good.

The utility model provides a loop artificial ligament structure for shoulder dislocation treatment, which relates to the field of medical treatment and comprises an artificial ligament body, connecting loops are arranged at two ends of the artificial ligament body, each connecting loop is connected with a fixing buckle, and two symmetrical holes for the connecting loops to penetrate through are arranged on the fixing buckles. Compared with the prior art, when the loop artificial ligament structure for shoulder dislocation treatment is used, two hole sites are formed in the lower portion of the glenoid lip of a patient, the connecting loop and the fixing buckle are guided from the back of the shoulder to penetrate through the shoulder hole sites to the front of the shoulder through the guide line, the fixing buckle is blocked on a shoulder glenoid anterior bone hole opening, and then the shoulder glenoid anterior bone hole opening is formed in the shoulder glenoid anterior bone hole opening; therefore, the artificial ligament body is positioned on the subscapular muscle behind the shoulder, the subscapular muscle can be bound during a shoulder dislocation operation, the artificial ligament can also be used for ligament reconstruction such as acromioclavicular joint dislocation, and shoulder restoration of a patient is facilitated.

The invention discloses an acromioclavicular elastic internal fixing device which is mainly applied to the technical field of medical instruments and comprises a first fixator, a second fixator and a fixing wire rod, the first fixator is composed of a base plate A and implantation ends A, the two implantation ends A are arranged at the bottom of the base plate A, and the implantation ends A are provided with through holes and penetrate through the base plate A. The second fixator is composed of a base plate B and implantation ends B, two implantation ends B are arranged at the bottom of the substrate B, through holes are formed in the implantation ends B, and the implantation ends B penetrate through the substrate B. The fixing wire rod penetrates through the through holes of the implantation ends A and the implantation ends B in a crossed mode. The elastic internal fixing device for the acromioclavicular joint is convenient to use, the difficulty of an acromioclavicular joint dislocation operation is remarkably reduced, the operation quality is improved, the up-and-down and front-and-back elasticity of the acromioclavicular joint after operation is stable, the physiological structure of the acromioclavicular joint can be recovered, safety and reliability are achieved, rapid postoperative rehabilitation of a patient is facilitated, and pain of the patient is relieved.

This invention discloses a non-orthogonal design five-DOF isokinetic muscle strength assessment and rehabilitation platform for the shoulder joint, relating to the technical field of isokinetic muscle strength assessment and joint rehabilitation equipment. The device includes a two-DOF acromioclavicular joint, a sternoclavicular joint, and a three-DOF glenohumeral ball-and-socket joint; it comprises four active degrees of freedom and one passive degree of freedom, forming a five-DOF system, including the two-DOF acromioclavicular joint, the sternoclavicular joint, and the three-DOF glenohumeral ball-and-socket joint. The two-DOF acromioclavicular joint and the sternoclavicular joint are connected to the three-DOF glenohumeral ball-and-socket joint via fasteners. This invention solves the problem of the limited rehabilitation and assessment paradigms of traditional single-joint, single-DOF isokinetic instruments. It enables multi-DOF muscle strength assessment and rehabilitation training of the shoulder joint in adduction, abduction, internal and external rotation, and extension and flexion without the need to replace the mechanical adapter. It fully considers the actual degrees of freedom of the shoulder joint and adopts a non-orthogonal base structure design, improving the accuracy of joint muscle strength assessment and the efficiency of rehabilitation.

The utility model discloses an acromioclavicular joint dislocation reduction device, which relates to the technical field of medical instruments and comprises a positioner, and the positioner comprises a positioning handle, a sliding positioning bent handle, a positioning rod and a locking column. An abutting end is arranged on the positioning bent handle; a guide cylinder is arranged on the positioning handle, and a first transmission part is arranged in the guide cylinder; the positioning rod is mounted in the guide cylinder, a guide channel is formed in the positioning rod, and a second transmission part is arranged on the positioning rod; a guide sleeve rod is arranged in the guide channel; by arranging the positioning cylinder and the positioning rod, under the locking action of the first transmission part and the second transmission part, acting force can be applied to the acromioclavicular joint by rotating the positioning rod, the acromioclavicular joint is reset after being connected in an abutting mode, and the acting force does not need to be continuously applied to the positioning rod manually; the guide sleeve rod is arranged on the drilling equipment and provides guidance for the drilling equipment, the drilling equipment is guided to drill holes in the acromioclavicular joint through the guide channel, then the guide sleeve rod penetrates through the established bone tunnel to provide guidance for the guide wire, and the guide wire can conveniently penetrate through the bone tunnel.

The invention discloses a bionic prosthesis for acromioclavicular joint reconstruction, and relates to the field of orthopedic implantation medical instruments. The bionic prosthesis comprises a clavicle prosthesis used for being fixedly connected with a clavicle; the acromion prosthesis is used for being fixedly connected with the acromion; the connecting prosthesis is arranged between the clavicle prosthesis and the acromion prosthesis, one end of the connecting prosthesis is movably connected with the clavicle prosthesis, and the other end of the connecting prosthesis is rotatably connected with the acromion prosthesis; the clavicle prosthesis comprises a moving cylinder and a clavicle fixing assembly, one end of the moving cylinder is movably connected with the connecting prosthesis, a guide groove is formed in the other end of the moving cylinder, a first insertion end is arranged at the end, close to the moving cylinder, of the clavicle fixing assembly, and the first insertion end is movably arranged in the guide groove in the forming direction of the guide groove. When the clavicle and the acromion move relatively, the clavicle prosthesis can be finely adjusted, the problem of stress concentration between the clavicle fixing assembly and the clavicle is solved, and the dynamic activity requirement can be met.

A device that allows for the predictable / guided anatomic drilling of clavicular tunnels for graft, suture, or combined graft / suture reconstruction of the AC joint is provided. The device simultaneously allows for larger clavicle tunnels which permit graft passage while providing protection, via stress shielding, of the bone between and adjacent to the bone tunnels. In this way, the surgeon is able to utilize anatomically placed clavicular tunnels large enough for graft passage (which reduces the mechanical failure rate of the reconstruction and most closely replicates normal anatomy) while reducing the risk of clavicle fracture, which has plagued other “anatomic reconstruction” techniques.

The invention discloses a full-suture rivet composite adjustable tab titanium plate device for acromioclavicular joint reconstruction, which belongs to the technical field of medical equipment and comprises a full-suture rivet and a titanium plate. One end of the full-suture rivet is riveted to the outer end of the clavicle, and the other end of the full-suture rivet downwards penetrates through soft tissue in the acromioclavicular joint from the upward line outlet side of the outer end of the clavicle and upwards penetrates through the acromion from the lower side of the acromion to form an adjustable loop to be connected with the titanium plate. The operation efficiency is higher, the rehabilitation period of a patient is short, and the positive clinical practical significance is achieved.