9 results about "Acromioclavicular joint" patented technology

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 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.

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.

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.