38 results about "Tibial tuberosity" patented technology

An AMZ tibial tuberosity transfer system and method of treatment of patellofemoral joints. The AMZ system includes 1) a retractor with a better conformation to anatomy and more curve (not just a bend), and also with a larger radius on the front of the retractor to allow for easier insertion; 2) a cutting block that can fully accept a collared pin; 3) a rod preferably formed of stainless steel; 4) a tuberosity pin guide; 5) an exit indicator that engages tightly the cutting block so there is no slope on exit indication; and 6) a horizontal bar provided with markings to measure the medial shift.

Surgical devices, kits and methods of using thereof are described. Generally, the surgical kit includes an osteotomy guide device and/or a bone spacer guide device. The surgical kit can be used in a surgical method for correcting a malalignment of the knee joint that involves performing a fibular osteotomy and/or a tibial osteotomy, and/or administering stem cells. Generally, the osteotomy guide device is configured to allow drilling to occur around the tibia and across a horizontal cross-sectional plane of the tibia so that a direction of each of the drill holes that are formed in the tibia is substantially parallel to or on the same horizontal cross-sectional plane of the tibia. The osteotomy guide device allows drilling to be conducted efficiently and accurately.

Methods and implants to treat anterior cruciate ligament (ACL) injuries are disclosed. The methods involve advancing the insertion of the patellar tendon to the proximal tibia by means of a partial osteotomy and a wedge-shaped cage (30). The wedge-shaped cage is specifically designed to facilitate transfer of not only compressive loads, but also of shear loads due to pull by the patellar tendon at its insertion to the tibial tuberosity. The cage decreases the angle between the patellar tendon and the common tangent plane formed by the condyles of the femur and the condyles of the tibia (sometimes called tibial plateau) and consequently modifies the internal joint force, restoring stability to the joint even if the ACL is ruptured. The methods and implants are applicable to both human and canine patients.

Apparatus for performing a multidirectional tibial tubercle transfer, comprising a jig for positioning against the anterior portion of the tibia, the jig comprising first and second guide surfaces which simultaneously converge towards one another as they extend distally down, and posteriorly towards, the tibia; a medial extender for attaching to the jig, wherein the medial extender comprises a third guide surface which is directed towards a point distal to the point of convergence of the first and second guide surfaces as the third guide surface extends distally down, and posteriorly towards, the tibia; and a lateral extender for attaching to the jig, wherein the lateral extender comprises a fourth guide surface which is directed towards a point distal to the point of convergence of the first and second guide surfaces as the fourth guide surface extends distally down, and posteriorly towards, the tibia.

Patient-specific guides for a tibial tubercle osteotomy are provided. The guides include a guide body defining a portion with a bone-engaging surface that conforms as a negative surface to a corresponding surface of a specific patient's tibia, and a guide portion that guides a surgical instrument to a specific location on the specific patient's tibia, wherein the bone-engaging surface and guide portion are configured during a pre-operative planning stage. Methods for performing a tibial tubercle osteotomy with the patient-specific guides are also provided.

A garment for promoting dynamic alignment of a knee of a wearer, comprising a sleeve configured to substantially conform to the knee, upper calf and lower thigh of the wearer, a strap positioned on the sleeve so as to provide a tension to promote an outward turning of the knee during flexion and extension of the knee, and wherein when the sleeve and strap are in its operative positions, a first end of the strap is attachable at a first position of the sleeve and a second end of the strap is attachable to a second position of the sleeve where the first position is medial and inferior to the patella and the second position is superior of the popliteal area behind the knee, and wherein the strap extends from the first position to the second position across the patella or tibial tuberosity and lateral aspect of the knee.

The invention provides a fixing structure for tibial tuberosity fracture. The fixing structure comprises a wrapping structure and a hooking structure, the wrapping structure is suitable for wrapping atibial tuberosity fracture block and bone tissues around the tibial tuberosity fracture block and is fixed by screws, and the hooking structure is fixedly arranged on the wrapping structure and is suitable for being hooked at the joint of the patellar ligament and the fracture block. According to the fixing structure, a wrapping method is adopted, the fracture block and bone tissues located around the fracture block are tightly wrapped after being reset and squeezed, and fixing is achieved through the multiple screws; after the hooking structure is arranged, the hooking structure is hooked atthe joint of the patellar ligament and the fracture block, the fracture block is prevented from being pulled to be deviated by the patellar ligament, and the force for resisting the patellar ligamentto pull the fracture block to be deviated comes from the whole wrapping structure instead of a single screw; and through the arrangement, excessive force is prevented from being applied to a single position of a bone, and the problem of comminuted fracture caused by fixing the fracture block can be avoided as much as possible. For patients with osteoporosis, the fixing structure can also be adopted according to conditions.

A tibial tuberosity advancement implant and method includes a spacer body made of biocompatible, biodegradable material and having a main section with at least one bony growth orifice therethrough and a proximal slot and at least one fin extending from the main section by at least one connector. A metal clip is slideable into the proximal slot of the spacer body main section and includes spaced screw holes for securing the spacer body to the advanced tibial tuberosity and the tibia when the implant is placed in the space between the advanced tibial tuberosity and the tibia.

The orthosis (10) is related herein and comprises an elastic compressive distal portion (14), extending upwards from the ankle, associated with an adjacent rigid splint proximal portion (16), enveloping the region of the calf comprised between the level of the point where the Achilles tendon joins the calf muscles and the level located below the tibial tuberosity. This rigid splint proximal portion (16) is an essentially non-elastic, deformable tubular portion, made by: placing the orthosis onto a template representative of the morphology of the patient's calf; applying in situ on the orthosis, in the region of the splint proximal portion, a hardenable biocompatible resin; hardening the resin with the orthosis maintained on the template; and removing the orthosis in its finished state.

The invention provides a knee joint tibial plateau prosthesis. The prosthesis comprises a tibial plateau prosthesis and a tibial tubercle prosthesis, wherein the tibial tubercle prosthesis is arrangedat tibial tubercle of the tibial plateau prosthesis, the part, bulging out of tibial plateau prosthesis, of the tibial tubercle prosthesis is of a bone trabecula structure, a placement groove which is arranged in a concave manner and used for connecting the tibial tubercle to a patellar tendon free lower bone block at a patellar tendon stop point is formed in the bone trabecula structure, a solidcross beam with a smooth surface is arranged at a groove opening of the placement groove in a spanning manner, the cross beam and the bone trabecula are integrally arranged, and patellar ligament suture holes are symmetrically formed in the prosthesis on two sides of the cross beam, wherein the placement groove can provide a back implantation space for the patellar tendon free lower bone block toensure that the patellar ligament is completely implanted in the tibial plateau prosthesis, the patellar ligament can be integrally wound and fixed through the cross beam, stress dispersion of the patellar ligament can be avoided, the cross beam and the bone trabecula structure are integrally arranged, and looseness of the cross beam under long-term telescoping drive of the patellar ligament is further avoided.

The invention discloses an oral traditional Chinese medicine composition for treating epiphysitis of tibial tuberosity. The oral traditional Chinese medicine composition is prepared from the following medicinal raw materials: radix pseudostellariae, rhodiola rosea, radix dipsaci, semen cuscutae, radix achyranthis bidentatae, hypericum sampsonii hance, corydalis tuber, radix curcumae, coix seed, selfheal and bombyx batryticatus. The oral traditional Chinese medicine composition provided by the invention is used for treating the epiphysitis of tibial tuberosity and in line with the physiological characteristics of immature yin and yang of children and has a good curative effect, a small side effect and high compliance of sick children.

The invention discloses an osteotomy guide plate in an operation of precisely treating tibial tuberosity introversion, includin a fixing part and an osteotomy plane. The fixing part and the osteotomyplane are fixed at a certain angle; the fixing part is provided with a curved surface matched with the outer contour of the tibia; at least three pre-drilled holes which are not located on the same straight line are formed in the fixing part and are fixed to the tibia through hollow rivets. And the osteotomy plane is arranged between the tibia and the osteotomy block to form an osteotomy operationarea. By means of a 3D printing osteotomy guide plate technology, the artificial error caused by an operation is reduced, the osteotomy position and the osteotomy depth are more accurate, and the osteotomy inward movement distance is more accurate; the 3D printing osteotomy guide plate helps simplify the operation process, improve the operation efficiency, shorten the operation time and reduce the trauma to a patient, and is beneficial to postoperative recovery; and generally speaking, the 3D printing osteotomy guide plate is more accurate, individualized and safer for use.

The invention discloses an external fixing frame. The external fixing frame comprises a traction plate and a traction needle fixedly connected with the traction plate, and further comprises a thread transmission mechanism which is fixedly connected with the traction needle and drives the traction needle to move in the axial direction. When the external fixing frame is used, a periosteum is stripped under a tibia tuberosity of a patient, a small bone block is cut out, the periosteum on the surface of a tibia is protected, firstly, the traction plate is arranged between the cut tibia bone block and the periosteum on the surface of the tibia, then, the traction needle is connected with the traction plate and the bone block, finally, the thread transmission mechanism drives the traction needle to move in the axial direction of the traction needle. Therefore, by driving the traction needle and the traction plate to move, the periosteum is pulled while the bone block is pulled, so that vasculature neogenesis at a shank part can be promoted, neovasculature can be established, nutrient blood at the shank part can be increased, and then natural healing of a diabetic foot wound surface is promoted.

The invention discloses a novel tibial tuberosity traction model which comprises surface skin and a femur, a hip joint is installed above the femur, a groove is formed in the inner side of the hip joint, a ball socket type joint is arranged in the groove, a tibia is arranged below the femur, and the femur and the tibia are located in the surface skin. A connecting ring is connected between the tibia and the femur, an ankle joint is arranged at the bottom of the tibia, and a simulated knee joint is installed on the front side of the connecting ring. According to the novel tibial tuberosity traction model, the surface skin, the femur and the tibia are manufactured strictly according to human anatomy, internal muscles are filled with elastic sponge, the first detachable skin, the second detachable skin and the third detachable skin are consistent in structure, splicing with the surface skin is completed through patches and fixing nails, and the novel tibial tuberosity traction model is detachable. The model is mainly used for evaluating traction quality, regional sclerotin and skin can be replaced, and repeated use of the model is facilitated.

A tibial tubercle internal fixation bone fracture plate comprises a central part (1), a head part (2), side parts (3) and a tail part (4), and is characterized in that the central part (1) is matchedwith the front part of a tibial tubercle and is provided with 2.4 mm or 2.7 mm locking holes or pressurizing holes, screw holes are uniformly distributed, and locking screws or cortical bone screws can be placed in the screw holes; the upper part of the central part (1) is connected with two thin plates of the head part (2), the thin plates are parallel left and right and are respectively providedwith 2.4 mm or 2.7 mm locking holes or pressurizing holes, and locking screws or cortical bone screws can be placed in the locking holes or the pressurizing holes; the two sides of the center part (1) are each provided with two side part (3) thin plates, the thin plates on the two sides are parallel to each other up and down and are provided with 2.0 mm locking holes or 2.0 mm pressurizing holes,and locking screws or cortical bone screws can be placed in the locking holes or the pressurizing holes; and the tail end of the central part (1) is provided with three thin plates of the tail part (4), which are mutually dispersed towards the far end and are respectively provided with 2.4 mm or 2.7 mm locking holes or pressurizing holes, and locking screws or cortical bone screws can be placed in the locking holes or the pressurizing holes.

The invention relates to a tibial tuberosity traction device for an osteoporosis patient. The tibial tuberosity traction device comprises a traction bow, a first traction needle and a second tractionneedle. The second traction needle is arranged below the first traction needle and is crossed with the first traction needle in the horizontal direction to form a preset horizontal included angle a. The traction bow is connected with the first traction needle, and two adjusting rods with the adjustable length are arranged between the first traction needle and the second traction needle. Universalballs are arranged on the adjusting rods, and the adjusting rods are rotatably connected with the first traction needle and/or the second traction needle through the universal balls. The tibial tuberosity traction device is simple in structure, reasonable in design, convenient to use, suitable for osteoporosis patients and capable of preventing the traction needle from loosening, relieving pain ofthe patients and enhancing the traction effect.

According to the technical scheme, the teaching model is characterized in that the teaching model comprises a simulated femur, a simulated tibia and simulated skin and flesh wrapping the outer side of the simulated femur and the outer side of the simulated tibia, and through holes penetrating through the two sides are formed in the tuberosity bone position of the simulated tibia; an embedded part for a bone nail to penetrate through is arranged in the through hole, is used for simulating a human skeleton and is made of a material with the hardness similar to that of the skeleton, and the outer diameter of the embedded part is larger than that of the bone nail; the simulated skin and flesh comprises thighbone skin and flesh fixed on the simulated thighbone, tibia skin and flesh fixed on the simulated tibia, and detachable skin and flesh detachably and fixedly connected between the thighbone skin and flesh and tibia skin and flesh, and the detachable skin and flesh are correspondingly arranged at the tuberosity of the simulated tibia and can completely cover the embedded part. The whole treatment process can be continuously familiar through continuous practice and simulation operation on the human body model during learning, and a real patient can conveniently master a correct operation process.