43 results about "Bone masses" patented technology

A composition for spinal disc repair comprising a plurality of uniformly shaped demineralized cancellous bone pieces ranging in size from about 2.0 mm to about 4.0 mm loaded into a porous mesh container with the cancellous bone pieces being treated so that they are not osteoinductive and are packed in the porous mesh container under compression forces.

The present invention relates to a method for making bone particles from bone of a variety of sizes and a workpiece forming and holding device for use with the method. The workpiece forming device includes a base and a base frame attached to the surface of the base. An apparatus for forming a solidified mass of bone and immobilization medium is also provided which includes the workpiece forming device and a detachable former member enclosing the base frame. Bone is immersed in an immobilization medium within such workpiece forming device, which is solidified to form a solidified mass of bone and immobilization medium and then subdivided to provide particles of bone in association to with immobilization medium. The immobilization medium may be optionally removed to leave bone particles suitable for use in orthopedic applications including implants.

A maxillofacial or cranial-facial surgical stabilizer comprising a head frame fully or partially surrounding the head of a patient at an angle running from ears to temple, and that is fixated to the skull of the patient by multiple screws and / or ear holders and screws. One or more flexible / locking arms are removably attached to the head frame for holding and positioning a plurality of interchangeable instruments or accessories. One flexible / locking arm is a medial / center arm accessorized with a dental arch mold. A method of using a head frame to position the pieces of bones during maxillofacial or cranio-facial surgery is also provided.

A system and method for securing a target body to a bone mass with a loop-in-loop suture anchor. The system generally includes suture material passing through a substrate (e.g., suture anchor). The suture material includes a splice that allows the suture material to be passed through the splice and around a target body, ultimately creating three loops in the suture material. By tensioning the loops and / or ends of the suture material, the loops bring the target body into a desired position relative to the bone mass and secure it in that position.

The invention discloses a fracture rehabilitation evaluation method based on a six-axis parallel external bone fixation device, which mainly comprises the following steps: adding a sensor to each branch chain of a prior six-axis parallel external bone fixation device, and restoring and fixing the fracture using a modified device; using a marker, wherein the space positions and postures of the fracture bone blocks and external bone fixation device are identified through the medical CT scanning; dividing the rehabilitation process into a first time period and a second period according to a clinical general rehabilitation phase dividing method, wherein, when a patient is in the first time period, the mechanical condition of the fracture part is measured and analyzed, and the external bone fixation device is finely adjusted and the patient is guided to carry out rehabilitation training; when the patient is in the second time period, the quantitative index of the fracture recovery is calculated, and the external bone fixation device is removed at appropriate timing. The method is suitable for all kinds of commercially available six-axis parallel external bone fixation devices, and haseconomy and convenience; according to the method, the quantitative evaluation of fracture rehabilitation is carried out by using an energy analysis method, and the reliability is good.

Disclosed herein is an improved Bone Tendon Bone graft for use in orthopedic surgical procedures. Specifically exemplified herein is a Bone Tendon Bone graft comprising one or more bone blocks having a groove cut into the surface thereof, wherein said groove is sufficient to accommodate a fixation screw. Also disclosed is a a method of harvesting grafts that has improved efficiency and increases the quantity of extracted tissue and minimizes time required by surgeon for implantation.

The invention provides a locking compression nail plate system for setting a bone. The system comprises a first fixing part (1) and a second fixing part (2). The first fixing part (1) and the second fixing part (2) are integrally formed and fixedly connected or detachably connected; the first fixing part (1) comprises a main bone plate (101), and a main rod locking hole (110) is formed in the mainbone plate (101); the second fixing part (2) comprises multiple branch bone plates (201), and auxiliary nails (202) are tightly fixed to the branch bone plates (201); the branch bone plates (201) include wavy parts (203). A Y-shaped nail plate design is adopted, a bone block is fixed at an angle after the system is implanted, the fixation strength is higher, and the axial stability of bone fractures is higher; a main nail and the auxiliary nails are of inverse thorn structures, the system is implanted by knocking, implantation is convenient, and a pull-out resistant force is higher; the inverse thorn-liked nails have less damage to metaphysis sclerotin of children, less bone amount is needed, and interference of internal implants on healing and development of metaphyseal bone fractures isreduced. By bending the wavy parts, the effect of pressurization can also be achieved to prevent formation of bone fracture gaps.

The invention provides a compression bone-set plating system, which comprises a first fixing portion (1) and a second fixing portion (2), wherein the first fixing portion (1) and the second fixing portion (2) are integrally formed, fixedly connected or detachably connected; the first fixing portion (1) comprises a main bone plate (101), and the main bone plate (101) is fixedly connected with a main nail (102) ; the second fixing portion (2) comprises a plurality of supporting bone plates (201), and a secondary nail (202) is fixedly connected on the supporting bone plates (201) ; the supportingbone plates (201) include a wave-shaped portion (203). According to the invention, the Y-shaped nail plate is adopted, and the bone blocks are fixed at angles after implantation, the fixing strengthis larger, and the axial stability of the fracture is higher; a barbed structure is adopted on the main nail and the secondary nail, the tapping is carried out to implant, the implantation is convenient, and the anti-pulling force is higher; the barbed nail has small bone damage on the metaphysis of the children, needs little bone mass, and reduces the interference of internal plants on the healing and development of the metaphysic fracture; the bending of wave-shaped portion can also serve as a pressurizing effect to prevent the formation of fracture gaps.

The invention belongs to the technical field of medical device design, and in particular relates to a CR-type and PS-type femoral condyle trial mold and an intercondylar processor function integrated structure, including an intercondylar milling cutter, a femoral condyle trial mold, an intercondylar trial mold, an intercondylar Processor and intercondylar osteotome, the intercondylar joint surface of described femoral condyle trial mold is matched with the joint curved surface of intercondylar trial mold; Described intercondylar processor comprises insertion end and connecting end, and described insertion end can be inserted with it In the intercondylar processor connecting hole on the matching femoral condyle trial mold, the connecting end can be connected with the intercondylar milling cutter and the intercondylar bone knife. The invention has the advantages of replacing the optimal operation plan and supporting tools at any time; reducing the number and cost of tools; ensuring the accuracy of the installation position of the prosthesis, reducing the mutual matching of various parts during the operation; and realizing effective bone saving.

The present invention provides a knee joint tibial plateau prosthesis, which includes a tibial plateau prosthesis and a tibial tubercle prosthesis, wherein the tibial tubercle prosthesis is arranged at the tibial tubercle of the tibial plateau prosthesis, and the tibial tubercle prosthesis is externally convex. Because the part of the tibial plateau prosthesis is a trabecular bone structure, there is a concave setting on the trabecular bone structure, which is used for placing the tibial tubercle from the insertion point of the patellar tendon to connect the patellar tendon to free the lower bone fragment. A solid beam with smooth surface is arranged across the notch of the beam, the beam and the bone trabecular structure are integrally arranged, and the prostheses on both sides of the beam are symmetrically provided with patellar ligament suture holes. Wherein, the placement groove can provide a replantation space for the bone fragment below the patellar tendon to be freed, and ensure that the patellar ligament is completely implanted on the tibial plateau prosthesis. The stress is dispersed, and the beam and the trabecular bone structure are integrally arranged, which further prevents the beam from loosening due to the long-term expansion and contraction of the patellar ligament.

An orthopedic fixation system fuses bone, bones, or bone pieces in a predetermined anatomical position. The orthopedic fixation system includes an implant that transitions between an unconstrained shape and a constrained insertion shape, a drill guide, first and second K-wires, and a cannulated drill bit. The drill guide and the first and second K-wires retain the bone, bones, or bone pieces in an anatomical position corresponding with the predetermined anatomical position. The cannulated drill bit fits over the first and second K-wires and drills, respectively, first and second drilled holes into the bone, bones, or bone pieces. After insertion of the implant into the first and second drilled holes, the implant attempts to transition from its constrained insertion shape to its unconstrained shape such that the implant continuously compresses the bone, bones, or bone pieces thereby holding the bone, bones, or bone pieces in the predetermined anatomical position.