9 results about "Osteogenesis distraction" patented technology

The invention belongs to the technical field of medical instruments, and particularly relates to a multidirectional distraction osteogenesis correction system, in the multidirectional distraction osteogenesis correction system, the distance between a first fixing sleeve and a second fixing sleeve in supporting assemblies can be adjusted through a second traction assembly, and the distance between the two sets of supporting assemblies can be adjusted through a first traction assembly; the bilateral tooth-bone metastasis plate can be adjusted in the two-dimensional moving direction and the moving amount, the bilateral tooth-bone metastasis plate is allowed to move asymmetrically, transverse and sagittal differential distraction osteogenesis is achieved, and the bilateral tooth-bone metastasis plate is particularly suitable for cleft lip and palate patients with maxillary sagittal and transverse development insufficiency. According to the multidirectional distraction osteogenesis correction system, bilateral asymmetric distraction osteogenesis can be achieved, unilateral / bilateral alveolar process fractures of the front section of the maxillary dental arch are narrowed, the success rate of an alveolar process fracture bone grafting operation is increased, the alveolar bone mass of the middle section of the maxillary dental arch is increased, dentition congestion is relieved, space is provided for repair treatment, and the difficulty of subsequent treatment such as orthognathic surgery is reduced.

The application discloses a design method of an integrated titanium plate assembly for assisting midfacial suture distraction external support traction, comprising the following steps: scanning a target object by a medical scanning device to obtain a three-dimensional model of the internal structure and tissue of the target object, wherein the three-dimensional model at least comprises independently displayable bone structure and dental tissue; performing bone analysis on the bone structure of the target object based on the three-dimensional model to obtain the weak point of the bone structure; obtaining the tooth root position of the dental tissue of the target object based on the three-dimensional model; selecting the shape and size of an integrated titanium plate assembly model based on the bone analysis result, and determining the fixed hole position of the integrated titanium plate assembly model based on the tooth root position; and generating an integrated titanium plate assembly three-dimensional model based on the shape, size and fixed hole position of the integrated titanium plate assembly model. According to the individual differences of patients, the integrated titanium plate assembly for assisting midfacial suture distraction external support traction is designed to be more suitable for patients, and the postoperative traction effect is improved.

The utility model discloses a kind of fixators used in cooperation with distraction osteogenesis device, including clamp and fixed sleeve;Clamp: its left and right sides are provided with connecting mechanism, the connecting mechanism includes fixed plate, flexible strip, connecting plate and annular buckle, the left and right sides of clamp are provided with fixed plate, the lower end of fixed plate is fixedly connected with flexible strip, the lower end of flexible strip is fixedly connected with connecting plate, the middle part of opposite inner side of two connecting plates is equipped with annular buckle;Fixed sleeve: its outer camber surface is equipped with side wing, the inside of fixed sleeve is provided with hexagon hole, fixed sleeve is respectively clamped in the inside of annular buckle, the connecting mechanism further includes spring piece and connecting seat, the opposite inner side of two connecting plates is equipped with spring piece, which is symmetrically distributed up and down, the fixator used in cooperation with distraction osteogenesis device, distraction osteogenesis device is fixed by hexagon hole, avoid distraction osteogenesis device and occur rotation due to being acted on.

Systems and methods for improved cranio-maxillo-facial distraction are provided. The disclosed subject matter can include a distraction device adapted for subcutaneous implantation in a patient, and a handheld device operationally coupled to the distraction device. The distraction device can include a distraction element, adapted to attach to opposing bony fragments of a bone and perform distraction osteogenesis on the bone, and a rotatable magnetic element, coupled to the distraction element such that rotation of the magnetic element controls the distraction element. The handheld device can include a magnetic element, operationally coupled to and magnetically aligned with the magnetic element of the distraction device, such that rotation of the magnetic element of the handheld device causes corresponding rotation of the magnetic element of the distraction device. The disclosed subject matter also provides techniques for implanting a distraction device to opposing bony fragments of a bone and using such a device.

The application discloses a positioning traction device for maxillofacial distraction osteogenesis, which comprises a distraction osteogenesis device corresponding to maxillofacial soft tissue and an osteotomy guide plate corresponding to teeth; one end of the distraction osteogenesis device corresponds to maxillofacial soft tissue, and the other end of the distraction osteogenesis device corresponds to maxillofacial osteotomy soft tissue, so as to position the relative position between the maxillofacial soft tissue and the maxillofacial osteotomy soft tissue; the osteotomy guide plate comprises a connecting part which is detachably connected with the distraction osteogenesis device, so as to position the spatial position of the distraction osteogenesis device. The application has the beneficial effect that in the device, the relative position between the maxillofacial soft tissue and the maxillofacial osteotomy soft tissue is fixed by the distraction osteogenesis device, and the spatial position of the distraction osteogenesis device is positioned by the connecting part of the osteotomy guide plate, so as to determine the relative position between the maxillofacial soft tissue and the maxillofacial osteotomy soft tissue, and the distraction osteogenesis operation can be finely controlled during the operation, so as to achieve the safe, fast, accurate and stable distraction osteogenesis operation purpose.

The present invention pertains to devices and methods for distraction osteogenesis, with a particular focus on distraction devices and systems used to treat mandibular or maxillary alveolar ridge atrophy. It also includes methods for using these devices or systems for bone tensioning.

The utility model provides a head frame with an improved adjusting assembly for a suturing traction osteogenesis. The head frame comprises a fixing frame, fixing plates are arranged on the two sides of the fixing frame, fixing rods are arranged at one ends of the fixing plates, fixing sleeves are arranged on the two sides of the fixing frame, the fixing rods are clamped in the fixing sleeves, and the fixing plates are connected with the fixing frame in a sliding mode. A plurality of sets of fastening screw holes are formed in the fixing plate, the fastening screws are arranged in the fastening screw holes in a penetrating mode, a sliding rod is arranged on the fixing frame, and a traction assembly is arranged below the fixing frame and arranged on the sliding rod in a sleeving mode. The fixing plates on the head frame are matched with the fixing sleeves on the fixing frame through the fixing rods, the distance between the two fixing plates can be adjusted, and therefore the fixing size of the fixing head frame can be adjusted according to the skull of a patient, it is ensured that the head frame can be perfectly attached to the skull of the patient, and the stable and reliable fixing effect is achieved. Meanwhile, the traction assembly can move up and down along the sliding rod and can be adjusted according to the actual condition of the patient, so that the optimal traction effect is achieved.

Disclosed herein is an alternative method and device to traditional alveolar distraction osteogenesis, which typically necessitates bone destruction. This method employs a titanium rod with a screw head design connected to two peripheral protrusions. The lower protrusion anchors the device to the jawbone, while the upper protrusion supports a porous titanium plate beneath the periosteal tissue. By gradually rotating the screw head, the distance between the protrusions increases, promoting controlled, tension-free bone growth without necessitating bone destruction. This approach is advantageous where traditional methods are not feasible, such as bones affected by congenital defects, severe atrophy, or near-exposed nerve canals. The porous titanium plate acts as a scaffold, preventing periosteal tissue collapse and maintaining space for bone regeneration, while preserving the integrity of the periosteum. This innovation offers a more effective and less invasive solution for complex alveolar bone deficiencies.

1. The name of the design product: animal stretching device (special for distraction osteogenesis). 2. The use of the design product: used for installing on the bone cutting site of the lower jaw, femur and other bones of animals such as mice, rats, rabbits, etc., aligning and fixing the two bone cutting ends, and promoting large-scale new bone formation through periodic stretching. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective drawing.