35 results about "Cranium bone" patented technology

A device for rapid reattachment of a bone flap to a cranium after a surgical operation is provided. The device comprises a pin comprising an elongated shaft, an inner disk and an outer disk. At least the outer disk comprises a central bore. The pin and inner disk are adapted to be assembled together to form a pin and inner disk assembly such that the inner disk is located at one end of the pin. The outer disk is adapted to be mounted on the shaft of the pin with the shaft of the pin extending through the central bore of the outer disk. The device is operated by (i) positioning the inner disk on the inside of the cranium with the shaft of the pin extending through the kerf between the bone flap and the cranium, (ii) forcing the outer disk downwardly on the shaft of the pin toward the inner disk until the outer disk securely engages the outside of the bone flap and the cranium, such that the bone flap is securely held in place between the inner disk and the outer disk, and (iii) trimming off an excess portion of the shaft extending out beyond the outer disk.

A femoral component of a hip implant is disclosed. The femoral component may be used specifically in a neck sparing resection (i.e., any process or device that avoids removing the femoral neck) and may include a shortened stem (with respect to a conventional stem) having a terminal flare portion for internally contacting a medial calcar portion of the proximal femur, and a significant curvature on its medial side. Other features of the femoral component include, flat side portions on the anterior and posterior sides of the stem, a lateral fin or a wing or T-back to aid in resisting torsional forces. The femoral component may also include a sagittal slot for proper fitting and placement in the femoral canal. The femoral component may also include a neck component that is modular with respect to the stem component. A head component, whether monoblock or modular with respect to the neck component, may also be utilized as part of the femoral component.

Methods and systems for occipital-cervical spinal fixation. A plate configured for attachment to the occipital bone has two arms extending out from either side, which turn downwards parallel to one another. A first bend is disposed in the arms, such that the arms extend down from the occipital bone behind the spinous process of the C1 and C2 vertebrae, upon installation. A second bend in the arms allows attachment to the C2 vertebra. The system may be dimensioned for pediatric installation. A bone graft material may be held in place between the cervical vertebrae and the skull by installing a cable to the installed system to retain the bone graft material in place. Methods and kits for occipital-cervical spinal fixation are also disclosed.

Disclosed is an apparatus for providing cranial therapeutic administration of directed energy. The apparatus may include an energy emission device positionable proximate to a surface of the subject's cranium. Further, the apparatus may include multiple energy portals in communication with any of a variety of suitable sources of directed energy. The multiple energy portals are capable of emitting directed energy directed towards the subject's cranium.

The invention relates to a piston-shaped bone repairing support and application thereof. The piston-shaped bone repairing supporting consists of a support top and a support bottom, wherein thickness of the support top is between 0.5 and 1.5mm; the thickness of the support bottom is between 1 and 2mm; and the periphery of the support bottom is 1 to 3mm wider than the support top. The bone repairing support has the advantages that: when the piston-shaped bone repairing support is used for repairing defects of orbital wall and harnpan, the support material can be inserted into the position of the bone defect, and is matched excellently with a bone stump so as to facilitate the creeping and the replacement of a new bone towards the material; and meanwhile, the bone repairing support can be fixed excellently, avoids the movement of the support material, and solves the problem that materials on the positions of the orbital wall and the harnpan are difficult to fix.

The invention belongs to the technical field of medical instruments, and particularly relates to a skull milling cutter for craniotomy. The skull milling cutter comprises a shell; a first sliding holeis formed in the shell, a first drill rod is rotationally connected into the first sliding hole, and a second drill rod is slidably connected into a first hole formed in the first drill rod; a firstsliding groove is formed in the first hole, a sliding block is slidably connected into the first sliding groove, and the sliding block is fixedly connected with the first drill rod; a sliding cavity is formed in the first hole, a limiting ring is fixedly connected to the position, corresponding to the sliding cavity, of the first drill rod, and the second drill rod on the side, away from the sliding block, of the limiting ring is sleeved with a reset spring; a groove is formed in the position, corresponding to the sliding block, in the first hole, an obliquely-arranged second sliding groove isformed in the groove, and a rotating pin is connected into the second sliding groove in a sliding mode; and a second sliding hole is formed in the position, corresponding to the second sliding groove, of the second drill rod, a sliding column is slidably connected into the second sliding hole, and the end, close to the rotating pin, of the sliding column is fixedly connected with the rotating pin. Accurate positioning is achieved through the second drill rod, and the drilling accuracy of the skull milling cutter is guaranteed.

A device and method for preventing and correcting abnormal shaping of an infant's cranium by applying external forces over time with the growth of an infant to achieve normal shaping of the infant's head. The device is a cranial orthosis having a depression with a contact surface in the shape of at least a portion of a normal infantile cranium. The orthosis further provides lateral support surfaces creating points of contact to restrict rotation of the infant's cranium and provide additional external forces for normal shaping of the infant's cranium. Because the present invention is non-conforming to the shape of an abnormal skull, the exerted forces cause accelerated expansion of the skull in less prominent areas coincident with brain and skull growth.

The invention discloses a craniocerebral three-dimensional forming restoration with a muscle base window. According to the craniocerebral three-dimensional forming restoration with the muscle base window, a medical three-dimensional forming material serves as a substrate, multiple mesh holes are formed in the substrate, the craniocerebral three-dimensional forming restoration with the muscle base window is provided with a smooth outline edge, a suitable individualized muscle base window three-dimensional structure is reserved for the skull defect zone muscular tissue of a patient at the edge, close to the base of skull, of an outline, the tissue combinations such as the muscles, the meninx and the brain which are attached to a skull defect zone are located at the inner side of the craniocerebral three-dimensional forming restoration with the muscle base window, the outline radian of the craniocerebral three-dimensional forming restoration with the muscle base window are formed with the consideration of the distribution condition of the tissue combinations such as the muscles, the meninx and the brain in the skull defect zone, so that it is guaranteed that the skull and the brain are repaired and protected together, and symmetry and beauty of the skull and the brain at the two sides are considered. Compared with the prior art, the craniocerebral three-dimensional forming restoration with the muscle base window has the following advantages that the internal environments such as brain blood supply and intracranial pressure maintenance are improved and recovery of the brain functions is facilitated.

The invention discloses a progressive multi-scale craniofacial bone fracture detection method, and belongs to the technical field of craniofacial bone fracture detection. The detection method comprises the following steps: firstly, cutting a fracture data set: cutting an original image with the center point of an original label as the center and with the length and width four times of the length and width of the original label as the length and width of a new image, and then carrying out primary training on the newly labeled data set, storing a trained pre-training model, and then training the original data set on the basis of the model. A heat map label is generated according to an original data label while training original data to extract features, then a region of interest is guided in a region generation network by comparing the heat map label, and finally, a candidate frame is continuously approaching to a real frame by narrowing a detection range. Compared with similar methods, the detection method has the advantages that a skull fracture part can be effectively detected, so that the fracture detection accuracy is improved, the probability of frame leakage is reduced, and the application range and the application scene are expanded.

A cranial remodeling orthotic for passive remodeling of a cranium of an infant has (i) a main frame assembly for encircling the infant cranium (ii) at least one support member having a concave inner surface to extend circumferentially with the main frame assembly about a portion of the infant cranium while protruding beyond at least one of the upper boundary or the lower boundary of the main frame assembly, and (iii) a resilient cushion layer lining an inner surface of a portion of the main frame assembly or the support member. The support member is rigid and self-supporting, while being formable in shape upon the application of heat more readily than the main frame assembly. The resulting orthotic can be mass produced while still allowing some customization for the end user so as to effectively treat headshape asymmetry without the need for 3D scans or plaster casting.

A surgical guidance system (SGS) for performing a cruciate pivot osteotomy in canines to treat cranial cruciate ligament disease. The SGS comprises a guide, a jig, and a plate. The guide is first placed over the tibia until it interacts with specific anatomical features of the tibia, thereby marking the proper position for the jig to be placed. After the jig has been secured, a blade defines an osteotomy within a proximal portion of the tibia. A portion of the jig is then cranially rotated providing a rotational correction of the proximal tibia. A compressive force is then applied to the osteotomy by the jig. Next the multiplane locking plate is placed over the osteotomy as dictated by the features of the jig. After initially securing the plate into its correct position, the jig is removed and the plate is then secured to the cranial surface of the tibia.

The invention discloses a craniomaxillofacial state analysis method and device and electronic equipment. The analysis method comprises the steps of obtaining a soft tissue sequence image and a black bone sequence image of the head craniomaxillofacial surface of a target user, wherein the soft tissue sequence image and the black bone sequence image are magnetic resonance images MRI; determining a brain midline of the target user, and positioning a median sagittal plane of the head craniomaxillofacial surface by adopting the brain midline; and analyzing whether the head craniomaxillofacial surface of the target user has abnormal deformation or not based on the median sagittal plane. According to the method and the device, the technical problem that the comprehensive craniomaxillofacial statecannot be obtained due to the defect of large error in the determination process of the median sagittal plane of the craniomaxillofacial surface because of the irregularity of the skull in related technologies is solved.

The craniotomy surgical robot comprises a frame body with moving rollers, the frame body is connected with a craniotomy component through a mechanical arm, the craniotomy component comprises a mounting base, a drill bit and a sleeve, a displacement assembly is arranged in the sleeve and connected with the mounting base, and the mounting base is connected with the drill bit. The displacement assembly drives the mounting base to move in the direction away from the drill bit, an emergency stop mechanism is arranged in the drill bit, an emergency stop assembly matched with the emergency stop mechanism is arranged on the mounting base, the drill bit can be suddenly stopped through the arrangement of the emergency stop mechanism, and the pump body control unit is connected with the pump body control unit. And meanwhile, the mounting seat has a certain displacement function through the arrangement of the displacement assembly, so that the mounting seat can be displaced after the skull is drilled through, and a doctor can conveniently respond to the force.

The invention discloses a method for making a model by a craniomaxillofacial filling prosthesis, which comprises the following steps of: 1, carrying out three-dimensional scanning on the head of a person to be subjected to face-lifting; 2, opening a craniomaxillofacial place needing face-lifting through three-dimensional software, adding a model through the software, and carrying out preliminary confirmation with the person to be subjected to face-lifting; 3, according to three-dimensional laser scanning data and model data, performing 3D printing on a skull and a filling prosthesis through a 3D printer; 4, fixing a filled prosthesis model at the position corresponding to a skull model, allowing the medical staff to discuss with the person to be subjected to face-lifting, performing simulation demonstration, finely trimming, adjusting and cutting the filled prosthesis model; and 5, moulding to obtain the filling prosthesis . According to the filling prosthesis manufactured through the method, the probability of contradiction occurring after an operation is greatly reduced, communication between medical staff and clients is facilitated, confirmation is conducted through the filling prosthesis model, the situation that a finished product is reworked many times is avoided, cost is saved, and efficiency is improved.

The invention discloses a craniomaxillofacial state analysis method and device and electronic equipment. The analysis method comprises the steps that a target sequence image of the head craniomaxillofacial region of a target user is acquired, wherein the type of the target sequence image is a soft tissue sequence image or a black bone sequence image, and the target sequence image is a magnetic resonance image MRI; the target sequence image is synthesized into a computed tomography CT image; the target sequence image is used to locate a brain centerline of the target user; a median sagittal plane of the craniomaxillofacial surface of the head is located by adopting a brain centerline; and based on the median sagittal plane, whether the head craniomaxillofacial region of the target user hasabnormal deformation or not is analyzed. According to the method and the device, the technical problem that the comprehensive craniomaxillofacial state cannot be obtained due to the defect of large error in the determination process of the median sagittal plane of the craniomaxillofacial surface caused by the irregularity of the skull in the prior art is solved.

A spinal fixation device for securing two stabilizing rods to bone, such as the spine, pelvis or cranium, has a threaded shaft configured for fastening to bone, a first (primary) rod coupling head and a secondary rod coupling head. The threaded shaft has a longitudinal axis and the first rod coupling head is connected to the threaded shaft. The first rod coupling head has a side wall and a cavity for receiving a rod, the cavity being open toward a top of the first rod coupling head. In a neutral position of the first rod coupling head, the first rod coupling head extends symmetrically around the longitudinal axis of the threaded shaft. The second rod coupling head is rotatably connected to the first rod coupling head, around an axis of rotation. The axis of rotation is disposed at an angle that is not perpendicular to the longitudinal axis of the threaded shaft when the first rod coupling head is in the neutral position. This allows for two rods to be manipulated independently through different axis planes at any single point of bony fixation.