41 results about "Cranium bone" patented technology

The invention is directed to methods of making novel porous and solid polyvinyl alcohol hydrogels. These hydrogels are particularly suited for use in the replacement and augmentation of soft tissue or non-load bearing bone of the face, head and cranium.

Methods and devices for fixing a defect in a vertebral disc of a patient. One method includes inserting a guide wire into a disc using an anterior approach to create a path. At least a portion of the herniated nucleus pulposus is removed. A disc reconstruction device is then advanced into the disc and fastened to the disc or at least one of the surrounding vertebrae. Alternatively, a passage could be formed in the cranial or caudal vertebra using an angled anterior approach that terminates in a region of the disc containing the herniated nucleus pulposus. At least a portion of the herniated nucleus pulposus is removed. A disc reconstruction device that has a bone in-growth component and a soft tissue in-growth component is then implanted in the passage. Devices having bone and soft tissue in-growth components and having a flexible spine with a plurality of ribs are also described.

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.

A protective helmet, particularly for sports and work use, comprising a rigid outer shell which itself comprises a front cap (2) having a concavity able to cover at least the upper part of the cranium, and a rear cap (3) having a concavity able to cover the rear part of the cranium. Said caps (2, 3) are mutually movable, the rear cap (3) being connected to the front cap (2) in such a manner as to rotate relative to this latter about an axis (A) transverse to the vertical plane of symmetry of the cranium, between a raised position and a lowered position.

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 present disclosure is for a device for filling the gap (kerf) left in the repair of a craniotomy and the methods for using and manufacturing such a device. The kerf device may be a preparation of demineralized or partially demineralized bone or bone substitute formed into a malleable strip that can be pressed or molded into the opening in between the skull and bone flap in order to allow bone healing without a gap or indentation.

The present invention relates to a method for manufacturing an implantable prosthesis, in other words, a biomodel, which can be implanted in a patient, preferably in the cranium of a patient. The method is based on the use of commercially available adhesive tape, in order to reduce the manufacturing costs of said implant since there is no need to heat same to very high temperatures in order to mold the material to be implanted. The implant is preferably made of titanium via a cold-production process, which requires initially supplying a rapid prototype from a CAD model that corresponds to a plastic mold, which is covered with commercially available adhesive tape, in order to obtain another model that makes it possible to form the model that will be transferred to titanium, thus reducing the ideal temperature for molding same.

An emergency trauma stretch bandage cap shaped as a skull cap with roll able edges capable of holding hot or cold packs, which is placed on the cranium to cover the crown, forehead, back of the head, ears, sides of the head around the ears, and the temples of an injured patient with minimal movement of the neck and spine made of two or more layers of a stretchable warp knit fabric cut and sewn to form a form-fitting head bandage shape to apply sufficient pressure to suppress bleeding.

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 relates to a bone tractor, in particular to an adjustable mid-face bone tractor and a design method thereof. The bone tractor comprises a bracket, a cranial bone fixing pin, a traction titanium pin and a traction fiber at least. The invention is characterized in that the bracket is formed in a way that a cambered connection frame with clamping grooves is fixedly connected with adjustable connection rods by removable connection parts; the middle part of the cambered connection frame is fixedly connected with a bracket connection block by removable connection parts; and one or more than one adjustable connection rods can be fixed on the cambered connection frame as required, the adjustable connecting rods are connected with traction screw rods and traction nuts, and the traction of the mid-face bones of a patient is completed by the traction fiber. By adjusting the antero-posterior position of the traction fiber, the invention can meet the requirements for the multi-point, multi-direction and force-adjustable traction of the mid-face bones in such treatment, thereby achieving the optimum treatment effect of reconstructing the face.

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 relates to a medical computed tomography imaging apparatus which is especially designed to enable cranial imaging. The structure of the apparatus includes a gantry (2) comprising imaging means (21, 22) and a positioning support (8) which positioning support (8) is arranged to position the patient's cranium for exposure such that, when exposed, the cranium is scanned by a radiation beam substantially parallel with a plane formed by the facial area of the cranium and substantially only in an area on the facial side of the cranium.

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 method for single-stage cranioplasty reconstruction includes prefabricating a clear craniofacial implant, creating a cranial, craniofacial, and / or facial defect, positioning the clear craniofacial implant over the cranial, craniofacial, and / or facial defect, tracing cut lines on the clear craniofacial implant as it lies over the cranial, craniofacial, and / or facial defect, cutting the prefabricated clear custom craniofacial implant along the hand-marked lines for optimal fit of the clear implant within the cranial, craniofacial, and / or facial defect, and attaching the final clear craniofacial implant to the cranial, craniofacial, and / or facial defect with standard fixation methods of today.

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.

An adjustable cranioplasty plate assembly is provided for use following a craniectomy. The assembly includes a ring which is attached to the skull around the skull opening and a plate adjustably mounted to the ring. The plate is moveable between a raised position spaced above the ring and a lower position substantially flush with the ring. The plurality of extendable and retractable struts extends between the ring and the plate to provide the plate adjustability. The plurality of stay cables extending between the ring and the plate provide lateral stability in the raised position. The assembly replaces the native bone and eliminates the need for subsequent cranioplasty surgery. In one embodiment, the plate includes a rigid central portion, three rigid mounting tabs, and a plurality of malleable tapered perimeter petals which provide a smooth interface between the plate and the skull of the patient.

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.

A system and method are disclosed for providing a ventilated orthotic cranioplasty helmet for treating positional plagiocephaly in infants. Specifically, a system and method are disclosed in which patient-specific parameters such as head size, patient age, degree of patient sweating, diameter of patient's hair, average length of patient's hair, and sweat range are input into a computer implemented algorithm along with a user-proposed ventilation hole array to determine an optimal ventilation hole arrangement. The computer may be connected either directly or indirectly to an automated hole drilling machine to drill the hole array in the specified portion of the helmet. The same computer implemented algorithm can be used to revise the ventilation hole array to accommodate changes in patient physiology during treatment to thereby achieve an optimal ventilation hole design throughout the treatment process.

An adjustable cranioplasty plate assembly is provided for use following a craniectomy. The assembly includes a ring which is attached to the skull around the skull opening and a plate adjustably mounted to the ring. The plate is moveable between a raised position spaced above the ring and a lower position substantially flush with the ring. The plurality of extendable and retractable struts extends between the ring and the plate to provide the plate adjustability. The plurality of stay cables extending between the ring and the plate provide lateral stability in the raised position. The assembly replaces the native bone and eliminates the need for subsequent cranioplasty surgery. In one embodiment, the plate includes a rigid central portion, three rigid mounting tabs, and a plurality of malleable tapered perimeter petals which provide a smooth interface between the plate and the skull of the patient.

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 invention discloses a craniomaxillofacial state analysis method, device and electronic equipment. Wherein, the analysis method includes: obtaining a target sequence image of the head of the target user, 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; Image synthesis of computed tomography CT images; use the target sequence image to locate the target user's brain midline; use the brain midline to locate the midsagittal plane of the craniomaxillofacial head; based on the midsagittal plane, analyze whether the target user's head craniomaxillofacial Abnormal deformation occurs. The present invention solves the defect in the related art that there is a large error in the process of determining the median sagittal plane of the craniomaxillofacial plane due to the irregularity of the skull, resulting in the technical problem that it is impossible to obtain a comprehensive craniomaxillofacial state.