6 results about "Bones head" patented technology

The application discloses a preparation method of an interpenetrating phase ceramic dental material and belongs to the technical field of biomedical materials. The application is based on the porous foam structure and cavity tissue of bird skeletons for biomimetic design, two kinds of biomimetic bird bone structures combining the characteristics of annular hyoid structures and cavity tissues are established, and according to the bird skull cooperative damping mechanism, a mortise and tenon structure with the characteristics of cooperative bearing and buffering is constructed, the structure has more excellent mechanical bearing performance and deformation stability compared with a traditional structure. The zirconium oxide-hydrogel interpenetrating phase material prepared by a photo-crosslinking method, the composite design of the soft phase and the hard phase material not only significantly improves the energy absorption characteristics of the material, but also effectively improves the fracture toughness of the dental material. On this basis, a functional coating is constructed on the surface of the material by using a sol-gel dip coating process, and the problems of insufficient corrosion resistance and wear resistance of the dental material in the oral environment are further solved.

The application discloses a method for locating the wing point on the body surface based on NCCT image data and belongs to the technical field of medical image processing. The method uses the NCCT sequence data of a routine image inspection at any time to reconstruct the shape of a skull, automatically and individually identifies the eyebrow bone features through corner point detection and Kmeans mean clustering, accurately determines the outer edge points of the eyebrow bone, adopts the method that the outer edge of the eyebrow bone is pushed forward to the direction of the extension line of the eyebrow bone by a curved surface distance of 3.5 cm and the midpoint of the malar arch is pushed upward by a linear distance of 4 cm, and the wing point is automatically and quickly located, which has important clinical significance.

In a method for minimizing the effects of impact forces to the skull, a headgear may be worn to restrict blood flow from one or more of the draining veins in the neck. Pressure applying pad members movably connected to the headgear may be deployed to apply pressure against the veins of the neck.

The application discloses a design method and system of a maxillofacial defect repair implant, comprising: CT or MR scanning of a patient's head to obtain scanning data; threshold segmentation and non-skeletal part removal processing of the scanning data to obtain a binary image; partial registration of the binary image and a skull binary image template, adjustment of the pose according to the registration result, and determination of the defect type according to the registration missing part; local cutting and scaling processing of the binary image of the patient's skull according to the defect type; input of the processed image into a generation network to generate a preliminary implant design result; import of the preliminary implant design result and the original defect skull image into a mixed reality device, projection into a real space coordinate for fine adjustment and modification to obtain a correction result; transmission of the modification result into a 3D printer for production to obtain a final implant entity. The application can accurately design a suitable implant shape according to medical images of a defect site.

A bone conduction implant, including a bone fixture including a male screw section configured to screw into a skull and an abutment configured to be rigidly attached to the bone fixture, wherein the abutment includes an exterior surface diameter lying on a first plane normal to a longitudinal axis of the bone conduction implant that is less than or substantially equal to the maximum thread diameter of the male screw section of the bone fixture.

A device for stimulating a user's vestibular system is provided. The device includes: a first plurality of bone conduction transducers configured to emit vibrations to a first region of the user's skull to stimulate the vestibular system. Additionally, the device includes: a second plurality of bone conduction transducers configured to emit vibrations to a second region of the user's skull to stimulate the vestibular system. The device further includes: control circuitry configured to control the emission of vibrations from the first and second plurality of bone conduction transducers based on target directional motion perceived by the user's vestibular system.