30 results about "Frontal bone" patented technology

A head mounted display including a main strap, a display part, an adjusting mechanism, a forehead pad, a plurality of holders and a lace is provided. The main strap surrounds a user's head. The display part is connected to the main strap and corresponds to the user's eyes. The adjusting mechanism is disposed on the main strap. The forehead pad corresponds to the user's frontal bone. The holders are disposed on the main strap and the forehead pad. A path of the lace in sequence passes through a retractable portion, a portion of the main strap near a first side of the display part, a first sideof the forehead pad, a fixed portion of the lace, a second side of the forehead pad and a portion of the main strap near a second side of the display part. The adjusting mechanism connects the retractable portion and is adapted to adjust a magnitude of tension of the lace at the retractable portion. The lace is fixed at the main strap and the forehead pad by the holders.

A method of transplanting cells into a subject is disclosed. The method comprises transplanting the cells into the paranasal sinus of the subject or the subarachnoid cavity situated between the frontal bone of skull and the olfactory bulb of the subject. Devices for paranasal sinus transplantation and subarachnoid cavity transplantation are also disclosed.

The invention relates to the field of medical auxiliary equipment, in particular to a brain nerve maintenance device and control method after brain surgery. The brain nerve maintenance device after brain surgery of the present invention comprises: a shell, the shell is hemispherical, and the occipital bone support plate, the parietal bone support plate, the frontal bone support plate, the sphenoid bone support plate and the temporal bone support plate are all arranged on the In the shell; the liquid bag is set in the shell and located in the gap, the liquid bag is connected with the liquid circulation pipeline, and the liquid circulation line is connected with a heat exchanger in series; the occipital bone support plate, the parietal bone support plate, the frontal bone support plate, and the sphenoid bone support plate And at least one of the temporal bone support plate is provided with a pressure sensor; and at least one of the occipital bone support plate, the parietal bone support plate, the frontal bone support plate, the sphenoid bone support plate and the temporal bone support plate is provided with a temperature sensor; the controller, and the temperature sensor , the pressure sensor and the flow valve communication connection of the heat exchanger. Through the above setting method, the liquid sac can exchange heat with the head to realize intracranial temperature regulation.

The invention discloses a high-intensity porous bone repair material and a method for preparing the same. The method comprises the following: (1) a step of preparing a porous body, which is to use beta-tricalcium phosphate, bio-glass and a stable tetragonal zirconia power as a solid phase, add deionized water into the solid phase, add ammonium polyacrylate serving a dispersant, process the mixture by ball milling to prepare pulp, soak polyurethane foam completely into the pulp, take out the soaked foam, extrude excessive pulp out of the product so as to evenly coat the pulp on the pore walls of the porous body, dry the obtained product, place the dried product in a program control furnace or an electric resistance furnace, film the obtained product at a rising temperature and sinter the filmed product to form the porous body; (2) a step of soaking the obtained porous body in a water solution of NaOH, washing the product with deionized water in the atmosphere of ultra waves and drying the resulting product to obtain the high-intensity porous bone repair material. The high-intensity porous bone repair material of the invention has a high intensity and a high compressive strength, can be widely applied to repair skulls, frontal bones and the like and can also be used to reconstruct scaffolds of cell carriers in tissue engineering and repairing organs.

The invention discloses a brain nerve maintenance device after brain surgery, which comprises an inner protective pad, a middle air bag, an outer cooling shell and a bottom fixing ring. The inner protective pad includes a frontal bone pad, a parietal bone pad, an occipital bone pad, and a temporal bone pad. Pad and sphenoid bone pad, the frontal bone pad, parietal bone pad, occipital bone pad, temporal bone pad and sphenoid bone pad are fixedly connected by a locking fixture and form a three-layer protective structure with the middle airbag and the external cooling shell. The brain nerve maintenance device after brain surgery, by simulating the bone structure of the human brain, adopts a block structure design to make the contact between the product and the head closer, and it is easy to disassemble and assemble. Through the setting of the middle airbag, it can be used Massage and protect the skull through pressurization or decompression, and the inner protective pad is made of silicone, which can be in gentle contact with the head, thereby preventing pressure sores, protecting the brain tissue structure, and improving the safety protection ability of the product.

An orbital implant adapted for attachment to the very thin bone at the orbit rim (502), such as the zygomatic and frontal bone margin at the supero-lateral aspect (501) of the orbit (503), for the attachment of an eye prosthesis directly to distal ends of inwardly convergently orientated transdermal abutments. The orbital implant has a baseplate (100) having an orbit radius curvature and an orbit rim curvature and a plurality of microfixation apertures therethrough and the plurality of transdermal abutments are located at an inner edge of the baseplate (100).

The invention discloses a method for reconstructing an artificial bone repair model of a damaged part based on prior knowledge. First, extract the outline of the outer layer of the bone from the medical tomographic CT image, introduce the repair template and resample the contour line from the repair template according to the thickness of the fault layer; secondly, use the eigenvalue method to search for the most matching layer in the repair template The template layer and establish the alignment transformation of the two; then, obtain the isomorphic points on the template layer and the breakpoints of the layer to be repaired by the public angle method, and calculate the fitting equation between the isomorphic points, reversely substitute into the fitting equation to obtain the The point coordinates of the repair layer are interpolated; then, the inner layer contour is generated according to the given bone inner and outer layer thickness; finally, the artificial bone repair model is obtained by using VTK 3D reconstruction. The invention is applied to the actual surgical operation in which the human frontal bone, parietal bone and other parts are severely damaged, resulting in severe fracture of the skull that cannot be repaired directly, and needs to be implanted with personalized artificial bones.

The invention discloses a tokay gecko brain three-dimensional positioning device and a positioning method based on a quadrate bone and a maxillary dental top. The special concave structure of the quadrate bone in the auditory meatus of a tokay gecko is utilized by the positioning device, an ear rod end adaptive to the structure of the quadrate bone is designed, left-right leveling and centering effects in clamping the skull of the tokay gecko are ensured; and then the maxillary dental top of the tokay gecko is positioned and clamped by a maxillary support plate, so that the head of the tokay gecko is fully fixed. The positioning device comprises a left-right ear rod clamp, a tokay gecko adapter, a three-dimensional electrode moving device and the like. By the special structure design of the ear rod and the ear rod end and under the cooperation of the positioning to the maxillary dental top of the tokay gecko by the maxillary support plate, the parietal bone and the frontal bone of the tokay gecko no more rotate relatively when tokay gecko opens or closes the mouth and when the body of the tokay gecko moves drastically, so that the standard position of the brain tissue of the tokay gecko in an experiment is ensured; and the positioning device not only achieves firm and reliable positioning, but also has the characteristics of correct positioning and simple operation. The positioning method is also suitable for positioning and clamping other Gekkonidae animals.