50 results about "Human skull" patented technology

The invention comprises a surgically implantable hearing aid for hearing impaired persons. The hearing aid includes a vibrational element which is vibrated by sound waves and attached to the skull of the person, and a connector which crosses the mastoid cavity and delivers the sound waves to the dura mater of the human being thereby vibrating the dura mater, the cerebrospinal fluids, and the brain to create a hearing percept. The invention can also be adapted to act as a tinnitus masker or used in conjunction with a cochlear implant. It can also be used in a modified form to connect directly through the skull of the human being.

A bonnet-shaped pad configured to fit a skull is formed from a rectangular thermal pad. A rectangular pad has creases that allow the pad to conform to the shape of a human skull. The pad defines a cavity. The pad proximate the cavity includes a serpentine conduit configured to allow conditioned fluid to flow from an inlet to an outlet. The pad is configured such that fluid flow is not unduly restricted proximate the creases in the pad, thereby allowing the fluid to flow through the portion of the pad configured to be proximate the skull. The pad is connected to a cool water supply that pumps wool water through the pad at preselected intervals. In one configuration a remote, tethered switching unit controls the duty cycle of the pump, enabling cool water to flow through the pad after a selected time.

A multi-functional dental extra-oral x-ray imaging system includes a conventional x-ray source and manipulator to control the movement of the x-ray source by translating and rotating, a real time multiple frame producing x-ray imaging device and at least two different exposure profile programs, whereas one of such profiles produces a standard panoramic image and a second of such profiles produces an angled or transverse slice to a the panoramic image. A third exposure profile program produces a substantially linear projection of the human skull by combining two linear projections, one for the right and one for the left part of the head. The sensor is a linear direct conversion operating preferably in the frame mode and producing more than 100 fps.

The invention discloses a dynamic variable multichannel transcranial magnetic stimulation coil array and a control method thereof. The coil array comprises a group of straight leads which are arranged at equal intervals in an S direction, a group of straight leads which are arranged at equal intervals in a C direction and control units; the S direction and the C direction correspond to a sagittal axis and a coronal axis of the brain respectively, the two groups of the leads in the S direction and the C direction are crossed, perpendicular to each other and insulated with each other to form a net-shaped coil array, and an input end of each of the straight leads or an output end is connected with an independent control unit; the coil array is bent to form a spherical surface in space, the radian of the spherical surface is matched with a curved surface shape of a human skull, and the whole coil array is in a shape of a helmet and covers the whole head. According to the transcranial magnetic stimulation (TMS) coil array, a plurality of TMS coils are generated simultaneously in a range of the whole head, and the size, the strength and the method of the stimulation area can be changed; the multichannel and high- spatial resolution TMS stimulation can be achieved, and the dynamic variation of a stimulation position and a stimulation method can be achieved.

A paper-skull-model system for constructing a model of the human skull includes a plurality of elements representing various parts of the skull and adapted to be attached to each other. Each of the elements is adapted to be physically manipulated by a user of the system and has at least one marking disposed thereon. The system includes also a set of instructions to instruct the user how to physically manipulate each of the elements with respect to each marking and attach the elements together to construct the skull.

A porous bionic skull repairing material includes a polymer material, whose structure is consistent with that of a human skull. The surface layers of the porous bionic skull repairing material are dense layers which are composed of non-degradable or degradable polymer materials and has blind holes having an asymmetric structure, and the inner layer of the porous bionic skull repairing material is a loose layer which has a porous structure. The repairing material can be molded by adopting a mixed mould pressing method or a 3D printing method, simulates a bone structure, with two dense sides and a loose middle, of a human skull to the greatest extent.

Hearing losses caused by deficiencies in a person's outer or middle ear may be compensated for by converting received sounds to vibrations and transmitting the vibrations to the skull bone (2). Bone-conduction hearing devices (27) may transmit such vibrations transcutaneously or percutaneously. In both cases, a precise determination of the magnitude of the vibrations applied to the skull bone (2) is needed for determining the person's bone-conduction hearing thresholds as well as for calibrating the hearing devices (27). The present invention provides a device (1, 27, 37) and a method, which allow determination of the applied vibrational force with better precision than prior art devices and methods. This is achieved by placing an accelerometer (21) on the countermass (11) of the vibrator (1) that generates the vibration signal. The accelerometer (21) thus provides an acceleration signal representative of an acceleration of the countermass (11), from which acceleration signal the vibrational force may be determined precisely and reproducibly.

A system and method for an enhancing audio reinforcement system is claimed. The system provides a device comfortably mountable to the human head and consisting of a headband and at least one reflector that simulates a cupped hand over a listener's ear. The system is used to enhance the wearer's listening ability and pleasure by concentrating desired sounds into the ears and blocking transmission of side and background noise. The invention also is intended to contact the bony structure of the human skull and jaw line and to induce sound vibrations therein.

The adjustable airway mannequin with visual feedback models the human skull, maxilla, upper teeth, lower teeth, jaw, spine and airway mounted on a backboard. Adjustments can be made to the height of the maxilla, the height of the upper teeth, the tension and distance of the jaw movement representing mouth opening, the anterior-posterior displacement of the jaw relative to the maxilla and skull, the presence or absence of the upper teeth and lower teeth, the range of motion of the spine, and tension on the airway to mimic a variety of anatomies. The mannequin may include one or more electronic proximity and position sensors that operate through magnetic field sensing, accelerometry, and optical sensing to monitor one or more of face length, jaw length, mouth opening, jaw tension, larynx position, head height off the table, and spine mobility.

A multi-functional dental extra-oral x-ray imaging system includes a conventional x-ray source and manipulator to control the movement of the x-ray source by translating and rotating, a real time multiple frame producing x-ray imaging device and at least two different exposure profile programs, whereas one of such profiles produces a standard panoramic image and a second of such profiles produces an angled or transverse slice to a the panoramic image. A third exposure profile program produces a substantially linear projection of the human skull by combining two linear projections, one for the right and one for the left part of the head. The sensor is a linear direct conversion operating preferably in the frame mode and producing more than 100 fps.

The invention provides a bone plate for human skull defect repair and a preparing method and a using method of the bone plate. Compared with a titanium alloy net plate as the first choice for skull repair currently and clinically, the heat conductivity coefficient of the polyether-ether-ketone high polymer material bone plate is low, and the phenomenon of the encephalic discomfort generated by thesensitivity to temperature change after a patient adopts the titanium alloy net plate for repair is avoided. According to a skull defect part CT scanning picture of the patient, after the shape and the size of the defect part are determined, by individually designing processing and preparing, embedded installation and fixation are adopted by an operation, the preoperative cutting and shaping process of the repair of the titanium alloy net plate is replaced, it is avoided that the scalp is injured accidentally since the cutting edge of the titanium net plate is sharp, postoperatively, the outward leakage of cerebrospinal fluid and even a complication of infection caused when the sharp titanium net plate scratches the scalp are thoroughly removed, an artifact existing under an image by theadoption of the titanium alloy net plate for repair is also removed, and the influence of the artifact on later diagnosis and judgment of the state of illness clinically is effectively avoided.

A method for measuring the threshold value of human nerve includes opening human skull, applying electric stimualting signal to the nerve to be measured, measuring the electromyographic signal of the muscle controlled by said nerve, and finding out the threshold value and relative parameters. Its system is composed of a nerve threshold stimulator, a digital electromyograph and a computer.

The invention provides a human skull repairing scaffold which comprises a skull plate formed by a biodegradable polymer and bone growth factors adhered to the surface of the skull plate. The invention also provides a preparation method of the human skull repairing scaffold. After the human skull repairing scaffold provided by the invention is implanted into a human body, the self skull of a patient grows along the surface of the skull plate under the promotion of the bone growth factors, so that the skull injury part heals; because the self skull grows along the surface of the skull plate, the shape of the grown skull coincides with the shape of the original skull, so that malformation and other phenomena are not generated; and in addition, because the skull plate is formed by the biodegradable polymer, after the self skull grows to obtain a complete skull, the skull plate is slowly degraded and discharged out through human body absorption, metabolism and other means, so that the repaired skull injury part is completely formed by the growth of the self skull, no any other foreign bodies are left in the human body, and no any adverse effects are caused to the patient.

A novelty trailer hitch attachment for vehicle personalization and decorative purposes, comprising an illuminated character attached to a trailer hitch receiver tube and mateably inserted into a trailer hitch socket. The illuminated character may include a human skull likeness, adorned with a sports helmet for a particular sports team or organization. Likewise, the character may include a team or school mascot likeness with similar illumination means. The character receives electrical power via a trailer brake light connector, which provides light via embedded Light Emitting Diodes (LEDs) within the character's structure, projected through the eyes of the character when the vehicle brake pedal is depressed. The present invention provides a novelty trailer hitch item for displaying affiliation or support for a particular sports team or for further accessorizing a vehicle exterior.

The invention relates to a craniofacial interactive restoration method of ancient human skull based on modern human soft tissue distribution, in particular comprising the following steps: step 1, geometric restoration of ancient human skull; 2, registration of that ancient human skull and the modern human skull; 3, craniofacial restoration of the soft tissue distribution based on the reference model; 4, construct a candidate data set of that craniofacial restoration result; Step 5, craniofacial interactive restoration based on statistical shape model. The invention has the beneficial effects of improving the accuracy of the craniofacial restoration method based on skull registration; To improve the accuracy of craniofacial reconstruction of ancient human skull; To improve the accuracy of craniofacial reconstruction.

The present invention relates to Bluetooth bone conduction headphones capable of performing wireless data communication and having auxiliary vibration ear rings for reducing the loss of vibrations transmitted to the human skull as well as for reducing noise from an external source. The bone conduction headphones of the present invention consist of a novel type of headphones comprising main vibration housings which are brought into contact with the temples of a user, and auxiliary vibration ear rings directly inserted into the ears of the user, thereby inducing lost vibrations from the main vibration housings into the ears, and thus fully transmitting sound through bone conduction to improve the listening ability of the user.; The bone conduction headphones of the present invention closes the earholes by means of the auxiliary vibration ear rings connected to the main vibration housings, thereby effectively reducing noise from an external source, and thus further improving the listening ability of the user.

The invention relates to an electromagnetic type bone conduction telephone receiver which comprises a shell (1) and a cover (2); a lower pole shoe (3) is fixed in the shell (1) and is provided with magnetic steel (4) and a coil (5); an upper pole shoe (6) is fixed on a vibration sheet (7) and arranged above the magnetic steel (4); and the vibration sheet (7) is fixed on the shell (1). In the invention, the sound can be conducted by using the property that human bones can conduct sound to conduct sound; when in use, the telephone receiver is put on cheekbones in front of ears so that the wholeears can be exposed to an environmental sound field; and sound signals sent by communication equipment are converted by the telephone receiver into mechanical vibration signals which are directly transmitted into human skulls, and then to cochlea and finally to human brains; in such a way, human eardrums are directly exposed to the environmental sound field and receive information transmitted by air vibration at all times, while communication information is transmitted by the skulls, thereby achieving the transmission of both the environmental information and the communication information.

The invention provides a piezoceramic bone-conduction oscillator mounting structure in a bone-conduction Bluetooth headset. One side of a piezoceramic oscillator is fixed on a battery or PCB printed circuit board of the Bluetooth headset, the other side is covered with a soft cushion layer, a soft rubber mat layer is added in the middle, a rectangular hole is designed in the headset case cover, and the soft cushion protrudes out of the headset case cover through the rectangular hole and contacts directly with a human skull. The piezoceramic bone-conduction oscillator mounting structure is convenient to mount, small in occupied area and good in oscillation transmission effect, and can improve the oscillation sensitivity of the oscillator, reduce sound leakage of the bone-conduction oscillator and improve the low frequency effect.

The invention relates to a sound acquisition and analysis system for a hearing aid. The sound acquisition and analysis system for the hearing aid comprises a hearing aid, a magnetic implant, sound acquisition equipment and a processing and analysis system; the magnetic implant is implanted in the skin outside a human skull; the hearing aid is connected with the magnetic implant through the sound acquisition equipment; an electromagnetic bone conduction oscillator is arranged in the hearing aid; a magnetic gasket is arranged at the lower side of the hearing aid; the electromagnetic bone conduction oscillator is connected with the magnetic gasket outside the hearing aid through a conduction metal sheet; the sound acquisition equipment comprises a shell; a sound sensor is built in the shell; the sound sensor is in communication connection with the processing and analysis system; an upper magnetic end magnetically connected with the magnetic gasket is arranged at the upper end of the shell; and a lower magnetic end magnetically connected with the magnetic gasket is arranged at the lower end of the shell. By means of the sound acquisition and analysis system for the hearing aid disclosed by the invention, the sound acquisition equipment acquires sound transmitted through the magnetic gasket from the hearing aid, and converts the sound into electric signals; therefore, the output condition of the bone conduction hearing aid is measured in real time; the signals are output into the processing and analysis system, so that real-time processing and analysis are carried out; and thus, sound signals transmitting into the skull of a patient are evaluated.

A method and apparatus for determining a three-dimensional orientation of a human head. The method includes first interposing a left and a right anthropological baselines on a patient's face, each anthropological baseline connecting an orbitale point and an auricular point on a corresponding side of the patient's face. A headgear unit having a pair of temple elements and a front housing rotatably attached to the temple elements, where the front housing includes at least two cameras and a 3D compass all movable within the front housing, is then positioned on a patient's head. Each of the two cameras is adjusted such that its view field picks up one of the two anthropological baselines on the patient's face. These view fields of the two cameras are then used to construct a Human Skull Base Plane as a plane formed by the left and right anthropological baselines when these anthropological baselines are parallel and aligned. The 3D compass is then positioned into a measuring plane coinciding with the Human Skull Base Plane, and is used to quantitatively measure a three-dimensional orientation of the patient's head at the time when the 3D compass is positioned within the measuring plane coinciding with the constructed Human Skull Base Plane.

The invention belongs to the field of biomechanics, and particularly relates to an experimental device for performing multi-type, angle and force collision on human skull and maxillofacial bone. The experimental device comprises a pendulum impact device, a replaceable rammer, an impact force and acceleration measuring system and a multi-angle height adjusting model mounting platform. The inventionaims to realize an impact test of human skull and maxillofacial bone under different conditions. According to the experimental device, a scale spherical hinge and a height adjusting chute are additionally arranged on the model mounting platform, so that multidirectional accurate adjustment of a model is realized; the detachable rammer is adopted, so that the collision conditions of different sizes, shapes and materials are realized; and an impact force sensor and an acceleration sensor are additionally arranged, so that the acceleration and the impact force are obtained in an experiment. Theexperimental device provides more accurate and comprehensive experimental conditions for researching the damage form, tolerance limit, function damage degree and protective measures of the human skulland maxillofacial bone. Meanwhile, an experimental system can be applied to more fields not limited to biomechanics.

The invention discloses an alarm clock type pillow. The alarm clock type pillow comprises a pillow body, a wifi module, a timing device, a controller, a ringing device and a bone conduction type loudspeaker, wherein the face, facing the human neck, of the pillow body is provided with a protrusion, the shape of the protrusion is matched with the curve of the human nape, the inside of the protrusion is provided with a cavity, the side face of the side, facing the human shoulder, of the pillow body is provided with a groove, and the shape of the groove is matched with that of the human shoulder; the wifi module, the timing device, the controller and the ringing device are all arranged in the cavity; the bone conduction type loudspeaker is in a circular shape and is embedded into the face, facing the human skull, of the pillow body. According to the alarm clock type pillow, the bone conduction type loudspeaker can prevent the influence of ringing bells on other people, and can make a user hear the ringing bells at the same time.

The invention relates to a suspension cultivation method of human cranial mesenchymal stem cell-derived neuron-like cells. The suspension cultivation method comprises the following steps: extracting mesenchymal stem cells by taking human skull fragments or scraps as tissue sources, performing cultivation and incubation, and inoculating to induced liquid by the density of 10<4> to 10<6> pieces / cm<2>; heating a finished product gellan gum to more than 90 DEG C and preparing a solution with the mass percentage ratio of 1 to 3 percent for later use; observing the density and the pore diameter of anetwork structure in suspending gel prepared from a gellan gum solution with different concentration by an electron microscope or a laser scanning confocal microscope; and transferring the selected neural stem cells into a suspending gel-DMEM culture medium to complete cultivation and proliferation. The suspension cultivation method has the following beneficial effects: by the method, the technical defects of the existing laboratory condition and the restriction of objective factors such as gravity are remedied; the biological behavior and the functional morphological characteristic of the neural stem cells are combined; and the suspending gel-DMEM culture medium which is prepared from the gellan gum subjected to modification treatment can effectively induce to differentiate human cranialmesenchymal stem cells.

The invention provides a skull counter virtual scale calibration method which comprises the following steps: (1) establishing a Chinese reference human skull digital model according to a Chinese adultmale reference voxel model; (2) performing virtual representation on the detector, and establishing a detector model with a fine structure; (3) reconstructing a coordinate system of an irradiation scene, and uniformly distributing radionuclides on the inner and outer surfaces of the forebone and the overhead bone; (4) setting a particle transport process in Geant4, and establishing a Monte Carlosimulation process; and (5) simulating and calculating the detection efficiency, and carrying out virtual scale calibration. The skull counter virtual scale calibration method provided by the invention does not need a simulation skull model containing a radioactive source to carry out experimental measurement calibration, but directly calculates a calibration coefficient by utilizing a Monte Carlomethod through establishing a virtual experimental scene, so that the virtual calibration scale of the skull counter can be quickly and accurately realized.

The adjustable airway mannequin with visual feedback models the human skull, maxilla, upper teeth, lower teeth, jaw, spine and airway mounted on a backboard. Adjustments can be made to the height of the maxilla, the height of the upper teeth, the tension and distance of the jaw movement representing mouth opening, the anterior-posterior displacement of the jaw relative to the maxilla and skull, the presence or absence of the upper teeth and lower teeth, the range of motion of the spine, and tension on the airway to mimic a variety of anatomies. The mannequin may include one or more electronic proximity and position sensors that operate through magnetic field sensing, accelerometry, and optical sensing to monitor one or more of face length, jaw length, mouth opening, jaw tension, larynx position, head height off the table, and spine mobility.

The invention discloses a dynamic variable multichannel transcranial magnetic stimulation coil array and a control method thereof. The coil array comprises a group of straight leads which are arranged at equal intervals in an S direction, a group of straight leads which are arranged at equal intervals in a C direction and control units; the S direction and the C direction correspond to a sagittal axis and a coronal axis of the brain respectively, the two groups of the leads in the S direction and the C direction are crossed, perpendicular to each other and insulated with each other to form a net-shaped coil array, and an input end of each of the straight leads or an output end is connected with an independent control unit; the coil array is bent to form a spherical surface in space, the radian of the spherical surface is matched with a curved surface shape of a human skull, and the whole coil array is in a shape of a helmet and covers the whole head. According to the transcranial magnetic stimulation (TMS) coil array, a plurality of TMS coils are generated simultaneously in a range of the whole head, and the size, the strength and the method of the stimulation area can be changed; the multichannel and high- spatial resolution TMS stimulation can be achieved, and the dynamic variation of a stimulation position and a stimulation method can be achieved.