40 results about "Temporal bone part" patented technology

The group of inventions relates to medical technology, and more particularly to means for dynamic virtual articulation. One of the inventions is a method for using a dynamic virtual articulator for simulating occlusion during a change in the initial position of the lower jaw or fragments thereof, and for modeling the position of the teeth in relation to one another and the position and shape of false teeth, said method being carried out with the aid of a computer. The method includes the following steps: providing a virtual articulator comprising a virtual three-dimensional model of the upperjaw and dental arch and a virtual three-dimensional model of the lower jaw and dental arch, resembling the upper jaw and upper teeth and the lower jaw and lower teeth, respectively, of the patient; and providing simulated movements of the virtual upper jaw and the virtual lower jaw in relation to one another for simulating dynamic occlusion, during which penetrating and non-penetrating contact mayoccur between teeth in the virtual upper and virtual lower jaw. Providing the virtual articulator further includes providing virtual three-dimensional models of the temporomandibular joints, resembling the heads of the lower jaw, the mandibular fossae, and the articular tubercles of the temporal bones, and carrying out simulated movements of the jaws in relation to one another is preceded by clinically or virtually setting initial and final positions. Furthermore, the virtual surfaces of the heads of the lower jaw and the virtual surfaces of the articular tubercles and the mandibular fossae of the temporal bones of the patient are disengaged. A second invention is a non-volatile machine-readable medium with a stored code containing instructions which, when executed, allow the proposed method to be carried out. The group of inventions makes it possible to provide a virtual articulator that simulates as closely as possible the actual processes occurring in the patient's mouth.

The invention relates to a method for detecting and displaying the movement of a temporomandibular joint (4) which connects a lower jaw (2) and an upper jaw (5) by means of magnetic resonance imaging.A marker (1) is secured to the lower jaw (2), a marker movement curve (7) is generated using magnetic resonance imaging measurement data sets (6) during a first measurement interval (T1), during which the lower jaw (2) is moved relative to the upper jaw (5), and a point which corresponds to a first position (P1) of the lower jaw (4) relative to the upper jaw (5) is ascertained on the movement curve. An image data set (8) is generated during a second measurement interval (T2), during which the temporomandibular joint (4) is not moved, and a first model (50), which represents at least one partof the upper jaw and / or a temporal bone part that comprises the temporomandibular joint socket, and a second model (20), which represents at least one part of the lower jaw, are ascertained therefrom.A movement curve of the second model (20, 20') relative to the first model (50) is calculated and displayed using the marker movement curve (7).

An apparatus for patient-specific adjusting of ultrasound output pressure includes a controller (118) configured for adjusting, based on an estimate of thickness of a temporal bone (140) in a head of a medical treatment recipient, a pressure setting. It may also be based on treatment depth (134). Ultrasound at the adjusted pressure setting is applied. A user interface may be provided for user entry of the estimate, the user interface being further configured for user indication of the treatment depth. Both the entered estimate and the indicated treatment depth may be used in calculating ultrasound attenuation (148). The user indication can be interactive by virtue of designating, on a display, a location of a treatment target. The calculated attenuation may be a value, in decibels, that is in a range from 0.9×(2.70×0.1+16.60×T+0.87×(D−T−0.1)+3.02) to 1.1×(2.70×0.1+16.60×T+0.87×(D−T−0.1)+3.02), where T is the estimate in centimeters and D is the treatment depth in centimeters.

The invention relates to the field of medical auxiliary instruments, in particular to a brain nerve maintenance device after a brain operation and a control method. The brain nerve maintenance deviceafter the brain operation comprises a hemispherical shell, the shell is hemisphericalan, and an occipital bone supporting plate, a parietal bone supporting plate, a forebone supporting plate, a butterfly bone supporting plate and a temporal bone supporting plate are all arranged in the shell through telescopic connecting structures; a liquid bag is arranged in the shell and located in a gap, the liquid bag communicates with a liquid circulating pipeline, and the liquid circulating pipeline is connected with a heat exchanger in series; at least one of the occipital bone supporting plate, the parietal bone supporting plate, the forebone supporting plate, the butterfly bone supporting plate and the temporal bone supporting plate is provided with a pressure sensor; at least one of the occipital bone supporting plate, the parietal bone supporting plate, the forebone supporting plate, the butterfly bone supporting plate and the temporal bone supporting plate is provided with a temperature sensor; and s controller is in communication connection with the temperature sensor, the pressure sensor and a flow valve of the heat exchanger. According to the device and the method, by means of the arrangement mode, the liquid bag can exchange heat with a head, and intracranial temperature adjustment is achieved.

The invention relates to a method for manufacturing a head hierarchical dissection three-dimensional scanning specimen. The method comprises the following steps: selecting materials; sequentially removing skin, superficial fascia, latissimus jugular muscle, parotid gland, superficial vascular nerve, cap aponeurosis, masseter, periosteum and temporal muscle, opening zygomatic arch and mandible, removing sternoclavicular mastoid muscle, parietal bone of cranial top, frontal bone, temporal bone and occipital bone, cutting to open superior sagittal sinus, removing dura mater, brain, mandible, zygomatic major muscle, zygomatic minor muscle, orbiculus oculi muscle, trapezius muscle, capsid muscle, diabdominal muscle, deorbital horn muscle cheekbone, endocranium, and veins, removing styloid process tongue bone muscles, external rectus, arteries, styloid process pharynx muscles and styloid process tongue muscles, removing auricles, opening temporal bones, and performing median sagittal incision; then, trimming and cleaning the dissected specimen, and pasting specimen muscles, blood vessels and nerves to the original corresponding positions; and finally, combining and processing the 3D scanned images into a complete digital 3D model, so that the scanned specimen is complete in shape and structure, free switching can be realized, and observation and learning are facilitated.

The invention relates to the technical field of manipulators, in particular to an automatic powder drilling device applied to temporal bones, and in the device, a drilling station is arranged on a workbench; a feeding mechanical arm is installed on the workbench and used for grabbing a sample to be machined and moving the sample to the drilling station, a drilling unit is fixedly installed in the drilling station, in the drilling unit, a rack is fixedly installed in the drilling station, an automatic clamping module is installed at the bottom of the rack in a sliding mode, and a temporal bone clamping position is arranged on the automatic clamping module and the automatic clamping module is used for clamping a to-be-processed sample fed by the feeding manipulator; an automatic powder drilling module is slidably mounted at the top of the rack, wherein the automatic clamping module and the automatic powder drilling module can move relatively; an automatic collecting module comprises a collecting vessel and a collecting manipulator, the collecting vessel and the collecting manipulator are both installed on the rack, and the collecting vessel is located below the temporal bone clamping position and used for collecting drilling powder; and the collecting manipulator is used for grabbing the collecting vessel so as to fill the powder collected in the collecting vessel.

The present invention is to provide a head relaxing pillow, which is made of an elastic material and includes a supporting main body having a top for supporting the neck of a user who lies face up and a bottom concavely provided with a recess, two contact portions each having one end connected to one of the two corresponding ends of the supporting main body and the other end corresponding in configuration to one of the user's parietal bones, and a pressing portion extending from one side of the supporting main body and located between the contact portions. The supporting main body is provided with two sunken portions which are adjacent to two corresponding ends thereof respectively. Thus, when the user's neck and head are resting on the supporting main body and the contact portions respectively, the two sunken portions are corresponding in position to the user's temporal bones respectively.

The invention provides a temporomandibular joint movement reconstruction method and a system thereof. The method is characterized by collecting an image sequence of a mark point track of open and close mouth mandible movements of a photographed person; determining three-dimensional coordinates of all the mark points on an intraoral fixed mark device in each frame of image, acquiring a movement track of each mark point in a space, and collecting a CBCT image of the intraoral fixed mark device and collecting a CBCT image of the photographed person; registering the mark point of the CBCT image of the intraoral fixed mark device with the mark point acquired by a camera through photographing, and acquiring a transformation matrix of a mark point movement; and using the transformation matrix to carry out rigid body transformation on the CBCT image of the photographed person, acquiring a CBCT image sequence of the photographed person and acquiring a temporomandibular movement image. In the invention, real movement conditions of mandible condyle process and a temporal bone joint surface of a human-body temporomandibular joint can be acquired, the method and the system can be used for auxiliary diagnosis of a temporomandibular joint disease and dynamic analysis of joint motion, temporomandibular joint diagnosis means are increased, doctor diagnosis accuracy and efficiency can be increased, and medical quality and efficiency can be increased too.

The invention relates to a method for detecting and displaying movements of a temporomandibular joint (4), which connects the lower jaw (2) and the upper jaw (5), by means of magnetic resonance imaging. A marker (1) is fixed to the jaw (2), a marker movement curve (7) is generated using a magnetic resonance imaging measurement dataset (6) during a first measurement interval (T1) during which the The lower jaw (2) is moved relative to the upper jaw (5), and a point on the movement curve corresponding to a first position (P1) of the lower jaw (4) relative to the upper jaw (5) is identified. The image data set (8) is generated during a second measurement interval (T2) during which the temporomandibular joint (4) does not move and from which the first model (50) and the second A model (20), said first model representing at least a portion of said upper jaw and / or a temporal bone portion comprising a temporomandibular joint fossa, said second model representing at least a portion of said lower jaw. A movement curve of the second model (20, 20') relative to the first model (50) is calculated and displayed using the marker movement curve (7).

The invention discloses a helmet stabilizing device for emergency rescue and fire fighting. The structure comprises goggles, a protective ring, a linkage box, a stabilizing device, and a connecting plate. The goggles are vertically installed inside the stabilizing device through a connecting shaft, and the protective ring It has an integrated structure with the stabilizing device. There are two linkage boxes and they are horizontally installed on the left and right sides of the stabilizing device. The present invention pushes the engaging anti-pressure plate to move through the connecting tube to stabilize the structure of the top of the helmet and through the engaging anti-pressure The pressing plate moves and pulls the zipper belt to drag the ball, and squeezes the zigzag slide plate through the ball, so that the zigzagging slide plate pushes the positioning structural plate to position the occipital bone, and the cushion plate to position the parietal bone, stabilizing the positioning of the push plate to the temporal bone Position the occipital bone with the positioning structural plate, so that the main stress points of the skull fit the helmet, ensure the stability of the internal structure of the helmet, and protect the head from damage to the helmet and head injury due to the unstable structure of the helmet.

An apparatus for patient-specific adjusting of ultrasound output pressure includes a controller (118) configured for adjusting, based on an estimate of thickness of a temporal bone (140) in a head of a medical treatment recipient, a pressure setting. It may also be based on treatment depth (134). Ultrasound at the adjusted pressure setting is applied. A user interface may be provided for user entry of the estimate, the user interface being further configured for user indication of the treatment depth. Both the entered estimate and the indicated treatment depth may be used in calculating ultrasound attenuation (148). The user indication can be interactive by virtue of designating, on a display, a location of a treatment target. The calculated attenuation may be a value, in decibels, that is in a range from 0.9×(2.70×0.1+16.60×T+0.87×(D−T−0.1)+3.02) to 1.1×(2.70×0.1+16.60×T+0.87×(D−T−0.1)+3.02), where T is the estimate in centimeters and D is the treatment depth in centimeters.

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 belongs to the technical field of medical image processing, in particular to a method for segmenting left and right ear regions based on temporal bone CT plain scan images. This algorithm is used to segment the left and right ear regions in the temporal bone CT image of the head, so that the computer can perform subsequent processing on the ear regions intensively. The present invention comprises the following steps in sequence: removing the invalid area of ​​the head CT image; cutting out the left and right ear areas in the image according to the proportion; respectively arranging and storing the images of the left and right ear areas. Experimental results show that, for plain-scanned temporal bone CT images, this method can remove invalid black regions, discard information of other irrelevant parts, and accurately extract left and right ear regions.

Exemplary embodiments of the present disclosure are directed towards an implantable device for complete replacement of temporomandibular joint comprising of a condyle component to reconstruct a mandibular end of the temporomandibular joint designed for movement within the implantable device with a plate; and a condyle surface where the plate is configured to mechanically secure the condyle component to a ramus surface of a patient undergoing implant with the aid of screws; and the condyle surface polished to generate a mirror effect to reduce the friction in the implantable device and infection rate; a zygomatic arch component to reconstruct a temporal bone (glenoid fossa) of the temporomandibular joint comprising at least one of: a plate; a plurality of multiple threaded counter sink holes; a plurality of conically tapered holes and a zygomatic arch surface, whereby the multiple threaded counter sink holes are structured within the plate; and a fossa component configured to be positioned between the condyle component and the zygomatic arch component to anchor the movement of the temporomandibular joint and the fossa component comprising of a low density biocompatible material made of a polycarbonate which is utilized in the additive manufacturing for the synthesis of implantable device for temporomandibular joint.

The diagnosed soft tissue or brain injury component of concussions is generally defined by the symptoms of the temporal lobe manifestations. However, there is an undiagnosed structural fractured component of concussions occurring within the jaw joint complex which is the focus of this invention. A precise imaging technique and the powerful 3D Cone beam scanning technology, together, have revealed fractures in temporal bones of the jaw joint space which supports the temporal lobe of the brain. These fractures are the results of the lower jaw impact forces that cause concussions and this mechanism account for a large percent of the concussions arising in sports and military operations. These fractures have never been considered, diagnosed, or treated in the management of concussions. Fracturing temporal bones in the jaw joint that supports the temporal lobe will certainly produce the symptoms of temporal lobe manifestations. With early detection, these fractures can be more rapidly healed, eliminating many temporal lobe symptoms of concussions. The device of the present invention reduces the risk of the lower jaw impact concussion and temporal bone fractures, while enhancing the ability to speak and orally communicate.

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.

The invention discloses a temporal bone model for surgery training and a forming method thereof, which belong to the technical field of ear surgery training aids. The temporal bone model for surgery training comprises a cortical bone, a cancellous bone, a semicircular canal, an ear bone and a face neural tube, wherein the cancellous bone is of a porous structure; the semicircular canal and the face neural tube are of cavity structures; the ear bone is of a solid structure; the semicircular canal, the ear bone and the face neural tube are integrally formed by adopting aluminum oxide ceramics through 3D (Three-dimensional) printing; the cancellous bone is prepared from three raw materials: mixed powder, water and graphite powder; the mixed powder is prepared from mixing 85 percent by weightof clay and 15 percent by weight of feldspar powder; the cortical bone is prepared from two raw materials: mixed powder and water. The invention provides the temporal bone model for surgery training and the forming method thereof. The temporal bone model for surgery training is higher in biofidelity, lower in manufacturing cost, and capable of greatly improving a surgery training effect, shortening a doctor training period, reducing doctor training cost, and benefitting patients.

The present application discloses a temporal bone spatial data processing and positioning method, device and electronic equipment. Wherein, the processing method includes: based on the first image containing the bone canal structures of the bilateral lateral semicircular canals, determining a reference plane between the bone canal structures of the bilateral lateral semicircular canals; Symmetric feature points; determine the origin of coordinates and the median sagittal plane according to the corresponding symmetrical feature points of the bilateral lateral semicircular canal bony canal structures; use the voxel point information corresponding to the bilateral lateral semicircular canal bony canal structures in the first image to determine the transverse axis plane ; Determine the coronal plane according to the transverse axis plane and the median sagittal plane; establish the temporal bone spatial coordinate system based on the coordinate origin, the median sagittal plane, the transverse axis plane and the coronal plane. After the user triggers a calibration request for a point in an image, the embodiment provided by this application can automatically determine and display the coordinate value of the point using the temporal bone space coordinate system, providing a good foundation for subsequent medical research.

This application relates to the technical field of manipulators, and specifically provides an automatic drilling powder device applied to temporal bones. In the device, a drilling station is provided on the workbench; sample and move to the drilling station, the drilling unit is fixedly installed on the drilling station, in the drilling unit, the frame is fixedly installed on the drilling station, the automatic clamping module is slidably installed on the bottom of the frame, and the automatic clamping module There is a temporal bone clamping position on the module, which is used to clamp the sample to be processed sent by the feeding manipulator; the automatic drilling powder module is slidably installed on the top of the frame; among them, the automatic clamping module and the automatic drilling powder module can move relatively; The automatic collection module includes a collection vessel and a collection manipulator. Both the collection vessel and the collection manipulator are installed on the frame. The collection vessel is located below the temporal bone clamping position for collecting the powder of the drilling powder; Fill the powder collected in the collection vessel.