103 results about "Skull" patented technology

The invention provides an orthodontic skull lateral film cervical vertebra image segmentation method and system. According to the method, an orthodontic skull side position film image to be processed is obtained, a target image area containing a second cervical vertebra, a third cervical vertebra and a fourth cervical vertebra is determined, then image preprocessing is carried out on the target image area to obtain a standardized input image, then the standardized input image is input into a CNN-Transformer fusion segmentation network for segmentation reasoning, and the image is obtained. According to the method, the centrum segmentation masks of the second cervical vertebra, the third cervical vertebra and the fourth cervical vertebra are output, and finally, the segmentation result is output based on the centrum segmentation masks, so that the segmentation result is output based on the centrum segmentation masks, and a repeatable and traceable objective basis can be provided for subsequent morphological parameter extraction and bone age / maturity quantitative evaluation; the subjective deviation and time cost of manual sketching are practically reduced, and the segmentation consistency and availability under the cross-individual and cross-equipment condition are improved.

Systems and methods of reconstructing photoacoustic imaging data corresponding to a brain of a subject through a skull of a subject utilizing a reconstruction method that incorporates a spatial model of one or more acoustic properties of the brain and skull of the subject derived from an adjunct imaging dataset.

The invention provides an auxiliary flexible fixing device for oral cranio-maxillofacial osteotomy, which is mounted on a bed body, pawl rack assemblies are respectively arranged on two sides of the bed body, the pawl rack assemblies are connected with side fixing plates of the bed body through supporting assemblies, and the pawl rack assemblies on two sides are respectively connected with flexible clamp assemblies through guide rail connecting pieces; the flexible clamp assembly comprises a positioning plate, the positioning plate is connected with the guide rail connecting piece through a supporting column and a side plate in sequence, a plurality of pressing columns arranged at intervals are arranged on the positioning plate, second springs are arranged between the ends, away from the positioning plate, of the pressing columns and the side plate, and ball heads are arranged at the ends, exposed out of the positioning plate, of the pressing columns. The supporting assemblies, the pawl rack assemblies and the flexible clamp assemblies which are used in pairs are adopted, the mode of one-time moving positioning and double locking is completed, and due to reverse locking devices of pawls and ratchets, the first locking mode is achieved; the pressing column of the flexible fixing device fits the shape of the skull of the patient, the pressing column is locked, and a second locking mode is achieved.

The invention belongs to the technical field of medical instruments, and discloses a neurosurgery head frame capable of achieving image recognition and position adjustment and a using method, and the neurosurgery head frame comprises a supporting base, a head supporting ring and a plurality of fixing head nail suites; the top end of a vertical plate of the supporting base is provided with an arc-shaped groove sliding way which is arranged in an inwards-concave mode, a plurality of fixing head nail sets are detachably installed on one side face of the head supporting ring in the circumferential direction of the head supporting ring and can abut against and make contact with the head of a patient to fix the head, and the head supporting ring is installed on the arc-shaped groove sliding way in a sliding mode. The head supporting ring and the arc-shaped groove slide way are locked through a locking screw, the rotation angle of the head supporting ring in the arc-shaped groove slide way can be adjusted by unscrewing the locking screw, and then the head position rotation angle of the head is adjusted. The supporting base and the head supporting ring are provided with a plurality of identification point positions. The head frame can provide fixation of different head positions required by an operation, is suitable for various different head neurosurgery operations, and can quickly recognize the change of the head position through an image.

The application relates to the medical imaging technical field and discloses a motion detection method and device for a perfusion scanning process and a CT scanning device, wherein the motion detection method comprises the following steps: acquiring an image of a current scanning circle; performing skull region segmentation on the image of the current scanning circle to obtain a skull mask image of the current scanning circle; comparing the skull mask image of the current scanning circle with a target skull mask image to determine an overlapping degree index; and determining the motion condition of the patient's head according to the overlapping degree index. The image reconstructed by the current scanning circle is acquired in real time during the scanning process, the image of the current scanning circle is subjected to skull region segmentation to obtain a skull mask image, and the overlapping degree index of the skull mask image of the current scanning circle and the target skull mask image is determined, so that the motion condition of the patient's head can be quantitatively evaluated, and the motion detection accuracy is improved.

A perforator for cutting a hole in bone tissue is provided. The perforator comprises an anchor, a hole cutter configured to rotate around the anchor, and conversion means for converting rotational motion of the hole cutter around the anchor into linear motion of the hole cutter towards the material to be cut. The invention is usable to cut holes in a wide variety of materials, in particular for a perforator for cutting a hole in a skull of a human or animal. A kit of parts and a method of cutting a hole are also provided.

The invention relates to the technical field of medical instruments, and provides a positioner for orthognathic surgery in order to solve the problems of large jaw bone positioning deviation, poor operation collaboration and insufficient flexibility in the surgery in the orthognathic surgery, the positioner comprises a fixing mechanism which sleeves the head of a patient and is used for providing a supporting reference relatively fixed with the head for the whole positioner; the distraction mechanism is connected to the fixing mechanism and used for distraction of lip and cheek soft tissue of the patient so as to expose an operation area; the positioning mechanism is connected to the lower portion of the distraction mechanism and used for locking the upper and lower jawbones of the patient at the preoperative designed positions and achieving reproduction. The device can synchronously realize skull reference fixation, stable exposure of soft tissues in an operation area and accurate positioning of the upper and lower jawbones, solves the problem of offset of the lower jawbones, supports rapid separation and reproduction of the positions of the jawbones in the operation, is adaptive to different patient forms, is suitable for various complex orthognathic operations, and improves the positioning accuracy and the operation collaboration.

The present application provides a light treatment device for suppressing or preventing Alzheimer's disease. A light treatment device includes a carrier structure and an array of near-infrared irradiation units. The bearing mechanism forms an accommodating space for the head of the object and bears the array of the near-infrared irradiation units. The array of near-infrared irradiation units is configured such that near-infrared light is emitted into the accommodation space, when the head of the subject is in place, an irradiation space range covering at least the anterior upper cranial portion, the top cranial portion, the left cranial portion and the right cranial portion is formed, and the time-average total irradiation power of the head cover portion acting on the head of the subject is 27.5 W or more, 31 W or more, 40 W or more, or 60 W or more, and the irradiation power of the head cover portion acting on the head of the subject is 27.5 W or more, 31 W or more, 40 W or more, or 60 W or more. Or more than 70W, and the space-time average optical power density irradiated to each part does not exceed 230mW / cm < 2 >. The light treatment device does not depend on nasal and ocular irradiation, achieves an optimized treatment effect on AD patients from MCI to dementia during the course of treatment, and not only effectively maintains the treatment effect but also continuously increases the treatment effect when the light treatment is interrupted.

The utility model relates to the technical field of training teaching aids, in particular to a sclera jacking and pressing training teaching aid, which comprises a head model, a main control board, a silica gel eyeball model, a Bluetooth module, a voice module and a USB (universal serial bus) charging port, and is provided with a structure of a head, eye sockets, eyelids, conjunctival sacs and eyeballs, so that the model is closer to a real human eye structure; according to the simulation operation teaching aid, the jacking effect can be sensed in real time, a prompt tone can be given out, final evaluation can be made, a wide-area fundus photograph of a real case can be mapped into a retina 3D printing model, a vivid crack-derived retina shedding simulation operation teaching aid is achieved, meanwhile, a virtual eyeball is simulated at a mobile phone or a computer end, the jacking position, range and force are synchronously reflected, and the simulation operation teaching aid can be used for simulating the retina. The sclera jacking and pressing teaching aid is a multimedia physical teaching aid which combines visual virtual guidance and force and position perception, enables an operator to feel more vivid operation and more real feeling, obtains intelligent guidance of a computer, and quickly masters the sclera jacking and pressing technology in an operation.

The invention discloses a skull base dura mater stitching instrument, and relates to the technical field of medical instruments, the skull base dura mater stitching instrument comprises a tube body and a handle, one end of the tube body is provided with a stitching head, the stitching head is internally provided with a stitching seat, and the stitching head is internally provided with a clamping assembly facilitating stitching; a stapling assembly for suturing the dura mater is arranged in the suturing head; a driving assembly used for providing a power source for the clamping assembly is arranged in the sewing base. According to the endocranium suturing device, pre-stretching force is applied to the to-be-sutured area of the endocranium to form a tension gap, so that accurate penetration of suturing nails is facilitated, and the situation that the endocranium cannot be sutured effectively is avoided; suturing nails which are pushed to the pressing gap by the first spring in the storage groove can be pressed at a 90-degree vertical angle through the pressing roller, so that rapid and efficient suturing work on the dura mater is realized.

The invention discloses a dummy head injury testing device and method for an impact test, the testing device comprises a head assembly, the head assembly comprises a skull, brain tissue, head skin and a sensing device, eye sockets are arranged on the skull, and bionic eyeballs are arranged at the eye sockets; the brain tissue comprises bionic brain tissue and bionic cerebrospinal fluid; the head skin comprises a head skin body and flexible sensing skin arranged on the outer surface of the head skin body, the flexible sensing skin comprises a flexible substrate layer, wire electrodes arranged on the two end faces of the flexible substrate layer respectively and insulating layers covering the wire electrodes, and a plurality of wire electrodes are arranged on the two end faces at intervals. The wire electrodes on the two end faces are orthogonally arranged to form an array structure, and raw materials of the flexible substrate layer comprise silicone rubber and a conductive material. The testing device is good in biological simulation degree, the testing result is closer to the real situation, multiple sensor configuration schemes are provided, and more head injury data can be obtained.

The invention provides a soft tissue adaptive enhancement method and enhancement device for a skull side position film, and the method comprises the steps: calculating a binarization threshold value of a skull side position image according to a gray level histogram and a cumulative distribution function, and generating a binary image of the skull side position film according to the binarization threshold value; extracting a mouth and nose soft tissue region from the binary image; carrying out local self-adaptive dynamic enhancement on the extracted mouth and nose soft tissue area; and carrying out weighted fusion on the enhanced mouth and nose soft tissue area image and the original image of the skull side position film to form a soft tissue enhanced image of the skull side position film. According to the method, the binarization threshold value of the skull side bitmap is calculated by fully utilizing the rule of the brightness range of the mouth-nose soft tissue area, the mouth-nose soft tissue area image can be accurately positioned, and through the local self-adaptive dynamic enhancement and image fusion technology, on the premise that gray level distribution of other anatomical structures is not damaged, the image fusion precision is greatly improved. The visual effect of the mouth and nose soft tissue area image is obviously improved, and more reliable image support is provided for clinical diagnosis.

The invention relates to the technical field of biomedical materials, and discloses a preparation method of an injectable composite support material for denasal endoscopic skull base reconstruction, and the method comprises the following steps: preparing a component A aqueous solution and a component B non-aqueous phase paste; the component A comprises a hyaluronic acid derivative grafted with dopamine and alginate. The component B is paste in which calcium salt solid-phase particles, enzyme, polymer microspheres and nanoscale fumed silica are dispersed in a non-aqueous phase dispersion medium, and the nanoscale fumed silica is used for inhibiting solid-phase particle sedimentation. According to the method, the prepared component A and the prepared component B are respectively packaged in a double-component application device. According to the invention, active components are isolated in a non-aqueous phase, and controllable operation time, firm adhesion to tissues and mechanical support provided by polymer microspheres are realized through a staged curing mechanism of ionic crosslinking and enzymatic crosslinking during use; the problem that an existing material is difficult to consider storage stability, operation convenience and composite functionality at the same time is solved.

The strabismus demonstration model comprises a head model and an eyeball model assembly, the head model is provided with eye sockets, the eyeball model assembly is installed in the eye sockets and comprises eyeball beads and extraocular muscle simulation assemblies, the eyeball beads are connected with the extraocular muscle simulation assemblies, and the extraocular muscle simulation assemblies are connected with the eyeball beads. The eye muscle simulation assembly comprises six elastic rubber strips, a large fixing ring and a small fixing ring, real eye muscles are simulated through the six rubber strips, and various strabismus conditions can be simulated by adjusting the rubber strips at corresponding positions. According to the strabismus demonstration model, the head model and the eyeball model assembly are arranged, the eyeball model assembly comprises the six elastic rubber strips, the large fixing ring and the small fixing ring, real eye muscles are simulated through the six rubber strips, and various strabismus conditions can be simulated by adjusting the rubber strips at the corresponding positions; therefore, strabismus formation and treatment effects can be visually displayed, and doctors, patients and family members of the doctors, the patients and the family members of the doctors can conveniently understand complete extraocular muscles and strabismus surgery principles.

A modular physiological training system including a torso, a rear skull portion, an airway assembly, and a front skull portion. The torso assembly representing a portion of a torso of a patient. The rear skull portion operably coupled to the torso assembly, and representing a rear portion of a patient's skull. The airway assembly representing an airway of the patient. The front skull portion including one or more coupling mechanisms, and representing a front portion of the patient's skull. The torso assembly and the rear skull portion configured to receive a portion of the airway assembly. The one or more coupling mechanisms of the front skull portion configured to operably couple the front skull portion to the airway assembly, and a front skull portion to the rear skull portion.

The present invention discloses a suturing device for the dura mater at the base of the skull, which relates to the technical field of medical devices and comprises a tube body and a handle. A suturing head is provided at one end of the tube body, a suturing seat is provided inside the suturing head, a clamping assembly for facilitating suturing is provided inside the suturing head; a stapling assembly for suturing the dura mater is provided inside the suturing head; and a driving assembly for providing a power source to the clamping assembly is provided inside the suturing seat. In the present invention, a pre-stretching force is applied to the area of ​​the dura mater to be sutured to form a tension gap, thereby facilitating the precise penetration of the suture staples and avoiding the situation where the dura mater cannot be effectively sutured. When the first gear sector is separated from the driven gear, the suture staples in the storage tank pushed to the compression gap by the first spring can be pressed together at a 90° vertical angle by the pressure roller, thereby achieving fast and efficient suturing of the dura mater.

An implantable cranial medical device (100) includes a first fluid flow path, a second fluid flow path, and upper flange portion (110), and a lower portion (120). The upper flange portion (110) is configured to rest on a skull of a subject about a burr hole. The lower portion (120) is configured to be placed within the burr hole. The first fluid flow path may extend from a first opening (150) in the upper flange portion (110) to a first opening (132) in the lower portion (120). The second fluid flow path may extend from a second opening (140) in the upper flange portion (110) to a second opening (134) in the lower portion (120).

The invention discloses a periocular anesthesia block teaching model and a use method thereof, and relates to the technical field of medical teaching aids, the periocular anesthesia block teaching model comprises a skull model made of a transparent material, the skull model is provided with two symmetrical holes, and the two symmetrical holes form an orbital cavity; the two eyeball models are respectively arranged in the two holes, and transparent periorbital soft tissue layers are filled between the eyeball models and the corresponding holes; the bionic skin layer is attached to the front side of the skull model and is detachably connected with the skull model; and the rear target area is located at the rear part of the eyeball model, is made of a transparent material, and can receive the dyed injection liquid and drain the dyed injection liquid to a set position. According to the periocular anesthesia block teaching model and the use method thereof, visualization of the teaching process can be realized, operation deviation is reduced, and training efficiency is improved.

This invention relates to a head frame assembly, comprising: a base configured for fixation to a patient's skull, the base including a support, a plurality of biocompatible screws mounted on the support, and a radiopaque ring, wherein the radiopaque ring has a zero-scale point, and the radiopaque ring and the zero-scale point are identifiable by CT or MRI imaging technology; a head frame including: a support frame; a planar rotating ring rotatably mounted on the support frame; a top cover mounted on the planar rotating ring and having a dial displaying a rotation angle φ; a swing arm consisting of a horizontal axis and a vertical axis, the swing arm being configured to swing controllably by a swing angle θ and to rotate controllably with the planar rotating ring by a rotation angle φ; wherein the vertical axis is axially hollow, defining a puncture channel for removable insertion of a puncture needle; wherein the head frame is removably fixed to the base.

The utility model relates to the technical field of stuffed toys, in particular to a stuffed toy with movable joints, which comprises a plastic framework and an iron framework, the plastic framework and the iron framework are both connected with a neck and a skull, the neck is connected with the skull through bone grains, the plastic framework is connected with four first support legs, the plastic framework is connected with a tail, and the tail is connected with a joint. A hollow supporting block is fixedly arranged at the bottom of the skull, a movable block is rotationally connected to the hollow position in the middle of the supporting block through a circular shaft, a jaw is fixed to one end of the movable block, the jaw can be directly opened when the plush toy needs to move, and the circular shaft provides rotating supporting force for the jaw. When the joints need to move, the bone grains are directly rotated in any direction of the joints, and then the universal balls can move in the ball grooves, so that the joints of the stuffed toy can move, and the playing interest of children is improved through multi-angle and multi-direction rotation of the joints.

The application relates to the technical field of medical devices, in particular to a craniotomy device for neurosurgery, which comprises a surgical bed, an adjusting part and a craniotomy part, the bottom surface of the surgical bed is provided with a base, the top surface of the surgical bed is symmetrically provided with bases, the adjusting part is slidingly installed on the bases, the craniotomy part is slidingly connected with the adjusting part, the end surface of the craniotomy part is arranged towards the surgical bed, the surface of the craniotomy part is provided with a positioning part, and the positioning part can be in contact with the head of a patient; the craniotomy direction can be adjusted to meet the operation requirements of different directions, and the craniotomy equipment can be positioned to improve the drilling precision.

The invention relates to a mouse simulator for stereotactic surgery training, which comprises a head having a hollow skull. The simulator also comprises an electronic detection assembly comprising a sensor located inside the skull and a detecting module located on the outside of the simulator, wherein the detecting module is in electrical communication with the sensor and with a cannula. The detecting module also comprises one or more feedback indicators activated by means of the cannula making contact with an area of the sensor.

This utility model discloses a percutaneous cranioauricular acupoint electrostimulation device, comprising a main body of the device positioned opposite to the circumference of the human head. The main body includes a forehead stimulator and a first adjustment component. The forehead stimulator provides electrical stimulation to acupoints on the forehead. The first adjustment component adjusts the circumference of the main body. A vertex stimulator is also mounted on the main body, providing electrical stimulation to acupoints on the top of the skull. The vertex stimulator includes a second adjustment component, which adjusts its circumference. An ear stimulator is positioned near each ear, providing electrical stimulation to acupoints on the ear. This utility model integrates and miniaturizes the forehead stimulator, vertex stimulator, and ear stimulators, allowing the entire device to be worn on the head, reducing wiring and significantly improving ease of use.

The application discloses a minimally invasive brain resistance impedance measurement imaging method and related devices, from the acquired imaging data at different times, two frames of image data are selected; wherein the imaging data at a time is a frame of image data, each frame of image data is composed of a plurality of potential data acquired, and each potential data is obtained by a microneedle electrode pair arranged on the top of the head and a pair of scalp electrodes arranged around the brain; one frame of image data in the two frames of image data is taken as background frame data, and the other frame of image data is taken as foreground frame data, then the two frames of image data are differentiated to obtain a plurality of potential change data; the plurality of potential change data is normalized and converted into pseudo-color values; the pseudo-color is filled into a brain partition image to obtain a brain impedance simplified imaging result. The application can obtain electrical signals by using microneedle electrodes and scalp electrodes without opening the skull, perform signal processing, and then realize intracranial impedance disturbance imaging.

The invention relates to the technical field of medical instruments, and provides a pressure-adjustable craniocerebral protective cap in order to solve the technical problems that bandaging after an existing craniocerebral operation cannot be adjusted in time according to craniocerebral pressure, and the pressure cannot be measured and accurately controlled, the pressure-adjustable craniocerebral protective cap comprises a cap body, an opening is formed in the cap body, the opening is of a folded edge design, and a plurality of through holes are formed in the surface of the cap body; an elastic bridle is arranged on the lower edge of the cap body and is used for adjusting the tightness degree of the cap body; the air bag penetrates through the through hole in the surface of the cap body, and the inner side of the air bag is communicated with a human craniocerebral defect area; the pressure adjusting structure is arranged on the outer side of the air bag, communicates with the interior of the air bag and is used for conducting adaptive adjustment when the pressure of the air bag changes. Self-adaptive adjustment can be carried out according to intracranial pressure changes, meanwhile, the device can be tightly attached to a craniocerebral defect area, and intracranial pressure fluctuation caused by factors such as external pressure changes or slight collision of the head is avoided.

The invention relates to an anatomical localisation device (2) and method. The method comprises: obtaining an image (IM1) of a patient (UR2); detecting at least two first anatomical points (PT1) associated with the skull of the patient; determining a first value (V1) representative of a reference distance (D1) separating the two first anatomical points; detecting two second anatomical points (PT2) associated with the shoulders of the patient; locating a midsternal line equidistant from the second anatomical points (PT2), wherein the midsternal line intersects, at a point of intersection, a segment defined by the second anatomical points (PT2); and determining co-ordinates (C1) of at least one target anatomical point (PT3) by calculating second distances (D2x, D2y) from the at least one target anatomical point to the point of intersection, wherein the second distances are determined on the basis of the first value (V1).

1. Name of the product in this design: Skull nail electrode. 2. Application of this design: This design is used for implementing shallow temporal interference electrical stimulation in animal experiments and for implementing temporal interference electrical stimulation in animal experiments under magnetic resonance compatible environments. 3. The key design feature of this product is its shape. 4. The picture or photo that best illustrates the key design points: Design 1 3D diagram 1. 5. Design 1 is designated as the basic design.

1. The name of this design product: earmuffs (high skull top). 2. Purpose of this design product: earmuffs for keeping warm. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. This design is a thin product, and the top view, bottom view, right view, and left view are omitted.

Apparatus and associated methods relate to a thermal compressive surgical treatment mask. In an illustrative example, a multi-layered mask assembly is configured to simultaneously apply heat or cold and graduated compression to a predetermined medical target area (e.g., skull cap, face, ears, jaw, chin, or neck). The multi-layered mask assembly includes a multi-layered mask including a silicone-based gel layer and an aperture configured to fit the eyes and nose. A detachable neck strap is operably coupled to the multi-layered mask to extend therapeutic coverage along the cervical region. The multi-layered mask assembly is configured to provide effective thermal therapy and compressive therapy to reduce pain and swelling and enhance lymphatic and venous drainage for a patient post-surgery. Various embodiments may advantageously conform to different anatomical regions, accommodate diverse surgical procedures, and improve patient comfort and recovery by integrating both thermal and compressive functionalities in a single wearable system.

The application relates to a heat management implantable brain-computer interface device and a packaging method thereof. The heat management implantable brain-computer interface device comprises a first shell in contact with scalp tissue and a second shell in contact with a skull or brain tissue; the first shell and the second shell cooperate to form a sealed outer shell packaging element, and the outer shell packaging element internally accommodates brain-computer interface device electronic elements; the first shell is made of a good thermal conductor; and the second shell is made of a poor thermal conductor. The heat management implantable brain-computer interface device provided by the application can avoid the diffusion of heat mainly to brain tissue and maximally reduce brain tissue heat damage by adopting different shell materials with different thermal properties for packaging without increasing the size of the device and reducing the performance of the device.