151 results about "Skull" patented technology

Systems and methods are provided for performing transcranial diagnostic procedures using a transcranial ultrasound transducer array. The array elements are positioned and oriented such that far field regions respectively associated therewith spatially overlap within the brain of a patient. The array elements may be oriented approximately normal to the skull, permitting efficient coupling of ultrasound energy into the brain. The array elements are controlled to generate ultrasound pulses, where the timing of the pulses is controlled, based on registration between the array elements and volumetric image data, such that ultrasound energy is focused at a target within spatially overlapping far fields of the array elements. The transcranial ultrasound transducer array elements may be positioned and oriented relative to the skull such that their respective ultrasound beams are focused within the skull and diverging with the brain.

A stereotactic system for attachment to a skull of a patient can include a mounting device that can include a mounting base configured to be attached to the skull, a sheath removably attached to the mounting base, a guide frame, and a guide member. The guide frame has a frame body that removably attaches to the mounting base and receives the sheath, a plurality of arms extending outwardly from the frame body, and a plurality of fiducials attached to the plurality of arms. The guide member is received within the frame body and receives the sheath such that the sheath is pivotable relative to the mounting base within the guide member. The guide member is configured to fixedly secure the sheath to the mounting base.

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 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 discloses an individual head tissue conductivity model construction method and system. According to the method, a non-uniform intracranial tissue conductivity value is obtained by adopting a conductivity model construction method based on the water content, and meanwhile, the conductivity of the scalp and the skull is measured through an improved electrical impedance imaging technology, so that the defects of the conductivity model construction method based on the water content during measurement of the conductivity of the scalp and the skull are overcome. According to the method, the difference of individual tissue conductivity is fully considered, the conductivity distribution of the head tissue of each patient can be measured independently, and a more accurate simulation modeling and optimization scheme can be provided in the fields of electrical stimulation of nerve regulation, tumor electric field treatment and the like.

According to an aspect of the present disclosure, a hearing aid is disclosed. The hearing aid including a vibrator configured to apply a main vibration stimulation onto a skull of a recipient of the hearing aid. The vibrator may include a first assembly which comprises a magnet configured to provide a static magnetic flux and a coil configured to provide a dynamic magnetic flux based on a first current, and the coil may be wrapped around at least a part of the magnet. Furthermore, the vibrator includes a second assembly which includes a vibrator transfer unit and a suspension spring, and wherein the first assembly may be configured to move relative to the second assembly generating a first vibration based on the static and the dynamic magnetic flux, and the first vibration may be transferred to the vibrator transfer unit. Additionally, the vibrator includes a first piezo assembly configured to move based on a second current generating a second vibration, and wherein the first piezo assembly may be connected to the vibrator transfer unit, and when the first piezo assembly moves, a second vibration may be generated, and the second vibration may be transferred to the vibrator transfer unit. The main vibration which is transferred to a skull of the recipient via the vibrator transfer unit may include the first vibration and / or the second vibration.

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.

According to one aspect, the present description relates to a portable device (10) for acquiring electroencephalographic (EEG) signals emitted by a user. The portable device comprises a flexible support (11) intended to fit a localized region of the skull of the user and a set of sensors (13) of electrical signals generated by the neuronal activity of the user, arranged on said support (11) so as to form contacts with the scalp when the device is worn by the user. For each sensor, an electronic circuit for filtering and amplifying electrical signals detected by said sensor is incorporated in the flexible support (11) and forms, with said sensor, an active electrode. The portable device also comprises a housing (12) comprising an electronic system for processing signals from said electronic filtering and amplification circuits, said housing being linked mechanically to the flexible support to form, with said support, a means of attachment to a garment or accessory intended to be worn by the user.

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.

An intracranial pressure measurement device has a first plate abutting a patient's dura mater and displaced from a second plate abutting an endocranial surface of the patient's skull. The displacement of the first plate and second plate during elevated intracranial pressures are indicated visually on the device and visible through, e.g., X-ray imaging. This allows the intracranial pressure to be correlated to the mechanical displacement of the first plate from the second plate.

A non-fixed implant is proposed, which is made of raw materials including a biomaterial, a ceramic matrix composite with excellent osteoconductivity, and a polymer. The non-fixed implant can be precisely fixed to the gap between the skull and the bone flap and can be conveniently used. A method for manufacturing the non-fixed implant is also proposed. The non-fixed implant includes a flexible wedge that can be deformed to conform to the outer contour of the bone flap, and a plurality of wings connected to the upper or lower part of the flexible wedge and extending to both sides of the flexible wedge. The wings have a porous structure. The wings on one side will be located on the bone flap, while the wings on the other side will be located on the skull. The non-fixed implant has the following advantages: it can precisely fill the defect formed by craniotomy, has improved biocompatibility and osteointegration ability, and allows tissue invasion.

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.

The present invention belongs to the technical field of digital image processing, and specifically relates to an intracranial microwave imaging method, device and storage medium with adaptive hierarchical confocal. When using antenna arrays with different numbers of antennas and antenna arrangement structures, the algorithm can adaptively optimize antenna selection, select the best calculated antenna pairs for imaging at different target positions, and achieve hierarchical imaging of the intracranial region; calculate the transmission time of the microwave signal emitted from antenna #imgabs0#, reflected at the target point #imgabs1# and received by antenna #imgabs2#, calculate the propagation speed of the signal in the skull, introduce a gain coefficient, perform time shift summation on the reflected signals received by different antenna pairs, reconstruct the relative gray-scale image of the target area, and detect the intracranial hemorrhage area. The present invention optimizes the imaging process by adaptively selecting antenna combinations, improves the algorithm performance, image quality and reduces the positioning error.

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.

An improvement to anchor bolts adapted to be screwed into a patient's skull for the purpose of placing a depth electrode at a desired location within the patient's cranium. The improved anchor bolt includes an engineered controlled break point and recovery means such as a secondary fitting to facilitate removal if the anchor bolt is impacted and breaks or bends at the controlled break point. The anchor bolt is intended to be used in a similar manner to existing anchor bolts with the added benefits of protecting the patient from excessive harm from violent impact of anchor bolts which can occur during seizures for example, as well as facilitating removal of remaining parts of a damaged anchor bolt without the need for surgical intervention and in a relatively easy fashion.

1. The name of the product of this design: Fluffy Clip (High Skull Top). 2. Purpose of the product of this design: to be worn on the top of the head to make the hair fluffy. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: Stereoscopic diagram 1.

The invention relates to a method and device for maintaining a separately-determined trajectory and securing an electrode or other such placed object through a bone, such as a skull, while also covering the aperture. The device includes a base and an engaging-disengaging butterfly with inner sleeve for temporary engagement of the base and sliding screwdriver for engaging the base or butterfly inner sleeve, depending upon desired function. The base's lower portion engages via threads the bone, while maintaining previously determined trajectory; the upper portion engages the butterfly to continue to maintain previously determined trajectory electrode trajectory; a feature grasps a passing electrode in a given position; the electrode grasp from the butterfly can be then released, the base screwed in to final position, and the butterfly disengaged by unscrewing it from the base.