207 results about "Skull" patented technology

The present invention relates to a helmet-type magnetic stimulation device comprising an inner sheath in contact with a skull part when the device is worn. The helmet-type magnetic stimulation device of the present invention is a helmet-type magnetic stimulation device for applying a magnetic field to nerve cells in the skull part or scalp cells so as to provide a non-invasive treatment, and includes a dome part providing a space in which the skull part is accommodated when the helmet-type stimulation device is worn; and an inner sheath inserted into the dome part to adjust the inner diameter of the dome part, wherein the inner sheath includes: a circumferential part disposed in an area which annularly surrounds the skull part in order to adjust the inner diameter of the dome part; and a connection part connected to one end and the other end of the circumferential part so as to connect the one end and the other end while crossing the upper side of an opening formed by the circumferential part.

A mounting system for displaying hunting trophies includes a mounting plate for attachment to a wall, a trophy mount assembly configured to retain a portion of a game animal, such as a skull, antlers, etc., and a telescoping tube assembly operatively interconnecting the trophy mount assembly and the mounting plate. The telescoping tube assembly enables a user to alter the distance between the trophy mount assembly (any any hunting trophy retained thereby) and the mounting plate and the wall to which it is attached. Other features may include a joint assembly interconnecting the telescoping tube assembly and the mounting plate to provide three axes of adjustability, and an insert member that is readily detachable from the mounting plate to enable a user to display other trophies from the mounting plate.

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.

The invention relates to a cervical vertebra bone age staging identification method. The method comprises the following steps: S1, acquiring a skull side film of a cervical vertebra bone age staging object; s2, inputting the skull side position film into a cervical vertebra region target detection model to remove irrelevant backgrounds, and only retaining target regions containing C2, C3 and C4 joints; s3, inputting the area detected in the S2 into an instance segmentation model to segment C2, C3 and C4 joints, and labeling category labels; s4, inputting the area detected in the S2 into a mark point detection model to extract mark points with detail information at the edges of the bone joints C2, C3 and C4; and S5, inputting the features extracted in S3 and S4 into a cervical vertebra staging estimation module to obtain a final staging result. Compared with the prior art, the method has the advantages that the traditional manual skull side position film evaluation is converted into automatic detection, segmentation and staging tasks by using deep learning, so that the diagnosis efficiency is greatly improved, the staging accuracy is improved, and a doctor is effectively assisted in making an orthodontic plan.

A system for detecting and / or assessing a subdural hematoma, constituted of: a wearable structure, configured to be worn on a head of a subject; an optical sub-system, mounted on the wearable structure and being configured for emitting light towards a predetermined location in relation to the wearable structure, and sensing the emitted light returning from the predetermined location, wherein the optical sub-system being further configured for generating a respective set of signals responsively to interactions of the emitted light with the skull-contained matter of the subject; a radio transceiver sub-system configured for emitting sub-optical radiation and generating a signal responsively to an interaction of the radiation with the skull-contained matter of the subject; and a data processor configured to: analyze the signals of the optical sub-system and the radio transceiver sub-system, and detect and / or assess a subdural hematoma of the subject based on the analysis.

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 utility model relates to an ophthalmology instrument experiment animal platform which comprises an ophthalmology equipment adaptation frame and an animal platform body. The ophthalmology equipment adaptive frame comprises a column clamp, an adjusting frame and a base, the column clamp is used for clamping an ophthalmology equipment column, and the base is connected to the bottom of the adjusting frame and used for being supported on an ophthalmology equipment neck support; the animal platform is installed on the adjusting frame, the platform surface of the animal platform is located in the observation view field of the ophthalmology equipment in front of the adjusting frame, and an experimental animal fixing device is arranged on the animal platform; the experimental animal fixing device comprises an animal body fixing structure, a tooth fixing structure and a skull fixing structure to form a three-stage fixing system, so that the experimental animal is fixed and the eyes are still. The ophthalmological instrument experimental animal platform can be matched with common instruments for ophthalmological examination, experimental animals can be conveniently fixed, animal eyeballs are prevented from shaking and the like, the observation angle and distance of the eyeballs of the experimental animals can be accurately adjusted, the consistency of ophthalmological examination operation is guaranteed, and experimental animal imaging scientific research data are accurate.

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 field of titanium alloy smelting, and relates to a titanium alloy cast ingot vacuum consumable skull remelting method, which comprises the following steps of: distributing materials in a water-cooled copper crucible, sealing the furnace, carrying out arcing smelting through a self-made consumable electrode and raw materials in the crucible, continuously overflowing titanium liquid to fill the bottom of the water-cooled copper crucible, gradually completing smelting and casting into an ingot, through an on-line feeding system, single-furnace multi-time casting is achieved, and casting of 1-5 cast ingots is completed; and breaking the vacuum of the furnace chamber and the casting chamber, lifting out the mold, taking out of the furnace and ingot casting, taking out the skull in the water-cooled copper crucible for local flattening treatment, and paving the skull at the bottom of the water-cooled copper crucible to be used as the skull. According to the method, different raw material forms are combined on the basis of titanium alloy mark components, and equipment and process limitations during remelting of the titanium alloy returned furnace charge are broken through in a process mode of combining presetting in a crucible with online charging, so that high-quality remelting of 20-80% of the returned furnace charge is realized.

[Problem] The purpose of the present invention is to provide a brain activity measuring device that is capable of measuring brain activity over a wide region. [Solution] The brain activity measuring device comprises: a brain diagnosis probe; a detection signal reception unit for receiving a detection signal from the brain diagnosis probe; and a signal analysis unit for analyzing the detection signal received by the detection signal reception unit and obtaining measurement information for measuring brain activity. The brain diagnosis probe has multiple sheet-shaped probe units, and each of the multiple sheet-shaped probe units is placed inside the skull via a hole prepared in the skull of the living organism in question.

The intraoperative three-dimensional traction assembly comprises a base, a first ventilation groove is formed in the top of the base, and at least three non-collinear lifting rods and rollers capable of being braked are arranged at the bottom of the base; the sliding rails are matched with the rollers capable of being braked; the cushion block device is placed at the top of the base and at least divided into a first cushion block and a second cushion block which are distributed left and right, the first cushion block and the second cushion block are located on the two sides of the first ventilation groove respectively, and the first cushion block and the second cushion block are further connected with an adjusting rod; and a traction device. During traction, the base and the cushion block device slide along with the skull of the patient, and the risk that the face of the patient is pressed and rubbed by the cushion block device is reduced; by arranging an adjusting rod, the size of a containing groove of the cushion block device can be flexibly adjusted according to the size of the face of the patient; the arrangement of the at least three independent lifting rods enables the base to be changed into four different inclined states from a horizontal state, so that the skull and the cervical vertebra of a patient can be subjected to forward bending, backward bending, left rotating and right rotating actions, a traction device is assisted, and a better operation effect 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.

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 present invention discloses an electronic umbrella element for minimally invasive surgery. According to an embodiment of the present disclosure, the electronic umbrella device for minimally invasive surgery comprises: a central support part; and a branch part extending from the central support part. When the element enters an environment between an inner wall of the skull and a surface of the brain, the branch part is unfolded and comes into contact with the surface of the brain to work, followed by being biodegraded and discharged to the outside of the body.

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.

Disclosed in the present invention are an acoustic impedance matching material, a preparation method therefor, and a use thereof. The acoustic impedance matching material comprises a plurality of impedance layers which are stacked; along the stacking direction, the impedance layers are sequentially arranged according to the exponential change relationship of acoustic impedance; each impedance layer comprises a liquid matrix material and a filler located in the liquid matrix material. The acoustic impedance matching material in the present invention enables ultrasonic to maintain sufficient energy and large bandwidth to enter the skull, achieves high imaging resolution and high focusing intensity, can guarantee efficient transcranial ultrasonic energy transmission, and is thus used for brain disease observation and treatment.

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.