43 results about "Cranial Ridge" patented technology

It has been discovered that pain felt in a given region of the body can be treated, not by motor point stimulation of muscle in the local region where pain is felt, but by stimulating muscle spaced from a “nerve of passage” in a region that is superior (i.e., cranial or upstream toward the spinal column) to the region where pain is felt. Spinal nerves such as the intercostal nerves or nerves passing through a nerve plexus, which comprise trunks that divide by divisions and / or cords into branches, comprise “nerves of passage.”

Described herein is a cranial surgery drill bit having a safety self stopping mechanism for use on bone material to prevent or repair skin erosion and infection which may result from the placement of a cap for holding the lead from Deep Brain Stimulation surgery. The surgical procedure of attaching a lead holding cap onto the bone material of a skull requires an attachment which results in no movement of the lead. Accordingly, counter boring the skull surrounding a pre-existing perforation bore so that the cap is not significantly above the surface of the skull is a technique which allows the cap user to brush hair, etc., without disrupting the attachment and placement of the lead.

A neonatal cranial support bonnet is configured to prevent a premature child's head from deforming under the force of its own weight, because of underdeveloped cranial plates. The bonnet includes a thin cotton shell with contoured gel packs inside. The gel packs are configured to distribute weight around the skull and eliminate or reduce high-pressure points so as to maintain proper shape of the cranium. The bonnet is also configured to not interfere with development, and to not obstruct airways for breathing, so as to meet current Sudden Infant Death Syndrome prevention guidelines.

A method is provided for suppressing or preventing pain in a patient. One step of the method includes positioning first and second electrodes, without penetrating the cranium, on or proximate to at least one of the sphenopalatine ganglia, the sphenopalatine nerves, or the vidian nerves on both sides of the patient's face. At least one of a medication solution, an analgesic, or an electrical signal is then applied to at least one of the sphenopalatine ganglia, the sphenopalatine nerves, or the vidian nerves through the first and second electrodes. Pain signal generation in, or transmission through, the at least one of the sphenopalatine ganglia, sphenopalatine nerves, or vidian nerves is disrupted on both sides of the patient's face.

A drape for use in cranial surgical procedures including a sterile sheet and a plurality of fluid-collection reservoirs surrounding a cranial region fenestration. The drape further can include a thoracic region fenestration for concurrent or directly subsequent thoracic surgical procedures. Advantageously, the drape allows for a superior aseptic surgical field and superior drainage facilitated by a multi-pouch configuration.

A cranial fixation system and method are provided. The system includes two heads slidably connected with telescopic extensions and a spring or an elastomeric flexible component. The two heads are maintained in a distracted position by a locking mechanism until ready for cranial implantation. Once implanted, the locking mechanism is disengaged, thereby allowing the heads to compress towards each other by the spring and approximate the cranial bone flap to the skull.

A cranial fixation system and method are provided. The system includes two heads slidably connected with telescopic extensions and a spring or an elastomeric flexible component. The two heads are maintained in a distracted position by a locking mechanism until ready for cranial implantation. Once implanted, the locking mechanism is disengaged, thereby allowing the heads to compress towards each other by the spring and approximate the cranial bone flap to the skull.

A skull-implantable magnet assembly for delivering a static magnetic field to a patient's brain, comprising a rod-shaped magnet housed within a skull screw, removably attached to a casing housing at least one flat magnet, is described. Details of the exterior construction are discussed, as well as magnet arrangements and methods of treating a brain tumor or neurological ailment of a patient.

The invention provides an ex-scalp skull deletion repairing technique, and relates to the technical field of skull repairing, in particular to an early ex-scalp skull deletion repairing technique performed through a 3D printed photosensitive reticular lamina. Skull deletion usually causes multiple complications, skull repairing is a preferred method for preventing the complications from occurring, but it is generally acknowledged that skull repairing is advisably performed after craniotomy is performed for 3-6 months, and occurrence of the complications is difficult to avoid due to the fact that a patient is not protected by the skull before skull repairing is performed. The complications caused by skull deletion of the patient can be decreased by performing the ex-scalp skull deletion repairing technique through the 3D printed photosensitive reticular lamina. The technique can be operated under local infiltration anesthesia, the process is simple, and pain brought to the patient is little. According to the technique, a 3D printing technique and a skull CT three-dimensional reconstruction technique are combined, the reticular lamina which has the thickness of 2-4 mm and is internally hollowed into a hexagonal lattice shape is made by taking photosensitive resin as a material, and therefore the reticular lamina not only has the certain strength but also has a breathable effect.

A method for performing a cranioplasty includes the steps of prefabricating a sonolucent craniofacial implant based upon information generated by preoperative scans, creating a cranial, craniofacial, and / or facial defect, and attaching the craniofacial implant to the cranial, craniofacial, and / or facial defect. The craniofacial implant is composed of a material that is sonolucent and exhibits attenuation of less than 6 dB / cm.

A skull endosseous module for ultrasound penetration is provided and includes a fixation sleeve permanently inserted and positioned in a drilled hole of a skull, a movable sleeve movably inserted in the fixation sleeve for providing a hollow ultrasound guiding channel; and an outer cover mounted on an outer opening of the fixation sleeve and covered by a scalp tissue. Thus, an ultrasound device outside the scalp tissue can generate ultrasounds to pass through the outer cover and the ultrasound guiding channel for affecting a target region of a brain tissue in the skull.

An emergency trauma stretch bandage cap shaped as a skull cap with roll able edges capable of holding hot or cold packs, which is placed on the cranium to cover the crown, forehead, back of the head, ears, sides of the head around the ears, and the temples of an injured patient with minimal movement of the neck and spine made of two or more layers of a stretchable warp knit fabric cut and sewn to form a form-fitting head bandage shape to apply sufficient pressure to suppress bleeding.

The invention belongs to the technical field of medical equipment, and particularly relates to a non-cranium-drill cranial ridge punching device for big and small mice, which mainly aims to solve the problems that when a traditional electric cranium drill is used for craniotomy, the pore diameter is difficult to adjust, the depth is uncontrollable, cerebral concussion can be easily caused due to the craniotomy carried out by the traditional electric cranium drill, and the like. The invention has the technical scheme that the non-cranium-drill cranial ridge punching device for the big and small mice comprises a handle, a fixing sleeve, an adjusting nut, a protection sleeve, a needle body connecting part, a needle body connecting petal, a fixing rod, a threaded rod and a needle body, wherein the needle body connecting part is arranged at the lower end of the handle, the needle body connecting petal is arranged at the lower end of the needle body connecting part, the upper end of the fixing rod is connected with the needle body connecting petal, the lower end of the fixing rod is connected with the upper end of the threaded rod, the lower end of the threaded end is connected with the needle body, the fixing sleeve is sleeved on the needle body connecting part, the adjusting nut and the protection sleeve are arranged on the threaded rod, and the adjusting nut is positioned above the protection sleeve. The non-cranium-drill cranial ridge punching device for the big and small mice, disclosed by the invention, has the advantages that the pore diameter is adjustable, the depth is controllable, the damage is low, and the operation is simple.

A device and method for preventing and correcting abnormal shaping of an infant's cranium by applying external forces over time with the growth of an infant to achieve normal shaping of the infant's head. The device is a cranial orthosis having a depression with a contact surface in the shape of at least a portion of a normal infantile cranium. The orthosis further provides lateral support surfaces creating points of contact to restrict rotation of the infant's cranium and provide additional external forces for normal shaping of the infant's cranium. Because the present invention is non-conforming to the shape of an abnormal skull, the exerted forces cause accelerated expansion of the skull in less prominent areas coincident with brain and skull growth.

The invention relates to a medical computed tomography imaging apparatus which is especially designed to enable cranial imaging. The structure of the apparatus includes a gantry (2) comprising imaging means (21, 22) and a positioning support (8) which positioning support (8) is arranged to position the patient's cranium for exposure such that, when exposed, the cranium is scanned by a radiation beam substantially parallel with a plane formed by the facial area of the cranium and substantially only in an area on the facial side of the cranium.

The invention belongs to the technical field of neurosurgery, and particularly relates to a safe cranial drill. A main drill bit is provided with main drill bit teeth, the points of the main drill bit teeth intersect at a point on the axial line, the tail end of the main drill bit is provided with raised teeth, the front end of a limit drill bit is provided with auxiliary drill bit teeth, the length of the auxiliary drill bit tooth is less than the length of the main drill bit tooth, the rear of the limit drill bit is provided with first sunken teeth, the front end of a connecting sleeve is provided with second sunken teeth, the first sunken teeth and the second sunken teeth are respectively matched with the raised teeth, a drill bit-connecting rod runs through the connecting sleeve to connect with the limit drill bit through screw threads, a conical compressed spring sleeves a centre, both the conical compressed spring and the centre are located in the drill bit-connecting rod, and a drill bit tail handle is connected with the drill bit-connecting rod through screw threads. The safe cranial drill has the following advantages: the start and stop of the safe cranial drill can be automatically controlled in the process of a surgery, the safe cranial drill can be effectively prevented from drilling through the meninges in the process of the surgery, so that the brain tissue cannot be injured, and thereby the lives of patients are ensured.

The present invention is a visual prosthesis adapted for implantation in the brain, and more particularly with an electrode array adapted for implantation in the Calcarine Sulcus of the visual cortex. The electrode array of the invention has electrodes on each side and spaced appropriately for the Calcarine Sulcus and driven by an electronic circuit within a hermetic package small enough to be implanted with a skull.

The invention discloses a tokay gecko brain three-dimensional positioning device and a positioning method based on a quadrate bone and a maxillary dental top. The special concave structure of the quadrate bone in the auditory meatus of a tokay gecko is utilized by the positioning device, an ear rod end adaptive to the structure of the quadrate bone is designed, left-right leveling and centering effects in clamping the skull of the tokay gecko are ensured; and then the maxillary dental top of the tokay gecko is positioned and clamped by a maxillary support plate, so that the head of the tokay gecko is fully fixed. The positioning device comprises a left-right ear rod clamp, a tokay gecko adapter, a three-dimensional electrode moving device and the like. By the special structure design of the ear rod and the ear rod end and under the cooperation of the positioning to the maxillary dental top of the tokay gecko by the maxillary support plate, the parietal bone and the frontal bone of the tokay gecko no more rotate relatively when tokay gecko opens or closes the mouth and when the body of the tokay gecko moves drastically, so that the standard position of the brain tissue of the tokay gecko in an experiment is ensured; and the positioning device not only achieves firm and reliable positioning, but also has the characteristics of correct positioning and simple operation. The positioning method is also suitable for positioning and clamping other Gekkonidae animals.

The invention relates to the field of ultrasonic detection, in particular to an automatic detection and display method for an ultrasonic craniocerebral abnormal area. According to the technical scheme, firstly, a skull curved surface model is constructed, then edge detection is conducted on a 2D ultrasonic image to obtain a skull edge curve, and the edge curve and the skull curved surface model are used for fitting to determine the position of the 2D ultrasonic image so as to judge whether the 2D image has the symmetry characteristic or not; and finally, carrying out similarity comparison calculation on the two symmetrical regions by utilizing the symmetry characteristic of the 2D image so as to determine whether an abnormal region exists and determine the position of the abnormal region. The method has the advantages that the skull curved surface model is firstly established, the skull boundary curve of the 2D ultrasonic image is detected, the skull boundary curve and the skull curved surface model are fitted to determine the specific position of the 2D image so as to select the 2D image with the symmetry characteristic, and the abnormal area is detected, segmented and displayed by using the symmetry of the 2D image. Therefore, the accuracy of abnormal region detection is effectively improved.

A cranial remodeling orthotic for passive remodeling of a cranium of an infant has (i) a main frame assembly for encircling the infant cranium (ii) at least one support member having a concave inner surface to extend circumferentially with the main frame assembly about a portion of the infant cranium while protruding beyond at least one of the upper boundary or the lower boundary of the main frame assembly, and (iii) a resilient cushion layer lining an inner surface of a portion of the main frame assembly or the support member. The support member is rigid and self-supporting, while being formable in shape upon the application of heat more readily than the main frame assembly. The resulting orthotic can be mass produced while still allowing some customization for the end user so as to effectively treat headshape asymmetry without the need for 3D scans or plaster casting.

The present invention relates to a system intended to aid in the surgical correction of malformed regions of the skull by reshaping bone pieces, particularly in remodeling a skull. The present invention provides a system intended to aid in the surgical correction of a skull, particularly of craniosynostosis, wherein the system shall be based around a set of disposable three-dimensional skull templates, but it is also within the scope of the invention to use skull templates, which are sterilisable and can be re-used. A skull template corresponding to the size and desired head form of the patient is used as a template to remodel the cranial vault.

The invention discloses an improved minimally invasive cranial drill for a neurosurgery clinical operation, which comprises a cranial drill main body and a handle arranged at the bottom of the cranialdrill main body, wherein a rotating cavity is formed in a left end of the cranial drill main body; a motor is fixedly arranged in the rotating cavity; and a rotating shaft is fixedly arranged on an output shaft of the motor. By the adoption of the improved minimally invasive cranial drill for the neurosurgery clinical operation, when a drill bit and the skull generate larger vibration in a cranial drill process, the drill bit can carry out buffering movement, so that the drill bit has a good buffering function, the risk of bone cracking caused by overlarge vibration of the drill bit in the cranial drill process is prevented, potential safety hazards are avoided, the drill bit is quickly disassembled and replaced by people, the working difficulty of disassembling and assembling the drill bit by medical personnel is reduced, meanwhile, the drill bit is more stable to install and fix after replacement, and subsequent safe use of the drill bit is guaranteed.

A system for non-invasively measuring blood volume oscillations inside a cranium of a human subject. The system includes a first light source adapted to be placed on the skin above the cranium of the human subject configured to emit light which penetrates a superficial space outside the cranium. A detector is adapted to be placed on the skin above the cranium of the human subject spaced from the first light source by a first predetermined separation distance that causes the detector to detect light which reflects from the superficial space outside the cranium and output superficial output signals. A second light source is adapted be placed on the skin above the cranium configured to emit light which penetrates through the superficial space outside the cranium to inside the cranium and the detector is spaced from the second light source by a second predetermined separation distance that causes the detector to detect light which reflects from inside the cranium and output cranial output signals. A processing subsystem is coupled to the first light source, the second light source, and the detector. The processing subsystem is configured to alternately enable the first light source and the second light source and alternately enable the detector to detect the light which reflects from the superficial space outside the cranium and the light which reflects from inside the cranium to generate the superficial output signals and cranial output signals. The processing subsystem is responsive to the superficial output signals and the cranial output signals and is further configured to reduce contributions from the superficial space existing in the cranial output signals and generate corrected cranial output signals indicative of blood volume oscillations inside the cranium. The system and method to measure blood volume oscillations inside the cranium of a human subject may use the measured blood volume oscillation to non-invasively measure ICP.

A system for creating cranial remolding orthoses comprises a controller in data communication with an additive fabricator and a scanner. The controller has access to a database of mappings of nonstandard cranial shapes to desired cranial shapes, to cranial scan data for a patient with an existing cranium shape, and to patient-specific information about the patient. The controller has design software for determining from the scan data a development path from the existing cranium shape to a desired cranium shape, the development path comprising a plurality of development path stages. Fabrication software in the controller allows it to instruct the fabricator for fabricating a cranial remodeling orthoses corresponding to the development path without requiring a physical model. The orthoses comprise a monolithic hollow core shell of thickness varying according to the desired remodeling of the cranium, an inner soft liner; and a fastener disposed for mounting the orthoses on the cranium of the patient.

A method of transplanting cells into a subject is disclosed. The method comprises transplanting the cells into the paranasal sinus of the subject or the subarachnoid cavity situated between the frontal bone of skull and the olfactory bulb of the subject. Devices for paranasal sinus transplantation and subarachnoid cavity transplantation are also disclosed.

The invention provides a system for monitoring touch on a patient during operation of a dentist, which belongs to the technical field of medical instruments and is applied to a head model. The head model is provided with a face, cheekbones, a jaw frame, a maxilla, a mandible, cheeks, a jaw, an afterbrain, temples, a forehead and a skull, wherein touch sensors are fixedly arranged on the cheekbones, the forehead and the cheeks, touchness sensors are arranged on the afterbrain, the temples, the forehead and the skull; vector force sensors are fixedly arranged on the maxilla and the mandible respectively. The system also includes a computer, a signal processor and a binocular 3D camera which are electrically connected with the computer. The touch sensors, the touchness sensor and the vector force sensors are electrically connected with the signal processor respectively. The design in the invention can be used for teaching and examination; whether fulcrums of oral medical students in the practical operation process are correct or not is detected in real time, and the injury care awareness is improved. In final examination, various competitions and medical practitioner practice examination, the system assists or replaces judges to evaluate whether fulcrums of examinees are correct or not and whether the examinees have injury awareness or not.

A cranial clamp for attaching a cranial flap to the skull comprises a clamp having a base to be placed against the lamina interna, and a cap acting as a locking member against the lamina externa. The clamp and the cap are linked together by an extension spring within the diploe through a burr hole or along / within the line of a craniotomy.

The invention relates to a minimally invasive brain surgery cannula and / or endoscope fixer. The fixer comprises a base fixedly connected with a skull and a hollow cylinder, wherein the bottom of the cylinder is rotationally connected with the base; the top of the hollow cylinder is provided with an arc plate, the arc plate is one part of the surrounding wall of the other hollow cylinder, the axisof the arc plate is parallel to the horizontal plane, and two sides of the top surface of the hollow cylinder are provided with arc surfaces matched with two sides of the arc plate; and the arc plateand the base are provided with an arc plate through hole and a base through hole for allowing an minimally invasive brain surgery cannula and / or an endoscope to pass. During surgery, the fixer can stably and accurately fix the position of the minimally invasive brain surgery cannula or the endoscope for long time in each direction, each angle and different depths in the three-dimensional space inthe brain; and the fixer can slightly adjust the endoscope at the same time of fixing the minimally invasive brain surgery cannula, and can meet the minimally invasive brain surgery cannulas of different diameters and shapes and different surgery requirements.

The invention discloses an ultrasound-guided photoacoustic microscope imaging method with low reflection artifacts. Ultrasound is used as guidance to realize the low-artifact transcranial photoacoustic microscope imaging method. When doing photoacoustic imaging of small animal brains, photoacoustic signals will produce multiple reflections when passing through the skull, resulting in serious artifacts. The present invention uses a photoacoustic-ultrasonic dual-mode microscope system to collect photoacoustic signals and ultrasonic signals at each position. Utilizing the similar transfer characteristics of ultrasound reflection signals and photoacoustic signals when passing through the skull, the ultrasound reflection signals are used to estimate the photoacoustic transfer function, and the reflection artifacts in the photoacoustic image are removed by deconvolution algorithm. The imaging method proposed by the present invention can non-invasively obtain high-quality three-dimensional photoacoustic images through the skull.

The present invention relates to a medical head device that can be worn on a subject's cranium while supporting an ultrasonic transducer. The head device according to an embodiment of the present invention can make the ultrasonic transducer adhere to the subject's cranium and support the subject's cranium regardless of the size and shape of the subject's cranium, and the position of the brain where ultrasonic waves need to be transmitted. The above-mentioned medical head device can move the transducer supported by the head device to a specific position of the cranium regardless of the position of the brain where ultrasonic waves need to be transmitted, thereby improving user convenience.