75 results about "Mastoid process" patented technology

The invention comprises a surgically implantable hearing aid for hearing impaired persons. The hearing aid includes a vibrational element which is vibrated by sound waves and attached to the skull of the person, and a connector which crosses the mastoid cavity and delivers the sound waves to the dura mater of the human being thereby vibrating the dura mater, the cerebrospinal fluids, and the brain to create a hearing percept. The invention can also be adapted to act as a tinnitus masker or used in conjunction with a cochlear implant. It can also be used in a modified form to connect directly through the skull of the human being.

A hearing device (FIG. 1, FIG. 2, FIG. 3) that simultaneously generates both air and bone conduction sounds. The vibrator (6) placed on mastoid bone can effectively produce enhanced bass sound effects.This hearing device can be used for an hearing impaired person.

Provided are bone conducting hearing devices having a normal force that secures the device to a user. A removable adhesive anchor secures an external component of the bone conducting hearing device to the user and provides reliable connecting that is comfortable, such as by a substantially uniform force generation over the contact area between the device and the user. Because the adhesive anchor is removable, a user can readily and reliably remove the device or connect the device, as desired. Also provide are methods of connecting any of the bone conducting hearing devices provided herein to a user, including the mastoid process of the user.

The invention relates to an individuation minimal invasive vertebral pedicle screw entering navigation template and a preparation method of the navigation template. The preparation method of the navigation template includes: reconstituting a three-dimensional model of a target vertebra based on a medical image; conducting the screw entering porous channel virtual analysis design on the three-dimensional model and defining a screw entering porous channel; taking feature points from the three-dimensional model, designing a vertebral pedicle screw entering navigation template prototype and obtaining a navigation template which fully fits for the vertebral body through the Boolean calculation; and manufacturing the navigation template through 3D printing and other processing methods. The individuation minimal invasive vertebral pedicle screw entering navigation template closely fits for the mastoid process and the lamina arcus vertebrae, is high in stability, ensures accurate implanting of the vertebral pedicle screw, avoids direct contact with the spinous process, reduces peeling of the muscle ligament, realizes minimal invasion, is applicable to various situations such as the vertebral distortion and slipping and the rupture of the vertebral pedicle, prevents slipping and distortion during screw entering due to the arrangement of a finger pressing board, and is convenient to operate and low in the requirement for doctors, degreases the operation risk, improves the operation efficiency and reduces the operation cost further.

The invention relates to a method for preparing a hydrophobic coating by using a hot spraying technology. The coating has the anti-icing effect. The method comprises the following steps of: coating nano ceramic powder on the surface of micro metal or alloy powder by adopting a nano agglomeration coating technology to form composite powder, preparing the coating by using the composite powder as a raw material and adopting the hot spraying technology, and forming a micro and nano composite 'mastoid process' structure on the surface of the coating so as to improve the hydrophobic effect of the coating. The method is simple in process and high in coating preparation efficiency, can be widely applied in the industries of aviation, printing, automobiles, power and the like, and plays a hydrophobic and anti-icing role.

Physiological sign monitoring devices, and systems and computer-implemented methods of remote physiological monitoring of subjects. A monitoring device includes a plurality of physiological sign monitoring portions. Each physiological sign monitoring portion of the device is configured for deployment on a different, respective surface of a subject including a surface on the back of an ear of the subject, a surface over a mastoid region of the neck of the subject, and a surface over another region of the neck of the subject. Each physiological sign monitoring portion of the device includes a plurality of physiological sensors, where each sensor is configured to generate a respective electronic signal based on a respective monitored physiological parameter of the subject. At least one physiological sensor in each physiological sign monitoring portion of the device is configured to generate a respective electronic signal based on the same monitored physiological parameter of the subject.

A cranial remodeling orthosis is shaped to extend across the top of the head with depending regions closely confining the temporal bone regions and the mastoid process regions of the cranium. The orthosis is self-suspending and preferably includes an elastic band for imparting ear-to-ear rigidity to the device.

The invention discloses a bionic anti-sticking surface and a preparation method thereof. The bionic anti-sticking surface imitates a super-hydrophobic micro ''mastoid process'' structure of the lotusleaf surface. The preparation method of the bionic anti-sticking surface comprises the following steps that (1) grinding and polishing are carried out on a high-speed steel sample piece to remove a surface oxidation layer and guarantee the flatness; (2) surface oil contamination is removed by using an organic solvent; (3) etching is carried out on a steel piece by using a nanosecond laser, and themicro ''mastoid process'' structure with regular array is formed; (4) an oxidation layer formed by etching of the steel piece is removed by using an acidic rust remover; and (5) the steel piece is placed into a mixing solution of fluoroalkyl silane and ethyl alcohol for reaction for a period of time, and the anti-sticking surface is obtained after drying. The preparation method of the bionic anti-sticking surface is simple, has high operability and good anti-resin sticking capacity is achieved, and can be applied to a cutter, mould surface and other anti-sticking liquid sticking occasions inthe production process of carbon fiber / epoxy resin prepreg.

The invention provides an otolith vibration therapy instrument, and discloses a tool for treating cupulolithiasis of benign positional paroxysmal vertigo. The benign positional paroxysmal vertigo includes canalithiasis and the cupulolithiasis. Multiple existing methods can effectively treat the canalithiasis, but the method for effectively treating the cupulolithiasis does not exist. The otolith vibration therapy instrument is designed according to the existing study theory and clinical practice experience of the cupulolithiasis. The otolith vibration therapy instrument has the advantages that according to the characteristics of dissecting of cranial bones of human body, a mastoid process is used as a part which is in contact with the human body in the therapy process; during therapy, the vibration therapy frequency is continuously switched between low frequency and high frequency through electrodeless adjusting, so the otolith adhered to the cupula of ampullary crest is promoted to fall down.

A forward head position correction collar is provided which in combination includes a shoulder collar assembly, a chin mastoid piece for engaging and positioning the head of a wearer of the collar; and interconnecting means for interconnecting the chin piece to the collar assembly as to enable the chin piece to be manually and preferably incrementally adjustable with respect to the shoulder collar assembly in a Z-direction to thereby adjust the supported head of the wearer from the forward head position to an increasingly corrected position. The interconnecting means is further adapted for displacing the chin-mastoid piece in a vertical direction with respect to the shoulder collar assembly simultaneously with and proportional to the incremental adjustment of the chin-mastoid piece along the Z-axis. The proportional vertical displacement with respect to the z axis displacement for the chin-mastoid support piece is that yielded by a point moving at about a 10 to 25 degree slope with respect to the horizontal Z-axis. The correction collar may further include a lordosis correction assembly secured to the rear of the collar and engageable with the rear of the wearer for applying corrective forces to at least the cervical vertebrae of the wearer.

The invention provides an electrocerebral electrode. The electrode comprises a main body, reference electrodes, grounding electrodes and signal electrodes, wherein the main body comprises nose pads and a support, and can be worn on the head of a user; the hose pads can be worn basically symmetrically on the nose of a user, and the support can be worn behind ears of the user; the reference electrodes are arranged on one sides of the nose pads; the grounding electrodes are arranged on the other sides, opposite to the reference electrodes, of the nose pads; and the signal electrodes are arranged at tail ends of the support, and are contacted with mastoids behind the ears when the electrocerebral electrode is worn. The electrocerebral electrode is convenient and comfortable to wear, can be used for a long time, and does not influence normal lives.

The invention discloses a device for evoking a brain stem frequency following reaction through electrical stimulation and a verification method. The device comprises an evoking potential recorder, the triggering signal output end of the evoking potential recorder converts input single path of signals into two paths of signals through a signal converter to control a channel (1) and a channel (2) of a generator, and electrical stimulation signals in the channel (1) and the channel (2) are opposite in polarity; the channel (1) and the channel (2) are connected to a stimulation electrode through an electrical stimulation signal isolator; the positive pole of the stimulation electrode is used for placing a round window niche of a user, and the negative pole of the stimulation electrode is used for making subcutaneous contact with the osseous external auditory canal; the positive pole of the evoking potential recorder is used for being placed in the center of a connecting line of the binaural calvarium of the user, the negative pole of the evoking potential recorder is used for making subcutaneous contact with the opposite side mastoid process of the user, and a reference electrode of the evoking potential recorder is used for making subcutaneous contact with the nasal tip of the user; the evoking potential recorder is connected with a signal processing module. The device can successfully evoke the brain stem frequency following reaction for an animal with the auditory periphery injured.

The invention relates to the technical field of engineering bionics, in particular to a bionic dolphin skin based on a shape memory alloy artificial muscle. The bionic dolphin skin based on the shape memory alloy artificial muscle comprises a supporting base, a hardened conducting layer, a flexible resin layer, a flexible conducting layer, a smooth rubber layer and artificial muscle stretching and contraction units, wherein each artificial muscle stretching and contraction unit comprises a shape memory alloy artificial muscle spring, a traction head, a two-section type electric heating rod and a connecting lead. Compared with the prior art, the shape memory alloy artificial muscle is used for imitating elastic mastoid processes in a dolphin skin structure; the unique material characteristic of the shape memory alloy artificial muscle is used for achieving protrusion or pit type deformation of the bionic dolphin skin, wherein the unique material characteristic of the shape memory alloy artificial muscle is that the two-way memory effect is achieved through driving of the transformation temperature of the shape memory alloy artificial muscle; the flexible working mechanism of the bionic dolphin skin is more sensitive and controllable, and a beneficial example is provided for development of the engineering bionics technology and especially the bionic anti-drag epidermis manufacturing technology in the aspect of the structural and functional bionics.

A brainstem audition evoked potential description and record device stimulated by two ears alternatively, connected and expanded with computer, trigger generator and two-way single ear testing treating unit, the computer and trigger generator generate trigger pulse of 40ms interval and apply to the impulse stimulation in two way, and emit voice stimulation of certain form by voice stimulating generator. The two pair electrodes cross-equipped in lateral mastoid process and contra-lateral temple introduces the brainstem responding signal out, and delivers to computer for treatment after the signal being enlarged by magnifier and A / D conversion. The two-way detecting passage work with the same principle, but a pulse delayer is equipped between the trigger pulse generator and pulse stimulating generator in one way, which make the trigger pulse be delayed for 20ms. The invention alternatively stimulates through two-way signal the brainstem audition, and can detect the brainstem evoked potential of two ears simultaneously, solving the paradox between detecting time and accuracy, and cost is low and structure is simple.

The present invention discloses a reciprocating type foot massage device which can promote the blood circulation of feet so as to achieve the effect of feet treatment and health care by a way that a plurality of massage wheels conduct a reciprocal arcus rising movement at the planta pedis. The device comprises a motor and a massage part situated in a hole of a support plate. Two groups of symmetrical motion control parts are arranged beneath the support plate. Each motion control part is composed of a wheel disk on the shaft of the motor, a pin at an eccentric position on the wheel disk, a connecting rod and a rocking beam connected in turn. The connecting rod is connected to the middle of the rocking beam. A massage wheel is arranged at the upper end of the rocking beam. Each group of motion control parts comprise 2˜3 kits, and are distributed laterally in parallel. The width of the distributed area of each group of motion control parts is 5˜10 cm. The eccentric distances of the pins on each group of wheel disks increment in turn laterally. Each group of rocking beams increment laterally. The massage wheels adopt an elastic material. On the surface of the massage wheel is arranged a mastoid process, a heating device, a medicine underlayer or a magnetic material.

A regulating component of a one-time circumcising anastomat is composed of a rivet, a regulating spring, a prepuce regulating mastoid process, a prepuce incising mastoid process, a rivet channel, a spring channel, a spring seat, a rivet mastoid process seat, a regulating component wall and a rivet expanding notch. An upper anastomat is designed to be composed of two irregular semi-circle rings, one end of the upper anastomat composed of the two semi-circle rings is connected through a connection component, wherein the end of the upper anastomat is provided with a frenum, and the other end of the upper anastomat is connected through a regulating component under the action of the rivet and the regulating spring. The regulating component is placed on the outside back face of the upper anastomat provided with the two semi-circle rings, namely, the regulating component is placed on two sides of the opening end. The regulating component is provided with the regulating component wall, the rivet channel, the spring channel, the spring seat, the rivet mastoid process seat and the rivet expanding notch. The regulating component of the one-time circumcising anastomat is simple in structure, convenient to operate, the loop is incised without pain, and a patient can accept the treament easily. The regulating component of the one-time circumcising anastomat is suitable for implementing circumcision on people at different ages especially for old people, children and patients with short frenum.

The invention belongs to the technical field of medical apparatuses and instruments, and specifically relates to a low-frequency vibration source and mastoid process coupling device for treating peripheral vertigo. The device comprises an aluminum groove for fixing a spherical polarizing DC motor, a cover housing, a micro radiating fan, a micro temperature sensor, a temperature controller for recognizing a signal of a micro temperature sensor in the aluminum groove, a power supply for locking a vibration source by using the polarizing DC motor as the load, a head sleeve for coupling the aluminum groove and the mastoid process, and an adjusting accessory, wherein the micro radiating fan and the micro temperature sensor are embedded into the aluminum groove. When in use, the mastoid process skin is targeted toward the vestibule, low-frequency vibration is launched non-invasively to induce vestibule to reach shear stress; the surface temperature of the vibration source is controlled; each treatment lasts for 30 minutes; the surface temperature of the aluminum groove cannot exceed 50 DEG C. The device is suitable for various patients suffering from peripheral vertigo.

The invention discloses a novel material with a hydrophobic function and a preparation technology of the novel material. The surface of the novel material is of a bionic structure of a lotus leaf. The novel material comprises a substrate layer, a microcellular foamed modified adhesive layer and a wax-containing layer from bottom to top, wherein the microcellular foamed modified adhesive layer is coated with the wax-containing layer in a dispersion manner. The preparation method comprises the following steps: firstly, while the adhesive layer is prepared, sufficiently mixing raw materials of the adhesive layer with a dispersing agent and a foaming agent, coating the surface of a substrate, implementing a coating foaming process so as to obtain a modified substrate, and finally coating the outer surface of the modified substrate with wax in the dispersing manner, thereby obtaining the novel material. The rough structure on the surface of the novel material disclosed by the invention is generally similar to mastoid process of a micro-nano structure on the rough surface of the lotus leaf and the structure of a hydrophobic wax material on the surface, and a lotus leaf bionic structure is achieved, so that a good hydrophobic function can be achieved.

Left and right curved discs may be attached to distal end portions of the left and right temple frames of an eyeglass. The left and right curved discs are positionable at a slight depression covered by skin above a mastoid process of the wearer's head and behind the wearer's ears for securing the eyeglass to the wearer. When not in use, the left and right curved discs may be hooked onto the wearer's ears for temporarily storing the eyeglass.

The invention relates to the technical field of medical equipment, in particular to a disassembly type double-side type percutaneous individualized pedicle screw guiding template. The guiding template is provided with a positioning mechanism, a cross connection part, a screw guiding pipe and a screw guiding hole; the screw guiding hole is formed in the cross connection part and penetrates the cross connection part from top to bottom, is communicated with the screw guiding pipe and is contained in the screw guiding pipe; the positioning mechanism is provided with a mastoid process positioning mechanism and an appendage positioning mechanism, and the mastoid process positioning mechanism and the appendage positioning mechanism are totally attached to the mastoid process and the appendage of the thoracolumbar vertebra needed for simulation before an operation respectively in the aspect of form; the cross connection part is composed of a left cross connection part body and a right cross connection part body; a clamping block is arranged at one end of the left cross connection part body; a clamping groove is formed in one end of the right cross connection part body; in use, the clamping block is inserted in the clamping groove so that the left cross connection part body and the right cross connection part body can be connected into a whole; the screw guiding pipe is connected with the left cross connection part body and the right cross connection part body, and the cross connection part and the positioning mechanism are connected into a whole. The structure is simple, operation is convenient, cost is low, operating difficulty is reduced, operation time is shortened, and the disassembly type double-side type percutaneous individualized pedicle screw guiding template is particularly suitable for being applied to a minimally-invasive pedicle screw internal fixation operation.

A speech synthesis device detects beta peak firings corresponding to intended vocalizations by a subject having a scalp, a mastoid process and a speech motor cortex. A EEG electrode and a negative electrode are disposed on the scalp of the subject adjacent to the speech motor cortex. A transmitter is electrically coupled to the electrodes, and is configured to transmit wirelessly electronic representations of the neural potentials detected by the electrodes. A remote unit receives the electronic representations of the neural potentials from the transmitter. The remote unit is programmed to: detect beta peaks firings in the neural potentials; correlate the beta peaks firings with beta peaks associated with phonemes, words and phrases; and generate audible representations of the phonemes, words and phrases.

The invention discloses prosthesis of a posterior wall of an external auditory canal, comprising a stent of the posterior wall of the external auditory canal. The stent is curved prosthesis, the thickness of which can be adjusted according to the requirements; the radian of the stent just inosculates the residual anterior wall, upper wall and lower wall of the external auditory canal after open mastoidectomy, thus forming the complete external auditory canal. The prosthesis of the invention can be used for reconstructing the external auditory canal in the open mastoidectomy or any other surgeries requiring external auditory canal reconstruction, thus recovering / imitating the shapes and functions of the external auditory canal and mastoid.

The invention discloses an electroencephalogram signal acquisition device and method. According to the method, the acquisition electrodes are adhered onto the middle of a forehead, the left side or the right side of the forehead and a mastoid bone behind an ear on the same side of the left or the right side of the forehead, the acquisition electrode of the left side and the forehead serves as a reference electrode, a constant alternating-current signal is inputted onto the skin through the reference electrode, impedance among the other two acquisition electrodes and the reference electrode iscalculated, the impedance is detected by a time sharing method, electroencephalogram signals are acquired by a time sharing method, contact states among the acquisition electrodes and the skin are monitored in real time, close contact among the acquisition electrodes and the skin is ensured, acquisition accuracy of the electroencephalogram signal is improved, interference signals are filtered outby the aid of a second-order low-pass filtering circuit, interference signals of the electroencephalogram signals are removed, and follow-up processing of the electroencephalogram signals is guaranteed.

A forward head position correction collar is provided which includes a shoulder collar assembly, a chin mastoid piece for engaging and positioning the head of a wearer of the collar; a cheek or jaw piece for engaging and positioning the head of a wearer; and interconnecting means for interconnecting the chin piece to the collar assembly as to enable the chin piece to be manually and preferably incrementally adjustable with respect to the shoulder collar assembly in a Z-direction to thereby adjust the supported head of the wearer from the forward head position to an increasingly corrected position. The interconnecting means is further adapted for displacing the chin-mastoid piece in a vertical direction with respect to the shoulder collar assembly simultaneously with and proportional to the incremental adjustment of the chin-mastoid piece along the Z-axis. The proportional vertical displacement with respect to the z axis displacement for the chin-mastoid support piece is that yielded by a point moving at about a 5 to 25 degree slope with respect to the horizontal Z-axis. The correction collar may further include a lordosis correction assembly secured to the rear of the collar and engageable with the rear of the wearer for applying corrective forces to at least one or more of the cervical vertebrae of the wearer.

The invention belongs to the technical field of medical equipment, in particular to an inner ear low-frequency shear stress vibrator for treating Meniere's disease. So far, the principle of endolymphatic shunt for treating the Meniere's disease is that the endolymph is manually opened to replace the non-functional endolymphatic sac in order to ease endolymphatic hydrops. However, the therapeutic theory is challenged by a clinical research specifically designed by Denmark. The invention designs the vibrator which carries out non-invasive low-frequency shear stress on an inner ear via mastoid process skin, and determines a release method and parameters. The clinical application of the vibrator can remove the pain of patients with Meniere's disease receiving treatment in operations, eliminate any risk in operative treatment and remarkably reduce medical cost, thus benefiting the patients and the society.

Disclosed herein is an adjustable mastoid dressing that is adjustable to provide a secure fit of a mastoid portion to a patient's skull. The adjustable mastoid dressing includes an adjustable upper band and an adjustable lower band that together compress the mastoid region. The upper band and lower band include posterior portions that optimally engage the patient's occipital bone when tightened via manually operable tension adjusters.

The invention discloses a vestibular function detecting device based on vestibular electrical stimulation and head movement tracking. The vestibular function detecting device based on vestibular electrical stimulation and head movement tracking comprises a vestibular electrical stimulation device, a head posture detecting device and a control computer. The non-invasive vestibular detecting device can be provided, the comfort level of a detected person is improved, the vestibular detecting device is coupled with the forehead, the left and right temples or mastoid processes behind the ears through electrode plates to achieve connection between the current and the human body, and the detecting device is used for changing the input signals of the semicircular canals of the vestibular organ and the otolith. The head posture detecting device detects the posture changes of the detected person through a three-dimensional posture sensor fixed to a helmet, achieves linkage of the control computer through a Bluetooth device, and is used for detecting the head posture changes. The control computer is used for controlling the simulation current type, intensity and time of the vestibular electrical stimulation device, receiving and processing data of the three-dimensional posture sensor in the head posture detecting device, and displaying related parameters in real time. By matched use of the above devices, the head posture changes caused by vestibular electrical stimulation can be detected, and the device can be used for detection, selection training and research of the vestibular function.