47 results about "Otolith" patented technology

The utility model relates to the technical field of medical equipment, in particular to an otolithiasis resetting device. Comprising a connecting base, a lower body plate fixedly connected to the connecting base, a back plate hinged to the lower body plate, a control groove formed in the back plate, a helmet fixedly installed on a head plate and a control mechanism arranged in the control groove and used for controlling the head plate to rotate. The control mechanism comprises a base plate fixedly installed in the control groove, a rotating block rotationally installed on the control block, a control rod rotationally installed in the rotating block, connecting blocks fixedly installed on the two sides of the control rod and second electric push rods fixedly installed on the connecting blocks. The control rod rotates in the steering ring, the steering ring ascends and descends, the fixing plates rotate to drive the device and a patient to rotate by 360 degrees, and the device rotates by 360 degrees between the fixing plates, so that accurate positioning, quantitative and constant-speed diagnosis and treatment and resetting are achieved, and the otolithiasis treatment effect is improved.

The invention relates to the technical field of otolith sample preparation, in particular to a freshwater fish otolith sample preparation method which comprises the following steps: 1, sampling otolith; 2, otolith cleaning; 3, weighing the otolith; 4, fixing the otolith; 5, vacuumizing and hardening; 6, cutting the otolith; 7, fixing and cutting for the second time; 8, otolith polishing; 9, polishing the otolith; 10, otolith dyeing. According to the method, the freshwater fish otolith sample can be well prepared.

The invention belongs to the technical field of fish ecology, and particularly relates to a nude carp otolith embedding method based on a longitudinal section and a preparation method and application of an otolith grinding sheet. The epoxy resin and the curing agent are mixed according to a certain mass ratio and then placed on the vegetable parchment to embed the longitudinal section of the naked carp otolith, the vegetable parchment is resistant to high temperature and high in strength and is not prone to deformation caused by high temperature, and the cured embedding piece is easily separated from the vegetable parchment; the embedding agent is low in shrinkage rate after being cured, the otolith is not prone to fracture, the hardness requirement of subsequent grinding can be met, adhesion is high, degumming is avoided in the subsequent grinding process, and fragmentation of the naked carp otolith is effectively avoided. According to the method, the embedding piece polished for the first time is immediately immersed in water, oxidation of the polished surface of the otolith can be prevented, subsequent polishing is continued, and the otolith grinding piece with clear wheel lines is obtained. The method is simple in operation process, does not need to use a high-cost and low-efficiency embedding mold, reduces the preparation cost, and improves the preparation efficiency.

The invention provides a method for identifying artificially enhanced and released schizothorax brachypoda, which comprises the following steps of: picking micro otolith of the schizothorax brachypoda, polishing, and identifying the artificially enhanced and released schizothorax brachypoda and wild schizothorax brachypoda by comparing the difference between the definition and the width of an otolith growth wheel. The method has the advantages of fast experiment, simple operation and visual identification.

The invention discloses a heart rate regulation and control device, method and system based on light-operated otolith oscillation, and relates to the field of heart rate control. The scanning optical tweezers system comprises a laser scanning light path, an imaging light path, an illumination light path and an electric objective table; the laser scanning light path is used for generating a high-speed scanning optical potential well at the otolith of a target living body; the imaging light path comprises a high-magnification inverted objective lens imaging light path and a low-magnification bypass imaging light path which are respectively used for real-time image acquisition of a target living body and heart state monitoring of the target living body; a first illumination light path in the illumination light paths is used for illuminating an imaging view field of a target living body on the electric objective table, and a second illumination light path is used for exciting the target living body to generate a calcium ion fluorescence signal; the electric objective table is used for bearing a target living body, and the position of the target living body is moved through displacement control of the objective table. The heartbeat rhythm can be accurately regulated and controlled.

The invention discloses a fish spawning site position calculation method based on otolith microchemistry and river micronization landscape atlas, which comprises the following steps: otolith and water body sample pretreatment: taking out an otolith sample from a sample tube for slice preparation, and preparing a standard solution by using the water body sample; experimental analysis: measuring trace chemical elements, namely Sr, Ba, Mn, Mg and Ca, of otolith; data analysis: drawing a river micronized landscape map, constructing a mixed effect model to calculate otolith trace element values, constructing a random forest model based on the otolith trace element values, and performing spawning site position calculation on fish otolith core microchemistry; according to the method, a brand new biogeochemical framework is constructed, and the spawning site position of the fish is accurately calculated by combining otolith microchemistry, a river micronization landscape map and a machine learning technology.

The invention discloses a strontium element concentration gradient-based coreius guichenoti fry otolith marking method and application, and belongs to the technical field of enhancement and release marking. The method comprises the following steps: adding strontium chloride hexahydrate (SrCl2. 6H2O) into a coreius guichenoti fry culture water body, setting a strontium concentration gradient of 20 mg / L to 640 mg / L, and continuously soaking for 2 days to realize strontium element labeling of the fry otolith. The method adopts a soaking technology, has the advantages of low cost, mass production, simplicity and convenience in operation, no damage to fish fries and the like, and effectively overcomes the technical bottlenecks that fluorescence labeling is easy to attenuate, multiple batches cannot be distinguished, and genetic labeling operation is complicated. By adjusting the strontium concentration gradient, element fingerprints (such as marginal region wave crests and Sr content gradient changes) with significant differences can be formed in the otolith, so that different release batches are accurately distinguished, and reliable technical support is provided for different batch resource tracking, survival rate evaluation, release strategy optimization and the like after enhancement and release.

The invention discloses an auxiliary reduction instrument for otolithiasis. The auxiliary reduction instrument comprises a head fixing assembly, an adjusting device and a simulation device, the angle of the simulation device is adjusted through the adjusting device to simulate the position relation of the semicircular canal of the human body in the brain; the position of the internal otolith can be actually simulated through an external simulation structure, so that medical staff can visually see the condition of the internal otolith, and reduction treatment can be directly carried out conveniently. Meanwhile, magnet blocks are arranged on the supporting blocks, magnetic balls are arranged on the temporal portions of the front tube, the rear tube and the horizontal tube respectively, otolith in the semicircular canal of the human body is simulated through the magnetic balls, meanwhile, the magnet blocks and the magnetic balls are arranged at different positions, and different magnetic balls can be released through the magnet blocks at different positions; therefore, the positions of the otolith falling into semicircular canals at different positions are simulated, and a patient is treated through external simulation; the problem of external observation and treatment of internal otolith can be achieved.

Presented herein are techniques for electrically stimulating a recipient's vestibular nerve in order to mask vestibular noise signals (vestibular noise) generated by the peripheral vestibular system (e.g., prevent erroneous balance information generated by the peripheral vestibular system from being sent to the brain of the recipient). A vestibular nerve stimulator in accordance with embodiments presented herein includes a plurality of electrodes implanted in an inner ear of a recipient at a location that is adjacent to the otolith organs of the inner ear. The vestibular nerve stimulator is configured to generate one or more continuous pulse trains and to deliver the one or more continuous pulse trains to the inferior branch of the recipient's vestibular nerve.

The invention provides an otolith shape detection and identification method based on machine learning, and relates to the technical field of otolith detection, and the method comprises the steps: S101, obtaining an original otolith image, and carrying out the preprocessing of the original otolith image; s102, the user marks a core reference line on the original otolith image; s103, forming an ROI region along the core reference line, and performing feature extraction on the ROI region to obtain ROI region features; s104, constructing a wheel pattern recognition model, providing prior constraints for the wheel pattern recognition model by using an environment-wheel pattern association rule, inputting the ROI region features into the wheel pattern recognition model, and outputting wheel pattern position information and wheel pattern number information; and S105, visualizing the position information of the wheel ripples and the number information of the wheel ripples. According to the method, the otolith ring pattern recognition efficiency and accuracy can be improved, reliable data support can be provided for fish population dynamic monitoring, fishery resource evaluation and ecological environment research, and the application range is wide.

The utility model discloses an inner ear model and a head model, which comprise an elliptical bag model and at least one semicircular canal model arranged on the outer side of the elliptical bag model, and an otolith model throwing device is arranged at the upper end of the elliptical bag model. The otolith model putting device comprises a putting base communicated with the semicircular canal model and further comprises a putting tail end movably connected with the putting base, and a putting opening is formed in the surface of the putting tail end. According to the utility model, the efficiency and accuracy of otolith model putting in the treatment and medical teaching process are improved, and the efficiency and accuracy of patient treatment and medical teaching are improved.

The utility model provides an otolith reduction model and an otolith reduction device. The otolith reduction model comprises a semicircular canal, an otolith, a guide piece and a limiting piece. The semicircular canal comprises a main body and an ampulla, the main body and the ampulla are tubular, the main body is provided with a first containing cavity, the ampulla is provided with a second containing cavity, and the first containing cavity is communicated with the second containing cavity. The otolith can be located in the first containing cavity or the second containing cavity, the guiding piece is connected with the semicircular canal, the limiting piece is movably connected with the guiding piece, and the limiting piece can be located at a first position or a second position relative to the guiding piece. If the limiting piece is located at the first position, the limiting piece can magnetically attract the otolith located in the second containing cavity so that the otolith can be limited in the second containing cavity, and if the limiting piece is located at the second position, the otolith can move between the first containing cavity and the second containing cavity. According to the otolith reduction model and the otolith reduction device, the treatment success rate and the treatment efficiency of otolith vertigo can be improved, and the treatment experience of a patient is good.

The invention relates to a Pseudosciaena crocea geographical population identification method combining otolith and morphological measurement. The method comprises the following steps: obtaining a Pseudosciaena crocea sample to be identified; obtaining morphological measurement data; performing first standardization processing on the morphological measurement data to obtain standardized morphological measurement data, inputting the standardized morphological measurement data into a pre-established morphological discrimination model, and outputting a first discrimination result through the morphological discrimination model; acquiring sagittal stone of the large yellow croaker sample to be identified; obtaining landmark point distance measurement data based on a preset otolith landmark point through sagittal otolith; performing second standardization processing on the landmark point distance measurement data to obtain standardized landmark point distance measurement data, inputting the standardized landmark point distance measurement data into a pre-established otolith discrimination model, and outputting a second discrimination result through the otolith discrimination model; and performing final identification based on the first judgment result and the second judgment result. The method can accurately, simply and conveniently identify three geographical populations of the Larimichthys crocea sal ammoniac family, the Fujian eastern Guangdong family and the Dai-qu family in batches.

The invention discloses a schizothorax fish identification method, device and equipment, a medium and a product, and relates to the technical field of aquatic wild animal protection. The method comprises the following steps: acquiring otolith images of various schizothorax fishes in different water areas; extracting an otolith contour from each otolith image; determining an elliptic Fourier coefficient and a discrete wavelet coefficient of each otolith contour, and standardizing the elliptic Fourier coefficient and the discrete wavelet coefficient; according to the standardized elliptic Fourier coefficient and the standardized discrete wavelet coefficient, reconstructing an otolith contour of each type of schizothorax fish; according to the reconstructed otolith contour of each type of schizothorax fish, obtaining otolith morphological characteristics of each type of schizothorax fish different from other schizothorax fish; and identifying the schizothorax fishes according to the otolith morphological characteristics of each schizothorax fish different from other schizothorax fishes. According to the method, the schizothorax fish can be quickly and efficiently distinguished.

The invention relates to a large-scale marking method for released small-specification fries based on fin ray strontium marking, which comprises the following steps of: in a fish fry breeding stage, performing strontium marking on the small-specification fries for several hours by increasing the concentration of strontium ions in seawater in a breeding pool, so that fish fin rays form a'high-strontium marking ring '; and after the marked fish is recaptured, cutting fin rays of the marked fish to detect the content of the strontium element. The method does not depend on otolith, is factory-like, is low in marking cost, and does not cause lethal injury to fishes during sampling.

The application discloses a kind of based on otolith resonance and artificial intelligence's Pseudosciaena crocea parent selective fishing method and system, comprising: the resonance frequency of otolith of different body length Pseudosciaena crocea is determined by experiment, and "body length-resonance frequency" mapping model is established;By analyzing the difference of otolith resonance frequency of different body length Pseudosciaena crocea, adjustable frequency acoustic signal is designed;According to adjustable frequency acoustic signal induction target parent fish, and through underwater acoustic sensor, optical sensor and environmental parameter detection, fish school dynamics and environmental noise are monitored in real time;Real-time analysis fish school feedback signal using deep learning model, identify fish length and distribution, optimize acoustic parameters;Combining acoustic induction and light induction technology, guide parent fish to concentrate in target area after starting mechanical net, complete fishing.The application realizes the efficient, selective fishing of Pseudosciaena crocea parent, significantly reduces the mis-capture rate of juvenile fish, improves fishing efficiency and parent survival rate.

The method and device for identifying large yellow croaker populations based on otolith carbon and oxygen stable isotopes provided in the present application belong to the field of fish population identification. The method provided in the present application determines the first target isotope through variance calculation and contribution analysis, and then identifies whether the large yellow croaker is farmed or wild. This method is more objective and accurate. Compared with traditional morphological or simple labeling methods, the differences in otolith carbon and oxygen stable isotopes affected by the environment and food sources can be used to more accurately divide populations and avoid misjudgments caused by factors such as small individual morphological differences or loss of labels. In a complex fishery market environment, it can effectively distinguish between farmed and wild large yellow croaker, which helps to regulate market order and protect wild fishery resources.

The present invention provides a fall risk indicator measuring device that can measure an index of the biological reflex response based on the sensing of changes in acceleration of the otolith organs of a subject, in relation to the risk of falling when the subject falls. [Solution] The fall risk index measuring device 1 comprises a ride section 10 on which a subject sits, a support device 20 that supports the ride section, a release device 22 that releases the support of the ride section by the support device and allows the ride section to fall freely, a handrail section 14 for the subject's fingers to grasp, a pressure sensor 15 that measures the pressure of the fingers, and a control unit 60. The control unit 60 comprises a first reaction measuring unit 61 that measures a first reaction time from the time of release by the release device to the time of reaching a first pressure, based on the finger pressure value measured by the pressure sensor.

The present invention relates to a group discrimination method based on concentric circle cutting semi-landmark points of fish otoliths, belonging to the technical field of fish otolith identification, the method adopts the intersection points of a series of concentric circles and otolith sulci and edges as landmark points, the outermost circle of the series of concentric circles is the longest diameter of the otolith as the diameter, and its radius is equally divided into 8 to 10 parts inside, the outermost concentric circles are constructed, the intersection points of the concentric circles and the otolith sulci and contours are selected, used as landmark points, and statistical analysis is performed. The method of the present invention divides the otoliths into concentric circle points, can increase the number of punctuation points, and improves the accuracy of discriminating fish groups through otoliths.

The present application discloses a heart rate control device, method, and system based on optically controlled otolith oscillations, relating to the field of heart rate control. The method includes a scanning optical tweezers system; the scanning optical tweezers system includes a laser scanning optical path, an imaging optical path, an illumination optical path, and a motorized stage; the laser scanning optical path is used to generate a high-speed scanning optical potential well at the otolith of a target living body; the imaging optical path includes an imaging optical path of a high-magnification inverted objective lens and a low-magnification side-branch imaging optical path, which are respectively used for real-time image acquisition of the target living body and for monitoring the cardiac state of the target living body; the first illumination optical path in the illumination optical path is used to illuminate the imaging field of the target living body on the motorized stage, and the second illumination optical path is used to excite the target living body to generate a calcium ion fluorescence signal; the motorized stage is used to carry the target living body and to move the position of the target living body through stage displacement control. The present application can precisely control the heartbeat rhythm.

The invention provides a novel method for preparing a fish otolith specimen, and belongs to the field of biological specimen preparation. Comprising the steps of specimen fixation, head skin dissection and segmentation, head muscle dissection and segmentation, head skeleton exposure and dissection, muscle dissection, dehydration, degreasing, polymer infiltration, fixation, solidification and the like. More importantly, the spatial position relation and the connection mode of the otolith, the skull, the brain, the nerve and the muscle system are displayed in situ. The otolith can be processed in a non-destructive mode, the otolith can be taken out or put back, the flexible display effect that the same specimen can display the details of the otolith and can also display overall dissection association is achieved, and the teaching and scientific research value of the specimen is greatly improved.

The invention provides an otolith repositioning and treatment device for people with limited mobility; the device comprises a base, a circumferential flip assembly, a horizontal rotation assembly, a treatment bed and a head assembly; the flip shaft of the circumferential flip assembly is supported on the base, the flip shaft is driven by a flip motor, and the end of the flip shaft is fixedly connected to a flip bracket; the rotating shaft of the horizontal rotation assembly is supported on the flip bracket, the rotating shaft is driven by a rotation motor, and the end of the rotating shaft is fixedly connected to a mounting plate; the lower body of the treatment bed is fixedly connected to the mounting plate, and the end of the upper body is hinged to the beginning of the lower body through a first rotating shaft; the swing shaft of the head assembly is fixed to the swing bracket, the swing bracket is hinged to the beginning of the upper body through the swing shaft, the swing motor drives the swing shaft, and the headrest is arranged on the swing bracket. The treatment device is used to replace the patient to complete treatment actions such as turning the head and turning over, so as to achieve the purpose of using the Epley method to treat posterior semicircular canal BPPV and using the Barbecue method to treat lateral semicircular canal BPPV.

The invention provides a method and a device for identifying a large yellow croaker group based on otolith carbon-oxygen stable isotope, and belongs to the field of fish group identification. According to the method provided by the invention, the first target isotope is determined through variance calculation and contribution degree analysis, so that whether the large yellow croaker is cultured or wild is identified, and the method is more objective and accurate. Compared with a traditional morphology or simple marking method, the method has the advantages that the groups can be more accurately divided by utilizing the difference generated by the otolith carbon-oxygen stable isotope influenced by the environment and food sources, misjudgment caused by factors such as small individual morphological difference or marker loss is avoided, and in the complex fishery market environment, the method is more accurate and reliable. Breeding and wild pseudosciaena crocea can be effectively distinguished, the market order can be standardized, and wild fishery resources are protected.

The utility model provides an otolithiasis semicircular canal three-dimensional model, which relates to the technical field of medical models, and comprises a base, a pillar is fixedly connected above the base, the end part of the pillar is rotatably connected with a model arc frame, and the inside of the model arc frame is rotatably connected with a simulation head model through a fulcrum shaft. The simulation semicircular canal model is fixed outside the simulation head model in a popular and easy-to-understand manner, so that the inclination angle of the simulation semicircular canal model is consistent with the inclination angle of the semicircular canal in a human body, understanding of a patient is facilitated, and the simulation semicircular canal model is filled with a glycerin solution for simulating internal lymph in the semicircular canal, so that the simulation head model can be used for simulating the internal lymph in the semicircular canal. Along with the inclination and rotation of the simulation head model, the movement track and path of the otolith crystal model in the simulation semicircular canal model in the internal lymph can be observed, and the problem that a patient cannot clearly understand the treatment process of otolithiasis due to the fact that the patient cannot easily understand the structure of the patient and the relation between the angle of the canal body model and the angle of the head of the human body is solved.

The invention discloses a method and device for analyzing the migration life history of coilia ectenes, and relates to the field of fish ecology. The otolith is subjected to embedding, grinding and polishing treatment, and the embedding, grinding and polishing treatment processes are improved, so that the efficiency and quality of the otolith grinding piece are improved; according to the method, the otolith mill is taken as a raw material, the element content of the otolith mill is measured through an analysis technology, an element distribution curve with smaller errors can be obtained more quickly and more accurately, then the migration life history of the coilia mystus is analyzed based on the element distribution curve, and a scientific basis is provided for breeding management of the coilia mystus and sustainable utilization of fishery resources. According to the method, the analysis efficiency is improved, errors are reduced, the coilia mystus migration life history research based on the otolith is more reliable, and important data are contributed to protection and development of fishery resources of coilia mystus.

A method of discriminative vestibular-evoked myogenic potential testing (VEMP) in a subject, comprising a first and second acoustic stimuli to the subject to selectively activate otolith afferents or to activate both canal and otolith afferents to provide a response.

The invention belongs to the field of intelligent medical assistance, and particularly relates to an otolithiasis self-resetting assistance system based on a position sensor, which comprises a sensor module, an image acquisition module, an intelligent resetting analysis module, a feedback interaction module and a central control module, according to the method, the otolith position, the head posture and the limb posture of the patient are combined, the head posture characteristics and the limb posture characteristics during otolith resetting are matched, the limb posture of the patient is guided, and the resetting efficiency is improved; according to the method, a state space model based on partition optimization is creatively adopted, and partition features of different partitions of human limbs are captured in a human body partition mode on the basis of comprehensive multi-direction limb posture dynamic feature analysis by combining channel division, segmentation and zero-order maintenance-based state space model processing; and the partition features and the overall features are fused and optimized based on a channel mechanism, so that complex limb feature recognition and accurate action guidance are realized, and accurate resetting is realized.

The invention relates to a quantitative analysis method for a fish otolith shape variation source, and belongs to the technical field of fishery resource evaluation and ecological morphological analysis. A matrix F is decomposed through a principal component analysis method, so that hierarchical redundancy analysis is carried out on a morphological matrix, and the fish otolith shape variation source is obtained. Modeling the relationship between the form matrix and different explanation matrixes, evaluating the significance of each variable by adopting replacement test, calculating a variance expansion factor to diagnose collinearity, forming a simplified model, and quantifying the independent contribution rate of the feeding habits to the otolith shape variation through variation division based on the simplified model. According to the method, through the mixed effect model and variance analysis, the mixed factors are effectively controlled, reliable quantitative estimation of the feeding habit influence is provided, and the scientific value of a research result is greatly improved. The method is not only suitable for various fishes, but also can be expanded to morphological ecology research of other biological characteristics, and a brand new research normal form and a powerful technical tool are provided for fish ecology and fishery resource management.

The present invention discloses a method, device, medium and product for acoustic attracting of Sciaenidae based on otolith resonance, and relates to the technical field of acoustic attracting. The method comprises: generating a single-frequency signal group according to an initial preset resonance frequency point group, generating an orthogonal Chirp signal group according to the hearing threshold frequency range of target fish, superimposing the two to synthesize an acoustic attracting signal, calculating a digital signal and a frequency band sound pressure level through the feeding sound and otolith resonance sound of the target fish, calculating an amplitude adjustment coefficient according to the frequency band sound pressure level, replacing the initial preset resonance frequency point group with a measured resonance frequency point group determined by the frequency domain information of the digital signal, regenerating a single-frequency signal group, superimposing the single-frequency signal group with the orthogonal Chirp signal group, using the amplitude adjustment coefficient to adjust the amplitude of the updated acoustic attracting signal after superposition, and transmitting the amplitude-adjusted signal to effectively induce the fish to forage at a designated location, thereby improving the stability of acoustic attracting.