90 results about "Otolith" patented technology

An optical-signal vestibular-nerve stimulation device and method that provides different nerve stimulation signals to a plurality of different vestibular nerves, including at least some of the three semicircular canal nerves and the two otolith organ nerves. In some embodiments, balance conditions of the person are sensed by the implanted device, and based on the sensed balance conditions, varying infrared (IR) nerve-stimulation signals are sent to a plurality of the different vestibular nerves.

An optical-signal vestibular-nerve stimulation device and method that provides different nerve stimulation signals to a plurality of different vestibular nerves, including at least some of the three semicircular canal nerves and the two otolith organ nerves. In some embodiments, balance conditions of the person are sensed by the implanted device or external device, and based on the sensed balance conditions, varying laser nerve-stimulation signals are sent to a plurality of the different vestibular nerves.

The invention provides a device for inducing a plurality of vestibular illusions. The device comprises a revolving chair device for changing the input signals of the semicircular canals of human body vestibular organs, a head shaking device for changing the input signals of the semicircular canals of the human body vestibular organs, a vestibular electrical stimulation device for changing the input signals of the semicircular canals of the human body vestibular organs and otolith, and a control computer for controlling the revolving speed and the revolving time of the revolving chair device, the shaking manner, the angular velocity and the shaking time of the head shaking device, and the type and the strength of the stimulating current and the stimulating time of the vestibular electrical stimulation device, and displaying related parameters in real time. According to the device for inducing the plurality of vestibular illusions, the devices are used independently or combined in use to effectively induce a plurality of vestibular illusions of a human body such as somatogyral illusion, coriolis illusion and somatogravie illusion; as a result, the device can be applied to the ground-based simulation of the vestibular illusions of pilots, and further can be applied to related training about the floor space disorientation of the pilots, and therefore, accidents caused by space disorientation can be reduced.

The invention relates to a preparation of mackerel otolith cross-sectional slices and a method for determining age thereof, the preparation of the cross-sectional slice comprises the following steps of: immersing, washing otolith, line-drawing, removing otolith, burning, embedding resin, incising, abrading, polishing and the like. Mackerel otolith slice is placed on a glass slide coated with dark blue coating, a few drops of glycerine is applied to cover the mackerel otolith slice below a CCD anatomical lens, interpretation is carried out on the rings under the irradiation of reflected light to determine the age of otolith. The invention realizes the clarity and visibility of winter ring and summer ring of mackerel otolith, avoids the interference of crystallization, solar disk and the summer ring on growth ring, enhances the color contrast between the winter ring and the summer ring, and facilitates the winter ring and the growth ring to be identified and interpreted, thus improving the precision for determining the age of mackerel; in addition, the slices of otolith can be preserved for a long time.

The present invention discloses a method for researching age and migration life history of coilia by eardust which belongs to the ichthyological ecology field. The method selects the eardust as researching material, processes grinding to an intersecting surface of the eardust, observes a micro-structure of the eardust for researching age, growth and life history of the coilia. Compared with traditional method, the method provides a new method for researching fish type annual zone, fills blank of unclear bright band and dark lane on the eardust to research fish type age; the eardust grinding has high efficiency, each eardust can be ground only five minutes, and the result is more reliable than other hard bone tissue analyzing; a nail enamel has transparent function to the eardust in embedding and enveloping simultaneity which is more safety and has better transparent effect than using dimethylbenzene. The method is suitable for researching relative age and migration life history of all hard bone fish type with eardust back and belly morphology curve.

The invention discloses a Schizothoracinae otolith slice production method, and relates to a fish otolith slice production method. A purpose of the present invention is to solve problems of single material use, complex operation, time consuming and difficult operation of the existing Schizothoracinae otolith slice production method. The production method of the present invention comprises: 1, removing otolith, 2, soaking the otolith, 3, washing the otolith, 4, fixing the otolith, 5, grinding the slice, and 6,sealing the slice to obtain the clear Schizothoracinae otolith slice capable of being stored for a long time. According to the present invention, the Schizothoracinae otolith slice production method is provided.

The invention relates to a method for grinding and protecting cephalopod otolith. The method comprises the steps of extraction, soaking, placing, resin embedding, cutting, fixing on a glass slide, abrading, polishing, preservation and the like. The method can solve the problems that the cephalopod otolith is small and not easily ground, the otolith is easily broken in the grinding process and thetextures are easy to fade after polishing; and the otolith textures can be kept for long time.

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.

The invention relates to the field of medical equipment, and provides an otolithiasis reset machine which comprises a rack, a chair, a first rotating device for driving the rack to rotate and a second rotating device for driving the chair to rotate relative to the rack, wherein the chair and the second rotating device are arranged at the inner side of the rack; the seat comprises a seat face and a back chair which are connected with each other; and the seat face is provided with a leg fixing part and a foot fixing part. The otolithiasis reset machine is capable of moving and adjusting the position of a human body to achieve the reset target; the inaccuracy of manual resetting is reduced; and the effective rate of resetting is improved. In addition, the invention further provides an otolithiasis medical instrument, which comprises vestibular function inspection equipment and the otolithiasis reset machine, wherein the vestibular function inspection equipment is connected with the otolithiasis reset machine. The otolithiasis medical instrument is capable of combining diagnosis and treatment into a whole; movement and adjustment of the position of the human body are simple; the inaccuracy of manual resetting is reduced; and the effective rate of resetting is improved.

The invention provides a fish branchiostegite marking method. The method comprises the following steps of: 1, selecting water with a pH value of 6.5-7.5, the temperature of 5-25 DEG C and the dissolved oxygen volume of 5-9mg/L as a solvent, and dissolving alizarin red into the solvent so as to prepare an alizarin red aqueous solution with the concentration of 50-200mg/L; 2, after air is inflated in the solution for 6 hours by using an inflator pump, putting fishes to be marked and soaking, and in the process of soaking, always carrying out air inflation operation; 3, enabling the depth of a soaking solution to be 20-50cm higher than the heights of the soaked fishes; 4, carrying out soaking for 12-18 hours, and enabling the soaking time to be inversely proportional to the concentration of the solution; and 5, putting marked fishes into a continuous-flow fishpond to culture for 3 months, wherein red spotted marks with the diameter of 0.2-1.0cm occur at fish branchiostegite. According to the method, the problems that an in-vitro marking method, otolith fluorescent marking and temperature marking and the like cause large damages on fishes, and the mark loss ratio is high are avoided.

The invention relates to a distinguishing method for coilia fishes population based on otolith morphology, and belongs to the technical field of aquatic wildlife protection. The method comprises: By collection, photographing, correction, database establishment and discriminant analysis, collecting coilia fish samples in different water areas; after sample collection, carrying the samples back to alaboratory, removing an otolith, and taking photos with a main groove surface facing upward; correcting an amplification factor of all photos according to an unified direction, so that all photos arein the unified direction and amplification factor; establishing a reference coordinate axis system and calculating coordinate point data files of contour end points of the otolith morphology and a main groove inflection point. The analysis method is reliable and has good precision. The method effectively distinguishes different species of coilia fishes, and effectively distinguishes different population of coilia fishes. In addition, an otolith morphological characteristic library and a discriminant function equation of each coilia fish can be established.

The invention relates to an otolith measurement and fish population discriminating method based on a polar coordinate, relates to the fish farming and management field and particularly relates to the method for distinguishing fish populations through measuring fish otolith. According to the method, a center point of an otolith picture is taken as a measurement reference point; end pointd, convex concave points or inflection points having prominent features in the otolith form are searched and taken as characteristic points; through establishing polar coordinates, the characteristic points and a core point are connected, radial length between the core point and each characteristic point is measured to acquire a set of characteristic length data; included angles of two adjacent connection lines are sequentially measured by utilizing the measurement software to acquire a set of characteristic angle data; on the basis of the characteristic length data and the characteristic angle data, a discrimination analysis method or a gray cluster analysis method is utilized, a population type of a detected sample is discriminated. Compared with a discriminating method through utilizing only the length, the otolith measurement and fish population discriminating method is advantaged in that the discrimination result is more accurate and reliable, and the fish population discrimination correct rate can be remarkably improved.

The invention discloses a manufacturing method and applications of an otolith cross section grinding sheet of a mandarin fish and belongs to the field of fish ecology. According to the manufacturing method, a sagitta serves as a research material, a cross section of the sagitta is subjected to sheet grinding, the manufactured otolith grinding sheet is placed under a microscope, the age can be identified and widths between rings can be measured through charge coupled device (CCD) software under the irradiation of incident light, ring distribution features of the otolith grinding sheet are observed, and then the age of the mandarin fish is identified. Compared with traditional identification methods, the method has the advantages that rings of the otolith of the mandarin fish are clear and visible, and an otolith nucleus is inclined towards one side of the otolith grinding sheet to form a linear nucleus area; a band area in which bright bands and dark bands are staggered is formed on the other side of the otolith starting from the otolith nucleus, bright bands are wide and are formed from spring to autumn, and dark bands are narrow and are formed in winter, so that annual rings are formed. By the aid of rings with alternating bright bands and dark bands, the age is distinguished and judged easily, so that the accuracy of identification of the age of the mandarin fish is greatly improved.

The invention relates to a simulation semicircular canal otolith total head model. The model comprises a head model, a fixation ring, semicircular canal rings used for simulating human semicircular canals, metal collars used for simulating otoliths and magnets. The semicircular canal rings are fixed on the head model according to the positional relationship of 3 pairs of human semicircular canals. Each semicircular canal ring is provided with a metal collar used for simulating the otoliths and a magnet used for fixing the metal collar. Each semicircular canal ring is made of a plastic material. According to another scheme, a transparent tube accommodating transparent liquid is used to simulate a human semicircular canal; a metal ball in the transparent tube is used to simulate an otolith; and the transparent tube is provided with a supporting part. The model provided by the invention simulates three pairs of human semicircular canals on both sides, can simulate all kinds of otolith disease symptoms, and can demonstrate a variety of reduction techniques.

The invention relates to an otolith daily increment labeling method for game fish, and relates to an otolith daily increment labeling method for fish. The invention solves the problems that: the prior labeling method takes time and labor, and has expensive labeling cost, harm to fish bodies and complex operation; and the label is easily lost and the labeling quantity is limited. The method comprises the following steps: controlling the water body temperature in the game fish incubation period so as to change the otolith daily increment appearance feature of the game fish and form an recognizable game fish otolith daily increment label; and setting the water body temperature in the incubation period 2 to 4 DEG C higher or lower than the normal water temperature in the game fish incubation period. The method has the advantages of time and labor reduction, safety, simple operation, lifelong reading, no harm to the fish bodies, and a large quantity of labels. According to the quantity and category of the labeled fish, the process and the method with different labeling spectrums are designed. The application of the method can reach 100 percent of colony labeling.

The invention relates to a method for manufacturing a section of a xenophysogobio boulengeri otolith for fish age determination. The otolith of xenophysogobio boulengeri is picked, soaked, fixed, baked, cooled, grinded, degummed and mounted, clear annulations appear on the otolith of the xenophysogobio boulengeri, and therefore the age of the xenophysogobio boulengeri is determined. The new method is provided for fish age study, and is suitable for the study of the age of teleostean with two sides of the otoliths thick.

The invention discloses a method for distinguishing between artificial breeding and natural breeding of Qinghai Lake naked carp by adopting otolith element fingerprint marks, comprising the following steps: (1) collection of control samples; (2) separation and treatment of otoliths; (3) otoliths Elemental analysis: the ratios of Li:Ca, Mn:Ca, Mg:Ca, Sr:Ca and Ba:Ca of each sample were obtained as analysis parameters; (4) Discriminant analysis: the distribution discriminant analysis of SPSS 22.0 was used to divide the The discriminant analysis of the analysis parameters and the analysis parameters of the control samples can determine whether the Qinghai Lake naked carp whose birthplace is unknown is artificially bred or naturally bred. Using this marker for discriminant analysis, the artificially bred naked carp in Qinghai Lake can be successfully distinguished from the anadromous Qinghai Lake naked carp population, and the discrimination accuracy rate is 100%.

A base section supports a revolution section. The revolution section supports a tilting section. The tilting section supports a seat section. The seat section includes a seat, a seat back and a step. The seat back has a restraining section. The restraining section includes an occipital region retainer and a temple retainer. Subject is seated with its occipital region and temples restrained by the restraining section. The head of subject is tilted on one side down from a head's horizontal plane in the Reid stereotaxic coordinate system to place one of left and right othlith organs within the head's horizontal plane. In this tilted position, different liner acceleration stimuli are applied to left and right otolith organs, respectively, for independent function tests of the left and right otolith organs.

The invention provides a method for constructing a saury otolith physiological state analyzing model. The method comprises the steps of extracting biological data of saury, numbering and storing otolith after extracting the otolith from a balance bag part in the head of the saury, photographing the otolith by utilizing a micro imaging system CCD, and measuring various form parameters of saury otolith by combining a microscope observation and photographing picture; carrying out main component form characteristic index clustering analysis on the form parameters by utilizing a gray constellation clustering method, obtaining main component form parameters, and obtaining a change mode of otolith growth speed; carrying out embedding, rough grinding and polishing treatment on the otolith; interpreting and counting annular ring grains of the polished otolith, photographing by using the CCD, and judging age data of the otolith according to an interpreting and counting result; analyzing the age data and the obtained biological data, and obtaining a growth equation. According to the method provided by the invention, the saury otolith physiological state can be accurately analyzed, and the method has the effect of scientific research standard.

The invention relates to the technical field of production place discrimination, in particular to a method for identifying a fish production area. The method comprises the following steps: selecting afish sample from a real production area; acquiring otolith and carrying out pretreatment; analyzing the element content and the carbon-oxygen isotope content; establishing a database according to theelement content and the carbon-oxygen isotope content; establishing a prediction model according to the established database data; selecting otolith of an unknown fish sample, and carrying out pretreatment; analyzing the element content and the carbon-oxygen stable isotope content of the unknown fish sample otolith; and substituting the data results of the element content and the carbon-oxygen stable isotope content of the unknown fish sample otolith into a prediction model, and outputting a producing area result. According to the method, the otolith is creatively adopted as a characterization object of the commercially available fish production area, an otolith carbon-oxygen stable isotope ratio detection method is adopted as a distinguishing characteristic source, the principle is clearer, the production area of the fish can be more accurately and reliably judged by matching the detection method, and universality and popularization are better achieved.

The invention relates to a method for marking fish otolith by fluorescent substances. According to the method, tetracycline hydrochloride is dissolved in water bodies, and marked solution of tetracycline hydrochloride solution is obtained; and fishes to be marked are put into the solution for soaking, and the marking of the fish otolith is completed. The tetracycline hydrochloride is adopted as the marking solution for soaking the fishes, the marking operation is completed, and the strong stress response damage and the fish body mechanical injury caused by artificial operation in the existing marking method are overcome; the investment of labor and materials is reduced; and the problem of high external hanging marker loss rate is solved. The method has the advantages that the cost performance is high, the operation is convenient, the soaking concentration and time can also be regulated according to different fishes, specifications and numbers, and the method belongs to a marking method capable of being applied to large-scale economic fish release.

The invention relates to the field of aquatic science, in particular to a method for measuring the age and individual growth of sthenoteuthis oualaniensis on the basis of the external form of otolith.According to the method, the age and individual growth of sthenoeuthis oualaniensis are measured by utilizing four appearance feature parameters including the total statolith length, maximum width, lateral dome length and wing length of the otolith of sthenoeuthis oualaniensis. According to the method, the research on the correlation between the age and individual growth of sthenoeuthis oualaniensis and the external form of the otolith is carried out, and a necessary basis is provided for utilizing the external form of the otolith to carry out basic biologic and ecologic research on cephalopods and resource quantity evaluation.