183 results about "Sperm" patented technology

Provided is a novel rotary and telescopic sperm extractor. including: a telescopic mechanism: a rotary mechanism mounted on the telescopic mechanism: and an inner container mounted on the rotary mechanism. where the rotary mechanism rotates while making a reciprocating telescopic motion along with the telescopic mechanism.

A sorting track for sorting living sperm includes a housing that defines at least two cubicles, an initial placement location, and a channel fluidly coupled to the at least two cubicles and the initial placement location such that the at least two cubicles each feature a unique set of cubicle characteristics, an extraction portal, and an entrance fluidly coupled to the channel. Cubicle characteristics may include one or more architectural characteristics selected from the group consisting of: a distance from the initial placement location, a cubicle shape, a cubicle volume, a cubicle position within the housing relative to the channel, an entrance size, and an entrance shape. Cubicle characteristics may also include stimulus characteristics selected from the group consisting of: a wavelength of light, a light intensity, a radioactive radiation intensity, an electromagnetic field, a chemical treatment, a pressure, a sound, and a temperature.

An intracytoplasmic sperm injection support device having a simple device configuration is provided. [Solution] An intracytoplasmic sperm injection support device 2 that supports intracytoplasmic sperm injection by injecting sperm held in a sperm injection tool 3 into an egg held by an egg holding device, comprising: an acquisition unit that acquires information including the relative positional relationship between the sperm injection tool 3 and the egg; and a control unit that controls the movement of a stage 11 on which the egg holding device is positioned to inject sperm into the egg and perform intracytoplasmic sperm injection, based on the information acquired by the acquisition unit.

The invention relates to a high-temperature-resistant saccharomyces cerevisiae strain and a construction method and application thereof in the field of microorganisms. The high-temperature-resistant saccharomyces cerevisiae strain disclosed by the invention is preserved in the China General Microbiological Culture Collection Center (CGMCC), the preservation number is CGMCC NO.27605, and the preservation name is SEB22. The SEB22 bacterial strain is obtained by knocking out an L-asparaginase II coding gene ASP3 and a high-expression transcription factor CRZ1 from an original bacterial strain SEB4. The glucose consumption rate, the ethanol yield and the yield of the SEB22 strain under high-temperature stress are obviously improved, and the SEB22 strain has good application potential in the aspect of high-temperature SSF fermentation.

The invention belongs to the technical field of modern agriculture, and particularly relates to a method for creating pseudo male trachinotus ovatus. According to the method for creating the pseudo male trachinotus ovatus, alpha-naphthoflavone and 17 alpha-methyltestosterone are used in a combined mode, feeding induction is started from the 2-month-old period, and finally sperms can be observed in sexual glands of the genetic female trachinotus ovatus in the 8-month-old period. According to the method, the sexual gland of the genetic female trachinotus ovatus (the sexual gland normally develops into an ovary) can be reversed into the testis, in the 8-month-old period, the observed reversal efficiency is 63.6%, compared with single use of alpha-naphthoflavone, the sexual reversal proportion is increased by more than one time, the number and maturity of sperms of the pseudo male trachinotus ovatus are remarkably increased, and the sexual efficiency of the trachinotus ovatus is improved. And the success rate of subsequent all-female golden pomfret creation is greatly improved.

The present technology relates to a systems for quantifying rheotaxis in a sperm-containing sample. The system includes a microfluidic system having an inlet for charging fluids into a passage. One or more probes defining a confinement region suitable for retaining motile sperm are within the passage. The system further comprises an image processing computing device for obtaining a sequence of images of the confinement region of at least one of the one or more probes having motile sperm retained therein. The sequence of images of the confinement region is processed to determine a signal intensity value for said sequence of images, wherein said signal intensity value is based on a concentration of the motile sperm located in the confinement region at the flow rate. A rheotaxis quality value is determined for said sperm-containing sample based on the signal intensity value. Methods for quantifying rheotaxis in a sperm-containing sample are also disclosed.

The invention relates to the field of distant hybridization breeding, and discloses an artificial breeding method for hybrid species of humpback perches and epinephelus fuscoguttatus, which comprises the following steps: selecting healthy humpback perches as female parent fishes, and screening healthy epinephelus fuscoguttatus as male parent fishes; carrying out intensive cultivation on the parents by means of nutrient enrichment and temperature regulation and control, and promoting synchronous development and maturation of gonads of the parents; after the parents reach the breeding state, eggs of the female parent fishes and seminal fluid of the male parent fishes are collected respectively, fertilized eggs are obtained through artificial insemination, incubation management such as temperature control and continuous oxygenation is conducted on the fertilized eggs, and finally hybrid grouper fries are obtained. The crossbreeding application of the humpback perch as the female parent and the epinephelus fuscoguttatus is realized, and the problems that in the traditional hybridization process, parent gonad development is asynchronous, and filial generations cannot develop are effectively solved; the bred hybrid provides technical guarantee for standardization and precision promotion of grouper crossbreeding, and creates favorable conditions for breeding new hybrid lines with excellent characters of parents.

The invention provides a preparation method and application of a high-activity salmon salmon sperm PDRN (DNA sodium) raw material. The preparation method comprises the following steps: crushing and freezing a salmon testis at an ultralow temperature, adding a mixed solution of a Tris-HCl buffer solution and sodium chloride, and dispersing at a low temperature; adding a compound enzyme preparation with the total enzyme activity of more than or equal to 350KU / L, and carrying out low-temperature appropriate pH enzymolysis; and adjusting the pH value to a suitable range, and carrying out frequency conversion ultrasonic and high-pressure homogenization alternate synergistic treatment in an ice-water bath to obtain the DNA fragmentation liquid, so that the defects of low PDRN activity retention rate, insufficient purity and high protein residue in the prior art are overcome.

The present application relates to the technical field of aided conception. Provided is a conception-aiding sheath, comprising a main rubber sheath and a glans portion, the main rubber sheath being cylindrical and having an opening at a lower end surface thereof, a rubber tightening ring being provided on an outer side of the opening, and the glans portion being located at the end of the main rubber sheath away from the opening and connected to the main rubber sheath via a fastening ring; and further comprising a sperm storage portion, which is made of rubber, is harder than the glans portion, and has a containment volume of 2 ml, wherein a sperm gathering ring is provided at a lower end of the sperm storage portion and is fixedly connected to the glans portion, the sperm storage portion is configured to temporarily store sperm, and the sperm gathering ring is configured to prevent sperm from overflowing to the glans portion; and holes are formed in an upper end surface of the sperm storage portion, nine holes are provided, and the holes are configured to constrict the semen flow stream to increase the pressure. The present application has the advantages of increasing the sperm flow velocity, shortening the contact time between sperm and acidic environments, and improving the conception rate.

The invention discloses a breeding and maturing method of Sichuan parabramis pekinensis parent fish, which comprises the following steps: putting male and female parabramis pekinensis into a breeding pond with the putting density of 150 parabramis pekinensis / m < 2 >; the tubificidae and the sturgeon special feed are uniformly mixed for domestication, the weight ratio of the tubificidae to the sturgeon special feed is 8: 2, and an artificial nutrition feed additive is supplemented; 7-10 days before spawning induction, feeding is stopped; feeding management: the dissolved oxygen in the culture water is greater than 6mg / L, the average water temperature is 23 DEG C, and the pH value is 6.5-7.5; disinfecting the parent fish culture pond every other January; water flow stimulation: adjusting the water flow speed to 0.04 m / s; in the close breeding period, a rainfall temperature increasing and water flow stimulation combined mode is adopted, and water surface and underwater combined mode is adopted for water flow stimulation. According to the method, through artificial regulation and control, the female and male Sichuan parabramis pekinensis parent fishes are mature, the brood amount is large, the reproductive capacity is high, the sperm and egg quality is high, and synchronous maturation of the female and male parent fishes is achieved.

The invention provides an artificial breeding method for echinacea chlamydoides. The artificial breeding method comprises the following steps: S1, selecting parent fish; s2, performing nutrient enrichment culture on the parent fish; s3, artificial spawning and fertilization; s4, artificial incubation; s5, seedling cultivation. The feed is reasonably matched to promote parent fish development and improve egg laying and sperm production quality, spawning hormone is manually injected, injection dosage is strictly controlled, eggs and sperm which are well developed are obtained, hatching conditions of the fertilized eggs are controlled, the hatching rate of the fertilized eggs reaches 90% or above, and the hatching rate of the fertilized eggs reaches 90% or above. According to the method, oyster fertilized eggs, rotifers, artemia or cladocerans / copepods nauplii, cladocerans / copepods and floating type larva fry breeding seawater fish compound feed are sequentially fed in the fry breeding period, palatable bait series of different fry breeding stages are established, and a mature fry breeding technical route is formed.

A sperm extraction promoter capable of being assembled with an elastic soft rubber sleeve comprises a containing cavity (11), an elastic soft rubber sleeve (12), an elastic soft rubber sleeve (13) and an elastic soft rubber sleeve (14), wherein one end of the containing cavity (11) is provided with a containing cavity opening (12); the soft rubber body (2) is at least partially located in the containing cavity (11), the soft rubber body (2) is provided with a first massage channel (21), or the first massage channel (21) is defined by more than two soft rubber bodies (2); the first massage channel (21) is provided with a massage channel opening (22), and the massage channel opening (22) and the containing cavity opening (12) face the same direction; the fixing mechanism (5) is used for detachably fixing the elastic soft rubber sleeve in a sealing manner; the air pressure device (4) is at least communicated with the first massage channel (21). According to the utility model, the comfort of a user is improved, and the sperm extraction effect is promoted; and the cumbersome appliance cleaning work is avoided, the use is convenient, and the sperm sampling sample is not easy to pollute.

The invention belongs to the field of kidney tonifying and essence securing traditional Chinese medicine, and discloses kidney tonifying and essence securing traditional Chinese medicine pills and a preparation method thereof.The kidney tonifying and essence securing traditional Chinese medicine pills are prepared from, by mass, 15 parts of herba cistanche, 12 parts of radix morindae officinalis, 20 parts of radix rehmanniae praeparata, 15 parts of semen cuscutae, 12 parts of flatstem milkvetch seeds, 10 parts of fructus corni, 10 parts of fructus rosae laevigatae, 10 parts of fructus rubi, 12 parts of mulberries, 15 parts of rhizoma dioscoreae, 10 parts of poria cocos, 6 parts of fructus schizandrae and 6 parts of honey-fried licorice roots. The prescription has the effects of tonifying yin and yang, consolidating diarrhea and harmonizing spleen and kidney; the traditional Chinese medicine has the effects of tonifying kidney and replenishing essence, securing essence, regulating metabolism and delaying senescence of a reproductive system.

The invention discloses a pig whole sperm membrane protein antigen specific nano antibody library construction method which comprises the following steps: S1, immunizing alpaca with pig whole sperms, and separating peripheral blood cells after immunization; s2, RNA in peripheral blood cells is extracted, cDNA is obtained through reverse transcription, and a VHH coding sequence of an antibody is amplified; s3, cloning the amplified VHH coding sequence to a bacteriophage plasmid vector to prepare a recombinant bacteriophage vector; s4, transforming the recombinant bacteriophage vector into escherichia coli and carrying out enlarged culture to obtain a bacteriophage display library; and S5, performing panning on the phage display library for a plurality of times by using the pig X / Y sperms, and constructing the pig single sex sperm specific nano antibody library. According to the method, the pig whole sperm is adopted as an immunogen for immunizing alpaca for the first time, the capacity of the constructed antibody library reaches 3.4 * 10 < 8 > pfu, the abundance of the antibody library is higher, the coverage degree of whole sperm antigens is higher, and the variety is more complete, so that the capture success rate of the pig sex control specific antibody is increased, and a foundation is laid for industrial application of the pig sperm specific antibody.

The utility model provides a system for preparing cyclic carbonate by catalyzing cycloaddition of carbon dioxide. The system comprises a cycloaddition reactor, a flash tank and a rectifying tower, a product outlet of the cycloaddition reactor is connected with a material inlet of the flash tank, a gas phase outlet of the flash tank is connected with a material inlet of the rectifying tower, and a liquid phase outlet of the flash tank is connected with the cycloaddition reactor; an enhanced mass transfer unit is arranged inside the cycloaddition reactor, the side wall of the cycloaddition reactor is sequentially connected with a first feeding pipeline for introducing an epoxy compound and a second feeding pipeline for introducing carbon dioxide from top to bottom, and the second feeding pipeline is connected with the enhanced mass transfer unit; carbon dioxide in the second feeding pipeline is treated by the enhanced mass transfer unit and then enters the cycloaddition reactor; a material inlet of the rectifying tower is lower than the middle position of the rectifying tower in the height direction of the rectifying tower, and a plurality of tower plates are arranged in the rectifying tower and staggered from top to bottom in the height direction of the rectifying tower. The system is favorable for improving the reaction efficiency.

The utility model relates to the technical field of medical instruments, and discloses a novel sperm collecting cup which comprises a cup body, and the bottom of the cup body is provided with a spherical cup bottom and a plurality of branch feet which surround the periphery of the spherical cup bottom and are evenly arranged at intervals. The sperm taking cup further comprises a heat conduction balance weight table which is matched with the outer wall of the spherical cup bottom in an attached mode. According to the sperm collecting cup, the balance capacity of water bath floating of the cup body can be improved, the toppling risk is reduced, a heat conduction balance weight table is arranged at the bottom of the cup body, the heat conduction balance weight table is matched with the outer wall of the spherical cup bottom in an attached mode, water bath heat can be well transmitted, the temperature of liquid in the sperm collecting cup can be kept, and the sperm collecting effect is good. The balance capacity of water bath floating of the cup body can be further improved, and the cup body is prevented from toppling.

The invention relates to the technical field of hair treatment medicines, and particularly discloses an anti-alopecia hair-blacking liquid for nourishing white hair and blacking hair and a preparation method of the anti-alopecia hair-blacking liquid. The hair loss preventing and blackening liquid for white hair and black hair comprises the following raw materials in parts by mass: 5-10 parts of kaempferol, 1-5 parts of aromatic folic acid, 1-2 parts of lecithin, 1-2 parts of a surfactant, 40-60 parts of vegetable oil, 1-3 parts of blue copper peptide, 1-2 parts of dopamine hydrochloride, 0.01-0.1 part of 1-ethyl-(3-dimethylaminopropyl) carbodiimide and 1-2 parts of a traditional Chinese medicine extract. Hydrophilic and lipophilic active components are loaded at the same time, repair and development of melanocytes are effectively promoted, connection of hair papilla and blood vessels can be enhanced, the hair growing effect is remarkable, irritation is small, hair follicles can be deeply nourished, dependence cannot be generated, and the composition is suitable for large-scale application and popularization.

The application discloses six boar sperm motility miRNA markers, which are ssc-miR-486, ssc-miR-10386, ssc-miR-708-5p, ssc-miR-122-5p, ssc-miR-199a-3p and ssc-miR-31, wherein the ssc-miR-486, ssc-miR-10386, ssc-miR-708-5p, ssc-miR-122-5p and ssc-miR-199a-3p are highly expressed in low-motility semen sperm plasma exosomes and lowly expressed in high-motility semen sperm plasma exosomes, and the ssc-miR-31 is lowly expressed in low-motility semen sperm plasma exosomes and highly expressed in high-motility semen sperm plasma exosomes. The application has good prospects for identifying boar sperm motility, and the disclosed miRNA markers have accuracy and reliability.

This invention discloses a method for large-scale breeding of all-female triploid mandarin fish, comprising the following steps: (1) Preparation of all-female diploid fertilized eggs: using male mandarin fish pseudo-males (XX) induced by androgens and female mandarin fish (XX) selected from superior strains as parent fish, collecting sperm and eggs, mixing the two, adding water at a temperature of 28℃ to activate sperm for fertilization, and obtaining all-female diploid fertilized eggs; (2) Heat shock induction of triploids: after the all-female diploid fertilized eggs are fertilized in the above-mentioned water at a temperature of 28℃ for 8 minutes, they are immediately transferred to water at a temperature of 39~41℃ for 1~2 minutes for heat shock induction, and all-female triploid fertilized eggs are obtained; (3) Seedling hatching and cultivation: the fertilized eggs induced by heat shock in step (2) are transferred to the hatching system for hatching, and then conventional seedling cultivation is carried out to obtain all-female triploid mandarin fish seedlings. The mandarin fish fry produced by this method have a high female rate, triploid rate, and survival rate.

This invention discloses a method for identifying the parentage between assisted reproductive embryos and sperm or egg donors, belonging to the field of paternity testing technology. The method includes the following steps: S101: Obtaining a single-cell amplification product sample S and sperm / egg donor samples F / M; S102: Sequencing the dimorphic loci of the two samples to obtain DNA data N(S) and N(F / M); S103: Using the loci in the statistical locus set N(S)∩N(F / M) as valid loci; S104: Calculating the mismatch rate and correlation between the two samples based on the valid loci; S105: Determining the parentage between the two samples based on the mismatch rate and correlation; if the correlation ∈ [0.45, 0.60] and the mismatch rate ∈ [0, 3.125%], then the two samples are determined to be parent-child. This patent can accurately determine the parentage between the embryo and the sperm / egg donor even when the genome may be lost.

The present disclosure provides a microscopic insemination support device having a simple configuration. The present disclosure relates to a microscopic insemination support device that supports microscopic insemination in which sperm held by a sperm injection tool is injected into an egg held by an egg holding device. The microscopic insemination support device comprises an acquisition unit configured to acquire information including a relative positional relationship between the sperm injection tool and the egg, and a control unit configured to, on the basis of the information acquired by the acquisition unit, control movement of a stage on which the egg holding device is disposed so as to perform microscopic insemination by injecting sperm into the egg.

The utility model discloses a backwashing device of a granulation water filter, and relates to the related technical field of underwater granulation. The device comprises a shell, a connecting pipe, a mounting frame, a backwashing spray pipe and a displacement assembly, a joint is fixed at one end of the shell, and one end, far away from the shell, of the joint is fixedly connected with the end part of the connecting pipe; a branch pipe is fixed on the peripheral side of the backwashing spray pipe in a penetrating manner, and nozzles distributed at equal intervals are fixed on the peripheral side surface of the backwashing spray pipe opposite to the branch pipe in a penetrating manner; a power spray hole I and a power spray hole II are also formed in the peripheral side of the backwashing spray pipe. Through the arrangement of the shell, the connecting pipe, the backwashing spray pipe, the spray head, the branch pipe, the mounting frame and the displacement assembly, the problems that manual cleaning is slow, the automation degree is low, the labor intensity of workers is high, the efficiency is low, and the same backwashing device is difficult to meet the requirement for cleaning two sieve plates are solved.

The present disclosure describes a sperm separating device (1). The device comprises a sample zone (5) configured to receive semen, a collection zone (15) fluidly connected to the sample zone by a migration zone (10). A lid (20) is disposed over a part of the migration zone and the collection zone, wherein the migration zone includes grooves to guide sperm within the semen, and wherein the sperm in the semen migrate via the grooves to the collection zone.

The invention relates to a real-time testis rare sperm auxiliary identification method and device which are used for testis incision sperm extraction under a microscope, and the method comprises the following steps: obtaining first real-time image dynamic data; inputting the first real-time image dynamic data to a rare testis sperm auxiliary identification model to obtain rare testis sperm data; and updating the first real-time image dynamic data based on the rare testis sperm data to obtain second real-time image dynamic data. The method has the advantages that due to the fact that the auxiliary identification model for the rare sperms of the testis is high in response speed, the first real-time image dynamic data can be rapidly identified and updated, and the problems of labeling dislocation, repeated identification and the like cannot occur.

This invention discloses a method for extracting high-purity PDRN from salmon testes and its application in improving skin condition, belonging to the field of bioactive ingredient extraction technology. Frozen salmon testis tissue is cleaned of blood vessels and fatty impurities, then cryogenically pulverized at -20~-25℃. The pulverized tissue is added to a pre-treatment dispersion buffer and homogenized under high pressure to obtain a DNA fragmentation solution. The precipitate is then separated by centrifugation. The precipitate is dispersed in a dedicated enzyme digestion buffer, and enzymatic digestion with protease and RNase A is performed to inactivate the enzyme. DNase I is added to the digestion solution for enzymatic cleavage. After the reaction, a stop solution is added to terminate the reaction, and the supernatant is separated by centrifugation. Ethanol is added to the supernatant for precipitation, and centrifugation yields PDRN from salmon testes. This invention, through specific buffer systems and enzymatic digestion conditions, increases the PDRN content by 40~60 kDa, allowing for better absorption and utilization by the skin, improving facial hydration and elasticity, effectively reducing facial wrinkles, and improving facial skin condition. It can be used to prepare functional cosmetics.

The invention discloses a method for inducing triploids of Malus salicina by using a hydrostatic pressure method. Relates to the technical field of aquatic genetic breeding. Comprising the following steps: preparing parent fish; collecting eggs for fertilization, starting timing after the eggs and the eggs are mixed, and controlling the water temperature to be 6-8 DEG C; pressurizing treatment: pressurizing is started after 15-20 min after fertilization, the pressure is selected to be 60-65 kg / cm < 2 >, the continuous pressurizing time is 5-6 min, and the fertilized eggs subjected to pressurizing treatment are obtained; hatching fertilized eggs; juvenile fish breeding. The growth speed of the obtained triploid is obviously improved compared with that of a diploid, the fish quality is improved, the defects of domestic salmon and trout breeding varieties are overcome, and the method has important significance in promoting industrial development of domestic salmon and trout and has wide market application prospects.

The utility model provides an animal sperm injector convenient to use, and relates to the technical field of animal artificial insemination. The animal semen injection device convenient to use comprises a semen injection supporting rod body, a semen injection elastic outer sleeve, an easily-folded leakage-proof piece and a blocking piece. The sperm injection elastic outer sleeve is arranged on the sperm injection supporting rod body in a sleeving mode, the two ends of the sperm injection elastic outer sleeve are connected with the sperm injection supporting rod body in a sealed mode, and a containing cavity used for containing sperm is formed between the sperm injection supporting rod body and the sperm injection elastic outer sleeve; the front end of the sperm injection supporting rod body is provided with a first mounting hole for mounting the easy-to-break leakage-proof piece, and the first mounting hole is communicated with the accommodating cavity; a second mounting hole for mounting the blocking piece is formed in the tail end of the semen injection supporting rod body, and the second mounting hole is communicated with the containing cavity; and temperature control wax is arranged in the easy-to-fold leakage-proof piece. The technical effect that the fertilization device is convenient to use is achieved.

The utility model discloses EVA automatic punching, fine cutting and laying equipment which comprises a cutting machine for cutting EVA, a fine cutting machine for performing fine cutting on the periphery of the EVA cut by the cutting machine, and a conveying and correcting mechanism for conveying and correcting a photovoltaic module and receiving the EVA finely cut by the fine cutting machine, which are sequentially arranged side by side, one end of the cutting machine is provided with a feeding device which is communicated with the cutting machine and supplies materials, a first carrying mechanism for carrying EVA is arranged between the cutting machine and the fine cutting machine, and a second carrying mechanism for carrying EVA is arranged between the fine cutting machine and the conveying and restoring mechanism. And a punching mechanism for punching the EVA cut by the cutting machine is arranged on the first carrying mechanism. According to the EVA punching die, the periphery of EVA can be finely cut, the position precision of punching can be improved, meanwhile, all procedures are more compact, and the working efficiency is improved.

A flame retardant production rectifying still relates to the technical field of stirring devices and comprises a rectifying still main body, a main shaft is vertically and rotatably arranged in the rectifying still main body, rotating pipes with opposite rotating directions are rotatably sleeved on the main shaft, the lower end part of the main shaft extends into a liquid phase area and is fixedly connected with lower stirring blades, and the lower end parts of the rotating pipes are positioned in a gas phase area and are fixedly connected with upper stirring blades. A driving shaft is fixedly connected to the outer top of the rectifying still main body and is connected with the upper end part of the main shaft through an overrun clutch. The stirring structure for the flame retardant rectifying still solves the problems that a stirring structure for the flame retardant rectifying still in the prior art cannot perform layered stirring according to a gas phase region and a liquid phase region, and cannot select to perform independent stirring or linkage stirring on the gas phase region or the liquid phase region according to actual conditions, so that the use range is reduced, and the rectifying efficiency of the rectifying still is reduced.

The invention discloses a sperm collecting device. The sperm collecting device comprises a moving cylinder capable of moving in a reciprocating mode. A rotatable inner sleeve is arranged in the moving cylinder, and at least one end of the inner sleeve is open; a telescopic driving assembly is arranged on the side of the moving cylinder and drives the moving cylinder to do reciprocating motion; a rotary driving assembly is further arranged on the side of the moving cylinder and drives the inner sleeve to rotate relative to the moving cylinder. A flexible cylinder is arranged in the inner sleeve, and at least one end of the inner sleeve is open; the sperm collecting device further comprises a sound structure, the sound structure is arranged on the outer side of the moving cylinder and is static relative to the moving cylinder and the inner sleeve, the sound structure comprises a micro loudspeaker and a plurality of sound outlet holes communicated with the outside, the sound outlet holes are arranged around the inner sleeve, and the central axis formed by arranging the sound outlet holes coincides with the axis of the inner sleeve. And sound waves generated by the micro loudspeaker are transmitted out through the sound outlet hole. The sperm extraction device can promote rapid ejaculation of the user and relieve the nervous emotion of the user during sperm extraction.