Hu sheep high conception rate artificial insemination device based on low stress and method thereof
By using a dual ultrasonic disinfection method combining a five-axis laser-processed acoustic reflection grating and a flexible piezoelectric sleeve in the artificial insemination device for Hu sheep, along with SAW sensor detection, the problem of incomplete disinfection in the artificial insemination device for Hu sheep was solved, the conception rate and insemination efficiency were improved, and the risk of infection was reduced.
Patent Information
- Application Number
- CN202511716109.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-21
- Publication Date
- 2026-01-02
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing artificial insemination devices for Hu sheep suffer from biofilm resistance during the disinfection process, leading to bacterial residues and reproductive tract inflammation, which affects conception rates. Furthermore, disposable insemination heads are costly and have poor compatibility, making them difficult to promote.
The device employs a five-axis laser-processed acoustic reflection grating and a flexible piezoelectric sleeve combined with an interdigital transducer for dual ultrasonic action. This, along with a heating layer and a hydrogen peroxide sterilizer, achieves thorough disinfection of the instrument both inside and out. The disinfection effect is monitored in real time by an SAW sensor to ensure semen viability.
Effectively removes biofilm, reduces the risk of reproductive tract infection in sheep, improves conception rate, prevents loss of superior genes, ensures semen activity and fertilization efficiency, and avoids the problems of missed detection and time consumption in traditional testing.
Smart Images
Figure CN121242773A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of livestock breeding, in particular to a low-stress artificial insemination device for high conception rate of Lake sheep and a method thereof. BACKGROUND
[0002] As an important meat and milk dual-purpose breed in China, excellent Lake sheep has its core breeding resources concentrated in a few large-scale farms. Natural mating has problems such as difficulty in cross-regional transmission of breed genes and poor adaptability, which cannot meet the population improvement needs of breeding areas across the country and is prone to cause loss of high-quality genes due to physiological defects of some breeding sheep. Artificial insemination technology, which breaks through geographical and physiological limitations through sperm freezing and long-distance transportation, has become a key means to promote Lake sheep population improvement and ensure the continuation of the breed, and has been widely used in large-scale breeding. However, the conception rate of artificial insemination of Lake sheep is highly dependent on the activity of semen and the cleanliness of insemination equipment. Complete disinfection of the equipment is the key guarantee. Onion Burkholderia and Pseudomonas aeruginosa, which are common in Lake sheep breeding environments, are prone to adhere to blind areas such as the lumen, threaded interface and curved channel of the insemination gun, and to form biofilm by secreting polysaccharide matrix. Although the existing technology uses hydrogen peroxide generated by water electrolysis for disinfection, biofilm has natural resistance to it: the polysaccharide matrix adsorbs and consumes active ingredients, and the antioxidant enzymes secreted by bacteria in the film further decompose the effective substances, resulting in only the surface bacteria being killed and the inner layer remaining, which can easily cause inflammation of the reproductive tract of Lake sheep when the biofilm falls off, forming a vicious cycle of incomplete disinfection leading to infection and further reducing reproductive efficiency. In addition, some farms use disposable gun heads to avoid disinfection problems, but the general type is poorly adapted to the physiological structure of Lake sheep, which can easily cause shallow insemination and the inability of semen to accurately reach the fertilization site. The interface of the inferior gun head is not sealed enough, and air is mixed in during assembly, forming bubbles that mechanically damage sperm. Customized disposable gun heads are costly in large-scale breeding and are difficult to popularize. SUMMARY
[0003] In view of the deficiencies of the prior art, the application provides a low-stress artificial insemination device for high conception rate of Lake sheep and a method thereof.
[0004] To achieve the above-mentioned purpose, the application provides the following technical scheme: A low-stress artificial insemination device for high conception rate of Lake sheep, comprising a sperm gun body and a bracket, wherein the front end of the sperm gun body is fixedly connected with a needle tube, the inside pipeline of the needle tube is provided with an acoustic reflector grid through five-axis laser, the rear side of the sperm gun body is provided with a needle tube structure, the needle tube structure comprises a detachable tube, the outside of the detachable tube is fixedly connected with a fixing ring, the inside of the detachable tube is slidably connected with a push rod, the rear side of the push rod is fixedly connected with a driving motor, and the output end of the driving motor is fixedly connected with a threaded rod.
[0005] Further, the threaded rod is in threaded connection with the rear end of the detachable tube, the side end of the threaded rod is in rotary connection with the fixed ring, the support is fixedly connected with a connecting frame, the connecting frame is fixedly connected with a shell, the upper and lower ends of the shell are provided with sealing flanges, the inner side of the shell is provided with a heating layer, and the inner side of the shell is provided with a cleaning chamber.
[0006] Further, the inner side of the cleaning chamber is provided with an arc structure matched with the curved channel of the sperm gun body, a plurality of interdigital transducers are uniformly distributed on the inner side of the cleaning chamber, and the inner side of the cleaning chamber comprises an outer wall IDT array, an inner wall IDT assembly and a phase delay circuit.
[0007] Further, the inner side of the cleaning chamber further comprises a detection unit and a central controller, the detection unit is arranged at the inlet end, the curved section and the outlet end of the disinfection chamber respectively, each group of detection units comprises a SAW sensor, the SAW sensor is used for detecting the SAW propagation attenuation, and the SAW sensor is in electrical connection with the central controller through a signal transmission module. Further, a sealing ring is arranged between the cleaning chamber and the sealing flange.
[0008] Further, a pressure sensor is arranged in the cleaning chamber, and the pressure sensor is in electrical connection with the central controller.
[0009] The inner side of the cleaning chamber is fixedly connected with an elastic silica gel clamping seat, the outer side of the needle tube is in clamping connection with the elastic silica gel clamping seat, and the support is in connection with a hydrogen peroxide sterilizer.
[0010] A method for artificial insemination by using the low-stress-based artificial insemination device for Hu sheep with high conception rate, comprising the following steps: S1: using the preparation one: disassembling the detachable tube, the push rod and the needle tube of the sperm gun body, wiping off the surface residues; checking the integrity of the elastic silica gel clamping seat and the sealing ring, preparing the matched disinfection medium; ensuring that the sensor and the controller are powered on standby, and calibrating the driving accuracy of the motor and the threaded rod; S2: using the preparation two: assembling the needle tube and the detachable tube, ensuring smooth sliding of the push rod and firm threaded connection; fixing the sperm gun body to the cleaning chamber through the silica gel clamping seat, closing the sealing flange, and pre-detecting the sealing property of the chamber by the pressure sensor; S3: injecting disinfection medium into the cleaning chamber to ensure that the needle tube and the detachable tube are immersed; setting parameters of the controller: heating layer temperature, interdigital transducer ultrasonic frequency, disinfection time, and setting a safety threshold of the pressure sensor; S4: start the controller, synchronize the activation of the heating layer and the interdigital transducer; during disinfection, drive the motor to drive the push rod to reciprocate and slide; the pressure sensor monitors in real time, and automatically releases pressure when the threshold is exceeded; S5: turn off the device, read the SAW sensor data; open the flange to discharge the medium, take the gun body and discharge the remaining through the push rod, and finally store the instrument in a sterile environment. Advantages
[0011] 1. A low-stress-based artificial insemination device for high conception rate of Hu sheep and a method thereof, which utilizes the dual ultrasonic effect of cleaning the inner wall IDT array and the inner wall flexible piezoelectric sleeve, cooperates with the heat disinfection of the heating layer and the external hydrogen peroxide disinfection device of the support, utilizes the ultrasonic liquid cavitation effect to impact the outer surface of the instrument, and enhances the oscillation intensity of the needle tube acoustic reflection grid gap through the circumferential IDT array of the inner wall, effectively peeling off the resistant biofilm formed by Burkholderia cepacia and Pseudomonas aeruginosa, reducing the risk of reproductive tract infection of Hu sheep and improving the conception rate.
[0012] 2. A low-stress-based artificial insemination device for high conception rate of Hu sheep and a method thereof, which realizes real-time detection of disinfection effect through SAW sensors and closed-loop regulation of central controllers, ensures that the inside and outside of the instrument are disinfected to standard without dead angles, avoids the problem of pathogenic microorganism invasion caused by failure of the instrument seal, protects the activity of the superior semen, and avoids the loss of excellent genes. 3. A low-stress-based artificial insemination device for high conception rate of Hu sheep and a method thereof, which deploys SAW sensors at the inlet end, the curved section and the outlet end of the disinfection chamber, collects the SAW propagation attenuation in real time and compares it with the reference signal, realizes non-invasive and accurate detection, avoids the problems of missed judgment and time consumption of traditional visual and biochemical detection, and ensures that there is no semen residue to prevent cross contamination of breeding animals. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall mechanism structure of the present application; Figure 2 It is a schematic diagram of the sperm gun body structure of the present application; Figure 3 It is a schematic diagram of the shell structure of the present application; Figure 4 It is a schematic diagram of the acoustic reflection grid structure of the present application; Figure 5 It is a schematic diagram of the cleaning chamber structure of the present application.
[0014] In the figure: 1, sperm gun body; 2, needle tube; 31, detachable tube; 32, fixed ring; 33, threaded rod; 34, drive motor; 35, push rod; 4, acoustic reflection grid; 5, elastic silica gel seat; 6, cleaning chamber; 7, connecting frame; 8, support; 9, shell; 10, sealing flange; 11, heating layer; 12, interdigital transducer. DETAILED DESCRIPTION
[0015] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.
[0016] Embodiment one: please refer to Figure 1 -5, a low-stress-based high-conception-rate artificial insemination device for Hu sheep and a method thereof, comprising a sperm gun body 1 and a support 8, the front end of the sperm gun body 1 is fixedly connected with a needle tube 2, the inside pipeline of the needle tube 2 is provided with a sound reflection grid 4 through five-axis laser, the rear side of the sperm gun body 1 is provided with a needle tube structure, the needle tube structure comprises a detachable tube 31, the outside of the detachable tube 31 is fixedly connected with a fixing ring 32, the inside of the detachable tube 31 is slidably connected with a push rod 35, the rear side of the push rod 35 is fixedly connected with a driving motor 34, and the output end of the driving motor 34 is fixedly connected with a threaded rod 33.
[0017] The threaded rod 33 is threadedly connected with the rear end of the detachable tube 31, the side end of the threaded rod 33 is rotationally connected on the fixing ring 32, the support 8 is fixedly connected with a connecting frame 7, the connecting frame 7 is fixedly connected with an outer shell 9, the upper and lower ends of the outer shell 9 are provided with sealing flanges 10, the inside of the outer shell 9 is provided with a heating layer 11, and the inside of the outer shell 9 is provided with a cleaning chamber 6.
[0018] The inside of the cleaning chamber 6 is provided with an arc structure matched with the curved channel of the sperm gun body 1, a plurality of interdigital transducers 12 are uniformly distributed on the inside of the cleaning chamber 6, the inside of the cleaning chamber 6 comprises an outer wall IDT array, an inner wall IDT assembly and a phase delay circuit, the outer wall IDT array is arranged in multiple sections along the axial direction of the inner wall of the disinfection chamber, the inner wall IDT assembly is a flexible piezoelectric sleeve matched with the inner wall of the insemination gun, and the outer wall of the flexible piezoelectric sleeve is arranged with a circumferential IDT array.
[0019] The inside of the cleaning chamber 6 further comprises a detection unit and a central controller, the detection unit is arranged at the inlet end, the curved section and the outlet end of the disinfection chamber respectively, each detection unit comprises a SAW sensor, the SAW sensor is used for detecting the SAW propagation attenuation, and the SAW sensor is electrically connected with the central controller through a signal transmission module. A sealing ring is arranged between the cleaning chamber 6 and the sealing flange 10.
[0020] A pressure sensor is arranged in the cleaning chamber 6 and electrically connected with the central controller.
[0021] The cleaning chamber 6 is fixedly connected with an elastic silica gel clamping seat 5, the outside of the needle tube 2 is clamped with the elastic silica gel clamping seat 5, and the support 8 is externally connected with a hydrogen peroxide sterilizer.
[0022] A low-stress-based artificial insemination device for high conception rate of Hu sheep and a method thereof, comprising the following steps: S1: Before use, prepare one: disassemble the detachable tube 31, push rod 35 and needle tube 2 of the sperm gun body 1, wipe off the surface residues; check the integrity of the elastic silica gel seat 5 and the sealing ring, prepare the appropriate disinfection medium; ensure that the sensor and the controller are powered on standby, and calibrate the driving motor 34 and the threaded rod 33 transmission precision.
[0023] S2: Before use, prepare two: assemble the needle tube 2 and the detachable tube 31, ensure that the push rod slides smoothly and the threaded connection is firm; fix the sperm gun body 1 in the cleaning chamber 6 through the silica gel seat 5, close the sealing flange 10, and pre-detect the chamber sealing property with the pressure sensor; S3: Inject disinfection medium into the cleaning chamber 6, ensure that the needle tube 2 and the detachable tube 31 are immersed; set parameters through the controller: heating layer 11 temperature, interdigital transducer 12 ultrasonic frequency, disinfection time, and set the pressure sensor safety threshold; S4: Start the controller, activate the heating layer and the interdigital transducer simultaneously; during disinfection, the driving motor drives the push rod to reciprocate; the pressure sensor monitors in real time, and automatically releases pressure when the threshold is exceeded; S5: Turn off the equipment, read the SAW sensor data; open the flange to discharge the medium, take the gun body and discharge the residues through the push rod, and finally store the instrument in a sterile environment.
[0024] Working principle: The detachable tube 31 and the needle tube 2 of the sperm gun body 1 are split structure, which realizes the operation logic of instrument split cleaning and assembly disinfection, avoids the disinfection dead angle caused by the overall structure; the driving motor 34 is connected with the detachable tube 31 through the threaded rod 33, which converts the rotary motion of the motor into the linear sliding of the push rod 35, provides power for the subsequent flow of disinfection medium in the pipeline and discharge of residues, and at the same time, the fixed ring 32 limits the rotation of the threaded rod 33, ensures the transmission precision, and controls the injection rate to avoid the over-reaction of Hu sheep caused by too fast artificial insemination of Hu sheep.
[0025] The arc-shaped structure of the cleaning chamber 6 is matched with the curved channel of the sperm gun body 1, which ensures that the instrument is attached to the chamber wall and avoids the blind area of disinfection medium retention; the elastic silica gel seat 5 fixes the needle tube 2 through interference fit to prevent displacement of the instrument during disinfection. The interdigital transducer 12 in the cleaning chamber 6 forms double ultrasonic action through the outer wall IDT array + inner wall flexible piezoelectric sleeve: The outer wall IDT array emits ultrasonic waves along the axial section of the chamber, which produces high-frequency vibration when the sound wave propagates in the disinfection medium, forms liquid cavitation effect, and impacts the outer surface residues of the instrument to realize the outer wall cleaning; The inner wall flexible piezoelectric sleeve is attached to the inner wall of the insemination gun, and the ultrasonic waves emitted by the circumferential IDT array directly act on the inner wall of the pipeline, especially the gap between the five-axis laser-processed sound reflection grid 4 on the inner side of the needle tube 2, and the local oscillation intensity is enhanced through sound wave reflection to strip stubborn residues; The physical disinfection of the inner and outer sides of the instrument is realized. The surface acoustic wave sensor is arranged at the inlet end, the curved section and the outlet end of the insemination gun in the disinfection chamber, and the characteristics of the sound wave propagation attenuation and the positive correlation with the residual amount are utilized: Before disinfection, the SAW emitted by the sensor propagates on the surface of the instrument and produces a certain attenuation due to the residual existence After disinfection, if the residues are removed, the SAW propagation resistance decreases, and the attenuation decreases; The central controller compares the SAW attenuation before and after disinfection or in real time, and if the attenuation is within the preset qualified range, it is determined that the disinfection is up to standard, otherwise a secondary disinfection instruction is triggered to ensure controllable disinfection effect. After the heating layer 11 inside the shell 9 is electrified to generate heat, the heat is transferred to the disinfection medium in the cleaning chamber 6 through heat conduction, so that the medium temperature rises to a preset value, and the needle tube 2 maintains a constant temperature, thereby avoiding the low temperature of the needle tube 2 affecting the insemination efficiency of the lake sheep when the lake sheep is artificially inseminated.
[0026] Although the embodiments of the present application have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A low stress-based artificial insemination device for high conception rate of Huzhu sheep, characterized in that, Including sperm gun body (1) and support (8), the front end of the sperm gun body (1) is fixedly connected with a needle tube (2), the inside pipeline of the needle tube (2) is provided with an acoustic reflector (4) by five-axis laser, the rear side of the sperm gun body (1) is provided with a needle tube structure, the needle tube structure includes a detachable tube (31), the outside of the detachable tube (31) is fixedly connected with a fixed ring (32), the inside of the detachable tube (31) is slidably connected with a push rod (35), the rear side of the push rod (35) is fixedly connected with a driving motor (34), and the output end of the driving motor (34) is fixedly connected with a threaded rod (33).
2. The low-stress-based artificial insemination device for increasing the pregnancy rate of Huzhu sheep according to claim 1, characterized in that: The threaded rod (33) is threadedly connected with the rear side end of the detachable tube (31), the side end of the threaded rod (33) is rotatably connected on the fixed ring (32), the support (8) is fixedly connected with a connecting frame (7), the connecting frame (7) is fixedly connected with a shell (9), the upper and lower ends of the shell (9) are provided with sealing flanges (10), the inside of the shell (9) is provided with a heating layer (11), and the inside of the shell (9) is provided with a cleaning chamber (6).
3. The low-stress-based artificial insemination device for increasing the conception rate of Huzhu sheep according to claim 2, characterized in that: The inside of the cleaning chamber (6) is provided with an arc structure matched with the curved channel of the sperm gun body (1), a plurality of interdigital transducers (12) are uniformly distributed in the inside of the cleaning chamber (6), and the inside of the cleaning chamber (6) includes an outer wall IDT array, an inner wall IDT assembly and a phase delay circuit.
4. The low-stress-based artificial insemination device for increasing the conception rate of Huzhu sheep according to claim 3, characterized in that: The inside of the cleaning chamber (6) further includes a detection unit and a central controller, the detection unit is respectively arranged at the inlet end, the curved section and the outlet end of the disinfection chamber, each detection unit includes a SAW sensor, the SAW sensor is used for detecting the SAW propagation attenuation, and the SAW sensor is electrically connected with the central controller through a signal transmission module.
5. The low-stress-based artificial insemination device for increasing the conception rate of Huzhu sheep according to claim 4, characterized in that: A sealing ring is arranged between the cleaning chamber (6) and the sealing flange (10).
6. The low-stress-based artificial insemination device for increasing the conception rate of Huzhu sheep according to claim 5, characterized in that: A pressure sensor is arranged in the cleaning chamber (6), and the pressure sensor is electrically connected with the central controller.
7. The low-stress-based artificial insemination device for increasing the conception rate of Huzhu sheep according to claim 6, characterized in that: The cleaning chamber (6) is fixedly connected with an elastic silica gel clamping seat (5), the outside of the needle tube (2) is clamped with the elastic silica gel clamping seat (5), and the support (8) is externally connected with a hydrogen peroxide sterilizer.
8. A method for artificial insemination using the low-stress-based artificial insemination device for Hu sheep with high conception rate according to any one of claims 2-7, characterized in that, The steps include: S1: before use, preparation one: disassemble the detachable tube (31), the push rod (35) and the needle tube (2) of the sperm gun body (1), wipe off the surface residues, check the integrity of the elastic silica gel clamping seat (5) and the sealing ring, prepare the matching disinfection medium, ensure that the sensor and the controller are powered on standby, and calibrate the transmission precision of the driving motor (34) and the threaded rod (33). S2: before use, preparation two: assemble the needle tube (2) and the detachable tube (31), ensure that the push rod slides smoothly and the threaded connection is firm, fix the sperm gun body (1) in the cleaning chamber (6) through the silica gel clamping seat (5), close the sealing flange (10), and pre-detect the sealing property of the chamber by the pressure sensor; S3: Inject disinfecting medium into the cleaning chamber (6) to ensure that the needle tube (2) and the detachable tube (31) are immersed; set the parameters of the controller: the temperature of the heating layer (11), the ultrasonic frequency of the interdigital transducer (12), and the disinfection time, and set the safety threshold of the pressure sensor; S4: Start the controller and synchronously activate the heating layer and the interdigital transducer; during disinfection, drive the motor to drive the push rod to reciprocate and slide; the pressure sensor monitors in real time, and automatically releases pressure when the threshold is exceeded; S5: Turn off the equipment, read the SAW sensor data; open the flange to discharge the medium, take out the gun body, discharge the residues through the push rod, and finally store the instrument in a sterile environment.