Sample collection device for veterinary examination

Abstract

The invention relates to the technical field of veterinary medical equipment, and discloses a veterinary examination sample collection device which comprises a gun body part, a handheld part and an extension tube which are installed in a combined mode, the gun body part is internally provided with a suction part, the veterinary examination sample collection device further comprises a collection ball arranged at the front end of the extension tube, the surface of the collection ball is fully provided with filter holes communicated with the suction part, and the filter holes are communicated with the suction part. The filter holes are used for filtering solid particles in gastric juice; the eye socket structure is arranged around the collecting ball and comprises two eyelid shells which can be opened or closed; and the blinking structure is used for controlling the opening and closing of the two eyelid shells. By means of the innovative design of simulating the biological blinking action, efficient cleaning of the filter holes is achieved, the water-free cleaning mode avoids the problems of gastric juice dilution and component change possibly caused by using a cleaning solution in a traditional cleaning method, meanwhile, the risk that external impurities and flora enter the stomach is remarkably reduced, and the cleaning effect is good. And the possibility of cross infection is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of veterinary medical equipment, in particular to a sample collection device for veterinary inspection. Background Art

[0002] The rumen, as the iconic organ of ruminants, undertakes many key physiological functions, involving the fermentation of feed, the digestion of cellulose and protein, and plays an irreplaceable role in metabolism and immune barrier. When studying the digestive system of ruminants, rumen fluid collection is an extremely important method. By collecting rumen fluid from animals, researchers can gain an in-depth understanding of their digestive physiological mechanisms, provide a scientific basis for optimizing feeding and management strategies, and effectively monitor the health status of animals, and provide strong support for related scientific research and drug development.

[0003] At present, for ruminants such as sheep and cattle, a hole is usually opened in the dorsal or ventral wall between the rumen vestibule and the cardia, and a rumen fistula is installed to facilitate veterinarians and experimenters to collect and test food residues or gastric juice in the stomach to achieve the purpose of testing the health status of the animals.

[0004] However, when sampling, experimenters usually insert their arms or special tools into the fistula and directly into the stomach to collect food in the stomach. If the arms are directly inserted for collection, it is not only difficult to clean, but also a big challenge for the experimenters. If some collection devices (such as straws) are used for collection, since the rumen is in a solid-liquid mixture state, solid grass can easily clog the filter of the suction head, thereby seriously affecting the efficiency of gastric juice collection and reducing the practicality and reliability of the device. Summary of the Invention

[0005] The object of the present invention is to provide a sample collection device for veterinary examination to solve at least one technical problem existing in the above-mentioned prior art.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a sample collection device for veterinary examination, comprising a gun body, a handheld portion, and an extension tube assembled together, wherein a suction portion is provided in the gun body, and further comprising:

[0007] A collection ball is provided at the front end of the extension tube, wherein the surface of the collection ball is covered with filter holes connected to the suction part, and the filter holes are used to filter solid particles in the gastric juice;

[0008] An eye socket structure is arranged around the collecting ball, and the eye socket structure includes two eyelid shells that can be opened or closed;

[0009] A blinking structure is used to control the opening and closing of the two eyelid shells. When the filter hole is blocked, the blinking structure drives the two eyelid shells to open or close, and uses the inner part of the eyelid shell to scrape and clean the filter hole.

[0010] Optionally, the suction portion includes a sliding frame mounted on the inner wall of the gun body and capable of reciprocating sliding adjustment, two piston plates being slidably mounted on the inner wall of the sliding frame, and a pressure-changing chamber being formed between the two piston plates, and rocker arms being rotatably mounted on the opposite back surfaces of the two piston plates and the inner wall of the gun body;

[0011] The end of the gun body is also fixed with a connecting ring that is sleeved on the outer wall of the extension tube. The bottom of the connecting ring is integrally formed with a connecting cover that can be used to install and fix a collection bottle. The side wall of the connecting cover is also connected to a straw that is connected to the interior of the pressure-changing chamber. A one-way valve is installed in the straw. A first flow channel that is connected to the filter hole is opened in the extension tube, and a second flow channel that is connected to the first flow channel is opened in the interior of the connecting cover. An elastic tube that connects the first flow channel and the pressure-changing chamber is also installed in the interior of the gun body, and a one-way valve in the opposite direction to that in the straw is installed in the elastic tube.

[0012] Optionally, the blinking structure includes a middle block slidably mounted on the outer wall of the extension tube, a first connecting rod being rotatably connected between the middle block and the two eyelid shells, side shells being fixed on both sides of the gun body, adjustment bars being horizontally slidably mounted in the two side shells, and a second connecting rod being rotatably connected between the adjustment bars and the middle block;

[0013] The outer wall of the adjustment bar is provided with a long groove, the outer wall of the piston plate is fixed with a fixing rod with one end extending into the side shell, and the end of the fixing rod is fixed with a pin shaft slidably installed in the long groove, and the outer walls of the gun body and the sliding frame are provided with sliding grooves for the movement of the fixing rod.

[0014] Optionally, the end of the sliding frame away from the extension tube is connected to a piston rod, and the end of the piston rod that penetrates into the handheld part is formed with a handle, and a spring mounted on the piston rod is installed between the sliding frame and the inner wall of the gun body.

[0015] Optionally, the collecting ball is composed of a cover shell and a connecting shell, the connecting shell is integrally connected to the extension tube, a spherical cavity is provided inside the cover shell and the connecting shell, and the spherical cavity is filled with filter cotton, and the two eyelid shells are rotatably mounted on the connecting shell.

[0016] Optionally, the inner wall of the cover opening of the connecting cover is provided with a thread, and the cover opening is set to be stepped, and the connection between the straw and the connecting cover is located at the inner step.

[0017] Optionally, the elastic tube is provided with a reserved section inside the gun body.

[0018] Optionally, the outer wall of the handle is provided with grooves for finger gripping, and the outer wall of the hand-held portion is provided with anti-slip textures.

[0019] Optionally, the inner portion of the eyelid shell is configured as a soft structure, and the soft structure is a protrusion or bristle made of silicone material.

[0020] Optionally, the suction portion includes a suction pump installed in the gun body, and the suction end of the suction pump is connected to the filter hole on the collection ball to form a suction channel.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention achieves efficient cleaning of filter pores through an innovative design that simulates the blinking action of organisms. When the filter pores are blocked by solid particles, the blinking structure drives the eyelid shell to scrape and clean them, and combined with the air recoil function, the patency of the filter pores is ensured. This waterless cleaning method avoids the problems of gastric juice dilution and composition changes that may be caused by the use of cleaning fluids in traditional cleaning methods, while significantly reducing the risk of external impurities and bacteria entering the stomach, effectively reducing the possibility of cross-infection.

[0023] Second, the innovative design of the suction unit allows the device to alternate between backflushing and extraction. Combined with the synergistic effect of air backflushing and the blinking mechanism, this significantly improves sample collection efficiency. The collection ball can be inserted into different locations within the rumen, ensuring greater uniformity and representativeness of the collected sample, thereby reducing the chance of randomness in test results and improving their accuracy and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 It is the front view of the present invention;

[0026] Figure 3 It is a left side view of the present invention;

[0027] Figure 4 For the present invention Figure 3 Cross-sectional view along AA;

[0028] Figure 5 For the present invention Figure 4 cutaway stereograms of perspective;

[0029] Figure 6 For the present invention Figure 3 Cross-sectional view along BB;

[0030] Figure 7 Schematic diagram of the explosion of the cover shell and the connecting shell of the present invention Figure 1 ;

[0031] Figure 8 Schematic diagram of the explosion of the cover shell and the connecting shell of the present invention Figure 2 .

[0032] In the figure: 1. Gun body; 2. Handle; 3. Extension tube; 4. Collection ball; 41. Cover shell; 42. Connecting shell; 5. Eyelid shell; 6. Connecting ring; 7. Connecting cover; 8. Collection bottle; 9. Straw; 10. Middle block; 11. First connecting rod; 12. Second connecting rod; 13. Adjustment bar; 14. Side shell; 15. Sliding frame; 16. Elastic tube; 17. Piston plate; 18. Rocker arm; 19. First flow channel; 20. Second flow channel; 21. Piston rod; 22. Spring; 23. Handle; 24. Voltage chamber; 25. Fixing rod. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] See also Figures 1 to 8 The present invention provides a technical solution: a sample collection device for veterinary examination, comprising a gun body 1, a handheld part 2 and an extension tube 3 that are assembled together, wherein a suction part is provided in the gun body 1, and further comprising:

[0035] A collection ball 4 is provided at the front end of the extension tube 3. The surface of the collection ball 4 is covered with filter holes connected to the suction part, and the filter holes are used to filter solid particles in the gastric juice;

[0036] An eye socket structure is arranged around the collecting ball 4, and the eye socket structure includes two eyelid shells 5 that can be opened or closed;

[0037] The blinking structure is used to control the opening and closing of the two eyelid shells 5. When the filter hole is blocked, the blinking structure drives the two eyelid shells 5 to open or close, and uses the inner part of the eyelid shells to scrape and clean the filter hole.

[0038] When using the sample collection device, the animal can first be properly restrained to keep it relatively quiet and stable to prevent it from struggling, which may cause difficulty in inserting the device or damage tissue near the fistula. At the same time, the device is disinfected to prevent cross-infection of samples and to prevent foreign microorganisms or bacteria from being introduced into the animal's rumen.

[0039] The experimenter holds the handheld part 2 and extends the extension tube 3 through the fistula into the rumen. The collection ball 4 at the front end is inserted into the solid-liquid mixture in the rumen. The gastric fluid in the rumen is extracted and collected through the suction part. At the same time, the filter holes on the collection ball 4 filter the food residue and solid particles in the gastric fluid to ensure that the collected rumen fluid is free of impurities and reduce the impact on subsequent test results.

[0040] Moreover, during the collection process, the blinking structure drives the two eyelid shells 5 to open or close the eyelids, thereby utilizing the inner part thereof to scrape and clean the filter holes, thereby restoring the patency of the filter holes and ensuring the continuity and efficiency of the collection work.

[0041] In this way, by simulating the blinking action of organisms, the filter pores can be cleaned to avoid blockage. This waterless cleaning method not only avoids the problems of gastric juice dilution and composition changes caused by the use of cleaning fluids in traditional cleaning methods, but also reduces the risk of external impurities and bacteria entering the stomach, reducing the possibility of cross-infection.

[0042] Furthermore, since the collection device can change its position in the animal's rumen during the collection process, the collected samples can be more uniform, and the subsequent test results can also reduce the randomness of the results and improve the accuracy.

[0043] In a further optional embodiment, an embodiment of a suction portion is provided;

[0044] The suction unit includes a sliding frame 15 mounted on the inner wall of the gun body 1 and capable of reciprocating sliding adjustment. Two piston plates 17 are slidably mounted on the inner wall of the sliding frame 15, and a pressure-changing chamber 24 is formed between the two piston plates 17. The opposite sides of the two piston plates 17 and the inner wall of the gun body 1 are both rotatably mounted with a rocker rod 18.

[0045] A connecting ring 6 is also fixed to the end of the gun body 1 and is sleeved on the outer wall of the extension tube 3. The bottom of the connecting ring 6 is integrally formed with a connecting cover 7 on which a collection bottle 8 can be installed and fixed. The side wall of the connecting cover 7 is also connected to a straw 9 connected to the inside of the pressure-changing chamber 24. A one-way valve is installed in the straw 9. A first flow channel 19 connected to the filter hole is opened in the extension tube 3. A second flow channel 20 connected to the first flow channel 19 is opened in the interior of the connecting cover 7. An elastic tube 16 that connects the first flow channel 19 and the pressure-changing chamber 24 is also installed in the interior of the gun body 1. A one-way valve in the opposite direction to that in the straw 9 is installed in the elastic tube 16.

[0046] For details, please refer to Figure 4-6After the extension tube 3 and the collection ball 4 are inserted into the rumen, the sliding frame 15 is controlled by the external structure to slide back and forth in the gun body 1. Under the connection of the swing rod 18, the two piston plates 17 are driven to move closer or farther from each other, thereby increasing or decreasing the air pressure in the pressure-changing chamber 24, thereby achieving the purpose of suction.

[0047] Among them, see Figure 6 When the sliding frame 15 slides in the direction away from the extension tube 3, the two piston plates 17 will first approach each other under the action of the swing rod 18, thereby reducing the space in the variable pressure chamber 24. The air therein will be squeezed out from the elastic tube 16 and back-flushed to the filter hole through the first flow channel 19. Secondly, when the swing rod 18 swings beyond the perpendicular state between it and the piston plate 17, the two piston plates 17 will begin to slide away from each other. At this time, the space in the variable pressure chamber 24 will expand and generate negative pressure. The negative pressure can be used to suck the gastric fluid through the first flow channel 19 and enter the collection bottle 8 through the second flow channel 20, completing the extraction process.

[0048] Similarly, when the sliding frame 15 slides toward the extension tube 3, the space inside the pressure-changing chamber 24 also decreases first and then increases. Similarly, the gas is exhausted and recoiled outwards first, and then the gastric juice is extracted, completing the secondary extraction process.

[0049] In this way, during the reciprocating sliding of the sliding frame 15, the recoil and extraction can be repeated alternately. The recoil of the air is combined with the blinking action of the eyelid shell 5, which can also help to recoil the impurities at the closing seam of the eyelid shell 5, thereby achieving the purpose of improving the cleaning effect.

[0050] Moreover, it is worth mentioning that since the air backwash occurs before the extraction process, and the collection ball 4 is extended into the solid-liquid mixture in the rumen, the solid impurities at the filter hole position can be squeezed outward during the air backwash process, thereby reducing the solid impurities around the filter hole. This can also reduce the contact between the impurities and the filter hole during suction, further improving the efficiency of sample extraction.

[0051] In a further optional embodiment, an implementation of a blinking structure is provided;

[0052] The blinking structure includes a middle block 10 slidably mounted on the outer wall of the extension tube 3, a first connecting rod 11 is rotatably connected between the middle block 10 and the two eyelid shells 5, side shells 14 are fixed on both sides of the gun body 1, and adjustment bars 13 are horizontally slidably mounted in the two side shells 14, and a second connecting rod 12 is rotatably connected between the adjustment bar 13 and the middle block 10;

[0053] The outer wall of the adjustment bar 13 is provided with a long groove, and the outer wall of the piston plate 17 is fixed with a fixing rod 25 with one end extending into the side shell 14, and the end of the fixing rod 25 is fixed with a pin slidably installed in the long groove. The outer walls of the gun body 1 and the sliding frame 15 are provided with a sliding groove for the movement of the fixing rod 25.

[0054] For details, please refer to Figure 1 and Figure 5 As can be seen from the above, when the sliding frame 15 moves, it drives the rocker arm 18 to rotate, and the rotation of the rocker arm 18 causes the piston plate 17 to be divided into two stages, one is the exhaust recoil stage, and the other is the suction stage;

[0055] During the exhaust backwash stage, the two piston plates 17 move closer to each other, which in turn drives the two adjustment bars 13 to slide closer to each other through the fixed rod 25, thereby driving the middle block 10 to move closer to the collection ball 4 through the second connecting rod 12. Then, under the action of the first connecting rod 11, the two eyelid shells 5 rotate relative to each other, and the closing action is completed synchronously, thereby achieving the purpose of cleaning the filter holes and utilizing the airflow backwash;

[0056] On the contrary, during the suction stage, the two piston plates 17 move away from each other, which will drive the two eyelid shells 5 to rotate away from each other through the cooperation between the connecting rods, so as to complete the opening action synchronously, thereby exposing more filter holes for suction;

[0057] In this way, through the cooperation between the blinking structure and the suction part, the contact between impurities and the filter holes during suction can be further reduced, thereby improving the efficiency of sample extraction.

[0058] Moreover, it is worth mentioning that the fixing rod 25 can drive the adjustment bars 13 to move closer to or away from each other synchronously during the movement through the sliding fit between the pin and the long slot, thereby preventing interference in the stroke.

[0059] In a further optional embodiment, an implementation method is provided in which the sliding frame 15 can be manually controlled to slide back and forth;

[0060] The end of the sliding frame 15 away from the extension tube 3 is connected to the piston rod 21, and the end of the piston rod 21 that penetrates into the hand-held part 2 is formed with a handle 23. A spring 22 is installed between the sliding frame 15 and the inner wall of the gun body 1 and is sleeved on the piston rod 21.

[0061] See Figure 4The experimenter holds the hand-held part 2, and then repeatedly pinches the handle 23 with his fingers to drive the piston rod 21 and the sliding frame 15 to move. With the recovery effect of the spring 22, the sliding frame 15 can be moved back and forth. This manual pinching method is not only simple to operate, but also reduces the design of other driving sources, reduces the weight of the hand-held part 2 and the gun body 1, and makes one-handed operation more convenient.

[0062] In a further optional embodiment, the collecting ball 4 is composed of a cover shell 41 and a connecting shell 42, the connecting shell 42 is integrally connected to the extension tube 3, a spherical cavity is provided inside the cover shell 41 and the connecting shell 42, and the spherical cavity is filled with filter cotton, and the two eyelid shells 5 are rotatably mounted on the connecting shell 42.

[0063] See Figure 7 and Figure 8 The collecting ball 4 is divided into a cover shell 41 and a connecting shell 42, which is not only convenient for disassembly and replacement, but also convenient for cleaning to avoid cross infection. Moreover, the internal filter cotton filling can further filter the extracted rumen fluid, thereby improving the purity of the rumen fluid.

[0064] In a further optional embodiment, the inner wall of the cover opening of the connecting cover 7 is provided with a thread, and the cover opening is set to be stepped, and the connection between the straw 9 and the connecting cover 7 is located at the inner step, and the collection bottle 8 can be easily installed by means of the thread, and see Figure 4 The installation position of the suction tube 9 can also prevent rumen fluid from being drawn into the pressure changing chamber 24 during the suction process.

[0065] In a further optional embodiment, the elastic tube 16 is provided with a reserved section in the gun body 1 .

[0066] In a further optional embodiment, the outer wall of the handle 23 is provided with grooves for finger gripping, and the outer wall of the hand-held portion 2 is provided with anti-slip lines.

[0067] In a further optional embodiment, the inner portion of the eyelid shell 5 is configured as a soft structure, and the soft structure is a protrusion or bristle made of silicone material.

[0068] In a further optional embodiment, a second embodiment of the suction portion is provided;

[0069] The suction part includes a suction pump installed in the gun body 1, and the suction end of the suction pump is communicated with the filter hole on the collection ball 4 to form a suction channel.

[0070] The extraction method using the existing suction pump can reduce manual operation of personnel compared to the above-mentioned manual suction method, but it may increase the weight and structural complexity of the overall device. The specific structure involves existing technology and is therefore not shown in the figure. The specific structure can be selected according to the target animal species.

[0071] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and drawings can also be directly processed according to existing technical common sense without any doubt. At the same time, the connection method of each component adopts the mature conventional means in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so no specific description will be given here.

[0072] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A sample collection device for veterinary examination, comprising a gun body (1), a handheld portion (2) and an extension tube (3) assembled together, characterized in that: The gun body (1) is provided with a suction portion, and further comprises: A collection ball (4) is provided at the front end of the extension tube (3), wherein the surface of the collection ball (4) is covered with filter holes connected to the suction part, and the filter holes are used to filter solid particles in the gastric juice; An eye socket structure is arranged around the collecting ball (4), and the eye socket structure includes two eyelid shells (5) that can be opened or closed; A blinking structure for controlling the opening and closing of two eyelid shells (5); when the filter hole is clogged, the blinking structure drives the two eyelid shells (5) to open or close, and uses the inner part thereof to scrape and clean the filter hole.

2. The veterinary test sample collection device according to claim 1, characterized in that: The suction part includes a sliding frame (15) mounted on the inner wall of the gun body (1) and capable of reciprocating sliding adjustment, two piston plates (17) are slidably mounted on the inner wall of the sliding frame (15), and a variable pressure chamber (24) is formed between the two piston plates (17), and rocker rods (18) are rotatably mounted on the opposite back surfaces of the two piston plates (17) and the inner wall of the gun body (1); The end of the gun body (1) is also fixed with a connecting ring (6) sleeved on the outer wall of the extension tube (3), and the bottom of the connecting ring (6) is integrally formed with a connecting cover (7) capable of installing and fixing the collection bottle (8), and the side wall of the connecting cover (7) is also connected to a suction pipe (9) connected to the inside of the pressure-changing chamber (24), and a one-way valve is installed in the suction pipe (9), and a first flow channel (19) connected to the filter hole is opened in the extension tube (3), and a second flow channel (20) connected to the first flow channel (19) is opened in the interior of the connecting cover (7). An elastic tube (16) is also installed inside the gun body (1) to connect the first flow channel (19) and the pressure-changing chamber (24), and a one-way valve in the opposite direction to that in the suction pipe (9) is installed in the elastic tube (16).

3. The veterinary test sample collection device according to claim 2, characterized in that: The blinking structure comprises an intermediate block (10) slidably mounted on the outer wall of the extension tube (3), a first connecting rod (11) is rotatably connected between the intermediate block (10) and the two eyelid shells (5), side shells (14) are fixed on both sides of the gun body (1), an adjustment bar (13) is horizontally slidably mounted in the two side shells (14), and a second connecting rod (12) is rotatably connected between the adjustment bar (13) and the intermediate block (10); The outer wall of the adjustment bar (13) is provided with a long groove, the outer wall of the piston plate (17) is fixed with a fixing rod (25) with one end extending into the side shell (14), and the end of the fixing rod (25) is fixed with a pin slidably installed in the long groove, and the outer walls of the gun body (1) and the sliding frame (15) are both provided with a sliding groove for the fixing rod (25) to move.

4. The veterinary test sample collection device according to claim 2, characterized in that: The end of the sliding frame (15) away from the extension tube (3) is connected to a piston rod (21), and the end of the piston rod (21) that penetrates into the hand-held part (2) is formed with a handle (23), and a spring (22) is installed between the sliding frame (15) and the inner wall of the gun body (1) and is sleeved on the piston rod (21).

5. The veterinary test sample collection device according to claim 1, characterized in that: The collecting ball (4) is composed of a cover shell (41) and a connecting shell (42), the connecting shell (42) is integrally connected to the extension tube (3), a spherical cavity is provided inside the cover shell (41) and the connecting shell (42), and the spherical cavity is filled with filter cotton, and the two eyelid shells (5) are rotatably mounted on the connecting shell (42).

6. The veterinary test sample collection device according to claim 2, characterized in that: The inner wall of the cover opening of the connecting cover (7) is provided with a thread, and the cover opening is arranged in a stepped shape, and the connection point between the straw (9) and the connecting cover (7) is located at the inner step.

7. The veterinary test sample collection device according to claim 2, characterized in that: The elastic tube (16) is provided with a reserved section in the gun body (1).

8. The veterinary test sample collection device according to claim 4, characterized in that: The outer wall of the handle (23) is provided with grooves for finger gripping, and the outer wall of the hand-held portion (2) is provided with anti-slip lines.

9. The veterinary test sample collection device according to any one of claims 1 to 8, characterized in that: The inner side of the eyelid shell (5) is configured as a soft structure, and the soft structure is a protrusion or bristle made of silicone material.

10. The veterinary test sample collection device according to claim 1, characterized in that: The suction part includes a suction pump installed in the gun body (1), and the suction end of the suction pump is connected to the filter hole on the collection ball (4) to form a suction channel.

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