Poultry cloaca swab deep sampling device

Abstract

The invention provides a poultry cloaca swab deep part sampling device. The poultry cloaca swab deep part sampling device comprises a sampling tube part, a ball head part, an operation tube part, a multi-joint type sampling assembly, a multi-purpose clamping sleeve part, a sample bearing part and a sampling bottle, an openable silica gel sheet is arranged at the head end of the ball head part; the multi-joint sampling assembly can be accommodated in a channel of the sampling tube part and the operation tube part; the multipurpose clamping sleeve part is of a closing-up structure and can be respectively clamped with the sampling tube part and the hard tube; during sampling, the position of the multi-purpose clamping sleeve part on the sampling tube part is adjusted to control the insertion depth, the multi-joint sampling assembly is pushed after insertion to enable the sampling head to extend out of the silica gel sheet, and deep mucous membrane tissue is collected through rotary scraping; after sampling, the sampling head is pulled back, the multipurpose clamping sleeve part is moved to the tail end of the hard tube, the sampling head is pulled to enable the clamping part to be aligned with the pressing column, and the pressing elastic piece is pressed to enable the sampling head to be separated from and fall into the sampling bottle; the insertion depth of the device is controllable, damage is avoided, the sampling head can be bent to the deep part, manual contact is not needed during sample transfer, and pollution is avoided.

Description

Technical Field

[0001] This invention relates to the field of poultry medical device technology, and in particular to a deep sampling device for poultry cloacal swabs. Background Technology

[0002] In poultry disease prevention and monitoring, sampling of the deep cloacal mucosa is a crucial step in pathogen detection. Currently, the commonly used sampling tool is a cotton swab, which is usually inserted manually into the cloaca of poultry to obtain mucosal samples through scraping.

[0003] However, existing sampling methods have the following shortcomings: First, the cloaca to the intestine has a natural curve, while traditional swabs are straight rods, making it difficult to follow the curve to reach the deep target area. This results in insufficient contact between the sampling head and the mucosa, leading to a low sampling success rate, especially when deep cell samples are required. Second, during the sampling process, the swab head is always exposed to the outside or non-target cavity areas during insertion and withdrawal, making it susceptible to contamination or premature sample detachment, affecting the accuracy and reliability of the test results. Third, after sampling, the swab head needs to be manually cut off or directly placed into the sampling tube, making the sample susceptible to secondary contamination during the operation. Summary of the Invention

[0004] The purpose of this invention is to provide a deep sampling device for cloacal swabs in poultry, which aims to solve the problems of uncontrollable sampling depth, difficulty in conforming to curved channels, and easy contamination of samples in existing operations.

[0005] The objective of this invention is achieved through the following technical solution: a deep sampling device for cloacal swabs in poultry, comprising a sampling tube, a bulb head, an operating tube, a multi-joint sampling assembly, a multi-purpose ferrule, a sample receiving part, and a sampling bottle; A ball head is fixedly attached to the head end of the sampling tube. The ball head includes a silicone sheet, which is fixedly attached to the head end of the ball head. The operating tube section includes a rigid tube, the head end of which is fixedly connected to the end of the sampling tube section, and an end sleeve is fixed to the outer wall of the end of the rigid tube. The multi-joint sampling assembly includes a sampling head, a first end section, and a last end section. The first end section and the last end section are connected by connecting sections in an arranged manner. The last end of the sampling head is detachably snapped onto the first end section. The multi-section series hinged structure composed of the last end section, connecting sections, and first end section, together with the sampling head, is slidably housed in a channel composed of a rigid tube and a sampling tube section. The multi-purpose ferrule includes an open-type ferrule and a pressing post; the sample receiving part includes a receiving seat; and the sampling bottle includes a bottle body. The open-type ferrule has a closed-end structure. The main body is connected to a spring that opens elastically. The pressing post is fixed to the inner side of the pressing spring. The receiving seat is connected to the outer wall of the end of the rigid tube. The inlet position of the bottle can form an interference fit with the outlet position of the receiving seat. The multi-purpose clamping part can form a clamping fit with both the outer wall of the sampling tube and the outer wall of the end of the rigid tube.

[0006] The process of using the technical solution of the present invention is as follows: Before use, the operator should adjust the position of the multi-purpose sleeve on the outer wall of the sampling tube according to the size of the poultry and the required sampling depth. Before insertion, ensure that the multi-section series hinged structure consisting of the end section, connecting section and the beginning section, together with the sampling head, is located in the channel formed by the rigid tube and the sampling tube section, and that the sampling head does not protrude from the silicone sheet. During insertion, hold the operating tube and insert the ball head and sampling tube into the cloaca of the bird. When it reaches the predetermined position, use the ferrule to stop it at the entrance of the cloaca. Push the end section column, and use the multi-section series hinged structure composed of the end section column, connecting section column and the head section column to drive the sampling head at the head end of the head section column to extend out from the silicone sheet; After the sampling head extends from the silicone sheet into the depth of the cloaca of poultry, in order to ensure the success rate of sampling, the operator needs to hold the operating tube or the end segment and rotate it clockwise and counterclockwise while keeping the sampling head extended. The friction generated by the rotation will allow the fibers or material on the surface of the sampling head to fully scrape the mucous membrane tissue deep in the cloaca, ensuring that the cells detach and adhere to the sampling head, rather than just contacting the surface. After sampling is completed, while keeping the positions of the operating tube, sampling tube and ball head unchanged, pull the end section outward to retract the sampling head into the ball head or sampling tube. Subsequently, the operating tube, sampling tube, and bulb head, along with the multi-joint sampling assembly, are removed from the poultry body. The multi-purpose ferrule is then removed from the sampling tube and reattached to the outer wall of the end of the operating tube, so that one end of the open ferrule is in a limiting contact with the end sleeve. The end segment is then pulled outward again until the engagement position between the end of the sampling head and the first end segment moves directly below the pressing column. After that, press the pressing spring forcefully to drive the pressing column downward to squeeze the locking part of the sampling head, forcing the sampling head to separate from the first end column. Under the action of gravity, the sampling head carrying the sample falls into the sampling bottle that has been installed on the sample receiving part, completing the automatic collection of the sample.

[0007] By adopting the above technical solution, the present invention can produce the following beneficial effects: (1) The insertion depth of the sampling tube is controllable. By adjusting the snap-fit ​​position of the multi-purpose sleeve on the outer wall of the sampling tube, the multi-purpose sleeve is used to stop at the cloacal inlet as a physical limit, which can accurately limit the insertion depth of the sampling tube and the bulb head. At the same time, the sampling tube with a certain degree of flexibility can effectively avoid mechanical damage to the poultry intestine. Furthermore, before reaching the sampling position, the sampling head is hidden in the bulb head or the sampling tube, which can ensure that the sampling head will not come into contact with other positions before reaching the sampling position, thus improving the accuracy of sampling. (2) The sampling head of the present invention is connected to the head end of a multi-section series hinged structure consisting of the end section column, the connecting section column and the head section column, so that the sampling head can reach the deep target area smoothly in the curved channel. During the sampling process, the operator can rotate the operating tube or the end section column to drive the sampling head to reciprocate and scrape in the deep area by rotating the series hinged structure consisting of the end section column, the connecting section column and the head section column, so as to fully obtain mucosal cells and improve the sampling success rate. After the sampling is completed, the sampling head can be completely retracted into the ball head or the sampling tube by pulling back the end section column. The ball head or the sampling tube protects the collected sample and prevents the sample from falling off or being contaminated by the external environment during the withdrawal process, thus ensuring the reliability of the test results. (3) The present invention also creatively utilizes another function of the multi-purpose sleeve. After moving it from the sampling tube to the end of the rigid tube, the multi-joint sampling assembly is rotated and adjusted so that the sampling head locking part is aligned with the pressing column. Pressing the pressing spring drives the pressing column to press down, which forces the sampling head to disengage from the first end column, so that the sampling head falls into the bottle under the action of gravity. This process does not require manual contact with the sample, eliminating the risk of contamination during the sample transfer process. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the sampling tube, ball head, operating tube, and sample receiving part of the present invention. Figure 3 This is a schematic diagram of the structure of the ball head of the present invention; Figure 4 This is a schematic diagram of the structure of the multi-purpose card sleeve part of the present invention; Figure 5 This is a cross-sectional schematic diagram of the multi-purpose card sleeve portion of the present invention; Figure 6 This is a schematic diagram of the assembly of the multi-joint sampling component of the present invention with the ball head, sampling tube section and operating tube section; Figure 7 This is an exploded structural diagram of the sampling head and the first end section of the present invention; Figure 8 This is a schematic diagram showing the connection of each column of the multi-joint sampling assembly of the present invention; Figure 9 This is a schematic diagram of the structure of the multi-purpose sleeve part and the sampling tube part of the present invention. Figure 10 This is a front view of the operating tube of the present invention; Figure 11 This is an exploded structural diagram of the assembly of the multi-purpose ferrule part and the rigid tube part of the present invention; Figure 12 This is a schematic diagram of the multi-purpose sleeve part of the present invention detaching the sampling head into the sampling bottle; Figure 13 This is a schematic diagram of the structure of the detachment and positioning part of the present invention.

[0010] Figure label: 1. Sampling tube section; 2. Ball head; 3. Operating tube section; 4. Multi-joint sampling assembly; 5. Multi-purpose ferrule section; 6. Sample receiving section; 7. Sampling bottle; 8. Removal and positioning section; 101. Flexible sampling tube; 102. Scale line; 201. Rigid ball head; 202. Silicone sheet; 203. Connector; 204. Cross groove; 301. Rigid tube; 302. End sleeve; 303. Press-opening; 401. Sampling head; 402. First end section; 403. Connecting section; 404. Last end section; 405. Clamping post; 406. Clamping platform; 407. Slot; 408. First end female screw seat; 409. Connecting female screw seat; 410. Connecting female screw seat; 411. End female screw seat; 412. Operating handle body; 501. Open-type sleeve; 502. Pressing position; 503. Pressing spring; 504. Pressing post; 601. Receiver; 602. Column sleeve; 603. Snap-fit ​​groove; 701. Bottle body; 702. Soft strap; 703. Bottle stopper; 704. Snap-fit ​​sleeve; 801. Annular groove; 802. Positioning hole; 803. Spring buckle groove; 804. Elastic piece; 805. Positioning snap post. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0012] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0013] Example 1: Examples of the sampling operation of this invention Figures 1-13 As shown, a ball head 2 is fixedly connected to the head end of the sampling tube 1. The ball head 2 includes a silicone sheet 202, which is fixedly connected to the head end of the ball head 2 and can be opened and closed. The head end of the rigid tube 301 in the operating tube section 3 is fixedly connected to the end of the sampling tube section 1, and a non-closed-loop end sleeve 302 is fixed to the outer wall of the end of the rigid tube 301. In the multi-joint sampling assembly 4, the head end of the end segment 404 and the end of the first end segment 402 are connected by a connecting segment 403 in an arranged manner. The end of the sampling head 401 is detachably snapped into the head end of the first end segment 402. The multi-section series hinge structure composed of the end segment 404, the connecting segment 403 and the first end segment 402, together with the sampling head 401, is slidably accommodated in the channel composed of the rigid tube 301 and the sampling tube 1, and is a sliding fit with preset damping characteristics. The open-type ferrule 501 in the multi-purpose ferrule part 5 has a closed structure. The middle of its main body is connected to an elastically opening pressing spring 503. The pressing post 504 is fixed to the inner side of the pressing spring 503. The receiving seat 601 in the sample receiving part 6 is connected to one side of the outer wall of the end of the rigid tube 301. The inlet position of the bottle body 701 in the sampling bottle 7 can form an interference fit with the outlet position of the receiving seat 601. The multi-purpose sleeve part 5 can form a snap-fit ​​with the outer wall of the sampling tube part 1, and can also form a snap-fit ​​with the outer wall of the end of the rigid tube 301. During the sampling process, when the multi-purpose sleeve 5 and the outer wall of the sampling tube 1 form a snap-fit ​​engagement, the pressing column 504 can squeeze the outer wall of the sampling tube 1 under the action of the pressing spring 503. At this time, the multi-purpose sleeve 5 can be used as an external positioning tool for the sampling tube 1 and the ball head 2 to be inserted into the cloaca of poultry at different depths. After sampling is completed, when the multi-purpose sleeve 5 and the outer wall of the end of the rigid tube 301 form a snap-fit ​​engagement, the end section 404 is pulled outward, so that the snap-fit ​​position between the end of the sampling head 401 and the head of the first end section 402 moves to directly below the pressing column 504. By pressing the pressing spring 503, the pressing column 504 can squeeze the end of the sampling head 401, causing the sampling head 401 to disengage from the first end section 402, so that the sampling head 401 falls downward into the bottle body 701 after sampling is completed. The working principle is as follows: Before use, the operator adjusts the position of the multi-purpose sleeve 5 on the outer wall of the sampling tube 1 according to the size of the poultry and the required sampling depth. Before insertion, ensure that the multi-section series hinged structure consisting of the end section 404, the connecting section 403 and the beginning section 402, together with the sampling head 401, is located in the channel consisting of the rigid tube 301 and the sampling tube section 1, and that the sampling head 401 does not protrude from the silicone sheet 202. During insertion, hold the operating tube 3 and insert the ball head 2 and sampling tube 1 into the cloaca of the poultry. When it reaches the predetermined position, use the ferrule 5 to stop at the entrance of the cloaca of the poultry. Push the end segment 404, and use the multi-segment series hinge structure composed of the end segment 404, the connecting segment 403 and the first end segment 402 to drive the sampling head 401 at the head end of the first end segment 402 to extend out from the silicone sheet 202. After the sampling head 401 extends out of the silicone sheet 202 and enters the depth of the cloaca of poultry, in order to ensure the success rate of sampling, the operator needs to hold the operating tube 3 or the end segment 404 and rotate it clockwise and counterclockwise while keeping the sampling head 401 extended. The friction generated by the rotation will allow the fibers or materials on the surface of the sampling head 401 to fully scrape the mucous membrane tissue deep in the cloaca, ensuring that the cells detach and adhere to the sampling head, rather than just contacting the surface. After sampling is completed, while the positions of the operating tube 3, the sampling tube 1 and the ball head 2 remain unchanged, pull the end section column 404 outward so that the sampling head 401 is retracted into the ball head 2 or the sampling tube 1. Subsequently, the operating tube 3, sampling tube 1, and ball head 2, along with the multi-joint sampling assembly 4, are removed from the poultry body. The multi-purpose ferrule 5 is removed from the sampling tube 1 and reattached to the outer wall of the end of the operating tube 3, so that one end of the open ferrule 501 and the end sleeve 302 form a limiting contact. The end segment 404 is pulled outward again until the snapping position of the end of the sampling head 401 and the first end segment 402 moves directly below the pressing column 504. During this process, in order to make the disengagement force application part of the snapping position of the end of the sampling head 401 and the first end segment 402 face the pressing column 504, the multi-joint sampling assembly 4 needs to be rotated or moved. After that, press the pressing spring 503 forcefully, drive the pressing column 504 to press down on the locking part of the sampling head 401, forcing the sampling head 401 to separate from the first end column 402. Under the action of gravity, the sampling head carrying the sample falls into the sampling bottle 7 that has been installed on the sample receiving part 6, completing the automatic collection of the sample.

[0014] The specific structure of the sampling tube section 1, the ball head section 2, the operating tube section 3, the multi-purpose sleeve section 5, the sample receiving section 6, and the sampling bottle 7 is as follows: Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown, the sampling flexible tube 101 is the main body of the sampling tube section 1, and it is made of medical-grade thermoplastic polyurethane or silicone. The end of the sampling flexible tube 101 is fixed to the head end of the rigid tube 301. The scale line 102 is set on the outer wall of the sampling flexible tube 101 and can cooperate with the multi-purpose sleeve part 5. The scale line 102 represents the insertion depth value (in millimeters) measured from the head end of the ball head 2. Before use, the operator slides the multi-purpose sleeve part 5 on the outer wall of the sampling flexible tube 101 according to the target depth required for the test. After aligning the reading reference on the open-type sleeve 501 with the scale line 102 of the target depth on the outer wall of the sampling flexible tube 101, the multi-purpose sleeve part 5 is fixed by using the pressing post 504 to lock the outer wall of the sampling flexible tube 101. The rigid ball head 201 is the main body of the ball head 2. The silicone sheet 202 is fixed to the head end of the rigid ball head 201. The rigid ball head 201 is fixed to the head end of the sampling flexible tube 101 through the plug-in seat 203. The main body of the silicone sheet 202 has a cross groove 204 for the sampling head 401 to pass through. The cross groove 204, with the silicone sheet 202 as the main body, forms an elastic opening and closing structure. Utilizing the elastic recovery force of the silicone sheet 202 material itself, the cross groove 204 fits tightly without external force, forming a closed state. When the sampling head 401 presses against the center of the cross groove 204, the groove opening elastically opens to all sides, providing a channel for the sampling head 401. The pressing opening 303 is opened on the other side of the outer wall of the end of the rigid tube 301 to provide a channel for the pressing column 504 to press the sampling head 401 into the snap-fit ​​position. The pressing position 502 is located in the middle of the main body of the open-type sleeve 501. One end of the pressing spring 503 is fixed to one side of the inner wall of the pressing position 502. The pressing spring 503 is integrally formed with the pressing position 502. In the free and relaxed state, the pressing spring 503 opens outward to a certain angle relative to the pressing position 502, so that the multi-purpose sleeve part 5 can not only adapt to the snap-fit ​​with the outer wall of the sampling flexible tube 101 through the pressing post 504, but also adapt to the disengagement of the sampling head 401 in the snap-fit ​​state. The cylindrical sleeve 602 is fixedly connected to the outlet position of the receiving seat 601, and the snap-fit ​​groove 603 is opened in the inner ring of the cylindrical sleeve 602; The main body of the open-type ferrule 501 is a locking structure with a certain angle. The outer side of the main body of the receiving seat 601 is tapered according to the angle, so that when the multi-purpose ferrule part 5 and the end of the operating tube part 3 are engaged, the open-type ferrule 501 can be matched with the receiving seat 601 to form a tapered wedge connection, preventing the open-type ferrule 501 from detaching from the outer wall of the end of the rigid tube 301 and the receiving seat 601 without cause. Furthermore, the locking structure of the open-type ferrule 501 itself can withstand the pressing post 504 to lock the sampling flexible tube 101, maintaining the stability of the connection between the open-type ferrule 501 and the sampling flexible tube 101. The stopper 703 is connected to the outer wall of the bottle body 701 via a flexible band 702, which can form a seal on the opening of the bottle body 701; The snap-fit ​​sleeve 704 is fixed to the outer wall of the opening of the bottle body 701. The bottle body 701 can form an interference fit with the snap-fit ​​groove 603 by means of the snap-fit ​​sleeve 704. The outer wall of the opening end of the bottle body 701 and the inner wall of the cylindrical sleeve 602 have a mutually compatible conical structure, which makes it convenient for the bottle body 701 to be quickly inserted into the cylindrical sleeve 602.

[0015] The specific structure of the multi-joint sampling component 4 is as follows: Figure 6 , Figure 7 and Figure 8 As shown, the locking pins 405 are symmetrically fixed to the end of the sampling head 401. The head end of the first end section 402 is symmetrically fixed with locking platforms 406. Each set of locking platforms 406 has a locking groove 407 on one side. The sampling head 401 is elastically locked with the locking pins 405 and the locking grooves 407. The direction of movement of the sampling head 401 in the ball head 2, the sampling tube 1 or the rigid tube 301 is theoretically perpendicular to the direction of the locking pins 405 disengaging from the locking grooves 407. This ensures that the pushing and pulling action of the first end section 402 on the sampling head 401 will not affect the locking action of the locking pins 405 and the locking grooves 407. The end of the first segment 402 is fixedly connected to the first female screw seat 408, the head end of the connecting segment 403 is fixedly connected to the connecting female screw seat 409, the end is fixedly connected to the connecting female screw seat 410, the end female screw seat 411 is fixedly connected to the head end of the end segment 404, and the operating handle 412 is fixedly connected to the end of the end segment 404. The first female screw seat 408 is screwed to the first connecting section post 403's connecting sub-screw seat 409. Adjacent connecting sections post 403 are screwed together by the previous level connecting female screw seat 410 and the next level connecting sub-screw seat 409. The last level connecting section post 403's connecting female screw seat 410 is screwed to the end sub-screw seat 411. The operator can move the multi-section series hinged structure consisting of the end section 404, the connecting section 403 and the head section 402 together with the sampling head 401 in the channel formed by the sampling flexible tube 101 and the rigid tube 301 by pushing or pulling the operating handle 412.

[0016] Example 2: Based on Embodiment 1, the present invention utilizes the detachment positioning part 8 to improve the detachment accuracy of the sampling head 401 after sampling. For example... Figure 1 , Figure 7 , Figure 11 , Figure 12 and Figure 13 As shown, the annular groove 801 in the detachment positioning part 8 is formed around the end body of the first end section 402, and the positioning hole 802 is formed at the top of the annular groove 801. A spring-loaded groove 803 is provided on the other side of the outer wall of the end of the rigid tube 301. One end of the elastic piece 804 is fixed to one side of the inner wall of the spring-loaded groove 803, and the positioning pin 805 is fixed to the inner side of the elastic piece 804. Similarly, the elastic piece 804 is integrally formed with the spring clip groove 803. In the free and relaxed state, the elastic piece 804 opens outward to a certain angle relative to the spring clip groove 803. Add a detachment positioning part 8. After sampling, the snap-fit ​​position of the end of the sampling head 401 and the head of the first end section 402 can be moved to a position that is directly opposite the pressing opening 303. At this time, it is visually observed that the end face of the first end section 402 is just flush with the outer end face of the end sleeve 302. When the open-type ferrule 501 is inserted into the outer wall of the end of the rigid tube 301 and the receiving seat 601, it can just press the elastic piece 804, causing the elastic piece 804 to change from a freely open state to an elastically retracted state. The reverse supporting elastic force formed by the elastic piece 804 on the open-type ferrule 501 is insufficient to cause the open-type ferrule 501 to detach from the end of the rigid tube 301. At this time, the positioning pin 805 can be inserted into the annular groove 801. If the preset position of the first end section 402 is inaccurate and it cannot be inserted into the annular groove 801, the positioning pin 805 will inevitably be located in the screw connection gap between the end of the first end section 402 and the head of the first connecting section 403 or outside the end of the first end section 402. This is caused by visually misalignment between the end face of the first end section 402 and the outer end face of the end sleeve 302. By gently pushing or pulling the first end section 402, the annular groove 801 can be moved to the position where it engages with the retracted positioning pin 805. Subsequently, by rotating the first end section 402, it is rotated to the position where the positioning hole 802 and the positioning pin 805 are engaged. Since the elastic piece 804 provides inward support elastic force for the positioning pin 805, the cooperation between the positioning pin 805 and the annular groove 801 and the positioning pin 805 and the positioning hole 802 can generate a certain force, so that the operator can clearly feel that the positioning pin 805 has been engaged in the annular groove 801 or the positioning hole 802. Furthermore, to facilitate observation and differentiation by the operator, the rigid tube 301 can be made of transparent material, and the first end section 402 can be made of a different color from the other sections. After the positioning pin 805 is inserted into the positioning hole 802, the position of the pressing pin 504 is exactly aligned with the gap between the platen 406. At this time, by pressing the pressing spring 503, the pressing pin 504 can enter the gap between the platen 406 through the pressing opening 303 and squeeze the end of the sampling head 401, causing the pin 405 to disengage from the slot 407.

[0017] In addition, in this sampling device, the sampling head 401 and the sampling bottle 7 are disposable consumables, while the other components are reusable instruments. In batch sampling operations, after the sampling operation of the previous case is completed, the sampling head 401 falls into the sampling bottle 70 sealed by the bottle stopper 703. The reusable instrument part is wiped with alcohol or sterilized by high temperature and high pressure. Then, a new sampling head 401 and sampling bottle 7 can be assembled for the next case sampling.

[0018] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A deep sampling device for cloacal swabs in poultry, comprising a sampling tube (1), characterized in that: It also includes an operating tube (3), a multi-joint sampling assembly (4), a multi-purpose sleeve (5), a sample receiving part (6), and a sampling bottle (7). A ball head (2) is fixedly connected to the head end of the sampling tube (1). The ball head (2) includes a silicone sheet (202) which is fixedly connected to the head end of the ball head (2). The operating tube section (3) includes a rigid tube (301), the head end of which is fixedly connected to the end of the sampling tube section (1). An end sleeve (302) is fixed to the outer wall of the end of the rigid tube (301). The multi-joint sampling assembly (4) includes a sampling head (401), a first end section (402), and a last end section (404). A connecting section (403) is screwed between the head end of the last end section (404) and the end of the first end section (402). The end of the sampling head (401) is detachably snapped to the head end of the first end section (402). The multi-section series hinged structure composed of the last end section (404), the connecting section (403), and the first end section (402), together with the sampling head (401), is slidably accommodated in the rigid tube (301) and the sampling tube section. (1) The multi-purpose sleeve part (5) includes an open-type sleeve (501) and a pressing post (504) in the channel. The sample receiving part (6) includes a receiving seat (601). The sampling bottle (7) includes a bottle body (701). The open-type sleeve (501) has a closed structure. A pressing spring (503) with elastic opening is connected in the middle of its main body. The pressing post (504) is fixed to the inner side of the pressing spring (503). The receiving seat (601) is connected to the outer wall of the end of the rigid tube (301). The inlet position of the bottle body (701) can form an interference fit with the outlet position of the receiving seat (601). The multi-purpose sleeve part (5) can form a snap fit with the outer wall of the sampling tube part (1) and also form a snap fit with the outer wall of the end of the rigid tube (301).

2. The cloacal swab deep sampling device for poultry according to claim 1, characterized in that: The sampling tube section (1) includes a sampling flexible tube (101) and a scale line (102). The end of the sampling flexible tube (101) is fixedly connected to the head end of the rigid tube (301), and the scale line (102) is located on the outer wall of the sampling flexible tube (101).

3. The cloacal swab deep sampling device for poultry according to claim 2, characterized in that: The ball head (2) also includes a rigid ball head (201) and a connector (203). The silicone sheet (202) is fixed to the head end of the rigid ball head (201). The rigid ball head (201) is fixed to the head end of the sampling flexible tube (101) through the connector (203). A cross groove (204) is provided in the body of the silicone sheet (202).

4. A deep sampling device for cloacal swabs of poultry according to claim 1, 2 or 3, characterized in that: The operating tube (3) also includes a pressing opening (303), which is located on the other side of the outer wall of the end of the rigid tube (301).

5. A deep sampling device for cloacal swabs of poultry according to claim 1, 2 or 3, characterized in that: The multi-joint sampling assembly (4) also includes a locking post (405), an end sub-rotor (411), and an operating handle (412). The locking posts (405) are symmetrically fixed to the end of the sampling head (401). The head end of the first end section (402) is symmetrically fixed with a locking platform (406). Each locking platform (406) has a locking groove (407) on one side. The sampling head (401) is elastically engaged with the locking post (405) and the locking groove (407). The end of the first end section (402) is fixed with a first end female rotor (408). The head end of the connecting section (403) is fixed with a connector. The rotating seat (409) has a connecting female rotating seat (410) fixedly connected to its end, and a terminal female rotating seat (411) fixedly connected to the head end of the terminal section (404). The operating handle (412) is fixedly connected to the end of the terminal section (404). The first terminal female rotating seat (408) is screwed to the connecting female rotating seat (409) of the first connecting section (403). Adjacent connecting sections (403) are screwed together by the connecting female rotating seat (410) of the previous stage and the connecting female rotating seat (409) of the next stage. The connecting female rotating seat (410) of the last stage connecting section (403) is screwed to the terminal female rotating seat (411).

6. A deep sampling device for cloacal swabs of poultry according to claim 1, 2 or 3, characterized in that: The multi-purpose sleeve part (5) also includes a pressing position (502), which is located in the middle of the main body of the open-type sleeve (501), and one end of the pressing spring (503) is fixed to one side of the inner wall of the pressing position (502).

7. A deep sampling device for cloacal swabs of poultry according to claim 1, 2 or 3, characterized in that: The sample receiving part (6) also includes a cylindrical sleeve (602) and a snap-fit ​​groove (603). The cylindrical sleeve (602) is fixedly connected to the outlet position of the receiving seat (601). The snap-fit ​​groove (603) is opened in the inner ring of the cylindrical sleeve (602). The main body of the open-type snap-fit ​​sleeve (501) is a locking structure with a certain angle. The outer side of the main body of the receiving seat (601) is tapered according to the angle.

8. The cloacal swab deep sampling device for poultry according to claim 7, characterized in that: The sampling bottle (7) also includes a soft band (702), a bottle stopper (703) and a snap-fit ​​sleeve (704). The bottle stopper (703) is connected to the outer wall of the bottle body (701) through the soft band (702). The snap-fit ​​sleeve (704) is fixed to the outer wall of the opening position of the bottle body (701). The bottle body (701) can form an interference fit with the snap-fit ​​groove (603) by means of the snap-fit ​​sleeve (704).

9. A deep sampling device for cloacal swabs of poultry according to claim 1, 2, 3 or 8, characterized in that: It also includes a detachment positioning part (8), which includes an annular groove (801), a positioning hole (802), an elastic piece (804), and a positioning pin (805). The annular groove (801) is opened around the end body of the first end section (402). The positioning hole (802) is opened at the top of the annular groove (801). A spring buckle groove (803) is opened on the other side of the outer wall of the end of the rigid tube (301). One end of the elastic piece (804) is fixed to one side of the inner wall of the spring buckle groove (803). The positioning pin (805) is fixed to the inner side of the elastic piece (804).

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