Sampler for pig brain tissue
By designing a combination of fixation and sampling devices, the problems of biosafety and operational complexity in pig brain tissue sampling were solved, achieving efficient and accurate sampling results, which are suitable for disease diagnosis in modern animal husbandry.
Patent Information
- Application Number
- CN202422543760.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-10-21
AI Technical Summary
Existing methods for sampling pig brain tissue have problems such as high biosafety risks, complex operation, low efficiency, and difficulty in guaranteeing sampling accuracy. They are particularly difficult to meet the requirements of convenience, efficiency and biosafety in large-scale farming.
A sampler comprising a fixation device and a sampling device was designed. The fixation device consists of a symmetrical semi-ring and a telescopic part, while the sampling device consists of a catheter and an inner core. The design, combined with a graduated groove and a handle, provides precise entry path and depth control, and enables minimally invasive and sterile sampling through different combinations of inner cores and catheters.
It enables minimally invasive, sterile, and efficient sampling of pig brain tissue, improving sampling accuracy and safety, reducing operational difficulty and biosafety risks, and is suitable for the disease diagnosis needs of modern animal husbandry.
Smart Images
Figure CN223554876U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pig brain tissue sampling equipment, and in particular to a sampler for pig brain tissue. Background Technology
[0002] With the rapid development of modern animal husbandry, the health status of pigs, as important economic animals, directly affects the economic benefits of the livestock industry and food safety. Collecting pig brain tissue for virus and bacterial isolation and identification is a crucial method for confirming the types of microorganisms causing infection and determining treatment plans, and has received widespread attention in recent years. Traditional methods of pig brain tissue sampling largely rely on manual operations, such as using tools like saws and axes to open the skull and then extract tissue samples. While this method can meet sampling needs to a certain extent, its limitations are becoming increasingly apparent with rising biosecurity and disease control requirements.
[0003] Current technologies for sampling pig brain tissue have significant shortcomings. First, open sampling methods are prone to the spread of viruses and bacteria, increasing the risk of disease transmission and hindering biosecurity control on pig farms. Second, manual sampling methods are not only inefficient but also difficult to guarantee in terms of sampling accuracy, requiring highly skilled operators and increasing the operational difficulty.
[0004] While some improved sampling tools have been proposed in existing technologies, they often suffer from design flaws, such as unstable fixation, inaccurate sampling depth control, and the potential for tissue damage during sampling. These problems not only affect the accuracy and repeatability of sampling but also limit the further development and application of sampling techniques. Especially in large-scale, intensive farming models, higher demands are placed on the convenience, efficiency, and biosafety of sampling tools, requirements that current technologies clearly struggle to meet.
[0005] Furthermore, existing technologies have significant shortcomings in achieving aseptic operation and minimizing injury to pigs. For example, open sampling makes it difficult to prevent the intrusion of external contaminants, increasing the risk of sample contamination. Simultaneously, due to the lack of effective fixation and protection mechanisms, damage to pig brain tissue during sampling is difficult to control, which not only affects sample quality and reliability but also poses a potential threat to the health of the pigs.
[0006] Given the shortcomings of existing technologies in pig brain tissue sampling, this invention aims to solve the following technical challenges: how to design a pig brain tissue sampler that is both minimally invasive and safe, while ensuring sampling accuracy and efficiency. This solution overcomes the problems of complex operation, low efficiency, and high biosafety risks inherent in existing technologies, providing an innovative solution to meet the high standards of modern livestock farming for disease diagnosis and biosafety control. Utility Model Content
[0007] In order to achieve the above-mentioned objectives and address the aforementioned technical problems, this utility model provides a sampler for pig brain tissue.
[0008] The technical solution includes a fixing device and a sampling device. The fixing device includes two symmetrically arranged semi-rings and a telescopic part. The size of the fixing device can be adjusted according to the size of the pig's head.
[0009] The sampling device includes a conduit and an inner core fitted inside the conduit;
[0010] The fixation device has a circular hole at the top, and the sampling device enters the brain through the circular hole to take a sample.
[0011] The adjustable fixing device, with its telescopic mechanism, adapts to different pig head sizes, improving its applicability. The sampling device is inserted into the brain through a circular hole at the top of the fixing device, using a catheter and inner core for sampling. The circular hole at the top of the fixing device provides a precise entry path for the sampling device, enhancing sampling accuracy and safety.
[0012] Both the catheter and the inner core are equipped with handles at their upper ends. The outer wall of the catheter has axially spaced graduated grooves with markings for determining the depth of insertion into the brain. The handles facilitate operator control of the catheter. The external graduations on the catheter allow for accurate depth determination, improving sampling precision.
[0013] The lower end of the catheter is open, and a rubber stopper is provided at the lower end of the inner core. The rubber stopper is attached to the inner wall of the catheter. By pulling the inner core upward, a vacuum is created, allowing brain tissue to be drawn into the catheter.
[0014] The lower end of the catheter is open, and the inner core is a solid structure that fits against the inner wall of the catheter.
[0015] After the catheter enters the predetermined position, the inner core is removed, and a sampling rod or sampling spoon is passed through the inside of the catheter to enter the brain tissue for sampling. The end of the sampling spoon has a spoon-shaped structure.
[0016] The catheter is closed at the lower end and has an opening on its side wall. The inner core is fitted to the inner wall of the catheter. The inner core is hollow and its lower end is designed as a blade structure for cutting and collecting brain tissue samples. The blade-structured inner core can precisely cut and collect samples, improving sampling efficiency and accuracy.
[0017] The telescopic part is arc-shaped, and each of the two semi-annular bodies has a sliding groove at one end facing the telescopic part. Both ends of the telescopic part slide and match the sliding grooves. Each end of the telescopic part has several evenly distributed threaded holes, and the outer wall of the semi-annular body at the end facing the telescopic part also has threaded holes. The telescopic part and the threaded holes of the semi-annular body are fixedly connected by bolts. The two ends of the telescopic part are inserted into the sliding grooves of the semi-annular body. The telescopic part has several threaded holes at both ends, and one threaded hole on the outer wall of the semi-annular body. When adjusted to a suitable size, the threaded holes of the semi-annular body and the telescopic part align vertically, and can be fixed with bolts for positioning. The arc-shaped telescopic part can better conform to the curved surface of the pig's head. Bolt fixing ensures the stability of the fixing device and prevents loosening during sampling.
[0018] The outer wall of the catheter is provided with external threads. The circular hole is located in the middle of the telescopic section. A guide sleeve is provided at the circular hole. The inner wall of the guide sleeve is provided with internal threads. The external threads on the outer wall of the catheter match the internal threads on the inner wall of the guide sleeve. The guide sleeve design provides additional support and guidance for the catheter, improving insertion accuracy.
[0019] This design incorporates two types of catheters. The first type has an open lower end and is compatible with two different inner cores:
[0020] The first type of inner core of the first type of catheter has a rubber stopper at the lower end. Pulling it upwards can create a vacuum, allowing brain tissue to be drawn into the catheter and removed, similar to the principle of a syringe.
[0021] The second type of inner core used in conjunction with the first type of catheter is a solid inner core. After the catheter is inserted into the predetermined position, the inner core is removed, and a sampling rod or a sampling spoon with a structure similar to an ear pick is used to enter the brain tissue through the catheter to take a sample.
[0022] The second type of catheter is closed at the bottom and has an opening on the side wall. The inner core of the catheter is hollow and has a blade structure at the bottom. After the catheter is inserted into the brain tissue, the inner core is pulled upward first. Due to tissue pressure, the brain tissue protrudes into the catheter through the opening on the side wall. Then the inner core is pressed downward. The blade at the bottom cuts the protruding brain tissue and remains in the hollow part of the inner core. The catheter and the inner core are then removed together to complete the sampling.
[0023] The beneficial effects of the technical solution provided by this utility model embodiment are: this solution provides a sampler for pig brain tissue. The sampling device is ingeniously designed, simple and easy to operate, and can realize minimally invasive, sterile and efficient brain tissue sampling, which is easy to promote and apply in clinical practice.
[0024] The sampler is designed to take into account a variety of sampling scenarios and offers multiple options, demonstrating high flexibility and adaptability. It emphasizes safety, accuracy (such as scale markings), and ease of operation (such as handle design). Furthermore, different combinations of catheters and cores can meet various sampling needs. This design helps improve the efficiency and quality of pig brain tissue sampling and is of great value to related research. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of the first type of catheter and the first type of inner core in an embodiment of this utility model.
[0026] Figure 2 This is a schematic diagram of the structure of the first type of catheter and the first type of inner core in the present invention.
[0027] Figure 3 This is a schematic diagram of the overall structure of the first type of catheter and the second type of inner core in an embodiment of this utility model.
[0028] Figure 4 This is a schematic diagram of the structure of the first type of catheter and the second type of inner core in the embodiments of this utility model.
[0029] Figure 5 This is a schematic diagram of the overall structure of the second type of catheter and inner core in this utility model embodiment.
[0030] Figure 6 This is a schematic diagram of the second type of catheter and inner core according to an embodiment of the present invention.
[0031] The reference numerals in the attached drawings are as follows: 101, semi-ring body; 102, telescopic part; 103, circular hole; 201, guide tube; 202, inner core; 203, handle; 204, rubber stopper; 205, opening; 301, bolt; 5, guide sleeve; 6, sampling rod; 7, sampling spoon; 2011, scale; 2012, scale groove. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are only for explaining this utility model and are not intended to limit it.
[0033] It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.
[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0036] Example 1
[0037] See Figures 1 to 6 This utility model provides a sampler for pig brain tissue, including a fixing device and a sampling device. The fixing device includes two symmetrically arranged semi-rings 101 and a telescopic part 102. The size of the fixing device can be adjusted according to the size of the pig's head.
[0038] The sampling device includes a catheter 201 and an inner core 202 fitted inside the catheter 201;
[0039] A circular hole 103 is opened at the top of the fixation device, and the sampling device enters the brain through the circular hole to take a sample.
[0040] The adjustable fixing device, with its telescopic mechanism, adapts to different pig head sizes, improving its applicability. The sampling device is inserted into the brain through a circular hole at the top of the fixing device, using a catheter and inner core for sampling. The circular hole at the top of the fixing device provides a precise entry path for the sampling device, enhancing sampling accuracy and safety.
[0041] Both the catheter 201 and the inner core 202 have handles 203 at their upper ends. The outer wall of the catheter 201 has a graduated groove 2012 along its axial direction, with graduations 2011 within the groove for determining the depth of insertion into the brain. The handles facilitate operator control of the catheter. The graduations 2011 on the outside of the catheter 201 help determine the insertion depth, improving sampling accuracy.
[0042] The lower end of the catheter 201 is open, and the lower end of the inner core 202 is provided with a rubber stopper 204. The rubber stopper 204 is attached to the inner wall of the catheter 201. By pulling the inner core upward, a vacuum is formed, allowing brain tissue to be drawn into the catheter and removed, similar to the principle of a syringe.
[0043] The telescopic part 102 is arc-shaped. Each of the two semi-annular bodies 101 has a sliding groove at one end facing the telescopic part 102. Both ends of the telescopic part 102 slide and match the sliding grooves. Both ends of the telescopic part 102 have several evenly distributed threaded holes. The outer wall of the semi-annular body 101 at the end facing the telescopic part 102 also has threaded holes. The telescopic part 102 and the threaded holes of the semi-annular body 101 are fixedly connected by bolts 301. The two ends of the telescopic part are inserted into the sliding grooves of the semi-annular body. The telescopic part has several threaded holes at both ends, and one threaded hole is opened on the outer wall of the semi-annular body. When adjusted to a suitable size, the threaded holes of the semi-annular body and the telescopic part align vertically, and can be fixed with bolts for positioning. The arc-shaped telescopic part can better conform to the curved surface of the pig's head. Bolt fixing ensures the stability of the fixing device and prevents loosening during sampling.
[0044] The outer wall of the catheter 201 is provided with external threads. A circular hole 103 is located in the middle of the telescopic part 102. A guide sleeve 5 is provided at the circular hole 103. The inner wall of the guide sleeve 5 is provided with internal threads. The catheter 201 is sleeved inside the guide sleeve 5. The external thread of the outer wall of the catheter 201 matches the internal thread of the inner wall of the guide sleeve 5. The design of the guide sleeve provides additional support and guidance for the catheter, improving insertion accuracy. The matching of the external thread of the outer wall of the catheter 201 with the internal thread of the inner wall of the guide sleeve 5 also ensures that the catheter does not move arbitrarily after being inserted to a suitable depth.
[0045] Example 2
[0046] Based on Example 1, the difference from Example 1 is that the lower end of the catheter 201 is open, the inner core 202 is a solid structure, and the inner core 202 is attached to the inner wall of the catheter 201;
[0047] After the catheter 201 enters the predetermined position, the inner core 202 is removed, and the sampling rod 6 or the sampling spoon 7 passes through the inside of the catheter 201 to enter the brain tissue for sampling. The end of the sampling spoon 7 is a spoon-shaped structure.
[0048] Example 3
[0049] Based on Example 1, the difference is that the lower end of the catheter 201 is closed, and an opening 205 is provided on the side wall of the catheter 201. The inner core 202 is attached to the inner wall of the catheter 201. The inner core 202 is hollow and its lower end is set as a blade structure for cutting and collecting brain tissue samples. The blade structure inner core can accurately cut and collect samples, improving sampling efficiency and accuracy.
[0050] After the catheter is inserted into the brain tissue, the inner core 202 is pulled upwards. Due to tissue pressure, the brain tissue protrudes into the catheter through the opening 205 on the side wall of the catheter 201. Then, the inner core 202 is pressed downwards. The blade structure at the lower end cuts the protruding brain tissue and leaves it in the hollow part of the inner core 202. The catheter 201 and the inner core 202 are then removed together to complete the sampling.
[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A sampler for pig brain tissue, characterized in that, It includes a fixing device and a sampling device. The fixing device includes two symmetrically arranged semi-rings (101) and a telescopic part (102). The size of the fixing device can be adjusted according to the size of the pig's head. The sampling device includes a conduit (201) and an inner core (202) sleeved inside the conduit (201); The fixing device has a circular hole (103) at the top, and the sampling device enters the brain through the circular hole to take a sample.
2. The sampler for pig brain tissue according to claim 1, characterized in that, The upper ends of the catheter (201) and the inner core (202) are both provided with handles (203). The outer wall of the catheter (201) is provided with a scale groove (2012) along the axial direction. The scale groove (2012) is provided with a scale (2011) for determining the depth of insertion into the brain.
3. The sampler for pig brain tissue according to claim 2, characterized in that, The lower end of the conduit (201) is open, and a rubber stopper (204) is provided at the lower end of the inner core (202), and the rubber stopper (204) is in contact with the inner wall of the conduit (201).
4. The sampler for pig brain tissue according to claim 2, characterized in that, The lower end of the catheter (201) is open, the inner core (202) is a solid structure, and the inner core (202) is attached to the inner wall of the catheter (201); After the catheter (201) enters the predetermined position, the inner core (202) is removed and sampled through the inside of the catheter (201) by a sampling rod (6) or a sampling spoon (7). The end of the sampling spoon (7) is a spoon-shaped structure.
5. The sampler for pig brain tissue according to claim 2, characterized in that, The lower end of the catheter (201) is closed, and an opening (205) is provided on the side wall of (201). The inner core (202) is attached to the inner wall of the catheter (201). The inner core (202) is hollow and the lower end is set as a blade structure for cutting and collecting brain tissue samples.
6. The sampler for pig brain tissue according to claim 1, characterized in that, The telescopic part (102) is arc-shaped. Each of the two semi-rings (101) has a sliding groove at one end facing the telescopic part (102). Both ends of the telescopic part (102) slide and match the sliding groove. Both ends of the telescopic part (102) have a number of evenly distributed threaded holes. The outer wall of the end of the semi-ring (101) facing the telescopic part (102) has a threaded hole. The telescopic part (102) and the threaded holes of the semi-ring (101) are fixedly connected by bolts (301).
7. The sampler for pig brain tissue according to claim 2, characterized in that, The outer wall of the conduit (201) is provided with external threads, the circular hole (103) is located in the middle of the telescopic part (102), a guide sleeve (5) is provided at the circular hole (103), the inner wall of the guide sleeve (5) is provided with internal threads, the conduit (201) is sleeved in the guide sleeve (5), and the external thread of the outer wall of the conduit (201) matches the internal thread of the inner wall of the guide sleeve (5).