Minimally invasive sampling device for ruminant living body muscle adipose tissue

Abstract

The utility model provides a ruminant living body muscle adipose tissue minimally invasive sampling device, which relates to the technical field of animal tissue sampling, and comprises an outer sleeve and an inner cutting rod, one end of the outer sleeve is provided with a needle, the other end of the outer sleeve is provided with a handle, and the outer sleeve is provided with a sampling groove close to the needle; the inner cutting rod is movably arranged in the outer sleeve, and a sampling knife is correspondingly arranged at the sampling groove. The animal sampling device has the advantages of being high in sampling efficiency, capable of reducing animal injuries, convenient, easy and fast to operate and low in cost.

Description

Technical Field

[0001] This utility model relates to the field of animal tissue sampling technology, and in particular to a minimally invasive sampling device for live muscle and fat tissue of ruminants. Background Technology

[0002] In the breeding, meat quality assessment, and scientific research of ruminants (such as cattle and sheep), the sampling and analysis of live muscle and adipose tissue is crucial. Traditional sampling methods usually rely on collecting samples after slaughter, which is not only costly and time-consuming, but also cannot achieve dynamic monitoring of the same animal.

[0003] Currently, live sampling techniques mainly rely on puncture biopsy needles, such as... The needle or Tru-Cut needle has the following problems: (1) the tissue is easily squeezed and deformed during the sampling process, which affects the integrity of the sample; (2) some devices rely on manual cutting, which has poor operation stability and may lead to insufficient sampling or sample breakage; (3) the vacuum-assisted function of the existing devices is limited, making it difficult to efficiently adsorb loose fat tissue; (4) the locking mechanism is mostly a simple buckle or threaded fixation, which is easy to loosen and lead to sampling failure; (5) most puncture needles at present require multiple needle bodies or tube bodies to be inserted multiple times for cutting and sampling. During the process, contact with the outside air is easy to cause infection and wastes time. The operation is difficult and the efficiency is extremely low.

[0004] Therefore, there is an urgent need for an improved minimally invasive sampling device that can improve sampling efficiency and sample quality while maintaining a compact structure. How to solve the above-mentioned technical problems is the challenge faced by this utility model. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a minimally invasive sampling device for live muscle and fat tissue of ruminants that is rationally designed, simple in structure, safe and reliable, and can achieve high sampling efficiency, reduce animal injury, be convenient, easy and quick to operate, and be low in cost.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: This utility model provides a minimally invasive sampling device for live muscle and fat tissue of ruminants, including an outer tube and an inner cutting rod. A needle is provided at one end of the outer tube and a handle is provided at the other end. A sampling groove is provided near the needle in the outer tube.

[0007] The inner cutting rod is movably disposed inside the outer sleeve, and a sampling knife is correspondingly disposed at the sampling slot.

[0008] The outer tube is a hollow tube with one end open and the other end closed for the needle tip, and the handle is fixedly provided at the open end of the outer tube;

[0009] The sampling groove is a rectangular groove that penetrates the wall of the outer sleeve.

[0010] The outer sleeve is movably connected to a movable tube, the inner ring of which is slidably connected to the inner cutting rod body, and the outer ring is provided with external threads;

[0011] The inner wall of the outer sleeve is provided with an internal thread, which is threadedly engaged with the external thread. The internal thread is located near the open end of the outer sleeve.

[0012] A rotating handle is provided at one end of the movable tube, and the rotating handle is located outside the outer tube and outside the open end of the outer tube.

[0013] The outer diameter of the inner cutting rod matches the inner diameter of the movable tube, and one end of the inner cutting rod passes through the open end of the outer tube and is movably connected to the locking mechanism located on the handle;

[0014] The other end of the inner cutting rod is provided with the sampling knife, which is provided with an arc-shaped blade. The outer arc surface of the arc-shaped blade is matched with the inner arc surface of the outer sleeve. The arc-shaped blade is fixedly connected to the inner cutting rod through a connecting rod.

[0015] Both ends of the arc-shaped blade in the direction of rotation are blade-shaped, and the width and length of the sampling blade are both greater than the width and length of the sampling groove.

[0016] The inner rod is provided with a plurality of limiting discs, the outer diameter of which matches the inner diameter of the outer sleeve.

[0017] The inner wall of the outer sleeve is fixedly provided with several sets of limiting rings, each set of the limiting rings has two rings, and each limiting disc is located between a set of the limiting rings, and the distance between the two limiting rings is greater than the thickness of the limiting disc.

[0018] The limiting disc has several air holes that penetrate it.

[0019] The handle is provided with the locking mechanism, which includes a locking tube fixedly mounted on the handle, and the end of the inner cutting rod is located inside the locking tube;

[0020] A locking groove is provided at one end of the inner cutting rod near the locking mechanism. The locking groove is a cylindrical groove and is coaxial with the inner cutting rod body.

[0021] The locking tube is a hollow tube body, coaxially arranged with the inner cutting rod. The inner diameter of the locking tube near the inner cutting rod is slidably connected to the outer diameter of the inner cutting rod. The locking tube away from the inner cutting rod is slidably connected to a locking plug. One end of the locking plug is located outside the locking tube and is provided with a pull button. The outer diameter of the other end is matched with the inner diameter of the locking groove of the inner cutting rod. A rubber anti-slip strip is provided at the connection between the locking plug and the locking groove.

[0022] The locking plug is provided with a fixing ring with a diameter greater than the inner diameter of the locking groove but not greater than the inner diameter of the locking tube;

[0023] The locking tube has a tapering structure at the end away from the inner cutting rod. The tapering structure is annular, with an inner diameter smaller than the outer diameter of the fixing ring and larger than the outer diameter of the locking plug.

[0024] The inner cutting rod has a rotating column on a section between the locking mechanism and the rotating handle, and the rotating column has anti-slip texture.

[0025] The edges of the sampling grooves are all beveled.

[0026] The beneficial effects of this utility model are as follows: 1. The active tube driven by the thread and the outer tube are used together. The vacuum adsorption effect is achieved by rotating the handle, so that the tissue can enter the sampling groove for easy cutting and sampling, and at the same time, the sampling success rate of loose fat tissue is significantly improved.

[0027] 2. The curved sampling blade of the inner cutting rod has a double-edged design, which reduces tissue tearing during rotational cutting and ensures sample integrity;

[0028] 3. The design of the limiting disc and the air hole in this device maintains the vacuum state inside the outer tube and avoids airflow interference when the inner cutting rod moves.

[0029] 4. The locking plug and locking groove of the locking mechanism of this device can lock the inner cutting rod, and the rubber anti-slip strip can prevent the inner cutting rod from being accidentally displaced during operation, thus improving stability;

[0030] 5. The beveled edge design of the sampling slot of this device reduces puncture resistance and minimizes damage to surrounding tissues. In addition, the device does not require complex electronic components and achieves efficient sampling through mechanical structure improvements alone. It is low in cost and suitable for the needs of live dynamic monitoring in ranches or laboratories.

[0031] 6. This device can achieve rapid sampling with only one insertion, eliminating the need for multiple puncture needles, saving time and improving efficiency, and also reducing the risk of infection when multiple instruments are inserted. Attached Figure Description

[0032] Figure 1This is the front view of the present invention.

[0033] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0034] Figure 3 This is a cross-sectional view of the initial state of this utility model.

[0035] Figure 4 for Figure 3 A magnified view of a portion of area A.

[0036] Figure 5 for Figure 3 A magnified view of a portion of area B.

[0037] Figure 6 for Figure 3 A magnified view of a portion of area C.

[0038] Figure 7 This is a cross-sectional view of the sampling state of this utility model.

[0039] Figure 8 for Figure 7 A magnified view of a portion of area A.

[0040] Figure 9 for Figure 7 A magnified view of a portion of area B.

[0041] Figure 10 This is a three-dimensional structural diagram of the movable tube of this utility model.

[0042] Figure 11 This is a three-dimensional structural diagram of the internal tangent rod of this utility model.

[0043] Figure 12 This is a three-dimensional structural diagram of the locking plug of this utility model.

[0044] The reference numerals in the attached drawings are as follows: 1. Outer tube; 101. Needle; 102. Handle; 103. Sampling groove; 104. Internal thread; 105. Limiting ring; 2. Inner cutting rod; 201. Sampling knife; 202. Limiting disc; 203. Air hole; 204. Locking groove; 205. Rotating column; 3. Movable tube; 301. External thread; 302. Rotating handle; 4. Locking tube; 401. Locking plug; 402. Pull button; 403. Anti-slip strip; 404. Fixing ring. Detailed Implementation

[0045] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0046] See Figures 1 to 12As shown, this embodiment is a minimally invasive sampling device for live muscle and fat tissue of ruminants, including an outer tube 1 and an inner cutting rod 2. One end of the outer tube 1 is provided with a needle 101, and the other end is provided with a handle 102. The outer tube 1 is a hollow tube with one end open and the other end closed to the needle. The handle 102 is fixedly provided at the open end of the outer tube 1. A sampling groove 103 is provided near the needle 101 on the outer tube 1. The groove edges of the sampling groove 103 are all obliquely cut. The sampling groove 103 is a rectangular groove that penetrates the tube wall of the outer tube 1.

[0047] The outer tube 1 is movably connected to the movable tube 3. The inner ring of the movable tube 3 is slidably connected to the inner cutting rod 2. The outer ring is provided with an external thread 301. The inner wall of the outer tube 1 is provided with an internal thread 104. The internal thread 104 is threadedly engaged with the external thread 301. The internal thread 104 is located near the open end of the outer tube 1. One end of the movable tube 3 is provided with a rotating handle 302. The rotating handle 302 is located outside the outer tube 1 and outside the open end of the outer tube 1.

[0048] The inner cutting rod 2 is movably disposed inside the outer sleeve 1, and a sampling knife 201 is correspondingly disposed at the sampling slot 103. The outer diameter of the inner cutting rod 2 matches the inner diameter of the movable tube 3. One end of the inner cutting rod 2 passes through the open end of the outer sleeve 1 and is movably connected to the locking mechanism located on the handle 102. The other end of the inner cutting rod 2 is provided with a sampling knife 201, which is provided with an arc-shaped blade. The outer arc surface of the arc-shaped blade matches the inner arc surface of the outer sleeve 1. The arc-shaped blade is fixedly connected to the inner cutting rod 2 through a connecting rod. Both ends of the arc-shaped blade in the direction of rotation are blade-shaped. The width and length of 201 are both greater than the width and length of the sampling groove 103. Several limiting discs 202 are provided on the rod body of the inner cutting rod 2. The outer diameter of the limiting disc 202 matches the inner diameter of the outer sleeve 1. Several sets of limiting rings 105 are fixedly provided on the inner wall of the outer sleeve 1. Each set of limiting rings 105 has two rings, and each limiting disc 202 is located between a set of limiting rings 105. The distance between the two limiting rings 105 is greater than the thickness of the limiting disc 202. Several air holes 203 penetrating the limiting disc 202 are opened on the limiting disc 202.

[0049] A locking mechanism is provided on the handle 102. The locking mechanism includes a locking tube 4 fixedly mounted on the handle 102. The end of the inner cutting rod 2 is located inside the locking tube 4. A locking groove 204 is formed at the end of the inner cutting rod 2 near the locking mechanism. The locking groove 204 is a cylindrical groove and coaxial with the rod body of the inner cutting rod 2. The locking tube 4 is a hollow tube body and is coaxially mounted with the inner cutting rod 2. The inner diameter of the end of the locking tube 4 near the inner cutting rod 2 is slidably connected to the outer diameter of the inner cutting rod 2. A locking plug 401 is slidably connected at the end of the locking tube 4 away from the inner cutting rod 2. One end of the locking plug 401 is located outside the locking tube 4 and is provided with a pull button 402. One end of the outer diameter matches the inner diameter of the locking groove 204 of the inner cutting rod 2. A rubber anti-slip strip 403 is provided at the connection between the locking plug 401 and the locking groove 204. A fixing ring 404 with a diameter larger than the inner diameter of the locking groove 204 and not larger than the inner diameter of the locking tube 4 is provided on the locking plug 401. The end of the locking tube 4 away from the inner cutting rod 2 is provided with a closing structure. The closing structure is ring-shaped, with an inner diameter smaller than the outer diameter of the fixing ring 404 and larger than the outer diameter of the locking plug 401. A rotating column 205 is provided on a section of the inner cutting rod 2 located between the locking mechanism and the rotating handle 302. The rotating column 205 is provided with anti-slip texture.

[0050] In actual use, the following steps are taken: First, install the outer tube 1, inner cutting rod 2, and movable tube 3 of the device, ensuring that the locking plug 401 of the locking mechanism is located in the locking groove 204 of the inner cutting rod 2. The sampling blade 201 of the inner cutting rod 2 covers the sampling groove 103, making the outer tube 1 and movable tube 3 in a closed state. At the same time, ensure that the movable tube 3 is rotated to the front end, i.e., the needle tip 101 end. This is the initial state of the device. During sampling, insert the needle tip 101 end of the outer tube 1 into the animal body and move it to the site to be sampled in conjunction with X-ray, so that the sampling groove 103 corresponds to the sampling site. Then, unlock the inner cutting rod 2 and rotate the inner cutting rod 2 to rotate the sampling blade 201 to open the sampling groove 103. Unlocking is specifically done by manually pulling out the locking plug 401. At this time, the locking plug 401 and the locking groove 204 are locked. 04. Separate, but the inner cutting rod 2 is still slidably connected and rotatably connected to the locking tube 4 and the outer tube 1. At this time, rotate the rotating handle 302 to move the movable tube 3 toward the handle 102. Due to the vacuum state in the outer tube 1, the tissue to be sampled can be sucked into the outer tube 1 from the sampling slot 103. At this time, the tissue can be cut and separated by rotating the inner cutting rod 2 and moving it back and forth by rotating the rotating column 205. After rotating a certain angle, the tissue can be cut and placed in the outer tube 1. At this time, the rotation angle of the inner cutting rod 2 causes the sampling knife 201 to re-close the sampling slot 103. After the locking plug 401 is inserted into the locking slot 204 to fix the inner cutting rod 2 by the locking mechanism, the device can be pulled out of the animal body. After unlocking the inner cutting rod 2 again, it can be rotated to take out the tissue sample.

[0051] The technical features of this utility model not described can be implemented by or by using existing technology, and will not be repeated here. Of course, the above description is not a limitation of this utility model, and this utility model is not limited to the examples above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model should also be within the protection scope of this utility model.

Claims

1. A minimally invasive sampling device for live muscle and adipose tissue from ruminants, characterized in that, It includes an outer tube (1) and an inner cutting rod (2). One end of the outer tube (1) is provided with a needle (101) and the other end is provided with a handle (102). A sampling groove (103) is provided near the needle (101) of the outer tube (1). The inner cutting rod (2) is movably disposed inside the outer sleeve (1), and a sampling knife (201) is correspondingly disposed at the sampling slot (103).

2. The minimally invasive sampling device for ruminant live muscle and adipose tissue according to claim 1, characterized in that, The outer tube (1) is a hollow tube with one end open and the other end closed for the needle. The handle (102) is fixedly provided at the open end of the outer tube (1). The sampling groove (103) is a rectangular groove that penetrates the wall of the outer sleeve (1).

3. The minimally invasive sampling device for ruminant live muscle and fat tissue according to claim 1, characterized in that, The outer sleeve (1) is movably connected to the movable tube (3), the inner ring of the movable tube (3) is slidably connected to the inner cutting rod (2) body, and the outer ring is provided with an external thread (301). The inner wall of the outer tube (1) is provided with an internal thread (104), which is threadedly engaged with the external thread (301). The internal thread (104) is located near the open end of the outer tube (1).

4. The minimally invasive sampling device for ruminant live muscle and fat tissue according to claim 3, characterized in that, One end of the active tube (3) is provided with a rotating handle (302), which is located outside the outer tube (1) and outside the open end of the outer tube (1).

5. The minimally invasive sampling device for ruminant live muscle and fat tissue according to claim 4, characterized in that, The outer diameter of the inner cutting rod (2) matches the inner diameter of the movable tube (3), and one end of the inner cutting rod (2) passes through the open end of the outer tube (1) and is movably connected to the locking mechanism located on the handle (102); The other end of the inner cutting rod (2) is provided with the sampling knife (201), the sampling knife (201) is provided with an arc-shaped blade, the outer arc surface of the arc-shaped blade is matched with the inner arc surface of the outer sleeve (1), and the arc-shaped blade is fixedly connected to the inner cutting rod (2) through a connecting rod; Both ends of the arc-shaped blade in the direction of rotation are blade-shaped, and the width and length of the sampling blade (201) are both greater than the width and length of the sampling groove (103).

6. The minimally invasive sampling device for ruminant live muscle and fat tissue according to claim 5, characterized in that, The inner tangent rod (2) is provided with a plurality of limiting discs (202), the outer diameter of the limiting discs (202) being matched with the inner diameter of the outer sleeve (1); The inner wall of the outer sleeve (1) is fixedly provided with several sets of limiting rings (105). Each set of limiting rings (105) has two rings, and each limiting disc (202) is located between a set of limiting rings (105). The distance between the two limiting rings (105) is greater than the thickness of the limiting disc (202). The limiting disc (202) has several air holes (203) that penetrate the limiting disc (202).

7. The minimally invasive sampling device for ruminant live muscle and fat tissue according to claim 5, characterized in that, The handle (102) is provided with the locking mechanism, which includes a locking tube (4) fixedly disposed on the handle (102), and the end of the inner cutting rod (2) is located inside the locking tube (4); The inner cutting rod (2) has a locking groove (204) at one end near the locking mechanism. The locking groove (204) is a cylindrical groove and is coaxial with the rod body of the inner cutting rod (2). The locking tube (4) is a hollow tube body, coaxially arranged with the inner cutting rod (2). The inner diameter of the locking tube (4) near the inner cutting rod (2) is slidably connected to the outer diameter of the inner cutting rod (2). The locking tube (4) away from the inner cutting rod (2) is slidably connected to a locking plug (401). One end of the locking plug (401) is located outside the locking tube (4) and is provided with a pull button (402). The outer diameter of the other end is matched with the inner diameter of the locking groove (204) of the inner cutting rod (2). A rubber anti-slip strip (403) is provided at the connection between the locking plug (401) and the locking groove (204).

8. The minimally invasive sampling device for ruminant live muscle and adipose tissue according to claim 7, characterized in that, The locking plug (401) is provided with a fixing ring (404) with a diameter greater than the inner diameter of the locking groove (204) and not greater than the inner diameter of the locking tube (4). The locking tube (4) has a closing structure at one end away from the inner cutting rod (2). The closing structure is annular, with an inner diameter smaller than the outer diameter of the fixing ring (404) and larger than the outer diameter of the locking plug (401).

9. The minimally invasive sampling device for ruminant live muscle and adipose tissue according to claim 7, characterized in that, The inner cutting rod (2) is provided with a rotating column (205) on a section of the rod between the locking mechanism and the rotating handle (302), and the rotating column (205) is provided with anti-slip texture.

10. The minimally invasive sampling device for ruminant live muscle and fat tissue according to claim 1, characterized in that, The edges of the sampling groove (103) are all obliquely cut.

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