Sampling device for clinical biochemical examination

Abstract

The utility model relates to a sampling device for clinical biochemical examination, and belongs to the technical field of sampling, the sampling device comprises an outer cylinder, the inner side of the outer cylinder is provided with a movable channel, the inner side of the movable channel is slidably connected with a suction cylinder, the bottom of the suction cylinder is provided with a connecting cylinder, and the bottom end of the connecting cylinder is fixedly connected with a suction pipe. The problems that after a rotating plate and a connecting rod are clamped, the size is larger than the diameter of a fixed pipe, the rotating plate and the connecting rod are possibly in excessive contact with tissue, the structure of one end of the device is enlarged, the outer side of the device becomes irregular, and flexible movement and sampling in a living body are not facilitated are solved. Through the use of the piston, the suction cylinder and the suction pipe, a liquid sample can be sucked, through the use of the swing rod, the curved bar, the clamping plate and the sliding block, a solid sample can be clamped and collected, and then the solid sample and the liquid sample are collected.

Description

Technical Field

[0001] The invention belongs to the technical field of sampling, and in particular relates to a sampling device used for clinical biochemical examination. Background Art

[0002] The sampling equipment checks and extracts various biochemical samples, and stores the biochemical samples inside the sampling tube for inspection. The sampling tube is a common tool in various inspection work, and is widely used in medicine, chemical industry and various laboratories to provide a place for storage or transfer of inspection samples.

[0003] The existing relevant patent, patent number CN202122095696.9, "A multifunctional sampling tube for clinical biochemical examination", has "the utility model can generate negative pressure in the sampling tube when the piston moves in the sampling tube, and the liquid sample is sucked into the sampling tube to complete the sampling of the liquid sample; when the two rotating plates rotate at the same time until they contact each other, the solid sample can be moved into the through hole of the sampling block to complete the sampling of the solid sample; when the sampling tube rotates, the lower end of the sampling tube can be retracted into the fixed tube to prevent the sampling tube from affecting the solid sampling work; the first sleeve, the second sleeve and the connecting rod cooperate to ensure that the two rotating plates rotate at the same time; the annular T-slot and the protrusion cooperate to prevent the second sleeve from detaching from the first sleeve; the cross-sections of the sampling block and the rotating plate are both rectangular structures to ensure that the two sampling blocks are connected When the sampling block is touched, the lower end of the sampling block can be completely blocked to prevent the solid sample from falling. The utility model has a simple and reliable structure, can sample solid samples and liquid samples respectively, has complete functions, strong practicality and is suitable for promotion. However, there are still some shortcomings, such as sampling often needs to be operated in the body of a living organism, and the threaded connection between the sampling tube and the fixed tube will cause the outer side of the fixed tube to become rough due to the setting of the thread, which may cause greater friction with the biological tissue, resulting in flesh damage, collision and abrasion. The size of the rotating plate and the connecting rod after clamping is larger than the diameter of the fixed tube, which may cause it to have excessive contact with the tissue and cause the structure of one end of the device to become larger, making its outer side irregular, which is not conducive to flexible activity and sampling in the body of a living organism. Therefore, a sampling device for clinical biochemical examination is proposed. Summary of the invention

[0004] The present invention provides a sampling device for clinical biochemical examination, which aims to solve the problem that sampling often needs to be performed in the body of a living organism, and the threaded connection between the sampling tube and the fixed tube will cause the outer side of the fixed tube to become rough due to the setting of the thread, which may cause greater friction with the tissue of the living organism, resulting in flesh damage, collision and abrasion. The size of the rotating plate and the connecting rod after clamping is larger than the diameter of the fixed tube, which may cause excessive contact with the tissue, causing the structure of one end of the device to become larger, and the outer side of the device to become irregular, which is not conducive to flexible movement and sampling in the body of the living organism.

[0005] The present invention provides a sampling device for clinical biochemical examination, comprising an outer cylinder, an active channel is provided on the inner side of the outer cylinder, a suction cylinder is slidably connected to the inner side of the active channel, a connecting cylinder is provided at the bottom of the suction cylinder, a suction tube is fixedly connected to the bottom end of the connecting cylinder, a slider is provided at the lower end of the suction tube, a swing rod is rotatably connected to both sides of the bottom end of the slider, a bent rod is provided at the bottom end of the swing rod, a clamping plate is provided at the bottom end of the bent rod, and the material of the bent rod is spring steel;

[0006] The two clamping plates are movably connected, a plurality of teeth are provided on one side of the clamping plate, two limit rods are provided at the bottom of the inner side of the movable channel, a limit groove 1 is provided at the bottom end of the inner side of the movable channel, the limit groove 1 is slidably connected to the rocker arm, the rocker arm and the limit rod are movably connected, and one side of the inner wall of the limit groove 1 is an inclined surface.

[0007] Furthermore, a liquid storage cavity is provided inside the suction cylinder, a piston is slidably connected to the inner side of the liquid storage cavity, a piston rod is provided at the top end of the piston, a control disk is provided at the top end of the piston rod, and the connecting cylinder is provided at the bottom of the liquid storage cavity.

[0008] By adopting the above solution, when the air vent moves in the liquid storage cavity, negative pressure can be formed at the bottom of the liquid storage cavity.

[0009] Furthermore, an air hole is provided on the inner top wall of the liquid storage cavity, and the air hole connects the upper part of the liquid storage cavity with the inner side of the movable channel.

[0010] By adopting the above solution, the air vent allows the air pressure in the upper part of the liquid storage chamber to be balanced with the outside, so that the piston can move smoothly.

[0011] Furthermore, a limiting ring 1 and a limiting ring 2 are provided on the inner wall of the movable channel, wherein the limiting ring 1 is located above the suction cylinder, and the limiting ring 2 is located below the suction cylinder.

[0012] By adopting the above solution, the limiting ring 1 and the limiting ring 2 limit the upper and lower limits of the suction cylinder.

[0013] Furthermore, a through groove, a locking groove and a sliding groove are provided on the inner side of the slider, the upper end of the sliding groove is open, the through groove and the suction tube are plugged in, a locking rod is provided on one side of the suction tube, and the locking rod and the locking groove and the sliding groove are movably plugged in.

[0014] By adopting the above solution, after the locking rod is inserted into the locking groove, the suction tube, the slider and the suction tube are linked.

[0015] Furthermore, a matching seat is provided at the top of the sliding block, the matching seat is a permanent magnet, the second limiting ring and the matching seat can be movably plugged, and the material of the second limiting ring is a paramagnetic material.

[0016] By adopting the above solution, the matching seat locks the slider on the limiting ring 2.

[0017] Furthermore, the connecting tube is in a funnel shape.

[0018] By adopting the above solution, the connecting cylinder can indirectly connect the suction tube to the suction cylinder.

[0019] Furthermore, a second limiting groove is formed through the first limiting ring, and the control rod passes through the second limiting groove.

[0020] By adopting the above solution, the second limiting groove can limit the position change of the control rod.

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

[0022] 1. In the present invention, the use of a piston, a suction cylinder and a suction tube enables the liquid sample to be sucked, and the use of a swing rod, a curved rod, a clamping plate and a slider enables the solid sample to be clamped and collected, thereby collecting both solid and liquid samples;

[0023] 2. In the present invention, the outer side of the outer tube is regular and smooth without threads. After the clamping plate collects the sample, the outer peripheral surface size of the outer tube will not change. When not collecting, the clamping plate can be retracted into the activity channel to avoid collision and abrasion with the tissue in the body, and can move more flexibly.

[0024] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 It is a front structural schematic diagram of the present invention;

[0027] Figure 2 It is a bottom view structural schematic diagram of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the limiting ring 1 of the present invention;

[0029] Figure 4 It is a schematic diagram of the internal structure of the slider of the present invention;

[0030] Figure 5 For the present invention Figure 1 Schematic diagram of the local enlarged structure of part A.

[0031] Figure numerals: outer cylinder -1, movable channel -2, limit ring one -3, air vent -4, piston -5, suction cylinder -6, connecting cylinder -7, rocker arm -8, curved arm -9, clamping plate -10, tooth -11, control plate -12, control rod -13, piston rod -14, limit ring two -15, slider -16, limit rod -17, limit groove one -18, suction tube -19, limit groove two -20, sliding groove -21, locking groove -22, locking rod -23, through groove -24, matching seat -25, liquid storage chamber -26. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of specific embodiments of the present invention. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figure 1-5 As shown, the present invention proposes a sampling device for clinical biochemical examination, comprising an outer cylinder 1, an active channel 2 is provided on the inner side of the outer cylinder 1, a suction cylinder 6 is slidably connected to the inner side of the active channel 2, a connecting cylinder 7 is provided at the bottom of the suction cylinder 6, a suction tube 19 is fixedly connected to the bottom end of the connecting cylinder 7, a slider 16 is installed at the lower end of the suction tube 19, a swing rod 8 is rotatably connected to both sides of the bottom end of the slider 16, a bent rod 9 is provided at the bottom end of the swing rod 8, a clamping plate 10 is provided at the bottom end of the bent rod 9, and the material of the bent rod 9 is spring steel;

[0034] The two clamping plates 10 are movably connected, and a plurality of teeth 11 are provided on one side of the clamping plate 10. Two limiting rods 17 are provided at the bottom of the inner side of the movable channel 2. A limiting groove 18 is provided at the bottom end of the inner side of the movable channel 2. The limiting groove 18 is slidably connected to the rocker rod 8. The rocker rod 8 and the limiting rod 17 are movably connected, and one side of the inner wall of the limiting groove 18 is an inclined surface.

[0035] A liquid storage chamber 26 is provided inside the suction tube 6, and a piston 5 is slidably connected to the inner side of the liquid storage chamber 26. A piston rod 14 is provided at the top of the piston 5, and a control disk 12 is provided at the top of the piston rod 14. The connecting tube 7 is provided at the bottom of the liquid storage chamber 26.

[0036] When the air vent 4 moves in the liquid storage chamber 26 , negative pressure can be formed at the bottom of the liquid storage chamber 26 .

[0037] The inner top wall of the liquid storage chamber 26 is provided with a vent hole 4 , and the vent hole 4 connects the upper part of the liquid storage chamber 26 with the inner side of the movable channel 2 .

[0038] The air vent 4 balances the air pressure in the upper portion of the liquid storage chamber 26 with the outside, thereby enabling the piston 5 to move smoothly.

[0039] The inner wall of the movable channel 2 is provided with a limit ring 1 3 and a limit ring 2 15 . The limit ring 1 3 is located above the suction cylinder 6 , and the limit ring 2 15 is located below the suction cylinder 6 .

[0040] The limiting ring 1 3 and the limiting ring 2 15 limit the upper and lower limits of the suction cylinder 6.

[0041] A through groove 24, a locking groove 22 and a sliding groove 21 are provided on the inner side of the slider 16. The upper end of the sliding groove 21 is open. The through groove 24 and the suction tube 19 are plugged in. A locking rod 23 is provided on one side of the suction tube 19. The locking rod 23 and the locking groove 22 and the sliding groove 21 are movably plugged in.

[0042] After the locking rod 23 is inserted into the locking groove 22 , the suction tube 19 , the slider 16 , and the suction tube 19 are moved in conjunction with each other.

[0043] A matching seat 25 is arranged at the top of the slider 16 , and the matching seat 25 is a permanent magnet. The second limiting ring 15 and the matching seat 25 can be movably plugged in, and the material of the second limiting ring 15 is a paramagnetic material.

[0044] The matching seat 25 locks the slider 16 on the limiting ring 2 15 .

[0045] The connecting tube 7 is in the shape of a funnel.

[0046] The connecting cylinder 7 can indirectly connect the suction tube 19 to the suction cylinder 6 .

[0047] The limiting ring 1 3 is provided with a limiting groove 20 , and the control rod 13 passes through the limiting groove 20 .

[0048] The specific implementation method is as follows: the control rod 13 is used to control the rotation of the suction tube 6, the connecting tube 7 and the suction tube 19, so that the locking rod 23 is inserted into the locking groove 22, so that the suction tube 19, the slider 16 and the suction tube 19 are linked, and the suction tube 6 is controlled by the control rod 13 to move up and down inside the movable channel 2, so that the slider 16 can be controlled to move up and down, and the slider 16 moves up and down with the swing rod 8, the curved rod 9 and the clamping plate 10, and the swing rod 8 is limited by the limit rod 17 and the limit groove 18, so that the clamping plate 10 swings, so that the two clamping plates 10 are close to or away from each other, and after the two clamping plates 10 are close to each other, the two clamping plates 10 can clamp the object between the two clamping plates 10, and the object is a biological sample, so as to realize the clamping of the solid sample;

[0049] After the swing rod 8 enters the limiting groove 18, the limiting grooves 18 are moved closer to each other under the pressure of the inclined surface of the limiting groove 18. When the swing rod 8 moves downward, the limiting rod 17 separates the limiting grooves 18 from each other.

[0050] The linkage between the suction tube 19 and the slider 16 is released, and the suction tube 19 can be controlled to move downward to extend the suction tube 19. Then, the piston 5 is controlled to move upward through the piston rod 14 and the control disk 12, and the piston 5 uses the suction tube 19 to absorb the liquid sample.

[0051] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A sampling device for clinical biochemical examination, comprising an outer cylinder (1), characterized in that: A movable channel (2) is provided on the inner side of the outer tube (1), and a suction tube (6) is slidably connected to the inner side of the movable channel (2). A connecting tube (7) is provided at the bottom of the suction tube (6). The bottom end of the connecting tube (7) is fixedly connected to a suction tube (19). A slider (16) is provided at the lower end of the suction tube (19). A swing rod (8) is rotatably connected to both sides of the bottom end of the slider (16). A bent rod (9) is provided at the bottom end of the swing rod (8), and a clamping plate (10) is provided at the bottom end of the bent rod (9). A plurality of teeth (11) are provided on one side of the clamping plate (10), two limiting rods (17) are provided at the bottom of the inner side of the movable channel (2), a limiting groove (18) is provided at the bottom end of the inner side of the movable channel (2), the limiting groove (18) and the swing rod (8) are slidably connected, the swing rod (8) and the limiting rod (17) are movably connected, and one side of the inner wall of the limiting groove (18) is an inclined surface.

2. The sampling device for clinical biochemical examination according to claim 1, characterized in that: The suction cylinder (6) is provided with a liquid storage chamber (26) inside, the inner side of the liquid storage chamber (26) is slidably connected with a piston (5), the top end of the piston (5) is provided with a piston rod (14), and the top end of the piston rod (14) is provided with a control disk (12).

3. The sampling device for clinical biochemical examination according to claim 2, characterized in that: The inner top wall of the liquid storage cavity (26) is provided with an air hole (4).

4. The sampling device for clinical biochemical examination according to any one of claims 1 to 3, characterized in that: The inner wall of the movable channel (2) is provided with a first limiting ring (3) and a second limiting ring (15); the first limiting ring (3) is located above the suction cylinder (6), and the second limiting ring (15) is located below the suction cylinder (6).

5. The sampling device for clinical biochemical examination according to claim 4, characterized in that: The inner side of the slide block (16) is provided with a through groove (24), a locking groove (22) and a sliding groove (21); the upper end of the sliding groove (21) is open; the through groove (24) and the suction tube (19) are plugged in; a locking rod (23) is provided on one side of the suction tube (19); the locking rod (23) and the locking groove (22) and the sliding groove (21) are movably plugged in.

6. The sampling device for clinical biochemical examination according to claim 4, characterized in that: A matching seat (25) is arranged at the top end of the slider (16); the matching seat (25) is a permanent magnet; the second limiting ring (15) and the matching seat (25) are movably pluggable; the material of the second limiting ring (15) is a paramagnetic material.

7. The sampling device for clinical biochemical examination according to claim 1, characterized in that: The connecting tube (7) is in the shape of a funnel.

8. The sampling device for clinical biochemical examination according to claim 5, characterized in that: The limiting ring 1 (3) is provided with a limiting groove 2 (20) through which the control rod (13) passes.

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