Plasma extraction device for blood detection

Abstract

The plasma extraction device comprises a cylinder body, a rotating disc is installed at the top of the cylinder body through an auxiliary rotating mechanism, an installation groove is formed in the side face of the rotating disc, a first threaded rod is arranged at the top of the rotating disc in a threaded and sleeved mode, a blocking plate is arranged at one end of the first threaded rod, and a second threaded rod is arranged at the other end of the blocking plate. A supporting plate is fixedly mounted at the top of the barrel, and a mounting column is mounted on one side of the supporting plate through a moving mechanism. By rotating a rotating disc, the rotating disc drives a first threaded rod to ascend and descend, and the first threaded rod drives a blocking plate to ascend and descend, so that the blocking plate blocks the path of a piston at different positions, the capacity in a barrel can be adjusted, and after adjustment is completed, a second threaded rod is rotated, and the second threaded rod drives a moving plate to move; and the moving plate drives the mounting column to move, so that the mounting column reaches the inner wall of the mounting groove, the rotating disc can be limited and fixed, and the adjustment of the internal capacity of the barrel can be completed.

Description

Technical Field

[0001] The utility model relates to the technical field of plasma extraction, in particular to a plasma extraction device for blood testing. Background Art

[0002] Blood is a red, opaque, viscous liquid that flows in human blood vessels and hearts. Blood is composed of plasma and blood cells. One liter of plasma contains 900-910 grams of water, 65-85 grams of protein, and 20 grams of low-molecular substances. Low-molecular substances contain a variety of electrolytes and organic compounds. Blood cells include three types of cells: red blood cells, white blood cells, and platelets. When testing blood, an extraction device is usually required to extract plasma.

[0003] When using an extraction device to extract plasma, a syringe is usually used for extraction. However, the internal capacity of the barrel of the existing syringe is fixed. For example, application number: 202021673926.4 discloses a plasma extraction device for blood testing, which uses a motor to control the piston to rise and fall, but it is also impossible to control its internal capacity. This results in the need to manually observe the syringe when different volumes of plasma need to be extracted, which is not conducive to adjusting its capacity and the use of the syringe. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a plasma extraction device for blood testing, which solves the problems in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A plasma extraction device for blood testing comprises a barrel, a rotating disk is installed on the top of the barrel through an auxiliary rotating mechanism, a mounting groove is opened on the side of the rotating disk, a first threaded rod is threadedly sleeved on the top of the rotating disk, a blocking plate is arranged at one end of the first threaded rod, a support plate is fixedly installed on the top of the barrel, a mounting column is installed on one side of the support plate through a moving mechanism, the surface of the mounting column cooperates with the inner wall of the mounting groove, and a limiting mechanism is arranged on the top of the barrel.

[0007] Preferably, the auxiliary rotating mechanism comprises an annular groove formed on the top of the cylinder, an annular block is slidably mounted on the inner wall of the annular groove, and the top of the annular block and the bottom of the rotating disk are fixedly mounted.

[0008] Preferably, the moving mechanism comprises a second threaded rod threadedly mounted on one side of the support plate, a moving plate is rotatably mounted on one end of the second threaded rod, and one side of the moving plate and one end of the mounting column are fixedly mounted.

[0009] Preferably, the limiting mechanism comprises a limiting groove opened at the top of the cylinder, a limiting block is slidably mounted on the inner wall of the limiting groove, and the top of the limiting block and the bottom of the movable plate are fixedly mounted.

[0010] Preferably, a piston is slidably mounted on the inner wall of the cylinder, a connecting rod is fixedly mounted on the top of the piston, and a handle is fixedly mounted on one end of the connecting rod.

[0011] Preferably, a cannula is provided at the bottom of the cylinder, and a scale line is fixedly installed on one side of the cylinder.

[0012] Preferably, the number of the rotating disks is two and they are symmetrically arranged, and the number of the mounting grooves is multiple and they are arranged in a circular array.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the plasma extraction device for blood testing can adjust the capacity inside the cylinder by rotating the rotating disk, which drives the first threaded rod to rise and fall, and the first threaded rod drives the blocking plate to rise and fall, so that the blocking plate blocks the path of the piston at different positions. After the adjustment is completed, the second threaded rod is rotated, the second threaded rod drives the moving plate to move, and the moving plate drives the mounting column to move, so that the mounting column reaches the inner wall of the mounting groove, and the rotating disk can be limited and fixed, so as to complete the adjustment of the internal capacity of the cylinder, thereby achieving the purpose of facilitating the adjustment of the internal capacity of the cylinder, and the structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the positive equalization diagram of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the front cross-sectional view of the utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the side sectional view of the utility model;

[0017] Figure 4 For this utility model Figure 3 The structural diagram of the enlarged view at A in the middle;

[0018] Figure 5 It is a structural schematic diagram of a partial upper cross-section of the utility model.

[0019] In the figure: 1, cylinder; 2, annular groove; 3, annular block; 4, rotating disk; 5, mounting groove; 6, first threaded rod; 7, blocking plate; 8, supporting plate; 9, second threaded rod; 10, moving plate; 11, mounting column; 12, limiting groove; 13, limiting block; 14, piston; 15, connecting rod; 16, handle; 17, intubation tube; 18, scale line. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example: Refer to Figure 1-5 The utility model provides a technical solution, a plasma extraction device for blood testing, comprising a cylinder 1, a piston 14 is slidably mounted on the inner wall of the cylinder 1, a connecting rod 15 is fixedly mounted on the top of the piston 14, a handle 16 is fixedly mounted on one end of the connecting rod 15, a cannula 17 is arranged at the bottom of the cylinder 1, a scale line 18 is fixedly mounted on one side of the cylinder 1, a rotating disk 4 is mounted on the top of the cylinder 1 through an auxiliary rotating mechanism, the auxiliary rotating mechanism comprises an annular groove 2 opened at the top of the cylinder 1, an annular block 3 is slidably mounted on the inner wall of the annular groove 2, the top of the annular block 3 and the bottom of the rotating disk 4 are fixedly mounted, so that the rotating disk 4 can be driven manually to rotate,

[0022] Specifically, a mounting groove 5 is opened on the side of the rotating disk 4, a first threaded rod 6 is threadedly sleeved on the top of the rotating disk 4, a blocking plate 7 is provided at one end of the first threaded rod 6, a support plate 8 is fixedly installed on the top of the cylinder 1, the number of rotating disks 4 is two groups, and they are symmetrically arranged, the number of mounting grooves 5 is multiple groups, and they are arranged in a circular array.

[0023] Specifically, a mounting column 11 is installed on one side of the support plate 8 through a moving mechanism, and the moving mechanism includes a second threaded rod 9 threadedly installed on one side of the support plate 8, and a moving plate 10 is rotatably installed on one end of the second threaded rod 9. One side of the moving plate 10 and one end of the mounting column 11 are fixedly installed, and the surface of the mounting column 11 cooperates with the inner wall of the mounting groove 5, so that the mounting column 11 can reach the inner wall of the mounting groove 5 to complete the installation setting.

[0024] Specifically, a limiting mechanism is arranged on the top of the cylinder 1, and the limiting mechanism includes a limiting groove 12 opened on the top of the cylinder 1, and a limiting block 13 is slidably installed on the inner wall of the limiting groove 12, and the top of the limiting block 13 and the bottom of the movable plate 10 are fixedly installed, which is convenient for limiting the movable plate 10, so that the movement of the movable plate 10 is more stable. By rotating the rotating disk 4, the rotating disk 4 drives the first threaded rod 6 to rise and fall, and the first threaded rod 6 drives the blocking plate 7 to rise and fall, so that the blocking plate 7 blocks the path of the piston 14 at different positions, so as to adjust the capacity inside the cylinder 1. After the adjustment is completed, by rotating the second threaded rod 9, the second threaded rod 9 drives the movable plate 10 to move, and the movable plate 10 drives the mounting column 11 to move, so that the mounting column 11 reaches the inner wall of the mounting groove 5, the rotating disk 4 can be limited and fixed, and the adjustment of the internal capacity of the cylinder 1 can be completed, thereby achieving the purpose of facilitating the adjustment of the internal capacity of the cylinder 1, and the structure is simple and easy to use.

[0025] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0026] When in use: When using the plasma extraction device for blood testing, by pulling the handle 16, the handle 16 drives the connecting rod 15 to move, and the connecting rod 15 drives the piston 14 to move, negative pressure can be formed, and plasma can be extracted through the cannula 17, which is convenient for extraction settings. When it is necessary to adjust the capacity inside the cylinder 1, by rotating the rotating disk 4, the rotating disk 4 drives the first threaded rod 6 to rise and fall, and the first threaded rod 6 drives the blocking plate 7 to rise and fall, so that the blocking plate 7 blocks the path of the piston 14 at different positions, the capacity inside the cylinder 1 can be adjusted. After the adjustment is completed, by rotating the second threaded rod 9, the second threaded rod 9 drives the moving plate 10 to move, and the moving plate 10 drives the mounting column 11 to move, so that the mounting column 11 reaches the inner wall of the mounting groove 5, the rotating disk 4 can be limited and fixed, and the adjustment of the internal capacity of the cylinder 1 can be completed, thereby achieving the purpose of facilitating the adjustment of the internal capacity of the cylinder 1. The structure is simple and easy to use.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plasma extraction device for blood testing, comprising a barrel (1), It is characterized in that A rotating disk (4) is installed on the top of the cylinder (1) through an auxiliary rotating mechanism, a mounting groove (5) is provided on the side of the rotating disk (4), a first threaded rod (6) is threadedly sleeved on the top of the rotating disk (4), a blocking plate (7) is provided at one end of the first threaded rod (6), a supporting plate (8) is fixedly installed on the top of the cylinder (1), a mounting column (11) is installed on one side of the supporting plate (8) through a moving mechanism, the surface of the mounting column (11) matches the inner wall of the mounting groove (5), and a limiting mechanism is provided on the top of the cylinder (1).

2. A plasma extraction device for blood testing according to claim 1, It is characterized in that The auxiliary rotating mechanism comprises an annular groove (2) formed on the top of the cylinder (1), an annular block (3) being slidably mounted on the inner wall of the annular groove (2), and the top of the annular block (3) and the bottom of the rotating disk (4) being fixedly mounted.

3. A plasma extraction device for blood testing according to claim 1, It is characterized in that The moving mechanism comprises a second threaded rod (9) threadedly mounted on one side of the support plate (8), one end of the second threaded rod (9) being rotatably mounted with a moving plate (10), and one side of the moving plate (10) and one end of the mounting column (11) being fixedly mounted.

4. A plasma extraction device for blood testing according to claim 3, It is characterized in that The limiting mechanism comprises a limiting groove (12) provided at the top of the cylinder (1), a limiting block (13) being slidably mounted on the inner wall of the limiting groove (12), and the top of the limiting block (13) and the bottom of the movable plate (10) being fixedly mounted.

5. A plasma extraction device for blood testing according to claim 1, It is characterized in that A piston (14) is slidably mounted on the inner wall of the cylinder (1), a connecting rod (15) is fixedly mounted on the top of the piston (14), and a handle (16) is fixedly mounted on one end of the connecting rod (15).

6. A plasma extraction device for blood testing according to claim 1, It is characterized in that The bottom of the cylinder (1) is provided with an insertion tube (17), and a scale mark (18) is fixedly installed on one side of the cylinder (1).

7. A plasma extraction device for blood testing according to claim 1, It is characterized in that The number of the rotating disks (4) is two and they are symmetrically arranged, and the number of the mounting grooves (5) is multiple and they are arranged in a circular array.

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