A blood cell analyzer

Abstract

This invention discloses a blood cell analyzer, specifically relating to the field of cell analysis. It includes the instrument itself and a detection area for holding blood tubes to be tested. The analyzer is characterized by further including an auxiliary mechanism located at the detection area for storing the blood tubes; and a mounting mechanism including a base positioned below the auxiliary mechanism. The base has an internal mounting slot for inserting the test tubes. The mounting slot is funnel-shaped, with a buffer zone formed between the funnel opening and the test tube. An annular air cushion with a triangular cross-section is located inside the buffer zone. By actuating the protrusions on the ring, each protrusion contacts one end of an elastic strip, causing the elastic strips in the same group to sequentially strike the outer wall of the test tube. The striking force generated by each elastic strip, combined with the action of the base, causes the test tube to move in the opposite direction. The resulting vibration dissipates the viscous blood in the test tube, causing it to flow to the bottom of the test tube.

Description

Technical Field

[0001] This invention relates to the field of cell analysis technology, specifically a blood cell analyzer. Background Technology

[0002] A cell analyzer, also known as a blood cell counter, is a core piece of equipment in the laboratory. It is used to quickly and automatically detect indicators such as red blood cells, white blood cells, and platelets in the blood, which is what we commonly refer to as a complete blood count (CBC).

[0003] This device requires inserting a puncture needle into the test tube cap to draw and analyze the blood stored inside. A published patent (patent number CN118259041B) discloses a blood cell intelligent analyzer that uses a collection needle inserted into the test tube, combined with vibration, to shake off viscous blood that easily adheres to the inner wall of the test tube, allowing the blood to flow to the bottom without reducing the blood volume. However, during use, the continuous impact of the large contact area of ​​the impact plate against the outer wall of the test tube makes it difficult for the blood adhering to the inner wall to flow easily to the bottom. This is because, on the one hand, the vibration force is not concentrated due to the large contact area, and on the other hand, the fixed test tube cannot generate effective vibration force, resulting in poor flow of the adhering blood.

[0004] In response to the problems mentioned above, a blood cell analyzer is now proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a blood cell analyzer that solves the problem in the prior art where the blood that is viscous and adheres to the inner wall of the test tube flows down slowly, resulting in a reduced blood volume during testing and affecting the test results.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A blood cell analyzer includes the instrument itself and a detection area for holding blood tubes to be tested, characterized in that it further includes...

[0008] An auxiliary facility, located at the testing area, is used to store blood test tubes;

[0009] The mounting mechanism includes a base located below the auxiliary mechanism. The base has an installation slot for inserting test tubes. The installation slot is funnel-shaped, and a buffer zone is formed between the funnel opening and the test tube. An annular air cushion with a triangular cross-section is provided inside the buffer zone.

[0010] Support mechanisms are provided on both sides of the auxiliary mechanism and symmetrically distributed along the mounting mechanism;

[0011] The touch mechanism is located inside the support mechanism and moves up and down along its interior.

[0012] As a further embodiment of the present invention: the auxiliary mechanism includes a support plate disposed at the detection point, the upper plate of the support plate having a through hole for the sampling needle to pass through, and the center point of the base and the center of the through hole being on the same vertical axis.

[0013] As a further aspect of the present invention: the mounting groove is made of elastic rubber material on the contact surface with the outer wall of the test tube.

[0014] As a further embodiment of the present invention: the support mechanism includes a support frame fixedly installed on the lower plate, the support frame having a guide groove, a threaded rod fixedly installed at the bottom of the guide groove, and guide rods symmetrically distributed along the threaded rods fixedly installed on the left and right sides of the guide groove, and a sliding block that can slide up and down inside the guide groove is provided on the guide rod, the upper end of the sliding block having a groove, and a threaded column that meshes with the threaded rod is rotatably connected inside the groove.

[0015] As a further embodiment of the present invention: the touch mechanism includes a fixed plate installed on the side of the sliding block near the test tube, and a mounting plate designed parallel to the sliding block is fixedly installed on the fixed plate. Two sets of symmetrically distributed elastic strips are hinged to both sides of the mounting plate, and a toggle ring is synchronously connected to the upper end of the threaded column.

[0016] As a further embodiment of the present invention: each group of elastic strips consists of three strips, one end of which is close to the outer wall of the test tube and the other end is close to the actuating ring, and the actuating ring is provided with four evenly distributed protrusions.

[0017] As a further embodiment of the present invention: the portion of the elastic strip near the outer wall of the test tube is distributed circumferentially with the axis of the test tube as the center.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] This blood cell analyzer works by placing a test tube into the mounting slot. When the test tube is subjected to vibration from above, the bottom uses elastic contact, causing the entire test tube to vibrate with the bottom as the fixed point. The annular air cushion plays a role in fixing the test tube during use. For example, if the left side of the test tube vibrates, the test tube will tend to move to the right. The right side of the annular air cushion will be compressed, causing the gas to move to the left. The gas volume on the left side increases, compressing and fixing the test tube.

[0020] Additionally, when the threaded post drives the actuating ring to rotate, the protrusion on the actuating ring contacts one end of the elastic strip, causing the elastic strip to rotate on the mounting plate. When the protrusion leaves the elastic strip, the elastic strip rebounds under the action of the elastic element, and the other end, under the action of the rebound force, contacts the outer wall of the test tube, striking the test tube. To protect the test tube, the part of the elastic strip that contacts the test tube is made of rubber pad. By having the protrusions on the actuating ring contact one end of the elastic strip one by one, the elastic strips in the same group are driven to strike the outer wall of the test tube in sequence. The striking force generated by each elastic strip, in conjunction with the action of the base, causes the test tube to have an opposite tendency to move, and the resulting vibration force shakes the viscous blood in the test tube, causing it to flow to the bottom of the test tube. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a blood cell analyzer.

[0022] Figure 2 This is a schematic diagram of the overall structure of the auxiliary mechanism;

[0023] Figure 3 A schematic diagram of the structure in which the test tube is fixed on the base;

[0024] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5 This is a schematic diagram showing the overall position of the test tube relative to the support mechanism after it has been fixed in place.

[0026] Figure 6 This is a schematic diagram showing the positional relationship between the test tube, the support mechanism, and the contact mechanism.

[0027] Figure 7 This is a schematic diagram of the overall structure of the test tube and the elastic strip;

[0028] Figure 8 for Figure 5 Enlarged diagram of point B in the middle.

[0029] In the diagram: 10. Auxiliary mechanism; 11. Support plate; 12. Through hole; 20. Mounting mechanism; 21. Base; 22. Mounting groove; 23. Annular air cushion; 30. Support mechanism; 31. Support frame; 32. Guide groove; 33. Threaded rod; 34. Guide rod; 35. Sliding block; 36. Threaded column; 40. Point contact mechanism; 41. Fixed plate; 42. Mounting plate; 43. Elastic strip; 44. Actuating ring. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0031] like Figure 1 and Figure 2 The diagram shows the overall structure of a blood cell analyzer, which includes the instrument itself and a detection area for placing blood tubes to be tested. Building upon existing technology, this invention further includes an auxiliary mechanism 10. This auxiliary mechanism 10 includes a support plate 11 disposed at the detection area. The upper plate of the support plate 11 has a through hole 12 for a collection needle to pass through. The lower plate of the support plate 11 is fixedly mounted with a mounting mechanism 20 for fixing the test tubes. Furthermore, a support mechanism 30 symmetrically distributed along the mounting mechanism 20 is mounted on the lower plate. A movable touch mechanism 40 is provided on the support mechanism 30.

[0032] Specifically, such as Figure 3 and Figure 4 As shown, the mounting mechanism 20 includes a base 21 fixedly mounted to the lower plate. The center point of the base 21 and the center of the through hole 12 are on the same vertical axis. An mounting groove 22 is provided inside the base 21, into which the test tube can be directly inserted. The mounting groove 22 is funnel-shaped, with a buffer zone formed between the funnel opening and the test tube. An annular air cushion 23 is fixedly mounted inside the buffer zone, and the cross-section of the annular air cushion 23 is triangular. Furthermore, the contact surface between the mounting groove 22 and the outer wall of the test tube is made of elastic rubber material. In this embodiment, when the test tube is placed in the mounting groove 22 and subjected to vibration from above, the bottom uses elastic contact, causing the entire test tube to vibrate with the bottom as the fixed point. The annular air cushion 23 serves a fixing function. For example, if vibration occurs on the left side of the test tube, the test tube will tend to move to the right. The right side of the annular air cushion 23 will be compressed, causing the gas to move to the left, increasing the gas volume on the left and compressing and fixing the test tube.

[0033] like Figure 5 and Figure 6As shown, the support mechanism 30 includes a support frame 31 fixedly mounted on the lower plate. A guide groove 32 is provided on the support frame 31. A threaded rod 33 is fixedly installed at the bottom end of the guide groove 32. Guide rods 34, symmetrically distributed along the threaded rod 33, are also fixedly installed on the left and right sides of the guide groove 32. A sliding block 35 is provided on the guide rod 34, which can slide up and down inside the guide groove 32. The sliding block 35 is driven by an external drive device, preferably an electric push rod. A groove is provided at the upper end of the sliding block 35, and a threaded post 36, which meshes with the threaded rod 33, is rotatably connected inside the groove. In this embodiment, when the sliding block 35 is driven to move by the drive device, the threaded post 36 in the sliding block 35 will rotate under the action of the threaded rod 33.

[0034] like Figure 7 and Figure 8 As shown, the touch mechanism 40 includes a fixed plate 41 installed on the side of the sliding block 35 near the test tube. A mounting plate 42 designed parallel to the sliding block 35 is fixedly installed on the fixed plate 41. Two sets of symmetrically distributed elastic strips 43 are hinged to both sides of the mounting plate 42. The upper end of the threaded column 36 is synchronously rotatably connected to a toggle ring 44. Each set of elastic strips 43 has three strips. One end of each elastic strip 43 is close to the outer wall of the test tube, and the other end is close to the toggle ring 44. The toggle ring 44 is provided with four evenly distributed protrusions. In this embodiment, when the threaded post 36 drives the actuating ring 44 to rotate, the protrusion on the actuating ring 44 contacts one end of the elastic strip 43, causing the elastic strip 43 to rotate on the mounting plate 42. When the protrusion leaves the elastic strip 43, the elastic strip 43 rebounds under the action of the elastic element, and then the other end contacts the outer wall of the test tube under the action of the rebound force, striking the test tube. To protect the safety of the test tube, the part of the elastic strip 43 that contacts the test tube is made of rubber pad. In this embodiment, by having the protrusion on the actuating ring 44 contact one end of the elastic strip 43 one by one, the elastic strips 43 in the same group are driven to strike the outer wall of the test tube in sequence. The striking force generated by each elastic strip 43, in conjunction with the action of the base 21, causes the test tube to produce an opposite movement tendency, and the resulting vibration force shakes the viscous blood in the test tube, causing it to flow to the bottom of the test tube.

[0035] Furthermore, in order to improve the efficiency of viscous blood processing, the rotation speeds of the two sets of levers 44 can be made different, or the distribution position of the protrusions can be changed when the rotation speeds of the levers 44 are the same, thereby ensuring that the elastic strips 43 in both sets make independent contact with the test tube, reducing the probability of overlapping knocks.

[0036] Furthermore, the portion of the elastic strip 43 near the outer wall of the test tube is distributed circumferentially around the axis of the test tube, ensuring that the elastic strip 43 can act on the outer wall of the test tube over a larger area, thereby achieving a wider range of impact on the outer wall of the test tube.

[0037] like Figure 6 and Figure 7 As shown, during use, the test tube is inserted into the base 21 of the mounting mechanism 20 from top to bottom. The collection needle enters the test tube through the through hole 12 to draw blood. During the drawing process, the sliding block 35 is driven by the drive device to move up and down in the guide groove 32 opened on the support frame 31. During the movement, the threaded column 36 rotates on the threaded rod 33 due to the meshing connection, which in turn drives the actuating ring 44 to rotate. The protrusion on the actuating ring 44 rotates synchronously. The protrusion passes through the elastic strip 43 and contacts it. When the elastic strip 43 is rotated, it is moved in the direction of rotation. As the rotation continues, the protrusion will disengage from the elastic strip 43. At this moment, the elastic element set at the rotating part of the elastic strip 43 will generate elastic potential energy as the elastic strip 43 is moved. At the moment of disengagement, the elastic potential energy is released and forms kinetic energy. The other end of the elastic strip 43 will contact the outer wall of the test tube. As the sliding block 35 moves downward, the elastic strip 43 will act on the outer wall of the test tube from top to bottom, tapping the test tube and thus forming a top-down vibration and flow guiding effect. During blood collection, this can accelerate the flow of the deposits on the inner wall of the test tube to the bottom of the test tube.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A blood cell analyzer, comprising the instrument itself and a detection area for holding blood tubes to be tested, characterized in that, Also includes An auxiliary device (10) is installed at the testing area for storing blood test tubes; The mounting mechanism (20) includes a base (21) located below the auxiliary mechanism (10). The base (21) has an installation groove (22) for inserting test tubes. The installation groove (22) is funnel-shaped, and a buffer zone is formed between the funnel opening and the test tube. An annular air cushion (23) with a triangular cross-section is provided inside the buffer zone. The support mechanism (30) is arranged on both sides of the auxiliary mechanism (10) and symmetrically distributed along the mounting mechanism (20); The touch mechanism (40) is located inside the support mechanism (30) and moves up and down along its interior.

2. The blood cell analyzer according to claim 1, characterized in that, The auxiliary mechanism (10) includes a support plate (11) set at the detection point. The upper plate of the support plate (11) has a through hole (12) for the collection needle to pass through. The center point of the base (21) and the center of the through hole (12) are on the same vertical axis.

3. A blood cell analyzer according to claim 2, characterized in that, The mounting groove (22) is made of elastic rubber material on the contact surface with the outer wall of the test tube.

4. A blood cell analyzer according to claim 2, characterized in that, The support mechanism (30) includes a support frame (31) fixedly installed on the lower plate. A guide groove (32) is provided on the support frame (31). A threaded rod (33) is fixedly installed at the bottom of the guide groove (32). Guide rods (34) symmetrically distributed along the threaded rod (33) are also fixedly installed on the left and right sides of the guide groove (32). A sliding block (35) is provided on the guide rod (34) and can slide up and down inside the guide groove (32). A groove is provided at the upper end of the sliding block (35). A threaded column (36) that meshes with the threaded rod (33) is rotatably connected inside the groove.

5. A blood cell analyzer according to claim 4, characterized in that, The touch mechanism (40) includes a fixed plate (41) installed on the side of the sliding block (35) near the test tube. A mounting plate (42) designed parallel to the sliding block (35) is fixedly installed on the fixed plate (41). Two sets of symmetrically distributed elastic strips (43) are hinged on both sides of the mounting plate (42). A toggle ring (44) is synchronously connected to the upper end of the threaded column (36).

6. A blood cell analyzer according to claim 5, characterized in that, Each set of elastic strips (43) consists of three strips. One end of each elastic strip (43) is close to the outer wall of the test tube, and the other end is close to the actuating ring (44). The actuating ring (44) has four evenly distributed protrusions.

7. A blood cell analyzer according to claim 6, characterized in that, The elastic strip (43) near the outer wall of the test tube is distributed in a circular pattern with the test tube axis as the center.

Images