Erythrocyte sedimentation experiment tube

Abstract

The utility model discloses an erythrocyte sedimentation experiment tube, and belongs to the technical field of medical instruments. Mainly comprises a tube body and a cover body connected to the top of the tube body, the inside of the cover body is hollow, the top of the cover body is provided with a first through hole for a needle tube to penetrate through, the bottom of the cover body is provided with a second through hole, and the inside of the cover body is provided with an opening and closing assembly for controlling opening and closing of the second through hole. According to the erythrocyte sedimentation experiment tube, the needle tube is inserted into the cover body, and the two groups of sealing blocks are separated under the extrusion of the end part of the needle tube and the wedge-shaped block, so that the second through hole is opened, the head part of the needle tube can enter the tube body to inject blood, and when the needle tube is pulled out, the two groups of sealing blocks can close the second through hole under the rebound of the elastic piece; external bacteria can be effectively prevented from entering the tube to cause pollution, and the accuracy of an erythrocyte sedimentation rate detection result is better ensured.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, specifically an erythrocyte sedimentation rate (ESR) test tube. Background Art

[0002] Erythrocyte sedimentation rate (ESR) is a conventional laboratory test method for detecting the sedimentation rate of red blood cells in blood. It indirectly reflects the degree of inflammatory response and the activity of certain diseases by measuring the distance that red blood cells sediment in a vertically placed test tube within a certain period of time. The speed of ESR is usually expressed in millimeters per hour. A faster speed may indicate a higher level of inflammation or other disease activities in the body. An ESR test tube is a special tube dedicated to performing ESR tests. These tubes usually have a scale marked with millimeter graduations for measuring the distance that blood cells sediment within a certain period of time. Usually, medical staff will transfer the blood into this special tube after blood collection for ESR testing.

[0003] Currently, when performing ESR testing, medical staff need to vertically inject the collected blood into the test tube, usually by inserting a syringe through the cap at the top of the test tube. However, after the syringe is withdrawn, there is likely to be a certain gap at the top of the cap, which may cause the test tube to not be completely sealed, allowing external bacteria to easily enter the tube, causing contamination, and further leading to errors in the ESR test results.

[0004] Therefore, it is necessary to provide an ESR test tube to solve the above problems.

[0005] It should be noted that the above information disclosed in this background art section is only used to understand the background art of the concept of this application, and therefore, it may include information that does not constitute the prior art. Summary of the Invention

[0006] Based on the above problems existing in the prior art, the problem to be solved by this application is: to provide an ESR test tube that can achieve a sealing effect on the tube body when the syringe is withdrawn after injecting blood into the tube body through the syringe.

[0007] The technical solution adopted by this application to solve its technical problems is: an ESR test tube, including a tube body and a cap connected to the top of the tube body. The inside of the cap is hollow. A first through hole for the syringe to pass through is opened at the top of the cap, a second through hole is opened at the bottom of the cap, and an opening and closing assembly for controlling the opening and closing of the second through hole is provided inside the cap.

[0008] Further, the opening and closing assembly includes wedge-shaped blocks slidably arranged inside the cap, and two groups of wedge-shaped blocks are symmetrically arranged. An arc-shaped groove is opened on the wedge surface of the wedge-shaped block. A connecting rod is connected to the bottom of the wedge-shaped block, a sealing block is provided at the bottom of the connecting rod, and an elastic member is connected to one side of the wedge-shaped block, and the elastic member is connected to the inner wall of the cap.

[0009] Furthermore, the top surfaces of the two sets of wedge-shaped blocks are in contact with the inner top surface of the connecting ring, and the bottom surface of the sealing block is in contact with the inner bottom surface of the wedge-shaped block.

[0010] Furthermore, a groove is formed on one side of one set of the sealing blocks, and a convex block is provided on one side of the other sealing block. The convex block is adapted to the groove.

[0011] Furthermore, a connecting plate is fixedly provided inside the cover body, and two sets of the connecting plates are symmetrically arranged. The two sets of wedge-shaped blocks are slidably connected to the connecting plate.

[0012] Furthermore, a sliding groove is formed on the inner side of the connecting plate, and a sliding block is provided on the outer side of the wedge-shaped block. The sliding block is slidably connected to the inside of the sliding groove.

[0013] Furthermore, the elastic member is a spring.

[0014] Furthermore, the sealing block is a component made of rubber material.

[0015] Furthermore, the central points of the first through hole and the second through hole are on the same axis.

[0016] Furthermore, an external thread is provided on the outer side of the top of the pipe body, a connecting ring is provided at the bottom of the cover body, and an internal thread matching the external thread is provided inside the connecting ring. The cover body is threadedly connected to the external thread through the connecting ring.

[0017] The beneficial effects of the present application are as follows: For the erythrocyte sedimentation rate test tube provided by the present application, when the syringe needle is inserted into the cover body and the end of the syringe needle presses the wedge-shaped block, the two sets of sealing blocks are separated, so that the second through hole is opened, and the head of the syringe needle can enter the inside of the pipe body to inject blood. When the syringe needle is pulled out, the two sets of sealing blocks can close the second through hole under the rebound of the elastic member, which can effectively prevent external bacteria from entering the pipe and causing pollution, and better ensure the accuracy of the erythrocyte sedimentation rate detection result.

[0018] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The following will refer to the drawings for a further detailed description of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings forming a part of this application are used to provide a further understanding of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application.

[0020] In the drawings:

[0021] Figure 1 is the overall schematic diagram of the erythrocyte sedimentation rate test tube in the present application;

[0022] Figure 2 is Figure 1 the exploded view of

[0023] Figure 3 the sectional view of the cover body in this application;

[0024] Figure 4 the structural schematic diagram of the wedge block, connecting rod and sealing block in this application;

[0025] Figure 5 the structural schematic diagram of the connecting plate, elastic member and slider;

[0026] Figure 6 is Figure 5 the top view of

[0027] Among them, each reference numeral in the figure:

[0028] 1. Pipe body; 11. External thread; 2. Cover body; 21. Connecting ring; 22. First through hole; 23. Second through hole; 24. Opening and closing assembly; 241. Wedge block; 2411. Slider; 242. Arc groove; 243. Connecting rod; 244. Sealing block; 2441. Groove; 2442. Protrusion; 245. Elastic member; 246. Connecting plate; 2461. Slide groove. Specific embodiments

[0029] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will describe this application in detail with reference to the drawings and in combination with the embodiments.

[0030] In order to enable those skilled in the art to better understand the solution of this application, the following will clearly and completely describe the technical solution in the embodiments of this application with reference to the drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0031] As Figures 1 to 6 shown, this application provides an erythrocyte sedimentation rate test tube, including a pipe body 1 and a cover body 2 connected to the top of the pipe body 1. The inside of the cover body 2 is hollow. A first through hole 22 for a syringe needle to pass through is opened at the top of the cover body 2, and a second through hole 23 is opened at the bottom of the cover body 2. The center points of the first through hole 22 and the second through hole 23 are on the same axis. An opening and closing assembly 24 for controlling the opening and closing of the second through hole 23 is provided inside the cover body 2;

[0032] The opening and closing assembly 24 includes a wedge block 241 slidably disposed inside the cover body 2, and two sets of wedge blocks 241 are symmetrically arranged. An arc-shaped groove 242 is formed on the wedge surface of the wedge block 241. A connecting rod 243 is connected to the bottom of the wedge block 241, and a sealing block 244 is provided at the bottom of the connecting rod 243. The sealing block 244 is a component made of rubber material. The rubber sealing block 244 has good sealing performance. An elastic member 245 is connected to one side of the wedge block 241, and the elastic member 245 is connected to the inner wall of the cover body 2. The elastic member 245 is a spring.

[0033] In this embodiment, by inserting the syringe through the first through hole 22, the head of the syringe passes through the arc-shaped groove 242 on the wedge block 241, and then the syringe is inserted downward until the end of the syringe enters the first through hole 22 and abuts against the two sets of wedge blocks 241. Subsequently, under the extrusion of the end of the syringe, the two sets of wedge blocks 241 move towards each other, and the elastic member 245 is compressed. When the wedge blocks 241 move towards each other, the two sets of sealing blocks 244 are driven to move towards each other through the two connecting rods 243, so that the upper port of the second through hole 23 is opened. At this time, the syringe is further pressed down, so that the head of the syringe passes through the second through hole 23 and enters the inside of the tube body 1. Then, blood is injected into the inside of the tube body 1 through the syringe. After the blood injection is completed, the syringe is pulled out upward. When the end of the syringe is separated from the two sets of wedge blocks 241, the elastic member 245 rebounds, causing the two sets of wedge blocks 241 to reset. The two sets of wedge blocks 241 synchronously drive the two sets of sealing blocks 244 to reset, thereby closing the second through hole 23 again. In this way, when injecting blood into the inside of the tube body 1 through the syringe and then pulling out the syringe, the top of the tube body 1 can be immediately closed, effectively preventing other substances such as bacteria from entering the inside of the tube body 1 and causing blood contamination, and further ensuring the accuracy of the erythrocyte sedimentation rate test result.

[0034] As Figure 3 shown, the top surfaces of the two sets of wedge blocks 241 are in contact with the inner top surface of the connecting ring 21, and the bottom surface of the sealing block 244 is in contact with the inner bottom surface of the wedge block 241.

[0035] In this embodiment, the contact between the top surface of the wedge block 241 and the inner top surface of the connecting ring 21 makes the movement of the wedge block 241 more stable. Under the condition that the bottom surface of the sealing block 244 is in contact with the inner bottom surface of the wedge block 241, the sealing block 244 can achieve a better sealing effect on the second through hole 23.

[0036] As Figure 4 shown, a groove 2441 is formed on one side of one set of sealing blocks 244, and a convex block 2442 is provided on one side of the other sealing block 244. The convex block 2442 is adapted to the groove 2441.

[0037] In this embodiment, with the cooperation of the groove 2441 and the convex block 2442, when the two sealing blocks 244 are combined, the convex block 2442 can be inserted into the groove 2441, further improving the sealing performance when the two sealing blocks 244 are combined.

[0038] As Figures 5 to 6 shown, a connecting plate 246 is fixedly provided inside the cover body 2, and two groups of connecting plates 246 are symmetrically arranged. The two wedge-shaped blocks 241 are slidably connected to the connecting plate 246; a sliding groove 2461 is formed inside the inner side of the connecting plate 246, and a sliding block 2411 is provided on the outer side of the wedge-shaped block 241, and the sliding block 2411 is slidably connected inside the sliding groove 2461.

[0039] In this embodiment, when the wedge surface of the wedge-shaped block 241 is squeezed by the end of the syringe, the two wedge-shaped blocks 241 drive the groove 2441 to slide inside the sliding groove 2461, and the connecting plate 246 supports the wedge-shaped block 241 to prevent the wedge-shaped block 241 from shifting during movement.

[0040] As Figure 2 shown, an external thread 11 is provided on the outer side of the top of the tube body 1, and a connecting ring 21 is provided at the bottom of the cover body 2. An internal thread matching the external thread 11 is provided inside the connecting ring 21, and the cover body 2 is threadedly connected to the external thread 11 through the connecting ring 21.

[0041] In this embodiment, after the erythrocyte sedimentation rate experiment is completed, the cover body 2 can be rotated to separate the connecting ring 21 from the external thread 11, so as to separate the cover body 2 from the tube body 1. The cover body 2 can be disinfected and then reinstalled on the upper end of a new tube body 1 for repeated use, further reducing resource waste.

[0042] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. An erythrocyte sedimentation test tube, characterized in that: It includes a tube body and a cover body connected to the top of the tube body, the inside of the cover body is hollow, the top of the cover body is provided with a first through hole for the needle tube to pass through, the bottom of the cover body is provided with a second through hole, and the inside of the cover body is provided with an opening and closing component for controlling the opening and closing of the second through hole.

2. The erythrocyte sedimentation rate test tube according to claim 1, characterized in that: The opening and closing assembly includes a wedge block slidably arranged inside the cover body, and the wedge blocks are symmetrically arranged in two groups, the wedge surfaces of the wedge blocks are provided with arc grooves, the bottom of the wedge block is connected to a connecting rod, the bottom of the connecting rod is provided with a sealing block, one side of the wedge block is connected to an elastic member, and the elastic member is connected to the inner wall of the cover body.

3. The erythrocyte sedimentation rate test tube according to claim 2, characterized in that: The top surfaces of the two groups of wedge-shaped blocks are in contact with the inner top surface of the connecting ring, and the bottom surface of the sealing block is in contact with the inner bottom surface of the wedge-shaped blocks.

4. The erythrocyte sedimentation rate test tube according to claim 3, characterized in that: One side of one set of sealing blocks is provided with a groove, and one side of another sealing block is provided with a convex block, and the convex block is matched with the groove.

5. The erythrocyte sedimentation rate test tube according to claim 4, characterized in that: A connecting plate is fixedly arranged inside the cover body, and two groups of connecting plates are symmetrically arranged, and the two groups of wedge blocks are slidably connected to the connecting plates.

6. The erythrocyte sedimentation rate test tube according to claim 5, characterized in that: A sliding groove is provided on the inner side of the connecting plate, and a sliding block is provided on the outer side of the wedge block. The sliding block is slidably connected to the inside of the sliding groove.

7. The erythrocyte sedimentation rate test tube according to claim 2, characterized in that: The elastic member is a spring.

8. The erythrocyte sedimentation rate test tube according to claim 2, characterized in that: The sealing block is a component made of rubber material.

9. The erythrocyte sedimentation test tube according to claim 1, characterized in that: The center points of the first through hole and the second through hole are located on the same axis.

10. The erythrocyte sedimentation rate test tube according to claim 1, characterized in that: An external thread is arranged on the outer side of the top of the tube body, a connecting ring is arranged on the bottom of the cover body, an internal thread matching the external thread is arranged inside the connecting ring, and the cover body is threadably connected to the external thread through the connecting ring.

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