Anti-falling vacuum blood collection tube

Abstract

The utility model discloses an anti-drop vacuum blood collection tube which comprises a blood collection tube body, an external thread rubber plug sheath is arranged above the blood collection tube body, an internal thread connecting groove is formed in the upper surface of the blood collection tube body, and an annular sliding groove is formed in the outer surface of the external thread rubber plug sheath. The inner wall of the annular sliding groove is slidably connected with two U-shaped fixing frames. According to the device, the internal thread connecting groove and the external thread rubber plug sheath are arranged, the internal thread connecting groove is in threaded connection with the external thread rubber plug sheath, vacuum sealing can be conveniently conducted on the blood sampling tube body, the annular sliding groove is in sliding connection with the U-shaped fixing frame in a matched mode, and an anti-disengaging assembly can be conveniently moved; in addition, by combining the resilience force of the telescopic spring, the sliding connection between the connecting seat and the T-shaped connecting rod, the sliding connection between the positioning seat and the T-shaped connecting rod, and the matching between the limiting rod and the limiting clamping seat, the external thread rubber plug sheath can be conveniently pulled and limited, and the situation that the external thread rubber plug sheath is loosened and falls off due to vibration is avoided.

Description

Technical Field

[0001] This utility model relates to the field of vacuum blood collection tubes, and in particular to a vacuum blood collection tube designed to prevent detachment. Background Technology

[0002] Vacuum blood collection tubes, as a type of medical device consumable used in clinical laboratories in conjunction with blood collection needles and needle holders for the collection, storage, transportation, and pretreatment of blood samples for venous serum, plasma, or whole blood testing, are widely used in clinical practice due to their simple structure, low manufacturing cost, and ease of use. The principle of vacuum blood collection tubes is to pre-evacuate the collection tube with a cap to different degrees of vacuum, and use the negative pressure to automatically and quantitatively collect venous blood samples. After one end of the blood collection needle is inserted into the human vein, the other end is inserted into the rubber stopper of the vacuum blood collection tube. Under the action of negative pressure inside the vacuum blood collection tube, the human venous blood automatically enters the vacuum blood collection tube through the blood collection needle. When manufacturing vacuum blood collection tubes, it is necessary to first evacuate the inside of the collection tube to a vacuum, and then fix the cap to the collection tube.

[0003] Currently, vacuum blood collection tubes play a significant role in the medical industry. These tubes are sealed to the test tube via a threaded connection, but during long-distance or bumpy transport, this threaded connection can loosen, causing the rubber stopper to separate from the test tube. If the stopper is not tightened promptly, the stopper may also fall off, greatly affecting the safety of the blood inside the collection tube. Therefore, we propose an anti-detachment vacuum blood collection tube to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum blood collection tube that prevents it from falling off, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A vacuum blood collection tube designed to prevent detachment includes a blood collection tube body. An externally threaded rubber plug sheath is provided on the upper surface of the blood collection tube body. An internally threaded connecting groove is formed on the upper surface of the blood collection tube body. An annular sliding groove is formed on the outer surface of the externally threaded rubber plug sheath. Two U-shaped fixing brackets are slidably connected to the inner wall of the annular sliding groove. A T-shaped connecting rod is hinged to the inner side wall of each U-shaped fixing bracket via a first pin. A connecting seat is slidably connected to the outer surface of each T-shaped connecting rod. A limit rod is fixedly connected to the outer surface of each connecting seat. A telescopic spring is sleeved on the outer surface of each T-shaped connecting rod. A positioning seat is slidably connected to the outer surface of each T-shaped connecting rod. Two limit locking seats are fixedly connected to the outer surface of the blood collection tube body.

[0007] In a further embodiment, a T-shaped push rod is fixedly connected to the upper surface of each positioning seat, and the upper surface of each positioning seat is in contact with the bottom surface of the U-shaped fixing frame.

[0008] In a further embodiment, two pull rings are fixedly connected to the upper surface of the external threaded rubber plug sleeve, and each pull ring has anti-slip texture on its outer surface.

[0009] In a further embodiment, a protective sleeve is provided on the outer surface of the blood collection tube body, and the protective sleeve is made of rubber.

[0010] In a further embodiment, a protective base is fixedly connected to the bottom surface of the blood collection tube body, and each of the limiting rods is adapted to the limiting seat.

[0011] In a further embodiment, the bottom end of each of the telescopic springs is fixedly connected to the upper surface of the connecting seat, and the top end of each of the telescopic springs is fixedly connected to the bottom surface of the positioning seat.

[0012] In a further embodiment, a drain valve is fixedly connected to the outer surface of the blood collection tube body, and the external threaded rubber plug sleeve is adapted to the internal threaded connecting groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This device features an internally threaded connecting groove and an externally threaded rubber plug sleeve. The internal threaded connecting groove and the externally threaded rubber plug sleeve are connected by threads, facilitating vacuum sealing of the blood collection tube. It also features a sliding connection between an annular groove and a U-shaped fixing frame, allowing for easy movement of the anti-dislodgement component. Furthermore, the device utilizes the rebound force of a telescopic spring, with the connecting seat and T-shaped connecting rod slidingly connected, the positioning seat and T-shaped connecting rod slidingly connected, and the limiting rod and limiting seat adapting to each other. This allows for easy pulling and limiting of the externally threaded rubber plug sleeve, preventing it from loosening and falling off due to vibration. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of the blood collection tube body to prevent vacuum loss.

[0016] Figure 2 A side view of the blood collection tube body in a vacuum-preventing blood collection tube.

[0017] Figure 3 Rear view of the blood collection tube body in a vacuum-preventing blood collection tube.

[0018] Figure 4 A bottom view of the externally threaded rubber plug sheath in a vacuum blood collection tube to prevent it from coming loose.

[0019] Figure 5 To prevent vacuum blood collection tubes from coming off Figure 2 A magnified structural diagram of part A in the middle.

[0020] In the diagram: 1. Blood collection tube body; 2. Internal threaded connecting groove; 3. External threaded rubber plug sleeve; 4. Annular sliding groove; 5. U-shaped fixing bracket; 6. T-shaped connecting rod; 7. Connecting seat; 8. Limiting rod; 9. Telescopic spring; 10. Positioning seat; 11. Limiting bracket; 12. T-shaped push rod; 13. Pull ring; 14. Drain valve; 15. Protective sleeve; 16. Protective base. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5In this utility model, an anti-dislodgement vacuum blood collection tube includes a blood collection tube body 1. An externally threaded rubber plug sleeve 3 is provided on the upper part of the blood collection tube body 1. An internally threaded connecting groove 2 is formed on the upper surface of the blood collection tube body 1. An annular sliding groove 4 is formed on the outer surface of the externally threaded rubber plug sleeve 3. Two U-shaped fixing brackets 5 are slidably connected to the inner wall of the annular sliding groove 4. A T-shaped connecting rod 6 is hinged to the inner side wall of each U-shaped fixing bracket 5 via a first pin. A connecting seat 7 is slidably connected to the outer surface of each T-shaped connecting rod 6. A limit rod 8 is fixedly connected to the outer surface of each connecting seat 7. A telescopic spring 9 is sleeved on the outer surface of each T-shaped connecting rod 6. The outer surface of the blood collection tube body 1 is slidably connected with positioning seats 10. The outer surface of the blood collection tube body 1 is fixedly connected with two limiting seats 11. The internal threaded connecting groove 2 and the external threaded rubber plug sleeve 3 are threadedly connected, which can facilitate vacuum sealing of the blood collection tube body 1. It is also slidably connected with the U-shaped fixing frame 5 in conjunction with the annular sliding groove 4, which can facilitate the movement of the anti-dislodgement component. In addition, combined with the rebound force of the telescopic spring 9, the connecting seat 7 is slidably connected with the T-shaped connecting rod 6, the positioning seat 10 is slidably connected with the T-shaped connecting rod 6, and the limiting rod 8 is adapted to the limiting seat 11. It can be conveniently pulled and limited by the external threaded rubber plug sleeve 3 to prevent it from vibrating, loosening and falling off.

[0025] Each positioning seat 10 has a T-shaped push rod 12 fixedly connected to its upper surface. The upper surface of each positioning seat 10 is in contact with the bottom surface of the U-shaped fixing frame 5. The T-shaped push rod 12 can be used to press down the limiting rod 8. Two pull rings 13 are fixedly connected to the upper surface of the external thread rubber plug sleeve 3. Each pull ring 13 has anti-slip texture on its outer surface. The pull ring 13 can be used to rotate the external thread rubber plug sleeve 3. The outer surface of the blood collection tube body 1 is covered with a protective sleeve 15. The protective sleeve 15 is made of rubber. The protective sleeve 15 can protect the blood collection tube body 1 and prevent it from being damaged by impact.

[0026] A protective base 16 is fixedly connected to the bottom surface of the blood collection tube body 1. Each limiting rod 8 is adapted to the limiting seat 11. The protective base 16 can protect the bottom of the blood collection tube body 1. The bottom end of each telescopic spring 9 is fixedly connected to the upper surface of the connecting seat 7. The top end of each telescopic spring 9 is fixedly connected to the bottom surface of the positioning seat 10. This can improve the positioning effect of the connecting seat 7 and the positioning seat 10. A drain valve 14 is fixedly connected to the outer surface of the blood collection tube body 1. The external thread rubber plug sleeve 3 is adapted to the internal thread connecting groove 2. The drain valve 14 can be used to easily drain the blood inside the blood collection tube body 1.

[0027] The working principle of this utility model is as follows:

[0028] First, pour blood into the blood collection tube body 1, and rotate the external threaded rubber plug sleeve 3 to connect it with the internal threaded connecting groove 2. Then, rotate the U-shaped fixing bracket 5 above the limiting seat 11, and simultaneously pull the T-shaped connecting rod 6 to tilt it. Then, press the T-shaped pushing rod 12 to lower the limiting rod 8, and pull the limiting rod 8 to move it below the limiting seat 11. Then, release the T-shaped pushing rod 12. At the same time, the rebound force of the telescopic spring 9 can make the limiting rod 8 lock into the limiting seat 11, which prevents the external threaded rubber plug sleeve 3 from separating from the blood collection tube body 1. The above is the complete usage process of this utility model.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A no-draw vacuum blood collection tube, characterized in that: The utility model relates to a blood collection tube body (1) is provided with the outer thread rubber plug sheath (3) on the upper side, the upper surface of blood collection tube body (1) is opened the female thread connection groove (2), the outer surface of outer thread rubber plug sheath (3) is opened annular slide groove (4), the inner wall of annular slide groove (4) is connected with two U type fixed frame (5) slidingly, the inner side wall of each U type fixed frame (5) is all connected with T type connecting rod (6) through first pin shaft hinged, the outer surface of each T type connecting rod (6) is all connected with connecting seat (7) slidingly, the outer surface of each connecting seat (7) is all fixedly connected with limiting rod (8), the outer surface of each T type connecting rod (6) is all set up telescopic spring (9), the outer surface of each T type connecting rod (6) is all connected with positioning seat (10) slidingly, the outer surface of blood collection tube body (1) is fixedly connected with two limit clamping seat (11).

2. The anti-draw vacuum blood collection tube according to claim 1, wherein: The upper surface of each positioning seat (10) is fixedly connected with T type push rod (12), and the upper surface of each positioning seat (10) is in contact with the bottom surface of U type fixed frame (5).

3. The anti-draw vacuum blood collection tube according to claim 1, wherein: The upper surface of outer thread rubber plug sheath (3) is fixedly connected with two pull rings (13), and the outer surface of each pull ring (13) is opened anti -skid line.

4. The anti-draw vacuum blood collection tube according to claim 1, wherein: The outer surface of blood collection tube body (1) is set with protective sleeve (15), and the protective sleeve (15) is made of rubber material.

5. The anti-draw vacuum blood collection tube according to claim 1, wherein: The bottom surface of blood collection tube body (1) is fixedly connected with protective base (16), and each limiting rod (8) is matched with limit clamping seat (11).

6. The anti-draw vacuum blood collection tube according to claim 1, wherein: The bottom end of each telescopic spring (9) is fixedly connected with the upper surface of connecting seat (7), and the top end of each telescopic spring (9) is fixedly connected with the bottom surface of positioning seat (10).

7. The anti-draw vacuum blood collection tube according to claim 1, wherein: The outer surface of blood collection tube body (1) is fixedly connected with drainage valve (14), and the outer thread rubber plug sheath (3) is matched with female thread connection groove (2).

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