A new blood collection tube

Abstract

The utility model relates to the field of medical blood collection relates to a novel blood collecting tube, its and base joint, base sets up on the storage box, including blood collecting tube body, the cap that buckles on blood collecting tube body, set up on the pressing subassembly of cap and set up on the self -locking subassembly of blood collecting tube body, drive the part structure on pressing subassembly can make it with self -locking subassembly joint or each other separate from each other. The utility model discloses through pressing pressing head movement, makes it drive inclined block movement and first joint contact, realizes the mutual locking between cap and blood collecting tube body after blood collection again, can effectively avoid the loosening of cap even accidental drop caused by external force factor, can avoid the impurity into blood collecting tube and pollute sample. Through pressing pressing head again, make the inclined block continue to move and third joint contact, while the inclined block promotes second joint movement and first joint contact, cap and blood collecting tube body are unlocked, can pour out the sample in the inside fast, simple operation, convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of medical blood collection, and in particular to a novel blood collection tube. Background Technology

[0002] In the field of medical diagnostics, blood testing, as an important means of obtaining physiological and pathological information about the human body, is widely used in the screening, diagnosis, and monitoring of various diseases. The blood collection tube itself, as a key tool for blood sample collection, storage, and transportation, directly affects the quality of the blood sample, the accuracy of the test results, and the safety of the entire medical process due to its performance and design.

[0003] The current method of using blood collection tubes involves attaching the cap to the tube and then inserting a lancet to collect blood. However, current blood collection tubes do not have a self-locking function. During the blood collection process, factors such as pressure fluctuations, external impacts, or vibrations during transportation can cause the cap to loosen or even fall off accidentally. This not only allows impurities to enter the blood collection tube and contaminate the sample, affecting the accuracy of the test, but also easily leads to blood sample leakage and waste.

[0004] Therefore, it is necessary to design a new type of blood collection tube that can self-lock the cap for blood collection and simultaneously unlock the cap by pressing after blood collection for blood testing, to prevent the cap from accidentally falling off, reduce the risk of leakage and contamination, improve testing accuracy, and be easy to use. Utility Model Content

[0005] To overcome the shortcomings of current blood collection tubes, which lack a self-locking function and are prone to loosening or accidental detachment due to external forces during blood collection, this invention provides a novel blood collection tube that locks the cap and tube body before use, and unlocks them by pressing after collection to prevent accidental detachment, reduce the risk of leakage and contamination, improve detection accuracy, and is easy to use.

[0006] The technical solution is as follows: a new type of blood collection tube that can be snapped into a base, the base being mounted on a storage box. The feature is that it includes a blood collection tube body, a cap that is snapped into the blood collection tube body, a pressing component mounted on the cap, and a self-locking component mounted on the blood collection tube body. Driving a portion of the pressing component allows it to snap into or disengage from the self-locking component.

[0007] Optionally, a groove is provided on the outer side of the blood collection tube body, one end of the self-locking component is fixed to the bottom of the groove, and the other end is provided with a sliding structure, which drives the sliding mechanism to move so as to realize the mutual disengagement of the self-locking component and the pressing component.

[0008] Optionally, the self-locking assembly includes a self-locking body connected at one end to the blood collection tube body, a first connector disposed at the end of the self-locking body away from the groove, and the slidable structure disposed on the self-locking body. The slidable structure includes a slide rail and a second connector sleeved on the self-locking body and slidably connected to the slide rail (501).

[0009] Optionally, the self-locking assembly further includes a third connector sleeved on the self-locking body and slidably connected to the slide rail, and a first spring disposed on the self-locking body and connected to the third connector, wherein the third connector is disposed on the side of the second connector close to the first connector.

[0010] Optionally, both the third connector and the second connector are frustum structures, with their large cross-section ends fitting together, and the large cross-section diameter of the third connector is not greater than that of the second connector.

[0011] Optionally, the first connector is a frustum structure, with its large cross-section end facing the third connector.

[0012] Optionally, the pressing assembly includes an annular limiting plate disposed on the tube cap, a pressing head slidably connected to the annular limiting plate, and an inclined block disposed on the pressing head. Driving the pressing head can move the inclined block between the first connector and the second connector and fit it with the first connector to achieve the snap-fit ​​between the blood collection tube body (3) and the tube cap.

[0013] Optionally, a second spring is provided on the pressing head, and the pressing head can be driven to slide relative to the annular limiting plate to compress the second spring.

[0014] Optionally, a connecting rod is slidably connected to the pressing head. The length direction of the connecting rod is perpendicular to the moving direction of the pressing head, and its end away from the pressing head is connected to the inclined block. A third spring is connected between the connecting rod and the pressing head.

[0015] The beneficial effects are as follows: This invention, by pressing the pressing head, moves the inclined block to contact the first connector, achieving mutual locking between the cap and the blood collection tube body before blood collection. This effectively prevents the cap from loosening or even accidentally falling off due to pressure fluctuations during blood collection, external impacts, or vibrations during transportation. It also prevents impurities from entering the blood collection tube and contaminating the sample, ensuring the accuracy of the test and preventing blood sample leakage and waste. Pressing the pressing head again causes the inclined block to continue moving and contact the third connector. Simultaneously, the inclined block pushes the second connector to contact the first connector, releasing the cap and blood collection tube body from locking. The blood sample can then be quickly poured out for testing. The operation is simple and convenient. Attached Figure Description

[0016] Figure 1This is a partial three-dimensional exploded view of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of the pressing head and other components of this utility model.

[0019] Figure 4 This is a three-dimensional cross-sectional view of the slide rail and other components of this utility model.

[0020] Figure 5 This is a three-dimensional structural diagram of the inclined block and other components of this utility model.

[0021] Figure 6 This is a three-dimensional cross-sectional view of the connecting rod and other components of this utility model.

[0022] Figure 7 This is a three-dimensional cross-sectional view of the first connector and other components of this utility model.

[0023] Figure 8 This is a three-dimensional cross-sectional view of the second connector and other components of this utility model.

[0024] The meanings of the labels in the attached diagram are as follows: 1: storage box, 2: base, 3: blood collection tube body, 4: tube cap, 5: first connector, 501: slide rail, 502: first spring, 503: third connector, 504: second connector, 6: pressing head, 601: annular limiting plate, 602: second spring, 603: inclined block, 604: connecting rod, 605: third spring. Detailed Implementation

[0025] The embodiments of this utility model will be described below with reference to the accompanying drawings.

[0026] like Figures 1-8 The novel blood collection tube shown can be snapped into a base 2, which is mounted on a storage box 1. The base 2 includes a blood collection tube body 3, a cap 4 that snaps onto the blood collection tube body 3, a pressing component on the cap 4, and a self-locking component on the blood collection tube body 3. Driving a portion of the pressing component allows it to engage or disengage from the self-locking component. The bottom of the blood collection tube body 3 is inserted into the base 2, which is located on the upper part of the storage box 1. Handles are provided on both sides of the storage box 1 for easy lifting and transporting of the device. Ten blood collection tube bodies 3 are snapped into the base 2. All blood collection tube bodies 3 are made of transparent material, allowing easy observation of the blood volume contained within. The blood collection tube body 3 and the cap 4 form a sealed cavity for storing blood samples.

[0027] Preferably, a groove is provided on the outer side of the blood collection tube body 3, one end of the self-locking component is fixed to the bottom of the groove, and the other end is provided with a sliding structure, which drives the sliding mechanism to move so as to realize the mutual disengagement of the self-locking component and the pressing component.

[0028] Preferably, the self-locking assembly includes a self-locking body connected at one end to the blood collection tube body 3, a first connector 5 disposed at the end of the self-locking body away from the groove, and the slidable structure disposed on the self-locking body. The slidable structure includes a slide rail 501 and a second connector 504 sleeved on the self-locking body and slidably connected to the slide rail 501.

[0029] Preferably, the self-locking assembly further includes a third connector 503 sleeved on the self-locking body and slidably connected to the slide rail 501, and a first spring 502 disposed on the self-locking body and connected to the third connector 503. The third connector 503 is disposed on the side of the second connector 504 near the first connector 5.

[0030] Preferably, both the third connector 503 and the second connector 504 are frustum structures, with their large cross-section ends fitting together, and the large cross-section diameter of the third connector 503 is not greater than the large cross-section diameter of the second connector 504.

[0031] Preferably, the first connector 5 has a frustum structure, with its large cross-section end facing the third connector 503.

[0032] like Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, the self-locking assembly includes a self-locking body, a first connector 5, a slide rail 501, a first spring 502, a third connector 503, and a second connector 504. The outer side of the blood collection tube body 3 has three inwardly recessed grooves, with three self-locking bodies fixed to the bottom of the grooves. Slide rails 501 are provided on the outer side of the self-locking bodies, and the three slide rails 501 are evenly distributed around the circumference of the self-locking bodies. Figure 4 As shown, the right end of the slide rail 501 is connected to the first connector 5, and its left end is slidably connected to the third connector 503 and the second connector 504. The third connector 503 and the second connector 504 are integrally formed. A first spring 502 is provided on the self-locking body. The left side of the first spring 502 is fixedly connected to the third connector 503. Therefore, when the third connector 503 and the second connector 504 slide to the left simultaneously, the third connector 503 will compress the first spring 502 until the left side of the third connector 503 is in contact with the left side of the first connector 5. After the compressed first spring 502 releases its energy, it will push the third connector 503 and the second connector 504 to move to the left together.

[0033] Preferably, the pressing assembly includes an annular limiting plate 601 disposed on the cap 4, a pressing head 6 slidably connected to the annular limiting plate 601, and an inclined block 603 disposed on the pressing head 6. Driving the pressing head 6 can move the inclined block 603 between the first connector 5 and the second connector 504 and fit it with the first connector 5 to achieve the snap-fit ​​between the blood collection tube body 3 and the cap 4.

[0034] Preferably, the pressing head 6 is provided with a second spring 602, which can compress the second spring 602 by driving the pressing head 6 to slide relative to the annular limiting plate 601.

[0035] Preferably, a connecting rod 604 is slidably connected to the pressing head 6. The length direction of the connecting rod 604 is perpendicular to the moving direction of the pressing head 6, and its end away from the pressing head 6 is connected to the inclined block 603. A third spring 605 is connected between the connecting rod 604 and the pressing head 6. When the connecting rod 604 drives the inclined block 603 to move upward, it compresses the third spring 605. In conjunction with the inclined surface at the end of the inclined block 603, it can flexibly pass over the third connector 503 and the second connector 504, and fit against the left end face of the second connector 504 or the left end face of the first connector 5.

[0036] like Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, the pressing assembly includes a pressing head 6, an annular limiting plate 601, a second spring 602, a wedge block 603, a connecting rod 604, and a third spring 605. Figure 5 As shown, each cap 4 is connected to three sets of annular limiting plates 601. Each set consists of two parallel annular limiting plates 601, and each set of annular limiting plates 601 is slidably connected to the same pressing head 6. A second spring 602 is wrapped around the outside of the pressing head 6. When the pressing head 6 slides to the left, it compresses the second spring 602. One end of the second spring 602 is fixed to the left annular limiting plate 601, and the other end is movably connected to the right annular limiting plate 601, ensuring that the pressing head 6 moves to the left while the second spring 602 is compressed. A connecting rod 604 perpendicular to the direction of movement is provided on the left side of the pressing head 6, and an inclined block 603 is provided on the connecting rod 604. When the pressing head 6 moves to the left, it will drive the connecting rod 604 and the inclined block 603 to move to the left together, causing the inclined block 603 to pass over the first connector 5 and insert between the first connector 5 and the third connector 503, and fit against the left side of the first connector 5, thereby achieving mutual locking between the cap 4 and the blood collection tube body 3 (e.g., Figure 7As shown, the cap 4 and the blood collection tube body 3 are mutually locked, which can effectively prevent the cap from loosening or even accidentally falling off due to factors such as pressure fluctuations during blood collection, external force collisions, or bumps and vibrations during transportation. It can also prevent impurities from entering the blood collection tube and contaminating the sample, without affecting the accuracy of the test, and will not cause blood sample leakage and waste.

[0037] When it is necessary to separate (or unlock) the cap 4 and the blood collection tube body 3, continue pressing the press head 6. This will cause the inclined block 603 to continue moving to the left. Because the side of the inclined block 603 away from the second connector 504 consists of two intersecting inclined surfaces, the inclined block 603 will move to the left side of the second connector 504 after successively crossing the third connector 503 and the second connector 504. At the same time, the second spring 602 will be compressed to its lowest point and then release energy to rebound. This will cause the inclined block 603 to push the third connector 503 and the second connector 504 to move to the right along the slide rail 501 until the right side of the third connector 503 is in contact with the left end face of the first contact head 5 (e.g., Figure 8 As shown in the figure, the cap 4 and the blood collection tube body 3 are separated from each other.

[0038] After blood collection, the storage box 1 is lifted and transported to the laboratory for testing. Then, the blood collection tube body 3 is removed, and the pressing head 6 is pressed again. The second spring 602 is squeezed, causing the inclined block 603 to continue moving and contact the third connector 503, causing the connecting rod 604 to continue moving. This squeezes the inclined block 603 and the connecting rod 604, causing them to move. The third spring 605 is squeezed, causing the inclined block 603 to contact the second connector 504 again. The third spring 605 rebounds, and the inclined block 603 and the connecting rod 604 move in the opposite direction to reset. Then, the pressing head 6 is released, the second spring 602 rebounds, and the pressing head 6 moves in the opposite direction to reset. This causes the connecting rod 604 to move in the opposite direction to reset, causing the inclined block 603 to push the second connector 504 to move and contact the first connector 5, causing the third connector 503 to move along the slide rail 501. The first spring 502 is squeezed, thus unlocking the device. The slide rail 501 is evenly distributed along the blood collection tube body 3. After the third spring 605 is squeezed, it rebounds. The inclined block 603 and the connecting rod 604 move in opposite directions to reset, causing the inclined block 603 to disengage from the second connector 504. The first spring 502 rebounds, and the third connector 503 and the second connector 504 move to reset. Then the tube cap 4 can be removed, and blood can be extracted for testing. This allows the tube cap 4 to be self-locked for blood collection while simultaneously unlocking it after blood collection for blood testing. This prevents the tube cap 4 from accidentally falling off, reduces the risk of leakage and contamination, improves testing accuracy, and is convenient to use. In summary, by pressing the pressing head 6, the inclined block 603 engages with the first connector 5, thus achieving self-locking. By pressing the pressing head 6 again, the inclined block 603 engages with the third connector 503 and the second connector 504, thus achieving automatic unlocking.

[0039] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent substitutions made within the principles of this utility model should be included within the protection scope of this utility model. Contents not described in detail in this utility model are existing technologies known to those skilled in the art.

Claims

1. A novel blood collection tube, which can be snapped into a base (2), the base (2) being mounted on a storage box (1), characterized in that: It includes a blood collection tube body (3), a cap (4) fastened to the blood collection tube body (3), a pressing component set on the cap (4), and a self-locking component set on the blood collection tube body (3). Driving a part of the structure on the pressing component can make it engage with or disengage from the self-locking component.

2. The novel blood collection tube as described in claim 1, characterized in that: A groove is provided on the outside of the blood collection tube body (3). One end of the self-locking component is fixed to the bottom of the groove, and the other end is provided with a sliding structure. The sliding mechanism is driven to move so as to realize the mutual disengagement of the self-locking component and the pressing component.

3. The novel blood collection tube as described in claim 2, characterized in that: The self-locking assembly includes a self-locking body connected at one end to the blood collection tube body (3), a first connector (5) disposed at the end of the self-locking body away from the groove, and the slidable structure disposed on the self-locking body. The slidable structure includes a slide rail (501) and a second connector (504) sleeved on the self-locking body and slidably connected to the slide rail (501).

4. A novel blood collection tube as described in claim 3, characterized in that: The self-locking assembly further includes a third connector (503) sleeved on the self-locking body and slidably connected to the slide rail (501), and a first spring (502) disposed on the self-locking body and connected to the third connector (503). The third connector (503) is disposed on the side of the second connector (504) near the first connector (5).

5. A novel blood collection tube as described in claim 4, characterized in that: Both the third connector (503) and the second connector (504) are frustum structures, with their large cross-section ends fitting together, and the large cross-section diameter of the third connector (503) is not greater than that of the second connector (504).

6. A novel blood collection tube as described in claim 5, characterized in that: The first connector (5) is a frustum structure, with its large cross-section end facing the third connector (503).

7. A novel blood collection tube as described in any one of claims 3 to 6, characterized in that: The pressing assembly includes an annular limiting plate (601) disposed on the cap (4), a pressing head (6) slidably connected to the annular limiting plate (601), and an inclined block (603) disposed on the pressing head (6). Driving the pressing head (6) can move the inclined block (603) between the first connector (5) and the second connector (504) and fit it with the first connector (5) to achieve the snap-fit ​​between the blood collection tube body (3) and the cap (4).

8. A novel blood collection tube as described in claim 7, characterized in that: The pressing head (6) is provided with a second spring (602), which drives the pressing head (6) to slide relative to the annular limiting plate (601) to compress the second spring (602).

9. A novel blood collection tube as described in claim 8, characterized in that: A connecting rod (604) is also slidably connected to the pressing head (6). The length direction of the connecting rod (604) is perpendicular to the moving direction of the pressing head (6). Its end away from the pressing head (6) is connected to the inclined block (603). A third spring (605) is connected between the connecting rod (604) and the pressing head (6).

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