Leakage-proof blood collection tube

Abstract

The utility model discloses a leakproof blood collection tube, which relates to the technical field of medical apparatus and instruments, and comprises a tube body and a first thread arranged on the excircle surface of the upper section of the tube body, the upper end of the tube body is fixedly connected with a leakproof sheet, the upper end of the tube body is rotatably connected with a cover body, and the excircle surface of the cover body is provided with anti-skidding grains. And a second thread is arranged on the inner circle face of the cover body, the second thread is rotationally meshed with the first thread, and a ring groove is formed in the inner surface of the cover body. Compared with an existing common leakage-proof blood collection tube, the leakage-proof blood collection tube has the advantages that when the blood collection tube is used for transferring blood, the cover body can be easily rotated and screwed off through the design of the first thread, the second thread and the anti-skid threads outside the cover body, and the leakage-proof sheet can be obliquely transferred without adjusting the position of a bottle opening when the blood is transferred; blood spilling caused by poor adjustment of the position of the tube body by an operator is reduced to a greater extent, occupational exposure is avoided, and the blood can be prevented from leaking to the joint of the cover body and the outer circular surface of the tube body due to the design of a sealing gasket.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a leak-proof blood collection tube. Background Art

[0002] The principle of vacuum blood collection tubes is to pre-draw different vacuum degrees of blood collection tubes with protective caps, and use their 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 plug of the vacuum blood collection tube. Under the action of the negative pressure inside the vacuum blood collection tube, the human venous blood is drawn into the blood sample collection tube through the blood collection needle. Under one venous puncture, multi-tube collection can be achieved without leakage. During the detection process of the collected blood, it is often necessary to use a pipette gun for blood transfer. The pipette gun is a precision instrument with high calibration and maintenance costs. In addition, blood specimens from different sources need to be transferred during use. Blood contamination to the pipette gun should be avoided as much as possible during use. Therefore, when using a pipette gun for blood transfer, the blood collection tube needs to be tilted at a certain angle so that the pipette gun head can reduce the contact area with the blood when collecting blood. However, when tilting the blood collection tube, there is no corresponding protection measure for the blood collection tube mouth, and blood spillage often occurs due to poor control of speed and angle, which poses a huge safety hazard. Therefore, it is necessary to design a tilted leak-proof blood collection tube to facilitate the transfer of specimens by the pipette gun and reduce occupational exposure.

[0003] For example, an inclined leak-proof blood collection tube with application number 202020995596.4, during the process of tilting the tube body for the pipette to transfer blood, the utility model has a high fault tolerance rate due to the presence of a leak-proof sheet at the tube mouth, which reduces the probability of blood flowing out of the tube mouth due to poor control of the tilt angle and speed by the operator, thereby avoiding the loss of blood specimens and the spread of blood viruses. At the same time, the sealing ring added to the lower end of the tube mouth improves the sealing between the protective cap and the tube body, avoiding blood leakage caused by accidental falling of the blood collection tube. However, the leak-proof sheet of the device is only leak-proof on one side, and the position needs to be compared when transferring blood, which is time-consuming and laborious. In addition, the sealing ring of the device can easily allow blood to remain at the connection between the cover body and the outer circular surface of the tube body, so that blood will spill when the cover body is unscrewed.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a leak-proof blood collection tube is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a leak-proof blood collection tube to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a leak-proof blood collection tube, comprising a tube body and a first thread arranged on the outer circumferential surface of the upper section of the tube body, a leak-proof sheet being fixedly connected to the upper end of the tube body, a cover body being rotatably connected to the upper end of the tube body, and an anti-slip pattern being arranged on the outer circumferential surface of the cover body, a second thread being arranged on the inner circumferential surface of the cover body, and the second thread being rotatably engaged with the first thread, a circular groove being provided on the inner surface of the cover body, a fixing groove being provided on the periphery of the inner circumferential surface of the circular groove, and a sealing gasket being arranged inside the cover body.

[0007] Preferably, an O-shaped fixing ring is fixedly connected to the outer circumferential surface of the sealing gasket, and the O-shaped fixing ring is conveniently inserted into the fixing groove to fix the sealing gasket.

[0008] Preferably, a conical rubber is fixedly connected to the outer surface of one side of the sealing pad, and the conical rubber is designed to be conical, and the blood collection tube can be inserted through the conical rubber.

[0009] Preferably, an applicable groove is provided on the outer surface of the other side of the sealing gasket, and the applicable groove facilitates the protruding portion inside the cover body to be stuck inside the applicable groove.

[0010] Preferably, a rubber hole is provided on the upper surface of the cover body extending to the inner top, and one end of the blood draw tube can be inserted through the rubber hole.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model is provided with a tube body, a first thread, a leak-proof sheet, a cover body, a second thread, a ring groove, and a fixing groove. When the blood collection tube transfers blood, the cover body can be easily rotated and screwed off through the design of the first thread, the second thread, and the anti-slip pattern on the cover body. The O-shaped leak-proof sheet can be tilted and transferred without adjusting the position of the bottle mouth when transferring blood, which greatly reduces the risk of blood spilling due to improper adjustment of the position of the tube body by the operator, and avoids the occurrence of occupational exposure. The design of the sealing gasket can prevent blood from leaking to the connection between the cover body and the outer circular surface of the tube body;

[0013] 2. The utility model is provided with a ring groove, a sealing gasket, an O-type fixing ring, a conical rubber and an applicable groove. The O-type fixing ring on the outer cylindrical surface of the sealing gasket can be stuck in the fixing groove, which has a good fixing effect on the sealing gasket. The conical rubber can ensure that the device can ensure the sealing performance while allowing the blood attached to the top of the cover body to fall into the tube body due to gravity, thereby preventing blood from being brought out when the cover body is opened, thereby affecting the detection environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0015] Figure 2 For this utility model Figure 1A schematic diagram of the three-dimensional structure of the middle tube body 1;

[0016] Figure 3 For this utility model Figure 1 A schematic diagram of an inverted three-dimensional structure of the middle cover body 4;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the sealing gasket 7 of the utility model;

[0018] Figure 5 For this utility model Figure 4 Schematic diagram of the inverted three-dimensional structure of the middle sealing gasket 7.

[0019] In the figure: 1. tube body; 2. first thread; 3. leak-proof sheet; 4. cover body; 5. second thread; 6. ring groove; 7. sealing gasket; 8. O-ring; 9. conical rubber; 10. applicable groove; 11. rubber hole; 12. fixing groove. 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] like Figure 1-Figure 4 As shown, a leak-proof blood collection tube comprises a tube body 1 and a first thread 2 arranged on the outer circumferential surface of the upper section of the tube body 1, a leak-proof sheet 3 is fixedly connected to the upper end of the tube body 1, a cover body 4 is rotatably connected to the upper end of the tube body 1, and the outer circumferential surface of the cover body 4 is provided with anti-skid patterns, a second thread 5 is arranged on the inner circumferential surface of the cover body 4, and the second thread 5 is rotatably engaged with the first thread 2, a circular groove 6 is provided on the inner surface of the cover body 4, a fixing groove 12 is provided on the periphery of the inner circumferential surface of the circular groove 6, and a sealing gasket 7 is arranged inside the cover body 4. When the blood collection tube transfers blood, the cover body 4 can be easily rotated and unscrewed by the design of the first thread 2, the second thread 5 and the anti-skid patterns on the outer side of the cover body 4, the O-shaped leak-proof sheet 3 can be tilted and transferred without adjusting the position of the bottle mouth when transferring blood, which greatly reduces the risk of blood spilling due to improper adjustment of the position of the tube body 1 by the operator, and avoids the occurrence of occupational exposure, and the design of the sealing gasket 7 can prevent blood from leaking to the connection between the cover body 4 and the outer circumferential surface of the tube body 1.

[0022] like Figure 1 , Figure 5 As shown, the outer circumferential surface of the sealing gasket 7 is fixedly connected with an O-ring 8, and the O-ring 8 is conveniently inserted into the fixing groove 12 to fix the sealing gasket 7. The O-ring 8 on the outer circumferential surface of the sealing gasket 7 can be stuck in the fixing groove 12, which has a good fixing effect on the sealing gasket 7.

[0023] Furthermore, a conical rubber 9 is fixedly connected to the outer surface of one side of the sealing gasket 7, and the conical rubber 9 is designed to be conical, and the blood collection tube can be inserted through the conical rubber 9. The conical rubber 9 can ensure that the device can ensure the sealing while allowing the blood attached to the top of the cover body 4 to fall into the tube body 1 due to gravity, thereby preventing blood from being brought out when the cover body 4 is opened.

[0024] Furthermore, an applicable groove 10 is formed on the outer surface of the other side of the sealing gasket 7 , and the applicable groove 10 facilitates the protruding portion inside the cover body 4 to be stuck inside the applicable groove 10 .

[0025] Furthermore, a rubber hole 11 is provided on the upper surface of the cover body 4 extending to the inner top, and one end of the blood collection tube can be inserted through the rubber hole 11 to ensure the sealing of the device.

[0026] Working principle: When using the leak-proof blood collection tube, firstly, when the blood is transferred, the cover body 4 can be easily rotated and unscrewed through the design of the first thread 2, the second thread 5 and the anti-slip pattern on the outside of the cover body 4. The O-shaped leak-proof sheet 3 can be tilted and transferred without adjusting the position of the bottle mouth when transferring blood, which greatly reduces the risk of blood spilling due to improper adjustment of the position of the tube body 1 by the operator, and avoids the occurrence of occupational exposure. The design of the sealing gasket 7 can prevent blood from leaking to the connection between the cover body 4 and the outer cylindrical surface of the tube body 1. The O-shaped fixing ring 8 on the outer cylindrical surface of the sealing gasket 7 can be stuck in the fixing groove 12, which has a good fixing effect on the sealing gasket 7. The conical rubber 9 can ensure that the device can ensure the sealing while allowing the blood attached to the top of the cover body 4 to fall into the tube body 1 due to gravity, preventing blood from being brought out when the cover body 4 is opened, affecting the detection environment. This is the working principle of the leak-proof blood collection tube.

Claims

1. A leak-proof blood collection tube, comprising a tube body (1) and a first thread (2) arranged on the outer circumferential surface of the upper section of the tube body (1), the upper end of the tube body (1) being fixedly connected to a leak-proof sheet (3), the upper end of the tube body (1) being rotatably connected to a cover body (4), and the outer circumferential surface of the cover body (4) being provided with anti-slip grooves, the inner circumferential surface of the cover body (4) being provided with a second thread (5), and the second thread (5) being rotatably engaged with the first thread (2), the inner surface of the cover body (4) being provided with a ring groove (6), the inner circumferential surface of the ring groove (6) being provided with a fixing groove (12), the interior of the cover body (4) being provided with a sealing gasket (7), the outer circumferential surface of the sealing gasket (7) being fixedly connected to an O-type fixing ring (8), and the O-type fixing ring (8) being conveniently inserted into the fixing groove (12) to fix the sealing gasket (7), characterized in that: A conical rubber (9) is fixedly connected to the outer surface of one side of the sealing pad (7), and the conical rubber (9) is designed to be conical, and the blood collection tube can be inserted through the conical rubber (9).

2. The leak-proof blood collection tube according to claim 1, characterized in that: An applicable groove (10) is provided on the outer surface of the other side of the sealing gasket (7), and the applicable groove (10) facilitates the protruding portion inside the cover body (4) to be stuck inside the applicable groove (10).

3. The leak-proof blood collection tube according to claim 1, characterized in that: The upper surface of the cover body (4) extends to the inner top and is provided with a rubber hole (11), and one end of the blood draw tube can be inserted through the rubber hole (11).

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