Sample storage tube

Abstract

A sample storage tube comprises an upper tube body, an outer extending tube is arranged at the upper end of the upper tube body, a movable rod is arranged in the outer extending tube in a penetrating mode, a suction cup is arranged at the lower end of the movable rod, when the suction cup moves in the upper tube body, heparin sodium can be pumped into the upper tube body, heparin sodium can be conveniently stored through the upper tube body, and heparin sodium sampling can be conveniently carried out. The lower end of the upper pipe body is provided with a connecting column, the lower end of the connecting column is provided with a downward extending ring, a movable ring is movably arranged in the downward extending ring, the movable ring is provided with a movable pipe, the movable pipe penetrates through the connecting column, the periphery of the upper end of the movable pipe is provided with a plurality of notches, the lower end of the movable pipe is sleeved with a first spring, and the first spring is located on the upper side of the movable ring; when the movable pipe moves outwards under the action of the first spring and the notch is not arranged in the connecting column, the upper pipe body can be in a closed state, so that the reserved sample of the heparin sodium can be conveniently stored, and the heparin sodium can be prevented from being scattered in the transferring process.

Description

Technical Field

[0001] The utility model relates to the technical field of heparin sodium sampling, in particular to a sample storage tube. Background Art

[0002] During the production of heparin sodium, to ensure product quality and process control, a portion of the heparin is often scooped out using a spoon or other device. This is done to directly test whether the heparin sodium meets standards, and to retain a sample for later traceability. However, this current sampling method is prone to introducing external impurities during collection, thus affecting the quality of the heparin sodium. Furthermore, this method is prone to spillage during transfer, resulting in a reduction in the amount of sodium that can be tested, which in turn affects the quality of the test. Utility Model Content

[0003] The utility model provides a sample storage tube to solve the deficiencies of the above-mentioned prior art, and solves the problems of inconvenient sampling of heparin sodium and inconvenient storage after sampling, and has strong practicality.

[0004] In order to achieve the purpose of this utility model, the following technologies are proposed:

[0005] A sample storage tube includes an upper tube body. The upper end of the upper tube body is provided with an extension tube. A movable rod is inserted into the extension tube. The lower end of the movable rod is provided with a suction cup. When the suction cup moves in the upper tube body, sodium heparin can be drawn into the upper tube body. This makes it convenient to store sodium heparin through the upper tube body and to sample sodium heparin.

[0006] A connecting post is provided at the lower end of the upper tube body, and a lower extending ring is provided at the lower end of the connecting post. A movable ring is movably provided in the lower extending ring, and a movable tube is provided on the movable ring. The movable tube passes through the connecting post, and a plurality of notches are provided on the outer periphery of the upper end of the movable tube. A first spring is sleeved on the lower end of the movable tube, and the first spring is located on the upper side of the movable ring. When the movable tube moves outward under the action of the first spring, the notch is submerged in the connecting post, so that the upper tube body can be in a closed state, thereby facilitating the sample storage of heparin sodium and preventing the heparin sodium from spilling during the transfer process.

[0007] An inner screw ring is screwed into the lower extending ring, a lower plate is provided at the lower end of the inner screw ring, a straw is passed through the lower plate, an upper ring is provided at the upper end of the straw, a second spring is sleeved on the upper end of the straw, and the second spring is located on the lower side of the upper ring. When the straw and the movable tube are connected, sampling operation is convenient.

[0008] Furthermore, in order to improve the sealing effect between the suction cup and the upper tube body and facilitate the sampling operation, a plurality of sealing rings are provided on the outer periphery of the suction cup.

[0009] Furthermore, when retaining samples, in order to ensure the sealing effect inside the upper tube body, a connecting cap is provided at the upper end of the movable rod, and an annular groove is opened at the outer end of the connecting cap. A rotating cap is rotatably provided on the connecting cap, and the outer end of the rotating cap is clamped in the annular groove. The rotating cap is screwed on the extending tube. When retaining samples, the rotating cap can be screwed on the extending tube.

[0010] Furthermore, in order to improve the sealing effect of the upper tube body, a stop ring is provided on the outer periphery of the upper end of the connecting column, and the lower end of the upper tube body acts on the upper wall of the stop ring.

[0011] Furthermore, in order to prevent the straw from being separated from the lower plate under the action of the second spring, a retaining ring is provided on the outer periphery of the lower end of the straw.

[0012] Furthermore, when the lower end of the movable tube is closed, a screw joint is screwed into the lower extension ring, and a lower cover plate is provided at the lower end of the screw joint. The screw joint is provided to facilitate the sealing of the lower extension ring, thereby facilitating the storage of heparin sodium samples.

[0013] Furthermore, in order to improve the sealing effect, a plug post is provided at the upper end of the screw joint, and the plug post passes through the lower end of the movable tube.

[0014] The advantages of the above technical solution are:

[0015] The utility model is convenient for sampling heparin sodium and convenient for transferring after sampling, can prevent the heparin sodium from being scattered, and is convenient for storing the heparin sodium sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings.

[0017] Figure 1 A three-dimensional structural diagram of one embodiment is shown.

[0018] Figure 2 A cross-sectional view of one embodiment is shown. DETAILED DESCRIPTION

[0019] like Figure 1~Figure 2As shown, a sample storage tube comprises an upper tube body 1, the upper end of the upper tube body 1 is provided with an extending tube 10, a movable rod 30 is passed through the extending tube 10, the lower end of the movable rod 30 is provided with a suction cup 31, the outer periphery of the suction cup 31 is provided with a plurality of sealing rings, the lower end of the upper tube body 1 is provided with a connecting column 4, the upper end outer periphery of the connecting column 4 is provided with a stop ring 40, the lower end of the upper tube body 1 acts on the upper wall of the stop ring 40, the lower end of the connecting column 4 is provided with a lower extending ring 41, a movable ring 50 is movably provided in the lower extending ring 41, a movable tube 52 is provided on the movable ring 50, the movable tube 52 passes through the connecting column 4, the upper end of the movable tube 52 is provided with an upper gasket 47, the upper gasket 47 is made of soft material, a plurality of notches 53 are opened on the outer periphery of the upper end of the movable tube 52, the lower end of the movable tube 52 is sleeved with a first spring 51, and the first spring 51 is located on the upper side of the movable ring 50. An inner screw ring 42 is screwed into the lower extending ring 41, and a lower plate 43 is provided at the lower end of the inner screw ring 42. A suction tube 45 is passed through the lower plate 43, and a retaining ring 6 is provided on the outer periphery of the lower end of the suction tube 45. An upper ring 46 is provided at the upper end of the suction tube 45, and a second spring 44 is sleeved on the upper end of the suction tube 45. The second spring 44 is located on the lower side of the upper ring 46.

[0020] A connecting cap 3 is provided at the upper end of the movable rod 30 , and an annular groove is provided at the outer end of the connecting cap 3 . A rotating cap 2 is rotatably provided on the connecting cap 3 , and the outer end of the rotating cap 2 is clamped in the annular groove. The rotating cap 2 is screwed to the extension tube 10 .

[0021] When the lower end of the movable tube 52 is closed, a screw joint 60 is screwed into the lower extension ring 41 , the lower end of the screw joint 60 is provided with a lower cover plate 62 , and the upper end of the screw joint 60 is provided with an insertion column 61 , which passes through the lower end of the movable tube 52 .

[0022] When sampling sodium heparin in this embodiment, the operator screws the cleaned inner screw ring 42 into the lower extension ring 41. During the installation process, the movable ring 50 and the upper ring 46 interact with each other, thereby causing the suction tube 45 to extend downward, and the inner end of the movable tube 52 to move upward, so that the notch 53 is located in the upper tube body 1.

[0023] Then the operator pulls the suction cup 31 through the movable rod 30 to make the suction cup 31 suck the heparin sodium. During the suction process, the heparin sodium passes through the suction tube 45, the movable tube 52, and finally enters the upper tube body 1 through the notch 53.

[0024] Then, the inner screw ring 42 is removed and shaken to shake off some of the sodium heparin. During the removal of the inner screw ring, the movable tube 52 moves downward under the action of the first spring 51, and the notch 53 is located in the connecting column 4. The shaking of this part causes some of the sodium heparin in the movable tube 52 to be discharged. In addition, the sodium heparin can be squeezed by the suction cup 31, and after squeezing, the rotating cap 2 is screwed onto the extension tube 10.

[0025] The sampled sample is then transferred to the detection site. To facilitate sampling during the detection, the sample storage tube can be inverted, the connecting column 4 can be removed, and the suction cup 31 can be pulled outwards at the same time, and then sampling and detection can be carried out.

[0026] When preserving samples, the screw joint 60 can be connected to the lower extension ring 41, and the plug 61 can be passed through the lower end of the movable tube 52. During the connection process, the first spring 51 will not be compressed, thereby ensuring that the stored samples will not be contaminated.

[0027] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A sample storage tube, characterized in that: It comprises an upper tube body (1), the upper end of the upper tube body (1) is provided with an extension tube (10), a movable rod (30) is passed through the extension tube (10), and the lower end of the movable rod (30) is provided with a suction cup (31); The lower end of the upper tube body (1) is provided with a connecting column (4), the lower end of the connecting column (4) is provided with a lower extension ring (41), a movable ring (50) is movably provided in the lower extension ring (41), a movable tube (52) is provided on the movable ring (50), the movable tube (52) is passed through the connecting column (4), a plurality of notches (53) are provided on the outer periphery of the upper end of the movable tube (52), a first spring (51) is sleeved on the lower end of the movable tube (52), and the first spring (51) is located on the upper side of the movable ring (50); An inner screw ring (42) is screwed into the lower extension ring (41), a lower plate (43) is provided at the lower end of the inner screw ring (42), a straw (45) is passed through the lower plate (43), an upper ring (46) is provided at the upper end of the straw (45), a second spring (44) is sleeved on the upper end of the straw (45), and the second spring (44) is located at the lower side of the upper ring (46).

2. The sample storage tube according to claim 1, characterized in that: A plurality of sealing rings are provided on the outer periphery of the suction cup (31).

3. The sample storage tube according to claim 1, characterized in that: The upper end of the movable rod (30) is provided with a connecting cap (3), the outer end of the connecting cap (3) is provided with an annular groove, a rotating cap (2) is rotatably provided on the connecting cap (3), the outer end of the rotating cap (2) is clamped in the annular groove, and the rotating cap (2) is screwed onto the extension tube (10).

4. The sample storage tube according to claim 1, characterized in that: A stop ring (40) is provided on the outer periphery of the upper end of the connecting column (4), and the lower end of the upper tube body (1) acts on the upper wall of the stop ring (40).

5. The sample storage tube according to claim 1, characterized in that: A retaining ring (6) is provided on the outer periphery of the lower end of the suction pipe (45).

6. The sample storage tube according to claim 1, characterized in that: When the lower end of the movable tube (52) is closed, a screw joint (60) is screwed into the lower extension ring (41), and a lower cover plate (62) is provided at the lower end of the screw joint (60).

7. The sample storage tube according to claim 6, characterized in that: The upper end of the screw joint (60) is provided with an insertion post (61), and the insertion post (61) is inserted into the lower end of the movable tube (52).

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