Closed C13 inspection and collection test tube

Abstract

The utility model discloses a closed carbon-13 inspection collection test tube which comprises a test tube bottle body, a piston is sleeved in the test tube bottle body in a sliding manner, one end of the piston is coaxially and fixedly connected with one end of a piston pull rod, and the other end of the piston pull rod is coaxially and fixedly connected with a pressing disc; the end, away from the piston pull rod, of the test tube bottle body is sleeved with a test tube upper cap through a threaded structure, a connecting part is sleeved with the test tube upper cap, one end of the connecting part abuts against the test tube bottle body, and the other end of the connecting part is in interference connection with a connector. The end, away from the hose, of the supporting plate is fixedly connected with a fixing pipe which is fixedly connected with a silica gel ball, and an opening assembly is arranged in the silica gel ball. The whole collection process of the closed collection test tube bottle body is a closed loop, and the silica gel ball body and the supporting plate are matched, so that collected gas in the test tube bottle body cannot be mixed into environmental gas, and the effectiveness and the accuracy of specimens are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of test tubes, in particular to a closed carbon 13 test collection test tube. Background Art

[0002] The composition and level of volatile organic compounds (VOCs) in human exhaled air can reflect the metabolic status of the body, thus assisting clinical diagnosis and treatment. In the past two decades, it has been widely used in the auxiliary diagnosis, treatment and research of various diseases, such as lung cancer, asthma, liver cancer, Helicobacter pylori, etc.

[0003] Gas detection usually uses a gas collecting tube to collect and detect the gas exhaled by the person to be tested. The current practice for collecting oral gas is open-circuit collection. First, there is an inconsistency in the sampling volume, and the accuracy of the results is difficult to guarantee; second, there is a risk of leakage. After a leak occurs, it is often necessary to conduct a second or even multiple supplementary sampling to complete the task. For this reason, we propose a closed carbon-13 test collection tube to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a closed carbon-13 test collection tube to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a closed carbon-13 test collection test tube, comprising a test tube bottle body, a piston slidably sleeved in the test tube bottle body, one end of the piston coaxially fixedly connected to one end of a piston pull rod, and the other end of the piston pull rod coaxially fixedly connected to a pressing plate;

[0006] One end of the test tube bottle body away from the piston pull rod is connected to the test tube cap through a threaded structure, and a connecting part is sleeved inside the test tube cap. One end of the connecting part contacts the test tube bottle body, and the other end of the connecting part is interference connected to a connecting head. One end of the connecting head is fixedly connected to one end of the hose, and the other end of the hose is fixedly connected to a support plate. One end of the support plate away from the hose is fixedly connected to a fixing tube, and the fixing tube is fixedly connected to a silicone sphere, and an opening component is provided inside the silicone sphere.

[0007] Preferably, pressing plates are fixedly connected to both sides of the connector.

[0008] Preferably, the support plate is provided with a plurality of circular holes, and the circular holes are respectively communicated with the hose and the fixed pipe.

[0009] Preferably, the silica gel sphere is provided with a plurality of through holes.

[0010] Preferably, the expansion assembly includes a return spring, a sphere, and a support rod, one end of the support rod is fixedly connected to the support plate, the other end of the support rod is fixedly connected to the sphere, the outer wall of the sphere is fixedly connected to one end of several return springs, and the other end of the return spring is fixedly connected to the inner wall of the silicone sphere.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the entire collection process of the closed collection test tube bottle is a closed loop, and the silica gel sphere and the support plate are used to prevent the collected gas in the test tube bottle from mixing with the ambient gas, thereby greatly improving the effectiveness and accuracy of the specimen. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0014] In the figure: test tube bottle body 1, piston pull rod 2, pressing plate 3, test tube cap 4, connecting part 5, connecting head 6, pressing plate 61, hose 7, support plate 8, silicone ball 9, fixing tube 10, expansion assembly 11, return spring 111, ball 112, support rod 113, piston 12. DETAILED DESCRIPTION

[0015] 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.

[0016] Example 1

[0017] Reference Figure 1 , 2 , which is the first embodiment of the utility model, and provides a closed carbon-13 test collection test tube, including a test tube bottle body 1, a piston 12 is slidably sleeved in the test tube bottle body 1, one end of the piston 12 is coaxially fixedly connected to one end of a piston rod 2, and the other end of the piston rod 2 is coaxially fixedly connected to a pressing plate 3;

[0018] The end of the test tube body 1 away from the piston pull rod 2 is connected to the test tube cap 4 through a threaded structure, and a connecting part 5 is sleeved inside the test tube cap 4. One end of the connecting part 5 contacts the test tube body 1, and the other end of the connecting part 5 is interference connected to a connecting head 6. One end of the connecting head 6 is fixedly connected to one end of a hose 7, and the other end of the hose 7 is fixedly connected to a support plate 8. The end of the support plate 8 away from the hose 7 is fixedly connected to a fixed tube 10, and the fixed tube 10 is fixedly connected to a silicone ball 9. An opening component 11 is provided inside the silicone ball 9.

[0019] The silicone sphere 9 is put into the user's mouth, the user closes his mouth, and stretches the component 11 to make the silicone sphere 9 in a middle-open state, thereby ensuring the smooth inflow of gas and preventing the silicone sphere 9 from being squeezed and closing the gas passage. The piston rod 2 is then pulled to drive the fixed piston 12 to move. At the same time, the user exhales, and the piston 12 cooperates with the test tube bottle body 1 to extract the air in the user's mouth into the test tube bottle body 1 for storage. The test tube bottle body 1 is made of glass and has scale lines on the outer wall to facilitate the user to check the gas extraction volume. During collection, the user's mouth is also closed, and the entire collection process of the closed collection test tube bottle body 1 is a closed loop, so that the collected gas in the test tube bottle body 1 will not be mixed with the ambient gas, greatly improving the effectiveness and accuracy of the specimen.

[0020] Example 2

[0021] Reference Figure 1-2 , which is the second embodiment of the utility model, is based on the previous embodiment. Specifically, pressing plates 61 are fixedly connected to both sides of the connector 6. The setting of the pressing plates 61 facilitates the interference connection between the connector 6 and the connecting part 5, thereby increasing the force applied by the user during insertion.

[0022] Specifically, a plurality of circular holes are formed on the support plate 8 and the circular holes are respectively interconnected with the hose 7 and the fixing tube 10 . The interconnected arrangement ensures that the gas can flow smoothly into the test tube bottle body 1 .

[0023] Specifically, a plurality of through holes are provided on the silica gel sphere 9 , and the arrangement of the through holes allows the gas to smoothly enter the silica gel sphere 9 , and then finally enter the test tube bottle body 1 through the connecting hose 7 .

[0024] Specifically, the opening assembly 11 includes a return spring 111, a ball 112, and a support rod 113. One end of the support rod 113 is fixedly connected to the support plate 8, and the other end of the support rod 113 is fixedly connected to the ball 112. The outer wall of the ball 112 is fixedly connected to one end of a plurality of return springs 111, and the other end of the return springs 111 is fixedly connected to the inner wall of the silicone ball 9. The silicone ball 9 is put into the user's mouth, and the user closes his mouth. The elastic force of the return spring 111 of the opening assembly 11 makes the silicone ball 9 in a middle-open state, thereby ensuring the smooth inflow of gas and preventing the silicone ball 9 from being squeezed and closing the gas passage.

[0025] Example 3

[0026] Reference Figure 1-2 , which is the third embodiment of the utility model. This embodiment is based on the above two embodiments. When in use, the silicone ball 9 is contained in the user's mouth, and the user closes his mouth. Under the elastic force of the return spring 111 of the open component 11, the silicone ball 9 is in a middle-open state, thereby ensuring the smooth inflow of gas and avoiding the closure of the gas passage after the silicone ball 9 is squeezed. Then the piston rod 2 is pulled to drive the fixed piston 12 to move. At the same time, the user exhales, and the piston 12 cooperates with the test tube bottle body 1 to extract the air in the user's mouth into the test tube bottle body 1 for storage. The test tube bottle body 1 is made of glass and has scale lines on the outer wall to facilitate the user to check the gas extraction volume. When collecting, the user's mouth is also in a closed state. The entire collection process of the closed collection test tube bottle body 1 is a closed loop, so that the collected gas in the test tube bottle body 1 will not be mixed with the ambient gas, which greatly improves the effectiveness and accuracy of the specimen.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A closed carbon-13 test collection tube, comprising a test tube bottle (1), characterized in that: The piston (12) is slidably sleeved in the test tube bottle body (1), one end of the piston (12) is coaxially fixedly connected to one end of the piston pull rod (2), and the other end of the piston pull rod (2) is coaxially fixedly connected to the pressing plate (3); The end of the test tube bottle body (1) away from the piston pull rod (2) is sleeved with the test tube upper cap (4) through a threaded structure, and a connecting part (5) is sleeved inside the test tube upper cap (4). One end of the connecting part (5) contacts the test tube bottle body (1), and the other end of the connecting part (5) is interference-connected with a connecting head (6). One end of the connecting head (6) is fixedly connected to one end of a hose (7), and the other end of the hose (7) is fixedly connected to a support plate (8). The end of the support plate (8) away from the hose (7) is fixedly connected to a fixed tube (10), and the fixed tube (10) is fixedly connected to a silicone ball (9), and a spreading component (11) is provided inside the silicone ball (9).

2. A closed carbon-13 test collection tube according to claim 1, characterized in that: Pressing plates (61) are fixedly connected to both sides of the connecting head (6).

3. A closed carbon-13 test collection tube according to claim 1, characterized in that: The support plate (8) is provided with a plurality of circular holes, and the circular holes are respectively communicated with the hose (7) and the fixed pipe (10).

4. A closed carbon-13 test collection tube according to claim 1, characterized in that: The silica gel sphere (9) is provided with a plurality of through holes.

5. A closed carbon-13 test collection tube according to claim 1, characterized in that: The expansion assembly (11) comprises a return spring (111), a sphere (112), and a support rod (113); one end of the support rod (113) is fixedly connected to the support plate (8); the other end of the support rod (113) is fixedly connected to the sphere (112); the outer wall of the sphere (112) is fixedly connected to one end of a plurality of return springs (111); and the other end of each return spring (111) is fixedly connected to the inner wall of the silicone sphere (9).

Images