Quantitative sample collecting device

Abstract

The utility model provides a quantitative sample collecting device which comprises a collecting pipe, a conical liquid suction end is arranged at one end of the collecting pipe, a liquid suction hole communicated with the interior of the conical liquid suction end is formed in the pointed end of the conical liquid suction end, and the collecting pipe is detachably connected with a protective cover covering the conical liquid suction end. The end, away from the conical liquid suction end, of the collecting pipe is detachably connected with a connecting cover, the connecting cover communicates with an extrusion air bag in the direction away from the collecting pipe, an air inlet one-way valve communicates between the extrusion air bag and the collecting pipe, and the end, away from the collecting pipe, of the extrusion air bag communicates with an air outlet one-way valve. The air outlet one-way valve communicates with the outside of the extrusion airbag. Under the condition that auxiliary equipment is not needed, body fluid can be rapidly and quantitatively collected, the risk of spilling and leakage is avoided, and the body fluid collecting device is more convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model belongs to medical detection equipment technical field relates to a quantitative sample collection device. BACKGROUND

[0002] In the field of medical detection, it is a fundamental and critical task to assess a person's health status by collecting various body fluid samples such as blood, urine, saliva, etc. These body fluids are important indicators of physical health and have high value in clinical diagnosis. In order to ensure the accuracy of the analysis results, the collected samples must be properly stored and transported to the laboratory for further analysis in the best condition.

[0003] The traditional sample collection method mainly relies on directly pouring the body fluid into a test tube or other container for storage. Although this method seems simple and direct, there are many problems in the actual operation process. During the transfer of the body fluid from the collection device to the storage test tube, spilling may occur, which not only wastes valuable sample resources, but also may cause pollution to the surrounding environment and increase the risk of biological hazards. In order to avoid the above situation, it is usually necessary to use additional auxiliary equipment such as a funnel or a pipette, which undoubtedly increases the complexity and time cost of the operation. SUMMARY

[0004] The purpose of the utility model is to provide a quantitative sample collection device, which can quickly and quantitatively complete the collection of body fluid without the need for auxiliary equipment, and there is no risk of spilling, making it more convenient to use.

[0005] To solve the above technical problems, the utility model provides a quantitative sample collection device, which comprises a collection tube, one end of the collection tube is provided with a conical liquid suction end, the tip of the conical liquid suction end is provided with a liquid suction hole communicating with the inside thereof, the collection tube is detachably connected with a protective cover covering the conical liquid suction end, one end of the collection tube away from the conical liquid suction end is detachably connected with a connecting cover, the connecting cover is communicated with a squeeze air bag in a direction away from the collection tube, the squeeze air bag and the collection tube are communicated with an air inlet one-way valve, one end of the squeeze air bag away from the collection tube is communicated with an air outlet one-way valve, the air inlet one-way valve is communicated towards the inside of the squeeze air bag, and the air outlet one-way valve is communicated towards the outside of the squeeze air bag.

[0006] By adopting the technical scheme, when the body fluid needs to be collected, the protective cover is first removed, the conical liquid suction end is inserted into the collecting cup containing the body fluid, the squeeze air bag is pressed, the air inlet one-way valve is blocked, the air outlet one-way valve is opened, the air in the squeeze air bag is discharged from the air outlet one-way valve, low pressure is formed in the squeeze air bag, after the hand is released, the internal low pressure makes the air inlet one-way valve open, the air outlet one-way valve is blocked, the air in the collecting tube is sucked into the squeeze air bag, low pressure is formed in the collecting tube, the body fluid is sucked into the collecting tube through the liquid suction hole of the conical liquid suction end, after the collection is completed, the protective cover is covered, when the body fluid needs to be tested, the connecting cover is removed.

[0007] The utility model further sets up, the inner wall of protective cover near its open end is provided with internal thread, the outer wall of collecting tube near the conical liquid suction end is provided with the external thread of protective cover screw connection.

[0008] The utility model further sets up, the inner wall of protective cover near its open end is provided with internal thread, the outer wall of collecting tube near the conical liquid suction end is provided with the external thread of protective cover screw connection.

[0009] The utility model further sets up, the inner wall of protective cover near its open end is provided with internal thread, the outer wall of collecting tube near the conical liquid suction end is provided with the external thread of protective cover screw connection.

[0010] The utility model further sets up, the inner wall of protective cover near its open end is provided with internal thread, the outer wall of collecting tube near the conical liquid suction end is provided with the external thread of protective cover screw connection.

[0011] The utility model further sets up, the inner wall of protective cover near its open end is provided with internal thread, the outer wall of collecting tube near the conical liquid suction end is provided with the external thread of protective cover screw connection.

[0012] The utility model further sets up, the inner wall of protective cover near its open end is provided with internal thread, the outer wall of collecting tube near the conical liquid suction end is provided with the external thread of protective cover screw connection.

[0013] The utility model further sets up, the inner wall of protective cover near its open end is provided with internal thread, the outer wall of collecting tube near the conical liquid suction end is provided with the external thread of protective cover screw connection.

[0014] Compared with the prior art, the utility model discloses a negative pressure suction mode is used to suck the body fluid into the collecting tube and store, does not need to pour in the process, also does not need to use auxiliary equipment, and the process will not cause the risk of spilling, convenient and fast operation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the overall structure schematic diagram of the utility model;

[0016] Figure 2 is the explosion drawing of the utility model;

[0017] Figure 3 is the partial sectional view for showing the plug inside the protective cover;

[0018] Figure 4 is the partial sectional view for showing the internal structure of the air inlet one-way valve and the air outlet one-way valve.

[0019] Wherein, 1, collection pipe;2, conical liquid suction end;3, protective cover;4, plug;5, connecting cover;6, extrusion air bag;7, support edge;8, air inlet channel;9, first small ball;10, first support net;11, air inlet groove;12, air outlet channel;13, second small ball;14, second support net;15, air outlet groove. DETAILED DESCRIPTION

[0020] The utility model discloses a kind of quantitative sample collection devices, which is further described in detail below in conjunction with drawings and specific embodiments.The advantages and features of the utility model will be clearer according to the following description.It should be noted that all drawings are in a very simplified form and all use non-precise scale, only to facilitate, clearly assist the purpose of explaining the embodiment of the utility model.The same or similar reference signs in the drawings represent the same or similar parts.

[0021] Embodiment, refer to Figure 1-4 A kind of quantitative sample collection device, including collection pipe 1, the outer wall of collection pipe 1 is provided with a volume scale, one end of collection pipe 1 is provided with a conical liquid suction end 2, the tip of conical liquid suction end 2 is provided with a liquid suction hole (not shown) communicated with its interior, collection pipe 1 is detachably connected with a protective cover 3 covering conical liquid suction end 2, the inner wall of protective cover 3 close to its opening end is provided with internal thread, the outer wall of collection pipe 1 close to conical liquid suction end 2 is provided with external thread for thread connection of protective cover 3, a plug 4 matched with the liquid suction hole is arranged in protective cover 3, to prevent the leakage of collected body fluid from the liquid suction hole.

[0022] The end of collection pipe 1 away from conical liquid suction end 2 is detachably connected with a connecting cover 5, the inner wall of connecting cover 5 close to its opening end is provided with internal thread, the outer wall of collection pipe 1 away from conical liquid suction end 2 is provided with external thread for thread connection of connecting cover 5, an extrusion air bag 6 is connected to the direction away from collection pipe 1, and the outer wall of connecting cover 5 is provided with two support edges 7 connected to the left and right sides of extrusion air bag 6 respectively, so that extrusion air bag 6 is more stable.

[0023] The inflow one-way valve is communicated between the squeeze air bag 6 and the collecting tube 1, and comprises an inflow channel 8 communicated with the squeeze air bag 6 and the connecting cover 5, a first ball 9 movably arranged in the inflow channel 8, a first supporting net 10 in cross shape arranged at both ends of the inflow channel 8, and an inflow groove 11 formed by cutting the edge of the inflow channel 8 close to the squeeze air bag 6, which cannot be blocked by the first ball 9, so that the inflow one-way valve is communicated towards the inside of the squeeze air bag 6 when the first ball 9 is upward.

[0024] The use mode is as follows: when the body fluid needs to be collected, firstly, the protective cover 3 is taken off, the conical liquid suction end 2 is inserted into the collecting cup containing the body fluid, the squeeze air bag 6 is pressed, the inflow one-way valve is blocked, the outflow one-way valve is opened, the air in the squeeze air bag 6 is discharged from the outflow one-way valve, the low pressure is formed in the squeeze air bag 6, after the hand is released, the inflow one-way valve is opened due to the low pressure in the inside, the outflow one-way valve is blocked, the air in the collecting tube 1 is sucked into the squeeze air bag 6, the low pressure is formed in the collecting tube 1, the body fluid is sucked into the collecting tube 1 through the liquid suction hole of the conical liquid suction end 2, after the collection is completed, the protective cover 3 is covered, when the body fluid needs to be tested, the connecting cover 5 is taken off.

[0025] It should be further noted that all the "arranged" and similar descriptions in the present application (especially the specification) express that there is a connection relationship between two structures, but the specific connection means is not limited too much, and it is usually a conventional connection means, that is, it should be understood that the means is prior art, and does not need to be described too much. For example, "m is arranged with n", only expresses that there is n structure on m structure, and the specific connection between the two is through welding, riveting, adhesive connection or integral molding, which is within the protection scope of the present application; for example, "x is arranged with y", only expresses that y and x can rotate relative to each other, and as to whether the two are connected through a bearing or y directly penetrates x to be connected with x in rotation, or other realizable modes, which are within the protection scope of the present application.

[0026] The above description is only the description of the preferred embodiment of the present application, and is not any limitation on the scope of the present application. Any change and modification of the present application by the person skilled in the art according to the above disclosure is within the protection scope of the claims.

Claims

1. A quantitative sample collection device comprising a collection tube (1), characterized in that, One end of the collecting tube (1) is provided with a tapered liquid suction end (2), the tip of the tapered liquid suction end (2) is provided with a liquid suction hole communicating with the inside thereof, the collecting tube (1) is detachably connected with a protective cover (3) covering the tapered liquid suction end (2), one end of the collecting tube (1) away from the tapered liquid suction end (2) is detachably connected with a connecting cover (5), the connecting cover (5) is communicated with a squeeze air bag (6) away from the collecting tube (1), the squeeze air bag (6) and the collecting tube (1) are communicated with an air inlet one-way valve, one end of the squeeze air bag (6) away from the collecting tube (1) is communicated with an air outlet one-way valve, the air inlet one-way valve is communicated towards the inside of the squeeze air bag (6), and the air outlet one-way valve is communicated towards the outside of the squeeze air bag (6).

2. A quantitative sample collection device according to claim 1, wherein, The inner wall of the protective cover (3) near the opening end is provided with internal threads, and the outer wall of the collecting tube (1) near the tapered liquid suction end (2) is provided with external threads for threadedly connecting the protective cover (3).

3. A quantitative sample collection device according to either of claims 1 or 2, wherein, The protective cover (3) is internally provided with a plug (4) matched with the liquid suction hole.

4. The quantitative sample collection device of claim 1, wherein, The inner wall of the connecting cover (5) near the opening end is provided with internal threads, and the outer wall of the connecting cover (5) is provided with external threads for threadedly connecting the connecting cover (5).

5. The quantitative sample collection device of claim 1, wherein, The air inlet one-way valve comprises an air inlet channel (8) communicating the squeeze air bag (6) and the connecting cover (5), a first small ball (9) movably arranged in the air inlet channel (8), first support nets (10) arranged at both ends of the air inlet channel (8), and an air inlet groove (11) formed by chamfering the edge of the air inlet channel (8) near one end of the squeeze air bag (6) and unable to be blocked by the first small ball (9).

6. A quantitative sample collection device according to claim 1, wherein, The air outlet one-way valve comprises an air outlet channel (12) communicating the inside and outside of the squeeze air bag (6), a second small ball (13) movably arranged in the air outlet channel (12), second support nets (14) arranged at both ends of the air outlet channel (12), and an air outlet groove (15) formed by chamfering the edge of the air outlet channel (12) away from the squeeze air bag (6) and unable to be blocked by the second small ball (13).

7. The quantitative sample collection device of claim 1, wherein, The connecting cover (5) is outwardly provided with two support edges (7) respectively connected with the left and right sides of the squeeze air bag (6).

8. The quantitative sample collection device of claim 1, wherein, The outer wall of the collecting tube (1) is provided with a capacity scale.

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