Integrated blood sampling device

Abstract

The utility model provides an integrated blood sampling device. The integrated blood sampling device comprises a blood sampling tube, two ends of the cavity are opened, and the upper end opening allows the blood collection tube to enter the cavity; the first sealing piece is used for sealing the upper end opening; the second sealing piece seals the upper end opening of the blood collection tube or seals the upper end opening of the cavity when the blood collection tube does not completely enter the cavity; and the third sealing piece is used for sealing the lower end opening of the cavity. The multifunctional desk lamp has the advantages of multiple functions and the like.

Description

Technical Field

[0001] The utility model relates to blood sampling, in particular to an integrated blood sampling device. Background Art

[0002] Conventional peripheral blood sampling and collection are mainly achieved by scraping method or capillary action aspiration method.

[0003] In the scraping method, the blood sample scraping part at the upper end of the blood collection tube body is used to scrape the blood into the tube body, and the blood is shaken into the bottom of the tube body by shaking. The above steps are repeated multiple times until the blood sample collection is completed.

[0004] In the capillary action aspiration method, blood is mainly transported by siphon and capillary action. This type of blood collection device usually consists of two parts: capillary glass tube collection and conventional blood collection tube collection. After the blood collection needle pierces the blood collection site and wipes the first drop of blood, the capillary glass tube is inserted into the extruded blood droplet. Due to the siphon principle, blood will flow along the glass tube wall from the near blood sample section of the capillary glass tube. The inhaled blood sample forms a thin liquid film on the inner wall of the collection device, and this liquid film will adhere to the blood in the capillary glass tube, enabling the blood sample to be continuously attracted and transported. Subsequently, the blood sample in the capillary glass tube is transferred to the blood collection tube to complete the blood sample collection. The disadvantages of this method are as follows:

[0005] Accurate quantification cannot be achieved during the collection process. In the case of accurate quantification for sample addition, a pipette gun needs to be used for sample addition. This requires higher requirements for blood sample collectors in actual application scenarios, and the operation is cumbersome, and the equipment required also increases accordingly. Summary of the Invention

[0006] To solve the deficiencies in the above-mentioned prior art solutions, the utility model provides an integrated blood sampling device.

[0007] The purpose of the utility model is achieved through the following technical solutions:

[0008] An integrated blood sampling device includes a blood collection tube; the integrated blood sampling device further includes:

[0009] A cavity with both ends open, and the upper end opening allows the blood collection tube to enter the interior of the cavity;

[0010] A first sealing member for sealing the upper end opening;

[0011] A second sealing member that seals the upper end opening of the blood collection tube or the upper end opening of the cavity when the blood collection tube has not fully entered the cavity;

[0012] A third sealing member for plugging the lower end opening of the cavity.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. Multifunctional;

[0015] The scale lines on the blood collection tube enable quantification of the blood sample;

[0016] The setting of the cavity and the enclosure enables storage of the anticoagulant and temporary storage of the blood sample;

[0017] 2. Simple structure;

[0018] Integrating multiple functions on the blood collection tube and the cavity, the structure is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Referring to the accompanying drawings, the disclosure of the present utility model will become more readily understood. It is readily understood by those skilled in the art that these drawings are merely for illustrative purposes of the technical solutions of the present utility model and are not intended to limit the scope of protection of the present utility model. In the figures:

[0020] Figure 1 is a structural schematic diagram of the integrated blood collection device according to the present utility model;

[0021] Figure 2 is a state schematic diagram of the integrated blood collection device according to the present utility model;

[0022] Figure 3 is a state schematic diagram of the integrated blood collection device according to the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Figures 1 - 3 The following description and illustrations describe alternative specific embodiments of the present utility model to teach those skilled in the art how to implement and reproduce the present utility model. To teach the technical solutions of the present utility model, some conventional aspects have been simplified or omitted. Those skilled in the art should understand that variations or substitutions derived from these specific embodiments will fall within the scope of the present utility model. Those skilled in the art should understand that the following features can be combined in various ways to form multiple variations of the present utility model. Thus, the present utility model is not limited to the following alternative specific embodiments, but is defined only by the claims and their equivalents.

[0024] Embodiment 1

[0025] As Figure 1 shown, an integrated blood collection device according to an embodiment of the present utility model includes:

[0026] A blood collection tube 2, both ends of the blood collection tube 2 are open, and the lower opening 4 is in a pointed shape;

[0027] Cavity 1, with both ends of the cavity 1 open. The upper opening allows the blood collection tube 2 to enter the interior of the cavity 1;

[0028] A first sealing member 7, which is used to seal the upper opening;

[0029] A second sealing member 3, which seals the upper opening of the blood collection tube 2 when the blood collection tube 2 has not fully entered the cavity, or seals the upper opening of the cavity 1;

[0030] A third sealing member 5, which is used to block the lower opening 6 of the cavity 1 so that the anticoagulant is sealed within the cavity 1.

[0031] To facilitate the entry of the blood collection tube 2 into the cavity 1, further, the first sealing member 7 is a film that allows the lower opening 4 of the blood collection tube 2 to pierce through.

[0032] To achieve the seal between the blood collection tube 2 and the cavity 1, further, the blood collection tube 2 has a section with an increasing inner diameter 21 and a section with a constant inner diameter 22, and the outer diameter of the section with a constant inner diameter 22 is equal to the inner diameter of the cavity 1.

[0033] To allow a part of the blood collection tube 2 to enter the cavity 1, further, the outer wall of the upper opening of the blood collection tube 2 has a radially outward extending portion 23, the outer diameter of the radially outward extending portion 23 is greater than the inner diameter of the cavity 1, and the second sealing member 3 seals the upper opening of the blood collection tube 2.

[0034] To achieve the quantitative function, further, the inner wall or the outer wall of the blood collection tube 2 has graduation lines.

[0035] To seal the blood collection tube 2, further, the second sealing member 3 is a cap. The inner wall of the upper opening of the blood collection tube 2 has an annular protrusion 24, and the outer wall of the first part 32 of the cap has an annular groove 33 that allows the annular protrusion 24 to snap into.

[0036] To seal the cavity 1, further, the cap also has a second part 31, the outer diameter of the second part 31 is greater than the outer diameter of the first part 32, and the upper opening of the cavity 1 allows the second part 31 to snap into.

[0037] To facilitate access, further, the lower part of the cavity 1 is snapped into the upper opening of the blood collection tube 2.

[0038] Embodiment 2

[0039] An application example of the integrated blood collection device according to Embodiment 1 of the present utility model.

[0040] In this application example, as Figure 1As shown, the blood collection tube 2 is made of flexible plastic, including a section 21 with an increasing inner diameter and a section 22 with a constant inner diameter. The lower end opening 4 is a tip, and the outer wall of the upper end opening has a radially outward extending portion 23, and the inner wall has a first annular protrusion 24. The outer wall of the section 22 with a constant inner diameter below the radially extending portion 23 has a second annular protrusion 25. The cavity 1 includes a section 11 with a smaller outer diameter and a section 12 with a larger outer diameter. The lower end of the section 11 with a smaller outer diameter is connected to the tip outlet 6, and the inner diameter of the section 12 with a larger outer diameter gradually increases. The inner wall of the section 12 with a larger outer diameter has a first annular groove 13 that allows the second annular protrusion 25 to snap in, and the outer wall of the section 11 with a smaller outer diameter has a second annular groove 14 that allows the first annular protrusion 24 to snap in, so that the section 11 with a smaller outer diameter is snapped into the section 22 with a constant inner diameter of the blood collection tube 2.

[0041] The first seal 7 is made of a film and is used to seal the upper end opening of the section 12 with a larger outer diameter. The third seal 5 is a plug that seals the tip outlet 6.

[0042] The second seal 3 is a cap, including a first part 32 and a second part 31. The outer diameter of the first part 32 is smaller than that of the second part 31, and the outer wall of the first part 32 has a third annular groove 33 that allows the first annular protrusion 24 to snap in. The cap is connected to the outer wall of the upper end of the section 12 with a larger outer diameter through a connecting portion.

[0043] The working mode of the integrated blood collection device in this embodiment is as follows:

[0044] When collecting a blood sample, place the lower end opening 4 of the blood collection tube 2 in the blood sample. Through siphon and capillary action, the blood sample can be sucked and transported. When the blood sample reaches the 180ul quantitative scale line 8 for coagulation, stop sampling.

[0045] As Figure 2 shown, the cavity 1 and the blood collection tube 2 are separated, that is, the first annular protrusion 24 disengages from the second annular groove 14, and the lower end opening 4 pierces the first seal 7 and enters the cavity 1. An anticoagulant is sealed in the cavity 1 and is under negative pressure, so that the blood sample in the blood collection tube 2 is discharged from the lower buckle 4 and transferred into the cavity 1 to be combined with the anticoagulant.

[0046] As Figure 3 shown, the second annular protrusion 25 on the outer wall of the section 22 with a constant inner diameter snaps into the first annular groove 13 on the inner wall of the cavity 1, that is, snaps into the section 12 with a larger outer diameter (to achieve the seal between the blood collection tube 2 and the cavity 1). The radially extending portion 23 is blocked by the upper end of the section 12 with a larger outer diameter. The first part 32 is inserted into the upper end opening of the blood collection tube 2, and the first annular protrusion 24 snaps into the third annular groove 33 (to achieve the sealed isolation between the inside and outside of the blood collection tube 2). The blood sample is sealed between the cavity 1 and the blood collection tube 2.

[0047] When a blood sample needs to be taken, unplug the plug 5, and through the outer wall of the cavity 1, the blood sample flows out through the tip outlet 6.

[0048] Embodiment 3

[0049] According to the application example of the integrated blood collection device in Embodiment 1 of the present utility model, different from Embodiment 2:

[0050] The radially extending portion 23 is no longer provided. The blood collection tube 2 only enters the cavity 1 when transferring its quantitative blood sample. After the blood sample transfer is completed, the blood collection tube 2 is removed, that is, the blood collection tube 2 is no longer in the cavity 1.

[0051] When closing the cavity 1, the second part 32 is snapped into the upper opening of the cavity 1 to achieve sealing.

Claims

1. An integrated blood collection device, comprising a blood collection tube; characterized in that: The integrated blood sampling device further comprises: A cavity, wherein both ends of the cavity are open, and the upper end opening allows the blood collection tube to enter the cavity; a first closing member, the first closing member being used to close the upper end opening; a second sealing member, the second sealing member sealing the upper end opening of the blood sampling tube when the blood sampling tube has not completely entered the cavity, or sealing the upper end opening of the cavity; A third closing piece is used to close the lower opening of the cavity.

2. The integrated blood collection device according to claim 1, characterized in that: The first sealing member is a film that allows the lower end opening of the blood collection tube to be pierced.

3. The integrated blood collection device according to claim 1, characterized in that: The blood collection tube comprises a section with an enlarged inner diameter and a section with a constant inner diameter, and the outer diameter of the section with a constant inner diameter is equal to the inner diameter of the cavity.

4. The integrated blood collection device according to claim 3, characterized in that: The outer wall of the upper opening of the blood sampling tube has an outward radial extension portion, the outer diameter of the radial extension portion is greater than the inner diameter of the cavity, and the second sealing member seals the upper opening of the blood sampling tube.

5. The integrated blood collection device according to claim 3, characterized in that: The lower end opening of the cavity is pointed.

6. The integrated blood collection device according to claim 1, characterized in that: The inner wall or the outer wall of the blood collection tube has scale lines.

7. The integrated blood collection device according to claim 1, characterized in that: The second sealing member is a cap, the inner wall of the upper opening of the blood sampling tube has an annular protrusion, and the outer wall of the first part of the cap has an annular groove allowing the annular protrusion to be inserted.

8. The integrated blood collection device according to claim 7, characterized in that: The cap further comprises a second part, the outer diameter of the second part is larger than the outer diameter of the first part, and the upper end opening of the cavity allows the second part to be inserted.

9. The integrated blood collection device according to claim 1, characterized in that: The outer side of the blood collection tube is provided with an annular protrusion, and the inner wall of the cavity is provided with an annular groove allowing the annular protrusion to be inserted.

10. The integrated blood collection device according to claim 1, characterized in that: The inner wall of the upper opening of the blood sampling tube is provided with an annular protrusion, and the outer wall of the lower part of the cavity is provided with an annular groove allowing the annular protrusion to be inserted.

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