Blood sampling testing equipment

Abstract

A blood sampling testing device is provided. [Solution] The blood test stick comprises a test stick body, a fingertip blood collection needle (2), and a liquid reservoir protective cap. The fingertip blood collection needle is attached to the grip end of the test stick body, and the liquid reservoir protective cap is attached to the test end of the test stick body, with a buffer solution stored in the liquid reservoir protective cap. By integrating the blood collection needle into the grip end of the blood test stick, both ends of the blood test stick can be used to puncture the user's skin and collect blood, simplifying the complexity of user operation. In addition, a mounting groove is opened at the grip end of the test stick body, and a ribbed structure is provided within the mounting groove. The fingertip blood collection needle is connected to the mounting groove with an interference fit, maintaining a secure connection of the blood collection needle body to the housing when the user pulls out the blood collection cap.

Description

[Technical Field]

[0001] The present invention belongs to the technical field of blood testing, and more particularly to a blood sampling testing device. [Background technology]

[0002] Self-administered blood testing has broad application potential in chronic disease management and home health monitoring. Currently, most commercially available blood testing products use a separate design, meaning the blood collection device and testing device are separate. To test, users must first collect a sample using a blood collection needle or blood collection pen, then transfer the blood sample to a reagent strip or test card for testing. Some test items may require additional sample pretreatment steps, such as dilution, buffer addition, or other pretreatment operations. Such processes typically involve the sequential operation of two or more independent components, requiring users to repeatedly switch between tools and complete multiple steps. This not only increases operational complexity and learning costs, but also increases the risk of cross-contamination due to operational irregularities, incomplete sample transfer, or delayed testing. Summary of the Invention [Problem to be solved by the invention]

[0003] To summarize, existing blood testing devices commonly have defects such as complicated operating procedures, separation of blood collection and testing steps, low testing efficiency, risks in the sample transfer process, and lack of user comfort. Therefore, it is necessary to design an integrated blood sampling and testing device that is more integrated in structure and function, simplifying the operating flow, reducing the difficulty of use, and improving the convenience and safety of testing. [Means for solving the problem]

[0004] The present invention aims to provide a blood sampling testing device.

[0005] The blood sampling test device of the present invention comprises a test stick body, a fingertip blood collection needle, and a liquid reservoir protective cap, the fingertip blood collection needle being attached to the grip end of the test stick body, the liquid reservoir protective cap being attached to the testing end of the test stick body, and the liquid reservoir protective cap storing a buffer solution.

[0006] Preferably, the fingertip blood collection needle comprises a blood collection needle body and a blood collection cap, the blood collection needle body being fixed to the test stick body, and the blood collection cap being attached to cover the collection end of the blood collection needle body.

[0007] Preferably, a mounting groove is formed at the grip end of the test stick body, and a rib structure is provided on the inner wall of the mounting groove, and the blood collection needle body is inserted into the mounting groove to form an interference fit with the rib structure.

[0008] Preferably, the collection end of the blood collection needle body is provided with a needle tip structure and an expandable protective structure, and the expandable protective structure surrounds the outside of the needle tip structure.

[0009] Preferably, the test stick body comprises a housing, a test reagent strip, and a blood collection block, the test reagent strip is installed inside the housing, a sample inlet is provided at the testing end of the housing, and the blood collection block is attached to the sample inlet and contacts the sample inlet area of ​​the test reagent strip.

[0010] Preferably, the liquid storage protective cap comprises a protective cap body and a sealing film, and a cap opening and an inspection opening are provided at both ends of the protective cap body, and the internal cavity of the protective cap body is partitioned by a partition plate into a cap cavity communicating with the cap opening and a liquid storage cavity communicating with the inspection opening, which are independent of each other, and a buffer solution is stored in the liquid storage cavity, and a sealing film is provided at the inspection opening.

[0011] Preferably, the cap opening and the test opening can both form an insertion structure with the test end of the test stick body, and when the test end of the test stick body is inserted into the test opening, the test end of the test stick body breaks through the sealing film, bringing the blood collection block into contact with the buffer solution.

[0012] Preferably, the liquid storage protective cap further comprises an end cap, both ends of which are open and fitted to the outside of the inspection opening of the protective cap body, with a sealing ring provided between the inner surface of the end cap and the outer surface of the protective cap body.

[0013] Preferably, the housing has a result determination window aligned with the result determination area of ​​the test reagent strip, and a transparent protective sheet is provided on the result determination window.

[0014] Preferably, the housing includes an upper rod body and a lower rod body that are inserted and fixed to each other, the result determination window has a through-groove structure opened in the upper rod body, and the protective sheet is fixed to the inner surface of the upper rod body and completely covers the result determination window. [Effects of the Invention]

[0015] The present invention has the following beneficial effects: 1. This invention integrates a blood collection needle into the handle of the blood test stick, allowing both ends of the blood test stick to be used to puncture the user's skin and collect blood, thereby simplifying the complexity of user operation and promoting user autonomy in blood testing. 2. This device provides an attachment groove at the grip end of the test stick body, and provides a ribbed structure in the attachment groove, so that the fingertip blood collection needle fits tightly into the attachment groove, maintaining a secure connection of the blood collection needle body to the housing when the user pulls out the blood collection cap. 3. This device embeds the fingertip blood collection needle into the housing and uses a spring-loaded blood collection needle structure, which prevents the user from seeing the needle tip structure during use and provides a more comfortable operating feel. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 2 is an exploded view of an embodiment of the present invention. [Figure 2] 1 is a perspective view of an embodiment of the present invention during storage and transportation; [Figure 3] 1 is a cross-sectional view of an embodiment of the present invention during storage and transportation. [Figure 4] 2 is a schematic diagram of the internal structure of a liquid storage protective cap according to an embodiment of the present invention; [Figure 5] 1 is a three-dimensional view of an inspection process according to an embodiment of the present invention; [Figure 6] 4A to 4C are cross-sectional views of an embodiment of the present invention in an inspection process. DETAILED DESCRIPTION OF THE INVENTION

[0017] The present invention will now be further described with reference to the accompanying drawings.

[0018] [Embodiment] As shown in Figures 1 and 2, the blood sampling test device comprises a test stick body, a fingertip blood collection needle 2, and a liquid reservoir protective cap. The test stick body comprises a housing, a protective sheet 4 fitted within the housing, a test reagent strip 5, and a blood collection block 6. The opposite ends of the housing are a testing end and a gripping end, respectively. The fingertip blood collection needle 2 is attached to the gripping end of the housing and is used to puncture the user's skin to collect blood. The liquid reservoir protective cap is attached to the testing end of the housing and is used to protect the blood collection block 6 during transportation and to supply a buffer solution during testing.

[0019] The internal cavity of the housing is divided into two independent sections: one section is used to mount the blood collection block 6 and test reagent strip 5, and the other section is used to mount the fingertip blood collection needle 2.

[0020] As shown in Figures 1, 2 and 3, the housing includes an upper rod 1 and a lower rod 3, which are inserted and fixed to each other. The upper rod 1 and the lower rod 3 together form a test chamber. A test reagent strip 5 is fixed within the test cavity. The upper rod 1 has a result determination window aligned with the result determination area of ​​the test reagent strip 5, and the protective sheet 4 is made of a transparent material and protects the result determination window.

[0021] The housing has a sample inlet at the testing end. The housing has a non-slip structure on one or both sides of the grip end. The non-slip structure includes a plurality of closely spaced protrusions. The inner end of the blood collection block 6 is embedded and fixed in the sample inlet of the housing, and the outer end is exposed to the outside, making it easy to draw a blood sample. The blood collection block 6 is made of polyester fiber.

[0022] The fingertip blood collection needle 2 comprises a blood collection needle body 2-1 and a blood collection cap 2-2. An attachment groove is opened at the grip end of the housing. The blood collection needle body 2-1 is embedded and fixed in a mounting tank. One or more rib structures are provided on the inner wall of the mounting groove. A tight fit is formed between the outer wall of the blood collection needle body 2-1 and the rib structure on the inner wall of the mounting groove, thereby ensuring the connection and fastening between the blood collection needle body 2-1 and the mounting groove.

[0023] In some embodiments, the rib structure is dot-shaped. A plurality of dot-shaped rib structures are alternately arranged on the inner wall of the mounting groove to form a multi-stage, offset interference fit with the blood collection needle body 2-1.

[0024] This structure grips the blood collection needle in a pass-through manner and places the blood collection needle completely within the rod body except for the needle cap, ensuring product integrity while providing maximum clamping force for the blood collection needle, providing users with more comprehensive safety and reliability, and ensuring that the blood collection needle remains stable and does not fall off during user operation.

[0025] In some other embodiments, the rib structure may be annular and surround the inner wall of the mounting groove, or may be elongated and extend along the depth direction of the mounting groove.

[0026] When using the product, the user needs to rotate the cap of the blood collection needle to remove the cap. The rib structure can offset the outward pulling force of the rod body acting on the blood collection needle during this operation, realizing the complete integration of the blood collection needle into the blood sampling test device without adding complex designs such as adhesives or buckles.

[0027] The collection end of the blood collection needle body 2-1 is exposed outside the opening of the mounting groove. The blood collection cap 2-2 is attached by covering the collection end of the blood collection needle body 2-1. The collection end of the blood collection needle body 2-1 is provided with a needle tip structure and an expandable protective structure. The expandable protective structure surrounds the outside of the needle tip structure. When pressed axially, the expandable protective structure contracts inward, exposing the needle tip structure.

[0028] In the blood collection step, first, the blood collection cap 2-2 is removed, and then the blood collection end of the blood collection needle body 2-1 is brought into contact with the target blood collection position and pressed so that the needle tip of the blood collection end of the blood collection needle body 2-1 pierces the skin.

[0029] As shown in Figure 4, the liquid storage protective cap is attached to the inspection end of the housing and comprises a protective cap body 7, a sealing film 8, a sealing ring 9, and an end cap 10. Both ends of the protective cap body 7 are open, forming a cap opening and an inspection opening, respectively. A partition plate is provided in the center of the internal cavity of the protective cap body 7. This partition plate divides the internal cavity of the protective cap body 7 into a cap cavity 7-1 and a liquid storage cavity 7-2, which are independent from each other. The cap cavity 7-1 is in communication with the cap opening, and the liquid storage cavity 7-2 is in communication with the inspection opening.

[0030] The sealing film 8 is provided at the inspection opening of the protective cap body 7 and seals the liquid storage cavity 7-2 from the external environment. A buffer solution is stored in the liquid storage cavity 7-2. In some embodiments, the sealing film 8 is made of aluminum foil.

[0031] Both ends of the end cap 10 have an open structure and are fitted and fixed to the outside of the test opening of the protective cap body 7. The end cap 10 is detachably connected to the protective cap body 7. The end cap 10 protects the sealing film 8, preventing direct exposure of the sealing film 8 and preventing damage to the sealing film 8 due to collisions during transportation and storage of the blood sampling test device. A sealing ring 9 is provided between the inner wall of the end cap 10 and the outer wall of the protective cap body 7.

[0032] As shown in Figures 2 and 3, during storage and transportation, the testing end of the housing is inserted into the cap opening of the protective cap body 7 to form a detachable connection by a snap structure.

[0033] 5 and 6, in the testing process, the testing end of the housing is inserted into the testing opening of the protective cap body 7, forming a detachable connection by a snap structure. Then, the testing end of the housing breaks through the sealing film 8, allowing the blood collection block 6 to enter the liquid storage cavity 7-2 and absorb the buffer solution.

[0034] In some embodiments, the result determination window of the upper rod 1 has a through-groove structure. The protective sheet 4 is fixed to corresponding plug structures on the inner wall of the upper rod 1 by socket structures at its four corners. The protective sheet 4 completely covers the result determination window, thereby preventing contamination of the result determination area of ​​the test reagent strip 5.

[0035] In some other embodiments, the fingertip blood collection needle 2 may be attached to the housing using adhesive, ultrasonic melt welding, snap fastening, or other viable existing fastening methods.

[0036] In this embodiment, the blood collection needle, blood collection and absorption rod, test pretreatment solution, and reagent strip are completely integrated into one device, and the most basic reagent kit is expanded as a prototype. While ensuring functionality, the blood collection needle and other components are integrated without adding new parts to achieve an integrated product structure, which allows for low upfront payment, simplifies user operation procedures, improves testing efficiency, and improves user comfort.

[0037] In some embodiments, the blood sampling test device is installed in the following order: 1. A protective sheet 4 is attached to the inner wall of the upper rod body 1 in advance. 2. Insert the test reagent strip 5 and fingertip blood collection needle 2 into the corresponding restricting structures in the lower rod 3. Insert the blood collection block 6 into the corresponding restricting structures at the test end of the upper rod 1. Then, combine the upper rod 1 and lower rod 3 to obtain the test rod body. 3. The seal ring 9 is fitted into the seal groove on the outside of the protective cap body 7. 4. After filling the inspection opening of the protective cap body 7 with the buffer solution, the sealing film 8 is welded and fixed to the inspection opening of the protective cap body 7. 5. The end cap 10 is inserted and fixed to the outside of the inspection opening of the protective cap body 7, thereby obtaining a liquid storage protective cap. 6. Insert the test end of the test stick body into the cap opening of the protective cap body 7 to return the blood sampling test device to its factory-shipped state (i.e., storage state).

[0038] The operating principle of this embodiment is as follows. 1. Remove the liquid storage protective cap and place it on a flat table so that the inspection opening of the protective cap body 7 inside the liquid storage protective cap faces upward. 2. The blood collection cap 2-2 is turned and unscrewed with a slight force to expose the collection end of the blood collection needle body 2-1. 3. Press the collection end of the blood collection needle body 2-1 against the user's finger to collect blood. When a spring sound is heard, this indicates that the skin has been punctured. Move the blood collection needle body 2-1, invert the test stick body, and use the blood collection block 6 to contact the blood drop formed on the finger. 4. Observe the blood collection block 6, and stop blood collection when the blood collection block 6 has absorbed blood and become saturated. 5. Next, insert the test stick body containing the collected blood into the upward-facing test opening of the protective cap body 7 with the test end facing downward, and begin to unfold. 6. After waiting the specified time, observe the deployment results. [Explanation of symbols]

[0039] 1 upper rod body, 2 Fingertip blood collection needle, 2-1 Blood collection needle body, 2-2 Blood collection cap, 3 Lower rod body, 4 protective sheets, 5 test reagent strips, 6 blood collection blocks, 7 Protective cap body, 7-1 Cap cavity, 7-2 Liquid storage cavity, 8 sealing film, 9 seal rings, 10 End Cap

Claims

1. A blood sampling and testing device comprising a test stick body, a fingertip blood collection needle (2), and a liquid storage and protective cap, wherein the fingertip blood collection needle (2) is attached to the grip end of the test stick body, the liquid storage and protective cap is attached to the testing end of the test stick body, and a buffer solution is stored in the liquid storage and protective cap.

2. 2. The blood sampling test device according to claim 1, wherein the fingertip blood collection needle (2) comprises a blood collection needle body (2-1) and a blood collection cap (2-2), the blood collection needle body (2-1) is fixed to the test rod body, and the blood collection cap (2-2) is attached by covering the collection end of the blood collection needle body (2-1).

3. 3. The blood sampling test device according to claim 2, wherein an attachment groove is formed at the grip end of the test stick body, and a rib structure is provided on the inner wall of the attachment groove, and the blood collection needle body (2-1) is inserted into the attachment groove to form an interference fit with the rib structure.

4. The blood sampling test device according to claim 2, characterized in that the collection end of the blood collection needle body (2-1) is provided with a needle tip structure and an expandable protective structure, and the expandable protective structure surrounds the outside of the needle tip structure.

5. 2. The blood sampling test device of claim 1, wherein the test stick body comprises a housing, a test reagent strip (5), and a blood collection block (6), the test reagent strip (5) is installed inside the housing, a sample inlet is provided at the testing end of the housing, and the blood collection block (6) is attached to the sample inlet and contacts the sample inlet area of ​​the test reagent strip (5).

6. The blood sampling test device of claim 5, wherein the liquid storage protective cap comprises a protective cap body (7) and a sealing film (8), and a cap opening and a test opening are provided at both ends of the protective cap body (7), and the internal cavity of the protective cap body (7) is partitioned by a partition plate into a cap cavity (7-1) communicating with the cap opening and a liquid storage cavity (7-2) communicating with the test opening, which are independent of each other, a buffer solution is stored in the liquid storage cavity (7-2), and a sealing film (8) is provided at the test opening.

7. 7. The blood sampling test device of claim 6, wherein the cap opening and the test opening are both capable of forming an insertion structure with the test end of the test stick body, and when the test end of the test stick body is inserted into the test opening, the test end of the test stick body breaks through the sealing film (8), and the blood collection block (6) comes into contact with the buffer solution.

8. 7. The blood sampling test device according to claim 6, wherein the liquid storage protective cap further comprises an end cap (10), both ends of which are open and fitted to the outside of the test opening of the protective cap body (7), and a sealing ring (9) is provided between the inner surface of the end cap (10) and the outer surface of the protective cap body (7).

9. 6. The blood sampling test device according to claim 5, wherein the housing has a result determination window aligned with the result determination area of ​​the test reagent strip (5), and the result determination window is provided with a transparent protective sheet (4).

10. 10. The blood sampling test device of claim 9, wherein the housing includes an upper rod body (1) and a lower rod body (3) that are inserted and fixed to each other, the result determination window has a through-groove structure opened in the upper rod body (1), and the protective sheet (4) is fixed to the inner surface of the upper rod body (1) and completely covers the result determination window.

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