Medical electrode patch blood sampling detection device

Abstract

The application relates to the technical field of medical electrode sheet blood sampling detection, and discloses a medical electrode sheet blood sampling detection device, which comprises a blood sampling needle, the lower end of the blood sampling needle is connected with a dredging pipe, the lower end of the dredging pipe is connected with a sealing cover, the lower end of the sealing cover is connected with a blood storage test tube, the inner lower end of the blood storage test tube is connected with a layered assembly, a blood outlet hole is arranged in the lower end of the blood storage test tube, a fixing groove two is arranged in the lower end of the blood storage test tube, and a fixing groove one is arranged in the lower end of the layered assembly. The blood storage test tube and the layered assembly are used for layering the inside of the blood storage test tube, blood is stored in the upper part of the layered assembly after blood sampling is completed, then the structure formed by the base, the layered assembly and the pushing assembly can directly guide the blood in the blood storage test tube to flow into the inside of the base, the blood does not need to be transferred and dropped again to react with the electrode sheet, and the possibility of blood exposure and pollution is reduced.

Description

Technical Field

[0001] This invention relates to the field of blood sampling and testing technology using medical electrode pads, and more specifically, to a device for blood sampling and testing using medical electrode pads. Background Technology

[0002] The process of medical personnel collecting blood samples via veins or arteries is necessary for testing or related purposes. The procedure strictly adheres to aseptic techniques, thoroughly disinfecting the skin (8-10 cm area), and ensuring fingers do not touch the puncture site after disinfection. During blood collection, the person collecting the blood must frequently wipe their hands with alcohol-soaked cotton balls or a towel soaked in 0.2% peracetic acid solution to maintain finger sterility as much as possible. If blood flow is obstructed during collection, the following causes should be investigated: ① Improper needle placement within the vein, with the needle bevel obstructed by the vein wall or valves; ② Puncture too deep or incomplete insertion of the needle bevel into the vein; ③ The blood collection catheter being squeezed, adhered, or bent; ④ Insufficient or excessive tourniquet pressure, causing superficial veins to not fill properly or deep venous return to be obstructed; ⑤ Donor anxiety leading to a donation reaction, causing venous spasm or collapse. Addressing these causes promptly is crucial to maintaining unobstructed blood flow. Carefully verify that the numbers, names, and blood types on the blood bag and tube labels match. If any label is missing, a new blood sample must be drawn from the blood bag to retest liver function and blood type. Only after the results match can the blood be sent out. Blood collection must be performed by qualified medical personnel, and disposable blood collection equipment must be destroyed after use.

[0003] For example, Chinese patent document CN202121092307.0 discloses a blood collection device for AIDS patients, which describes "a blood collection device housing and a needle body, and a protective mechanism, including a sealing piston, a piston rod fixedly connected to the sealing piston, a tension spring fixedly connected between the sealing piston and the receiving cavity, the tension spring being sleeved on the outside of the piston rod, the sealing piston being fixedly connected to the needle body, a reset tube fixedly connected in the mounting groove, a limit plate slidably connected in the reset tube, and a connecting seat rotatably connected in the mounting groove via a mounting seat, a locking pin rotatably connected to the connecting seat via a connecting plate, and a reset spring sleeved on the locking pin, the locking pin being fixedly connected to the limit plate. Through the cooperation of the sealing piston, piston rod, tension spring and needle body, the elasticity of the tension spring can drive the needle body to be pulled out of the patient's body and into the receiving cavity, reducing the possibility of infection caused by needle stick injury to the user, and making it highly safe to use." This device can solve the problems of infection caused by needle stick injury and the inconvenience of blood collection from patients.

[0004] However, current biosensor testing technologies all require manual blood collection and application to the reaction area of ​​the biosensor's electrodes. This sequence of operations greatly increases the possibility of blood contamination during the transfer process due to exposure to air. Traditional blood collection needles are straight-edged, with one end being the needle tip that pierces the skin of the person being tested, and the other end connected to a syringe through a needle hole. The drawn blood is then dripped into the testing reagent or onto the sample. This traditional method is time-consuming and labor-intensive. Therefore, a method that can directly transfer blood to the testing sample without exposure is crucial, significantly reducing contamination steps, saving manpower and resources, and increasing efficiency. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention provides a medical electrode pad blood sampling and testing device, which has the advantages of reducing the risk of blood exposure and simplifying operation.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a medical electrode pad blood sampling and testing device, comprising a blood collection needle, a drainage tube inserted at the lower end of the blood collection needle, a sealing cap inserted at the lower end of the drainage tube, a blood storage tube inserted at the lower end of the sealing cap, a layering component snapped into the lower end of the blood storage tube, a bleeding hole opened at the lower end of the blood storage tube, a second fixing groove opened at the lower end of the blood storage tube, a first fixing groove opened at the lower end of the layering component, a first fixing component fixedly connected inside the second fixing groove, a telescopic rod fixedly connected to the top end of the second fixing groove, a second fixing component slidably connected to the bottom end of the telescopic rod, a base fixedly connected to the lower end of the second fixing component, a pushing component fixedly connected to the upper center of the base, a hollow groove opened at the center of the base, and an electrode pad snapped into the hollow groove.

[0007] As a preferred embodiment of the present invention, the part of the blood storage tube that contacts the layering component is completely fitted together, and a magnetic suction device is fixedly connected to the part of the blood storage tube that contacts the layering component.

[0008] In a preferred embodiment of the present invention, the area of ​​the bleeding hole is greater than the area of ​​the lower end of the layered component, the shape of the fixing groove is the same as the shape of the pushing component, and the length of the pushing component is greater than the depth of the fixing groove.

[0009] As a preferred embodiment of the present invention, the second fixing groove is circular, and the telescopic rods are evenly distributed at equal angles inside the second fixing groove. The first fixing component is a hollow circular track on the inner wall of the second fixing groove, and the length of the first fixing component is greater than the depth of the second fixing groove.

[0010] As a preferred embodiment of the present invention, the length of the telescopic part of the telescopic rod is greater than the length of the mating part of the layered component and the blood storage tube, and the length of the spring part of the telescopic rod is greater than the length of the contracted part.

[0011] As a preferred embodiment of the present invention, the length of the second fixed component and the telescopic rod after compression is greater than the depth of the second fixed groove, and the difference is greater than the length of the layered component and the blood storage tube fitting part.

[0012] As a preferred embodiment of the present invention, the hollow groove is annular in shape and rectangular in front, the pushing component is located at the center of the hollow groove, and the rectangular portion of the hollow groove has the same shape and size as the front of the electrode sheet.

[0013] As a preferred embodiment of the present invention, the rear end of the electrode sheet is fitted with a fixed outer shell, and the rear end of the fixed outer shell is provided with a groove that fits the base minus the center portion of the hollow groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention uses a blood storage tube and a layering component to divide the inside of the blood storage tube into layers. After blood is drawn, the blood is stored in the upper part of the layering component. Then, the structure consisting of a base, layering component and pushing component can directly guide the blood inside the blood storage tube into the interior of the base. There is no need to transfer the blood again to drip and react with the electrode pads, which reduces the possibility of blood exposure and contamination.

[0015] 2. This invention connects the blood storage tube and the base through a connection structure consisting of a second fixed groove, a telescopic rod, a first fixed component, and a second fixed component. This ensures a sealed environment inside the base. During the process of squeezing the blood storage tube and the base, the blood flows from the blood storage tube to the base while its exterior remains sealed, allowing it to directly enter the hollow groove and react with the electrode plates. This also makes the connection between the blood storage tube and the base stable, and the balance between the blood storage tube and the layered components is not easily disrupted. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a side view of the structure of the present invention; Figure 3 This is a cross-sectional schematic diagram of the blood storage tube structure of the present invention; Figure 4 The structure of this invention Figure 3 Enlarged view of point A in the middle; Figure 5 This is a cross-sectional view of the lower end of the blood storage tube of the present invention; Figure 6 The structure of this invention Figure 5 Enlarged view of point B in the middle; Figure 7 This is a schematic cross-sectional view of the bottom of the blood storage tube of the present invention; Figure 8 The structure of this invention Figure 7 Enlarged diagram of point C in the middle.

[0017] In the diagram: 1. Blood collection needle; 2. Drainage tube; 3. Sealing cap; 4. Blood storage tube; 5. Base; 6. Layered assembly; 7. Bleeding hole; 8. Fixing groove one; 9. Pushing assembly; 10. Fixing groove two; 11. Telescopic rod; 12. Fixing assembly one; 13. Fixing assembly two; 14. Hollow groove; 15. Electrode plate. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figures 1 to 8 As shown, the present invention provides a medical electrode blood sampling and testing device, including a blood collection needle 1, a drainage tube 2 inserted into the lower end of the blood collection needle 1, a sealing cap 3 inserted into the lower end of the drainage tube 2, a blood storage tube 4 inserted into the lower end of the sealing cap 3, a layering component 6 snapped into the lower end of the blood storage tube 4, a bleeding hole 7 opened at the lower end of the blood storage tube 4, a fixing groove 2 10 opened at the lower end of the blood storage tube 4, a fixing groove 1 8 opened at the lower end of the layering component 6, a fixing component 1 12 fixedly connected inside the fixing groove 2 10, a telescopic rod 11 fixedly connected to the top of the fixing groove 2 10, a fixing component 2 13 slidably connected to the bottom end of the telescopic rod 11, a base 5 fixedly connected to the lower end of the fixing component 2 13, a pushing component 9 fixedly connected to the upper center of the base 5, a hollow groove 14 opened in the center of the base 5, and an electrode 15 snapped into the interior of the hollow groove 14.

[0020] The blood storage tube 4 and the layering component 6 divide the interior of the blood storage tube 4 into layers. After blood is drawn, the blood is stored in the upper part of the layering component 6. Then, the blood inside the blood storage tube 4 can be directly guided into the interior of the base 5 through the structure composed of the base 5, the layering component 6 and the pushing component 9. There is no need to transfer the blood again to drip and react with the electrode plate, which reduces the possibility of blood exposure and contamination. The fixing groove 2 10, the telescopic rod 11, the fixing component 1 12 and the fixing component 2 13 form a connection structure to connect the blood storage tube 4 and the base 5, which not only ensures the sealed environment inside the base 5, but also makes the overall operation simpler.

[0021] The part of the blood storage tube 4 that contacts the layering component 6 is completely fitted, and the part of the blood storage tube 4 that contacts the layering component 6 is fixedly connected with a magnetic suction device.

[0022] The part of the blood storage tube 4 that comes into contact with the layering component 6 fits perfectly, ensuring that the contact part between the layering component 6 and the blood storage tube 4 is sealed under normal circumstances, and there will be no blood leakage. The part of the blood storage tube 4 that comes into contact with the layering component 6 is fixedly connected with a magnetic attraction device, which increases the stability between the blood storage tube 4 and the layering component 6, and its sealed state is not easily damaged.

[0023] Among them, the area of ​​the bleeding hole 7 is greater than the area of ​​the lower end of the layered component 6, the shape of the fixing groove 8 is the same as the shape of the pushing component 9, and the length of the pushing component 9 is greater than the depth of the fixing groove 8.

[0024] The area of ​​the bleeding hole 7 is greater than the area of ​​the lower end of the layered component 6, ensuring that the layered component 6 has sufficient gap when it is pushed open by the pushing component 9, allowing the blood inside the blood storage tube 4 to flow along the bleeding hole 7 into the hollow groove 14 inside the base 5 and contact the electrode plate 15. The length of the pushing component 9 is greater than the depth of the fixed groove 8, ensuring that the pushing component 9 has sufficient length to push open the layered component 6.

[0025] Among them, the second fixing groove 10 is circular, and the telescopic rod 11 has four evenly distributed at equal angles inside the second fixing groove 10. The first fixing component 12 is a hollow circular track on the inner wall of the second fixing groove 10, and the length of the first fixing component 12 is greater than the depth of the second fixing groove 10.

[0026] The circular shape of the second fixing groove 10 ensures that the base 5 and the blood storage tube 4 are tightly and stably connected by the telescopic rod 11, the first fixing component 12 and the second fixing component 13, and ensures that the blood storage tube 4 and the base 5 are subjected to balanced forces during the contraction process.

[0027] Among them, the length of the telescopic part of the telescopic rod 11 is greater than the length of the mating part of the layered component 6 and the blood storage tube 4, and the length of the spring part of the telescopic rod 11 is greater than the length of the contracted part.

[0028] The length of the spring portion of the telescopic rod 11 is greater than the length of the contracted portion to ensure that the spring of the telescopic rod 11 can provide sufficient elastic force when the blood storage tube 4 and the base 5 are squeezed, and to ensure that the telescopic rod 11 and the fixing component 2 13 can be stably compressed.

[0029] Among them, the length of the fixed component 2 13 and the telescopic rod 11 after compression is greater than the depth of the fixed groove 2 10 and the difference is greater than the length of the part where the layered component 6 and the blood storage tube 4 are attached.

[0030] The length of the fixed component 2 13 and the telescopic rod 11 after compression is greater than the depth of the fixed groove 2 10 and the difference is greater than the length of the part where the layered component 6 and the blood storage tube 4 fit together. This ensures that when the base 5 and the blood storage tube 4 are squeezed, the telescopic rod 11 retracts and pushes the component 9 to lift the layered component 6, so that a gap appears between the layered component 6 and the blood storage tube 4 and the blood can flow down into the hollow groove 14 and the electrode plate 15 to react.

[0031] The hollow groove 14 is annular in shape with a rectangular front side. The pushing component 9 is located at the center of the hollow groove 14. The rectangular part of the hollow groove 14 has the same shape and size as the front side of the electrode sheet 15.

[0032] The hollow groove 14 is annular in shape and rectangular in front, which facilitates the insertion of the electrode 15 into the bottom for blood sample electrode reaction. The annular shape inside allows the blood inside the blood storage tube 4 to flow quickly into the hollow groove 14 and contact the electrode 15.

[0033] The electrode sheet 15 is fitted with a fixed outer shell at its rear end, and the rear end of the fixed outer shell has a groove that fits the base 5 minus the center part of the hollow groove 14.

[0034] The rear end of the fixed shell has a groove that fits the base 5 minus the center part of the hollow groove 14, which helps to fix the position of the electrode 15 in the base 5 and facilitates the blood reaction on the electrode 15.

[0035] Working principle and usage process of this invention: First, the electrode pad 15 in the device is inserted into the corresponding hollow groove 14. Then, medical staff collect blood samples using the blood collection needle 1. The blood flows into the blood storage tube 4 through the blood collection needle 1 and the drainage tube 2. At this time, by pressing the top of the sealing cap 3 and the bottom of the base 5 with a finger, the fixing component 2 13 at the upper end of the base 5 approaches the blood storage tube 4 inside the fixing groove 2 10 under pressure. The fixing component 2 13 will then be forced to squeeze the telescopic rod 11 inside the fixing groove 2 10. The upper and lower parts of the telescopic rod 11 contract, making the distance between the base 5 and the blood storage tube 4 shorter, thereby pushing the middle part of the base 5. The moving component 9 contacts the layering component 6 through the fixed groove 8 and applies an upward force to the layering component 6. Under the support force provided by the pushing component 9, the pushing component 9 can push open the layering component 6, and the magnetic attraction between the blood storage tube 4 and the layering component 6 separates, so that a gap appears between the blood storage tube 4 and the layering component 6. Then the blood stored inside the blood storage tube 4 flows into the hollow groove 14 through the gap. The blood contacts the electrode plate 15 in 14 to react, which can quickly complete the detection and avoid the possibility of blood being exposed to air and contaminated during the blood transfer process. Then, wait for the reaction to complete and observe the result to end the detection.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A medical electrode pad blood sampling and testing device, comprising a blood collection needle (1), characterized in that: The lower end of the blood collection needle (1) is connected to a drainage tube (2), the lower end of the drainage tube (2) is connected to a sealing cap (3), the lower end of the sealing cap (3) is connected to a blood storage tube (4), the lower end of the blood storage tube (4) is fitted with a layering component (6), the lower end of the blood storage tube (4) is provided with a bleeding hole (7), the lower end of the blood storage tube (4) is provided with a fixing groove two (10), the lower end of the layering component (6) is provided with a fixing groove one (8), the fixing groove two (10) is provided with a fixing groove two (8). The internal fixed component is fixedly connected to the first fixed component (12). The top of the internal fixed groove (10) is fixedly connected to the telescopic rod (11). The bottom of the telescopic rod (11) is slidably connected to the second fixed component (13). The bottom of the second fixed component (13) is fixedly connected to the base (5). The upper center of the base (5) is fixedly connected to the pushing component (9). The center of the base (5) is provided with a hollow groove (14). The inside of the hollow groove (14) is fitted with an electrode sheet (15).

2. The medical electrode pad blood sampling and testing device according to claim 1, characterized in that: The part of the blood storage tube (4) that contacts the layered component (6) fits perfectly, and a magnetic suction device is fixedly connected to the part of the blood storage tube (4) that contacts the layered component (6).

3. The medical electrode pad blood sampling and testing device according to claim 1, characterized in that: The area of ​​the bleeding hole (7) is greater than the area of ​​the lower end of the layered component (6), the shape of the fixing groove (8) is the same as the shape of the pushing component (9), and the length of the pushing component (9) is greater than the depth of the fixing groove (8).

4. The medical electrode pad blood sampling and testing device according to claim 1, characterized in that: The second fixing groove (10) is circular, and the telescopic rod (11) has four evenly distributed at equal angles inside the second fixing groove (10). The first fixing component (12) is a hollow circular track on the inner wall of the second fixing groove (10). The length of the first fixing component (12) is greater than the depth of the second fixing groove (10).

5. The medical electrode pad blood sampling and testing device according to claim 1, characterized in that: The length of the telescopic part of the telescopic rod (11) is greater than the length of the mating part of the layered component (6) and the blood storage tube (4), and the length of the spring part of the telescopic rod (11) is greater than the length of the contracted part.

6. The medical electrode pad blood sampling and testing device according to claim 1, characterized in that: The length of the fixed component 2 (13) and the telescopic rod (11) after compression is greater than the depth of the fixed groove 2 (10) and the difference is greater than the length of the part of the layered component (6) and the blood storage tube (4) that are attached.

7. The medical electrode pad blood sampling and testing device according to claim 1, characterized in that: The hollow groove (14) is circular in shape and rectangular in front. The pushing component (9) is located at the center of the hollow groove (14). The shape and size of the rectangular part of the hollow groove (14) are the same as the front of the electrode sheet (15).

8. The medical electrode pad blood sampling and testing device according to claim 1, characterized in that: The electrode sheet (15) is fitted with a fixed outer shell at its rear end, and the fixed outer shell has a groove at its rear end that fits the base (5) minus the center part of the hollow groove (14).

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