Blood glucose detection sampling device
By designing a blood glucose testing sampling device with a blood purification tube and detachable limiting components, and utilizing a capillary needle and reservoir to achieve negative pressure sampling, the pain and inaccuracy problems of traditional blood glucose testing are solved, enabling painless multiple sampling and efficient testing.
Patent Information
- Application Number
- CN202422211875.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-09-10
AI Technical Summary
Traditional fingertip blood glucose testing is affected by anticoagulants, leading to inaccurate blood glucose meter readings and increased patient discomfort from multiple punctures, making continuous blood glucose monitoring difficult.
Design a blood glucose testing sampling device, including a blood purification tube and a detachable limiting component. It uses a capillary needle and a reservoir to achieve negative pressure sampling, avoiding additional needle pricks and enabling continuous multiple sampling.
Reduce patient harm, improve testing efficiency and data accuracy, support multiple painless sampling and subsequent testing, and simplify the replacement process.
Smart Images
Figure CN223529443U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of blood glucose detection technology, and in particular to a blood glucose detection sampling device. Background Technology
[0002] For kidney dialysis patients, blood glucose monitoring is a crucial part, especially during blood purification. Patients with diabetic nephropathy undergoing hemodialysis have unique glucose metabolism, experiencing significant blood glucose fluctuations during dialysis, often including hypoglycemia and postdialysis hyperglycemia. Repeated hypoglycemia during dialysis can lead to irreversible brain cell damage, accelerate kidney function deterioration, and increase the risk of death.
[0003] Patients use anticoagulants during dialysis. Traditionally, blood glucose is measured by pricking the fingertips with a needle. However, the coagulation function is affected by the anticoagulant, resulting in prolonged bleeding time and only being able to measure the blood glucose at that moment. If a continuous blood glucose value is desired, multiple finger pricks are required, increasing the patient's suffering. Utility Model Content
[0004] The purpose of this invention is to provide a blood glucose testing sampling device to solve the technical problems existing in the prior art.
[0005] To solve the above-mentioned technical problems, this utility model provides a blood glucose testing sampling device, including a blood purification tube and an arterial end sampling point connected to the blood purification tube. A limiting component is detachably installed on the top of the arterial end sampling point. A rubber stopper is embedded inside the limiting component, and a blood storage component is provided on the rubber stopper for absorbing blood from inside the blood purification tube.
[0006] Preferably, the blood storage device includes a capillary needle and a reservoir fixed to the top of the capillary needle, with the lower end of the capillary needle passing through a rubber stopper.
[0007] Preferably, a positioning disc is fixedly connected to the capillary needle.
[0008] Preferably, the reservoir is an ellipsoidal structure and is made of rubber.
[0009] Preferably, the limiting member includes a collar threaded onto the top of the arterial sampling point, two limiting rings fixed inside the collar, a receiving cavity formed between the two limiting rings, and a rubber plug disposed inside the receiving cavity.
[0010] Preferably, the lower end of the collar has an internal thread on its inner wall, and the upper end of the arterial sampling point has an external thread.
[0011] Preferably, a sealing ring is provided inside the collar, and the sealing ring is located between the top of the arterial end sampling point and the lower limiting ring.
[0012] Preferably, the rubber stopper has a disc-shaped structure.
[0013] Preferably, the axis of the arterial end sampling point is set perpendicular to the axis of the blood purification tube.
[0014] Preferably, the blood purification tube is made of polyvinyl chloride.
[0015] By adopting the above technical solution, this utility model has the following beneficial effects:
[0016] 1. In this invention, the patient's blood flows inside the blood purification tube, achieving blood circulation. Then, the reservoir is squeezed to expel the gas inside through a capillary needle, creating a negative pressure state inside the reservoir. The capillary needle then punctures the rubber stopper, allowing the blood inside the blood purification tube to flow into the reservoir for temporary storage. This achieves the purpose of blood sampling. This method eliminates the need for additional needle punctures in the patient's arm, reducing harm to the patient. Furthermore, it allows for multiple consecutive samplings, enabling more efficient and repeated testing of the patient and improving data accuracy.
[0017] 2. In this utility model, the limiting component and the arterial end sampling point are detachable. This allows the limiting component to be replaced as a whole when the rubber stopper is severely damaged, thus enabling continued blood sampling and subsequent blood glucose testing. Attached Figure Description
[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 A combined structural diagram of a blood glucose detection sampling device provided in an embodiment of this utility model;
[0020] Figure 2 for Figure 1 Cross-sectional structural diagram;
[0021] Figure 3 An exploded structural diagram of a blood glucose detection sampling device provided in an embodiment of this utility model;
[0022] Figure 4 for Figure 2 Enlarged structural diagram at point A;
[0023] Figure 5A structural diagram of a limiting component for a blood glucose detection sampling device provided in an embodiment of this utility model;
[0024] Figure 6 This is a structural diagram of the blood storage component of a blood glucose testing sampling device provided in an embodiment of the present invention.
[0025] Reference numerals: 1. Blood purification tube; 2. Arterial end sampling point; 3. Limiting component; 31. Collar; 311. Internal thread; 32. Limiting ring; 321. Receiving cavity; 4. Rubber stopper; 5. Blood storage component; 51. Capillary needle; 52. Positioning disc; 53. Liquid reservoir; 6. Sealing ring. Detailed Implementation
[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] The present invention will be further explained below with reference to specific embodiments.
[0030] like Figure 1-6As shown, this embodiment provides a blood glucose testing sampling device, including a blood purification tube 1 and an arterial end sampling point 2 connected to the blood purification tube 1. A limiting member 3 is detachably installed on the top of the arterial end sampling point 2. A rubber stopper 4 is embedded inside the limiting member 3, and a blood storage member 5 is provided on the rubber stopper 4 for absorbing blood from inside the blood purification tube 1.
[0031] The blood storage device 5 includes a capillary needle 51 and a reservoir 53 fixed to the top of the capillary needle 51. The lower end of the capillary needle 51 passes through a rubber stopper 4.
[0032] The patient's blood flows inside the blood purification tube 1, achieving blood circulation and performing hemodialysis. When sampling the blood, the reservoir 53 is first squeezed to expel the air inside through the capillary needle 51, creating a negative pressure state inside the reservoir 53. Then, the capillary needle 51 punctures the rubber stopper 4, and the blood inside the blood purification tube 1 flows into the reservoir 53 through the capillary needle 51 for temporary storage, thus achieving the purpose of blood sampling. This method does not require additional needles to be inserted into the patient's arm, reducing harm to the patient, and allows for multiple consecutive sampling, enabling more efficient and repeated testing of the patient and improving data accuracy.
[0033] A positioning plate 52 is fixedly connected to the capillary needle 51, and the capillary needle 51 can be conveniently operated indirectly by holding the positioning plate 52.
[0034] The reservoir 53 is an ellipsoidal structure made of rubber and capable of elastic deformation. The reservoir 53 is used to temporarily store blood. After sampling, the capillary needle 51 is separated from the rubber stopper 4. By squeezing the reservoir 53, the blood inside is discharged through the capillary needle 51. The blood drips onto the blood glucose test strip. The test strip is inserted into the test slot of the blood glucose meter, and the blood glucose meter is used to test the blood glucose on the blood glucose test strip.
[0035] The limiting component 3 includes a collar 31 threaded onto the top of the arterial sampling point 2, and two limiting rings 32 fixed inside the collar 31. A receiving cavity 321 is formed between the two limiting rings 32. A rubber plug 4 is disposed inside the receiving cavity 321. The rubber plug 4 has good elasticity and sealing performance and can quickly restore the closed state when the capillary needle 51 passes through, preventing the solution from overflowing.
[0036] The lower end of the collar 31 has an internal thread 311 on its inner wall, and the upper end of the arterial sampling point 2 has an external thread. This ensures that the collar 31 can be connected to the arterial sampling point 2 and is also easy to disassemble.
[0037] The limiting component 3 and the arterial end sampling point 2 are detachable, so that when the rubber stopper 4 is severely damaged, the limiting component 3 can be replaced as a whole, so that blood sampling can continue and blood glucose can be tested later.
[0038] A sealing ring 6 is provided inside the collar 31. The sealing ring 6 is located between the top of the arterial end sampling point 2 and the lower limit ring 32, which enhances the sealing between the collar 31 and the arterial end sampling point 2 and prevents blood leakage.
[0039] The rubber stopper 4 has a disc-shaped structure that is adapted to the shape of the receiving cavity 321.
[0040] The axis of the arterial end sampling point 2 is set perpendicular to the axis of the blood purification tube 1.
[0041] The blood purification tubing 1 is made of polyvinyl chloride, a common plastic material with good biocompatibility and flexibility, making it suitable for use in hemodialysis tubing.
[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A blood glucose detection sampling device, characterized in that, It includes a blood purification tube (1) and an arterial end sampling point (2) connected to the blood purification tube (1). A limiting member (3) is detachably installed on the top of the arterial end sampling point (2). A rubber stopper (4) is embedded inside the limiting member (3). A blood storage member (5) is provided on the rubber stopper (4) for absorbing blood from inside the blood purification tube (1).
2. The blood glucose detection sampling device according to claim 1, characterized in that, The blood storage device (5) includes a capillary needle (51) and a reservoir (53) fixed to the top of the capillary needle (51). The lower end of the capillary needle (51) passes through a rubber stopper (4).
3. The blood glucose detection sampling device according to claim 2, characterized in that, A positioning plate (52) is fixedly connected to the capillary needle (51).
4. The blood glucose detection sampling device according to claim 2, characterized in that, The reservoir (53) is an ellipsoidal structure and is made of rubber.
5. A blood glucose detection sampling device according to claim 1, characterized in that, The limiting member (3) includes a collar (31) threaded onto the top of the arterial sampling point (2), and two limiting rings (32) fixed inside the collar (31). A receiving cavity (321) is formed between the two limiting rings (32), and the rubber plug (4) is disposed inside the receiving cavity (321).
6. A blood glucose detection sampling device according to claim 5, characterized in that, The lower end of the collar (31) has an internal thread (311) on its inner wall, and the upper end of the arterial sampling point (2) has an external thread.
7. A blood glucose detection sampling device according to claim 5, characterized in that, The collar (31) is provided with a sealing ring (6) inside, which is located between the top of the arterial end sampling point (2) and the lower limit ring (32).
8. A blood glucose detection sampling device according to claim 1, characterized in that, The rubber stopper (4) has a disc-shaped structure.
9. A blood glucose detection sampling device according to claim 1, characterized in that, The axis of the arterial end sampling point (2) is set perpendicular to the axis of the blood purification tube (1).
10. A blood glucose detection sampling device according to claim 1, characterized in that, The blood purification tube (1) is made of polyvinyl chloride.