Blood sampling device for a portable blood glucose meter

Abstract

This invention relates to the technical field of medical devices, providing a portable blood collection device for a blood glucose meter, comprising a housing, a lancet, and a test strip. The lancet and test strip are respectively disposed on the left and right sides of the housing. The housing has a blood collection channel corresponding to the lancet, and a blood collection port communicating with the blood collection channel. The lancet is movably installed within the blood collection channel via a pressing component, configured to extend from the blood collection channel upon pressing to perform blood collection. The housing has a test strip channel corresponding to the test strip, and a blood collection port and a detection port are provided on the housing, both communicating with the test strip channel. The test strip is movably installed within the test strip channel via a button component. This invention integrates the lancet and test strip into the blood collection device, and separately configures a pressing component and a button component, allowing patients to complete blood collection and smuggling with simple pressing and sliding operations, thereby reducing the steps involved in traditional multi-step operations and lowering the barrier to entry for users.

Description

Technical Field

[0001] This invention relates to the technical field of medical devices, specifically to a blood collection device for a portable blood glucose meter. Background Technology

[0002] Diabetes is a common chronic metabolic disease, requiring patients to monitor their blood glucose levels long-term to guide diet, exercise, and medication. Currently, home-use portable blood glucose meters have become an important tool for the daily management of diabetes. A typical blood glucose testing procedure involves: pricking the fingertip with a lancet to obtain a small amount of blood, then adding the blood to the reaction area of ​​a blood glucose test strip, which is then read and displayed by the blood glucose meter.

[0003] In existing technologies, blood collection typically relies on a separate lancing device, while the test strip is manually placed into the glucose meter slot after being removed from the test strip cartridge. This process has several drawbacks. Patients must sequentially complete multiple steps, including installing the lancing needle, adjusting the puncture depth, pressing to trigger blood collection, removing the test strip, aligning it with the blood collection area, and applying the blood sample. This cumbersome procedure can easily lead to operational errors or test failures, especially for visually impaired patients, those with hand tremors, limited joint mobility, or the elderly, whose coordination and fine motor skills are reduced. Furthermore, after blood collection, the blood droplet must be actively transferred from the finger to the blood collection area of ​​the test strip. During this process, factors such as blood droplet misalignment, insufficient blood volume, skin contamination, or oxidation can cause insufficient blood absorption or abnormal reactions on the test strip, leading to test errors or even requiring repeated blood collection. This not only reduces testing efficiency but also increases patient discomfort. Summary of the Invention

[0004] This invention provides a portable blood sampling device for blood glucose meters, which effectively solves the problems of cumbersome operation procedures and easy operational errors or test failures in existing technologies. The specific implementation method is as follows: A portable blood glucose meter blood collection device includes a housing, a lancet, and a test strip. The lancet and test strip are respectively disposed on the left and right sides of the housing. The housing has a blood collection channel corresponding to the lancet and a blood collection port that communicates with the blood collection channel. The lancet is movably installed in the blood collection channel via a pressing component and is configured to extend from the blood collection channel under pressing operation to perform blood collection. The housing has a test strip channel corresponding to the test strip and has a blood collection port and a detection port that are both communicated with the test strip channel. The test strip is movably installed in the test strip channel via a button component and is configured to extend from the test strip channel under button operation to collect blood for testing.

[0005] As a further embodiment of the present invention, the pressing assembly includes a push rod and a first elastic element. The blood collection needle is installed at the bottom end of the push rod, and the first elastic element is sleeved on the outside of the blood collection needle and located between the push rod and the outer shell. When the push rod is pressed, the blood collection needle is driven to compress the first elastic element. After release, the first elastic element drives the blood collection needle to spring back and reset.

[0006] As a further embodiment of the present invention, the push rod is provided with a sleeve, the sleeve being axially sleeved on the push rod, and the outer shell is provided with a limiting block at the free end adjacent to the blood collection channel. When the push rod is pressed, the blood collection needle and the sleeve move toward the free end of the blood collection channel until the sleeve abuts against the limiting block to restrict the movement of the push rod.

[0007] As a further embodiment of the present invention, the blood collection needle is connected to the push rod via a connector. The connector is provided with at least one locking hook, and the bottom end of the push rod is provided with a groove corresponding to the locking hook. When the connector is inserted into the push rod, the locking hook retracts inward due to elastic deformation and is embedded in the groove, so as to achieve a locking connection between the blood collection needle and the push rod.

[0008] As a further embodiment of the present invention, the button assembly includes a button slidably disposed on the surface of the housing and a slide seat slidably disposed in the test strip channel. The button is connected to the slide seat via a connecting block, and the test strip is mounted on the slide seat.

[0009] As a further aspect of the present invention, a second elastic element is provided inside the outer shell. The second elastic element is disposed between the connecting block and the outer shell. When the button slides toward the detection port or blood collection port, the second elastic element is compressed.

[0010] As a further aspect of the present invention, a guide component is provided on the outer shell, the guide component being used to guide the sliding of the test strip.

[0011] As a further embodiment of the present invention, the guide assembly includes two opposing rollers and a slider disposed at the end of the rollers. The rollers are rotatably mounted on the housing and respectively attached to the upper and lower surfaces of the test strip. The housing has a groove corresponding to the slider, and the slider is slidably disposed in the groove.

[0012] As a further embodiment of the present invention, a third elastic element is provided on the slider, and the two ends of the third elastic element abut against the slider and the groove wall of the groove, respectively.

[0013] As a further embodiment of the present invention, the guide assembly is provided in two sets, and the two sets of guide assemblies are respectively arranged adjacent to the detection port and the blood collection port.

[0014] Due to the adoption of the above technical solutions, the beneficial technical effects of the present invention are as follows: 1. This invention integrates the blood collection needle and test strip into the blood collection device, and respectively equips them with a pressing component and a button component. Patients only need to press and slide to complete the blood collection and collection, thereby reducing the number of steps in the traditional step-by-step operation and lowering the threshold for use. 2. The test strip of this invention can be pushed out to the blood collection port by a button, and directly adheres to the blood collection site to absorb blood, thereby avoiding sampling failure caused by insufficient blood volume, positional deviation or skin contact contamination during manual blood dripping. After blood collection, the test strip is pushed to the detection port and directly inserted into the detector, which not only improves the reliability of detection, but also reduces the need for repeated blood collection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a blood collection device for a portable blood glucose meter in a specific embodiment of the present invention; Figure 2 This is a cross-sectional view of a blood collection device for a portable blood glucose meter according to a specific embodiment of the present invention; Figure 3 This is an exploded view of the pressing component in a specific embodiment of the present invention; Figure 4 This is a schematic diagram of the connector and blood collection needle in a specific embodiment of the present invention; Figure 5 This is an exploded view of the button component in a specific embodiment of the present invention; Figure 6 This is a diagram showing the working state of the test strip being removed from the blood collection port in a specific embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the test strip and the guide assembly in a specific embodiment of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of the structure of section A; Figure 9 This is an exploded view of a blood collection device for a portable blood glucose meter according to a specific embodiment of the present invention.

[0016] Explanation of reference numerals in the attached figures: 1. Outer shell; 11. Blood collection channel; 12. Test strip channel; 13. Limiting block; 14. Blood collection port; 15. Blood collection port; 16. Detection port; 17. Valve; 18. Card slot; 19. Limiting protrusion ring. 2. Pressing assembly, 21. Pressing cap, 22. Sleeve, 221. Guide block, 23. Push rod, 231. Snap groove, 24. Connector, 241. Groove, 242. Locking hook, 25. First spring. 3. Button assembly; 31. Button; 32. Connecting block; 33. Slide; 34. Second spring. 4. Guide assembly; 41. Roller; 42. Rotating shaft; 43. Slider; 44. Third spring. 5. Blood lancet, 6. Test strip, 61. Positioning hole, 7. Top shell, 8. Lower shell. Detailed Implementation

[0017] The specific embodiments of the present invention are described below with reference to the accompanying drawings and examples: It should be noted that the structures, proportions, sizes, etc. illustrated in the accompanying drawings of this specification are only used to complement the content disclosed in the specification, so that those skilled in the art can understand and read them, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0018] Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0019] Combination Figures 1 to 9As shown, this invention provides a portable blood glucose meter blood collection device, including a housing 1, a lancet 5, and a test strip 6. The housing 1 is integrally injection molded from medical-grade plastic. The lancet 5 and the test strip 6 are respectively disposed on the left and right sides of the housing 1, thereby achieving spatial separation of blood collection and testing functions and avoiding contamination of the test strip 6. Inside the housing 1, a blood collection channel 11 is provided corresponding to the lancet 5. A blood collection port 14 is provided on the housing 1, which communicates with the blood collection channel 11 and is located at the bottom of the housing 1 for the lancet 5 to pass through. The lancet 5 is movably installed in the blood collection channel 11 via a pressing component 2, configured to extend from the blood collection channel 11 under pressing operation to perform blood collection. Inside the housing 1, a test strip channel 12 is provided corresponding to the test strip 6. The test strip 6 is a disposable electrochemical test strip with a hydrophilic blood-absorbing area at the front end and a detection contact integrated at the rear end for contact with the electrodes of the blood glucose meter. The outer shell 1 has a blood collection port 15 and a detection port 16, both of which are connected to the test strip channel 12. The blood collection port 15 is located to the side of the blood collection port 14, and the hydrophilic blood-absorbing area corresponds to the blood collection port 15, which is used to expose the blood-absorbing area of ​​the test strip 6 to contact blood. The detection contact corresponds to the detection port 16 and is located on the opposite side of the blood collection port 15, which is used to expose its detection contact when the test strip 6 is inserted into the blood glucose meter host, thereby realizing the reading of electrical signals. The test strip 6 is movably installed in the test strip channel 12 through the button assembly 3, and is configured to extend from the test strip channel 12 when the button is operated for collecting blood and performing tests.

[0020] For example, both the blood collection port 15 and the detection port 16 are provided with valves 17. The valves 17 are made of silicone and are installed at the transition position between the test strip channel 12 and the external opening. They are used to seal the test strip channel 12 when not in use, preventing dust, moisture, or contaminants from entering. When the test strip 6 is in the retracted state, the valves 17 remain closed, covering the blood collection port 15 and the detection port 16, thereby preventing external dust from entering the test strip channel 12 when not in use, and also preventing contamination of the test strip 6 when the lancet 5 collects blood. When the button assembly 3 is operated, causing the test strip 6 to slide outward along the test strip channel 12, the front or rear end of the test strip 6 contacts and pushes the corresponding valve 17, causing it to elastically deform and partially open, thereby allowing the corresponding part of the test strip 6 to extend from the blood collection port 15 or the detection port 16. Specifically, during the blood collection phase, the test strip 6 moves forward, and its blood-absorbing area pushes open the valve 17 at the blood collection port 15, exposing it to the outside to collect blood droplets. When it is necessary to insert the blood glucose meter, the detection contact area of ​​the test strip 6 can push open the valve 17 at the detection port 16, thereby ensuring unobstructed electrical contact. When the test strip 6 retracts, the valve 17 returns to its closed state due to its own elasticity, resealing the test strip channel 12.

[0021] In specific operation, first hold the outer casing 1, align the blood collection port 14 with the area to be punctured, and press the pressing component 2 located on the top of the outer casing 1 with your thumb. This causes the lancet 5 to move towards the blood collection port 14 within the blood collection channel 11 and exit through the blood collection port 14, piercing the skin to form a tiny blood droplet. After the puncture is complete, the pressing component 2 resets. Then, push the button component 3 to move the test strip 6 along the test strip channel 12 towards the blood collection port 15, allowing its hydrophilic blood-absorbing area at the front end to extend from the blood collection port 15. The blood-absorbing area of ​​the test strip 6 automatically absorbs a sufficient amount of blood sample through capillary action. After the blood collection is complete, release the button component 3, and the test strip 6 retracts into the test strip channel 12. Next, push the button component 3 to extend the detection contact at the rear end of the test strip 6 through the detection port 16 on the outer casing 1 and make contact with the electrodes inside the blood glucose meter. The blood glucose meter analyzes the glucose concentration in the blood based on the principle of electrochemical reaction and outputs the test results on the display screen.

[0022] In this embodiment, as Figure 2 As shown, the pressing assembly 2 includes a push rod 23 and a first elastic element. The blood collection needle 5 is installed at the bottom end of the push rod 23. The first elastic element is sleeved on the outside of the blood collection needle 5 and is located between the push rod 23 and the outer shell 1. When the push rod 23 is pressed, the blood collection needle 5 is driven to compress the first elastic element. After release, the first elastic element drives the blood collection needle 5 to spring back to its original position. When the push rod 23 is pressed down, the push rod 23 overcomes the elastic force of the first elastic element, pushing the blood collection needle 5 forward and extending it from the blood collection port 14 to pierce the skin and complete blood collection. After release, the first elastic element returns to its original position, driving the blood collection needle 5 to retract into the blood collection channel 11, thereby ensuring safe use.

[0023] Preferably, the first elastic element is a first spring 25. One end of the first spring 25 is fixedly connected to the blood collection needle 5, and the other end is fixedly connected to the inner wall of the outer shell 1. It is used to provide a restoring force after the blood collection needle 5 has collected blood, so that the blood collection needle 5 automatically retracts into the blood collection channel 11 to avoid the needle tip being exposed, thereby improving the safety of use.

[0024] For example, the top end of the push rod 23 is provided with a pressing cap 21 along the axial direction. The pressing cap 21 is movably mounted on the outer shell 1. The outer shell 1 is provided with a guide boss corresponding to the pressing cap 21. The guide boss extends along the axial direction of the blood collection channel 11 and is used to limit and guide the pressing cap 21, ensuring that the blood collection needle 5 extends or retracts stably in a straight line during the pressing process, preventing deviation or jamming, thereby improving the reliability of puncture.

[0025] For example, the push rod 23 is provided with a sleeve 22, which is axially sleeved on the push rod 23. The outer shell 1 is provided with a limiting block 13 at the free end adjacent to the blood collection channel 11. When the push rod 23 is pressed, the blood collection needle 5 and the sleeve 22 move toward the free end of the blood collection channel 11. When the sleeve 22 moves to abut against the limiting block 13, further movement of the push rod 23 is prevented, thereby limiting the extension stroke of the blood collection needle 5 and avoiding excessive puncture that could cause patient discomfort or tissue damage. Specifically, the limiting block 13 has a ring-shaped structure, with its outer peripheral wall connected to the inner wall of the outer shell 1. A through hole for the blood collection needle 5 to pass through is formed at the center of the ring. The inner diameter of the limiting block 13 is smaller than the outer diameter of the sleeve 22, so that the movement of the sleeve 22 is blocked and it can only contact the end face of the limiting block 13, thereby limiting the blood collection needle 5.

[0026] To further ensure the stable movement of the sleeve 22 and push rod 23 along the blood collection channel 11, such as Figure 3 As shown, a guide block 221 is provided on the outer wall of the sleeve 22. The guide block 221 extends along the axial direction of the sleeve 22. Correspondingly, the outer shell 1 has a guide groove corresponding to the guide block 221. The guide block 221 is slidably disposed in the guide groove. Through the guiding cooperation between the guide block 221 and the guide groove, the sleeve 22 is constrained to move only in a straight line along the axial direction of the blood collection channel 11, thereby ensuring the accuracy and stability of the puncture action of the blood collection needle 5.

[0027] For example, such as Figure 4 As shown, the blood collection needle 5 is connected to the push rod 23 via a connector 24. The blood collection needle 5 is axially positioned at the bottom of the connector 24. The connector 24 is provided with at least one locking hook 242. The bottom end of the push rod 23 is provided with a locking groove 231 corresponding to the locking hook 242. The connector 24 has a cylindrical structure with multiple grooves 241 evenly distributed around its circumference. Each groove 241 extends along the axial direction of the connector 24 and is evenly distributed in the circumferential direction. These grooves 241 cause the sidewall of the connector 24 to form multiple elastic arms. The free ends of the elastic arms form the locking hooks 242. The locking hooks 242 are provided on the inner wall of the connector 24, and a guide slope is formed on the side facing the push rod 23. This slope is inward and downward. When the connector 24 is inserted into the bottom end of the push rod 23, the locking hook 242 first contacts the end of the push rod 23. Under the action of the guide slope, the locking hook 242 is squeezed by the inner wall of the push rod 23 and undergoes elastic deformation, retracting inward. Then, the connector 24 continues to be inserted, and the locking hook 242 slides over the outer wall of the push rod 23. When it moves to the position of the latching groove 231, the elastic restoring force causes the locking hook 242 to pop outward and embed into the latching groove 231, thereby realizing the locking connection between the blood collection needle 5 and the push rod 23.

[0028] In this embodiment, as Figure 5 , Figure 6As shown, the button assembly 3 includes a button 31 slidably disposed on the surface of the housing 1 and a slide block 33 slidably disposed within the test strip channel 12. The button 31 is connected to the slide block 33 via a connecting block 32, and the test strip 6 is mounted on the slide block 33. The slide block 33 is provided with a positioning shaft, and the test strip 6 is provided with a positioning hole 61. The positioning hole 61 cooperates with the positioning shaft to fix the test strip 6 on the slide block 33. In the initial state, the test strip 6 is located in the test strip channel 12. When the button 31 is pushed, the button 31 pushes the test strip 6 forward, so that its blood absorption area extends out of the blood collection port 15, which is convenient for collecting the blood droplets formed after the lancet 5 punctures the skin. After blood collection is completed, the button 31 is released, and the test strip 6 returns to its original position. Pushing the button 31 again in the opposite direction will extend the detection contact at the rear end of the test strip 6 through the detection port 16 on the outer casing 1 and make contact with the electrodes inside the blood glucose meter. The blood glucose meter analyzes the glucose concentration in the blood based on the principle of electrochemical reaction and outputs the test results on the display screen.

[0029] Exemplarily, the outer casing 1 has a slot 18 corresponding to the button assembly 3. The slot 18 extends axially along the test strip channel 12. The connecting block 32 is slidably disposed in the slot 18 to drive the test strip 6 to reciprocate within the test strip channel 12. A second elastic element is provided inside the outer casing 1, disposed between the connecting block 32 and the outer casing 1. Specifically, the second elastic element is a second spring 34. Two second springs 34 are provided, one of which is disposed between the connecting block 32 and the front wall of the slot 18, and its position corresponds to the blood collection port 15; the other second spring 34 is disposed between the connecting block 32 and the rear wall of the slot 18, and its position corresponds to the detection port 16. When the button 31 slides towards the detection port 16 or the blood collection port 15, the second elastic element is compressed. When button 31 is pushed toward blood collection port 15, connecting block 32 slides forward, compressing the second spring 34 on the front side, and simultaneously pushing test strip 6 forward to expose its blood absorption area from blood collection port 15 for blood collection; when button 31 is pushed toward detection port 16, connecting block 32 slides backward, compressing the second spring 34 on the rear side, and simultaneously pushing test strip 6 backward to expose its detection contact from blood collection port 15 for detection.

[0030] In this embodiment, as Figure 7 , Figure 8As shown, the outer casing 1 is provided with a guide assembly 4, which guides the sliding process of the test strip 6 within the test strip channel 12, ensuring accurate alignment of the blood absorption area with the blood collection port 15 and the detection contact with the detection port 16. Specifically, the guide assembly 4 includes two opposing rollers 41, located above and below the test strip 6, respectively. The shaft ends of the rollers 41 are movably mounted on the outer casing 1 via sliders 43. The rotating shafts 42 of the rollers 41 are rotatably mounted on the outer casing 1. The outer circumferential surfaces of the rollers 41 are respectively in contact with the upper and lower surfaces of the test strip 6, providing rolling support during the movement of the test strip 6, thereby reducing the frictional resistance of the test strip 6. The outer casing 1 has a groove corresponding to the position of the slider 43. The groove extends perpendicular to the moving direction of the test strip 6. The slider 43 is slidably disposed in the groove, allowing the rollers 41 to float up and down within the groove area to accommodate test strips 6 of different thicknesses or slight warping.

[0031] For example, the slider 43 is provided with a third elastic element, the two ends of which abut against the slider 43 and the groove wall of the slide, respectively, for applying an elastic preload force toward the test strip 6 to the roller shaft 41. Preferably, the third elastic element is a third spring 44, one end of which is connected to the slider 43 and the other end is connected to the groove wall of the slide. The third spring 44 allows the slider 43 to move within the slide, which avoids the roller shaft 41 clamping the test strip 6 too tightly and hindering its sliding, and also ensures that the test strip 6 is always stably constrained between the two roller shafts 41, preventing it from deviating, jumping or falling off the guide path during movement.

[0032] Preferably, the guide assembly 4 is provided in two sets, respectively located adjacent to the detection port 16 and the blood collection port 15. The set of guide assemblies 4 adjacent to the blood collection port 15 is used to stably guide the front end of the test strip 6 when it extends to collect blood; the set of guide assemblies 4 adjacent to the detection port 16 is used to position and support the rear end of the test strip 6 when it extends out of the detection port 16 and enters the blood glucose meter main unit, ensuring electrical connection between the detection contacts and the blood glucose meter electrodes.

[0033] For example, the outer shell 1 has an upper shell 7 at its upper end and a lower shell 8 at its lower end. The upper shell 7 and the outer shell 1 enclose a receiving space for accommodating the pressing cap 21; the lower shell 8 covers the bottom of the outer shell 1 and seals the blood collection port 14 and the blood collection port 15 to prevent dust contamination or accidental contact, thereby improving safety and hygiene. Specifically, the outer shell 1 has inner grooves at its upper and lower ends, and the upper shell 7 and the lower shell 8 are respectively fastened into the inner grooves. To achieve a stable connection between the outer shell 1 and the upper shell 7 and the outer shell 1 and the lower shell 8, the outer shell 1 has an annular limiting protrusion 19 along the circumference of the inner groove. Correspondingly, the inner sidewalls of the upper shell 7 and the lower shell 8 are provided with limiting slots, and the positions and contours of the limiting slots match those of the limiting protrusion 19. During assembly, the upper shell 7 and the lower shell 8 are pressed into the outer shell 1 from the top and bottom directions respectively, and the limiting protrusion 19 is elastically embedded in the corresponding limiting slot, thereby forming a snap-fit ​​connection, which ensures the overall sealing and structural stability of the device.

[0034] Preferably, the contact surface between the limiting protrusion 19 and the limiting slot is provided with a semi-circular structure to reduce assembly resistance and improve engagement accuracy.

[0035] When using the device, the patient first opens the upper shell 7 and the lower shell 8, holds the outer shell 1, aligns the blood collection port 14 with the area to be punctured, and then presses the pressing cap 21 located on the top of the outer shell 1 with their thumb, causing the blood collection needle 5 to move towards the blood collection port 14 within the blood collection channel 11 and pass through the blood collection port 14, piercing the skin to form a tiny blood droplet. After the puncture is completed, the push rod 23 automatically resets under the action of the first spring 25 and drives the blood collection needle 5 back into the blood collection channel 11 to avoid the needle tip being exposed and causing secondary damage. Next, the patient pushes the button 31, causing the test strip 6 to slide along the test strip channel 12 towards the blood collection port 15, so that the hydrophilic blood absorption area at its front end extends out of the blood collection port 15. Since the blood collection port 15 is located to the side of the blood collection port 14, the patient can directly bring the newly formed blood droplet close to the blood collection port 15, and the blood absorption area of ​​the test strip 6 automatically absorbs a sufficient amount of blood sample through capillary action.

[0036] After blood collection is complete, release button 31. The test strip 6 retracts into the test strip channel 12 under the action of the second spring 34. Then, push button 31 again in the opposite direction, causing the test strip 6 to slide along the test strip channel 12 towards the detection port 16, so that its hydrophilic blood-absorbing area extends out of the detection port 16. The patient inserts the detection contact of the test strip 6 into the matching blood glucose meter main unit. At this time, the detection contact at the rear end of the test strip 6 contacts the electrodes inside the blood glucose meter through the detection port 16 on the outer casing 1. The blood glucose meter analyzes the glucose concentration in the blood based on the principle of electrochemical reaction and outputs the test results on the display screen.

[0037] Many other changes and modifications can be made without departing from the concept and scope of this invention. It should be understood that this invention is not limited to the specific embodiments, and the scope of this invention is defined by the appended claims.

Claims

1. A blood collection device for a portable blood glucose meter, characterized in that, The device includes a housing (1), a blood collection needle (5), and a test strip (6). The blood collection needle (5) and the test strip (6) are respectively disposed on the left and right sides of the housing (1). The housing (1) is provided with a blood collection channel (11) corresponding to the blood collection needle (5). A blood collection port (14) is provided on the housing (1), and the blood collection port (14) is connected to the blood collection channel (11). The blood collection needle (5) is movably installed in the blood collection channel (11) through a pressing component (2), and is configured to draw blood from the blood collection needle (5) under pressing operation. The blood collection channel (11) extends to perform blood collection. The outer shell (1) is provided with a test strip channel (12) corresponding to the test strip (6). The outer shell (1) is provided with a blood collection port (15) and a detection port (16). The blood collection port (15) and the detection port (16) are both connected to the test strip channel (12). The test strip (6) is movably installed in the test strip channel (12) through the button assembly (3) and is configured to extend from the test strip channel (12) under button operation for collecting blood and performing detection.

2. The blood collection device for a portable blood glucose meter according to claim 1, characterized in that, The pressing assembly (2) includes a push rod (23) and a first elastic element. The blood collection needle (5) is installed at the bottom end of the push rod (23). The first elastic element is sleeved on the outside of the blood collection needle (5) and located between the push rod (23) and the outer shell (1). When the push rod (23) is pressed, the blood collection needle (5) is driven to compress the first elastic element. After release, the first elastic element drives the blood collection needle (5) to spring back and reset.

3. The blood collection device for a portable blood glucose meter according to claim 2, characterized in that, The push rod (23) is provided with a sleeve (22), which is axially sleeved on the push rod (23). The outer shell (1) is provided with a limiting block (13) at the free end adjacent to the blood collection channel (11). When the push rod (23) is pressed, the blood collection needle (5) and the sleeve (22) move toward the free end of the blood collection channel (11) until the sleeve (22) abuts against the limiting block (13) to restrict the movement of the push rod (23).

4. The blood collection device for a portable blood glucose meter according to claim 2, characterized in that, The blood collection needle (5) is connected to the push rod (23) via a connector (24). The connector (24) is provided with at least one locking hook (242). The bottom end of the push rod (23) is provided with a groove (231) corresponding to the locking hook (242). When the connector (24) is inserted into the push rod (23), the locking hook (242) retracts inward due to elastic deformation and is embedded in the groove (231) to achieve a locking connection between the blood collection needle (5) and the push rod (23).

5. A blood collection device for a portable blood glucose meter according to claim 1, characterized in that, The button assembly (3) includes a button (31) that is slidably disposed on the surface of the housing (1) and a slide (33) that is slidably disposed in the test strip channel (12). The button (31) is connected to the slide (33) through a connecting block (32), and the test strip (6) is mounted on the slide (33).

6. A blood collection device for a portable blood glucose meter according to claim 5, characterized in that, The outer casing (1) is provided with a second elastic element, which is disposed between the connecting block (32) and the outer casing (1). When the button (31) slides toward the detection port (16) or the blood collection port (15), the second elastic element is compressed.

7. A blood collection device for a portable blood glucose meter according to claim 1, characterized in that, The outer shell (1) is provided with a guide component (4), which is used to guide the sliding of the test strip (6).

8. A blood collection device for a portable blood glucose meter according to claim 7, characterized in that, The guide assembly (4) includes two opposing rollers (41) and a slider (43) disposed at the end of the rollers (41). The rollers (41) are rotatably mounted on the housing (1) and respectively attached to the upper and lower surfaces of the test strip (6). The housing (1) has a groove corresponding to the slider (43), and the slider (43) is slidably disposed in the groove.

9. A blood collection device for a portable blood glucose meter according to claim 8, characterized in that, The slider (43) is provided with a third elastic element, and the two ends of the third elastic element abut against the slider (43) and the groove wall of the groove respectively.

10. A blood collection device for a portable blood glucose meter according to claim 8, characterized in that, The guide component (4) is provided in two sets, and the two sets of guide components (4) are respectively located near the detection port (16) and the blood collection port (15).

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