A self-triggered radial multi-index test strip device with a safety needle

Abstract

This invention discloses a self-triggered radial multi-index test strip device, relating to the field of immunochromatographic test strip technology. It features a circular, integrated snap-lock sealed structure, comprising, from top to bottom, a high-transparency top cover layer, a functional core layer, and a pressable base layer. The functional core layer integrates a concealed self-triggered blood collection module, a central negative pressure blood storage and dispensing module, and a radial multi-arm parallel test strip core. The pressable base layer includes a base mechanism and a pressing mechanism. The concealed self-triggered blood collection module is located at the center of the device and is linked to the pressing mechanism of the pressable base layer, enabling the needle to extend automatically upon puncture and retract immediately, generating negative pressure for automatic sample aspiration. The central negative pressure blood storage and dispensing module connects the concealed self-triggered blood collection module to the radial multi-arm parallel test strip core. Each testing arm can obtain sufficient samples, further improving the consistency and accuracy of the test results.

Description

Technical Field

[0001] This invention relates to the field of immunochromatographic test strip technology, specifically to a radial multi-index test strip device with a safety needle self-triggered. Background Technology

[0002] Currently, screening for tumor-related antibodies or tumor markers mainly relies on lateral flow immunochromatographic test strips (test strip cards).

[0003] Lateral flow immunochromatographic test strips are commonly used tools for screening multiple antigens, including tumor markers. However, existing technologies for these strips have several drawbacks: most strips can only detect one antibody at a time, resulting in low detection efficiency. To improve throughput, some multiplex test strips employ a tandem multi-line structure, where multiple test lines are arranged sequentially along the same flow path. However, due to the characteristics of lateral capillary flow, sample liquid is partially consumed as it flows past the preceding test lines, significantly reducing the amount of sample contacted by the distal test lines. This leads to weak and uneven detection signals, easily causing false negatives or inaccurate quantification, severely impacting the reliability of combined screening for multiple indicators. While some radial multi-arm test strips have been researched, the integration of the blood collection and detection modules is still lacking, requiring external blood collection tools. Furthermore, the sample distribution structure is poorly designed, resulting in poor sample distribution uniformity, failing to meet the demands for convenience and accuracy. Therefore, developing a safety needle-triggered radial multi-indicator test strip device has become a pressing technical problem in this field. Summary of the Invention

[0004] The purpose of this invention is to provide a safety needle self-triggered radial multi-index test strip device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a radial multi-index test strip device with self-triggered safety needle, which is a circular integrated snap-lock sealing structure, comprising, from top to bottom, a high-transparency top cover layer, a functional core layer, and a pressing bottom support layer; The core functional layer integrates a hidden safety needle self-triggered blood collection module, a central negative pressure blood storage and sampling module, and a radial multi-arm parallel test paper core. The pressing base layer includes a base mechanism and a pressing mechanism; The concealed safety needle self-triggering blood collection module is located in the center of the device and is linked with the pressing mechanism of the pressing base layer to realize the self-triggering extension of the needle, retraction after piercing, and automatic sampling by generating negative pressure through the retraction action; The central negative pressure blood storage and sampling module is connected to the hidden safety needle self-triggered blood collection module and the radial multi-arm parallel test paper core to realize quantitative storage of blood and radial uniform diversion. The radial multi-arm parallel test paper core has eight independent test arms evenly and symmetrically distributed outward from the central blood collection area, with each test arm corresponding to a test index; the test lines and quality control lines of the test arms of the radial multi-arm parallel test paper core are on the same annular reference line. A high-transparency middle cover layer is movably fastened to the radially arranged multi-arm parallel test paper core; the high-transparency middle cover layer includes a cover body, and the cover body is set with positioning lines.

[0006] As a preferred embodiment of the present invention, the base support mechanism includes a base support, a circular central hole is axially formed in the middle of the upper surface of the base support, a through square side hole is radially formed at the bottom of the central hole, and a hole cover is fastened to the outer port of the side hole; The upper surface edge of the base is evenly spaced with scale lines corresponding to the positioning lines.

[0007] A pressing mechanism is provided inside the side hole; the pressing mechanism includes a base plate that is fitted into the lower wall of the side hole, a limiting post fixedly connected to the inner end of the upper surface of the base plate and located on the axis of the central hole, and a locking post fixedly connected to the outer end of the upper surface of the base plate, and a locking groove is provided on the locking post; A pressing plate is movably hinged to the top of the base plate via a rotating shaft. A telescopic plate is movably inserted into the inner end of the pressing plate. A connecting column corresponding to the limiting column is fixedly connected to the inner end of the upper surface of the telescopic plate. The upper surface is fixedly connected to a pressing column at its outer end. The pressing column has a support groove. The support groove is movably hinged to the support column via a torsion spring shaft. The end of the support column is embedded in a locking groove for locking.

[0008] The radial multi-arm parallel test paper core includes a tray with a fixed base, and the central hole of the tray is aligned with the central hole and has uniformly recessed arc grooves. The upper surface of the tray is fixedly connected to an arm plate for inserting the detection arm; The detection arm includes a connecting tube, which is fixedly embedded in the edge of the central perforation of the arm plate; The inner end of the connecting pipe is fixedly connected to a valve pipe with a constricted inner end, the inner end of the valve pipe is filled with a conical valve plug, and a first spring is fixedly connected between the valve plug and the connecting pipe. A pipe block is fixedly connected to the outer end of the connecting pipe, a paper trough is fixedly connected to the outer end of the pipe block, and a trough seal is fixedly connected to the outer end of the paper trough; a test strip is placed inside the paper trough, and the inner end of the test strip is inserted through the pipe block.

[0009] A finger-touch mechanism is provided above the radially arranged multi-arm parallel test paper core. The finger-touch mechanism includes a main cylinder with a fixed arm plate. The inner diameter of the main cylinder is the same as the inner diameter of the arm plate. The main cylinder movably inserts into the upper wall of the cover. A finger ring is fixedly connected to the upper end face of the main cylinder, and a concave finger membrane is fixedly connected to the inner ring of the finger ring. A needle post is attached to the middle of the lower surface of the finger membrane, and a funnel-shaped needle hole is opened in the needle post; a support strip that adheres to the finger membrane is fixedly connected between the needle post and the finger ring at equal intervals.

[0010] The radially arranged multi-arm parallel test paper core is provided with a rod sleeve mechanism, which includes a rod sleeve that is adapted to be inserted into the arc groove, and a U-shaped rail is fixedly connected to the inner side of the rod sleeve.

[0011] The safety needle self-triggered blood collection module includes a bottom key adapted to be located in the central hole. A ball-connecting device that is connected to the ball joint of the connecting column is fixedly connected to the lower surface of the bottom key. A support platform for supporting the central negative pressure blood storage and sampling module is fixedly connected to the upper surface of the bottom key. The upper surface edge of the bottom key is fixedly connected with uprights that are adapted to insert the sleeve at equal and even intervals. The upper ends of the uprights are fixedly connected with needle seats that are adapted to the main cylinder. A second spring that wraps around the uprights is fixedly connected between the needle seats and the sleeve. A needle tube is inserted through the upper part of the needle tube, the upper end of which is inserted into the lower part of the needle hole of the needle column, and the lower end of the needle tube is fixedly connected to the arrow tube.

[0012] The central negative pressure blood storage and sampling module is located within the rod sleeve mechanism. The central negative pressure blood storage and sampling module includes a negative pressure blood reservoir that is adapted and clamped between the rails. Anti-slip pads corresponding to the rails are evenly embedded on the sides of the negative pressure blood reservoir at equal intervals. A backup membrane is fixedly connected to the upper end of the negative pressure blood storage device; The lower side of the negative pressure blood storage device is uniformly connected to a flexible tube that intersects with the anti-slip pad, and the flexible tube is connected to the valve tube.

[0013] As a preferred embodiment of the present invention, the upper wall of the cover is provided with a positioning platform corresponding to the detection arm; The edge of the high-transparency top cover is provided with anti-slip buckles for fastening the bottom support mechanism.

[0014] Compared with the prior art, the beneficial effects of the present invention are: (1) A safety needle self-triggered radial multi-index test strip device, in which blood samples in the negative pressure blood reservoir are synchronously and evenly distributed from the center to each test arm through a tubing, so that each test arm can obtain sufficient and equal amount of sample, completely solving the problems of sample consumption, weak signal and false negative in the far end test line in the series structure; each test arm is independent and not connected, effectively avoiding cross-reaction between different test indicators and ensuring the specificity of the test; at the same time, the test lines and quality control lines of all test arms are standardized and distributed in a ring, and the color intensity is stable, further improving the consistency and accuracy of the test results and greatly improving the effectiveness of multi-index screening.

[0015] (2) A safety needle self-triggered radial multi-index test strip device, which first rotates the support column out of the slot through the pressing mechanism, then presses down the pressing column, and pushes the bottom key along the middle hole through the connecting column, thereby driving the needle tube to move up to pierce the finger membrane and prick the patient's finger. Then the pressing mechanism is released, and the needle tube is pulled back under the action of the second spring, realizing the process of extending and piercing and then retracting. There is no needle exposed throughout the process, which avoids safety hazards such as needle puncture injury and cross-contamination from the root and improves the safety of blood collection.

[0016] (3) A safety needle self-triggered radial multi-index test strip device, through the setting of anti-slip pad, when the needle retracts, the tube pierces the preparation membrane through the arrow tube, and the retraction action of the needle connects to the negative pressure blood storage device to generate a gentle negative pressure to achieve automatic sample aspiration. There is no need to manually squeeze the finger. The blood collection volume is precisely controlled by the negative pressure blood storage device, which avoids the test failure caused by insufficient blood collection and eliminates the discomfort caused by excessive blood collection. The blood collection process is safe, painless and controllable, and is suitable for all users such as the elderly, children and people who are afraid of needles, thus improving the blood collection adaptability.

[0017] (4) A safety needle self-triggered radial multi-index test strip device, wherein the detection arm of the connecting tube is equipped with a valve tube at the connection end. Initially, under the negative pressure control in the negative pressure blood reservoir, the valve plug blocks the valve tube. After the arrow tube pierces the membrane and connects to the negative pressure blood reservoir, when the blood volume in the negative pressure blood reservoir gradually reaches the upper limit of the volume, the internal and external air pressure tends to be balanced, the sampling action automatically stops, and then the valve plug moves under the action of the first spring, opens the valve tube, and the collected blood soaks in the reaction, improving the detection synchronization.

[0018] (5) A safety needle self-triggered radial multi-index test strip device, which automatically takes pictures of the test arm with a mobile phone, without the need for external blood collection tools, pipetting equipment, or professional training, and can be completed independently by a single person; the safety needle self-triggered blood collection module is triggered by a press mechanism with one click, eliminating the cumbersome steps of traditional blood collection such as needle pricking, squeezing, and dripping, greatly reducing the threshold for home use, allowing multi-antigen screening such as tumor markers and infectious disease antibodies to get rid of the dependence on professional medical staff, realize home self-testing, and simplify the operation process.

[0019] (6) A radial multi-index test strip device with self-triggered safety needle, wherein the positioning lines and scale lines of the high-transparency middle cover layer provide physical reference for the algorithm, and the positioning stage and the mobile phone and detection arm are standardized to ensure the accuracy of image positioning and strip segmentation; the APP can automatically complete color intensity analysis, positive and negative determination, quality control validity verification, and realize risk classification of positive combinations according to preset rules, replacing the tedious process of manual interpretation, avoiding subjective errors of manual interpretation, and allowing non-professional users to quickly understand the test results, thereby improving the clinical reference value of the test results. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the base support mechanism of the present invention; Figure 3 This is a schematic diagram of the internal structure of the base support mechanism of the present invention; Figure 4 This is a schematic diagram of the pressing mechanism of the present invention; Figure 5 This is a schematic diagram of the high-transparency middle cap layer of the present invention; Figure 6 This is a schematic diagram showing the position of the rod sleeve mechanism of the present invention; Figure 7 This is a schematic diagram of the radial multi-arm parallel test paper core of the present invention; Figure 8 This is a schematic diagram of the detection arm of the present invention; Figure 9 This is a schematic diagram of the finger-touch mechanism of the present invention; Figure 10 This is a schematic diagram of the blood drawing status of the central negative pressure blood storage and sampling module of the present invention; Figure 11 This is a schematic diagram of the initial state of the central negative pressure blood storage and sampling module of the present invention; Figure 12 This is a schematic diagram of the central negative pressure blood storage and sampling module of the present invention; Figure 13 This is a schematic diagram of the self-triggered blood collection module of the safety needle of the present invention.

[0021] In the diagram: 1. Base support mechanism; 101. Base support; 102. Central hole; 103. Side hole; 104. Hole cover; 105. Scale line; 2. Pressing mechanism; 201. Base plate; 202. Limiting post; 203. Locking post; 204. Locking groove; 205. Pressing plate; 206. Telescopic plate; 207. Connecting post; 208. Pressing post; 209. Support groove; 210. Support post; 3. Radial multi-arm parallel test paper core; 301. Tray; 302. Arc groove; 303. Arm plate; 304. Connecting pipe; 305. Valve pipe; 306. Valve plug; 307. First spring; 308. Tube block; 309. Paper groove; 310. Groove seal; 311. 1. Test strip; 4. Finger contact mechanism; 401. Main cylinder; 402. Finger ring; 403. Finger membrane; 404. Needle column; 405. Support bar; 5. Rod sleeve mechanism; 501. Rod sleeve; 502. Rail; 6. Safety needle self-triggered blood collection module; 601. Bottom key; 602. Ball receiving; 603. Support platform; 604. Vertical rod; 605. Needle seat; 606. Second spring; 607. Syringe; 608. Arrow tube; 7. Central negative pressure blood storage and sampling module; 701. Negative pressure blood storage device; 702. Preparatory membrane; 703. Anti-slip pad; 704. Tube; 8. High-transparency middle cover layer; 801. Cover body; 802. Positioning platform; 803. Positioning line; 9. High-transparency upper cover layer. Detailed Implementation

[0022] 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.

[0023] Example: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 12 , Figure 13 A safety needle self-triggered radial multi-index test strip device is a circular integrated snap-lock sealing structure, which includes a high-transparency top cover layer 9, a functional core layer, and a pressing bottom support layer from top to bottom, with medical silicone sealing rings between each layer; The core functional layer integrates a hidden safety needle self-triggered blood collection module 6, a central negative pressure blood storage and sampling module 7, and a radial multi-arm parallel test paper core 3; The pressing base layer includes a base mechanism 1 and a pressing mechanism 2; The concealed safety needle self-triggering blood collection module 6 is located in the center of the device and is linked with the pressing mechanism 2 of the pressing base layer to realize the self-triggering extension of the needle, retraction after piercing, and automatic sampling by generating negative pressure through the retraction action; The central negative pressure blood storage and sampling module 7 is connected to the hidden safety needle self-triggered blood collection module 6 and the radial multi-arm parallel test paper core 3 to realize quantitative storage of blood and radial uniform diversion; The radial multi-arm parallel test paper core 3 has eight independent test arms evenly and symmetrically distributed outward from the central blood collection area. Each test arm corresponds to a test index. The test lines and quality control lines of the test arms of the radial multi-arm parallel test paper core (3) are on the same ring reference line. A high-transparency middle cover layer 8 is movably fastened on the radially arranged multi-arm parallel test paper core 3; the high-transparency middle cover layer 8 includes a cover body 801, and the cover body 801 is set with a positioning line 803.

[0024] Please see Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 The base support mechanism 1 includes a base support 101. A circular central hole 102 is axially opened in the middle of the upper surface of the base support 101. A square side hole 103 is radially opened at the bottom of the central hole 102, penetrating the 101. A hole cover 104 is fastened to the outer end of the side hole 103. The upper surface edge of the base 101 is provided with scale lines 105 corresponding to the positioning lines 803 at equal intervals.

[0025] A pressing mechanism 2 is provided inside the side hole 103; the pressing mechanism 2 includes a base plate 201 that is fitted into the lower wall of the side hole 103, a limiting post 202 located on the axis of the central hole 102 is fixedly connected to the inner end of the upper surface of the base plate 201, and a locking post 203 is fixedly connected to the outer end of the upper surface of the base plate 201, and a locking groove 204 is provided on the locking post 203; A pressing plate 205 is movably hinged to the top of the base plate 201 via a pivot. A telescopic plate 206 is movably inserted into the inner end of the pressing plate 205. A connecting post 207 corresponding to the limiting post 202 is fixedly connected to the inner end of the upper surface of the telescopic plate 206. A pressing post 208 is fixedly connected to the outer end of the upper surface of 205. A support groove 209 is provided on the pressing post 208. A support post 210 is movably hinged to the support groove 209 through a torsion spring shaft. The end of the support post 210 is embedded in the locking groove 204 for locking.

[0026] The radial multi-arm parallel test paper core 3 includes a tray 301 with a fixed base 101. The central hole of the tray 301 is aligned with the central hole 102 and has a uniformly recessed arc groove 302. The upper surface of the tray 301 is fixedly connected to the arm plate 303 for embedding the detection arm, and the inner diameter of the central perforation of the arm plate 303 is larger than the inner diameter of the central perforation of the tray 301. The detection arm includes a connecting tube 304, which is fixedly embedded in the edge of the central perforation of the arm plate 303; The inner end of the connecting pipe 304 is fixedly connected to a valve pipe 305 with a constricted inner end. The inner end of the valve pipe 305 is filled with a conical valve plug 306. A first spring 307 is fixedly connected between the valve plug 306 and the connecting pipe 304. A tube block 308 is fixedly connected to the outer end of the connecting tube 304, a paper trough 309 is fixedly connected to the outer end of the tube block 308, and a trough seal 310 is fixedly connected to the outer end of the paper trough 309; a test paper 311 is placed inside the paper trough 309, and the inner end of the test paper 311 is inserted through the tube block 308.

[0027] A finger-touch mechanism 4 is provided above the radially arranged multi-arm parallel test paper core 3. The finger-touch mechanism 4 includes a main cylinder 401 fixed to the arm plate 303. The inner diameter of the main cylinder 401 is the same as the inner diameter of the arm plate 303. The main cylinder 401 is movably inserted into the upper wall of the cover body 801. A finger ring 402 is fixedly connected to the upper end face of the main tube 401, and a concave finger membrane 403 is fixedly connected to the inner ring of the finger ring 402. A needle post 404 is attached to the middle of the lower surface of the finger membrane 403, and a funnel-shaped needle hole is opened in the needle post 404; a support strip 405 attached to the finger membrane 403 is fixedly connected between the needle post 404 and the finger ring 402 at equal intervals.

[0028] The radially arranged multi-arm parallel test paper core 3 is provided with a rod sleeve mechanism 5. The rod sleeve mechanism 5 includes a rod sleeve 501 that is adapted to be inserted into the arc groove 302. A U-shaped rail 502 is fixedly connected to the inner side of the rod sleeve 501.

[0029] The safety needle self-triggered blood collection module 6 includes a bottom key 601 adapted to be located in the central hole 102. A ball receiving 602 that is ball-jointed with the connecting column 207 is fixedly connected to the middle of the lower surface of the bottom key 601. A support platform 603 for supporting the central negative pressure blood storage and sampling module 7 is fixedly connected to the middle of the upper surface of the bottom key 601. The upper surface edge of the bottom key 601 is evenly and uniformly fixedly connected to the upright 604 adapted to the insert sleeve 501. The upper end of the upright 604 is fixedly connected to the needle seat 605 adapted to the main cylinder 401. A second spring 606 wrapped around the upright 604 is fixedly connected between the needle seat 605 and the sleeve 501. A needle tube 607 is inserted through 605. The upper end of the needle tube 607 is inserted into the lower part of the needle hole of the needle column 404. The lower end of the needle tube 607 is fixedly connected to the arrow tube 608.

[0030] The central negative pressure blood storage and sampling module 7 is located within the rod sleeve mechanism 5. The central negative pressure blood storage and sampling module 7 includes a negative pressure blood reservoir 701 that is adapted to be clamped between the rails 502. Anti-slip pads 703 corresponding to the rails 502 are evenly embedded on the sides of the negative pressure blood reservoir 701. Initially, the negative pressure blood reservoir 701 is located at the lower part of the rails 502 and is in contact with the support platform 603. The upper end of the negative pressure blood storage device 701 is fixedly connected to the preparation membrane 702. Initially, the quiver 608 is attached to the preparation membrane 702. The lower side of the negative pressure blood storage device 701 is evenly connected with hoses 704 that intersect with the anti-slip pad 703. The hoses 704 are connected to the valve tube 305.

[0031] Please see Figure 1 , Figure 5 The upper wall of the cover 801 is provided with a positioning platform 802 corresponding to the detection arm; The high-transparency middle cover layer 8 and the high-transparency upper cover layer 9 are made of medical high-transparency PET plastic, and the surface is treated with anti-reflective and anti-fogging coating. The edge of the high-transparency top cover layer 9 is provided with anti-slip buckles for fastening the bottom support mechanism 1.

[0032] The working principle of this invention is as follows: Abandoning the traditional serial multi-test-line detection structure, the radial multi-arm parallel test paper core 3 features eight independent test arms evenly and symmetrically distributed outwards from the central blood collection area. Each test arm corresponds to a specific detection indicator. In conjunction with the central negative pressure blood storage and distribution module 7, blood samples in the negative pressure blood storage unit 701 are synchronously and evenly distributed from the center to each test arm through the tubing 704. Each test arm can obtain a sufficient and equal amount of sample, completely solving the problems of sample consumption, weak signal, and false negatives at the distal test lines in the serial structure. Each test arm is independent and unconnected, effectively avoiding cross-reactions between different detection indicators and ensuring detection specificity. At the same time, the standardized ring distribution of test lines and quality control lines of all test arms ensures stable color intensity, further improving the consistency and accuracy of test results and significantly enhancing the effectiveness of multi-indicator screening.

[0033] The device's centrally integrated concealed safety needle self-triggered blood collection module 6 first removes the high-transparency top cover 9 from the base support mechanism 1 via an anti-slip buckle. The patient places their finger on the finger membrane 403, removes the hole cover 104 at the outer end of the side hole 103, and uses the pressing mechanism 2 to first rotate the support column 210 out of the locking groove 204. Then, the pressing column 208 is pressed down, and the bottom key 601 is pushed up along the central hole 102 via the connecting column 207, thereby driving the needle tube 607 to move upward, piercing the finger membrane 403 and puncturing the patient's finger. Then, the pressing mechanism 2 is released, and the needle tube 607 is pulled back under the action of the second spring 606, realizing the process of extending, piercing, and retracting immediately. There is no needle exposed throughout the process, which avoids safety hazards such as needlestick injury and cross-contamination from the source and improves the safety of blood collection.

[0034] Simultaneously, during the upward movement of the bottom key 601, the support platform 603 pushes the negative pressure blood reservoir 701 upward along the rail 502. With the anti-slip pad 703 in place, when the needle 607 retracts, the arrow tube 608 punctures the preparation membrane 702. The retraction action of the needle 607 connects the negative pressure blood reservoir 701 to generate a gentle negative pressure, achieving automatic sample aspiration without the need for manual squeezing of the fingers. The blood collection volume is precisely controlled by the negative pressure blood reservoir 701, which avoids detection failure caused by insufficient blood collection and eliminates the discomfort caused by excessive blood collection. The blood collection process is safe, painless, and controllable, suitable for all users, including the elderly, children, and people who are afraid of needles, thus improving the adaptability of blood collection.

[0035] The detection arm of the connecting tube 704 is equipped with a valve tube 305 at the connection end. Initially, under the negative pressure control in the negative pressure blood reservoir 701, the valve plug 306 blocks the valve tube 305. After the lancet 608 punctures the membrane 702 and connects to the negative pressure blood reservoir 701, when the blood volume in the negative pressure blood reservoir 701 gradually reaches the upper limit of its volume, the internal and external air pressure tends to be balanced, and the sampling action automatically stops. Then, the valve plug 306 moves under the action of the first spring 307, opens the valve tube 305, and the collected blood soaks into the stain 311 to react, improving the detection synchronization.

[0036] The device adopts an integrated design, highly integrating blood collection, sample dispensing, and testing functions. After pressing to collect blood and allowing it to stand for color development, the mobile phone is inserted into the positioning platform 802. The cover 801 is rotated so that the positioning line 803 is aligned with the scale line 105. Then the mobile phone automatically aligns with the testing arm to take a picture. No external blood collection tools or pipetting equipment are required, and no professional training is needed. A single person can complete the process independently. The safety needle self-triggered blood collection module 6 is triggered by a single button through the pressing mechanism 2, eliminating the cumbersome steps of traditional blood collection such as needle pricking, squeezing, and dripping. This greatly reduces the threshold for home use, allowing multi-antigen screening such as tumor markers and infectious disease antibodies to break free from dependence on professional medical personnel, realize home self-testing, and simplify the operation process.

[0037] The device structure is precisely matched with the intelligent interpretation system of a smartphone APP. The positioning line 803 and scale line 105 of the high-transparency middle cover layer 8 provide a physical reference for the algorithm. The positioning stage 802 corresponds to the mobile phone and the detection arm in a standardized manner to ensure the accuracy of image positioning and strip segmentation. The APP can automatically complete color intensity analysis, positive and negative determination, and quality control validity verification. It can also realize the risk classification of positive combinations according to preset rules, replacing the tedious process of manual interpretation. This not only avoids the subjective error of manual interpretation, but also allows non-professional users to quickly understand the test results and improve the clinical reference value of the test results.

[0038] 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 radial multi-index test strip device with a self-triggered safety needle, characterized in that: It is a circular integrated snap-on sealing structure, which includes, from top to bottom, a high-transparency top cover layer (9), a functional core layer, and a pressing bottom support layer; The core functional layer integrates a hidden safety needle self-triggered blood collection module (6), a central negative pressure blood storage and sampling module (7), and a radial multi-arm parallel test paper core (3). The pressing base layer includes a base mechanism (1) and a pressing mechanism (2). The hidden safety needle self-triggering blood collection module (6) is located in the center of the device and is linked with the pressing mechanism (2) of the pressing base layer to realize the self-triggering extension of the needle, the retraction after piercing, and the generation of negative pressure for automatic sampling through the retraction action; The central negative pressure blood storage and sampling module (7) is connected to the hidden safety needle self-triggered blood collection module (6) and the radial multi-arm parallel test paper core (3) to realize quantitative storage of blood and radial uniform diversion; The radial multi-arm parallel test paper core (3) has eight independent test arms evenly and symmetrically distributed outward from the central blood collection area, with each test arm corresponding to a test index; the test lines and quality control lines of the test arms of the radial multi-arm parallel test paper core (3) are on the same circular reference line; The radial multi-arm parallel test paper core (3) is movably fastened with a high-transparency middle cover layer (8); the high-transparency middle cover layer (8) includes a cover body (801), and the cover body (801) is set with a positioning line (803).

2. The radial multi-index test strip device with self-triggered safety needle according to claim 1, characterized in that: The base support mechanism (1) includes a base support (101). A circular central hole (102) is axially opened in the middle of the upper surface of the base support (101). A square side hole (103) is radially opened at the bottom of the central hole (102) and passes through the 101. A hole cover (104) is fastened to the outer end of the side hole (103). The upper surface edge of the base (101) is provided with scale lines (105) corresponding to the positioning lines (803) at equal intervals.

3. The radial multi-index test strip device with self-triggered safety needle according to claim 2, characterized in that: A pressing mechanism (2) is provided inside the side hole (103); the pressing mechanism (2) includes a base plate (201) that fits into the lower wall of the side hole (103), a limiting post (202) located on the axis of the central hole (102) is fixedly connected to the inner end of the upper surface of the base plate (201), and a locking post (203) is fixedly connected to the outer end of the upper surface of the base plate (201), and a locking groove (204) is provided on the locking post (203); A pressing plate (205) is movably hinged to the top of the base plate (201) via a rotating shaft. A telescopic plate (206) is movably inserted into the inner end of the pressing plate (205). A connecting column (207) corresponding to the limiting column (202) is fixedly connected to the inner end of the upper surface of the telescopic plate (206). A pressing column (208) is fixedly connected to the outer end of the upper surface of the 205. A support groove (209) is provided on the pressing column (208). A support column (210) is movably hinged to the support groove (209) through a torsion spring shaft. The end of the support column (210) is embedded in the locking groove (204) for locking.

4. The radial multi-index test strip device with self-triggered safety needle according to claim 3, characterized in that: The radial multi-arm parallel test paper core (3) includes a tray (301) with a fixed base (101), the central hole of the tray (301) is aligned with the central hole (102) and has a uniformly recessed arc groove (302). The upper surface of the tray (301) is fixedly connected to the arm plate (303) for embedding the detection arm. The detection arm includes a connecting tube (304), which is fixedly embedded in the edge of the central perforation of the arm plate (303); The inner end of the connecting pipe (304) is fixedly connected to a valve pipe (305) with a constricted inner end. The inner end of the valve pipe (305) is filled with a conical valve plug (306). A first spring (307) is fixedly connected between the valve plug (306) and the connecting pipe (304). The outer end of the connecting tube (304) is fixedly connected to a tube block (308), the outer end of the tube block (308) is fixedly connected to a paper trough (309), and the outer end of the paper trough (309) is fixedly connected to a trough seal (310); a test paper (311) is placed inside the paper trough (309), and the inner end of the test paper (311) is inserted through the tube block (308).

5. The radial multi-index test strip device with self-triggered safety needle according to claim 4, characterized in that: A finger-touch mechanism (4) is provided above the radial multi-arm parallel test paper core (3). The finger-touch mechanism (4) includes a main cylinder (401) with a fixed arm plate (303). The inner diameter of the main cylinder (401) is the same as the inner diameter of the arm plate (303). The main cylinder (401) is movably inserted into the upper wall of the cover (801). A finger ring (402) is fixedly connected to the upper end face of the main cylinder (401), and a concave finger membrane (403) is fixedly connected to the inner ring of the finger ring (402). A needle post (404) is attached to the middle of the lower surface of the finger membrane (403), and a funnel-shaped needle hole is opened in the needle post (404); a support strip (405) attached to the finger membrane (403) is fixedly connected between the needle post (404) and the finger ring (402) at equal intervals.

6. The radial multi-index test strip device with self-triggered safety needle according to claim 5, characterized in that: The radial multi-arm parallel test paper core (3) is provided with a rod sleeve mechanism (5), the rod sleeve mechanism (5) includes a rod sleeve (501) adapted to be inserted into the arc groove (302), and a U-shaped rail (502) is fixedly connected to the inner side of the rod sleeve (501).

7. The radial multi-index test strip device with self-triggered safety needle according to claim 6, characterized in that: The safety needle self-triggered blood collection module (6) includes a bottom key (601) adapted to be located in the central hole (102). The bottom key (601) has a ball (602) fixedly connected to the middle of its lower surface and ball joint connected to the connecting column (207). The bottom key (601) has a support platform (603) fixedly connected to the middle of its upper surface for supporting the central negative pressure blood storage and sampling module (7). The upper surface edge of the bottom key (601) is uniformly and equidistantly connected to a vertical rod (604) adapted to the insert sleeve (501). The upper end of the vertical rod (604) is fixedly connected to a needle seat (605) adapted to the main cylinder (401). A second spring (606) wrapped around the vertical rod (604) is fixedly connected between the needle seat (605) and the sleeve (501). A needle tube (607) is inserted through the 605. The upper end of the needle tube (607) is inserted into the lower part of the needle hole of the needle column (404). The lower end of the needle tube (607) is fixedly connected to the arrow tube (608).

8. The radial multi-index test strip device with self-triggered safety needle according to claim 7, characterized in that: The central negative pressure blood storage and sampling module (7) is located inside the rod sleeve mechanism (5). The central negative pressure blood storage and sampling module (7) includes a negative pressure blood storage device (701) adapted to be clamped between the rails (502). The negative pressure blood storage device (701) has anti-slip pads (703) of the corresponding rails (502) evenly embedded on its side. The upper end of the negative pressure blood storage device (701) is fixedly connected to a membrane (702). The lower side of the negative pressure blood reservoir (701) is uniformly connected to a flexible tube (704) that intersects with the anti-slip pad (703), and the flexible tube (704) is connected to the valve tube (305).

9. The radial multi-index test strip device with self-triggered safety needle according to claim 1, characterized in that: The upper wall of the cover (801) is provided with a positioning platform (802) corresponding to the detection arm. The edge of the high-transparency top cover (9) is provided with anti-slip buckles for fastening the bottom support mechanism (1).

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