Blood detection sampling collector

By combining a limiting frame, compression spring, movable semi-ring, and diaphragm, the contamination problem caused by needle exposure in the blood testing sampling collector is solved, and air isolation of the needle output hole is achieved, ensuring the purity of the blood and improving the accuracy of the test results.

CN224179719UActive Publication Date: 2026-05-01WEIHAI SAIWEI MEDICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEIHAI SAIWEI MEDICAL TECH CO LTD
Filing Date
2025-05-29
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing blood sampling collectors have gaps in the plastic cap after collection, causing the needle to come into contact with air, resulting in blood contamination and affecting test results.

Method used

A blood testing sampling collector was designed. Through the combination of a limiting frame, a compression spring, a movable semi-ring, a limiting sleeve, and a diaphragm, air isolation is achieved at the needle output hole to avoid long-term exposure of the needle. The design of limiting blocks and stops ensures connection stability and prevents the limiting frame from moving.

Benefits of technology

This effectively avoids contamination of the blood inside the body due to prolonged needle exposure, ensuring the purity of the collected blood and improving the accuracy of test results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of blood detection sampling devices, and particularly relates to a blood detection sampling collector which comprises a main body and two first clamping grooves, a first connecting sleeve and a second connecting sleeve are inserted into the two first clamping grooves respectively, first clamping blocks are clamped with the interiors of the first clamping grooves, and second clamping blocks are clamped with the interiors of the second clamping grooves respectively. Limiting sleeves are clamped in the two limiting frames, rectangular grooves are formed in the bottoms of the two limiting frames, compression springs are fixedly connected to the inner tops of the limiting grooves, movable semi-rings are fixedly connected to the bottoms of the compression springs, fixing rings are fixedly connected to the inner side walls of the limiting sleeves, and diaphragms are fixedly connected to the interiors of the fixing rings. By arranging the limiting frame, the compression spring, the movable semi-ring, the limiting sleeve and the diaphragm, air isolation of a needle output hole is achieved, and pollution to blood in the main body caused by long-term exposure of the needle is avoided; and by arranging a first stop block and a second stop block, the two limiting frames can be conveniently limited by the limiting block.
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Description

A blood testing sampling collector Technical Field

[0001] This utility model belongs to the field of blood testing technology, and more specifically, it relates to a blood testing sampling and collection device. Background Technology

[0002] Blood tests are one of the most basic diagnostic methods. They involve analyzing blood to determine abnormalities such as anemia, cholesterol, and diabetes. Blood collection requires the use of a blood sampling device.

[0003] Existing blood sampling collectors cover the needle with a plastic cap after collection. However, gaps remain in the plastic cap during connection, causing prolonged contact between the needle and air, which can contaminate the collected blood and affect the test results. Summary of the Invention

[0004] The purpose of this invention is to provide a blood testing sampling collector that isolates the air at the needle output hole, thus preventing long-term exposure of the needle from contaminating the blood inside the main body.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a blood testing sampling collector is provided, comprising a main body, wherein a first slot is formed on the circumferential surface of the main body, the number of first slots being two and symmetrically distributed from left to right, a first connecting sleeve and a second connecting sleeve being respectively inserted into the two first slots, a first locking block being fixedly connected to the inner sidewall of each of the first and second connecting sleeves, and the first locking block engaging with the inside of the first slot, a limiting frame being fixedly connected to the bottom of each of the first and second connecting sleeves, a limiting sleeve engaging inside the two limiting frames, a rectangular groove being formed at the bottom of each of the two limiting frames, a limiting groove being formed inside the limiting frame, a compression spring being fixedly connected to the top of the limiting groove, a movable semi-ring being fixedly connected to the bottom of the compression spring, a limiting sleeve being movably connected inside the limiting groove, a needle being installed at the bottom of the main body, a fixing ring being fixedly connected to the inner sidewall of the limiting sleeve, a diaphragm being fixedly connected inside the fixing ring, and the needle penetrating the diaphragm.

[0006] Optionally, a second slot is provided on the side surface of the first connecting sleeve, and a second block is fixedly connected to one end of the second connecting sleeve near the second slot, and the second block engages with the inside of the second slot.

[0007] Optionally, the inner bottom of the limiting frame is provided with a protruding ring, the end of the limiting sleeve is provided with a limiting block, the bottom of the limiting block is provided with a groove, and the protruding ring engages with the inside of the groove.

[0008] Optionally, a first stop is fixedly connected to the bottom of the first connecting sleeve, and a second stop is fixedly connected to the circumferential surface of the limiting sleeve, with the second stop fitting against the first stop.

[0009] Optionally, the bottom of the limiting sleeve is provided with a collection groove, and the end of the needle away from the main body is located inside the collection groove.

[0010] Optionally, the number of compression springs is multiple, and they are distributed in a semi-circular shape at the top of the movable semi-ring.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This utility model, by setting up a limiting frame, a compression spring, a movable half-ring, a limiting sleeve, and a diaphragm, allows the main body to quickly limit the first connecting sleeve and the second connecting sleeve after the main body has finished collecting blood using a needle. The first locking block is then inserted into the first locking slot on both sides, quickly limiting the first connecting sleeve and the second connecting sleeve. The limiting block at the end of the limiting sleeve is then pushed into the limiting groove from the bottom rectangular groove to compress the movable half-ring, causing the movable half-ring to compress the compression spring. The limiting sleeve is then rotated, causing the limiting block to rotate to the connection point of the two limiting frames, thus limiting the two limiting frames and preventing them from moving outwards, which would cause the first locking block on the inner sidewall of the first connecting sleeve and the second connecting sleeve to separate from the first locking slot. Furthermore, when the limiting sleeve is connected to the limiting frame, the needle penetrates the diaphragm, thus isolating the needle output hole from air and preventing long-term exposure of the needle from contaminating the blood inside the main body.

[0013] 2. This utility model sets a first stop and a second stop. When the limiting sleeve rotates clockwise, it drives the second stop to rotate synchronously until the second stop contacts the first stop. At this time, the limiting block is located at the connection of the two limiting frames, which makes it easy for the limiting block to limit the two limiting frames. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 is a first-view exploded view of a partial structure of this utility model;

[0017] Figure 3 is a second-view exploded view of a partial structure of this utility model;

[0018] Figure 4 is an enlarged structural schematic diagram of point A in Figure 3 of this utility model;

[0019] Figure 5 is an enlarged structural schematic diagram of point B in Figure 3 of this utility model.

[0020] In the diagram: 1. Main body; 2. First slot; 3. First connecting sleeve; 4. Second connecting sleeve; 5. First locking block; 6. Second slot; 7. Second locking block; 8. Limiting frame; 9. Compression spring; 10. Movable semi-ring; 11. Rectangular groove; 12. Limiting groove; 13. Limiting sleeve; 14. Groove; 15. First stop block; 16. Second stop block; 17. Protruding ring; 18. Needle; 19. Fixing ring; 20. Diaphragm; 21. Collection groove; 22. Limiting block. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] Referring to Figures 1-5, a blood testing sampling collector includes a main body 1. Two first slots 2 are formed on the circumferential surface of the main body 1 and are symmetrically distributed. A first connecting sleeve 3 and a second connecting sleeve 4 are respectively inserted into the interior of the two first slots 2. A first locking block 5 is fixedly connected to the inner sidewall of both the first connecting sleeve 3 and the second connecting sleeve 4, and the first locking block 5 engages with the interior of the first slot 2. A limiting frame 8 is fixedly connected to the bottom of both the first connecting sleeve 3 and the second connecting sleeve 4. The internal locking sleeve 13 of the 8 is provided. The bottom of both limiting frames 8 is provided with rectangular grooves 11. The internal limiting frame 8 is provided with limiting grooves 12. The top of the inner limit groove 12 is fixedly connected with a compression spring 9. The bottom of the compression spring 9 is fixedly connected with a movable half ring 10. The internal limiting groove 12 is movably connected with the limiting sleeve 13. The bottom of the main body 1 is equipped with a needle 18. The inner side wall of the limiting sleeve 13 is fixedly connected with a fixing ring 19. The internal fixed ring 19 is fixedly connected with a diaphragm 20, and the needle 18 penetrates the diaphragm 20. After the main body 1 has finished collecting blood using the needle 18, the first locking block 5 is inserted into the first locking slot 2 on both sides, thereby quickly limiting the first connecting sleeve 3 and the second connecting sleeve 4. Then, the limiting block 22 at the end of the limiting sleeve 13 is pushed into the limiting slot 12 from the bottom rectangular slot 11 to squeeze the movable half ring 10, causing the movable half ring 10 to compress the compression spring 9. Then, the limiting sleeve 13 is rotated, causing the limiting block 22 to rotate to the connection point of the two limiting frames 8, thereby limiting the two limiting frames 8 and preventing the two limiting frames 8 from moving outward, causing the first locking block 5 on the inner side wall of the first connecting sleeve 3 and the second connecting sleeve 4 to separate from the first locking slot 2. When the limiting sleeve 13 is connected to the limiting frame 8, the needle 18 penetrates the diaphragm 20, thereby isolating the air at the output hole of the needle 18 and preventing the needle 18 from being exposed for a long time and causing contamination of the blood inside the main body 1.

[0023] A second slot 6 is provided on the side surface of the first connecting sleeve 3. A second locking block 7 is fixedly connected to one end of the second connecting sleeve 4 near the second slot 6, and the second locking block 7 engages with the interior of the second slot 6. The engagement of the second locking block 7 with the second slot 6 facilitates the connection of the first connecting sleeve 3 and the second connecting sleeve 4 together.

[0024] The inner bottom of the limiting frame 8 is provided with a protruding ring 17, and the end of the limiting sleeve 13 is provided with a limiting block 22. The bottom of the limiting block 22 is provided with a groove 14, and the protruding ring 17 is engaged with the inside of the groove 14. Since the groove 14 is annular like the protruding ring 17, the groove 14 is engaged with the protruding ring 17 at the connection of the two limiting frames 8, thereby enhancing the stability of the connection between the two limiting frames 8.

[0025] A first stop 15 is fixedly connected to the bottom of the first connecting sleeve 3, and a second stop 16 is fixedly connected to the circumferential surface of the limiting sleeve 13, with the second stop 16 fitting against the first stop 15. When the limiting sleeve 13 rotates clockwise, it drives the second stop 16 to rotate synchronously until the second stop 16 contacts the first stop 15. At this time, the limiting block 22 is located at the connection point of the two limiting frames 8, which facilitates the limiting block 22 to limit the two limiting frames 8.

[0026] The bottom of the limiting sleeve 13 has a collection groove 21, and the end of the needle 18 away from the main body 1 is located inside the collection groove 21. The collection groove 21 can be used to collect blood that has been accidentally spilled.

[0027] There are multiple compression springs 9, which are arranged in a semi-circle at the top of the movable half-ring 10. The multiple compression springs 9 can enhance the thrust on the movable half-ring 10.

[0028] Working principle: During blood sampling and collection, blood is drawn through the main body 1 and the needle 18. After the blood collection is completed, the first locking block 5 is inserted into the first locking slot 2 on both sides, thereby quickly limiting the first connecting sleeve 3 and the second connecting sleeve 4. Then, the limiting block 22 at the end of the limiting sleeve 13 is pushed into the limiting slot 12 from the bottom rectangular slot 11 to squeeze the movable half ring 10, so that the movable half ring 10 compresses the compression spring 9. Then, the limiting sleeve 13 is rotated so that the limiting block 22 rotates to the connection point of the two limiting frames 8, thereby limiting the two limiting frames 8 and preventing the two limiting frames 8 from moving outward, causing the first locking block 5 on the inner side wall of the first connecting sleeve 3 and the second connecting sleeve 4 to separate from the first locking slot 2. When the limiting sleeve 13 is connected to the limiting frame 8, the needle 18 penetrates the diaphragm 20, thereby isolating the air at the output hole of the needle 18 and preventing the needle 18 from being exposed for a long time and causing contamination of the blood inside the main body 1.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A blood testing sampling collector, comprising a main body (1), characterized in that: The main body (1) has two first slots (2) on its circumferential surface, which are symmetrically distributed. A first connecting sleeve (3) and a second connecting sleeve (4) are respectively inserted into the two first slots (2). A first locking block (5) is fixedly connected to the inner sidewall of both the first connecting sleeve (3) and the second connecting sleeve (4), and the first locking block (5) engages with the inside of the first slot (2). A limiting frame (8) is fixedly connected to the bottom of both the first connecting sleeve (3) and the second connecting sleeve (4). A limiting sleeve (13) is engaged inside the two limiting frames (8). The bottom of the limiting frame (8) is provided with a rectangular groove (11). The inside of the limiting frame (8) is provided with a limiting groove (12). A compression spring (9) is fixedly connected to the top of the limiting groove (12). A movable half ring (10) is fixedly connected to the bottom of the compression spring (9). A limiting sleeve (13) is movably connected inside the limiting groove (12). A needle (18) is installed at the bottom of the main body (1). A fixing ring (19) is fixedly connected to the inner side wall of the limiting sleeve (13). A diaphragm (20) is fixedly connected inside the fixing ring (19), and the needle (18) penetrates the diaphragm (20).

2. The blood testing sampling collector as described in claim 1, characterized in that: The first connecting sleeve (3) has a second slot (6) on its side surface. The second connecting sleeve (4) is fixedly connected to a second block (7) at one end near the second slot (6), and the second block (7) engages with the inside of the second slot (6).

3. A blood testing sampling collector as described in claim 2, characterized in that: The inner bottom of the limiting frame (8) is provided with a protruding ring (17), and the end of the limiting sleeve (13) is provided with a limiting block (22). The bottom of the limiting block (22) is provided with a groove (14), and the protruding ring (17) engages with the inside of the groove (14).

4. A blood testing sampling collector as described in claim 3, characterized in that: The bottom of the first connecting sleeve (3) is fixedly connected to a first stop (15), and the circumferential surface of the limiting sleeve (13) is fixedly connected to a second stop (16), and the second stop (16) is in contact with the first stop (15).

5. A blood testing sampling collector as described in claim 4, characterized in that: The bottom of the limiting sleeve (13) is provided with a collection groove (21), and the end of the needle (18) away from the main body (1) is located inside the collection groove (21).

6. A blood testing sampling collector as described in claim 1, characterized in that: The compression springs (9) are numerous and are distributed in a semi-circular pattern on the top of the movable semi-ring (10).