Disposable self-retraction type vein safety blood taking needle

Abstract

The utility model provides a disposable self-retraction type vein safety blood taking needle, which relates to the technical field of blood taking needles and comprises a retraction tube, invisible grooves are arranged on two sides inside the retraction tube, telescopic rods are fixedly connected inside the invisible grooves, an output end of each telescopic rod is fixedly connected with a connecting block, and the outer surface of each connecting block is fixedly connected with a blood taking tube. When the blood taking needle body is not used, the blood taking needle body is stored in the sliding groove in the retraction tube, when the blood taking needle body needs to be used, only the telescopic rod needs to be started, the connecting block is driven by the telescopic rod to slide, and the blood taking tube is driven by the connecting block of the same specification to move. The mounting block is driven by the blood collection tube to move, the blood collection needle body is driven by the mounting block to move together, blood collection work can be conducted by moving the blood collection needle body out of the needle head cover, the needle head can be conveniently and effectively protected, contamination of external bacteria is avoided, and bad consequences can be achieved when the needle head enters a human body.

Description

Technical Field

[0001] The utility model relates to the technical field of blood collection needles, in particular to a disposable self-retractable venous safety blood collection needle. Background Art

[0002] A venous safety lancet is a specialized device used in medical and laboratory blood collection procedures. It's designed to automatically retract the needle after blood collection, reducing the risk of accidental punctures for medical staff and patients. It's typically made of stainless steel or special plastic, with sufficient hardness and sharpness to penetrate the skin and veins. The disposable automatic retraction design means the needle automatically retracts into the protective cover or device after blood collection is complete, avoiding external contact and reducing the risk of infection. The needle is connected to a blood collection tube or device to ensure blood flows smoothly into the collection container, which is held by medical staff. The design makes operation more stable and comfortable.

[0003] However, the existing blood collection needles are all of an integrated type, which is not convenient for effective protection of the needle. The needle is always exposed to the outside world and is easily contaminated by bacteria, which will have adverse consequences if it enters the human body. Therefore, a disposable self-retractable venous safety blood collection needle is proposed to address the above shortcomings. Utility Model Content

[0004] The utility model aims to solve the problem that it is inconvenient to effectively protect the needle, and proposes a disposable self-retractable venous safety blood collection needle.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a disposable self-retracting venous safety blood collection needle, comprising a retraction tube, invisible grooves are provided on both sides of the interior of the retraction tube, a telescopic rod is fixedly connected to the interior of the invisible groove, the output end of the telescopic rod is fixedly connected to a connecting block, the outer surface of the connecting block is fixedly connected to a blood collection tube, one end of the blood collection tube is fixedly connected to a mounting block, and the other end of the mounting block is fixedly connected to the blood collection needle body.

[0006] Preferably, a slide groove is provided inside the retraction tube, a spring is fixedly connected inside the slide groove, the other end of the spring is fixedly connected to a fixed block, and the inside of the fixed block is fixedly connected to the other end of the blood collection tube.

[0007] Preferably, the outer surface of the retraction tube is fixedly connected to a needle cover, and the interior of the needle cover is fixedly connected to a sterilization lamp.

[0008] Preferably, a hose is fixedly connected to the outer surface of the blood collection tube, and a retraction tube is inserted into the outer surface of the hose.

[0009] Preferably, limiting grooves are provided on both sides of the interior of the retractable tube, and the interior of the limiting grooves is slidably connected to the outer surface of the connecting block.

[0010] Preferably, the outer surface of the fixing block is slidably connected to the inside of the sliding groove.

[0011] Compared with the prior art, the advantages and positive effects of the present invention are:

[0012] 1. In the utility model, when the lancet body is not in use, the lancet body is stored inside the slide groove in the retraction tube. When it is needed, it is only necessary to start the telescopic rod, and the telescopic rod drives the connecting block to slide, and the connecting block of the same specification drives the blood collection tube to move, and the blood collection tube drives the mounting block to move, and the mounting block drives the lancet body to move together, and the blood collection work can be carried out by moving the lancet body out of the needle cover, so that the needle can be effectively protected to avoid contamination by external bacteria, which will cause adverse consequences if it enters the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the disposable self-retractable venous safety blood collection needle proposed in the utility model;

[0014] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the blood collection tube of the disposable self-retractable venous safety blood collection needle proposed in the utility model;

[0015] Figure 3 The utility model provides a schematic diagram of the internal three-dimensional structure of the needle cover of the disposable self-retractable venous safety blood collection needle.

[0016] Legend: 1. Retraction tube; 2. Invisible slot; 3. Telescopic rod; 4. Connecting block; 5. Blood collection tube; 6. Mounting block; 7. Blood collection needle body; 8. Slide; 9. Spring; 10. Fixing block; 11. Needle cover; 12. Sterilization lamp; 13. Hose; 14. Limiting slot. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0018] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0019] Example 1

[0020] like Figure 1-Figure 3As shown, the utility model provides a technical solution: a disposable self-retractable venous safety blood collection needle, comprising a retraction tube 1, invisible grooves 2 are provided on both sides of the interior of the retraction tube 1, a telescopic rod 3 is fixedly connected to the interior of the invisible groove 2, the output end of the telescopic rod 3 is fixedly connected to a connecting block 4, the outer surface of the connecting block 4 is fixedly connected to a blood collection tube 5, one end of the blood collection tube 5 is fixedly connected to a mounting block 6, and the other end of the mounting block 6 is fixedly connected to a blood collection needle body 7, a slide groove 8 is provided inside the retraction tube 1, a spring 9 is fixedly connected to the interior of the slide groove 8, the other end of the spring 9 is fixedly connected to a fixed block 10, the interior of the fixed block 10 is fixedly connected to the other end of the blood collection tube 5, limiting grooves 14 are provided on both sides of the interior of the retraction tube 1, the interior of the limiting groove 14 is slidably connected to the outer surface of the connecting block 4, and the outer surface of the fixed block 10 is slidably connected to the interior of the slide groove 8.

[0021] In this embodiment, when the blood collection needle body 7 is not in use, the blood collection needle body 7 is stored inside the slide groove 8 in the retraction tube 1. When it is needed, it is only necessary to start the telescopic rod 3, and the telescopic rod 3 drives the connecting block 4 to slide, and the connecting block 4 of the same specification drives the blood collection tube 5 to move, and the blood collection tube 5 drives the mounting block 6 to move, and the mounting block 6 drives the blood collection needle body 7 to move together. The blood collection work can be carried out by moving the blood collection needle body 7 out of the needle cover 11. The invisible groove 2 is opened through the retraction tube 1, and the telescopic rod 3 is fixed by the invisible groove 2. The spring 9 is fixed by the slide groove 8, and the sliding of the fixed block 10 is assisted by the spring 9. The movement of the blood collection tube 5 is stabilized by the fixed block 10, and the sliding of the connecting block 4 is facilitated by the limiting groove 14.

[0022] Example 2

[0023] like Figure 1-Figure 3 As shown, the outer surface of the retraction tube 1 is fixedly connected to the needle cover 11, the interior of the needle cover 11 is fixedly connected to the sterilization lamp 12, the outer surface of the blood collection tube 5 is fixedly connected to the hose 13, and the outer surface of the hose 13 is interspersed with the interior of the retraction tube 1.

[0024] In this embodiment, a sterilization lamp 12 is fixed through the needle cover 11 , and the sterilization lamp 12 is used to sterilize the blood collection needle body 7 in all directions before blood collection, and the blood is output through the hose 13 .

[0025] The working principle of this embodiment is as follows: when the blood collection needle body 7 is not in use, the blood collection needle body 7 is stored in the slide groove 8 in the retraction tube 1. When it is needed, it is only necessary to start the telescopic rod 3, and the telescopic rod 3 drives the connecting block 4 to slide. The connecting block 4 of the same specification drives the blood collection tube 5 to move, and the blood collection tube 5 drives the mounting block 6 to move, and the mounting block 6 drives the blood collection needle body 7 to move together. The blood collection needle body 7 is moved out of the needle cover 11 to carry out blood collection work, which facilitates effective protection of the needle to avoid contamination by external bacteria and adverse consequences of entering the human body. The retraction tube 1 is provided with an invisible groove 2, the invisible groove 2 is used to fix the telescopic rod 3, the slide groove 8 is used to fix the spring 9, the spring 9 assists the sliding of the fixing block 10, and the fixing block 10 stabilizes the movement of the blood collection tube 5. The sterilization lamp 12 is fixed by the needle cover 11, and the sterilization lamp 12 is used to sterilize the blood collection needle body 7 in all directions before blood collection. Blood is output through the hose 13, and the sliding of the connecting block 4 is facilitated by the limiting groove 14.

[0026] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. Disposable self-retractable venous safety blood collection needle, characterized by: The invention comprises a retractable tube (1), wherein both sides of the interior of the retractable tube (1) are provided with invisible grooves (2), the interior of the invisible groove (2) is fixedly connected to a telescopic rod (3), the output end of the telescopic rod (3) is fixedly connected to a connecting block (4), the outer surface of the connecting block (4) is fixedly connected to a blood collection tube (5), one end of the blood collection tube (5) is fixedly connected to a mounting block (6), and the other end of the mounting block (6) is fixedly connected to a blood collection needle body (7).

2. The disposable self-retractable venous safety blood collection needle according to claim 1, characterized in that: A slide groove (8) is provided inside the retraction tube (1), a spring (9) is fixedly connected inside the slide groove (8), the other end of the spring (9) is fixedly connected to a fixed block (10), and the interior of the fixed block (10) is fixedly connected to the other end of the blood collection tube (5).

3. The disposable self-retractable venous safety blood collection needle according to claim 1, characterized in that: The outer surface of the retraction tube (1) is fixedly connected to a needle cover (11), and the interior of the needle cover (11) is fixedly connected to a sterilization lamp (12).

4. The disposable self-retractable venous safety blood collection needle according to claim 1, characterized in that: The outer surface of the blood collection tube (5) is fixedly connected to a hose (13), and the inner portion of the retraction tube (1) is inserted through the outer surface of the hose (13).

5. The disposable self-retractable venous safety blood collection needle according to claim 1, characterized in that: Limiting grooves (14) are provided on both sides of the interior of the retractable tube (1), and the interior of the limiting grooves (14) is slidably connected to the outer surface of the connecting block (4).

6. The disposable self-retractable venous safety blood collection needle according to claim 2, characterized in that: The outer surface of the fixed block (10) is slidably connected to the inside of the sliding groove (8).

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