Anti-stabbing blood taking needle

Abstract

The utility model discloses an anti-stabbing blood taking needle which comprises a protective tube and a needle head body. A protective frustum is arranged at one end of the protective tube, and a needle hole is formed in the axis of the protective frustum; the needle head body is composed of a needle tube and a pushing block, the needle tube is arranged in the needle hole and slides along the needle hole, the pushing block is fixedly connected with the needle tube, and a connecting groove is formed in the side, away from the needle tube, of the pushing block and used for being connected with a blood collector. The side wall of the protection tube is provided with an axially-arranged sliding groove, the side wall of the pushing block is further provided with a shifting block, the shifting block is located in the sliding groove, and the shifting block can drive the pushing block and the needle tube to move so that the needle tube can protrude out of the protection frustum or be contained in the protection frustum. The needle head body is protected through the protection tube, the pushing block and the needle tube can be driven by the shifting block to move together after blood collection is completed, so that the needle head is protected, the needle is prevented from being punctured, and then the whole device is thrown into an edge tool box.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and more specifically, to a puncture-resistant blood collection needle. Background Technology

[0002] Venous blood collection is a sterile procedure, and clinical practice requires one needle and one needle holder per person. However, due to the large number of patients requiring blood collection, the number of needle holders is limited due to repeated sterilization and cleaning, and obtaining consumables also takes time. Clinically, most blood collection devices have separate needles and needle holders, or are similar to scalp vein needles, leaving the needle tip exposed to air after blood collection, increasing the risk of needlestick injury. Disposing of the needle tip in a sharps container after collection is difficult, and recaping it carries the risk of needlestick injury. Utility Model Content

[0003] One objective of this invention is to provide a new technical solution for a puncture-resistant blood collection needle to solve the technical problems mentioned in the background section.

[0004] According to a first aspect of the present invention, a puncture-resistant blood collection needle is provided, comprising a protective tube and a needle body;

[0005] One end of the protective tube is provided with a protective cone, and a needle hole is provided at the axis of the protective cone; the needle body is composed of a needle tube and a pushing block, the needle tube is disposed inside the needle hole and slides along the needle hole, the pushing block is fixedly connected to the needle tube, and a connecting groove is provided on the side of the pushing block away from the needle tube, the connecting groove being used to connect a blood collection device;

[0006] The protective tube has an axially oriented sliding groove on its side wall, and the push block has a toggle block on its side wall. The toggle block is located inside the sliding groove and can drive the push block and the needle tube to move, so that the needle tube protrudes outside the protective cone or is stored inside the protective cone.

[0007] Optionally, according to the puncture-resistant blood collection needle of the present invention, the end of the slide near the protective cone is further provided with a horizontally arranged slot. When the push block moves to the slot, the push block can drive the push block to rotate so that the position of the needle tube is fixed.

[0008] Optionally, according to the puncture-resistant blood collection needle of the present invention, the inner side of the protective cone near the push block is further provided with a rubber pad, and when the push block is located in the slot, the push block abuts against the rubber pad.

[0009] Optionally, according to the puncture-resistant blood collection needle of the present invention, the push block is provided in at least two sets and is symmetrically arranged on the side wall of the push block.

[0010] Optionally, according to the puncture-resistant blood collection needle of the present invention, at least two grooves are provided on the protective tube, each corresponding to one of the levers; and the slots located at the ends of the grooves have a centrally symmetrical structure.

[0011] Optionally, according to the puncture-resistant blood collection needle of the present invention, a positioning plate is provided at the end of the protective tube away from the protective cone, and a positioning hole is provided on the positioning plate for the blood collection device to penetrate into the protective tube.

[0012] Optionally, according to the puncture-resistant blood collection needle of this utility model, a tension spring is also provided between the positioning plate and the protective cone. When the push block disengages from the slot, the tension spring enables the push block to quickly reset.

[0013] Optionally, in the puncture-resistant blood collection needle according to this utility model, the positioning hole and the connecting groove are concentric.

[0014] Optionally, in the puncture-resistant blood collection needle according to this utility model, the protective cone is transparent to allow real-time observation of the needle tube's position.

[0015] Optionally, in the puncture-resistant blood collection needle according to this utility model, the protective tube is provided with anti-slip texture.

[0016] The blood collection needle disclosed in this utility model protects the needle body with a protective tube. After blood collection, a lever can be used to move the push block and the needle tube together, thereby protecting the needle and preventing needlestick injuries. The entire device can then be placed in a sharps container. Secondly, the protective cone can protect and restrain the needle tube, preventing it from breaking.

[0017] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0019] Figure 1 This is a schematic diagram of the anti-puncture blood collection needle disclosed in this utility model;

[0020] Figure 2 This is a schematic diagram of the anti-puncture groove and slide groove structure disclosed in this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1-Protective tube; 2-Pushing block; 3-Needle tube; 4-Protective cone; 5-Connecting groove; 6-Slide groove; 7-Pulling block; 8-Positioning plate; 9-Positioning hole; 10-Tension spring; 11-Card slot; 12-Rubber pad. Detailed Implementation

[0023] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0024] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0025] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0026] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0027] according to Figure 1 and Figure 2 As shown, this utility model provides a puncture-proof blood collection needle, including a protective tube 1 and a needle body;

[0028] One end of the protective tube 1 is provided with a protective cone 4, and a needle hole is provided at the axis of the protective cone 4; the needle body is composed of a needle tube 3 and a push block 2. The needle tube 3 is set inside the needle hole and slides along the needle hole. The push block 2 is fixedly connected to the needle tube 3, and a connecting groove 5 is provided on the side of the push block 2 away from the needle tube 3. The connecting groove 5 is used to connect the blood collection device.

[0029] The protective tube 1 has an axially arranged sliding groove 6 on its side wall, and the push block 2 has a push block 7 on its side wall. The push block 7 is located inside the sliding groove 6. The push block 7 can drive the push block 2 and the needle tube 3 to move so that the needle tube 3 protrudes outside the protective cone 4 or is stored inside the protective cone 4.

[0030] This invention protects the needle body with a protective tube 1. After blood collection, the pusher block 7 can be used to move the pusher block 2 and the needle tube 3 together, thus protecting the needle and preventing needlestick injuries. The entire device can then be placed in a sharps container. Secondly, the protective cone 4 protects and restrains the needle tube 3, preventing it from breaking.

[0031] Furthermore, the end of the slide 6 near the protective cone 4 is also provided with a horizontally arranged locking groove 11. When the lever 7 moves to the locking groove 11, the lever 7 can drive the push block 2 to rotate, so as to fix the position of the needle tube 3. In practice, medical staff can push the needle tube 3 out of the protective cone 4 by using the lever 7, and then rotate the lever 7 so that the lever 7 is locked into the locking groove 11, so as to ensure the stability of the needle tube 3 and avoid the problem of the needle tube 3 sliding during blood collection.

[0032] Furthermore, a rubber pad 12 is provided on the inner side of the protective cone 4 near the pushing block 2. When the push block 7 is located within the slot 11, the pushing block 2 abuts against the rubber pad 12. In implementation, the push block 7 and the slot 11 should be in clearance fit so that the push block 7 can be effectively pushed into the slot 11. In this case, it means that the push block 7 can generate a certain displacement in the slot 11. This utility model uses the rubber pad 12 to elastically compress the pushing block 2, so that the push block 7 remains stable without human operation.

[0033] Furthermore, at least two sets of lever blocks 7 are provided and symmetrically arranged on the side wall of the push block 2. At least two grooves 6 are provided on the protective tube 1, each corresponding to one of the lever blocks 7; and the slots 11 at the ends of the grooves 6 have a centrally symmetrical structure. In implementation, the movement of the push block 2 is made smoother by using two sets of lever blocks 7.

[0034] Furthermore, a positioning plate 8 is provided at the end of the protective tube 1 away from the protective cone 4. The positioning plate 8 is provided with a positioning hole 9, which is used for the blood collection device to penetrate into the protective tube 1.

[0035] Furthermore, a tension spring 10 is provided between the positioning plate 8 and the protective cone 4. When the push block 7 disengages from the slot 11, the tension spring 10 enables the push block 2 to quickly reset. In practice, after blood collection, medical staff need to push the needle 3 back into the protective cone 4. To save unnecessary time, this invention uses the tension spring 10 to enable the push block 2 to quickly reset, allowing medical staff to simply rotate the push block 7 out of the slot 11.

[0036] Furthermore, the positioning hole 9 and the connecting groove 5 are concentric. This ensures that the blood collection device can be precisely aligned with the connecting groove 5 via the positioning plate 8. Correspondingly, the protective tube 1 can be designed in a serrated shape to allow medical personnel to observe whether the blood collection device and the connecting groove 5 are successfully connected.

[0037] Furthermore, the protective cone 4 is transparent to allow for real-time monitoring of the position of the needle 3, preventing sudden protrusion of the needle 3 and avoiding potential puncture injuries.

[0038] Furthermore, the protective tube 1 is provided with anti-slip texture to facilitate medical staff to hold the protective tube 1, thereby stably connecting the blood collection device to the connecting groove 5 on the push block 2.

[0039] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A puncture-resistant blood collection needle, characterized in that, Includes the protective tube and the needle body; One end of the protective tube is provided with a protective cone, and a needle hole is provided at the axis of the protective cone; the needle body is composed of a needle tube and a pushing block, the needle tube is disposed inside the needle hole and slides along the needle hole, the pushing block is fixedly connected to the needle tube, and a connecting groove is provided on the side of the pushing block away from the needle tube, the connecting groove being used to connect a blood collection device; The protective tube has an axially arranged sliding groove on its side wall, and the push block has a toggle block on its side wall. The toggle block is located inside the sliding groove and can drive the push block and the needle tube to move so that the needle tube protrudes outside the protective cone or is stored inside the protective cone. The slide groove is also provided with a horizontally arranged slot at one end near the protective cone. When the push block moves to the slot, the push block can drive the push block to rotate so that the position of the needle tube is fixed. The inner side of the protective cone near the push block is also provided with a rubber pad. When the push block is located in the slot, the push block abuts against the rubber pad. The push block is provided in at least two sets and is symmetrically arranged on the side wall of the push block; The protective tube has at least two grooves, each corresponding to one of the levers; and the slots at the ends of the grooves are centrally symmetrical.

2. The anti-puncture blood collection needle according to claim 1, characterized in that, The protective tube is also provided with a positioning plate at the end away from the protective cone. The positioning plate is provided with a positioning hole, which is used for the blood collection device to penetrate into the protective tube.

3. The puncture-resistant blood collection needle according to claim 2, characterized in that, A tension spring is also provided between the positioning plate and the protective cone. When the push block disengages from the slot, the tension spring enables the push block to quickly reset.

4. The puncture-resistant blood collection needle according to claim 3, characterized in that, The positioning hole and the connecting groove are concentric.

5. The puncture-resistant blood collection needle according to claim 1, characterized in that, The protective cone is transparent to allow for real-time observation of the needle's position.

6. The puncture-resistant blood collection needle according to claim 1, characterized in that, The protective tube has anti-slip texture.

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