A lancet assembly and a lancet device

Abstract

This utility model discloses a blood collection needle component and device, relating to the field of blood collection needle technology. It includes a needle body with a mounting sleeve fixedly installed at one end. Two protective plates are provided on the outer side of the needle body, each with a protective groove inside. The side of each protective plate away from the needle body is rotatably connected to the mounting sleeve via a connecting pin. A push arm is provided on the upper side of each protective plate. This blood collection needle component and device features a protective plate on the outer side of the needle body that can be closed by magnetic attraction, providing good protection during use. Furthermore, the protective plate not only protects the needle body but also assists in the smooth completion of blood collection, enhancing functionality. This blood collection needle component and device solve the problem of operators being accidentally scratched by the needle tip or having the needle tip contaminate the collection environment when removing the blood collection needle from the patient's skin.

Description

Technical Field

[0001] This utility model relates to the field of blood collection needle technology, specifically to a blood collection needle component and a blood collection needle device. Background Technology

[0002] A blood collection needle is a medical device used to collect human blood samples. It obtains venous blood by puncturing the skin. The venous blood is used for laboratory analysis such as blood glucose monitoring, complete blood count, and biochemical tests. It has achieved efficient and safe blood sample collection in fields such as medical testing and home health management.

[0003] A blood collection needle consists of a blood collection tube, a sheath, and a needle connected to one end of the blood collection tube. The needle is usually made of medical stainless steel. When using it, the operator holds the sheath and slowly punctures the skin with the needle to collect blood. The collected blood is then discharged through the blood collection tube. However, the existing blood collection needles do not have a protective structure at the end. When the operator removes the blood collection needle from the patient's skin, there is a slight risk of being scratched by the needle or the needle touching the collection area and contaminating the collection environment, which brings great inconvenience to the blood collection work. Utility Model Content

[0004] The purpose of this invention is to provide a blood collection needle component and a blood collection needle device to solve the problem mentioned in the background art where, when an operator removes the blood collection needle from the patient's skin, the operator may be accidentally scratched by the needle or the needle may touch the collection area and contaminate the collection environment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a blood collection needle component, including a needle body,

[0006] One end of the needle body is fixedly provided with an installation sleeve. Two protective plates are provided on the outside of the needle body. Both protective plates have protective grooves inside. The side of the two protective plates away from the needle body is rotatably connected to the installation sleeve by a connecting pin. Both protective plates have a push arm on the upper side. The two ends of the two push arms are hinged to the protective plate and the connecting frame respectively by the installation pin. A positioning block is inserted into one side of the connecting frame. A locking ball is welded to the bottom of the positioning block. The installation sleeve has a first positioning groove and a second positioning groove inside.

[0007] Preferably, the two protective plates are respectively fitted with a first magnetic block and a second magnetic block on their adjacent sides.

[0008] Preferably, the magnetic properties of the adjacent sides of the first magnetic block and the second magnetic block are opposite, and the adjacent sides of the first magnetic block and the second magnetic block abut against each other.

[0009] Preferably, both the second positioning groove and the first positioning groove are spherical.

[0010] Preferably, the bottom of the engaging ball is inserted into the first positioning groove, and the outer dimension of the engaging ball matches the inner groove dimension of the connecting frame.

[0011] A blood collection needle device, wherein a blood collection tube body is connected to one side of the needle body, and a mounting sleeve is fitted onto the blood collection tube body.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the blood collection needle component and blood collection needle device are provided with a protective plate on the outside of the needle body that can be closed by magnetic attraction, which provides good protection during use. In addition, the protective plate can also assist the smooth completion of blood collection while protecting the needle body, thus improving functionality. It solves the problem that when the operator removes the blood collection needle from the patient's skin, the needle tip may be scratched or touch the collection area and contaminate the collection environment.

[0013] 1. In order to facilitate the protection of the needle body, after the operator completes the blood collection work, the two protective plates will close due to the hinge action of the connecting pin and the mounting sleeve, under the mutual attraction of the first magnetic block and the second magnetic block. At this time, the needle body is completely located in the protective groove opened inside the two protective plates, and is isolated from the outside. The blood collection needle component and blood collection needle device are provided with a protective plate on the outside of the needle body that can be closed by magnetic attraction, which provides good protection during use.

[0014] 2. To prevent the protective plate from interfering with blood collection during the procedure, before using the needle, remove the locking ball and positioning block, then pull the connecting frame to move its groove to the upper side of the second positioning slot. At this time, the pushing arm will rotate the protective plate along the connecting pin to open it. Take out the positioning block and insert the locking ball through the groove inside the connecting frame into the second positioning slot to limit the position of the protective plate. The operator can then hold the protective plate and push the needle to puncture the patient's skin. This blood collection needle component and device not only protects the needle but also assists in the smooth completion of blood collection, thus improving its functionality. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the blood collection needle device of this utility model;

[0016] Figure 2 This is a schematic diagram of the exploded structure of the blood collection needle device of this utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the protective plate of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the blood collection needle component of this utility model.

[0019] In the diagram: 1. Blood collection tube body; 2. Needle body; 3. Protective plate; 301. Protective groove; 302. Mounting sleeve; 303. Connecting pin; 304. First magnetic block; 305. Second magnetic block; 4. Push arm; 401. Connecting frame; 402. Mounting pin; 403. First positioning groove; 404. Second positioning groove; 405. Engaging ball; 406. Positioning block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 This utility model provides a technical solution: a blood collection needle component and a blood collection needle device, including a needle body 2.

[0022] One end of the needle body 2 is fixedly provided with an installation sleeve 302. Two protective plates 3 are provided on the outside of the needle body 2. Each of the two protective plates 3 has a protective groove 301 inside. The side of each of the two protective plates 3 away from the needle body 2 is rotatably connected to the installation sleeve 302 through a connecting pin 303. The adjacent sides of the two protective plates 3 are respectively fitted with a first magnetic block 304 and a second magnetic block 305. The magnetic properties of the adjacent sides of the first magnetic block 304 and the second magnetic block 305 are opposite, and the adjacent sides of the first magnetic block 304 and the second magnetic block 305 abut against each other.

[0023] In specific implementation, to facilitate the protection of the needle body 2, a rotatably connected protective plate 3 is provided on one side of the needle body 2. When the operator completes the blood collection work and pulls out the needle, the two protective plates 3 will close due to the hinge action of the connecting pin 303 and the mounting sleeve 302, under the mutual attraction of the first magnetic block 304 and the second magnetic block 305. At this time, the needle body 2 is completely located in the protective groove 301 opened inside the two protective plates 3, and is isolated from the outside. The blood collection needle component and blood collection needle device have a protective plate 3 on the outside of the needle body 2 that can be closed by magnetic attraction, which has a good protective effect when in use.

[0024] See Figure 1 , Figure 2 and Figure 4It is known that both protective plates 3 are provided with push arms 4 on their upper sides. The two ends of the two push arms 4 are respectively hinged to the protective plate 3 and the connecting frame 401 by mounting pins 402. A positioning block 406 is inserted into one side of the connecting frame 401. A locking ball 405 is welded to the bottom of the positioning block 406. The mounting sleeve 302 has a first positioning groove 403 and a second positioning groove 404 inside. The second positioning groove 404 and the first positioning groove 403 are both spherical. The bottom of the locking ball 405 is inserted into the first positioning groove 403, and the outer dimension of the locking ball 405 matches the dimension of the groove inside the connecting frame 401.

[0025] In practice, to avoid interference from the protective plate 3 during blood collection, before using the needle body 2, remove the locking ball 405 inserted into the first positioning groove 403 and the connecting frame 401, as well as the positioning block 406 welded to the locking ball 405. Then, pull the connecting frame 401 to move the groove of the connecting frame 401 to the upper side of the second positioning groove 404. At this time, the connecting frame 401 will drive the protective plate 3 to rotate and open along the connecting pin 303 through the hinge action of the mounting pin 402 and the push arm 4. Take out the positioning block 406 and pass the locking ball 405 through the connecting frame 403. The groove inside 01 is inserted into the second positioning groove 404 to limit the position of the two protective plates 3. The operator can hold the protective plate 3 to push the needle body 2 to puncture the patient's skin. After the blood collection is completed, the locking ball 405 and positioning block 406 are removed again, and the needle body 2 is pulled out. The two protective plates 3 will close under the mutual attraction of the first magnetic block 304 and the second magnetic block 305. This blood collection needle component and blood collection needle device can protect the needle body 2 while also assisting in the smooth completion of the blood collection work, thus improving its functionality.

[0026] A blood collection needle device, wherein a blood collection tube body 1 is connected to one side of the needle body 2, and the mounting sleeve 302 is fitted onto the blood collection tube body 1.

[0027] In summary, when using this blood collection needle component and device, remove the locking ball 405 and positioning block 406, pull the groove of the connecting frame 401 to the upper side of the second positioning groove 404, causing the protective plate 3 to rotate and open along the connecting pin 303. Take out the positioning block 406 and insert the locking ball 405 through the groove inside the connecting frame 401 into the second positioning groove 404. The operator holds the protective plate 3 and pushes the needle body 2 to puncture the patient's skin. At this time, blood can be discharged along the needle body 2 and the blood collection tube body 1. After completing the blood collection work, remove the locking ball 405 and positioning block 406 again and pull out the needle body 2. The two protective plates 3 can close under the mutual attraction of the first magnetic block 304 and the second magnetic block 305. The mounting sleeve 302 is used to support the connection between the blood collection tube body 1 and the needle body 2 and strengthen the connection effect between the two. The contents not described in detail in this description are prior art known to those skilled in the art.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A blood collection needle component, comprising a needle body (2), characterized in that: One end of the needle body (2) is fixedly provided with an installation sleeve (302). Two protective plates (3) are provided on the outside of the needle body (2). Both protective plates (3) have protective grooves (301) inside. The side of the two protective plates (3) away from the needle body (2) is rotatably connected to the installation sleeve (302) through a connecting pin (303). Both protective plates (3) are provided with a push arm (4) on the upper side. The two ends of the two push arms (4) are respectively hinged to the protective plate (3) and the connecting frame (401) through the installation pin (402). A positioning block (406) is inserted into one side of the connecting frame (401). A locking ball (405) is welded to the bottom of the positioning block (406). The installation sleeve (302) has a first positioning groove (403) and a second positioning groove (404) inside.

2. A lancet assembly according to claim 1, wherein: The two protective plates (3) are respectively fitted with a first magnetic block (304) and a second magnetic block (305) on their adjacent sides.

3. A lancet assembly according to claim 2, wherein: The magnetic properties of the first magnetic block (304) and the second magnetic block (305) are opposite on adjacent sides, and the adjacent sides of the first magnetic block (304) and the second magnetic block (305) abut against each other.

4. A lancet assembly according to claim 1, wherein: Both the second positioning groove (404) and the first positioning groove (403) are spherical.

5. A lancet assembly according to claim 4, wherein: The bottom of the locking ball (405) is inserted into the first positioning groove (403), and the outer dimension of the locking ball (405) matches the inner groove dimension of the connecting frame (401).

6. A lancet device employing a lancet assembly according to any one of claims 1 to 5, characterised in that: The needle body (2) is connected to a blood collection tube body (1) on one side, and the mounting sleeve (302) is fitted on the outside of the blood collection tube body (1) and connected to the mounting sleeve (302).

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