Automatic disinfection blood taking needle

Abstract

The utility model discloses an automatic disinfection blood taking needle which comprises a fixing part, the two ends of the fixing part are connected with a blood taking needle and a hose respectively, a disinfection block is arranged at the end, connected with the blood taking needle, of the fixing part, a disinfection cavity is formed in the disinfection block, the blood taking needle is sleeved with the disinfection block, and disinfection cotton is arranged in the disinfection cavity. The side, facing the blood taking needle, of the disinfection cavity is communicated with the blood taking needle and is a disinfection opening, a protective cover is detachably connected to the end, connected with the blood taking needle, of the fixing part, the blood taking needle is located in the protective cover, and an isolation cylinder corresponding to the disinfection opening is arranged on the protective cover. When the protective cover is connected, aseptic cotton in the disinfection cavity is isolated from the blood taking needle in a sealed mode through the isolation barrel, an ejection mechanism is arranged between the disinfection block and the fixing part, rapid and automatic disinfection of the blood taking needle is achieved, and efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and more specifically relates to an automatic disinfection blood collection needle. Background Technology

[0002] Blood tests require venous blood collection using disposable lancets. Before blood collection, the patient's blood collection site is disinfected. Since the lancets are disposable, they are sterilized by the manufacturer when they are sealed in the packaging. The sealed packaging of the lancets generally ensures that the internal environment remains sterile within its shelf life. Therefore, during blood collection, the lancet is usually used directly after opening the packaging without further sterilization, which improves blood collection efficiency.

[0003] In special circumstances, such as children or patients who cannot control their limbs, who may be uncooperative during blood collection, or if the blood collection personnel operate improperly and fail to accurately locate the vein, the first puncture may fail to draw blood. In such cases, a second puncture is usually performed within a short time (usually within one minute) to reduce the risk of infection of the needle and puncture site. If the second attempt is unsuccessful, a new blood collection needle must be used.

[0004] Based on the above, the blood collection needle can be disinfected after the first puncture fails to draw blood, in order to extend the time interval until the second puncture. Currently, the disinfection is still done manually by the blood collection personnel, which is inefficient. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an automatically and rapidly sterilized blood collection needle, thereby improving efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic disinfection blood collection needle, comprising a fixing part, with a blood collection needle and a tubing connected to both ends of the fixing part respectively. A disinfection block is provided on the end of the fixing part connected to the blood collection needle, and a disinfection cavity is provided inside the disinfection block. The disinfection block is fitted onto the blood collection needle, and a disinfection cotton is provided inside the disinfection cavity. The side of the disinfection cavity facing the blood collection needle is connected to the blood collection needle and serves as a disinfection opening. A protective cover is detachably connected to the end of the fixing part connected to the blood collection needle, and the blood collection needle is located inside the protective cover. An isolation cylinder corresponding to the disinfection opening is provided on the protective cover. When the protective cover is connected, the disinfection cotton inside the disinfection cavity is sealed and isolated from the blood collection needle through the isolation cylinder. An ejection mechanism is provided between the disinfection block and the fixing part.

[0007] Furthermore, the ejection mechanism includes a fixing plate located on the fixing part and a driving plate located on the disinfection block. A spring is provided between the driving plate and the fixing plate, and a separation mechanism is provided between the fixing plate and the driving plate.

[0008] Furthermore, the separation mechanism includes a pawl elastically hinged to the fixed plate, the end of the pawl hooking onto the end of the drive plate.

[0009] Furthermore, the fixing plate is provided with a spring hole, the spring is located in the spring hole, and one end of the spring is connected to the bottom surface of the spring hole, and the other end is connected to the driving plate.

[0010] Furthermore, the disinfection block is provided with a liquid storage cavity, which is connected to the disinfection cavity, and the liquid storage cavity is filled with disinfectant.

[0011] Compared with the prior art, the beneficial effects of this utility model are: when using the blood collection needle for the first time, the protective cap on the blood collection needle can be removed for use. If the first blood collection is unsuccessful, the drive plate is released, and the disinfection block is ejected. During the ejection process, the surface of the blood collection needle is disinfected by the disinfection cotton in contact with the blood collection needle, and finally ejected from the needle tip, thus achieving rapid and automatic disinfection of the blood collection needle and improving efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the automatic disinfection blood collection needle of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the automatic disinfection blood collection needle of this utility model during disinfection.

[0014] Reference numerals: 1. Fixing part; 2. Blood collection needle; 3. Tube; 4. Sterilization block; 5. Sterilization chamber; 6. Sterilization cotton; 7. Protective cover; 8. Isolation tube; 9. Fixing plate; 10. Driving plate; 11. Spring; 12. Claw; 13. Spring hole; 14. Liquid storage chamber. Detailed Implementation

[0015] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0016] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0017] Reference Figure 1 and Figure 2 The present invention will be further described below.

[0018] An automatic disinfection blood collection needle includes a fixing part 1, with a blood collection needle 2 and a tubing 3 connected to its two ends respectively. A disinfection block 4 is provided on the end of the fixing part 1 connected to the blood collection needle 2. A disinfection cavity 5 is provided inside the disinfection block 4, which is fitted onto the blood collection needle 2. A disinfection cotton 6 is provided inside the disinfection cavity 5. The side of the disinfection cavity 5 facing the blood collection needle 2 is connected to the blood collection needle 2 and serves as a disinfection opening. A protective cover 7 is detachably connected to the end of the fixing part 1 connected to the blood collection needle 2. The blood collection needle 2 is located inside the protective cover 7. An isolation cylinder 8 corresponding to the disinfection opening is provided on the protective cover 7. When the protective cover 7 is connected, the disinfection cotton 6 inside the disinfection cavity 5 is sealed and isolated from the blood collection needle 2 through the isolation cylinder 8. An ejection mechanism is provided between the disinfection block 4 and the fixing part 1.

[0019] like Figure 1 and Figure 2 As shown, in this preferred embodiment, the ejection mechanism includes a fixing plate 9 located on the fixing part 1 and a driving plate 10 located on the disinfection block 4. A spring 11 is provided between the driving plate 10 and the fixing plate 9. A separation mechanism is provided between the fixing plate 9 and the driving plate 10. The spring 11 is in a large compression state or a fully compressed state, thereby increasing the ejection force.

[0020] like Figure 1 and Figure 2 As shown, in this preferred embodiment, the separation mechanism includes a claw 12 elastically hinged to the fixed plate 9, the end of the claw 12 hooking the end of the drive plate 10.

[0021] Specifically, a torsion spring can be installed between the rotating shaft and the shaft hole between the pawl 12 and the fixing plate 9. The torsion of the torsion spring keeps the pawl 12 hooked to the driving plate 10 and prevents it from being easily rotated.

[0022] like Figure 1 and Figure 2 As shown, in this preferred embodiment, the fixing plate 9 is provided with a spring hole 13, the spring 11 is located in the spring hole 13, and one end of the spring 11 is connected to the bottom surface of the spring hole 13, and the other end is connected to the driving plate 10.

[0023] Preferably, the spring 11 can also be in contact with the drive plate, and the disinfection block 4 can be disengaged from the spring 11 after the spring 11 releases its elastic force.

[0024] like Figure 1 and Figure 2 As shown in this example, preferably, the disinfection block 4 is provided with a liquid storage chamber 14, which is connected to the disinfection chamber 5. The liquid storage chamber 14 is filled with disinfectant. When the protective cover 7 is put on the blood collection needle 2, the disinfectant cotton 6 in the disinfection chamber 5 is compressed and squeezed, and the squeezed disinfectant can be stored in the liquid storage chamber 14. When the protective cover 7 is removed, the disinfectant cotton 6 expands and absorbs the disinfectant in the liquid storage chamber 14.

[0025] like Figure 1 and Figure 2 As shown, when using the blood collection needle 2 for the first time, simply remove the protective cap 7 from the blood collection needle 2. Removing the protective cap 7 connects the disinfectant cotton 6 to the blood collection needle 2, allowing the disinfectant cotton 6 to contact the blood collection needle 2 due to its elasticity. However, due to the capillary action of the disinfectant cotton 6 on the disinfectant solution, the disinfectant solution inside the disinfectant cotton 6 will not flow out along the blood collection needle 2, thus not affecting the first blood collection operation. If the first blood collection is unsuccessful, one end of the clamp 12 can be bent downwards to hook one end of the drive plate 10, releasing the drive plate 10. The compressed spring 11 releases its elasticity, thereby quickly driving the disinfectant block 4 to eject. During the ejection process, the surface of the blood collection needle 2 is disinfected through the disinfectant cotton 6 in contact with the blood collection needle 2, and finally ejected from the needle tip of the blood collection needle 2, achieving rapid and automatic disinfection of the blood collection needle 2 and improving efficiency.

[0026] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An automatic sterilization blood collection needle, characterized in that: The device includes a fixing part, with a blood collection needle and a tubing connected to each end of the fixing part. A disinfection block is provided on the end of the fixing part connected to the blood collection needle, and a disinfection chamber is provided inside the disinfection block. The disinfection block is fitted onto the blood collection needle, and a disinfection cotton is provided inside the disinfection chamber. The side of the disinfection chamber facing the blood collection needle is connected to the blood collection needle and serves as a disinfection opening. A protective cap is detachably connected to the end of the fixing part connected to the blood collection needle, and the blood collection needle is located inside the protective cap. An isolation cylinder corresponding to the disinfection opening is provided on the protective cap. When the protective cap is connected, the isolation cylinder seals and isolates the disinfection cotton inside the disinfection chamber from the blood collection needle. An ejection mechanism is provided between the disinfection block and the fixing part.

2. The automatic sterilization blood collection needle according to claim 1, characterized in that: The ejection mechanism includes a fixed plate on the fixed part and a driving plate on the disinfection block. A spring is provided between the driving plate and the fixed plate, and a separation mechanism is provided between the fixed plate and the driving plate.

3. The automatic sterilization blood collection needle according to claim 2, characterized in that: The separation mechanism includes a pawl that is elastically hinged to a fixed plate, the end of which hooks onto the end of a drive plate.

4. The automatic sterilization blood collection needle according to claim 2, characterized in that: The fixing plate is provided with a spring hole, the spring is located in the spring hole, one end of the spring is connected to the bottom surface of the spring hole, and the other end is connected to the driving plate.

5. The automatic sterilization blood collection needle according to claim 1, characterized in that: The disinfection block is provided with a liquid storage chamber, which is connected to the disinfection chamber and is filled with disinfectant.

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