Medical needle capillary tube

Abstract

The utility model relates to medical instrument technical field, concretely is a medical needle capillary, including needle tube, the needle tube is fixedly connected with needle handle, the needle tube right -hand member fixedly links with needle point, the needle tube is equipped with the protective sheath, the inner wall fixedly connected with mobile positioning sleeve of protective sheath, the needle tube outer fixed sleeve is equipped with two sets of limit ring, and the side of two sets of limit ring close to mobile positioning sleeve is all fixedly connected with fixed positioning sleeve, the fixed positioning sleeve fixed sleeve sets in the needle tube outside. When not using, the protective sheath is covered in the needle point outside and plays the protection function, when using, manually moving the protective sheath, makes its mobile positioning sleeve and left side fixed positioning sleeve extrusion, fixed position by friction, and the needle point exposes and can use, after using, manually moving the protective sheath reversely, makes mobile positioning sleeve and right side fixed positioning sleeve extrusion, and the needle point is collected into the protective sheath, can prevent the protective sheath loss, avoids the needle point mistake hurt medical staff, guarantees medical safety.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a medical needle capillary. Background Technology

[0002] In the medical field, medical needle capillary tubes play a crucial role, serving as an indispensable component in numerous medical procedures such as infusions, injections, and blood collection. They are typically composed of extremely fine hollow tubes with precisely controlled inner diameters to ensure stable and accurate delivery of medications or blood. Whether for routine infusions in hospital wards or precise injections during complex surgeries, medical needle capillary tubes bear the heavy responsibility of drug delivery.

[0003] However, the protective sleeves for commonly used intravenous needles are usually just a simple cover on the outside of the needle, making them very easy to lose. In actual medical settings, during busy work, medical staff may lose the protective sleeve due to accidental impacts or careless placement during frequent handling. Once the protective sleeve is lost, the exposed needle poses a significant risk of needlestick injury to medical staff during subsequent use. Furthermore, the lack of a protective sleeve also increases the chance of accidental injury to medical staff during the needle retrieval phase after use. This not only poses a serious threat to the health of medical staff but may also lead to potential risks such as bloodborne diseases, creating a significant hidden danger to medical safety.

[0004] To prevent the protective sheath of the needle from being lost, avoid accidental injury to medical staff by exposed needles, and ensure medical safety, we propose a medical needle capillary tube. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a medical needle capillary tube that prevents the protective sheath from being lost, avoids accidental injury to medical personnel from exposed needles, and ensures medical safety.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A medical needle capillary includes a needle tube with a needle handle fixedly connected to it. A needle tip is fixedly connected to the right end of the needle tube. A protective sleeve is provided over the needle tube. A movable positioning sleeve is fixedly connected to the inner wall of the protective sleeve. The movable positioning sleeve is movably fitted outside the needle tube. Two sets of limiting rings are fixedly fitted outside the needle tube. A fixed positioning sleeve is fixedly connected to the side of each of the two sets of limiting rings near the movable positioning sleeve. The fixed positioning sleeve is fixedly fitted outside the needle tube.

[0007] Preferably, the fixed positioning sleeve is provided with a first inclined surface, and the movable positioning sleeve is provided with a second inclined surface corresponding to the first inclined surface, and both the movable positioning sleeve and the fixed positioning sleeve are made of rubber.

[0008] Preferably, a protective film is fixedly connected to the right end of the protective sleeve, and the protective film is made of rubber.

[0009] Preferably, the protective sleeve is fixedly connected to a number of movable blocks, and the movable blocks are coated with an anti-slip layer.

[0010] Preferably, the needle tip is coated with a polytetrafluoroethylene (PTFE) lubricating coating.

[0011] Preferably, the protective sleeve is made of polyethylene (PE) material. Beneficial effects

[0012] This invention provides a medical needle capillary. Compared with the prior art, it has the following advantages: This type of medical needle capillary has a protective sleeve covering the needle tip when not in use, which protects the tip from dust and bacteria contamination. When in use, the protective sleeve is manually moved so that the movable positioning sleeve on the sleeve presses against the fixed positioning sleeve on the left, fixing the position through friction. The needle tip then penetrates the protective film and is ready for use. After use, the protective sleeve is manually moved in the opposite direction so that the movable positioning sleeve presses against the fixed positioning sleeve on the right, retracting the needle tip into the protective sleeve. The penetrated protective film then returns to its original position, continuing to provide protection. This prevents the protective sleeve from being lost, avoids accidental needle tip injury to medical personnel, and ensures medical safety. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of the main body of this utility model; Figure 2 This is a schematic diagram of the main structure of the present utility model in use. Figure 3 This is a schematic diagram of the exploded structure of the main body of this utility model; Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle; Figure 5 This is a schematic diagram of the cross-sectional structure of the movable positioning sleeve and the fixed positioning sleeve of this utility model.

[0014] In the diagram: 1. Needle tube; 2. Needle handle; 3. Protective sleeve; 4. Protective film; 5. Moving block; 6. Needle tip; 7. Moving positioning sleeve; 8. Limiting ring; 9. Fixed positioning sleeve. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-5 This utility model provides a technical solution: a medical needle capillary tube, including a needle tube 1, a needle handle 2 fixedly connected to the needle tube 1, a needle tip 6 fixedly connected to the right end of the needle tube 1, a protective sleeve 3 covering the needle tube 1, a movable positioning sleeve 7 fixedly connected to the inner wall of the protective sleeve 3, the movable positioning sleeve 7 being movably fitted outside the needle tube 1, two sets of limiting rings 8 fixedly fitted outside the needle tube 1, and a fixed positioning sleeve 9 fixedly connected to the side of the two sets of limiting rings 8 near the movable positioning sleeve 7, the fixed positioning sleeve 9 being fixedly fitted outside the needle tube 1.

[0017] When not in use, the protective sleeve 3 is placed over the needle tip 6 for protection. When needed, the protective sleeve 3 is manually moved towards the needle handle 2 until the movable positioning sleeve 7 and the left fixed positioning sleeve 9 press against each other. The friction will fix the position of the protective sleeve 3, at which point the needle tip 6 will protrude from the protective sleeve 3 and can be used normally. After use, the protective sleeve 3 is manually moved away from the needle handle 2 until the movable positioning sleeve 7 and the right fixed positioning sleeve 9 press against each other. This will retract the used needle tip 6 into the protective sleeve 3, thus preventing the protective sleeve 3 from being lost and avoiding accidental injury to medical personnel by the exposed needle tip 6, ensuring medical safety.

[0018] The fixed positioning sleeve 9 is provided with a first inclined surface, and the movable positioning sleeve 7 is provided with a second inclined surface corresponding to the first inclined surface. Both the movable positioning sleeve 7 and the fixed positioning sleeve 9 are made of rubber.

[0019] The friction area between the movable positioning sleeve 7 and the fixed positioning sleeve 9 is increased. When the movable positioning sleeve 7 and the fixed positioning sleeve 9 are pressed against each other, the position of the protective sleeve 3 can be fixed under the action of friction.

[0020] The protective cover 3 is fixedly connected to the right end with a protective film 4, which is made of rubber.

[0021] When not in use, the protective film 4 can prevent dust, bacteria and other contaminants from contaminating the needle tip 6. When in use, the needle tip 6 can directly penetrate the protective film 4 without affecting normal use. After use, the penetrated protective film 4 can be restored and continue to play a protective role.

[0022] The protective sleeve 3 is fixedly connected to several sets of movable blocks 5, and the movable blocks 5 are coated with an anti-slip layer. This facilitates the movement of the protective sleeve 3 by medical staff.

[0023] The needle tip 6 is coated with a polytetrafluoroethylene (PTFE) lubricating coating, which can significantly reduce the friction between the needle and the tissue, reduce resistance during puncture, and alleviate the patient's pain and discomfort.

[0024] The protective cover 3 is made of polyethylene (PE) material, which has high strength and rigidity, ensuring that it is not easily deformed during use. It is also non-toxic and odorless, meeting the safety standards for medical products.

[0025] Working principle: When not in use, the protective sleeve 3 is placed over the needle tip 6 for protection. The protective film 4 prevents dust, bacteria, and other contaminants from contaminating the needle tip 6. When needed, the protective sleeve 3 is manually moved towards the needle handle 2 until the movable positioning sleeve 7 and the left fixed positioning sleeve 9 are pressed together. The friction fixes the position of the protective sleeve 3, and the needle tip 6 penetrates the protective film 4 and protrudes from the protective sleeve 3, ready for normal use. After use, the protective sleeve 3 is manually moved away from the needle handle 2 until the movable positioning sleeve 7 and the right fixed positioning sleeve 9 are pressed together, allowing the used needle tip 6 to be retracted into the protective sleeve 3. The penetrated protective film 4 then recovers and continues to provide protection, thus preventing the protective sleeve 3 from being lost and avoiding accidental injury to medical personnel by the exposed needle tip 6, ensuring medical safety.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A medical needle capillary tube, comprising a needle tube (1), characterized in that: A needle handle (2) is fixedly connected to the needle tube (1). A needle tip (6) is fixedly connected to the right end of the needle tube (1). A protective sleeve (3) is provided on the outer sleeve of the needle tube (1). A movable positioning sleeve (7) is fixedly connected to the inner wall of the protective sleeve (3). The movable positioning sleeve (7) is movably sleeved outside the needle tube (1). Two sets of limiting rings (8) are fixedly sleeved outside the needle tube (1). A fixed positioning sleeve (9) is fixedly connected to the side of the two sets of limiting rings (8) near the movable positioning sleeve (7). The fixed positioning sleeve (9) is fixedly sleeved outside the needle tube (1).

2. The medical needle capillary tube according to claim 1, characterized in that: The fixed positioning sleeve (9) is provided with a first inclined surface, and the movable positioning sleeve (7) is provided with a second inclined surface corresponding to the first inclined surface. Both the movable positioning sleeve (7) and the fixed positioning sleeve (9) are made of rubber.

3. The medical needle capillary tube according to claim 1, characterized in that: The protective sleeve (3) is fixedly connected to a protective film (4) at its right end. The protective film (4) is made of rubber.

4. A medical needle capillary tube according to claim 1, characterized in that: The protective sleeve (3) is fixedly connected to several sets of movable blocks (5), and the movable blocks (5) are coated with an anti-slip layer.

5. A medical needle capillary tube according to claim 1, characterized in that: The needle tip (6) is coated with a polytetrafluoroethylene (PTFE) lubricating coating.

6. A medical needle capillary tube according to claim 1, characterized in that: The protective sleeve (3) is made of polyethylene (PE) material.

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