Intravenous infusion needle with protective sleeve

Abstract

The utility model is suitable for the technical field of infusion needles, and provides an intravenous infusion needle with a protective sleeve, which comprises a catheter connector, an infusion needle and a protective piece, the protection piece comprises a protection sleeve; an inner spiral groove is formed in the inner side, close to the opening, of the protective sleeve. An outer spiral groove is formed in the outer wall of the side, close to the infusion needle, of the catheter connector. A guide cover is arranged on one side, opposite to the infusion needle, of the protective sleeve; by arranging the protection piece, the infusion needle can be protected from being polluted, the contact with the external environment is reduced, and therefore the infection risk is reduced, the annular inner spiral groove in the inner side of the protection piece is matched with the annular outer spiral groove of the catheter connector, tight and stable connection is ensured, and the protection sleeve is allowed to easily rotate to adjust the position; meanwhile, enough stability is kept, falling or leakage is prevented, the trumpet-shaped design of the guide cover ensures smoothness and safety during insertion, puncture caused by too small caliber is prevented, and the use safety is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of infusion needles, in particular to an intravenous infusion needle with a protective cover. Background Art

[0002] In current medical practice, intravenous infusion is a common treatment method. In order to ensure the safety and effectiveness of the infusion process, intravenous needles have undergone many optimizations and improvements in design and use. Among them, the needle protective cover is an important safety measure.

[0003] The main function of the protective cover is to protect the intravenous needle from being contaminated by the external environment before use, thereby avoiding potential infection risks; at the same time, it can also prevent the needle from injuring people, increasing the safety of medical staff and patients; however, the existing protective cover design still has some shortcomings;

[0004] First, the existing protective cover is usually a rubber tube longer than the intravenous needle, and its inner diameter is the same as the outer diameter of the needle connecting tube. Although this design is simple, there are some problems in actual use. Due to the small diameter of the protective cover, medical staff may encounter difficulties when pulling out and inserting the needle. Especially in a busy working environment, it is difficult to ensure that the intravenous needle can be inserted into the protective cover at one time every time; this not only affects work efficiency, but also may increase the risk of needle injury;

[0005] Secondly, the existing connection between the protective cover and the needle is usually achieved through simple plug-in. Although this connection method is convenient, it has safety hazards. During the plug-in process, the needle is easy to fall off, which may not only cause contamination, but also cause harm to medical staff and patients. Utility Model Content

[0006] The utility model provides an intravenous infusion needle with a protective cover, aiming to solve the problem that the existing protective cover has a small caliber, and medical staff may encounter difficulties when pulling out and inserting the needle, and it is difficult to ensure that the intravenous needle can be inserted into the protective cover at one time every time; this not only affects the work efficiency, but also may increase the risk of needle injury; the existing connection between the protective cover and the needle is usually achieved by simple plug-in; although this connection method is convenient, it has safety hazards; during the plug-in process, the needle is easy to fall off, which may not only cause pollution, but also may cause harm to medical staff and patients.

[0007] The utility model is implemented as follows: an intravenous infusion needle with a protective sleeve comprises a catheter connector; an infusion needle connected to one side of the catheter connector; a protective member arranged on the outside of the infusion needle; the protective member comprises: a protective sleeve arranged on the outside of the infusion needle, the protective sleeve is in a cylindrical shape with one end face being open; an annular inner spiral groove is provided at the inner side position of the protective sleeve adjacent to the opening; an annular outer spiral groove is provided on the outer wall of one side of the catheter connector adjacent to the infusion needle; a guide cover is provided on the side of the protective sleeve opposite to the infusion needle, the guide cover is in a trumpet shape with two ends connected.

[0008] Preferably, the side of the catheter connector away from the infusion needle is connected to an infusion catheter, the end of the infusion catheter away from the infusion needle is connected to a colored tee, and the other two ports of the colored tee are respectively provided with a white end cap and a heparin cap.

[0009] Preferably, a one-handed liquid-stopping clamp is provided on the infusion catheter.

[0010] Preferably, a single-wing needle holding handle is provided at the middle position of the catheter connector, and a plurality of anti-slip protrusions are provided on the outer surface of the single-wing needle holding handle.

[0011] Preferably, the protective sleeve is provided with an annular anti-slip pattern at an outer side away from the guide cover.

[0012] Preferably, the outer diameter of the catheter connector is matched with the inner diameter of the protective sleeve.

[0013] Preferably, the infusion needle is a metal needle with a beveled tip.

[0014] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0015] First, by arranging a protective part on the outside of the infusion needle, it can not only protect the infusion needle from contamination and reduce contact with the external environment, thereby reducing the risk of infection, but also the inner annular spiral groove on the inside cooperates with the thread of the outer annular spiral groove on the outside of the catheter connector to ensure the tightness and stability of the connection; this design allows the protective cover to be easily rotated on the infusion needle to adjust or fix the position, while maintaining sufficient stability to prevent accidental falling off or leakage; in addition, the trumpet-shaped design of the guide cover ensures the smoothness and safety of the infusion needle when inserted into the protective cover, avoiding the risk of puncture due to a small caliber.

[0016] Second: The design of the single-wing needle holder fully considers the convenience and comfort of medical staff during operation. Its single-wing structure allows medical staff to grasp and fix the infusion needle more easily, especially during insertion or removal operations; the setting of the anti-slip protrusion not only increases the friction between the fingers and the needle holder to prevent slipping, but also provides additional support points for the fingers of medical staff, making the grip more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the one-handed liquid-stopping clamp of the utility model;

[0020] Figure 4 It is a schematic diagram of the connection structure between the catheter connector and the protective cover of the infusion needle machine of the utility model;

[0021] In the figure: 1. Catheter connector; 2. Infusion needle; 301. Protective sleeve; 302. Inner spiral groove; 303. Outer spiral groove; 304. Guide cover; 4. Infusion catheter; 5. Colored tee; 6. White end cap; 7. Heparin cap; 8. One-hand stop clamp; 9. Single-wing needle handle; 10. Anti-slip protrusion; 11. Anti-slip texture. DETAILED DESCRIPTION

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0023] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] The utility model embodiment provides an intravenous infusion needle with a protective cover, such as Figure 1-4As shown, it includes a catheter connector 1; an infusion needle 2 connected to one side of the catheter connector 1; a protective member arranged on the outside of the infusion needle 2; the protective member includes: a protective sleeve 301 arranged on the outside of the infusion needle 2, the protective sleeve 301 is a cylindrical arrangement with one end face being open; an annular inner spiral groove 302 is provided at the inner side position of the protective sleeve 301 adjacent to the opening; an annular outer spiral groove 303 is provided on the outer wall of the side of the catheter connector 1 adjacent to the infusion needle 2; a guide cover 304 is provided on the side of the protective sleeve 301 opposite to the infusion needle 2, and the guide cover 304 is a trumpet-shaped arrangement with two ends connected.

[0025] It should be noted that, due to the small caliber of the existing protective cover, medical staff may encounter difficulties when pulling out and inserting the needle, and it is difficult to ensure that the intravenous needle can be inserted into the protective cover at one time every time; this not only affects work efficiency, but also may increase the risk of needle injury; the existing connection between the protective cover and the needle is usually achieved by simple plug-in; although this connection method is convenient, it has safety hazards; during the plug-in process, the needle is easy to fall off, which may not only cause pollution, but also may cause harm to medical staff and patients. The present solution provides a protective piece on the outside of the infusion needle 2, which can not only The infusion needle 2 is protected from contamination and its contact with the external environment is reduced, thereby reducing the risk of infection. The inner annular spiral groove 302 cooperates with the thread of the outer annular spiral groove 303 on the outer side of the catheter connector 1 to ensure the tightness and stability of the connection. This design allows the protective sleeve 301 to be easily rotated on the infusion needle 2 to adjust or fix the position, while maintaining sufficient stability to prevent accidental falling off or leakage. In addition, the trumpet-shaped design of the guide cover 304 ensures the smoothness and safety of the infusion needle 2 when it is inserted into the protective sleeve 301, avoiding the risk of puncture due to a small caliber.

[0026] Specifically, in this embodiment, the scheme mainly includes a catheter connector 1, an infusion needle 2 and a protective member; one side of the catheter connector 1 is connected to the infusion needle 2, so that the liquid can flow into the infusion needle 2 through the catheter connector 1. This connection is usually tight to ensure that the liquid does not leak. The protective member includes a protective sleeve 301 arranged on the outside of the infusion needle 2. The protective sleeve 301 is a cylindrical device designed on the outside of the infusion needle 2, and its open end surface allows the infusion needle 2 to pass through. The main function of the protective sleeve 301 is to protect the infusion needle 2 from being contaminated and reduce contact with the external environment, thereby reducing the risk of infection. The protective sleeve 301 is usually made of medical grade materials. The protective sleeve 301 is made of a material that can resist common hospital pathogens and is harmless to the human body. The annular inner spiral groove 302 on the inner side of the protective sleeve 301 and the annular outer spiral groove 303 on the outer side of the catheter connector 1 are threadedly matched. This design allows the protective sleeve 301 to rotate easily on the infusion needle 2, but at the same time maintains a certain stability. The guide cover 304 is a trumpet-shaped device, which is located on the side of the protective sleeve 301 opposite to the infusion needle 2. The function of the guide cover 304 is to provide guidance when the infusion needle 2 is inserted into the protective sleeve 301, so that it can smoothly enter the protective sleeve 301, avoiding stabbing of the staff due to the small diameter of the protective sleeve 301 when the needle is withdrawn.

[0027] In a further preferred embodiment of the present invention, Figure 1-2 As shown, the side of the catheter connector 1 away from the infusion needle 2 is connected to the infusion catheter 4, and the end of the infusion catheter 4 away from the infusion needle 2 is connected to the colored tee 5, and the other two ports of the colored tee 5 are respectively provided with a white end cap 6 and a heparin cap 7.

[0028] In this embodiment, the colored tee 5 is a three-port connector that allows liquid to be diverted from one catheter to the other two catheters. The white end cap 6 is usually a closed port, which is used to close a port when it is not in use to prevent contamination or accidental connection; the heparin cap 7 is a port with a special interface that allows specific medical equipment (such as a syringe) to be connected to it for operations such as drawing blood samples and injecting drugs.

[0029] In a further preferred embodiment of the present invention, Figure 1-3 As shown, a single-handed liquid-stopping clamp 8 is provided on the infusion catheter 4 .

[0030] In this embodiment, the one-handed liquid-stopping clamp 8 allows medical personnel to flexibly adjust the flow of liquid according to the patient's needs and actual conditions. By precisely controlling the flow of liquid, the one-handed liquid-stopping clamp 8 helps reduce medical risks, such as over- or under-infusion.

[0031] In a further preferred embodiment of the present invention, Figure 1-2As shown, a single-wing needle holding handle 9 is provided at the middle position of the catheter connector 1 , and a plurality of anti-slip protrusions 10 are provided on the outer surface of the single-wing needle holding handle 9 .

[0032] In this embodiment, the single-wing needle holding handle 9 is designed to facilitate the medical staff to hold and operate the infusion needle 2. Its single-wing structure allows the medical staff to more easily grasp and fix the infusion needle 2, especially when inserting or removing the infusion needle 2; the anti-slip protrusion 10 can effectively increase the friction between the medical staff's fingers and the needle holding handle, thereby preventing slippage due to hand sweat or other factors during operation; at the same time, the anti-slip protrusion 10 can also provide additional support points for the medical staff's fingers, making the grip more stable.

[0033] In a further preferred embodiment of the present invention, Figure 1-4 As shown, the protective sleeve 301 is provided with an annular anti-slip pattern 11 at an outer side away from the guide cover 304 .

[0034] In this embodiment, when the medical staff or the patient holds the protective sleeve 301, the annular anti-skid pattern 11 can effectively increase the friction of the holding surface; this design helps to prevent accidental slipping due to sweaty hands, wetness or other factors.

[0035] In a further preferred embodiment of the present invention, Figure 1-2 As shown, the outer diameter of the catheter connector 1 is matched with the inner diameter of the protective sleeve 301 .

[0036] In this embodiment, the outer diameter of the catheter connector 1 is precisely designed to ensure that it perfectly matches the inner diameter of the protective sleeve 301; this match ensures that the catheter connector 1 can be smoothly inserted into the protective sleeve 301 while avoiding excessive or small gaps, thereby ensuring the stability and sealing of the connection.

[0037] In a further preferred embodiment of the present invention, Figure 1-4 As shown, the infusion needle 2 is a metal needle body with a beveled tip.

[0038] In this embodiment, the design of the inclined surface has a certain guiding property, which helps to ensure that the infusion needle 2 moves along a predetermined path during the puncture process, thereby reducing the risk of deviation from the target.

[0039] Working principle: When the device is used, one side of the catheter connector 1 is connected to the infusion needle 2, so that the liquid can flow into the infusion needle 2 through the catheter connector 1. This connection is usually tight to ensure that the liquid will not leak. The protective part includes a protective sleeve 301 arranged on the outside of the infusion needle 2. The protective sleeve 301 is a cylindrical device designed on the outside of the infusion needle 2, and its open end surface allows the infusion needle 2 to pass through. The main function of the protective sleeve 301 is to protect the infusion needle 2 from contamination and reduce contact with the external environment, thereby reducing the risk of infection. The protective sleeve 301 is usually made of medical-grade materials that can resist common hospital pathogens and are harmless to the human body. The annular inner spiral groove 302 on the inner side of the protective sleeve 301 and the annular outer spiral groove 303 on the outer side of the catheter connector 1 are threadedly matched. This design allows the protective sleeve 301 to rotate easily on the infusion needle 2, but at the same time maintains a certain stability;

[0040] The guide cover 304 is a trumpet-shaped device, which is located on the side of the protective cover 301 opposite to the infusion needle 2. The function of the guide cover 304 is to provide guidance for the infusion needle 2 to be inserted into the protective cover 301, so that it can smoothly enter the protective cover 301, and avoid stabbing the staff due to the small diameter of the protective cover 301 when the needle is withdrawn;

[0041] The colored tee 5 is a three-port connector that allows liquid to be diverted from one catheter to the other two catheters. The white end cap 6 is usually a closed port, which is used to close a port when it is not in use to prevent contamination or accidental connection. The heparin cap 7 is a port with a special interface, which allows specific medical equipment (such as a syringe) to be connected to it for operations such as drawing blood samples and injecting drugs.

[0042] The single-wing needle holding handle 9 is designed to facilitate medical staff to hold and operate the infusion needle 2. Its single-wing structure allows medical staff to more easily grasp and fix the infusion needle 2, especially when inserting or removing the infusion needle 2; the anti-slip protrusion 10 can effectively increase the friction between the medical staff's fingers and the needle holding handle, thereby preventing slippage due to hand sweat or other factors during operation; at the same time, the anti-slip protrusion 10 can also provide additional support points for the medical staff's fingers, making the grip more stable.

[0043] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0044] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0045] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0046] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. An intravenous infusion needle with a protective cover, characterized in that: include: Catheter connector; an infusion needle connected to one side of the catheter connector; A protective member disposed outside the infusion needle; The protective element comprises: A protective sleeve arranged outside the infusion needle, wherein the protective sleeve is in a cylindrical shape with one end surface being open; The protective sleeve is provided with an annular inner spiral groove at an inner side position adjacent to the opening; An annular outer spiral groove is formed on the outer wall of one side of the catheter connector adjacent to the infusion needle; A guide cover is arranged on the side of the protective sleeve opposite to the infusion needle, and the guide cover is a trumpet-shaped arrangement with two ends connected.

2. An intravenous infusion needle with a protective cover as claimed in claim 1, characterized in that: The side of the catheter connector away from the infusion needle is connected to an infusion catheter, and the end of the infusion catheter away from the infusion needle is connected to a colored tee, and the other two ports of the colored tee are respectively provided with a white end cap and a heparin cap.

3. An intravenous infusion needle with a protective cover as claimed in claim 2, characterized in that: A single-handed liquid-stopping clamp is provided on the infusion catheter.

4. The intravenous infusion needle with a protective cover as claimed in claim 2, characterized in that: A single-wing needle holding handle is arranged in the middle of the catheter connector, and a plurality of anti-slip protrusions are arranged on the outer surface of the single-wing needle holding handle.

5. The intravenous infusion needle with a protective cover as claimed in claim 1, characterized in that: The outer side of the protective sleeve away from the guide cover is provided with an annular anti-skid pattern.

6. An intravenous infusion needle with a protective cover as claimed in claim 5, characterized in that: The outer diameter of the catheter connector is matched with the inner diameter of the protective sleeve.

7. An intravenous infusion needle with a protective cover as claimed in claim 2, characterized in that: The infusion needle is a metal needle body with a beveled tip.

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