Medical injector with easy-to-pull-off needle cap
By setting staggered separation plates on the needle tip and needle cap, the problems of difficult and unsafe needle cap removal operations in existing syringes are solved, enabling quick separation with one hand and improving the ease of use and safety of medical syringes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 常京华
- Filing Date
- 2025-01-20
- Publication Date
- 2026-06-23
AI Technical Summary
Existing medical syringes are difficult to operate when removing the needle cap, which can easily lead to needlestick injuries and contamination risks, affecting work efficiency and safety.
The needle and needle cap are designed with the first and second separating plates arranged alternately, allowing the needle and needle cap to be separated by one-handed operation, simplifying the operation steps and reducing the force required.
It enables quick separation of the needle tip and needle cap with one hand, reducing the risk of needlestick injuries and contamination, improving ease of use and safety, and reducing operational difficulty and material waste.
Smart Images

Figure CN224387857U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical injection equipment technology, and in particular to a medical syringe with an easy-to-remove needle cap. Background Technology
[0002] In the medical field, syringes are among the most commonly used medical devices by healthcare professionals. However, existing medical syringes present several problems during use, particularly in the process of removing the needle cap. Traditional syringes have a tight connection between the needle cap and the needle, often requiring healthcare professionals to apply considerable force when removing the cap. This not only increases the difficulty of the procedure but also increases the risk of needlestick injuries. Needlestick injuries are a common occupational exposure risk for healthcare professionals, potentially leading to the transmission of bloodborne diseases. Furthermore, the tight connection between the needle cap and the needle can cause the cap to detach along with the needle during removal, increasing the risk of contamination of the needle. These problems not only affect the efficiency of healthcare professionals but also pose a potential threat to patient safety. Summary of the Invention
[0003] According to an embodiment of the present invention, a medical syringe with an easy-to-remove needle cap is provided, comprising:
[0004] Syringe body;
[0005] The needle is located at the liquid outlet of the syringe body, and a first separation plate is provided on the needle.
[0006] A needle cap is fitted onto the needle tip, and a second separating plate is provided on the needle cap.
[0007] The first and second separating plates are arranged alternately, and the first and second separating plates are used together to separate the needle cap, needle and syringe body.
[0008] Furthermore, the first separating plate is located at the end of the needle tip near the syringe body, and the second separating plate is located at the end of the needle cap near the syringe body.
[0009] Furthermore, the first separating piece is integrally formed with the needle tip, and the second separating piece is integrally formed with the needle cap.
[0010] Furthermore, the first and second separating plates may have the same or different shapes.
[0011] Furthermore, both the first and second separating plates are arc-shaped plates.
[0012] Furthermore, the syringe body includes: a syringe barrel, a piston, and a piston rod;
[0013] The syringe's dispensing end is connected to the needle, and a piston is slidably connected to the inner wall of the syringe;
[0014] The piston rod is connected to the piston, and the piston rod drives the piston to slide back and forth along the inner wall of the syringe.
[0015] The medical syringe with an easy-to-remove needle cap according to the present invention can separate the needle and needle cap with one hand, saving time, reducing material waste, and improving ease of use; it can reduce the risk of contamination, reduce needlestick injuries, and improve safety; it can also reduce the difficulty of operation and improve user comfort.
[0016] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description
[0017] Figure 1 An exploded view of a medical syringe with an easy-to-remove needle cap according to an embodiment of the present invention;
[0018] Figure 2 This is a front view of a medical syringe with an easy-to-remove needle cap according to an embodiment of the present invention;
[0019] Figure 3 This is a top view of a medical syringe with an easy-to-remove needle cap according to an embodiment of the present invention;
[0020] Figure 4 This is a cross-sectional view of a medical syringe with an easy-to-remove needle cap according to an embodiment of the present invention;
[0021] Figure 5 This is a schematic diagram of an embodiment of a medical syringe with an easy-to-remove needle cap according to the present invention;
[0022] Figure 6 This is a schematic diagram of a second embodiment of a medical syringe with an easy-to-remove needle cap according to the present invention. Detailed Implementation
[0023] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.
[0024] First, combine Figures 1-6 This invention describes a medical syringe with an easy-to-remove needle cap according to an embodiment of the present invention, which is used for simple and convenient separation of the needle cap of a medical syringe and has a wide range of applications.
[0025] like Figures 1-6 As shown, the medical syringe with an easy-to-remove needle cap according to an embodiment of the present invention includes: a syringe body 1, a needle 2, and a needle cap 3.
[0026] Specifically, such as Figures 1-6As shown, the needle 2 is located at the liquid outlet of the syringe body 1. The syringe body 1 is an existing type. The needle 2 is provided with a first separation plate 21. The needle cap 3 is sleeved on the needle 2. The needle cap 3 is provided with a second separation plate 31. The first separation plate 21 and the second separation plate 31 are arranged alternately. The first separation plate 21 and the second separation plate 31 are used together for the separation of the needle cap 3, the needle 2 and the syringe body 1.
[0027] Example 1: As Figure 5 As shown, place the thumb on the second separating piece 31 on the needle cap 3 and push upward with the thumb. Place the index finger on the first separating piece 21 on the needle tip 2 and push downward with the index finger. With a little force, the needle tip 2 and needle cap 3 can be separated with one hand.
[0028] Example 2: Figure 6 As shown, place the thumb under the first separating piece 21 at the upper end of the needle 2, and push upward with the thumb. With a little force, the needle 2 and the syringe body 1 can be separated.
[0029] Example 1 shows the separation of needle 2 and needle cap 3 with one hand, and Example 2 shows the separation of needle 2 and syringe body 1 with one hand. The first separating plate 21 and the second separating plate 31 clearly define the force points and application points, allowing users to operate more intuitively and conveniently. Users can easily remove the needle cap 3 and needle 2 with just one hand, while the other hand can be used to fix the injection site or perform other operations, improving operational flexibility and convenience, especially suitable for applications requiring rapid operation or in space-constrained situations. This simplifies the operation steps, reduces operation time, and improves the efficiency of injection or aspiration, especially in cases requiring large-volume injections or aspirations, significantly saving time and effort for medical personnel. It also improves work efficiency; due to the simpler operation, it reduces syringe damage or fluid waste caused by improper operation, lowering the consumption of medical resources and offering certain economic benefits. Furthermore, it reduces operational difficulty: for users with weak hand strength or operational difficulties, such as the elderly, children, or certain special patients, this design reduces operational difficulty, making it easier for them to use the syringe, improving product applicability and user satisfaction. Enhanced Comfort: The simplified operation reduces user stress and anxiety when using the syringe, making the entire injection or aspiration process more relaxed and comfortable, thus improving the overall user experience. Reduced Contamination Risk: During the removal of the needle cap 3 and needle 2, the needle 2 has less contact with the outside environment, reducing the risk of contamination and ensuring the syringe's hygiene and safety, helping to prevent cross-infection. Reduced Needlestick Injuries: Traditional syringes have a tighter connection between the needle cap 3 and needle 2, often requiring significant force from medical personnel, which can lead to needlestick injuries. The improved design reduces the risk of accidental needlestick injuries to the user or others, improving safety and protecting the health of both medical personnel and patients. Simple Structure and Low Cost: Significant effects can be achieved with only minor modifications to traditional syringes.
[0030] Furthermore, such as Figures 1-6 As shown, in this embodiment, the first separating piece 21 is disposed at the end of the needle tip 2 near the syringe body 1, and the second separating piece 31 is disposed at the end of the needle cap 3 near the syringe body 1. This makes the force point during separation closer to the support point of the syringe body 1, and the force transmission during operation is more direct and efficient.
[0031] Furthermore, such as Figures 1-6 As shown, in this embodiment, the first separating piece 21 is integrally formed with the needle 2, and the second separating piece 31 is integrally formed with the needle cap 3, which enhances the structural strength and makes it more aesthetically pleasing.
[0032] Furthermore, such as Figures 1-6As shown, in this embodiment, the first separating piece 21 and the second separating piece 31 may have the same or different shapes. Identical shapes are more aesthetically pleasing, facilitate uniform mold production, and reduce mold design costs; different separating pieces can improve differentiation and can be tailored to the needs of the needle 2 and needle cap 3, meeting the needs of different user groups and enhancing the user experience.
[0033] Furthermore, such as Figures 1-6 As shown in this embodiment, both the first separating piece 21 and the second separating piece 31 are arc-shaped pieces, which fit the user's fingers better, making it more comfortable for the operator to push the separating pieces, reducing finger fatigue, and at the same time making the appearance smoother and more beautiful.
[0034] Furthermore, such as Figures 1-6 As shown, in this embodiment, the syringe body 1 includes: a syringe 31, a piston 32, and a piston rod 33; the liquid outlet end of the syringe 31 is connected to the needle 2, and the piston 32 is slidably connected to the inner wall of the syringe 31; the piston rod 33 is connected to the piston 32, and the user drives the piston 32 to slide back and forth along the inner wall of the syringe 31 by pushing and pulling the piston rod 33, so as to realize the aspiration and ejection of liquid.
[0035] Above, refer to Figures 1-6 This invention describes a medical syringe with an easy-to-remove needle cap according to an embodiment of the present invention, which enables single-handed separation of the needle and needle cap, saving time, reducing material waste, and improving ease of use; it can reduce the risk of contamination, reduce needlestick injuries, and improve safety; it also reduces operational difficulty and enhances user comfort.
[0036] It should be noted that, in this specification, 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. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes that element.
[0037] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.
Claims
1. A medical syringe with an easy-to-remove needle cap, characterized in that, Include: Syringe body; The needle is disposed at the liquid outlet end of the syringe body, and the needle is provided with a first separation plate; A needle cap, which is fitted onto the needle head, and a second separating piece is provided on the needle cap; The first and second separation plates are arranged alternately, and the first and second separation plates are used together to separate the needle cap, the needle and the syringe body.
2. The medical syringe with the easy-to-remove needle cap as described in claim 1, characterized in that, The first separating piece is disposed at the end of the needle near the syringe body, and the second separating piece is disposed at the end of the needle cap near the syringe body.
3. The medical syringe with the easy-to-remove needle cap as described in claim 1, characterized in that, The first separating piece is integrally formed with the needle tip, and the second separating piece is integrally formed with the needle cap.
4. The medical syringe with the easy-to-remove needle cap as described in claim 1, characterized in that, The first separator and the second separator may have the same or different shapes.
5. The medical syringe with the easy-to-remove needle cap as described in claim 1, characterized in that, Both the first separating plate and the second separating plate are arc-shaped plates.
6. The medical syringe with the easy-to-remove needle cap as described in claim 1, characterized in that, The syringe body includes: a syringe barrel, a piston, and a piston rod; The liquid outlet of the syringe is connected to the needle, and the piston is slidably connected to the inner wall of the syringe. The piston rod is connected to the piston, and the piston rod drives the piston to slide back and forth along the inner wall of the syringe.