Medical syringe rubber needle protective cap

Abstract

The utility model belongs to the technical field of syringe needle protective caps, and particularly relates to a medical syringe rubber needle protective cap which comprises a syringe and a needle head at the end of the syringe. The upper end of the injector is provided with a needle protection cap for protecting a needle head, and the inner side of the needle protection cap is provided with a protection sleeve to form an inner-outer double-layer protection effect, so that external bacteria are prevented from polluting the inside; a positioning block is arranged at the upper end of the protective sleeve to limit the position of the end of the needle head, a blocking block for buffering external force is arranged at the upper end of the positioning block, and the situation that the needle head pokes outwards due to the fact that external acting force is directly transmitted inwards is prevented. According to the utility model, an inner and outer double-layer sealing protection effect can be formed, an internal needle head is effectively prevented from being polluted by an external environment, and a multi-layer blocking and buffering effect can be formed in a needle point area, so that the needle head is prevented from being poked outwards and the subsequent use effect is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of syringe needle protective caps, in particular to a medical syringe rubber needle protective cap. Background Art

[0002] The needle cap of a medical syringe is an important component of the syringe. It is usually located above the needle of the syringe to protect the needle and prevent it from being contaminated or damaged. The needle cap is usually made of durable and easy-to-sterilize materials such as plastic or rubber.

[0003] At present, in actual application, it is found that most existing needle caps for syringes are of one-piece structure. They may be contaminated during storage, transportation or use, and they may become a transmission channel for bacteria and other pathogens, which may easily increase the risk of infection for patients.

[0004] In order to solve the above problems, the present application proposes a rubber needle cap for a medical syringe. Utility Model Content

[0005] The purpose of the utility model is to provide a rubber needle protective cap for a medical syringe, which solves the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model discloses a rubber needle cap for a medical syringe, comprising: a syringe and a needle at its end; a needle cap is provided at the upper end of the syringe for protecting the needle; a protective sleeve is provided on the inner side of the needle cap to form an inner and outer double-layer protective effect, thereby preventing external bacteria from contaminating the interior; a positioning block is provided at the upper end of the protective sleeve to limit the end position of the needle; a barrier block is provided at the upper end of the positioning block to buffer external forces, thereby preventing external forces from being directly transmitted inwards and causing the needle to poke out.

[0008] Furthermore, an inner spacer is provided at the lower end of the protective sleeve and is sleeved on the inner side of the bottom of the needle shield. A positioning sleeve is provided on the outer side of the inner spacer to form an annular installation space for fixing the bottom part of the needle shield.

[0009] Furthermore, a limiting pad is provided on the upper end of the needle guard cap to block foreign objects, and a receiving groove for installing a positioning block is provided inside the limiting pad.

[0010] Furthermore, a guide slope is provided in the inner bottom area of the limiting pad for guiding the positioning block to a predetermined position.

[0011] Furthermore, a positioning hole is provided inside the positioning block to connect with the end of the needle. The inner wall of the positioning hole is squeezed by the inner wall of the limiting pad and tightly presses against the needle to increase resistance and limit it.

[0012] Furthermore, an air cavity is provided inside the barrier block to increase resistance to external forces.

[0013] Furthermore, a conical slope is provided on the outer side of the positioning block for driving the side wall of the positioning hole to retract when it abuts against the side wall of the receiving groove inside the limiting pad.

[0014] The utility model has the following beneficial effects:

[0015] The utility model can form an inner and outer double-layer sealing process by adding an inner septum during use by utilizing the cooperation between the inner septum and the needle guard cap, effectively preventing the external environment from contaminating the needle, thereby preventing infection of the patient during subsequent use. Compared with the existing integrated needle guard cap, it can provide stable sealing performance and protect the patient from cross infection.

[0016] The utility model positions the positioning block to a predetermined position by means of a guide slope, and then uses a barrier block to press against the top of the limit pad to form a buffer area, and the inner wall of the positioning block presses against the needle to increase resistance, thereby forming multiple blocking effects when touching foreign objects to prevent the needle from piercing the user and injuring the user, thereby minimizing the risk during use and ensuring the effectiveness of subsequent use of the syringe.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the needle guard cap of the present invention;

[0021] Figure 3 This is a schematic structural diagram of the connection between the needle and the needle guard cap of the present invention;

[0022] Figure 4 This is a schematic diagram of the exploded structure of the positioning block and needle guard cap of the utility model;

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] In the figure: 1. syringe; 2. needle; 3. needle cap; 4. positioning sleeve; 5. inner spacer; 6. protective sleeve; 7. limit pad; 8. positioning block; 9. positioning hole; 10. guide slope; 11. barrier block; 12. air cavity; 13. storage groove; 14. tapered slope. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] See also Figure 1-4 As shown, the utility model is a rubber needle cap for medical syringes, comprising: a syringe 1 and a needle 2 at its end; a needle cap 3 is provided on the upper end of the syringe 1 to protect the needle 2, and a protective sleeve 6 is provided on the inner side of the needle cap 3 to form an inner and outer double-layer protection effect to prevent external bacteria from contaminating the inside;

[0028] A positioning block 8 is provided at the upper end of the protective sleeve 6 to limit the end position of the needle 2. A blocking block 11 is provided at the upper end of the positioning block 8 to buffer the external force and prevent the external force from being directly transmitted inward and causing the needle 2 to poke outward.

[0029] This embodiment provides a needle protection mechanism with multiple protection effects. The protective sleeve 6 and the needle cap 3 cooperate to form an inner and outer double-layer protection effect, which can effectively prevent the external environment from contaminating the internal needle 2. Secondly, the blocking block 11 can cooperate with the adjacent structure at the needle tip position of the needle 2 to form a multiple blocking effect and buffer the external force to prevent the needle 2 from being poked out, thereby ensuring the subsequent use effect.

[0030] Among them, the lower end of the protective sleeve 6 is provided with an inner spacer sleeve 5 which is sleeved on the inner side of the bottom of the needle guard cap 3, and is used to form a connection and limit with the bottom mechanism of the needle 2. A positioning sleeve 4 is provided on the outer side of the inner spacer sleeve 5 to form an annular installation space for fixing the bottom part of the needle guard cap 3.

[0031] Among them, a limiting pad 7 is provided on the upper end of the needle guard cap 3 to block foreign objects, and a receiving groove 13 for installing the positioning block 8 is opened inside the limiting pad 7 to prevent the mechanism from deviating and affecting the blocking effect.

[0032] The inner bottom area of the limiting pad 7 is provided with a guide slope 10 for guiding the positioning block 8 to a predetermined position to ensure subsequent blocking and buffering protection effects.

[0033] Among them, a positioning hole 9 is opened inside the positioning block 8 to connect to the end of the needle 2. The inner wall of the positioning hole 9 is squeezed by the inner wall of the limiting pad 7 and tightly presses against the needle 2 to increase resistance and limit it, so that the upper end contact surface of the needle 2 increases the dispersed force and improves the protection effect.

[0034] The barrier block 11 has an air cavity 12 formed therein to increase resistance to external forces.

[0035] The outer side of the positioning block 8 is provided with a conical slope 14 for driving the side wall of the positioning hole 9 to retract when it abuts against the side wall of the receiving groove 13 inside the limiting pad 7.

[0036] It can be understood that the utility model can form a double-layer sealing protection effect inside and outside, effectively preventing the external environment from polluting the internal needle 2. Secondly, it can also form a multi-layer barrier and buffer effect in the needle tip area to prevent the needle 2 from poking out to ensure the subsequent use effect.

[0037] A specific application of the operating process of this embodiment is: when in use, first pass the bottom of the needle 2 between the positioning sleeve 4 and the inner spacer sleeve 5 to form a limit. At this time, the needle 2 is squeezed by the side wall of the positioning hole 9 to form a blockage, and then when the needle 2 moves up, it drives the protective sleeve 6 to expand outward, and cooperates with the needle cap 3 to form an inner and outer double-layer protection effect. At this time, the guide slope 10 guides the positioning block 8 to the predetermined position, and squeezes the receiving groove 13 outside the positioning block 8 through the side wall of the receiving groove 13, so that the internal pressure of the side wall of the positioning hole 9 further increases the resistance, and fixes the needle. At the same time, the blocking block 11 reaches the top of the receiving groove 13 and presses against the hole wall of its end face, and cooperates with the limiting pad 7 to form a multiple barrier effect, which can effectively prevent the needle from poking out, prevent contamination of the needle, and avoid the needle from injuring the user, making the use of the syringe 1 more stable.

[0038] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0039] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A rubber needle cap for a medical syringe, characterized in that: include: A syringe (1) and a needle (2) at the end thereof; The upper end of the syringe (1) is provided with a needle guard cap (3) for protecting the needle (2), and the inner side of the needle guard cap (3) is provided with a protective sleeve (6) to form an inner and outer double-layer protection effect to prevent external bacteria from contaminating the inside; The upper end of the protective sleeve (6) is provided with a positioning block (8) to limit the end position of the needle (2), and the upper end of the positioning block (8) is provided with a blocking block (11) to buffer external forces, thereby preventing the external force from being directly transmitted inwards and causing the needle (2) to poke outward.

2. The rubber needle cap for a medical syringe according to claim 1, characterized in that: The lower end of the protective sleeve (6) is provided with an inner spacer (5) which is sleeved on the inner side of the bottom of the needle shield (3); the outer side of the inner spacer (5) is provided with a positioning sleeve (4) to form an annular installation space for fixing the bottom part of the needle shield (3).

3. The rubber needle cap for medical syringe according to claim 1, characterized in that: A limiting pad (7) is provided at the upper end of the needle guard cap (3) to block foreign objects, and a receiving groove (13) for installing a positioning block (8) is provided inside the limiting pad (7).

4. The rubber needle cap for medical syringes according to claim 3, characterized in that: The inner bottom area of the limiting pad (7) is provided with a guide slope (10) for guiding the positioning block (8) to a predetermined position.

5. The rubber needle cap for medical syringe according to claim 1, characterized in that: The interior of the positioning block (8) is provided with a positioning hole (9) for docking with the end of the needle (2); the inner wall of the positioning hole (9) is squeezed by the inner wall of the limiting pad (7) and tightly presses against the needle (2) to increase resistance and form a limit.

6. The rubber needle cap for a medical syringe according to claim 1, characterized in that: An air cavity (12) is provided inside the barrier block (11) to increase resistance to external forces.

7. The rubber needle cap for a medical syringe according to claim 1, characterized in that: The outer side of the positioning block (8) is provided with a conical side slope (14) for driving the side wall of the positioning hole (9) to retract when it abuts against the side wall of the receiving groove (13) inside the limiting pad (7).

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