Demonstration injector with protection structure

Abstract

A demonstration injector with a protection structure comprises an injection cylinder and a protection cylinder arranged outside the injection cylinder in a sleeving mode, a push rod with a piston plate is arranged in the injection cylinder, fixing plates which are symmetrical left and right are arranged at the end, away from the injection end, of the injection cylinder, and a needle head is arranged at the injection end of the injection cylinder. A silica gel film covers the end of the protective barrel, a silica gel barrel is arranged on the inner side face of the center of the silica gel film, a sponge block stained with alcohol is arranged in the silica gel barrel, and the tip of the needle head is covered with the sponge block. According to the utility model, the needle head can be comprehensively wiped when penetrating through the needle head, so that the needle head can be sterilized and disinfected, the operation demonstration difficulty is reduced, the needle head is more comprehensively wiped and disinfected, and the needle head is safer and more reliable to use.

Description

Technical Field

[0001] The utility model relates to a syringe, in particular to a demonstration syringe with a protective structure. Background Art

[0002] The syringe is mainly composed of a syringe barrel, a piston, a push rod and a needle. The process of extracting and injecting gas or liquid with a needle is called injection. The syringe consists of a syringe with a small hole at the front end and a matching piston core rod. It is used to inject a small amount of liquid or gas into or extract it from areas that are inaccessible by other methods. When the core rod is pulled out, the liquid or gas is sucked from the small hole at the front end of the syringe, and when the core rod is pushed in, the liquid or gas is squeezed out. Utility model patent CN114177426A discloses an insulin syringe with a needle protection structure, which relates to the field of medical device technology; the lower side of the drive frame is screwed to the lower side of the outer ring wall of the drug storage tube through a hinge, and the upper side of the drive frame is connected to the upper side of the outer ring wall of the drug storage tube through a buckle; the sealing ring is fixed on the right side wall of the drug storage tube and the left side wall of the drive frame; the drive tube is inserted and fixed on the right side wall of the drive frame; the piston plate is arranged inside the drive frame; the push rod is fixed on the right side wall of the piston plate, and the other end of the push rod is inserted into the drive tube; the drive mechanism is arranged on the outside of the push rod; the protective sleeve is fixed on the left side wall of the drug storage tube, and the protective sleeve is sleeved on the outside of the discharge pipe; the protective insert is inserted in the outer peripheral wall of the protective sleeve; the connecting spring is embedded in the outer peripheral wall of the protective sleeve. However, the syringe cannot effectively disinfect the syringe needle, which is not conducive to simplifying the demonstration operation steps of the syringe. Utility Model Content

[0003] In order to solve the above problems, the purpose of the utility model is to provide a demonstration syringe with a protective structure.

[0004] To achieve the above-mentioned purpose, the technical solution of the utility model is: a demonstration syringe with a protective structure, comprising a syringe and a protective cylinder sleeved outside the syringe, a push rod with a piston plate is arranged in the syringe, a left-right symmetrical fixing plate is arranged at the end of the syringe away from the injection end, and a needle is arranged at the injection end of the syringe, characterized in that: the protective cylinder can slide at the injection end of the syringe, the end of the protective cylinder is covered with a silicone film, a silicone cylinder is arranged on the central inner side of the silicone film, a sponge block soaked in alcohol is arranged in the silicone cylinder, and the sponge block covers the tip of the needle.

[0005] Furthermore, the silicone membrane is embedded in the top side wall of the cylindrical fixed end cover, and the fixed end cover is fixedly connected to the end of the protective tube through a threaded structure.

[0006] Furthermore, a push plate with an inwardly recessed inner wall is provided at the other end of the push rod.

[0007] Furthermore, a left-right symmetrical pull plate is provided at one end of the protective tube away from the injection end of the injection tube, and the upper surface of each side pull plate is concave downward.

[0008] Furthermore, the width of the push plate is smaller than the width of the fixed plates on both sides.

[0009] Furthermore, the injection tube and the protective tube are made of medical plastic or glass.

[0010] When the utility model is used, the protective tube is moved toward the fixed plate to make the needle pierce the cotton block and the silicone film. Since a sponge block soaked with alcohol is arranged in the silicone tube, that is, the sponge block is similar to a cotton swab head containing medical alcohol, the needle can be fully wiped when it penetrates, thereby achieving the effect of sterilizing and disinfecting the needle. This not only reduces the difficulty of operation demonstration, but also makes the wiping and disinfection of the needle more comprehensive, and the use is safer and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the main structure of the utility model in a carrying state;

[0012] Figure 2 This is a schematic diagram of the main structure of the utility model in use;

[0013] Figure 3 It is an enlarged structural schematic diagram of the fixed end cover portion of the utility model. DETAILED DESCRIPTION

[0014] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0015] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0016] The present embodiment is described in detail below with reference to the accompanying drawings:

[0017] This embodiment provides a demonstration syringe with a protective structure. Please refer to the accompanying drawings in the specification. Figure 1-3 .

[0018] like Figure 1-3 As shown, a demonstration syringe with a protective structure includes a syringe 1 and a protective cylinder 2 sleeved outside the syringe 1, a push rod 4 with a piston plate 3 is arranged in the syringe 1, a left-right symmetrical fixing plate 5 is arranged at the end of the syringe 1 away from the injection end, and a needle 6 is arranged at the injection end of the syringe 1, characterized in that: the protective cylinder 2 can slide on the injection end of the syringe 1, the end of the protective cylinder 2 is covered with a silicone film 7, a silicone cylinder 8 is arranged on the central inner side surface of the silicone film 7, a sponge block 9 soaked in alcohol is arranged in the silicone cylinder 8, and the sponge block 9 covers the tip of the needle 6.

[0019] Specifically: the silicone membrane 7 is embedded in the top side wall of the cylindrical fixed end cover 10, and the fixed end cover 10 is fixedly connected to the end of the protective tube 2 through a threaded structure. The other end of the push rod 4 is provided with a push plate 11 with an inner wall recessed inward, and the end of the protective tube 2 away from the injection end of the injection cylinder 1 is provided with left-right symmetrical pull plates 12, and the upper surface of each side pull plate 12 is recessed downward, and the width of the push plate 11 is smaller than the width of the fixed plates 5 on both sides. The injection cylinder 1 and the protective tube 2 are made of medical plastic or glass.

[0020] Working principle of the utility model: when in use, the protective tube 2 is moved toward the fixed plate 5, so that the needle 6 pierces the sponge block 9 and the silicone membrane 7. Since the silicone tube 8 is provided with a sponge block 9 soaked with alcohol, that is, the sponge block 9 is similar to the cotton swab head containing medical alcohol, the needle 6 can be fully wiped when it penetrates, thereby playing a role in sterilizing and disinfecting the needle. This not only reduces the difficulty of operation demonstration, but also makes the wiping and disinfection of the needle 6 more comprehensive, and the use is safer and more reliable.

[0021] Of course, the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A demonstration syringe with a protective structure, comprising a syringe barrel (1) and a protective barrel (2) sleeved outside the syringe barrel (1), a push rod (4) with a piston plate (3) is arranged in the syringe barrel (1), a left-right symmetrical fixing plate (5) is arranged at one end of the syringe barrel (1) away from the injection end, and a needle (6) is arranged at the injection end of the syringe barrel (1), characterized in that: The protective tube (2) can slide on the injection end of the injection tube (1), the end of the protective tube (2) is covered with a silicone film (7), a silicone tube (8) is arranged on the central inner side of the silicone film (7), a sponge block (9) soaked in alcohol is arranged in the silicone tube (8), and the sponge block (9) covers the tip of the needle (6).

2. A demonstration syringe with a protective structure according to claim 1, characterized in that: The silicone membrane (7) is embedded in the top side wall of the cylindrical fixed end cover (10), and the fixed end cover (10) is fixedly connected to the end of the protective tube (2) via a threaded structure.

3. A demonstration syringe with a protective structure according to claim 1, characterized in that: The other end of the push rod (4) is provided with a push plate (11) whose inner side wall is recessed inwards.

4. A demonstration syringe with a protective structure according to claim 1, characterized in that: A left-right symmetrical pull plate (12) is provided at one end of the protective cylinder (2) away from the injection end of the injection cylinder (1), and the upper surface of each side pull plate (12) is concave downward.

5. A demonstration syringe with a protective structure according to claim 1, characterized in that: The width of the push plate (11) is smaller than the width of the fixing plates (5) on both sides.

6. A demonstration syringe with a protective structure according to claim 1, characterized in that: The injection tube (1) and the protective tube (2) are made of medical plastic or glass.

Images