Disposable sterile medicine dissolving syringe

Abstract

The utility model relates to a disposable sterile molten medicine injector, and belongs to the technical field of medical injection instruments. The disposable sterile medicine dissolving injector comprises a needle cylinder, a push rod, a piston and a pressing plate, and the piston is arranged in the needle cylinder through the push rod; the upper end of the push rod extends to the outer end of the needle cylinder and is provided with a pressing plate Wing plates are symmetrically arranged on the two sides of the upper end of the needle cylinder; the wing plate is of a bent arc structure; the push rod is of a long structure with a cross-shaped section; a receding opening is formed in the push rod below the pressing plate. The disposable sterile medicine dissolving syringe is compact in structure and ingenious in design, and the finger pulp of the thumb of an operator is attached to the surface of the pressing plate in the using process; the problem that an existing syringe is unreasonable in structure and prone to slipping off is solved, and the disposable sterile dissolved medicine injection syringe is particularly suitable for being used for disposable injection of sterile dissolved medicine.

Description

Technical Field

[0001] The utility model relates to a disposable sterile medicine melting syringe, belonging to the technical field of medical injection devices. Background Art

[0002] In the field of hospital medicine preparation, medical staff need to use syringes to complete the injection work of sterile medicine melting. Commonly used sterile medicine melting syringes include a syringe barrel, a push rod, a piston and a pressing plate; a piston is slidably installed inside the syringe barrel; a push rod is installed on the piston; a pressing plate is installed at the upper end of the push rod after extending to the outside of the syringe barrel; wing plates are symmetrically arranged at the upper end of the syringe barrel. Although the existing syringes can meet the needs of medical staff to a certain extent, their wing plates and pressing plates adopt a horizontal structure, which has the characteristics of being inconvenient to hold and being extremely easy to slip. In order to prevent slipping, medical staff need to increase the holding force during the medicine preparation process to complete the medicine preparation work. The medical staff in the hospital pharmacy have the characteristics of heavy workload and need to carry out frequent and repeated medicine preparation work every day. Due to the structural design of the existing syringes, it is extremely easy to cause occupational diseases such as finger deformation of medical staff during the process of holding the syringe with great force for a long time. At the same time, the easy-slip characteristic of the existing syringe also has the problem of being extremely easy to prick the operator. Therefore, it is necessary to develop a new syringe to solve the above problems existing in the existing syringe. Summary of the Invention

[0003] The purpose of the utility model is to provide a disposable sterile medicine melting syringe with a compact structure and ingenious design to solve the problem of unreasonable structure and easy slipping of the existing syringe.

[0004] The technical solution of the utility model is as follows:

[0005] A disposable sterile medicine melting syringe, including a syringe barrel, a push rod, a piston and a pressing plate. The piston is installed in the syringe barrel through the push rod; the upper end of the push rod extends to the outer end of the syringe barrel and then a pressing plate is arranged; wing plates are symmetrically arranged on both sides of the upper end of the syringe barrel; its characteristics are that: the wing plates are in a curved arc structure; the push rod is in a long structure with a cross-shaped cross-section; an avoidance opening is arranged on the push rod below the pressing plate.

[0006] The avoidance opening is in a wedge-shaped structure or an arc-shaped structure.

[0007] Multiple breaking openings are arranged at the lower part of the push rod.

[0008] The breaking openings are in a triangular structure.

[0009] The pressing plate is in an inwardly concave circular structure or an inwardly concave long structure.

[0010] The piston is in a cylindrical structure or a hemispherical structure.

[0011] A limiting notch is arranged on the syringe barrel inside the wing plate.

[0012] A liquid discharge barrel is arranged at the bottom of the syringe barrel; locking threads are arranged on the surface of the liquid discharge barrel.

[0013] A connecting tension rib is arranged between the wing plate and the syringe barrel.

[0014] Marking scales are arranged on the surface of the syringe barrel.

[0015] The advantages of the present utility model are as follows:

[0016] This disposable sterile medicine dissolving syringe has a compact structure and ingenious design. During use, the pulp of the operator's thumb will fit with the surface of the pressing plate; after the middle finger and index finger are located under the wing plate, they will fit with it. In this way, when the operator uses this syringe, the operator can use the thumb, middle finger and index finger to clamp the syringe without using too much hand-held force, thereby solving the problem that the existing syringe has an unreasonable structure and is easy to slip, and is especially suitable for the need of disposable injection of sterile medicine dissolution. Description of the Drawings

[0017] Figure 1 is the structural schematic diagram of the present utility model;

[0018] Figure 2 is the sectional structural schematic diagram of the present utility model;

[0019] Figure 3 is the deformed structural schematic diagram of the present utility model;

[0020] Figure 4 is the deformed structural schematic diagram of the present utility model;

[0021] Figure 5 is Figure 4 the front view structural schematic diagram of;

[0022] Figure 6 is the structural schematic diagram of the push rod of the present utility model;

[0023] Figure 7 is the deformed structural schematic diagram of the push rod of the present utility model;

[0024] Figure 8 is Figure 7 the front view structural schematic diagram of;

[0025] Figure 9 is the deformed structural schematic diagram of the present utility model;

[0026] Figure 10 is the deformed structural schematic diagram of the present utility model;

[0027] Figure 11Schematic diagram of the deformation structure of the present utility model;

[0028] Figure 12 is Figure 9 the enlarged schematic diagram of the structure at A in

[0029] Figure 13 is Figure 10 the enlarged schematic diagram of the structure at B in

[0030] Figure 14 is Figure 11 the enlarged schematic diagram of the structure at C in

[0031] In the figure: 1, syringe barrel; 2, push rod; 3, piston; 4, pressing plate; 5, wing plate; 6, avoidance opening; 7, break-off opening; 8, limiting notch; 9, liquid discharge cylinder; 10, locking thread; 11, connecting tension rib. Specific embodiments

[0032] This disposable sterile drug-dissolving syringe includes a syringe barrel 1, a push rod 2, a piston 3, and a pressing plate 4 (see the attached Figure 1 , 3 and 4).

[0033] A piston 3 is installed in the syringe barrel 1 through the push rod 2 (see the attached Figure 6 and 7 ). The piston 3 has a cylindrical structure. The bottom of the piston 3 has a conical structure or a horizontal structure.

[0034] The upper end of the push rod 2 extends to the outer end of the syringe barrel 1 and then a pressing plate 4 is provided; the pressing plate 4 has an inwardly concave circular structure or an inwardly concave long structure (see the attached Figure 1 and 4 ).

[0035] Wing plates 5 are symmetrically arranged on both sides of the upper end of the syringe barrel 1; the wing plates 5 have a curved arc structure (see the attached Figure 9 , 10 and 12).

[0036] The push rod 2 has a long structure with a cross-shaped cross-section; an avoidance opening 6 is provided on the push rod 2 below the pressing plate 4. The avoidance opening 6 has a wedge-shaped structure or an arc-shaped structure (see the attached Figure 6 , 7 and 8). The purpose of setting the avoidance opening 6 like this is that when medical staff place their fingers on both sides of the push rod 2 to pull the pressing plate 4, the avoidance opening 6 can conform to the finger shape of the medical staff, avoiding the problem of the push rod 2 rubbing against the fingers.

[0037] A plurality of break-off openings 7 are provided at the lower part of the push rod 2. The break-off openings 7 have a triangular structure (see the attached Figure 6 , 7When the disposable sterile medicine-dissolving syringe is used up during operation, the push rod 2 can be broken along the breaking notch 7, thereby avoiding the problem of repeated use of the syringe.

[0038] A limiting notch 8 is arranged on the syringe barrel 1 inside the wing plate 5 (see the attached drawings of the specification Figure 10 and 13 ). A connecting tension rib 11 is arranged between the wing plate 5 and the syringe barrel 1.

[0039] A liquid discharge cylinder 9 is arranged at the bottom of the syringe barrel 1; a locking thread 10 is arranged on the surface of the liquid discharge cylinder 9 (see the attached drawings of the specification Figure 11 and 14 ). During operation, the injection needle can be connected to the liquid discharge cylinder 9. The purpose of setting the locking thread 10 is to avoid the problem that the injection needle and the liquid discharge cylinder 9 are easily separated.

[0040] A marking scale is arranged on the surface of the syringe barrel 1. The purpose of setting the marking scale is to facilitate medical staff to observe the liquid medicine in the syringe barrel 1.

[0041] The disposable sterile medicine-dissolving syringe has a compact structure and ingenious design. During the use process, the pulp of the thumb of the operator will fit with the surface of the pressing plate 4; after the middle finger and the index finger are located below the wing plate 5, they will fit with it. In this way, when the operator uses the syringe, the operator can use the thumb, the middle finger and the index finger to hold the syringe without using too much hand-held force, thereby solving the problem that the existing syringe has an unreasonable structure and is easy to slip, and is especially suitable for the need of disposable injection of sterile medicine dissolution.

Claims

1. A disposable sterile drug-dissolving syringe, comprising a syringe barrel (1), a push rod (2), a piston (3) and a pressing plate (4), wherein the piston (3) is installed in the syringe barrel (1) through the push rod (2); a pressing plate (4) is arranged at the upper end of the push rod (2) after the upper end of the push rod (2) extends to the outer end of the syringe barrel (1); wing plates (5) are symmetrically arranged on both sides of the upper end of the syringe barrel (1); characterized in that: The described wing plate (5) has a curved arc structure; the described push rod (2) has a long structure with a cross-shaped cross-section; an avoidance opening (6) is provided on the push rod (2) below the pressing plate (4).

2. The disposable sterile medicine-dissolving syringe according to claim 1, wherein: The described avoidance opening (6) has a wedge-shaped structure or an arc-shaped structure.

3. A disposable sterile drug-dissolving syringe according to claim 1, characterized in that: A plurality of breaking openings (7) are provided at the lower part of the push rod (2).

4. The disposable sterile drug-dissolving syringe according to claim 3, wherein: The described breaking opening (7) has a triangular structure.

5. A disposable sterile drug-dissolving syringe according to claim 1, characterized in that: The described pressing plate (4) has an inwardly concave circular structure or an inwardly concave long structure.

6. The disposable sterile drug-dissolving syringe according to claim 1, characterized in that: The described piston (3) has a cylindrical structure.

7. A disposable sterile drug-dissolving syringe according to claim 6, characterized in that: The bottom of the described piston (3) has a conical structure.

8. A disposable sterile drug-dissolving syringe according to claim 1, characterized in that: A limit notch (8) is provided on the syringe barrel (1) inside the wing plate (5).

9. A disposable sterile drug-dissolving syringe according to claim 1, characterized in that: A liquid discharge barrel (9) is provided at the bottom of the syringe barrel (1); a locking thread (10) is provided on the surface of the liquid discharge barrel (9).

10. The disposable sterile drug-dissolving syringe according to claim 1, characterized in that: A connecting rib (11) is provided between the wing plate (5) and the syringe barrel (1).

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