CN203227150U - Linking structure of syringe piston and three-guide-piece core rod - Google Patents

Abstract

The utility model belongs to the field of medical appliances , and in particular relates to a link structure between a syringe piston and three guide core rods. The utility model is realized in the following way: a link structure between a syringe piston and three guide core rods, The feature is: a fixed core rod head is processed at the front end of the three core rods, a piston is installed on the fixed core rod head, a core rod push handle is processed at the end of the three core rods, and a core rod push handle is processed at the middle of the three core rods. There are three guide pieces processed. In summary, the utility model has a fixed ring on the top of the fixed core rod head 3, so the piston 2 is guaranteed to work stably and reliably. Due to the role of the guide piece 5, the three-piece core can be guaranteed The work of the rod 4 in the syringe 1 is stable and reliable.

Description

Linking structure of a syringe piston and three guide piece core rods

technical field

The utility model belongs to the field of medical appliances, in particular to a link structure between a syringe piston and three guide piece core rods.

Background technique

At present, the core rods of clinically used syringes generally have a structural design that wastes raw materials. Because clinically used syringes are disposable, the waste is quite amazing. When medical staff suck medicine and inject, the syringe core rods are pushed and pulled. It is also more laborious, and the hands are easy to slip off from the edge of the coat, resulting in medical accidents.

Utility model content

The purpose of this utility model is to overcome the above-mentioned shortcomings, and provide a link structure between the syringe piston and the core rods of the three guide pieces.

The utility model is realized in the following way: a link structure between a syringe piston and three core rods of guide plates, which is characterized in that: fixed core rod heads are processed on the front ends of the three core rods, and a fixed core rod head is installed on the top of the fixed core rod heads. The piston is processed with a core rod push handle at the end of the three core rods, and three guide plates are processed at the middle position of the three core rods.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Fig. 1 is a main sectional view of the utility model.

FIG. 2 is a cross-sectional view of “A-A” in FIG. 1 .

Fig. 3 is a cross-sectional view along "B-B" of Fig. 1 .

Fig. 4 is a "C-C" sectional view of Fig. 1 .

The labels in the figure are explained as follows:

1. Syringe, 2. Piston, 3. Fixed mandrel head, 4. Three-piece mandrel, 5. Guide plate, 6. Syringe flanging, 7. Mandrel push handle.

Detailed ways

The syringe 1 of the utility model adopts PP polypropylene material to be processed and formed in the mold at one time. The function of the syringe 1 is to store the liquid medicine and make the piston 2 slide in the syringe 1. Processing and molding, the function of the piston 2 is to inject the medicinal solution stored in the syringe 1 through the needle through the needle through the thrust of the core rod push handle 7, or inject the medicinal solution stored in the syringe 1 through the needle for other operations etc., the fixed core rod head 3 is made of PP polypropylene material and processed in a mold at one time, and a fixed ring is processed on the fixed core rod head 3, and its function is to fix the piston 2. The three core rods 4 are made of PP polypropylene material in the mold. One-time processing and molding in the mold, its function is to ensure that the piston 2 above the fixed core rod head 3 works stably and reliably, and the guide plate 5 is made of PP polypropylene material and processed in one time in the mold, and its function is to ensure that the three-piece core rod 4 is in the needle cylinder. 1. The inner working is stable and reliable. The needle cylinder flanging 6 is made of PP polypropylene material and processed in the mold at one time. Its function is that the operation is convenient, stable and reliable during injection. When its effect is exactly work, guarantees that three core rods 4 work stably and reliably.

In summary, because the utility model has a fixed ring processed on the top of the fixed core rod head 3, the piston 2 is guaranteed to work stably and reliably. Due to the role of the guide plate 5, it can ensure that the three core rods 4 are positioned in the needle barrel 1. The work inside is stable and reliable.

Claims (1)

1. the link structure of a syringe piston and three prerotation vane core bars, it is characterized in that: the front end at three core bars is processed with fixedly pin head, piston fixedly is being installed above the pin head, be processed with core bar at the end of three core bars and push away handle, be processed with three prerotation vanes at the medium position of three core bars.

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