CN203227132U - Connecting structure of syringe piston and guide piece core rod - Google Patents

Abstract

The utility model belongs to the field of medical instruments and particularly relates to a connecting structure of a syringe piston and a guide piece core rod. The connecting structure is characterized in that a fixing core rod head is processed at the front end of a crossed core rod, a piston is mounted on the fixing core rod head, a core rod push handle is processed at the tail end of the crossed core rod, and four guide pieces are processed in the middle of the crossed core rod. In conclusion, the guide pieces (5) are processed on the crossed core rod (4), so that the cross section of the crossed core rod (4) can be processed to be quite small and raw materials can be greatly saved; a fixing ring is processed on the fixing core rod head (3), so that firmness and reliability in connecting of the piston (2) and the fixing core rod head (3) can be guaranteed.

Description

A connection structure between a syringe piston and a core rod of a guide piece

technical field

The utility model belongs to the field of medical appliances, in particular to a connection structure between a syringe piston and a core rod of a guide sheet.

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 connection structure between the syringe piston and the guide piece core rod.

The utility model is realized in the following way: a connection structure between the plunger of the syringe and the core rod of the guide plate, which is characterized in that: a fixed core rod head is processed on the front end of the cross core rod, and a piston is installed on the fixed core rod head. The end of the cross core rod is processed with a core rod push handle, and the middle position of the cross core rod is processed with four guide pieces.

Description of drawings

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

Fig. 1 is the 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. Cross 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 the mold at one time, and a fixed ring is processed on the fixed core rod head 3, its function is to fix the piston 2, and the cross core rod 4 is made of PP polypropylene material in the mold. One-time processing and molding in the middle is to ensure that the piston 2 above the fixed core rod head 3 works stably and reliably. The guide piece 5 is made of PP polypropylene material and processed in one time in the mold. Its function is to ensure that the cross core rod 4 is in the syringe 1. The work is stable and reliable. The needle barrel 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 working exactly, ensure that the cross core rod 4 works stably and reliably.

In summary, the utility model can process the cross-section of the cross core rod 4 into a very small one due to the fact that the cross-section of the cross core rod 4 is processed on the top of the cross core rod 4, so that raw materials can be greatly saved. The top of the top is processed with a fixed ring, so it can ensure that the connection between the piston 2 and the fixed core rod head 3 is firm and reliable.

Claims (1)

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

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