What Are The Names Of Rubber Pistons in Medical Syringes?

Rubber pistons in medical syringes are known by a variety of names, depending on the material, application, and standard specifications. Here are some common names and information about them:

Halobutyl rubber pistons

1. Scope of application

Ideal for pre-filled flush syringes. Due to the fact that the pre-filled flush syringe is filled with different flushing fluids and is in long-term contact with the piston during the life of the medical device, higher requirements are placed on the material and performance of the piston. Halobutyl rubber pistons meet this demand due to their excellent physical, chemical, and biological properties.

2. Standard specifications

For example, "Halobutyl rubber piston for prefillable flushing syringes" (T/CAMDI 024-2019), which is a group standard issued by the Medical Device Industry Association of the People's Republic of China, stipulates the requirements for halobutyl rubber pistons for prefillable flushing syringes.

Chlorobutyl rubber pistons

1. Scope of application

It is widely used in medical devices such as pre-fillable syringes and pen injectors. These pistons typically have good sealing, chemical resistance, and biocompatibility.

2. Standard specifications

There are specific industry standards such as YBB 00072004-2015 for chlorobutyl rubber pistons for prefillable syringes and for chlorobutyl rubber pistons and gaskets for pen syringes, such as YBB 0015-2004.

Bromobutyl rubber pistons

1. Scope of application

Also suitable for prefillable syringes, similar to chlorobutyl rubber pistons, bromobutyl rubber pistons have good sealing, chemical resistance, and biocompatibility.

2. Standard specifications

For bromobutyl rubber pistons for prefillable syringes, there are special standards such as YBB 0008-2004 to standardize.

It should be noted that the above names are mainly based on the material and use of the piston, and in actual use, the rubber piston in the medical syringe may also vary according to the specific product model, brand, or manufacturer. In addition, with the continuous progress of medical technology and the continuous updating of standards, more new materials of rubber pistons may appear in the future.

To sum up, the rubber piston in the medical syringe can be called halobutyl rubber piston, chlorobutyl rubber piston, bromobutyl rubber piston, etc., depending on its material, use, and standard specifications.