The principle of sealing the syringe barrel

The whole glass syringe barrel is divided into two parts: the first half is the liquid, the middle is the piston, the latter half is sealed high pressure chamber (provide injection power to push the piston injection before the liquid).

   The needle head of the syringe is sewn on a small rubber stopper and has a blocking effect before launch. The tail of the syringe is provided with a tail that acts as a stabilizer, and after the launch of the needle, the needle is pierced by contact with the target animal Rubber stopper, animal skin to reach the muscle layer (needle plug is released), and then the high pressure air behind the barrel to push the piston to the liquid into the animal muscle, play a therapeutic or anesthetic effect.

The syringe consists of a syringe with a small hole at the front and a matching piston stem for the purpose of injecting a small amount of liquid or its injection into areas that are not accessible to other methods or from those places. When the mandrel is pulled out, Or the gas is drawn from the small hole in the front end of the syringe and the liquid or gas is extruded when the mandrel is pushed in.

   Syringes can also be used for medical equipment, containers, such as some of the scientific instruments in the chromatography through the rubber diaphragm injection. The injection of gas into the blood vessels will cause air embolism. Remove the air from the syringe to avoid embolization by inverting the syringe, tapping lightly, and then squeezing a little liquid before injecting it into the bloodstream.

   In the case of some precision, rather than the primary consideration of the pathogen, such as quantitative chemical analysis, due to the smaller error of the glass syringe, the push rod moves smoothly so that it is still in use.

   In addition, the plunger in the syringe is allowed to move along the syringe within a certain range, and the movement of the plunger caused by the pressure change during the storage and sale process may potentially affect the integrity of the seal when in a low pressure environment. Therefore, it is necessary to assess the integrity of the plunger seal under these special conditions.

   Taizhou thousands of Johnson Plastic Co., Ltd. is a commitment to the medical aspects of research and development, production and sales as one of the modern enterprise! The company mainly engaged in: pet chip syringes, medical silicone O-ring, medical medical plastic products!