Syringes are available at pharmacies, just look at them.
Syringes are a common medical tool. As early as the 15th century, the Italian Catinel proposed the principle of the syringe. It is mainly used to extract or inject gas or liquid with a needle.
Syringes can also be used for medical devices, containers, such as some chromatography in which scientific instruments are injected through a rubber septum.
Scientists have developed a new way to inject drugs without needles, using a high-speed, high-pressure jet to inject drugs through the skin. The method could one day put an end to the days when today's injections hurt.
Scientists on May 26 unveiled the needleless injector. Much like the injection device in the movie "Star Trek," it can inject various doses of drugs at different depths of the skin according to a pre-defined program. For patients who suffer from "needle phobia", this innovative injector could be very popular in the future, as it does not cause pain to the patient. Often, such patients don't even get vaccinated because of their fear of needles.
Syringes can also be used for medical devices, containers, and scientific instruments such as those used in some chromatography methods to inject through a rubber septum. Injecting gas into a blood vessel will cause an air embolism. The way to remove air from a syringe to avoid an embolism is to invert the syringe, tap it gently, and squeeze out a little liquid before injecting it into the bloodstream.
In settings where precision is not the primary concern for germs, such as in quantitative chemical analysis, glass syringes are still used because of their small margin of error and smooth pushrod movement.
Syringes can also be used to inject some juices into meat when cooking to improve flavor and texture, or into pastries when baking. Syringes can also be used to fill cartridges with ink.