What about the introduction of syringes?

A syringe is a common medical device. As early as the 15th century, the Italian Cartinel proposed the principle of the syringe. The main use of needles to extract or inject gas or liquid.

Syringes can also be used in medical devices, containers, and scientific instruments such as some in chromatography to inject through rubber septa. Injecting gas into a blood vessel will cause an air embolism. The way to remove air from the syringe to avoid embolism is to turn the syringe upside down, tap it lightly, and squeeze out a little bit of fluid before injecting into the bloodstream.

In some cases where accuracy is not the primary concern of germs, such as quantitative chemical analysis, glass syringes are still used due to the small error of the glass syringe and the smooth movement of the push rod.

You can also inject some of the juices into meat with a syringe to improve taste and texture while cooking, or into pastries when baking. Syringes can also fill ink cartridges with ink.