The tiny impeller is a section of the syringe’s original plunger, with its cross-shaped body acting as the impeller blades. [Penguin DIY] first experimented with the original plunger seal to ...
The basic idea involves blocking the end of a syringe, and then pull the plunger to create a vacuum in the tube. When released, the plunger will rush forward from the atmospheric pressure ...
But his creation of an all-glass syringe with plunger and fine-bore needle was to become as recognisable a medical device as the stethoscope. Getty Images Hippocrates used syringes made of animal ...