DEVICE FOR NEEDLE-FREE INJECTION OF A MEDIUM INTO THE TISSUE OF A HUMAN OR AN ANIMAL, DEVICE FOR NEEDLE FREE PRODUCTION OF AN INJECTION CHANNEL AND METHOD FOR THE NEEDLE FREE INJECTION OF A MEDIUM IN THE TISSUE

摘要

An injection channel is produced in human or animal tissue by means of a pre-injection device (1) for incorporating a medium which is to be injected. Said pre-injection device (1) comprises a chamber (4) which is used to receive a pre-injection medium, a nozzle which is provided for attachment to the skin (2) and a pressure generating device (14`) which acts on the chamber (4) in order to generate a high-pressure jet from the pre-injection medium exiting from the nozzle (2). Said type of needle-free pre-injection device (1) is serially connected to a main injection device (17).