NEEDLELESS MEDICAL DEVICE

摘要

A needleless syringe 1 comprises a hollow body 2 open at a distal end to define an outlet 4. A first compartment 6 in the body 2 contains a capsule 8 in which is stored fluid eg. helium under pressure and a second compartment 10 located between the first compartment 6 and the outlet 4 contains a therapeutic agent. The capsu le 8 faces away from the outlet 4 such that the flow of fluid, when the capsule 8 is ruptured, will initially be in a direction away from the outlet and latterly through a channel 27 between the capsule 8 and the inside surface of the hollow body i n a direction towards the second compartment 10 and the outlet 4.