Pressor field
A pressor field was a type of force field that staunched the flow of blood. 

In 2371, while operating on Bareil Antos, Doctor Julian Bashir
ordered a nurse to put a pressor field on one of his arteries. As his arterial disruption had reached a critical level, the field was insufficient to stop his hemorrhaging. Upon hearing that, Bashir ordered the nurse to clamp his artery instead. ()

Medical equipment
Energy technology