Eine Einmalstechhilfe is a single use lancing device for a capillary sample. It triggers once, retracts the blade automatically and locks, and the whole device then goes into the sharps container as one piece.
Eine Einmalstechhilfe is the single use lancing device used for a kapillare Blutentnahme. It arrives sterile and sealed, it is armed by removing a cap or twisting off a tab, it can be triggered exactly once, and after that it is waste.
The depth is fixed by the model rather than set by the user, and that is part of the point. Choosing the right device for the site is a decision made when the device is ordered rather than at the finger.
The mechanism is what separates it from the object a person keeps at home:
There is no moment at which an exposed sharp is presented to the hand holding it, which is precisely why the used device can go straight into the Kanülenabwurfbehälter.
A reusable holder with a fresh lancet is not an acceptable substitute in a professional setting, and the reason is the holder rather than the lancet:
Devices of that kind are personal equipment for one named person. Using one across several people has been linked to transmission of bloodborne infection often enough that professional recommendations treat it as a fixed prohibition rather than a matter of care. The same reasoning applies to Hygiene bei der Blutentnahme more generally.
Disposal is a single movement and it happens at the workplace where the device was used. The whole device goes into the puncture resistant container as one piece, without disassembly, without any attempt to remove the lancet and without a cap being put back on. It does not belong in the ordinary waste bin, even though the sharp is retracted, because the container is what proves the point to anyone auditing the room.
The same applies when the capillary sample is going onto a card as Trockenblut, since the device is finished as soon as the blood has appeared.
This glossary entry is general information about German pharmacy law and practice. It is not legal advice. For binding guidance on your own pharmacy, contact your Landesapothekerkammer.