English to German Medical Medical: Instruments Patent for vacuum wound drainage system

There is a drawing here: http://www.mwtca.org/patent-information/first-patents.html

Sheet 1 of 4 on the left side of the lid is the leg 274
Sheet 4 of 4 shows that leg in the drain reservoir 13 (see sheet 1 of 4)
on the left side is the ramp 298, elsewhere in the text also called a "detent"

I had considered "Arretierung" for "ramp" and "detent", since they refer to the same thing.

However, in the preferred embodiment shown in FIGS.2, 6 and 7, the actuator 117 is depressed by a *ramp 298* on the side of the leg 274 during insertion of the drain reservoir 13 in the base unit 12 and then simply bears frictionally on the leg 274, and a strap 299 fixedly depending from the right side of the cover 223 (FIGS.

Alternatively, the thus “vacuum charged” drain reservoir can be forced upward with respect to the base unit 12 to unseat the switch actuator 117 from the *detent 298* and thus permit the drain reservoir 13 to be lifted out of contact with the base unit 12.