Patent ID: 11964135
Assignee: SCHOTT PHARMA AG & CO. KGAA
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 19:
20. A receptacle for pharmaceutical packaging, comprising:
an elongate barrel section having a direction of elongate extension and an axis in the direction of elongate extension, an axial position p being determined along the axis, the elongate barrel section extending from an axial position pA to an axial position pB;
a first end closer to the axial position pA than to the axial position pB;
a second end closer to the axial position pB than to the axial position pA;
a first aperture at the first end that has a first aperture diameter;
a second aperture at the second end that has a second aperture diameter, the first aperture diameter is greater than the second aperture diameter;
a plurality of side walls extending over the elongate barrel section, the side walls each having an inner surface bordering an interior that defines a volume;
a layer of lubricant placed on at least a part of the inner surface; and
a charge present in the interior and sealing a cross section of the interior between the inner surfaces of the side walls, the charge being displaceable within the interior between the axial position pB and the axial position pA and removeable from the interior by pulling the charge out of the interior through the first aperture, a variable dynamic friction being defined between the charge and the side walls as the charge is displaced between the axial position pB and the axial position pA, the dynamic friction increasing as the charge is displaced in a first region of the interior in a direction from the axial position pB toward the axial position pA and decreasing as the charge is displaced in a second region of the interior in the direction from the axial position pB toward the axial position pA.