Symbol 3704 from ISO 7000 - Title/Meaning: Double sterile barrier system Function/description: To indicate that there are two sterile barrier systems.
Additional information: 
A solid line indicates sterile barrier system. - The packaging system for a sterile medical device is composed of one or more sterile barriers and potentially additional layer(s) of protective packaging without microbial barrier. The user needs to have an indication of which packaging layers make up the sterile barrier system to perform adequate aseptic presentation of the contents minimizing risk to the patient. Subclause 6.1.8 of ISO 11607-1: 2019 requires that a packaging system consisting of more than one layer that is to be opened at the point of use, shall have an indication of the layer that forms the sterile barrier. New regulations in Europe have established a new requirement for labelling of the sterile barrier system. Symbol was validated in multiple geographies (US, EU, Japan) per ISO 15223-2.
Own work using: iso.org/obp/graphics/grs/f851e07a-4e40-4cf8-ae1e-a987d6d305ac 200.png
Vectorization:  Mrmw