Device for extraction of dry upstream body fluid in a sample cartridge and methods

The invention relates to a device (100) for the extraction of dry upstream body fluid in a sample containing a lab on chip system (10) having a receiving portion (20) which is for receiving a sample (30) with at least one body fluid in dry upstream shape is provided in a carrier material (40), and having a discharge region (50) for delivering the extracted body fluid from the sample (30), wherein by extraction of the dry upstream body fluid from the sample (30) in the receiving region (20) ,