Device and method for irreversible closure of fluid communication in a container system

摘要

A biological fluid collection system including a collecting device, a collecting container (1), a first channel (4) connecting the two, a sampling bag (6), a second channel (7) connecting the sampling bag and the first tube and at least one substantially irreversible closure device (10) in an open position on at least the first or second channel. The biological fluid may be blood. A method of collecting biological fluid such as blood using the system so that fluid in the sampling bag is substantially irreversibly prevented from entering the collecting container.