NEGATIVE PRESSURE WOUND TREATMENT ASSEMBLY

摘要

Negative pressure wound treatment assembly (70) comprising: - a covering layer (71), - a vacuum system (1) comprising: a chamber (2) having a tightly closed space (7) with a reduced pressure, said chamber (2) comprising an end (5) closed by a perforable cap (6), a connecting device (10) adapted to be attached to the covering layer (71) and to the chamber (2) to form a communication passage between the covering layer (71) and the space (7) of the chamber (2), the connecting device (10) having at least one needle portion (41, 42) adapted to perforate the cap (6) of the chamber (2), the connecting device (10) comprising at least one valve member (44, 68, 98), wherein the valve member comprises a cover (44) mounted on the needle portion (41, 42), said cover (44) covering a tipped end of the needle portion (41) in a closing position and being adapted to be resiliently deformed to an opening position.