A single step body insertion device contains a Veress needle 10 which penetrates the skin surface and relevant tissue layers to reach fluid and/or gases that need to be removed from the body. The device comprises a cannula shaft 2 with a tapered distal tip 3 and a proximal hub 4 with a side port 7 housing a one way low pressure cracking valve 8. The cannula shaft is of a polymeric material which is flexible and kink resistant. The device is used for the management of conditions such as pneumothoraxes and pleural effusions as well as other conditions that require release of fluid and/or gas from the body.
