The present invention relates to medical lines for the percutaneous provision of fluids into human and animal bodies. In particular, the present invention relates to a device (20) and system (10) for orienting a medical line with respect to a patient. The medical treatment of patients commonly involves the use of percutaneously inserted lines to direct fluids directly into the bloodstream, a specific organ or an internal location within the patient, or to monitor vital functions of the patient. For instance, short, peripherally-inserted, intra-arteriovenous catheters are commonly used to provide medication and direct fluids directly into the bloodstream of the patient, otherwise commonly referred to as intravenous (IV) catheters. It is common in the treatment of patients to utilize the catheter in a variety of ways. For example, a directed fluid catheter typically drains from a container positioned above the patient to feed under gravity or is delivered via an infusion pump. The fluid flows through tubing and thence into an indwelling catheter. A convenient angle for insertion of a cannula may realise an awkward angle for the medical line attached to the cannula. The present invention provides a device and system to overcome this problem.