Fluid storage apparatus for medical use is described that includes a length of tubing having a first end and a second end. A first sealable connector portion is provided at the first end and a second sealable connector portion is provided at the second end. The volume of fluid that can be stored within the apparatus is known and an infusate or therapeutic agent is contained within the apparatus. In this manner, a known volume of therapeutic agent can be infused to a patient. The use in neurosurgical applications is described.
