An indwelling needle assembly usable in combination with an infusion system for infusion into a patient's body is disclosed. The indwelling needle assembly is comprised of a needle having a needlepoint insertable into the patient's body; a sleeve slidably fitted on the needle; a catheter including a...http://www.google.co.uk/patents/US8075529?utm_source=gb-gplus-sharePatent US8075529 - Indwelling needle assembly
