Medical infusion apparatus and instruments; drug infusion apparatus and instruments; anaesthetic infusion apparatus and instruments; medical infusion pumps; medical syringe pumps; tube sets, catheters, couplings, flow controllers, pressure transducers, occlusion detectors and fluid containers, all for use with medical infusion apparatus and instruments; patient access ports; patient infusion ports; infusion fluid warming apparatus and instruments; patient warming apparatus and instruments; respiration monitoring apparatus and instruments and sensors therefor; cardiac monitoring apparatus and instruments and sensors therefor; apnoea monitoring apparatus and instruments and sensors therefor; blood pressure monitoring apparatus and instruments and sensors therefor; temperature monitoring apparatus and instruments; temperature sensors; and parts and fittings for all the aforesaid goods