Medical tubes and methods of manufacture

A breathing tube comprising:

• a first elongate member comprising a hollow body component,
• wherein the weight per length of the tube within at least a portion of the 300 mm nearest an end of the tube is less than about 0.08 g/mm.

A respiratory conduit comprising:

• a lumen extending along a longitudinal axis and a wall surrounding the lumen, the lumen defining a gas-flow path when in use;
• and
• an overmolded printed circuit board assembly secured to the wall, the printed circuit board assembly comprising a printed circuit board with a sensor portion disposed in the lumen of the conduit and projecting along the longitudinal axis, and a temperature sensor on a surface of the sensor portion.

A respiratory conduit comprising:

• a lumen extending along a longitudinal axis and walls surrounding the lumen, the lumen defining a gas-flow path when in use;
• and
• a component secured to the walls and extending across the lumen along a diameter or chord line, such that the component generally bisects at least part of the flow path, the component comprising a sensor portion disposed in the lumen and projecting along the longitudinal axis, and a temperature sensor on a surface of the sensor portion.