Medical tubes for respiratory systems

A medical tube assembly comprising:

• a medical tube comprising:
• one or more wires provided within a wire-containing elongate member, the wire-containing elongate member having a tail at an end of the wire-containing elongate member, wherein the tail comprises an exposed portion and wherein the one or more wires are exposed in the exposed portion;
• and
• a connector comprising:
• a body;
• a printed circuit board comprising attachment features, wherein the exposed portion of the one or more wires is configured to be soldered to the attachment features, and alignment features,
• wherein at least one of the attachment features comprises an attachment notch, the attachment notch comprising a cutout on a peripheral edge of the printed circuit board, and the attachment notch being at least partially surrounded by a solder pad.