A connector device 10 for releasably connecting a bougie 18 or stylet to an endotracheal (intubation) tube (ETT) 12 has a body portion 14 having an opening 16 provided as a longitudinal bore or channel. The connector device can be adjusted to grip the bougie or stylet. The connector device can have passages 40, 41 and a port 42 for supply of gas into or from the ETT. The connector device can include clamping means 30, 32 to clasp the exterior of the ETT to internally grip the bougie or stylet within the ETT. The connector device can grip the bougie or stylet by insertion of the connector device into an open connection end of the ETT. The connector device can form part of the bougie or stylet or be attached thereto, such as by moulding or bonding or other attachment means.