Endolumenal medical devices for implantation within a body vessel are provided. The medical devices may comprise a light-transmitting area having an adhesive-activating effective transmittance at a wavelength suitable for activating a light-activated adhesive. The light-activated adhesive is preferably positioned on the medical device and may be activated by illumination inside a body vessel with light of a suitable wavelength, including ultraviolet, visible or infrared radiation, to secure the medical device within a body vessel. The light may be provided by a light-emitting catheter within the body vessel, and the medical device may be configured as a radially-expandable valve comprising one or more valve leaflets.