A medical device for the treatment of a sinus opening includes a handle, a grooming sheath, a rail, a guide wire, a balloon catheter and a balloon catheter movement mechanism. A method for treating a sinus opening includes inserting a medical device for the treatment of a sinus opening partially into a patient's anatomy, positioning a guide wire operatively extending from a rail of the medical device into a sinus opening of the patient, advancing a balloon catheter from an annular lumen of the medical device and along both the rail of the medical device and the guide wire with a balloon catheter movement mechanism, and inflating the balloon catheter.
