METHOD FOR REMOVING A MEDICAL DEVICE FROM A SPASMODIC CONSTRICTION IN A BODILY PASSAGEWAY

摘要

A method and apparatus for removing a medical device entrapped in a bodily passageway resulting from a spasmodic constriction of bodily tissue surrounding the device involves delivering to the site of the constriction an amount of an antispasmodic agent sufficient to relax the surrounding bodily tissue. The method may also be used for relaxing the tissue of a vessel wall to inhibit constriction of the vessel wall upon the introduction of a medical device into the vessel.