Abstract: A method for using stent which is a hollow, cylindrical structure made of a synthetic substance which becomes plastic and malleable in a temperature range from 45.degree. to 75.degree. Celsius. The stent is brought to the desired site, for example a stenosed section of an artery, by means of a heatable balloon catheter. The stent is heated at the site to be treated and whilst in the plastic state is expanded through dilatation of a balloon. After being cooled to body temperature the expanded stent retains the form achieved. The body fluids bring about complete biodegradation of the implanted stent.
Abstract: The probe is provided at its distal end with an olive-shaped tip which is solidly joined to a shaft. The shaft is provided with a wire made of stainless steel as well as a spring. The maximum diameter of the tip is preferably approx. 1 mm. The guide catheter is suitable especially for recanalization of coronary and completely obstructed occlusions. The probe is preferably applied together with a baloon catheter itself known.
Type:
Grant
Filed:
May 17, 1990
Date of Patent:
July 7, 1992
Assignee:
Schneider (Europe) A.G.
Inventors:
Werner Niederhauser, Bernhard Meier, Urs Bannwart