Medical dilatation balloons comprise a polymer that has the attribute of memory, and/or is crosslinked to impart memory. Such balloons exhibit a reduced tendency to overinflate at high inflation pressures. Furthermore, such balloons when shrunk radially by the application of heat while restraining axial...http://www.google.com.au/patents/US7749585?utm_source=gb-gplus-sharePatent US7749585 - Reduced profile medical balloon element
