Bioresorbable medical implants are designed to have different resorption
rates over time or over the topography of the implants. The resorption of
the medical implants are controlled by including layers having differing
resorption rates. The layers resorb sequentially over time through
sequential exposure to body fluids. A resorption-controllable medical
implant includes a series of two or more layers. The first layer includes
a first bioresorbable material. The second layer includes a second
bioresorbable material and resorbable particles of a first kind dispersed
within the second bioresorbable material. Additional layers of
bioresorbable material alone or including resorbable particles may be
added to slow or speed resorption and achieve desired control over the
resorption of the implant. Resorbable particles can be added in differing
amounts or kinds in various segments of the implant to provide
topographically differing resorption rates.