Implantable medical devices that contain at least one region that is selectively degradable by electrolytic corrosion are provided. The electrolytic corrosion of the medical device is initiated by the formation of an electrolytic cell that can be activated wirelessly at a designated point in time. The medical device incorporates at least one section or region that is designed to be predisposed to structural failure. The medical device contains a cathode region, a sacrificial anode region, which will undergo degradation, and an antenna region. Electrolytic degradation of a sacrificial anode region may cause a de-anchoring of the medical device or a reconfiguration of the medical device from a first configuration to a second configuration. Alternatively, electrolytic degradation may precipitate the absorption of the medical device. In another embodiment, electrolytic protection may be employed to preserve an implanted device until such a time that its corrosion and subsequent absorption is desired.

A flow diverting apparatus includes a stent frame body, and a stent frame extension.

The stent frame body includes an inlet opening, an outlet opening, and a cavity extending from the inlet opening to the outlet opening. The stent frame body is configured to pass a flow of fluid from the inlet opening to the outlet opening through the cavity. The stent frame body includes a first portion having the inlet opening, and a second portion having the outlet opening. The second portion is tapered from one end of the second portion to a first location of the second portion, thereby forming an indented portion having a plurality of pores. The stent frame extension is configured to be disposed between at least a portion of the indented portion and a vessel wall, thereby preventing a migration of vessel wall cells onto the indented portion.