Multistrand coil for interventional therapy

An embolic coil for placement within an interior aqueous fluid environment of an aneurysm in a person's vasculature for accelerating embolization of the aneurysm, comprising:

• a microcoil having a distal end and a proximal end, including a plurality of helical coils defining an interior space along a length of the microcoil, said microcoil being formed of a first metallic material having a first reduction potential;
• and
• an elongated wire having a distal end and a proximal end, said elongated wire being electrically connected to said microcoil at said proximal end of said microcoil, and said elongated wire being formed of a second metallic material having a second reduction potential different from the first reduction potential of the first metallic material, whereby said first and second metallic materials create a galvanic cell when the embolic coil is placed in the aqueous fluid environment of the aneurysm;
• a rounded tip secured to the distal end of the microcoil, wherein said rounded tip is also secured to the distal end of the elongated wire;
• and
• a ring secured to said microcoil and said elongated wire at the proximal end of the microcoil.