Delivery and detachment systems and methods for vascular implants

An implant delivery device, comprising:

• a delivery pusher including a lumen;
• an implant detachably connected to the delivery pusher by a tether having a distal end connected to a proximal end of the implant;
• an electrical heating element arranged coaxially around at least a portion of the tether, the electrical heating element comprising a first coil winding wound in a first direction and a second coil winding wound in a second direction, the second direction being opposite with respect to the first direction;
• a fiber optic cable extending through at least a portion of the lumen of the delivery pusher;
• and
• a laser light source in communication with the fiber optic cable;
• and,
• wherein, in an energized configuration, the fiber optic cable transmits light energy from the laser light source to the electrical heating element such that the electrical heating element heats and severs the tether.

An implant delivery device, comprising:

• a delivery means including a lumen;
• an implant means detachably connected to the delivery means by a tether means having a distal end connected to a proximal end of the implant means;
• an electrical heating means comprising a coil having a double winding layer including the coil doubled back or reversed upon itself;
• a fiber optic means extending through at least a portion of the lumen of the delivery means;
• and
• a light source means in communication with the fiber optic means;
• and,
• wherein, in an energized configuration, the fiber optic means transmits light energy from the light source means to the electrical heating means such that the electrical heating means and severs the tether means.