Medical device release system

A medical device system, comprising:

• an elongate shaft having a lumen extending from a proximal end of the elongate shaft to a distal end of the elongate shaft;
• a medical device disposed proximate the distal end of the elongate shaft;
• a release wire disposed within the lumen of the elongate shaft, wherein the release wire releasably secures the medical device to the distal end of the elongate shaft;
• a securement member fixedly attached to the proximal end of the elongate shaft and to a proximal end of the release wire;
• and
• a microcatheter configured to deliver the medical device to a treatment site, the elongate shaft and the medical device being slidably disposed within a lumen of the microcatheter;
• wherein a proximal portion of the securement member is configured to disengage from a distal portion of the securement member;
• wherein the proximal portion of the securement member is disengaged from the distal portion of the securement member by bending or pulling the proximal portion of the securement member relative to the distal portion of the securement member,
• wherein the securement member is sized to be received within the proximal end of the elongate shaft and is free from an external handle that moves the proximal portion of the securement member relative to the distal portion of the securement member.