Interlocking loop coupling/decoupling system for deploying vascular implant devices

An assembly for deploying a vascular implant device, comprising:

• an intravascular deployment tool having a distal end and a proximal portion;
• a release wire extending through the intravascular deployment tool and having a distal end configured to releasably couple a vascular implant device to the distal end of the intravascular deployment tool, the release wire having an exposed proximal portion extending from the proximal portion of the intravascular deployment tool;
• and
• a release wire retraction device, comprising:
• a housing having a distal opening configured for receiving the proximal portion of the deployment tool from which the proximal portion of the release wire is exposed;
• and
• a guide assembly within the housing and movable between a distal position and a proximal position, the guide assembly including a first gripping element in a fixed position in the guide assembly and a second gripping element pivotably mounted in the guide assembly, wherein movement of the guide assembly between the distal position and the proximal position moves the first gripping element and the second gripping element between a first relative position configured for disengagement from the exposed portion of the release wire when the guide assembly is in the distal position and in the proximal position, and a second relative position configured for engagement with the exposed portion of the release wire when the guide assembly is in an intermediate position between the distal position and the proximal position, whereby movement of the guide assembly from the intermediate position to the proximal position is operable to move the release wire proximally within the housing with the first and second gripping elements in the second relative position.