This invention relates to the field of
aneurysm coil
embolization technology and discloses a controllable mechanical release structure for the coil, comprising a main body with a compression spring fixedly connected to its outer surface. When the coil needs to be released, simply pull the front end of the main body. The main body will then slide back to its original position under the elastic release force of the compression spring, causing the two clamping blocks to move away from each other. The two clamping blocks will then open, releasing the coil. This eliminates the need to rotate to find the
release point during release, prevents displacement of the microcatheter due to the release operation, and is simple and reliable to operate. Release can be completed simply by gently engaging the outer shell and the main body, improving the release speed and ease of operation.