Occluder, occluding system and conveying device

A conveying device for conveying an implantable instrument, comprising:

• an adjusting member, having a distal end and a proximal end, the distal end of the adjusting member having a pre-bending portion in a natural state;
• an operating handle, the proximal end of the adjusting member being connected to the operating handle;
• a pushing member,
• wherein the pushing member is a hollow tube member comprising a distal end, a proximal end, and a lumen extending from the distal end to the proximal end of the pushing member, and the adjusting member is slidably accommodated within the lumen of the pushing member;
• a pushing control member,
• wherein the pushing control member is arranged on the operating handle, the proximal end of the pushing member is connected to the pushing control member, the pushing control member is configured to control the displacement of the pushing member;
• and
• an adjusting control member, arranged on the operating handle and connected to the proximal end of the adjusting member for controlling the displacement of the adjusting member such that an inner side surface of the pre-bending portion of the adjusting member abuts against a distal end surface of the implantable instrument to achieve shaping of the implantable instrument;
• wherein the conveying device further comprises an interlocking mechanism that is arranged on the operating handle, and
• wherein the interlocking mechanism comprises at least two magnetic components that are arranged on the adjusting control member and the pushing control member, respectively, configured to enable the detachable locking of the adjusting member and the pushing member.