Implant delivery apparatus

An implant delivery device, comprising:

• a casing;
• and
• an inner tube driving member, an outer tube driving member, an inner tube, an intermediate tube, an outer tube and an air-evacuation locking assembly, each at least partially accommodated in the casing;
• the inner tube, the intermediate tube and the outer tube are sequentially nested from inside to outside, the inner tube and the intermediate tube form a first space therebetween, the intermediate tube and the outer tube form a second space therebetween, and the inner tube and the outer tube form a third space therebetween, wherein:
• the inner tube driving member has a proximal end that is sealingly fixed to a proximal end of the inner tube, the outer tube driving member sealingly fixed to a proximal end of the outer tube, the intermediate tube having a proximal end that is sealingly fixed to the inner tube driving member, the intermediate tube extending through, and sealingly connected to, the outer tube driving member, the air-evacuation locking assembly detachably coupled to the inner tube driving member,
• the inner tube driving member is provided with a first air-evacuation channel, the air-evacuation locking assembly provided with a second air-evacuation channel, the second air-evacuation channel protruding out of the casing at a first end and brought, at a second end, into communication with the second and third spaces via the first air-evacuation channel and the first space when the air-evacuation locking assembly is coupled to the inner tube driving member, the inner tube driving member axially fixable relative to the casing through the air-evacuation locking assembly and, when the air-evacuation locking assembly is disconnected from the inner tube driving member, the inner tube driving member is axially slidable along the casing.