Delivery device

A delivery device for conveying an implant, comprising:

• a holder;
• a guide rod;
• a sliding handle;
• and
• a position locking device comprising a tooth block and a first elastic component, wherein one end of the guide rod is connected to the holder, and a second end of the guide rod penetrates through the sliding handle, an outer surface of the guide rod is provided with a plurality of first engagement structures axially spaced apart from each other along the guide rod, the position locking device is provided in the sliding handle, the tooth block is sleeved on the guide rod and provided with a second engagement structure, the first elastic component is provided inside the sliding handle, one end of the first elastic component is connected to the tooth block and a second end of the first elastic component is connected to an inner wall of the sliding handle at a bottom of the inner wall, the first elastic component and the tooth block cooperate to allow the plurality of first engagement structures and the second engagement structure to engage with each other when the first elastic component is one of not compressed or partially compressed, the sliding handle cannot move axially along the guide rod, allowing the implant to be in a release-locked state, and the implant is in a releasable state when the first elastic component is compressed until the plurality of first engagement structures and the second engagement structure are separated.