Torque limiting mechanism between a medical device and its implantation accessory

A delivery system for a leadless active implantable medical device, comprising:

• a delivery catheter;
• a torque shaft disposed within the delivery catheter;
• a docking cap having a distal end for engaging an attachment mechanism of the leadless active implantable medical device, a cavity shaped to receive the leadless active implantable medical device including the attachment mechanism, and a projection extending radially outwards from a proximal end of the docking cap;
• and
• a torque limiting component coupled to a distal end of the torque shaft and the proximal end of the docking cap,
• wherein the torque limiting component is configured to secure the docking cap in translation and rotation until a predetermined torque limit is reached and to interact with the projection of the docking cap when the predetermined torque limit is exceeded;
• wherein when the predetermined torque limit is exceeded, the docking cap remains coupled to the torque limiting component.