Locking guide catheter hubs

A delivery device for an implantable medical device, the delivery device comprising:

• an inner shaft configured to retain, at its distal end, a proximal end of the implantable medical device;
• an outer shaft slidably and coaxially disposed about the inner shaft;
• a sheath affixed to a distal end of the outer shaft, the sheath having a compartment configured to receive the implantable medical device such that the sheath selectively covers an anchor at a distal end of the implantable medical device based on sliding the sheath and the outer shaft relative to the inner shaft;
• and
• a locking hub affixed to a proximal end of the outer shaft, the locking hub including:
• a housing having an internal recess;
• a piston element disposed in the internal recess, the piston element being translatable within the internal recess along a longitudinal axis of the locking hub;
• an actuator operatively coupled to the piston element, the actuator having a portion thereof extending outside of the housing and accessible for grasping by a user, the actuator having first and second abutment surfaces and being movable relative to the housing between an unlocked condition and a locked condition;
• a movement restrictor having fixed surfaces defining limits of movement of the actuator between the unlocked condition and the locked condition, the first abutment surface of the actuator contacting one of the fixed surfaces in the locked condition and the second abutment surface of the actuator contacting another one of the fixed surfaces in the unlocked condition, at least one of the fixed surfaces being formed by an exterior surface of the housing;
• and
• a clamping gasket made of a compressible material and disposed in the internal recess, the clamping gasket having a lumen extending therethrough along the longitudinal axis, the lumen having a first diameter with the actuator in the unlocked condition and a second diameter with the actuator in the locked condition, the second diameter being less than the first diameter,
• wherein the outer shaft and the locking hub are slidable along the inner shaft to expose the implantable medical device by retracting the sheath when the actuator is in the unlocked condition, and the outer shaft and the locking hub are fixed to the inner shaft to prevent exposure of the anchor of the implantable medical device when the delivery device is advanced through vasculature of a patient with the actuator in the locked condition.