Implantable anchor locking mechanism

A device for anchoring an implantable medical device inside a body, the device comprising:

• an anchor body that includes an exterior surface defining an open channel that extends along a first axis, the open channel being outwardly open through an entirety of the first axis of the anchor body and is configured to receive a portion of the implantable medical device;
• and
• a locking member coupled to the anchor body and configured to rotate between a first position and a second position with respect to a second axis different from the first axis, so that:
• in an unlocked configuration corresponding to the first position, the locking member cooperates with the anchor body to define an open path for the implantable medical device to move therethrough;
• and
• in a locked configuration corresponding to the second position, the locking member cooperates with the anchor body to restrict movement of the implantable medical device;
• wherein:
• the locking member includes a detent that provisionally locks the locking member in the second position by protruding into the open channel so that a sidewall of the detent is in physical contact with sidewalls of the open channel, thereby inhibiting further rotation of the locking member with respect to the anchor body beyond the second position;
• and
• the anchor body includes recesses for seating the detent when the locking member is rotated into the first position, the seated detent provisionally locking the locking member in the first position.

A device for anchoring an implantable medical device inside a body, the device comprising:

• an anchor body that includes an outer surface defining a first trough that extends along a first axis, the first trough being configured to receive a portion of the implantable medical device, wherein the first trough includes a cavity;
• and
• a locking member coupled to the anchor body and configured to rotate with respect to a second axis different from the first axis, so that the locking member is rotatable between a first position and a second position;
• wherein:
• the locking member includes a first member and a plurality of second members attached to the first member, the second members protruding outwardly from the first member and insert-able into the cavity;
• the first member is configured to provide a cover for at least a portion of the first trough when the locking member is rotated to the second position;
• the second members define a second trough that is aligned with the first trough when the second members are inserted into the cavity and the locking member is rotated to the first position, so as to form an open path for the implantable medical device to move through the first and second troughs;
• the second members have at least one corner configured to engage the implantable medical device when the locking member is rotated to the second position, so as to restrict a movement of the implantable medical device without damaging the implantable medical device, the corner having a radius between 0.002 inches and 0.010 inches;
• the anchor body includes a recess;
• the first member of the locking member includes a detent that protrudes outwardly in a same direction as the second members;
• when the locking member is rotated into the first position, the detent provisionally locks the locking member in the first position by protruding into the recess, so as to prevent inadvertent rotation of the locking member back into the second position;
• and
• when the locking member is rotated into the second position, a sidewall of the detent is in physical contact with a sidewall of the first trough, thereby inhibiting further rotation of the locking member with respect to the anchor body.

A method of anchoring an implantable medical device inside a patient, comprising:

• providing an anchor for the implantable medical device, the anchor including:
• an anchor body that includes an outer surface defining a first trough that extends along a first axis and having U-shaped cross-sectional profile oriented in a first direction, wherein the U-shaped cross-sectional profile of the first trough is defined by a first side wall, a second side wall parallel to the first side wall, and a floor joining the first side wall and the second side wall, of the outer surface;
• and
• a locking member coupled to the anchor body, the locking member including a first member and a plurality of second members attached to the first member, the second members defining a second trough, the locking member being rotatable with respect to a second axis different from the first axis;
• inserting, while the locking member is rotated to a first position, the implantable medical device through an open path formed collectively by the first trough and the second trough;
• rotating the locking member into a second position different from the first position, wherein the second members cooperate with the anchor body to engage with the implantable medical device while the locking member is rotated in the second position, so as to restrict a movement of the implantable medical device, wherein when the locking member is rotated into the second position, a detent of the first member protrudes into the first trough, thereby inhibiting further rotation of the locking member with respect to the anchor body;
• and
• attaching the anchor to tissue within a patent to thereby anchor the location of the implantable medical device.