US Patent 10898325 Medical implant locking mechanism

A medical device system may include a replacement heart valve implant including an expandable anchor member reversibly actuatable between a delivery configuration and a deployed configuration, wherein the replacement heart valve implant includes at least one locking mechanism configured to lock the expandable anchor member in the deployed configuration, and at least one actuator element configured to releasably engage the at least one locking mechanism and actuate the expandable anchor member between the delivery configuration and the deployed configuration. The at least one actuator element may include external threads on a distal portion of each actuator element and a ramp disposed proximal of the external threads.