Abstract: A medical device may include an elongate delivery sheath and a valve replacement implant disposed within a lumen of the delivery sheath, the implant including an anchor member reversibly actuatable between a delivery configuration and a deployed configuration. The implant may include at least one locking element configured to lock the anchor member in the deployed configuration, and at least one actuator element configured to engage the at least one locking element and actuate the anchor member between the delivery configuration and the deployed configuration. The at least one actuator element may include an unlocking member configured to compress a first locking portion of the at least one locking element to unlock the anchor member from the deployed configuration.

Abstract: A one-piece plastic shelf support has a back portion with a shelf-receiving flange projecting from one side thereof and a stem projecting from the other side thereof. The back portion also includes adjacent sections that form an obtuse angle with a shoulder at the vertex of the angle and presented toward the flange. The aforesaid adjacent sections yield resiliently and flatten out as the shelf edge portion is snapped past the shoulder to seat on the flange, whereby the shelf edge portion is confined between the flange and the shoulder.