Abstract: A leadless biostimulator including an attachment feature to facilitate precise manipulation during delivery or retrieval is described. The attachment feature can be monolithically formed from a rigid material, and includes a base, a button, and a stem interconnecting the base to the button. The stem is a single post having a transverse profile extending around a central axis. The transverse profile can be annular and can surround the central axis. The leadless biostimulator includes a battery assembly having a cell can that includes an end boss. A tether recess in the end boss is axially aligned with a face port in the button to receive tethers of a delivery or retrieval system through an inner lumen of the stem. The attachment feature can be mounted on and welded to the cell can at a thickened transition region around the end boss. Other embodiments are also described and claimed.

Abstract: A pulsation damper for hydraulic circuits has a housing including a bottom, a casing, and a cover, a damper chamber which is sealed from outside and provided with supply and discharge means for a pressure medium, the housing being composed of two parts so that the bottom and the cover are connected with one another to form a single central element, while the casing peripherally surrounds the central element, the central element, and means forming force-free connecting points between the central element and the cover.