Atrial appendage occluder for closing the left atrial appendage

Abstract

The invention relates to a novel multivalent atrial appendage occluder of hybrid design based on two different atrial appendage occluders, one having a proximal disk-shaped cover and a second version without a proximal cover. The two occluder variants each provide relevant application solutions by themselves. The invention further relates to multiple specified, universal devices composed of predominantly rotationally symmetrical individual parts for producing these different LAA occluders (LAA=Left Atrial Appendage) which are graded in different sizes, for the interventional, catheter-based closure of the left atrial appendage. Axially and radially oriented hooks support the secure and gentle anchoring of the occludersin the retaining area of the atrial appendage. As a result, the use of substantially smaller access ports in the interventional application is possible. The two atrial appendage occluder variants, with and without proximal cover, can be inserted using the same controllable access port and can be implanted in various sizes individually or in combination with one another and likewise as a hybrid variant of two occluders, one without a proximal cover () and one subsequently with a proximal cover () in one and the same atrial appendage () as shown in FIG. The two atrial appendage occluder variants can each be released during the implantation phase in three stages until they are fully unfolded.