US 12,496,069 B2
Atrial appendage occluder for closing the left atrial appendage
Robert Moszner, Bad Klosterlausnitz (DE)
Assigned to CORMOS MEDICAL GMBH, Jena (DE)
Appl. No. 17/787,577
Filed by CORMOS MEDICAL GMBH, Jena (DE)
PCT Filed Dec. 29, 2020, PCT No. PCT/EP2020/087953
§ 371(c)(1), (2) Date Jun. 20, 2022,
PCT Pub. No. WO2021/136764, PCT Pub. Date Jul. 8, 2021.
Claims priority of application No. 102019009091.8 (DE), filed on Dec. 31, 2019; and application No. 102020003145.5 (DE), filed on May 18, 2020.
Prior Publication US 2022/0409211 A1, Dec. 29, 2022
Int. Cl. A61B 17/12 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/12122 (2013.01) [A61B 17/12031 (2013.01); A61B 17/12172 (2013.01); A61B 2017/00004 (2013.01); A61B 2017/00526 (2013.01); A61B 2017/00871 (2013.01); A61B 2017/12095 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A hybrid occluder (1) for closing the left atrial appendage (24),
wherein the hybrid occluder includes at least one atrial appendage occluder having a proximal disk-shaped cover or without the proximal disk-shaped cover,
wherein the occluder (1) in its basic shape is composed of a solid compound of a rotationally symmetrical envelope (9) being formed as a solid unitary piece, processed by laser, having self-expanding properties and means for the secure and gentle anchoring in the retention area of the atrial appendage (26),
wherein the means for secure and gentle anchoring are axially and radially oriented small hooks, situated in the retention area of the occluder,
wherein the small hooks will only be effective when the occluder is released within the atrial appendage and a corresponding compression force acts upon the outer envelope of the occluder via the bearing stress, which compresses the occluder by 3% to 10%,
wherein the occluder is equipped with or without the proximal disk-shaped cover (14), wherein furthermore for sealing the blood flow at least one tissue layer of patches (21) being respectively incorporated at the proximal end (10) so as to enable the interventional atrium occlusion of the left atrial appendage (24) based on a venous transseptal access,
wherein the hooks (19) are in forced radial orientation which is permanently secured by a following heat treatment,
and wherein the hooks (19) of the occluder are bended towards the proximal retention area (11) and/or the proximal disk-shaped cover (14) in a radius of curvature defined by a radius of a shape part (39).