Modular occlusion in front of the direction of the closure of the left heart tube (left atrial appendage, laa) and its production

摘要

Modular intravascular closure devices (1) for the treatment of defects in the heart of a patient, in particular for closing of the left heart ear (5), wherein the occlusion device (1) is composed of at least two modular units (21), wherein the proximal modular unit (cover) (2) from the left atrium (4) through the heart ear (6) and closes at least one distal modular unit (base body) (3) in the holding region of the atrial appendage (5) and positioned by means of corresponding hook (26) in the heart earrings (5) is firmly anchored. Cover (2) and the base body (3) are predominantly produced by means of a suitable laser processing method. Materials employed are metal or metal alloys such as, for example, nitinol or of not - resorbable synthetic materials selected from the group consisting of the polyesters, polyamides, polyolefins, polyurethanes and poly halogen olefins or bioresorbable polymers as polyesters, such as poly (lactic acid) pla, poly (glycolic acid) pga and other polyesters, polyanhydrides and polyamic having cleavable bonds, such as amide -, esters, - or acetal - bonds and both the lasered casing (33) as well as the patches (25) a degradation duration between (5) and (50) weeks have.