device for measuring the size of a intrakardialen opening

摘要

In the case of an apparatus (1) for measuring the diameter of an intracardial opening (2) is a made of a metallic wire net of existing hollow body (3) is provided which, twisted individual rods, the jacket of the perforated wall (5) of the hollow body (3) and which form a longitudinal stabilisation between two the end face of the hollow body (3) which is resiliently deformable metallldrahtgeflechten (6) and, in the operating position, form by the edge (17) of the opening (2) in a contact areas in the interior of the hollow body (3) are deformable. With the device (1) is thus the size of the opening (2) can be determined, in an x-ray - or ultrasound image the deformation of the individual rods 4 through the opening (2) with on the hollow body (3) and / or on the device (1) the hollow body (3) adjacently arranged marks (19, 20) is comparable.