DEVICE FOR MEASURING THE SIZE OF AN INTRACARDIAC OPENING
First Claim
1. Device (1) for measuring the size of an intracardiac opening (2), comprising a hollow body (3) that has an elastic wall (5) and is insertable into the opening (2) and can expand perpendicular to an insertion direction and having at least two transparent markings (19, 20) arranged at a predetermined distance to each other and the distance can be compared with a molding of the hollow body (3) caused by an edge (17) of the opening (2) to be measured, the hollow body (3) is permeable to liquid and is constructed as a metal cage, the hollow body (3) is discontinuous in a middle region between end sides (7, 8) thereof and the discontinuity is spanned by individual bars (4) that are each formed by at least two twisted wires (23).
0 Assignments
0 Petitions
Accused Products
Abstract
A device (1) for measuring the diameter of an intracardiac opening (2), having a hollow body (3) made from a metal-wire mesh is provided that has twisted individual bars that form the jacket of the discontinuous wall (5) of the hollow body (3) and form longitudinal stabilization between two elastically deformable metal-wire meshes (6) forming the end sides of the hollow body (3) and are deformable in a position of use by an edge (17) of the opening (2) in a contact region into the interior of the hollow body (3). Thus, with the device (1), the size of the opening (2) can be determined in that, in an X-ray or ultrasound image, the deformation of the individual bars (4) is comparable through the opening (2) with markings (19, 20) arranged on the hollow body (3) and/or on the device (1) adjacent to the hollow body (3).
-
Citations
15 Claims
- 1. Device (1) for measuring the size of an intracardiac opening (2), comprising a hollow body (3) that has an elastic wall (5) and is insertable into the opening (2) and can expand perpendicular to an insertion direction and having at least two transparent markings (19, 20) arranged at a predetermined distance to each other and the distance can be compared with a molding of the hollow body (3) caused by an edge (17) of the opening (2) to be measured, the hollow body (3) is permeable to liquid and is constructed as a metal cage, the hollow body (3) is discontinuous in a middle region between end sides (7, 8) thereof and the discontinuity is spanned by individual bars (4) that are each formed by at least two twisted wires (23).
Specification