Abstract: The invention relates to a radially expandable stent (1) comprising a plurality of flexibly interconnected meandering ring elements (2, 3) defining a stent (1) having a proximal and a distal end and a longitudinal axis, wherein said ring elements (2, 3) being arranged side by side along the longitudinal axis of the stent and adjoining ring elements (2, 3) being attached to each other through connection elements (4), wherein connection elements (4) are arranged between at least two adjoining ring elements (2, 3), said connection elements each having at least one expandable expansion element with predetermined breaking point (10), wherein the expansion being possible in the longitudinal and/or transverse direction and the predetermined breaking points (10) only disrupting after the expansion element has been overstretched beyond its maximum expansion point.

Abstract: The invention relates to a radially expandable stent (1) comprising a plurality of flexibly interconnected meandering ring elements (2, 3) defining a stent (1) having a proximal and a distal end and a longitudinal axis, wherein said ring elements (2, 3) being arranged side by side along the longitudinal axis of the stent and adjoining ring elements (2, 3) being attached to each other through connection elements (4), wherein connection elements (4) are arranged between at least two adjoining ring elements (2, 3), said connection elements each having at least one expandable expansion element with predetermined breaking point (10), wherein the expansion being possible in the longitudinal and/or transverse direction and the predetermined breaking points (10) only disrupting after the expansion element has been overstretched beyond its maximum expansion point.

Abstract: The invention relates to a valvulotome (1) guided by guidewire/catheter comprising a guidewire (2), a first inner tube (3) accommodating the guidewire (2), an expandable basket (5) with cutting elements (7), with said basket (5) being the distal end of a second tube (4) through which the first inner tube (3) extends, a catheter tube (8) through which the second inner tube (4) extends, said catheter tube being suited to accommodate and guide the expandable basket (5) in non-expanded state, a sleeve (6) that forms the distal end of the first tube (3) and functions as limiting element for the distal end of the basket (5) and through which the guidewire (2) has been passed.

Abstract: The invention relates to a valvulotome (1) guided by guidewire/catheter comprising a guidewire (2), a first inner tube (3) accommodating the guidewire (2), an expandable basket (5) with cutting elements (7), with said basket (5) being the distal end of a second tube (4) through which the first inner tube (3) extends, a catheter tube (8) through which the second inner tube (4) extends, said catheter tube being suited to accommodate and guide the expandable basket (5) in non-expanded state, a sleeve (6) that forms the distal end of the first tube (3) and functions as limiting element for the distal end of the basket (5) and through which the guidewire (2) has been passed.