Catheter with temporary vena cava filter

摘要

This invention relates to a catheter with a temporary vena cava filter comprising a tube-like basic body with a proximal end and a distal end, a filter element comprising a front supporting member connected to the basic body and, positioned at a distance thereof in the direction of the proximal end, a rear supporting member connected to the basic body, a number of pliable strips arranged at equal distances from one another around the circumference of the basic body each comprising opposite ends which are connected to the front and rear supporting member respectively and expanding means which can move at least one of the supporting members towards and away from the other supporting member for the purpose of bending or straightening the pliable strips and can be controlled at the proximal end. The pliable strips are connected to at least one of the supporting members by detachable engaging means which can be moved between an engaging position in which they fix the strip end to the supporting member and a disengaging position in which they leave the strip end free and wherein the engaging means are associated with control means arranged close to the proximal end for the purpose of moving the engaging means from the engaging position into the disengaging position. IMAGE