BALLOON DILATION CATHETER

摘要

Disclosed is a balloon dilation catheter comprising an outer tube (1), a strengthening tube (2), a balloon (4), an inner tube (3) and a connector (6). The strengthening tube (2) runs through the inner chamber of the outer tube (1). The distal end of the strengthening tube (2) passes through the balloon (4), and is sealed with and fixed to the distal end of the balloon (4). Multiple hollow grooves (21) are provided on the strengthening tube (2). The inner tube (3) runs through the inner chamber of the strengthening tube (2). The distal end of the inner tube (3) protrudes from the distal end of the strengthening tube (2), and is sealed with and fixed to the balloon (4). The connector (6) is fixed to the proximal end of the outer tube (1), and thereon are set a first connection port (61) and a second connection port (62). Compared with current strengthening tubes formed as a whole tube, the present balloon dilation catheter can change bending angle automatically and flexibly to fit with the blood vessels, thus reducing damage to blood vessels during the processes of delivery and withdrawal.