A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 25/10 (2006.01) A61M 29/00 (2006.01) A61M 25/00 (2006.01) A61M 29/02 (2006.01)
Patent
CA 2264559
This invention is an improved balloon catheter (10) wherein an inferior vena cava blood shunt or bypass (22) is provided. Posterior (20) and anterior (25) ports in the wall of the catheter (10) connect to a common lumen (22) within the catheter (10) forming a shunt or bypass (22) for blood flowing in the blood vessel (27). The blood shunt or bypass (22) spans the blockage in the blood vessel (27) generated by enlargement of the balloons (12, 14) of the balloon catheter (10). Bypass port closure apparatus (32, 36, 40) is provided which is operated at the external end of the catheter (10). The bypass port closure device (32, 36, 40) functions to open (Figs. 3a, 3c, and 3e) and close (Figs. 3b, 3d and 3f) at least one of the ports (20, 25) of the bypass (22), effectively opening and closing the bypass (22).
L'invention concerne un cathéter à ballonnets amélioré (10) comportant une dérivation (22) du sang de la veine cave inférieure. Des orifices postérieur (20) et antérieur (25) dans la paroi du cathéter (10) sont reliés à une lumière commune (22) à l'intérieur du cathéter (10), ce qui constitue une dérivation (22) du sang s'écoulant dans le vaisseau sanguin (27). Cette dérivation (22) permet de franchir le blocage du vaisseau sanguin (27) généré par l'agrandissement des ballonnets (12, 14) du cathéter (10). Un dispositif (32, 40) sert à fermer les orifices de dérivation et est mis en service au niveau de l'extrémité extérieure du cathéter (10). Ce dispositif (32, 40) sert à ouvrir (figures 3a et 3c) et à fermer (figures 3b et 3d) au moins un des orifices (20, 25) de la dérivation (22), ce qui ouvre et ferme cette dernière.
Delcath Systems Inc.
Glickman Morton G.
Gowling Lafleur Henderson Llp
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