A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 25/04 (2006.01) A61M 25/10 (2006.01)
Patent
CA 2281885
A back-up retention member drainage catheter (10) for insertion in the bladder and urethra of a patient undergoing a radical prostatectomy surgical procedure. The drainage catheter includes an elongated tubular member (11) having a drainage lumen (14) extending longitudinally therein with an external drainage port (15, 16) disposed near the distal end (12) of the tubular member. A back-up retention member (18) and, in particular, a first balloon (20) is disposed on the elongated tubular member near the distal end and proximal the external drainage port. A primary retention member (19) and, in particular, a second retention balloon (22) is also disposed on the elongated tubular member around the first retention balloon. First and second inflation lumens (21, 23) extend longitudinally through the elongated tubular member and communicate internally with the first and second retention balloons, respectively. To maintain independent inflation of the two retention balloons, the second inflation lumen communicates externally with the first retention balloon. To maintain the balloons in an expanded state, first and second one-way valves (27, 29) are disposed at the proximal end of the first and second inflation lumens, respectively. A suture tether (31) is positioned through a tether lumen (26) for securing the drainage catheter percutaneously through the patient should the physician so desire.
L'invention a trait à un élément de retenue de secours pour cathéter de drainage (10) à introduire, via l'urètre, dans la vessie d'un patient subissant une prostatectomie radicale. Ce cathéter de drainage comporte un élément tubulaire allongé (11) renfermant une lumière de drainage (14) le traversant intérieurement dans le sens de la longueur. L'orifice extérieur (15, 16) de cette lumière est proche de l'extrémité distale (12) de l'élément tubulaire. Un élément principal de retenue (19), notamment, un second ballonnet de retenue (22) est disposé sur l'élément tubulaire allongé autour du premier ballon de retenue. Deux lumières de gonflage (21, 23) traversent l'élément tubulaire allongé et communiquent, respectivement, avec l'intérieur des ballonnets de retenue. La seconde lumière de gonflage ne communique qu'avec l'extérieur du premier ballonnet de retenue et ce, afin de pouvoir gonfler séparément les deux ballonnets. Deux clapets de non-retour (27, 29) sont prévus sur l'extrémité proximale des lumières de gonflage afin de maintenir les ballonnets gonflés. Un fil de suture (31) vient se placer dans une lumière d'attache (26), ce qui permet de fixer le cathéter de drainage par voie percutanée là où le souhaite le médecin.
Roemer Frederick D.
Rutner Alvin B.
Cook Urological Inc.
Kirby Eades Gale Baker
LandOfFree
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