A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 25/10 (2006.01)
Patent
CA 2213474
A device for dilating at least an obstructed portion (12) of the urethra 10, includes a urinary catheter 1;22) having a proximal portion and a distal portion; a dilation balloon (34) capable of expanding radially outwardly disposed between the proximal and distal portion of the catheter (22); and a pressure source (32) capable of sequentially contracting under pressure. The pressure source (32) and dilation balloon (34) are in fluid communication through a conduit (44 or 46) which enables fluid to flow from the pressure source (32) to the dilation balloon (34) at a predetermined gradual rate when the pressure source (32) is contracting, whereby the balloon (34) expands gradually radially outwardly to effect the slow dilation of the urethra (10 and 12). A method for dilating the obstructed portion (12) of the urethra (10) and for treating prostatic hyperplasia is also provided.
L'invention concerne un dispositif permettant de dilater au moins une section obstruée (12) de l'urètre (10), qui comprend: une sonde uninaire (22) dotée d'une partie proximale et d'une partiedistale; une ballon dilatateur (34) offrant la possibilité d'une dilatation radiale vers l'extérieure et disposée entre les parties proximale et distale de la sonde (22); enfin, une source de pression (32) pouvant se contracter de manière séquencielle sous l'effet de la pression. La source de pression (32) et le ballon dilatateur (34) sont reliés par un conduit (44 ou 46) qui permet au liquide utilisé de s'écouler depuis la source de pression (32) vers le ballon dilatateur (34) selon un débit graduel prédéterminé lorsque la source de pression (32) se contracte. Alors, le ballon (34) se dilate progressivement de manière radiale vers l'extérieure, ce qui permet de dilater lentement l'urètre (10, 12). On décrit également un procédé pour la dilatation des sections obstruées (12) de l'urètre (10) et pour le traitement de l'hyperplasie prostatique.
Burton John Hanley
Staehle Bradford George
American Medical Systems Inc.
Smart & Biggar
LandOfFree
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