Peritoneal catheter
AssigneeAmerican Hospital Supply Corporation
InventorsAlexander S. Borsanyi, Peter Ivanovich, Urte Vaughan
Life of this patent
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Abstract
A two-section implantable catheter for peritoneal dialysis is disclosed, the catheter having a retainer section which permanently ingrows into the abdominal wall and a catheter tube section. The two sections are normally connected together in a fluid-tight seal but may be separated to permit replacement of the tube section of an indwelling catheter without necessitating surgical removal of the retainer section.
Claims12
A peritoneal catheter including a tube section and a retainer section, said tube section comprising an elongated flexible plastic tube for delivering and withdrawing dialysate and a relatively rigid tubular plug permanently secured to and extending about an intermediate portion of said tube, said plug having tapered longitudinal surfaces adjacent the ends thereof and having an annular recess between said tapered surfaces, said retainer section comprising a resilient sleeve having a bore for sealingly and releasably receiving said plug and having a porous resilient tissue ingrowth ring secured to the outer surface of said sleeve, whereby, following a term of implantation of said catheter, said tube section may be removed from a patient for cleaning or replacement without necessitating removal of said retainer section and without disturbing the ingrowth of tissue into said ring.
A peritoneal catheter including a tube section and a retainer section, said tube section comprising an elongated flexible plastic tube for delivering and withdrawing dialysate and a relatively rigid tubular plug permanently secured to and extending about an intermediate portion of said tube, said plug having tapered longitudinal surfaces adjacent the ends thereof and having an annular recess between said tapered surfaces, said retainer section comprising a resilient sleeve having a generally cylindrical bore for sealingly and releasably receiving said plug and having a porous resilient tissue ingrowth ring secured to the outer surface of said sleeve, said sleeve being provided with reinforcing means of limited expandability in the portion thereof extending about said annular recess of said plug when said tube section and retainer section are fully assembled.
Dependencies are inferred from the claim text.