초록 ▼

A system for use in peritoneal dialysis consisting of a rigid tubular implantable device, a stabilizing tool and an access set. The implantable device includes a centrally positioned, outwardly projecting cannula spike whose side openings are normally closed by a resilient sleeve member. A stabilizi

A system for use in peritoneal dialysis consisting of a rigid tubular implantable device, a stabilizing tool and an access set. The implantable device includes a centrally positioned, outwardly projecting cannula spike whose side openings are normally closed by a resilient sleeve member. A stabilizing tool having a broad load distributing base is locked to an upper flange of the implanted device. An access set connected to a dialysis solution system includes a septum which is penetrable by the cannula spike. Penetration simultaneously depresses the resilient cannula sleeve exposing the side openings which allows fluid flow. The access set, stabilizing tool and implant device are locked together whenever fluid is able to flow between the peritoneal cavity and the dialysis solution system.

대표청구항 ▼

A percutaneous implant device especially suitable for peritoneal dialysis applications, the device comprising: (a) a substantially rigid tubular percutaneous body of biologially compatible material which extends through the skin when implanted so as to provide means for accessing the peritoneal cavi

A percutaneous implant device especially suitable for peritoneal dialysis applications, the device comprising: (a) a substantially rigid tubular percutaneous body of biologially compatible material which extends through the skin when implanted so as to provide means for accessing the peritoneal cavity through the interior of said device, said body having a distal end and proximal end, the proximal end being nearest the peritoneal cavity when implanted, said distal end including an outer flange about its circumference; (b) flexible subcutaneous catheter means in fluid-tight communication with the interior of said tubular body for providing fluid communication between an animal body exterior and said animal\s peritoneal cavity; (c) cannula means for controlling flow through said tubular body, said cannula means including a rigid tubular member having a closed end and at least one opening in the side wall of said tubular member adjacent said closed end, said tubular member being positioned within said tubular body such that said closed end faces the distal end of said tubular body, the open end of said tubular member being in fluid-tight communication with said tubular body such that all fluid passing from the distal end to the proximal end of said tubular body must pass through said openings in said cannula means; and (d) flexible cannula sleeve means providing a normally closed seal over said cannula means side openings, said sleeve means including a tubular, flexible sleeve member having a smaller inside diameter than the outside diameter of said cannula tubular member, said sleeve member being positioned over and around said tubular member from the proximal end of said tubular member and distally so as to normally completely cover and seal said tubular member side wall openings; said cannula means, rigid tubular percutaneous body and flexible sleeve member being constructed and arranged such that pressure exerted on the distal end of said sleeve member will cause same to collapse downwardly and outwardly such that said sleeve member no longer provides a seal over said tubular member side wall openings, said flexible sleeve member being highly resilient so as to return to its original sealing postion when such pressure is released.