Patent ID: 8628502

Claim:
An implantable dialysis valve device for fluid connection with a blood vessel, comprising: an implantable valve actuation device sized to fit in a body limb proximate to a vein; a blood input graft connected with the implantable valve actuation device to attach with a blood vessel for receiving blood when the implantable valve actuation device is implanted; a blood output graft connected with the implantable valve actuation device to attach with a blood vessel for outputting blood when the implantable valve actuation device is implanted; a flexible implantable tube coupled to the implantable valve actuation device to convey blood received from the blood input graft, the flexible implantable tube extending for a longitudinal length and defining a substantially smooth inner surface; the implantable valve actuation device comprising: a self-sealing membrane configured to be repeatedly punctured by an infusion needle when the self-sealing membrane is implanted adjacent to an underside of a skin region, a hydraulic port adjacent to the self-sealing membrane such that the self-sealing membrane is positioned between the hydraulic port and the skin region when the self-sealing membrane is implanted adjacent to the underside of the skin region, and a hydraulic line extending between the hydraulic port and a controllable valve actuation member; the controllable valve actuation member being configured to selectively adjust blood flow through the flexible tube in response to pressurized injection of a hydraulic fluid through the self- sealing membrane and into the hydraulic line extending between the hydraulic port and the controllable valve actuation member, wherein the flexible implantable tube extends through the controllable valve actuation member.