Patent ID: 7993516

Claim:
An apparatus for extracorporeal blood treatment comprising: a body having a surface; a guiding and positioning projection protruding from the surface; and a given number of pumps protruding from the surface and configured to cooperate with a suitable fluid distribution circuitry to be associated to the apparatus, the protruding pumps and the guiding and positioning projection defining together respective U-shaped seats having a closed curved side and an open side, the U-shaped seats being configured to receive corresponding U-shaped tube lengths, said number of pumps comprising: a feeding pump configured to cooperate with a respective feeding line for fresh dialysis liquid of the distribution circuitry, wherein said fresh dialysis liquid flows in said feeding line, and said feeding pump acts on said fresh dialysis liquid to cause said fresh dialysis liquid to flow in said feeding line; an infusion pump configured to cooperate with a respective infusion line of the distribution circuitry; a suction pump configured to cooperate with a respective discharge line of the distribution circuitry, wherein fluid to be discharged flows in said discharge line, and said suction pump acts on said fluid to be discharged to cause said fluid to be discharged to flow in said discharge line; an auxiliary pre-infusion pump configured to cooperate with a respective auxiliary pre-infusion line of the distribution circuitry; and a blood pump designed to cooperate with a respective blood line of the fluid distribution circuitry, wherein blood withdrawn from a patient flows in said blood line, and said blood pump acts on said blood to cause said blood to flow in said blood line; wherein the surface of the apparatus body defines a first zone having said blood pump and at least one second zone opposite said first zone; wherein, under operating conditions, the first zone of the surface of the apparatus body is configured below the at least one second zone of said body, said at least one second zone having said feeding pump, said auxiliary pre-infusion pump, said infusion pump, and said suction pump; wherein said at least one second zone includes at least first and second half-parts configured side-by-side, the feeding pump and the infusion pump being configured in said first half-part, the auxiliary pre-infusion pump and the suction pump being configured in said second half-part; and wherein a U-shaped seat defined by the blood pump and the guiding and position projection faces in a downward direction, with an open side directed away from the at least one second zone, wherein a U-shaped seat defined by the infusion pump and the guiding and position projection faces a first lateral direction, with an open side directed away from the second half-part of the at least one second zone, and wherein a U-shaped seat defined by the feeding pump and the guiding and position projection faces a second lateral direction, with an open side directed away from the first half-part of the at least one second zone.