Medical apparatus for the preparation of medical fluid

Method of setting up a medical apparatus for the preparation of medical fluid having:

• a movable member movably mounted to a support structure and carrying a first port;
• a first fluid line carried by the support structure and configured to be put into fluid communication with a source of fluid, the first fluid line being in fluid communication with the first port;
• a second fluid line carried by the support structure and being in fluid communication with a second port;
• wherein the movable member is mounted to the support structure for movement between at least a retracted configuration, in which the first port and the second port are coupled to each other, and an unretracted configuration, in which the first port and the second port are spaced apart from each other;
• the method comprising:
• locking the movable member in the retracted configuration;
• releasing the movable member from its retracted configuration after locking the movable member in the retracted configuration;
• biasing the movable member towards or away from the retracted configuration, wherein biasing the movable member towards the retracted configuration draws the movable member towards the retracted configuration after the movable member is released from its retracted configuration, and wherein biasing the movable member away from the retracted configuration forces the movable member away from the retracted configuration after the movable member is released from the retracted configuration;
• moving the movable member into a coupling configuration after releasing the movable member from its retracted configuration;
• placing a first container in a coupling position with respect to the movable member;
• and
• moving the movable member from the coupling configuration into an operating configuration in which the first port receives a first connection port of the first container.

An extracorporeal blood treatment apparatus, comprising:

• a medical apparatus for the preparation of medical fluid the medical apparatus comprising:
• a support structure;
• a movable member movably mounted to the support structure and carrying a first port;
• a first fluid line carried by the support structure and configured to be put into fluid communication with a source of fluid, the first fluid line being in fluid communication with the first port;
• a second fluid line carried by the support structure and being in fluid communication with a second port;
• biasing means;
• and
• locking means;
• wherein the first port is configured to receive a first connection port of a container of at least one substance to be added to a fluid coming from the source of fluid;
• wherein the movable member is mounted to the support structure for movement between at least a retracted configuration, in which the first port and the second port are coupled to each other, and an unretracted configuration, in which the first port and the second port are spaced apart from each other;
• wherein the locking means is configured to releasably hold the movable member in its retracted configuration;
• and
• the biasing means is configured to operate in at least one of a repulsion mode and an attraction mode,
• wherein in the repulsion mode, the biasing means exerts on the movable member, at least when the locking means release the movable member from its retracted configuration, a biasing force directing the movable member away from its retracted configuration, and
• wherein in the attraction mode, the biasing means exerts on the movable member, at least when the movable member is in its unretracted configuration, a biasing force directing the movable member towards its retracted configuration;
• and
• a waste line connected to an outlet of a dialysis fluid chamber;
• wherein the medical apparatus for the preparation of medical fluid being connected to supply fluid to at least one of a dialysis fluid line and a replacement fluid line of the extracorporeal blood treatment apparatus.

A medical apparatus for the preparation of medical fluid, comprising:

• a support structure;
• a movable member, movably mounted to the support structure and carrying a first port;
• a first fluid line carried by the support structure and configured to be put into fluid communication with a source of fluid, the first fluid line being in fluid communication with the first port;
• a second fluid line carried by the support structure and being in fluid communication with a second port;
• wherein the first port is configured to receive a first connection port of a container of at least one substance to be added to a fluid coming from the source of fluid;
• wherein the movable member is configured to move between at least a retracted configuration, in which the first port and the second port are coupled to each other, and an unretracted configuration, in which the first port and the second port are spaced apart from each other;
• and
• a lock configured to releasably lock the movable member in the retracted configuration;
• wherein the movable member is biased away from the retracted configuration at least when the movable member is not locked in the retracted configuration, or wherein the movable member is biased towards the retracted configuration at least when the movable member is in the unretracted configuration.