Dialysis system and method including a flow path insulator

A peritoneal dialysis system comprising:

• a cycler;
• a disposable set including a patient line and a drain line, the cycler configured to pump fresh dialysis fluid to a patient via the patient line and used dialysis fluid from the patient via the drain line;
• one of (i) a water purifier for supplying purified water for mixing to form fresh dialysis fluid at the disposable set, (ii) at least one fresh dialysis fluid container provided as part of the disposable set for supplying fresh dialysis fluid, or (iii) a dialysis fluid preparation unit configured to supply fresh dialysis fluid to the disposable set;
• and
• at least one flow path insulator provided at or by at least one of the cycler, the water purifier, the dialysis fluid preparation unit, or along the drain line, the flow path insulator configured to separate used dialysis fluid flowing along the drain line wherein the at least one flow path insulator includes a first pump positioned and arranged to pump used dialysis fluid through the drain line and a second pump positioned and arranged to introduce air or water into the drain line to create used dialysis fluid flow separating segments to limit current flowing from the patient to a house drain.

A peritoneal dialysis system comprising:

• a cycler;
• a disposable set including a patient line and a drain line, the cycler configured to pump fresh dialysis fluid to a patient via the patient line and used dialysis fluid from the patient via the drain line;
• one of (i) a water purifier for supplying purified water for mixing to form fresh dialysis fluid at the disposable set, (ii) at least one fresh dialysis fluid container provided as part of the disposable set for supplying fresh dialysis fluid, or (iii) a dialysis fluid preparation unit configured to supply fresh dialysis fluid to the disposable set;
• and
• at least one flow path insulator provided at or by at least one of the cycler, the water purifier, the dialysis fluid preparation unit, or along the drain line, the flow path insulator configured to separate used dialysis fluid flowing along the drain line to limit current flowing from the patient to a house drain,
• wherein the at least one flow path insulator includes a chamber that receives used dialysis fluid, the chamber hinged via a hinge and configured to tip via weight of the used dialysis fluid so that the used dialysis fills a siphon enough such that head pressure within the siphon causes used dialysis fluid to flow from the siphon.

A peritoneal dialysis system comprising:

• a cycler;
• a disposable set including a patient line and a drain line, the cycler configured to pump fresh dialysis fluid to a patient via the patient line and used dialysis fluid from the patient via the drain line;
• one of (i) a water purifier for supplying purified water for mixing to form fresh dialysis fluid at the disposable set, (ii) at least one fresh dialysis fluid container provided as part of the disposable set for supplying fresh dialysis fluid, or (iii) a dialysis fluid preparation unit configured to supply fresh dialysis fluid to the disposable set;
• and
• at least one flow path insulator provided at or by at least one of the cycler, the water purifier, the dialysis fluid preparation unit, or along the drain line, the flow path insulator configured to separate used dialysis fluid flowing along the drain line, wherein the at least one flow path insulator includes an aspirator configured to create flow separating segments to limit current flowing from the patient to a house drain, and a chamber configured to collect the flow separating segments from the aspirator.

A peritoneal dialysis system comprising:

• a cycler;
• a disposable set including a patient line and a drain line, the cycler configured to pump fresh dialysis fluid to a patient via the patient line and used dialysis fluid from the patient via the drain line;
• one of (i) a water purifier for supplying purified water for mixing to form fresh dialysis fluid at the disposable set, (ii) at least one fresh dialysis fluid container provided as part of the disposable set for supplying fresh dialysis fluid, or (iii) a dialysis fluid preparation unit configured to supply fresh dialysis fluid to the disposable set;
• and
• at least one flow path insulator provided at or by at least one of the cycler, the water purifier, the dialysis fluid preparation unit, or along the drain line, the flow path insulator configured to separate used dialysis fluid flowing along the drain line, wherein the at least one flow path insulator includes a first siphon and a second siphon, wherein the system is configured to prevent the first siphon from creating enough head pressure for used dialysis fluid flow from the first siphon to the second siphon until head pressure in the second siphon falls such that used dialysis fluid does not flow from the second siphon, separating used dialysis fluid flowing along the drain line to limit current flowing from the patient to a house drain.

A peritoneal dialysis system comprising:

• a cycler;
• a disposable set including a patient line and a drain line, the cycler configured to pump fresh dialysis fluid to a patient via the patient line and used dialysis fluid from the patient via the drain line;
• one of (i) a water purifier for supplying purified water for mixing to form fresh dialysis fluid at the disposable set, (ii) at least one fresh dialysis fluid container provided as part of the disposable set for supplying fresh dialysis fluid, or (iii) a dialysis fluid preparation unit configured to supply fresh dialysis fluid to the disposable set;
• and
• at least one flow path insulator provided at or by at least one of the cycler, the water purifier, the dialysis fluid preparation unit, or along the drain line, the flow path insulator configured to separate used dialysis fluid flowing along the drain line, wherein the at least one flow path insulator includes a first chamber having an output directed towards but separate from a second chamber, a first valve upstream from the first chamber and a second valve upstream of the second chamber, the first and second valves sequenced to separate used dialysis fluid flowing along the drain line to limit current flowing from the patient to a house drain.

A peritoneal dialysis system comprising:

• a cycler;
• a disposable set including a patient line and a drain line, the cycler configured to pump fresh dialysis fluid to a patient via the patient line and used dialysis fluid from the patient via the drain line;
• one of (i) a water purifier for supplying purified water for mixing to form fresh dialysis fluid at the disposable set, (ii) at least one fresh dialysis fluid container provided as part of the disposable set for supplying fresh dialysis fluid, or (iii) a dialysis fluid preparation unit configured to supply fresh dialysis fluid to the disposable set;
• and
• at least one flow path insulator provided at or by at least one of the cycler, the water purifier, the dialysis fluid preparation unit, or along the drain line, the flow path insulator configured to separate used dialysis fluid flowing along the drain line, wherein the at least one flow path insulator includes a container located upstream from a first chamber, the first chamber located upstream from a first pump, the first pump located upstream from a second chamber, the second chamber located upstream from a second pump, the first and second pumps sequenced to separate used dialysis fluid flowing along the drain line to limit current flowing from the patient to a house drain.

A peritoneal dialysis system comprising:

• a cycler;
• a disposable set including a patient line and a drain line, the cycler configured to pump fresh dialysis fluid to a patient via the patient line and used dialysis fluid from the patient via the drain line;
• one of (i) a water purifier for supplying purified water for mixing to form fresh dialysis fluid at the disposable set, (ii) at least one fresh dialysis fluid container provided as part of the disposable set for supplying fresh dialysis fluid, or (iii) a dialysis fluid preparation unit configured to supply fresh dialysis fluid to the disposable set;
• and
• at least one flow path insulator provided at or by at least one of the cycler, the water purifier, the dialysis fluid preparation unit, or along the drain line, the flow path insulator configured to separate used dialysis fluid flowing along the drain line, wherein the at least one flow path insulator includes a first chamber, a second chamber and a pump downstream from the first and second chambers, first and second inlet valves in fluid communication with the first and second chambers, respectively, first and second outlet valves in fluid communication with the first and second chambers, respectively, the first and second inlet and outlet valves sequenced such that used dialysis fluid flow into one of the first and second chambers occurs while used dialysis fluid is removed from the other of the first and second chambers, separating used dialysis fluid flowing along the drain line to limit current flowing from the patient to a house drain.

A peritoneal dialysis system comprising:

• a cycler;
• a disposable set including a patient line and a drain line, the cycler configured to pump fresh dialysis fluid to a patient via the patient line and used dialysis fluid from the patient via the drain line;
• one of (i) a water purifier for supplying purified water for mixing to form fresh dialysis fluid at the disposable set, (ii) at least one fresh dialysis fluid container provided as part of the disposable set for supplying fresh dialysis fluid, or (iii) a dialysis fluid preparation unit configured to supply fresh dialysis fluid to the disposable set;
• and
• at least one flow path insulator provided at or by at least one of the cycler, the water purifier, the dialysis fluid preparation unit, or along the drain line, the flow path insulator configured to separate used dialysis fluid flowing along the drain line, wherein the at least one flow path insulator includes a pivoting device that pivots about a pivot, the pivoting device including first and second compartments that alternatingly fill and drain used dialysis fluid, separating the used dialysis fluid flowing along the drain line to limit current flowing from the patient to a house drain.

A peritoneal dialysis system comprising:

• a cycler;
• a disposable set including a patient line and a drain line, the cycler configured to pump fresh dialysis fluid to a patient via the patient line and used dialysis fluid from the patient via the drain line;
• one of (i) a water purifier for supplying purified water for mixing to form fresh dialysis fluid at the disposable set, (ii) at least one fresh dialysis fluid container provided as part of the disposable set for supplying fresh dialysis fluid, or (iii) a dialysis fluid preparation unit configured to supply fresh dialysis fluid to the disposable set;
• and
• at least one flow path insulator provided at or by at least one of the cycler, the water purifier, the dialysis fluid preparation unit, or along the drain line, wherein the flow path insulator includes a coiled length of tubing sized to increase a resistance to a leakage current residing in used dialysis fluid flowing through the coiled length of tubing.