Back to results
US 2018/0021501 A1Published application
Peritoneal dialysate preparation and sensor system
AssigneeMedtronic, Inc.
InventorsMartin T. Gerber, Christopher M. Hobot, David B. Lura, Thomas E. Meyer, VenKatesh R. Manda
Life of this patent
Estimating the term…
Abstract
The invention relates to devices, systems, and methods for generating a peritoneal dialysate having specified concentrations of one or more solutes. The devices, systems and methods use conductivity sensors, flow meters, and composition sensors to control addition of osmotic agents and ion concentrates into a peritoneal dialysate generation flow path.
Claims20
A dialysate preparation system for use in peritoneal dialysis, comprising:
- a first fluid line fluidly connected to a water purification module;
- at least one ion concentrate source fluidly connected to the first fluid line through a first infusate line;
- the first infusate line having a first concentrate pump;
- one or more osmotic agent sources fluidly connected to the first fluid line through one or more secondary infusate lines;
- the secondary infusate lines comprising a secondary concentrate pump forming part of the one or more secondary infusates lines;
- wherein at least one or more conductivity sensors are positioned in the first fluid line upstream of the first infusate line;
- at least one or more secondary conductivity sensors are positioned in the first fluid line downstream of the first infusate line and upstream of the secondary infusate lines;
- and at least one composition sensor positioned in the first fluid line downstream of the one or more secondary infusate lines;
- the first fluid line fluidly connectable to an integrated cycler.
6 more elements
A method of generating a peritoneal dialysate, comprising:
- a) pumping water from a water source through a water purification module into a first fluid line;
- b) measuring a first conductivity of fluid in the first fluid line;
- c) pumping an ion concentrate from at least one ion concentrate source through a first infusate line into the first fluid line;
- d) measuring a second conductivity of the fluid in the first fluid line downstream of the first infusate line;
- e) pumping an osmotic agent concentrate from an osmotic agent source through a second infusate line into the first fluid line;
- f) measuring a first osmotic agent concentration in the first fluid line downstream of the second infusate line.
3 more elements
Dependencies are inferred from the claim text.