Apparatus and method for the automatic, weight-dependent filling of a hose system
AssigneeFresenius Medical Care Deutschland GmbH
InventorsManuel Hassler, Klaus Wolf, Peter Wabel
Life of this patent
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Abstract
A method and an apparatus are provided for the automatic, weight-dependent filling of a hose system, in particular for a gravimetric cycler for peritoneal dialysis, having only one scale. The hose system includes at least three line sections for connection to at least one drainage bag, to at least one solution bag and to a patient. The method includes opening at least one bag valve and at least drainage: valve, and deriving a first opening duration of the valves from a weight of the solution bag measured by means of the scale and from at least one characteristic.
Claims15
A method for the automatic, weight-dependent flushing or filling of a hose system for a gravimetric cycler for peritoneal dialysis, wherein the gravimetric cycler contains a bag of fresh dialysate and a drainage bag below the bag of fresh dialysate, the gravimetric cycler comprises the hose system, a scale, a regulation/control, a bag valve, and a drainage valve, and the hose system includes a first line section for connection to the drainage bag, a second line section for connection to the bag of fresh dialysate, and a third line section for connection to a patient, the method comprising:
- measuring a weight of the bag of fresh dialysate, with the scale;
- and
- opening, for an opening duration, the bag valve and the drainage valve, wherein the opening duration is derived from the measured weight of the bag of fresh dialysate, and from an opening duration stored in the regulation/control, wherein the opening duration corresponds to the measured weight of the bag of fresh dialysate, and the opening of the bag valve and of the drainage valve is actuated based on an opening signal sent from the regulation/control to the bag valve and to the drainage valve.
An apparatus for automatic, weight-dependent filling of a hose system for a gravimetric cycler for peritoneal dialysis, wherein
- the gravimetric cycler contains a bag of fresh dialysate and a drainage bag below the bag of fresh dialysate, the gravimetric cycler comprises the hose system, a scale, a regulation/control, a bag valve, and a drainage valve,
- the hose system includes a first line section for connection to the drainage bag, a second line section for connection to the bag of fresh dialysate, and a third line section for connection to a patient,
- the scale is configured to measure a weight of the bag of fresh dialysate,
- the regulation/control unit has stored therein different opening durations corresponding to different weights of bags of fresh dialysate,
- the regulation/control unit is configured to control opening of the bag valve and the drainage valve, and
- the regulation/control unit is further configured to derive the opening duration of the bag valve and the drainage valve from the stored opening duration that corresponds to the weight of the bag of fresh dialysate as measured by the scale.
Dependencies are inferred from the claim text.