Method for determining at least one parameter of an extracorporeal blood circuit as well as apparatuses
AssigneeFresenius Medical Care Deutschland GmbH
InventorsJoachim Noack, Wei Zhang
Life of this patent
Estimating the term…
Abstract
A method for determining at least one parameter of an extracorporeal blood circuit includes the steps of filling an extracorporeal blood circuit, e.g., encompassing a medical functional device, a treatment device and/or a blood tube set, by introducing a fluid, and detecting a volume of the introduced fluid which is required for filling the extracorporeal blood circuit by a detection device. A control device, a treatment apparatus, a computer readable storage medium, a computer program product as well as a computer program are also described.
Claims26
A method for determining at least one parameter of an extracorporeal blood circuit, the method comprising:
- introducing a medical liquid at a flow rate into the extracorporeal blood circuit, the extracorporeal blood circuit comprising a blood treatment device to which a dialysate circuit is connected;
- detecting, at a first point in time, the introduced medical liquid at a first sensor location along the extracorporeal blood circuit;
- detecting, at a second point in time, the introduced medical liquid at a second sensor location along the extracorporeal blood circuit;
- determining or calculating a volume of the introduced medical liquid based on the flow rate and based on a time difference between the first point in time and the second point in time;
- and
- determining the at least one parameter of the extracorporeal blood circuit, wherein the at least one parameter of the extracorporeal blood circuit is determined based on the volume of the introduced medical liquid.
A control device of a medical treatment apparatus, the control device configured to:
- initiate a conveyance at a flow rate of a volume of a medical liquid into an extracorporeal blood circuit of the medical treatment apparatus, the extracorporeal blood circuit comprising a blood treatment device to which a dialysate circuit is connected;
- determine a first point in time when the medical liquid is detected at a first sensor location along the extracorporeal blood circuit;
- determine a second point in time when the medical liquid is detected at a second sensor location along the extracorporeal blood circuit;
- determine the volume of the medical liquid conveyed into the extracorporeal blood circuit based on the flow rate and based on a time difference between the first point in time and the second point in time;
- and
- determine at least one parameter of the extracorporeal blood circuit based on the determined volume of the medical liquid conveyed into the extracorporeal blood circuit.
A medical treatment apparatus comprising a control device and an extracorporeal blood circuit, the apparatus configured to:
- convey at a flow rate a volume of a medical liquid into the extracorporeal blood circuit, the extracorporeal blood circuit comprising a blood treatment device to which a dialysate circuit is connected;
- determine, by the control device, a first point in time when the medical liquid is detected at a first sensor located along the extracorporeal blood circuit;
- determine, by the control device, a second point in time when the medical liquid is detected at a second sensor located along the extracorporeal blood circuit;
- determine, by the control device, the volume of the medical liquid conveyed into the extracorporeal blood circuit based on the flow rate and based on a time difference between the first point in time and the second point in time;
- and
- determine, by the control device, at least one parameter of the extracorporeal blood circuit based on the determined volume of the medical liquid conveyed into the extracorporeal blood circuit.
Dependencies are inferred from the claim text.