Determining a modality of an extracorporeal blood circuit

Inventors

Doyle, Matthew J.

Assignees

Fresenius Medical Care Holdings Inc

Abstract

This disclosure relates to medical fluid pumping systems and related devices and methods. In some aspects, a blood treatment system includes a user interface; a processor in communication with the user interface and configured to perform operations including: presenting instructions on the user interface, the instructions pertaining to at least one modality of a set of modalities, wherein the set of modalities include hemodialysis (HD), hemofiltration (HF), and hemodiafiltration (HDF), wherein the instructions pertain to a component of a blood treatment machine of the blood treatment system; receiving information associated with the component of the blood treatment machine; and eliminating modalities from the set of modalities to determine a modality of the blood treatment machine based on the received information.

Core Innovation

The invention relates to an extracorporeal blood treatment machine and a blood treatment system that determines which modalities are feasible based on hardware components actually present in the blood treatment machine. A processor receives information from sensors configured to detect a presence or an absence of a substitution pump and corresponding fluid line, and also detects a presence or an absence of a further component of the blood treatment machine. The processor uses this information to determine whether the substitution pump and corresponding fluid line are installed, and whether the further component is installed.

Based on the sensor-detected installation state, the processor eliminates from a set of instructions at least one instruction pertaining to an online modality requiring the substitution pump and corresponding fluid line when the substitution pump and corresponding fluid line are determined not to be installed, and eliminates at least one instruction pertaining to an offline modality not requiring the substitution pump and corresponding fluid line when the substitution pump and corresponding fluid line are determined to be installed. In parallel, the processor eliminates from the set of instructions at least one instruction pertaining to a modality requiring the further component when the further component is determined not to be installed, and eliminates at least one instruction pertaining to a modality not requiring the further component when the further component is determined to be installed.

After elimination, the processor presents the set of instructions on a user interface. The set of instructions pertains to a plurality of possible modalities that includes hemodialysis (HD), hemofiltration (HF), and hemodiafiltration (HDF). The disclosure also includes interactive setup instructions in a user interface, modality transitions and disposable replacement scenarios, and pathways corresponding to online priming and offline priming, supported by sensor presence detection and a pressure test with a substitution fluid bolus and venous pressure and transmembrane pressure measurements to confirm substitution fluid line placement.

Claims Coverage

The document includes one independent claim. The claim covers a blood treatment system that uses sensor-detected installation presence to eliminate infeasible modality-related instructions before presenting selectable modalities on a user interface, and it explicitly includes HD, HF, and HDF as modalities in the plurality of possible modalities.

Overall, the independent claim integrates sensor-detected installation presence (substitution pump/fluid line and a further component) with processor logic that eliminates modality-related instructions so that only instructions consistent with the detected hardware state are presented for selectable modalities including HD, HF, and HDF.

Stated Advantages

Documented Applications

No documented applications found