Patent ID: 11938300
Assignee: PFM MEDICAL AG
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 24:
25. A patient infusion device for dosed dispensing of an infusion fluid to a patient, comprising:
a fluid vessel to accommodate the infusion fluid;
a patient access;
an infusion line having an overall length, defined by a first end and a second end, arranged between the fluid vessel and the patient access during use of the device;
a section of the infusion line, having a predefined length less than the overall length of the infusion line, wherein the predefined length has a predefined inner diameter, wherein the predetermined inner diameter is less than a diameter of a further section of the infusion line;
wherein the fluid vessel, the infusion line and the patient access are in fluid communication with one another and the infusion line is directly connected to the fluid vessel;
wherein the device is a single-use device configured for a one-time use and configured to dispense an amount of infusion fluid from the fluid vessel through the infusion line to the patient access over a predetermined time period in a manner dependent on a predefined height at which the fluid vessel is arranged above the patient access; and
wherein a flow of the infusion fluid through the overall infusion line length is regulated only by the section of the overall infusion line length having the predefined inner diameter and the predefined length itself without an additional regulation device positioned along the overall infusion line length to regulate the flow of the infusion fluid through the infusion line, whereby volumetric flow rate of the infusion fluid from the fluid vessel to the patient is limited by the infusion line;
wherein the fluid vessel includes a predetermined dosage instruction which identifies a predetermined time period over which the infusion fluid of the fluid vessel is dispensed, whereby the predetermined dosage instruction and time period are predetermined independent of the patient;
wherein the fluid vessel includes a reserve volume of the infusion fluid whereby the predetermined time period over which the infusion fluid of the fluid vessel is dispensed is extendable beyond the predetermined time period;
wherein the fluid vessel includes a fill level indicator;
wherein the fill level indicator includes a zero-volume fill level marking;
wherein the fill level indicator includes a reserve volume fill level indicator;
wherein the reserve volume fill level indicator identifies the reserve volume; and
wherein the reserve volume fill level indicator includes at least one reserve volume marking which is below the zero-volume fill level marking and corresponds to a volume of the reserve volume.