APPARATUS FOR EXTRACORPOREAL BLOOD TREATMENT, COMPRISING A MEASURING DEVICE FOR DETERMINING THE LUMINESCENCE OF THE SPENT DIALYSATE

• US 20130153474A1
• Filed: 06/10/2011
• Published: 06/20/2013
• Est. Priority Date: 06/11/2010
• Status: Abandoned Application

• Current Assignee: B. Braun Avitum AG (B. Braun Holding GmbH & Co. KG)
• Original Assignee: B. Braun Avitum AG (B. Braun Holding GmbH & Co. KG)
• Inventors: Frorip, Aleksandr, Nacke, Christoph, Castellarnau, Alex, Moll, Stefan, Meibaum, Joern
• Application Number:
  US13/702,846
• Publication Number:
  US 20130153474A1
• Time in Patent Office: Days
• US Class Current: 210/93
• CPC Class Codes: A61M 1/16 with membranes
• CPC Class Codes: A61M 1/1609 after use, i.e. downstream of dialyser
• CPC Class Codes: A61M 1/1692 Detection of blood traces in dialysate
• CPC Class Codes: A61M 2205/3306 Optical measuring means
• CPC Class Codes: A61M 2205/50 with microprocessors or computers

Abstract

The invention relates to an apparatus for extracorporeal blood treatment having a dialyzer which is divided into a first and a second chamber 29, 30 by means of a semipermeable membrane wherein the first chamber 29 is arranged in a dialysate path and the second chamber 30 can be connected to a patient'"'"'s blood circulation by means of a blood supply line 32 and a blood discharge line 31, an inlet 20 for fresh dialysate, an outlet 36 for spent dialysate, a measuring device 37, wherein the measuring device 37 has at least one radiation source 1 for substantially monochromatic electromagnetic radiation. Thereby the measuring device 37 for determination of a luminescence of the spent dialysate flowing through the outlet 36 has at least one detector system (5) for detecting the intensity of the electromagnetic radiation generated by luminescence.

Claims

1-15. -15. (canceled)

16. An apparatus for extracorporeal blood treatment comprising

a dialyzer which is divided into a first and a second chamber by means of a semipermeable membrane, wherein the first chamber is arranged in a dialysate path and second chamber is connected to a patient'"'"'s blood circulation by means of a blood supply line and a blood discharge line,

an inlet for fresh dialysate,

an outlet for spent dialysate,

a measuring device that is arranged in the outlet, wherein the measuring device includes at least one radiation source for substantially monochromatic electromagnetic radiation, characterized in that

the measuring device for determination of a luminescence of the spent dialysate flowing through the outlet includes at least one detector system for detection of the intensity of the electromagnetic radiation generated by luminescence.

17. The apparatus according to claim 16, wherein that the radiation source for emission of electromagnetic radiation is designed in the range of 1 nm to 750 nm, particularly in the range of ultra-violet radiation of 1 nm to 380 nm.

18. The apparatus according to claim 16, wherein that the detector system for detection electromagnetic radiation is designed in the range of 1 nm to 750 nm.

19. The apparatus according to claim 16, wherein that the at least one radiation source for the substantially monochromatic electromagnetic radiation has a polychromatic radiation source and a monochromator, particularly an optical filter permeable for only a specific wave length or a bandpass filter with one or several pass ranges.

20. The apparatus according to claim 16, wherein that the at least one detector system for detection of the intensity of the electromagnetic radiation generated by luminescence has an optical filter permeable for only a specific wave length or a bandpass filter with one or several pass ranges.

21. The apparatus according to claim 16, wherein that the detector system is designed as a fluorescence detector.

22. The apparatus according to claim 16, wherein that the detector system with its optical axis is arranged substantially orthogonal to the optical axis of the radiation source.

23. The apparatus according to claim 16, wherein that the measuring device has a reference detector.

24. The apparatus according to claim 16, wherein that the measuring device has a light beam divider, which is arranged between radiation source and outlet.

25. The apparatus according to claim 16, wherein that the measuring device has an absorption detector which is preferably arranged in the optical axis of the radiation source, wherein the outlet is arranged between absorption detector and radiation source in their optical axis.

26. The apparatus according to claim 16, wherein that the radiation source is designed for pulsed or continuous emission of electromagnetic radiation.

27. The apparatus according to claim 16, wherein that it further has a microprocessor unit, a storage unit as well as an output unit.

28. The apparatus according to claim 27, wherein that the storage unit is designed for storage of reference data.

29. The apparatus according to claim 28, wherein that the microprocessor unit is designed for the modification of different apparatus parameters such as dialysate flow, blood flow, dialyzer or the like, by means of a comparison of the measured values with the reference data.

30. The apparatus according to one of claim 27, wherein that the measurement results provided by the detector system are displayable on the output unit, e.g. a printer or a monitor.

31. The apparatus according to one of claim 28, wherein that the measurement results provided by the detector system are displayable on the output unit, e.g. a printer or a monitor.

32. The apparatus according to one of claim 29, wherein that the measurement results provided by the detector system are displayable on the output unit, e.g. a printer or a monitor.