User interface for blood treatment device

• US 20040084358A1
• Filed: 08/19/2003
• Published: 05/06/2004
• Est. Priority Date: 04/13/2001
• Status: Active Grant

• Current Assignee: Gambro Lundia AB (Baxter International Inc.)
• Original Assignee: CHF Solutions, Inc.
• Inventors: Hal Pert, Andrew, Gelfand, Mark, OʼMahony, John J.
• Granted Patent: US 6,923,782 B2
• Time in Patent Office: Days
• US Class Current: 210/94
• CPC Class Codes: A61M 1/16 with membranes
• CPC Class Codes: A61M 1/1692 Detection of blood traces in dialysate
• CPC Class Codes: A61M 1/3401 Cassettes therefor
• CPC Class Codes: A61M 1/3403 Regulation parameters
• CPC Class Codes: A61M 1/341 by measuring the filtrate rate or volume
• CPC Class Codes: A61M 1/3607 Regulation parameters
• CPC Class Codes: A61M 1/3609 Physical characteristics of the blood, e.g. haematocrit, urea
• CPC Class Codes: A61M 1/36222 Details related to the interface between cassette and machine
• CPC Class Codes: A61M 1/36224 with sensing means or components thereof
• CPC Class Codes: A61M 1/36225 with blood pumping means or components thereof
• CPC Class Codes: A61M 1/362264 the filter being a blood filter
• CPC Class Codes: A61M 1/3639 Blood pressure control, pressure transducers specially adapted therefor
• CPC Class Codes: A61M 1/3641 Pressure isolators
• CPC Class Codes: A61M 2205/14 Detection of the presence or absence of a tube, a connector or a container in an apparatus
• CPC Class Codes: A61M 2205/15 Detection of leaks
• CPC Class Codes: A61M 2205/18 with alarm
• CPC Class Codes: A61M 2205/3331 Pressure; Flow
• CPC Class Codes: A61M 2205/3344 Measuring or controlling pressure at the body treatment site
• CPC Class Codes: A61M 2205/3375 Acoustical, e.g. ultrasonic, measuring means
• CPC Class Codes: A61M 2205/50 with microprocessors or computers
• CPC Class Codes: A61M 2205/502 : User interfaces, e.g. screens or keyboards
• CPC Class Codes: G16H 20/40 : relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
• CPC Class Codes: G16H 40/63 : for local operation
• CPC Class Codes: G16H 50/20 : for computer-aided diagnosis, e.g. based on medical expert systems
• CPC Class Codes: Y10S 706/924 : Medical

Abstract

A graphical user interface for a medical instruments for a Renal Replacement Therapy is disclosed that includes a pictogram representation of the fluid path of an extracorporeal blood circuit that represents fluid lines, pumps and sensors. To assist the user in responding to alarms and rectifying faults in the system the source of a potential trouble is animated. The location of a trouble spot is easily identified by flashing of the corresponding element of the pictogram, change of color or thickness of a corresponding line.

Claims

1. A method to assist an operator in identifying a fault in a fluid path of a renal replacement therapy device comprising the steps of:

a. drawing blood from a patient into the fluid path, passing the blood through the path in the device, and returning the blood from the fluid path into the patient;

b. detecting a fault in the fluid path;

c. displaying a pictorial diagram of the fluid path on the machine graphic display, and

d. accentuating an element of the diagram of the fluid path where the fault has been detected.

2. A method as in claim 1 wherein the fault in the fluid path is an air bubble in the fluid path, in step (b) a location of the air bubble is detected, and in step (d) the element accentuated corresponds to the detected location of the air bubble in the fluid path.

3. A method as in claim 1 wherein the fault in the fluid path is a blood leak in the fluid path, in step (b) a location of the blood leak is detected, and in step (d) the element accentuated corresponds to the detected location of the blood leak in the fluid path.

4. A method as in claim 1 wherein the fault in the fluid path is an occlusion in the fluid path, in step (b) a location of the occlusion is detected, and in step (d) the element accentuated corresponds to the detected location of the occlusion in the fluid path.

5. A method as in claim 1 wherein the fault in the fluid path is in a filter in the fluid path, and in step (d) the element accentuated corresponds to the filter.

6. A method as in claim 1 wherein the pictorial diagram of the fluid path includes a line drawing showing the fluid path from the patient through the device and back to the patient, and the accentuated element is a section of the line drawing of the fluid path corresponding to a location in the fluid path where the fault is located.

7. A method as in claim 1 further comprising displaying a text message regarding the fault adjacent the pictorial diagram.

8. A method as in claim 1 further comprising displaying a text message of a procedure to cure the fault and said text message is displayed adjacent the pictorial diagram.

9. A method as in claim 1 wherein the pictorial diagram includes a first view of the fluid path and a second view of the fluid path, and further comprising selecting the first view or second view to be displayed in step (c) depending on the detected fault.

10. A method as in claim 1 wherein the pictorial diagram includes a front view of the fluid path and a side view of the fluid path, and further comprising selecting the front view or side view to be displayed in step (c) depending on the detected fault.

11. A method as in claim 1 further comprising monitoring sensors coupled to the device to detect the fault in the fluid path.

12. A method as in claim 1 further comprising sensing a pressure in the fluid path and detecting a fault in the fluid path if the sensed pressure varies from a predetermined level of pressure.

13. A method as in claim 1 further comprising optically sensing the blood through the path to detect bubble faults in the fluid path.

14. A method as in claim 1 further comprising the step of displaying a pictorial diagram of a pump adjacent the diagram of the fluid path, and rotating the diagram of the pump while blood flows through the fluid path.

15. A method as in claim 1 wherein the fluid path includes a filtrate path extending from a blood filter and accentuating the filtrate path of the pictorial diagram when a fault is detected in the filtrate path.

16. A graphical user interface for a device for treatment of blood comprising:

a controller for the device generating a pictogram to be displayed;

the pictogram on the display shows alternatively a side view and a front view of the device depending on the location of an element of the fluid path that requires user attention.

17. A graphical user interface as in claim 16 wherein the pictogram flashes in alternating colors designating a location of a bloodline where the leakage of blood was detected by analysis of pressure.

18. A graphical user interface as in claim 16 wherein the pictogram flashes in alternating colors at a location of a bloodline where an occlusion of blood path is detected.

19. A graphical user interface as in claim 16 wherein the pictogram flashes in alternating colors a location of a bloodline where leakage of blood is detected.

20. A graphical user interface as in claim 16 wherein the pictogram flashes in alternating colors a location of a bloodline where a leakage of blood is detected by analysis by the controller of pressure between the patient blood withdrawal catheter and blood filter.

21. A graphical user interface as in claim 16 wherein the pictogram flashes in alternating colors a location of the bloodline where a leakage of blood was detected by analysis by the controller of pressure between a patient blood withdrawal catheter and a blood filter.

22. A graphical user interface as in claim 16 wherein the pictogram flashes in alternating colors to designate a location of a bloodline where an occlusion of a blood path is analyzed by the controller of pressure between a patient blood withdrawal catheter and a blood filter.

23. A graphical user interface as in claim 16 wherein the pictogram flashes in alternating color a location of the bloodline where an occlusion of bloodline is detected by analysis by the controller of pressure between a blood filter and a patient blood withdrawal catheter.

24. A graphical user interface as in claim 16 wherein the pictogram flashes a symbol of a blood roller pump when a pump jam is detected by the controller analyzing electric current through a pump motor of the device.

25. A graphical user interface as in claim 16 wherein the pictogram flashes a symbol of a blood roller pump if occlusion of the blood filter is detected by the controller analyzing electric current through a pump motor of the device.

26. A graphical user interface as in claim 16 wherein the device is an ultrafiltration device.

27. A method for detecting a connection of an external sensor to a device having a controller electrically connected to a sensor coupling, said method comprising:

a. applying a voltage potential to a pull-up resistor electrically in the device and connected to the sensor coupling;

b. determining that the sensor is connected to the device if the applied voltage drops below a predetermined level, and

c. determining that the sensor is not connected if the applied voltage level remains above the predetermined level.