Methods for kidney dialysis

• US 7,264,730 B2
• Filed: 06/13/2003
• Issued: 09/04/2007
• Est. Priority Date: 04/19/1991
• Status: Expired due to Fees

• Current Assignee: Baxter International Inc.
• Original Assignee: Baxter International Inc.
• Inventors: Hogard, Michael E., Kelly, Thomas D., Elsen, Raymond, Smejtek, Dalibor J., Connell, Mark E., Johnson, Harley D., Preston, William G. Jr., Bedient, Robert A., Peterson, Bruce A., Long, Jean McEvoy
• Primary Examiner(s): DRODGE, JOSEPH W
• Application Number:
  US10/461,237
• Publication Number:
  US 20030222022A1
• Time in Patent Office: 1,544 Days
• Field of Search: 210/85, 210/87, 210/90, 210/96.2, 210/321.65, 210/321.69, 210/321.72, 210/636, 210/646, 210/647, 210/739, 210/745, 210/929, 210/138, 210/143, 604/4.01, 604/5.01, 604/6.01, 604/6.09, 345/173, 345/156, 345/530, 700/273, 705/2, 705/3
• US Class Current: 210/646
• CPC Class Codes: A61M 1/16 with membranes
• CPC Class Codes: A61M 1/1607 before use, i.e. upstream of dialyser
• CPC Class Codes: A61M 1/1613 Profiling or modelling of patient or predicted treatment evolution or outcome
• CPC Class Codes: A61M 1/165 with a dialyser bypass on the dialysis fluid line
• CPC Class Codes: A61M 1/1656 Apparatus for preparing dialysates
• CPC Class Codes: A61M 1/1664 with temperature control
• CPC Class Codes: A61M 1/1666 by dissolving solids
• CPC Class Codes: A61M 1/168 Sterilisation or cleaning before or after use
• CPC Class Codes: A61M 1/1684 Checking the module characteristics before reuse
• CPC Class Codes: A61M 1/1686 by heat
• CPC Class Codes: A61M 1/1688 with recirculation of the sterilising fluid
• CPC Class Codes: A61M 1/169 using chemical substances
• CPC Class Codes: A61M 1/1692 Detection of blood traces in dialysate
• CPC Class Codes: A61M 1/1694 with recirculating dialysing liquid
• CPC Class Codes: A61M 1/341 by measuring the filtrate rate or volume
• CPC Class Codes: A61M 1/3626 Gas bubble detectors
• CPC Class Codes: A61M 2039/1005 Detection of disconnection
• CPC Class Codes: A61M 2205/3313 used specific wavelengths
• CPC Class Codes: A61M 2205/3317 Electromagnetic, inductive or dielectric measuring means
• CPC Class Codes: A61M 2205/3324 PH measuring means
• CPC Class Codes: A61M 2205/3334 : Measuring or controlling the flow rate
• CPC Class Codes: A61M 2205/3368 : Temperature
• CPC Class Codes: A61M 2205/505 : Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
• CPC Class Codes: A61M 2205/52 : with memories providing a history of measured variating parameters of apparatus or patient
• CPC Class Codes: G06F 3/0482 : Interaction with lists of selectable items, e.g. menus
• CPC Class Codes: G06F 3/04847 : Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
• 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: Y10S 210/929 : Hemoultrafiltrate volume measurement or control processes

Abstract

A number of improvements relating to methods and apparatuses for kidney dialysis are disclosed. These include methods such as supplying a dialysis machine including a touch screen interface to a machine user and supplying to the machine user accessory devices to be used with the dialysis machine in operation.

Claims

1. A hemodialysis machine comprising:

at least one dialysate pump configured to move dialysate to a dialyzer;

a blood pump operable to move blood to the dialyzer;

a user/machine interface including

(a) individually selectable digits zero through nine, and

(b) a video screen; and

at least one processor, the processor and user/machine interface configured to

(i) enable a cumulative ultrafiltration value to be entered via selection from the digits,

(ii) enable a total time to be entered via selection from the digits, and

(iii) enable a plurality of ultrafiltration values as steps over time forming a profile to be entered after entry of the cumulative ultrafiltration value and the total time;

(iv) display a shape of the entered profile on the video screen; and

(v) cause the entered cumulative ultrafiltration value to be removed via the dialyzer, within or over the entered total time, according to the entered profile.

2. The hemodialysis machine of claim 1, wherein the video screen is configured to display indicia corresponding to the ultrafiltration profile, the indicia selectable to enable the profile to be entered.

3. The hemodialysis machine of claim 2, wherein the display of the shape of the entered profile occurs as the plurality of ultrafiltration values are entered.

4. The hemodialysis machine of claim 1, wherein the total time is enterable via a single selection from the digits and the cumulative ultrafiltration value is enterable via a single selection from the digits.

5. The hemodialysis machine of claim 1, which includes an enclosure for the dialysate and blood pumps, the video screen mounted directly onto the enclosure.

6. The hemodialysis machine of claim 1, wherein the profile is entered while the video screen displays an ultrafiltration profile screen, which is different than a screen in which the cumulative ultrafiltration value and total time are entered.

7. The hemodialysis machine of claim 1, wherein the cumulative ultrafiltration value is a total volumetric fluid loss per the total time.

8. The hemodialysis machine of claim 1, wherein the total time is a total treatment time.

9. The hemodialysis machine of claim 1, wherein the video screen is configured to display each of the entered total time, entered cumulative ultrafiltration value and entered ultrafiltration profile.

10. A method of operating a dialysis machine including at least one dialysate pump configured to move dialysate to a dialyzer, a blood pump operable to move blood to the dialyzer, a video screen and at least one processor, the method comprising:

enabling a cumulative ultrafiltration value to be entered;

enabling a total time to be entered;

enabling a plurality of ultrafiltration values as steps over time forming a profile to be entered after entering the cumulative ultrafiltration value and the total time;

displaying a shape of the entered profile on the video screen; and

after entry of the total time, cumulative ultrafiltration value and ultrafiltration profile, enabling the entered cumulative ultrafiltration value to be removed via the dialyzer, within or over the entered total time, according to the entered ultrafiltration profile.

11. The method of claim 10, which includes displaying each of the entered total time, entered cumulative ultrafiltration value and entered ultrafiltration profile on the video screen.

12. The method of claim 10, wherein displaying the shape of the entered profile occurs as the plurality of ultrafiltration values are entered.

13. The method of claim 10, which includes enabling at least one of the total time and cumulative ultrafiltration value to be entered digitally.

14. The method of claim 10, wherein entering the cumulative ultrafiltration value includes entering a total volumetric fluid loss per the total time.

15. The method of claim 10, wherein entering the total time includes entering a total treatment time.