Water-removal control system with timer display for dialysis device

• US 5,656,153 A
• Filed: 06/06/1995
• Issued: 08/12/1997
• Est. Priority Date: 06/10/1994
• Status: Expired due to Term

• Current Assignee: Nissho Corporation (Nitto Denko Corporation)
• Original Assignee: Nissho Corporation (Nitto Denko Corporation)
• Inventors: Kawashita, Junichi, Kameno, Masahiro
• Primary Examiner(s): Drodge, Joseph W.
• Application Number:
  US08/468,039
• Time in Patent Office: 798 Days
• Field of Search: 210/85, 210/87, 210/94, 210/138, 210/646, 210/929, 364/413.02, 364/564, 364/569, 364/705.07, 368/1, 368/10, 368/89, 368/320, 368/327, 368/11, 368/223, 368/224, 604/4, 604/5, 604/6
• US Class Current: 210/97
• CPC Class Codes: A61M 1/16 with membranes
• CPC Class Codes: A61M 1/1601 Control or regulation
• CPC Class Codes: A61M 2205/52 with memories providing a history of measured variating parameters of apparatus or patient
• CPC Class Codes: Y10S 210/929 Hemoultrafiltrate volume measurement or control processes

Abstract

A water-removal control system for dialysis device includes a volume-setting device for setting a planned volume of water to be removed; a rate-setting device for setting a water-removing rate; and a time-display for calculating from the planned volume of water to be removed, set by said volume-setting device, and the water-removing rate set by said rate-setting device, and for displaying the resultant finish time of dialysis treatment. The control system is so designed as to allow the water-removing rate to be changed step by step by operating the rate-setting device during dialysis, and allow the time-display to calculate the finish time of dialysis treatment synchronously with a stepped change of the water-removing rate as well as to display the resultant finish time of dialysis treatment.

Claims

1. A dialysis device comprising means for performing dialysis treatment and a water-removal control system the control system including:

volume-setting means for setting a planned volume of water to be removed by the device;

rate-setting means for setting a water-removing rate; and

time-displaying means for calculating from the planned volume of water to be removed, set by said volume-setting means, and the water-removing rate set by said rate-setting means, and for displaying the resultant finish time of dialysis treatment;

said control system being so designed as to allow the water-removing rate to be changed step by step by operating the rate-setting means during dialysis, and allow the time-displaying means to calculate the finish time of dialysis treatment synchronously with a stepped change of the water-removing rate as well as to display the resultant finish time of dialysis treatment.

2. The water-removal control system for dialysis device according to claim 1, wherein the rate-setting means is comprised of an up and down type switch.

3. The water-removal control system for dialysis device according to claim 1, wherein the control system is so designed as to allow the planned water-removing volume to be changed step by step by operating the volume-setting means during dialysis, and to allow the time-displaying means to calculate the finish time of dialysis treatment synchronously with a stepped change of the planned water-removing volume as well as to display the resultant finish time of dialysis treatment.

4. The water-removal control system for dialysis device according to claim 3 wherein the volume-setting means is comprised of an up and down type switch.

5. The water-removal control system for dialysis device according to claim 1, wherein said control system includes displaying means for calculating and displaying a remaining time from the actual time to the finish time of dialysis treatment.