Management of parameters relating to a dialysis treatment

• US 5,276,611 A
• Filed: 03/15/1991
• Issued: 01/04/1994
• Est. Priority Date: 05/31/1989
• Status: Expired due to Term

• Current Assignee: Gambro Hospal Schweiz AG
• Original Assignee: Hospal AG
• Inventors: Ghiraldi, Andrea
• Primary Examiner(s): Envall, Jr., Roy N.
• Assistant Examiner(s): Tkacs, Stephen R.
• Application Number:
  US07/646,595
• Time in Patent Office: 1,026 Days
• Field of Search: 364/413.01, 364/413.02, 364/413.03, 364/413.04, 364/413.05, 364/413.06, 364/413.07, 364/413.08, 364/413.09, 364/413.10, 364/413.1 1, 128/670, 128/671
• US Class Current: 210/739
• CPC Class Codes: A61M 1/16 with membranes
• CPC Class Codes: A61M 2205/52 with memories providing a history of measured variating parameters of apparatus or patient
• CPC Class Codes: C07C 237/06 having the nitrogen atoms of the carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
• CPC Class Codes: C07C 323/63 the carbon skeleton being further substituted by nitrogen atoms, not being part of nitro or nitroso groups
• CPC Class Codes: C07D 213/30 Oxygen atoms
• CPC Class Codes: C07D 307/58 One oxygen atom, e.g. butenolide
• CPC Class Codes: C07D 333/32 Oxygen atoms
• 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

Abstract

The method for the management of parameters relating to a dialysis treatment lies in proceeding at least with the following operations in a dialysis machine during a dialysis treatment:

a) selecting a plurality of parameters relating to the dialysis treatment;

b) establishing a plurality of operating conditions regarding the functioning of the the dialysis machine in relation to the progress of the treatment with respect to time and/or to the course of the values of the said parameters in relation to predetermined variation ranges of these parameters;

c) memorizing the values assumed at that moment by a certain number of the said parameters in accordance with the establishment of each one of the operating conditions.

Using this method and the device for its implementation, it is possible to select and memorize a reduced number of significant parameters relating to the progress of a dialysis session with a view to their transmission over a distance.

Claims

1. A method for monitoring a medical treatment, using a control device at a location remote from a place of the medical treatment, the method comprising the steps of:

monitoring a plurality of parameters of the medical treatment at the treatment place;

selecting at least one of said plurality of parameters;

applying a rule of memorization, at the treatment place, to data of the selected parameter to segregate from the data a subset of data to be stored;

storing, at the treatment place, only the data subset; and

transferring the data subset to the control device at said location remote from the treatment place.

2. The method of claim 1 wherein the transferring step includes transferring the data subset over a telephone line.

3. The method of claim 1 further comprising the step of defining a rule of memorization prior to applying the rule of memorization.

4. The method of claim 3 wherein the step of defining a rule of memorization includes defining a range of values for the selected parameter so that when data for the selected parameter are within said range then the data within the range are stored.

5. The method of claim 4 wherein the step of defining a rule of memorization further comprises defining the rule to include discarding data of a selected parameter whenever data for the selected parameter are outside of said range.

6. The method of claim 3 wherein the step of defining a rule of memorization includes defining a range of values for the selected parameter so that when data for the selected parameter are outside of said range then the data outside of said range are stored.

7. The method of claim 6 wherein the step of defining a rule of memorization further comprises defining the rule to include discarding data of a selected parameter whenever data for the selected parameter are within said range.

8. The method of claim 3 wherein the step of defining a rule of memorization further includes defining an increment of time, so that data for the selected parameter are stored at time intervals of said time increment.

9. The method of claim 1 wherein the step of selecting a parameter includes selecting a parameter corresponding to an ultrafiltrate flow rate.

10. The method of claim 1 wherein the medical treatment comprises circulating a dialysis liquid through a filter, and the plurality of parameters includes parameters defining characteristics of the dialysis liquid.

11. An apparatus for monitoring a medical treatment, using a control device at a location remote from a place of the medical treatment, the apparatus comprising:

parameter processing means for monitoring data of a plurality of parameters of the medical treatment, the parameter processing means for placement at the treatment place;

central processing means for selecting at least one of said plurality of parameters and for applying a rule of memorization to data of the selected parameter to segregate from the data a subset of data to be stored, the central processing means for placement at the treatment place;

at least one memory unit, for placement at the treatment place, the memory unit for storing only the data subset; and

means for transferring the data subset to the control device at said location remote from the treatment place.