Control of Body Fluid Condition Using Diuretics, Based on Weight Measurement

• US 20090062728A1
• Filed: 08/29/2008
• Published: 03/05/2009
• Est. Priority Date: 09/01/2007
• Status: Abandoned Application

• Current Assignee: Sang Hoon Woo
• Original Assignee: Sang Hoon Woo
• Inventors: Woo, Sang Hoon
• Application Number:
  US12/202,068
• Publication Number:
  US 20090062728A1
• Time in Patent Office: Days
• US Class Current: 604/66
• CPC Class Codes: A61M 2202/0496 Urine
• CPC Class Codes: A61M 2205/05 combined with other kinds of therapy
• CPC Class Codes: A61M 2205/3569 sublocal, e.g. between console and disposable
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: A61M 5/14276 specially adapted for implantation
• CPC Class Codes: A61M 5/16827 controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths infusion of multiple fluids without using a controller A61M5/1407
• CPC Class Codes: A61M 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00

Abstract

The system for controlling body fluids overcomes the limitations of the prior art by automatically infusing diuretic and/or other drugs into a human patient. In one approach, the rate of infusion of the diuretic is adjusted based on the measured weight of the patient. For example, this weight can be transmitted wirelessly to a portable diuretic infusion device attached to the patient.

Claims

1. A portable diuretic infusion device comprising:

a reservoir for holding diuretic;

a pump connected to the reservoir and connectable to a human patient, for infusing diuretic from the reservoir into the patient; and

a controller that controls the pump based on a measured weight of the patient, thereby controlling a rate of infusion of the diuretic based on the measured weight of the patient.

2. The device of claim 1 further comprising:

a wireless receiver coupled to the controller, for wirelessly receiving weight information about the patient.

3. The device of claim 1 further comprising:

a user interface that allows a user to input weight information about the patient.

4. The device of claim 1 wherein the controller adjusts the rate of infusion based on a measured weight of the patient to maintain a target weight for the patient.

5. The device of claim 1 further comprising:

a second reservoir for holding a second medication, the pump further for infusing the second medication from the reservoir into the patient.

6. The device of claim 1 further comprising:

a second reservoir for holding a second medication; and

a second pump connected to the second reservoir and connectable to the patient, for infusing the second medication from the second reservoir into the patient.

7. The device of claim 1 wherein the controller adjusts the rate of infusion additionally based on a measured pressure within a cardiac chamber of the patient.

8. The device of claim 1 wherein the controller adjusts the rate of infusion additionally based on a measured pressure within a blood vessel of the patient.

9. The device of claim 1 wherein the controller adjusts the rate of infusion additionally based on a measured pressure within a cardiac chamber and/or a blood vessel of the patient to maintain a target pressure in the cardiac chamber and/or blood vessel.

10. The device of claim 1 wherein the controller adjusts the rate of infusion additionally based on a measured biomarker.

11. The device of claim 10 wherein the biomarker is one of an atrial natriuretic peptide, a brain natriuretic peptide, and a NT-pro brain natriuretic peptide.

12. The device of claim 1 wherein the controller adjusts the rate of infusion additionally based on the amount of salt, sodium and/or water content of food.

13. The device of claim 1 wherein the controller adjusts the rate of infusion additionally based on blood pressure measured non-invasively.

14. The device of claim 1 wherein the controller adjusts the rate of infusion additionally based on intrathoracic electrical impedance.

15. The device of claim 1 wherein the controller stops infusion if measured weight is not input after a predetermined period of time.

16. The device of claim 1 wherein the portable diuretic infusion device is disposable.

17. A diuretic infusion system comprising:

a weight measurement apparatus comprising;

a weight sensor for measuring a body weight of a human patient; and

a wireless transmitter for wirelessly transmitting weight information based on the measured body weight; and

a portable diuretic infusion device comprising;

a reservoir for holding diuretic;

a pump connected to the reservoir and connectable to the patient, for infusing diuretic from the reservoir into the patient;

a wireless receiver for wirelessly receiving the weight information transmitted from the weight measurement apparatus; and

a controller coupled to the wireless receiver, for controlling the pump and rate of infusion of the diuretic based on the received weight information.

18. A weight measurement apparatus comprising:

a weight sensor for measuring a body weight of a human patient; and

a processor coupled to the weight sensor, for calculating a dose of diuretic based on the measured weight; and

a display coupled to the processor, for displaying the calculated dose.

19. A diuretic infusion system comprising:

a weight measurement apparatus comprising;

a weight sensor for measuring a body weight of a human patient; and

a wireless transmitter for wirelessly transmitting weight information based on the measured body weight; and

a portable diuretic infusion device comprising;

a reservoir for holding diuretic;

a pump connected to the reservoir and connectable to the patient for infusing diuretic from the reservoir into the patient;

a controller that controls the pump, thereby controlling a rate of infusion of the diuretic; and

a wireless receiver for wirelessly receiving one or more commands; and

a remote control device comprising;

a wireless receiver for wirelessly receiving the weight information transmitted from the weight measurement apparatus;

a wireless transmitter for wirelessly transmitting one or more commands to the portable diuretic infusion device; and

a controller coupled to the wireless receiver and transmitter for wirelessly controlling the pump and rate of infusion of the diuretic based on the received weight information.

20. A diuretic infusion system comprising:

a weight measurement apparatus comprising;

a weight sensor for measuring a body weight of a human patient; and

a diuretic infusion device comprising;

a reservoir for holding diuretic;

a pump connected to the reservoir and connectable to the patient for infusing diuretic from the reservoir into the patient; and

a controller that controls the pump based on the measured body weight, thereby controlling a rate of infusion of the diuretic based on the measured body weight.

21. The device of claim 20 wherein the pump is a portable pump.

22. The device of claim 20 wherein the pump is a non-portable pump.

23. The device of claim 20 wherein the pump is an ambulatory drug infusion pump.

24. The device of claim 20 wherein the pump is an implantable drug infusion pump.