Monitoring platform for detection of hypovolemia, hemorrhage and blood loss

• US 20060058593A1
• Filed: 09/02/2005
• Published: 03/16/2006
• Est. Priority Date: 09/02/2004
• Status: Abandoned Application

• Current Assignee: PhiloMetron Inc.
• Original Assignee: PhiloMetron Inc.
• Inventors: Drinan, Darrel D., Edman, Carl F.
• Application Number:
  US11/219,327
• Publication Number:
  US 20060058593A1
• Time in Patent Office: Days
• US Class Current: 600/301
• CPC Class Codes: A61B 2560/0412 Low-profile patch shaped housings
• CPC Class Codes: A61B 2562/08 Sensors provided with means for identification, e.g. barcodes or memory chips
• CPC Class Codes: A61B 2562/164 the sensor is mounted in or on a conformable substrate or carrier
• CPC Class Codes: A61B 5/0022 Monitoring a patient using a global network, e.g. telephone networks, internet
• CPC Class Codes: A61B 5/0531 Measuring skin impedance
• CPC Class Codes: A61B 5/0537 Measuring body composition by impedance, e.g. tissue hydration or fat content
• CPC Class Codes: A61B 5/441 Skin evaluation, e.g. for skin disorder diagnosis
• CPC Class Codes: A61B 5/445 Evaluating skin irritation or skin trauma, e.g. rash, eczema, wound, bed sore
• CPC Class Codes: A61B 5/447 specially adapted for aiding the prevention of ulcer or pressure sore development, i.e. before the ulcer or sore has developed
• CPC Class Codes: A61B 5/6804 Garments; Clothes
• CPC Class Codes: A61B 5/6807 Footwear
• CPC Class Codes: A61B 5/6831 Straps, bands or harnesses
• CPC Class Codes: A61B 5/685 Microneedles
• CPC Class Codes: Y02A 90/10 Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation

Abstract

Systems and techniques are provided for monitoring hydration. In one implementation, a method includes measuring an electrical impedance of a region of a subject to generate an impedance measurement result. The result may be correlated with a blood loss condition.

Claims

1. A method of detecting and/or monitoring hypovolemia, hemorrhage or blood loss of a subject, said method comprising making impedance measurements of at least a portion of said subject while said subject is injured.

2. The method of claim 1, comprising connecting two or more electrodes to said subject.

3. The method of claim 2, wherein connecting the two or more electrodes comprises connecting a patch or strap probe to the subject.

4. The method of claim 2, wherein connecting the two or more electrodes to the subject comprises wearing an article of clothing to which said electrodes are attached.

5. The method of claim 1, further comprising:

making said impedance measurements at two or more points in time; and

determining whether the subject is externally bleeding based on a change in measured impedance.

6. The method of claim 1, further comprising:

making said impedance measurements at two or more points in time; and

determining whether the subject is internally bleeding based on a change in measured impedance.

7. The method of claim 6, additionally comprising diagnosing an internal bleeding condition based on said change in measured impedance.

8. The method of claim 1, additionally comprising infusing said subject with fluid so as to rehydrate said subject until said impedance measurements reach a predetermined state.

9. The method of claim 1, further comprising providing an indication of the blood loss condition to at least one of the subject, medical personnel, and a remote location.

10. The method of claim 1, further comprising wirelessly communicating the blood loss condition to a remote apparatus.

11. The method of claim 1, further comprising remotely analyzing the data.

12. The method of claim 1, further comprising sensing at least one of temperature, vasodilation and blood pressure.

13. A method of monitoring a hydration condition of an injured subject, comprising:

monitoring a bioelectric impedance of at least a region of the injured subject;

generating data related to the hydration condition of the subject; and

communicating the hydration condition to medical personnel attending the subject.

14. The method of claim 13, further comprising determining whether the subject is at least one of dehydrated, hyperhydrated, and hypervolemic.

15. The method of claim 13, further comprising wirelessly communicating at least one of the data and the hydration condition to a remote apparatus.

16. The method of claim 15, further comprising remotely analyzing the data.

17. The method of claim 13, further comprising sensing at least one of temperature, heat flux, vasodilation and blood pressure.