Burn Patient Resuscitation System

• US 20110230824A1
• Filed: 12/23/2010
• Published: 09/22/2011
• Est. Priority Date: 03/19/2007
• Status: Active Grant

• Current Assignee: Board of Regents of the University of Texas System (University of Texas System)
• Original Assignee: United States Govemment As Represented By The Secretary of The Navy
• Inventors: Kramer, George C., Salinas, Jose, Drew, Guy A.
• Granted Patent: US 8,157,785 B2
• Time in Patent Office: Days
• US Class Current: 604/66
• CPC Class Codes: A61B 5/20 for measuring urological functions restricted to the evaluation of the urinary system A61B5/4375 takes precedence
• CPC Class Codes: A61B 5/412 Detecting or monitoring sepsis
• CPC Class Codes: A61M 2202/0496 Urine
• CPC Class Codes: A61M 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00
• CPC Class Codes: G16H 10/60 for patient-specific data, e.g. for electronic patient records
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• CPC Class Codes: G16H 50/20 for computer-aided diagnosis, e.g. based on medical expert systems

Abstract

A method and system for operating a semi-closed loop and/or a closed loop resuscitation of a burn patient in view of patient information and other physiological data gathered as part of the method and/or by the system. The method in at least one embodiment includes receiving patient information, calculating an infusion rate based at least on part on a portion of the received patient information, outputting the infusion rate to an infusion pump, obtaining a urinary output, calculating a new infusion rate using infusion rate model based constants, and outputting the new infusion rate to an infusion pump. In some embodiments, the method includes notifying medical staff when problems arise, displaying information regarding the resuscitation, and setting limits regarding the infusion rates.

Claims

1. A system for use in resuscitating a patient comprising:

a urine sensor;

an infusion pump; and

a processor connected to said urine sensor and said infusion pump, said processor having

means for calculating an infusion rate based on at least the current infusion rate, the current urinary output, infusion rate model based constants, the patient'"'"'s weight, the percentage of total body surface area, and a Gaussian function centered on a target urinary output, and

means for controlling operation of said infusion pump based on the calculated infusion rate.

2. The system according to claim 1, wherein the infusion rate model based constants include an infusion rate constant and a urinary output constant.

3. The system according to claim 1, further comprising a display, and

said processor further includes means for driving said display and receiving information from said display of information entered by a user including an infusion rate different than the infusion rate calculated, and

said controlling means operates the infusion pump at the different infusion rate received from the user until a new infusion rate is received or calculated.

4. The system according to claim 1, further comprising a selector with at least two positions including a closed loop position and a semi-closed loop position, said selector is in communication with said processor.

5. The system according to claim 1, wherein said calculating means uses the following equation

6. The system according to claim 1, further comprising means for notifying medical staff when a problem has arisen with the patient.

7. The system according to claim 1, further comprising means for notifying medical staff when a problem has arisen with the system.