Warming therapy patient care units with automated weaning modes

Patent metadata

Field	Value
Publication number	US-10350125-B2
Application number	US-201114352996-A
Country	US
Kind code	B2
Filing date	Dec 13, 2011
Priority date	Oct 21, 2011
Publication date	Jul 16, 2019
Grant date	Jul 16, 2019

Abstract

A system includes a patient support unit having an enclosed patient environment, a heating module, a skin temperature sensor module, an environmental sensor module, and a control system. The control system is configured to selectively operate the system in a pre-programmed weaning mode configured to gradually wean the patient from the warmed patient environment series of stepped air temperature decreases performed over a series of stepped time durations achieves a goal air temperature while maintaining a goal skin temperature within a weaning abort deviation.

First claim

What is claimed is:

1. A system, comprising:
a patient support unit having an enclosed patient environment;
a heating module comprising a heater and a heating module controller operatively coupled to the heater, wherein the heater is configured to warm the patient environment;
a skin temperature sensor module comprising a skin temperature sensor and a skin temperature controller operatively coupled to the skin temperature sensor and to the heater, wherein the skin temperature sensor is configured to measure a skin temperature of a patient in the patient environment;
an environmental sensor module comprising an air temperature sensor and an air temperature controller operatively coupled to the air temperature sensor and to the heater, wherein the air temperature sensor is configured to measure an air temperature in the patient environment; and
a control system comprising at least one processor, at least one memory coupled to the at least one processor and including at least one program stored thereon, and at least one input interface, wherein the control system is configured to selectively automatically operate the system without human intervention in a preprogrammed weaning mode configured to gradually wean the patient from the warmed patient environment according to a series of stepped air temperature decreases performed over a series of stepped time durations to achieve a goal air temperature while maintaining a goal skin temperature within a weaning abort deviation, wherein, upon achieving the goal air temperature and wherein the skin temperature of the patient is equal to or greater than the goal skin temperature less the weaning abort deviation, the preprogrammed weaning mode ends and a notification is provided to a user.

2. The system of claim 1 , wherein the heating module controller is regulated by the control system to limit heating energy from the heater to achieve an air temperature set-point within one in the series of stepped time durations, wherein the air temperature set-point equals the air temperature of the patient environment measured at a start of one in the series of stepped time durations plus one in the series of stepped temperature decreases.

3. The system of claim 1 , wherein the goal air temperature is between about 20° C. to about 39° C.

4. The system of claim 1 , wherein the goal skin temperature is between about 34° C. to 38° C.

5. The system of claim 1 , wherein each in the series of stepped air temperature decreases is between about 0.2° C. to 1.0° C.

6. The system of claim 1 , wherein each in the series of stepped time durations is at least about 1, 2, 4, 8, 12, 18, or 24 hours.

7. The system of claim 1 , wherein the weaning abort deviation is between about 0.3° C. to 1.0° C.

8. The system of claim 1 , wherein the environmental sensor module further comprises one or more oxygen sensors.

9. The system of claim 8 , wherein the one or more oxygen sensors are coupled to a servo oxygen controller operationally coupled to an oxygen valve configured to deliver controlled amounts of oxygen to the patient environment.

10. The system of claim 1 , wherein the environmental sensor module further comprises one or more humidity sensors.

11. The system of claim 10 , wherein the one or more humidity sensors are coupled to a humidity heater and a humidity controller configured to control the humidity heater to regulate moisture content in the patient environment.

12. The system of claim 1 , wherein the heater comprises one or more of a main air heater, a mattress heater, a radiant heater, or a humidity heater.

13. The system of claim 1 , wherein the enclosed patient environment has a shape and size to accomodate a premature or full-term newborn baby.

14. A method, comprising:
supporting a patient in a patient environment of an incubator, wherein the incubator comprises:
a heating module comprising a heater and a heating module controller operatively coupled to the heater, wherein the heater is configured to warm the patient environment;
a skin temperature sensor module comprising a skin temperature sensor and a skin temperature controller operatively coupled to the skin temperature sensor and to the heater, wherein the skin temperature sensor is configured to measure a skin temperature of the patient in the patient environment;
an environmental temperature sensor module comprising an air temperature sensor and an air temperature controller operatively coupled to the air temperature sensor and to the heater, wherein the air temperature sensor is configured to measure an air temperature in the patient environment; and
a control system comprising at least one display, at least one processor, at least one memory coupled to the at least one processor and including at least one program stored thereon, and at least one input interface;
receiving a command by the control system to perform a pre-programmed weaning mode protocol configured to gradually wean the patient from the warmed patient environment according to a series of stepped air temperature decreases performed over a series of stepped time durations to achieve a goal air temperature while maintaining a goal skin temperature within a weaning abort deviation; and
upon achieving the goal air temperature and wherein the skin temperature of the patient measured is equal to or greater than the goal skin temperature less the weaning abort deviation, ending the preprogrammed weaning mode and providing a notification to a user.

15. The method of claim 14 , further comprising prompting the user on the display to identify one or more of the stepped air temperature decreases, the stepped time durations, the goal air temperature, the goal skin temperature, and the weaning abort deviation.

16. The method of claim 14 , further comprising automatically measuring the current skin temperature of the patient using the skin temperature sensor and continuously communicating the measured current skin temperature to the control system.

17. The method of claim 16 , further comprising automatically regulating the heater module to limit heating energy from the heater to achieve an air temperature set-point within one in the series of stepped time durations, wherein the air temperature set-point equals the air temperature of the patient environment measured at a start of one in the series of stepped time durations plus one in the series of stepped temperature decreases.

18. The method of claim 17 , further comprising comparing the skin temperature of the patient to the goal skin temperature over the step duration.

19. The method of claim 14 , wherein the goal air temperature is between about 20° C. to about 39° C.

20. The method of claim 14 , wherein the goal skin temperature is between about 34° C. to 38° C.

21. The method of claim 14 , wherein each in the series of stepped air temperature decreases is between about 0.2° C. to 1.0° C.

22. The method of claim 14 , wherein each in the series of stepped time durations is at least about 1, 2, 4, 8, 12, 18, or 24 hours.

23. The method of claim 14 , wherein the weaning abort deviation is between about 0.3° C. to 1.0° C.

24. The method of claim 14 , wherein the environmental sensor module further comprises one or more oxygen sensors.

25. The method of claim 24 , wherein the one or more oxygen sensors are coupled to a servo oxygen controller operationally coupled to an oxygen valve configured to deliver controlled amounts of oxygen

Assignees

• Timme Ulf
• Kneuer Harald
• Moehring Philip
• Draegerwerk Ag & Co Kgaa

Inventors

• Timme Ulf
• Kneuer Harald
• Moehring Philip

Classifications

• A61G2200/327

  supine · CPC title

• A61M2016/1025

  the O2 concentration · CPC title

• A61G2210/90

  for heating · CPC title

• A61F2007/0093

  programmed · CPC title

• A61M16/0003

  Accessories therefor, e.g. sensors, vibrators, negative pressure · CPC title