Temperature control case

• US 8,061,149 B1
• Filed: 08/01/2008
• Issued: 11/22/2011
• Est. Priority Date: 02/02/2007
• Status: Expired due to Fees

• Current Assignee: Case In Point LLC
• Original Assignee: Case In Point LLC
• Inventors: Gowans, Andrew Ross, Orfanakis, Mike George, Clark, Ryan Derek, Speirs, Brent Kelvin
• Primary Examiner(s): Jones; Melvin
• Application Number:
  US12/184,883
• Time in Patent Office: 1,208 Days
• Field of Search: 62/36.2, 62/37, 623/71, 623/72, 624/572
• US Class Current: 62/3.62
• CPC Class Codes: A61J 1/165 Cooled holders, e.g. for medications, insulin, blood, plasma
• CPC Class Codes: F25B 21/02 using Peltier effect; using Nernst-Ettinghausen effect
• CPC Class Codes: F25D 2331/8014 for medical use
• CPC Class Codes: F25D 2400/12 Portable refrigerators
• CPC Class Codes: F25D 2700/12 Sensors measuring the inside temperature
• CPC Class Codes: F25D 2700/14 Sensors measuring the temperature outside the refrigerator or freezer

Abstract

Embodiments of a temperature control case and related methods and systems are disclosed. Some embodiments may be particularly useful for portable storage of temperature-sensitive pharmaceutical substances and the like. Embodiments are also disclosed which are configured specifically for cooling intravenous fluids to be used for therapeutic hypothermia. Some embodiments may include multiple storage compartments each being configured to store substances at a different temperature so that intravenous fluids can be stored in one compartment and other substances in another compartment. Some embodiments include both internal and external temperature sensors to allow the device to predict internal temperature changes and adjust heating/cooling elements accordingly before the internal temperature is unduly impacted by the ambient temperature, thereby increasing the efficiency and efficacy of the temperature control system.

Claims

1. A portable temperature-controlled case, comprising:

an internal storage compartment configured to receive and store an intravenous solution;

a cooling element configured to lower an internal temperature within at least a portion of the internal storage compartment; and

an internal temperature sensor configured to sense an internal temperature within at least a portion of the internal storage compartment;

wherein the cooling element is configured to maintain the internal temperature within at least a portion of the internal storage compartment at between 28 and 40 degrees Fahrenheit such that the intravenous solution can be used for therapeutic hypothermia treatment.

2. The temperature-controlled case of claim 1, wherein the cooling element is configured to maintain the internal temperature within at least a portion of the internal storage compartment at between 31 and 40 degrees Fahrenheit.

3. The temperature-controlled case of claim 2, wherein the cooling element is configured to maintain the internal temperature within at least a portion of the internal storage compartment at between 32 and 35 degrees Fahrenheit.

4. The temperature-controlled case of claim 1, further comprising a second internal storage compartment configured to receive and store one or more substances at a different temperature than the internal storage compartment.

5. The temperature-controlled case of claim 4, further comprising an external temperature sensor configured to sense an external temperature outside of the case.

6. The temperature-controlled case of claim 4, further comprising a second internal temperature sensor configured to sense an internal temperature within at least a portion of the second internal storage compartment.

7. The temperature-controlled case of claim 6, further comprising a temperature control unit configured to receive temperature data from the external temperature sensor and at least one of the internal temperature sensors to control operation of the cooling element so as to selectively adjust an internal temperature within at least a portion of at least one of the internal storage compartments.

8. The temperature-controlled case of claim 7, further comprising a heating element, wherein the temperature control unit is further configured to control operation of the heating element so as to selectively adjust an internal temperature within at least a portion of at least one of the internal storage compartments.

9. The temperature-controlled case of claim 1, further comprising a battery configured to provide power for operation of the temperature-controlled case.

10. The temperature-controlled case of claim 9, further comprising an electrical connector configured to be coupled with an external power source, wherein the temperature-controlled case is configured to automatically switch power for operation of the temperature-controlled case from the battery to the external power source upon detecting that the external power source has been coupled with the electrical connector, and wherein the temperature-controlled case is configured to use the external power source to recharge the battery while the external power source is coupled with the electrical connector.

11. The temperature-controlled case of claim 1, further comprising an external temperature sensor configured to sense an external temperature outside of the case.

12. The temperature-controlled case of claim 11, further comprising a temperature control unit configured to receive temperature data from the external and internal temperature sensors to control operation of the cooling element so as to selectively adjust an internal temperature within at least a portion of the internal storage compartment.

13. The temperature-controlled case of claim 12, wherein the temperature control unit is configured with a plurality of operation modes, and wherein the operation of the temperature control unit in at least one of the operation modes depends upon the external temperature sensed by the external temperature sensor.

14. The temperature-controlled case of claim 13, wherein at least one of the operation modes comprises a plurality of operation profiles, and wherein each of the operation profiles is configured to operate the cooling element at a different one of a plurality of duty cycles.

15. The temperature-controlled case of claim 1, further comprising a pressure infusion component for providing pressure infusion of the intravenous solution.

16. A portable temperature-controlled case, comprising:

an internal storage compartment configured to receive and store an intravenous solution;

a cooling element configured to lower an internal temperature within at least a portion of the internal storage compartment;

an internal temperature sensor configured to sense an internal temperature within at least a portion of the internal storage compartment;

an ambient temperature sensor configured to sense an external temperature outside of the case;

a temperature control unit configured to receive temperature data from the internal and ambient temperature sensors and control operation of the cooling element so as to adjust an internal temperature within at least a portion of the internal storage compartment wherein the temperature control element is configured to maintain the internal temperature within at least a portion of the internal storage compartment at a target temperature range, the target temperature range being between 28 and 40 degrees Fahrenheit such that the intravenous solution can be used for therapeutic hypothermia treatment; and

a battery configured to provide power for operation of the temperature-controlled case.

17. The portable temperature-controlled case of claim 16, wherein the temperature control unit is configured to alter an operation mode of the cooling unit when the internal temperature sensed by the internal temperature sensor varies from the target temperature range by at least a first amount, and wherein the temperature control unit is configured to alter an operation mode of the cooling unit when the external temperature sensed by the ambient temperature sensor varies from the target temperature range by at least a second amount.

18. The temperature-controlled case of claim 16, wherein the target temperature range is between 31 and 40 degrees Fahrenheit.

19. The temperature-controlled case of claim 18, wherein the target temperature range is between 32 and 35 degrees Fahrenheit.

20. The temperature-controlled case of claim 16, further comprising a second internal storage compartment configured to receive and store one or more substances at a different temperature than the internal storage compartment.

21. A portable temperature-controlled case, comprising:

a base;

a lid configured to enclose the base, wherein at least one of the lid and the base at least partially defines a first internal storage compartment, and wherein at least one of the lid and the base at least partially defines a second internal storage compartment, wherein the second internal storage compartment is configured to receive and store an intravenous solution;

a first cooling element configured to lower an internal temperature within at least a portion of the first internal storage compartment, wherein the first cooling element is configured to operate at a plurality of duty cycles;

a heating element configured to raise an internal temperature within at least a portion of the first internal storage compartment, wherein the heating element is configured to operate at a plurality of duty cycles;

a second cooling element, wherein the second cooling element is configured to maintain the internal temperature within at least a portion of the second internal storage compartment at between 28 and 40 degrees Fahrenheit such that the intravenous solution can be used for therapeutic hypothermia treatment;

a first internal temperature sensor configured to sense an internal temperature within at least a portion of the first internal storage compartment;

a second internal temperature sensor configured to sense an internal temperature within at least a portion of the second internal storage compartment;

an ambient temperature sensor configured to sense an external temperature outside of the case;

a user interface configured to allow a user to select a desired target temperature for at least a portion of the first internal storage compartment;

a temperature control unit configured to receive temperature data from the ambient temperature sensor and at least one of the internal temperature sensors and control operation of the cooling and heating elements so as to adjust an internal temperature within at least a portion of at least one of the internal storage compartments, the temperature control unit comprising;

a change temperature mode, wherein the temperature control unit is configured to enter the change temperature mode when the internal temperature sensed by the first internal temperature sensor differs from the target temperature selected by the user by at least a first amount, wherein the change temperature mode comprises a plurality of operation profiles, each of the operation profiles being configured to operate at least one of the first cooling element and the heating element at a different duty cycle, and wherein the temperature control unit is configured to select an operation profile in the change temperature mode based upon the temperature difference between the target temperature selected by the user and the internal temperature sensed by the first internal temperature sensor; and

a sustain temperature mode, wherein the temperature control unit is configured to enter the sustain temperature mode when the external temperature sensed by the ambient temperature sensor differs from at least one of the internal temperature sensed by the first internal temperature sensor and the target temperature selected by the user by at least a second amount but the internal temperature sensed by the first internal temperature sensor does not exceed the target temperature selected by the user by at least the first amount, wherein the sustain temperature mode comprises a plurality of operation profiles, wherein each of the operation profiles is configured to operate at least one of the first cooling element and the heating element at a different duty cycle, and wherein the temperature control unit is configured to select an operation profile in the sustain temperature mode based upon the temperature difference between the external temperature sensed by the ambient temperature sensor and at least one of the target temperature selected by the user and the internal temperature sensed by the first internal temperature sensor; and

a battery configured to provide portable power for operation of the temperature-controlled case.