Electrical power source for an intravenous fluid heating system

• US 8,690,842 B2
• Filed: 09/07/2011
• Issued: 04/08/2014
• Est. Priority Date: 09/27/2010
• Status: Expired due to Fees

• Current Assignee: Estill Medical Technologies, Inc. (OxySure Therapeutics, Inc.)
• Original Assignee: Estill Medical Technologies, Inc. (OxySure Therapeutics, Inc.)
• Inventors: Lopez, James T.
• Primary Examiner(s): Sirmons, Kevin C
• Assistant Examiner(s): Hall, Deanna K
• Application Number:
  US13/227,326
• Publication Number:
  US 20120078178A1
• Time in Patent Office: 944 Days
• Field of Search: 604/113, 604/114, 604/291
• US Class Current: 604/291
• CPC Class Codes: A61F 2007/0078 with a battery
• CPC Class Codes: A61M 2205/3653 by Joule effect, i.e. electric resistance
• CPC Class Codes: A61M 2205/8206 battery-operated
• CPC Class Codes: A61M 2205/8262 connectable to external power source, e.g. connecting to automobile battery through the cigarette lighter
• CPC Class Codes: A61M 2205/8268 Fuel storage cells
• CPC Class Codes: A61M 5/1413 Modular systems comprising interconnecting elements
• CPC Class Codes: A61M 5/44 having means for cooling or heating the devices or media
• CPC Class Codes: F24H 1/121 using electric energy supply
• CPC Class Codes: F24H 15/37 of electric heaters
• CPC Class Codes: F24H 15/395 Information to users, e.g. alarms
• CPC Class Codes: F24H 15/45 remotely accessible
• CPC Class Codes: F24H 9/2014 using electrical energy supply
• CPC Class Codes: H05B 1/025 For medical applications
• CPC Class Codes: H05B 2203/021 Heaters specially adapted for heating liquids

Abstract

An apparatus heats fluids. A number of lithium-ion cells are positioned within a housing. A first connector is positioned on a first end of the housing and operably connected to the number of lithium-ion cells. The first connector is configured to receive electrical power from a power source. A second connector is positioned on a second end of the housing and operably connected to the number of lithium-ion cells. A heating element has a tube for transferring fluid. The heating element is configured to connect to the second connector. A controller is positioned within the housing and operably connected to the number of lithium-ion cells and the second connector. The controller is configured to monitor a rate at which the electrical power is received by the heating element and limit an amount of the electrical power received by the heating element when the rate reaches a predetermined level.

Claims

1. An apparatus for heating fluids, the apparatus comprising:

a number of lithium-ion cells positioned within a housing;

a first connector positioned on a first end of the housing and operably connected to the number of lithium-ion cells, the first connector configured to receive electrical power from an external power source;

a second connector positioned on a second end of the housing and operably connected to the number of lithium-ion cells;

a heating element having a tube for transferring fluid, the heating element configured to connect to the second connector, receive electrical power stored in the number of lithium-ion cells, and heat the fluid by converting the electrical power into thermal energy; and

a controller positioned within the housing and operably connected to the number of lithium-ion cells and the second connector, the controller configured to monitor a rate at which the electrical power is received by the heating element and limit an amount of the electrical power received by the heating element when the rate reaches a predetermined level, and wherein the controller is configured to electrically disconnect the second connector from the number of lithium-ion cells when the first connector is connected to the external power source.

2. The apparatus of claim 1, wherein the controller is further configured to electrically disconnect the second connector from the number of lithium-ion cells in response to the rate at which the electrical power is received by the heating element reaching the predetermined level.

3. The apparatus of claim 1 further comprising:

a graphical display unit configured to display a charging status of the number of lithium-ion cells.

4. The apparatus of claim 3 further comprising:

a feedback connector within the second connector, the feedback connector configured to receive feedback information from the heating element, wherein the graphical display unit is further configured to display the feedback information.

5. The apparatus of claim 3, wherein the graphical display unit is further configured to receive control inputs, and wherein the controller is further configured to control a charging state of the number of lithium-ion cells based on the control inputs received.

6. The apparatus of claim 1 further comprising:

a communication unit configured to send information regarding a charging status of the number of lithium-ion cells to a remote location.

7. The apparatus of claim 6 further comprising:

a feedback connector within the second connector, the feedback connector configured to receive feedback information from the heating element, wherein the communication unit is further configured to send the feedback information to a remote location.

8. The apparatus of claim 6, wherein the communication unit is further configured to receive control signals sent from the remote location in response to the information sent, and wherein the controller is further configured to control a charging state of the number of lithium-ion cells based on the control inputs received.

9. The apparatus of claim 1 further comprising:

a charging circuit connected to the number of lithium-ion cells and to the first connector, the charging circuit configured to receive a range of direct current voltage inputs to charge the number of lithium-ion cells, the range of direct current voltage inputs ranging from about ten volts to about thirty-six volts.

10. The apparatus of claim 9 further comprising:

an adapter operably connected to the charging circuit, the adapter configured to transfer an input voltage into a voltage within the range of direct current voltage inputs, wherein the adapted is one of a alternating current adapter, a pair of electrical cables, and a lighter plug.

11. The apparatus of claim 1 further comprising:

a battery adapter module configured to connect to the second connector, the battery adapter module configured to output power from the number of lithium-ion cells in a number of formats using at least one output connector.

12. The apparatus of claim 1, wherein the at least one output connector is one of a USB connector and a lighter socket.

13. The apparatus of claim 1, wherein the heating element includes a plurality of concatenated heating modules, each heating module in the plurality of concatenated heating modules comprising an input port and an output port, an input port of a first heating module of plurality of concatenated heating modules connected to a intravenous fluid supply and an output port of another heating module of plurality of concatenated heating modules connected to an intravenous fluid needle.

14. The apparatus of claim 1 further comprising:

a carabineer attached to a corner of the housing; and

a plurality of grooves in an exterior surface of the housing

wherein the housing comprises a first portion and a second portion, and wherein a seam between the first portion and a second portion is sonically welded, and

wherein a total weight of the housing is less than or equal to about two pounds.

15. A method for heating fluids, the method comprising:

storing electrical power in a number of lithium-ion cells, wherein the number of lithium-ion cells are stored in a housing and operably connected to a first connector positioned at a first end of the housing and a second connector positioned at a second end of the housing, and wherein the number of lithium-ion cells are configured to receive electrical power from an external power source via the first connector;

transferring fluid through a tube of a heating element, wherein the heating element is configured to connect with the second connector and convert electrical power into thermal energy;

receiving, by the heating element, electrical power from the number of lithium-ion cells via the second connector;

monitoring, by a controller within the housing, a rate at which the electrical power is received by the heating element and limit an amount of the electrical power received by the heating element, wherein the controller is configured to electrically disconnect the second connector from the number of lithium-ion cells when the first connector is connected to the external power source; and

transferring thermal energy from the heating element to the fluid transferring through the tube.

16. The method of claim 15, further comprising:

receiving, by the lithium-ion cells, electrical power from an external power source when the first connector is connected to the external power source;

electrically disconnecting the second connector from the number of lithium-ion cells when the first connector is connected to the external power source;

electrically disconnecting the first connector from the external power source; and

electrically connecting the second connector with the number of lithium-ion cells when the first connector is no longer connected to the external power source.

17. The method of claim 15, further comprising displaying, on a graphical display unit, a charging status of the lithium-ion cells.

18. The method of claim 15, further comprising:

receiving, by a feedback connector with the second connector, feedback information from the heating element; and

displaying, on a graphical display unit, the feedback information.

19. The method of claim 17, further comprising:

receiving, by the graphical display unit, control inputs; and

directing the controller to control a charging state of the number of lithium-ion cells based on the control inputs.

20. The method of claim 15, further comprising:

transferring electrical power to a battery adapter module connected to the second connector; and

outputting electrical power from the number of lithium-ion cells, via the battery adapter module, in a number of formats using at least one output connector.