Heated patient tube assembly

• US 10,183,126 B1
• Filed: 07/27/2017
• Issued: 01/22/2019
• Est. Priority Date: 07/27/2017
• Status: Active Grant

• Current Assignee: Neonatal Product Group Incorporated
• Original Assignee: Neonatal Product Group Incorporated
• Inventors: Norman, Scott, Petheram, Mark, Hash, Anthony
• Primary Examiner(s): Farrar, Lauren P
• Application Number:
  US15/661,856
• Publication Number:
  US 20190030261A1
• Time in Patent Office: 544 Days
• CPC Class Codes: A61F 2007/0071 using a resistor, e.g. near the spot to be heated
• CPC Class Codes: A61F 2007/009 with a varying magnetic field acting upon the human body, e.g. an implant therein
• CPC Class Codes: A61F 2007/0093 programmed
• CPC Class Codes: A61F 2007/0095 with a temperature indicator
• CPC Class Codes: A61F 2007/126 for invasive application, e.g. for introducing into blood vessels
• CPC Class Codes: A61F 7/007 characterised by electric heating
• CPC Class Codes: A61M 2039/1022 additionally providing electrical connection
• CPC Class Codes: A61M 2205/0233 Conductive materials, e.g. antistatic coatings for spark prevention
• CPC Class Codes: A61M 2205/0244 Micromachined materials, e.g. made from silicon wafers, microelectromechanical systems [MEMS] or comprising nanotechnology
• CPC Class Codes: A61M 2205/18 with alarm
• CPC Class Codes: A61M 2205/3368 Temperature
• CPC Class Codes: A61M 2205/3592 using telemetric means, e.g. radio or optical transmission
• CPC Class Codes: A61M 2205/3653 by Joule effect, i.e. electric resistance
• CPC Class Codes: A61M 2205/6081 Colour codes
• CPC Class Codes: A61M 39/10 Tube connectors; Tube couplings A61M39/02 takes precedence; connecting needles to syringes or hubs A61M5/34; connecting catheter tubes to hubs A61M25/0014
• CPC Class Codes: A61M 5/142 Pressure infusion, e.g. using pumps
• CPC Class Codes: A61M 5/44 having means for cooling or heating the devices or media

Abstract

A heated patient tube assembly that carries and warms fluids to a desired temperature includes an elongated hollow tube and a heating assembly at least partially embedded within the tube for heating the tube and fluids carried in the tube. The heated patient tube assembly can be selectively used in any combination of three different modes: a first mode in which the heating assembly is connected to a control assembly, a second mode in which the heating assembly is powered wirelessly, and a third mode in which the tube is inserted into and heated by an external warming device.

Claims

1. A heated patient tube assembly comprising:

an elongated hollow tube having—

an inner wall and an outer wall, the inner wall defining an interior fluid passageway for carrying fluids,

a first end configured to be connected to a pump or fluid source or receiving the fluids therefrom, and

a second end opposite the first end for delivering the fluids to a patient; and

a heating assembly including—

a heating element embedded substantially between the inner wall and outer wall of the elongated hollow tube, the heating element being configured to receive an electric current via a wired connection and create an electric current when subjected to an electromagnetic field, the heating element having an electrical resistivity such that the heating element generates resistive heating from the received or induced electric current, the heating element being configured to transfer heat to the fluids as the fluids pass through the interior fluid passageway, and

a connector configured to connect the heating element to a power source, the elongated hollow tube being configured to be selectively used simultaneously in at least two of three different modes;

a first mode in which the heating element is powered via the connector, a second mode in which the heating element is powered via induction, and a third mode in which the tube is inserted into and warmed by a warming device.

2. The heated patient tube assembly of claim 1, further comprising an RF antenna embedded substantially between the inner wall and outer wall of the elongated hollow tube for at least one of wirelessly receiving data from a controller or wirelessly transmitting data to the controller.

3. The heated patient tube assembly of claim 2, wherein the RF antenna is configured to transmit a signal representative of a temperature of the heating element to the controller.

4. The heated patient tube assembly of claim 2, wherein the RF antenna is configured to transmit a signal representative of an identifier of the elongated hollow tube to the controller.

5. The heated patient tube assembly of claim 4, wherein the identifier is a unique identifier.

6. The heated patient tube assembly of claim 2, wherein the RF antenna is configured to receive a control signal for changing an output level of the heating element from the controller.

7. The heated patient tube assembly of claim 1, further comprising an RF antenna extruded in the elongated hollow tube for at least one of wirelessly receiving data from a controller or wirelessly transmitting data to the controller.

8. The heated patient tube assembly of claim 1, wherein the heating element is configured to heat the elongated hollow tube up to a maximum of 120°

F.

9. The heated patient tube assembly of claim 1, further comprising a controller configured to temporarily deactivate or reduce the output level of the heating element until a temperature of the elongated hollow tube has dropped below an upper threshold temperature.

10. The heated patient tube assembly of claim 1, further comprising a controller configured to maintain a temperature of the fluids passing through the elongated hollow tube between approximately 90°

F. and 103°

F.

11. The heated patient tube assembly of claim 1, further comprising a controller configured to generate a warning if the elongated hollow tube is heated above 120°

F.

12. A heated patient tube assembly comprising:

an elongated hollow tube having—

an inner wall and an outer wall, the inner wall defining an interior fluid passageway for carrying fluids,

a first end configured to be connected to a pump or fluid source for receiving the fluids therefrom, and

a second end opposite the first end for delivering the fluids to a patient;

a heating assembly including—

a heating element embedded substantially between the inner wall and outer wall of the hollow tube, the heating element being configured to receive an electric current via a wired connection and create an electric current when subjected to an electromagnetic field, the heating element having an electrical resistivity such that the heating element generates resistive heating from the received or induced electric current, the heating element being configured to transfer heat to the fluids as the fluids pass through the interior fluid passageway,

a temperature sensor integrated with the heating element for sensing a temperature of the heating element, and a connector configured to connect the heating element to a power source; and

an RF antenna embedded substantially between the inner wall and the outer wall of the hollow tube, the RF antenna being configured to wirelessly transmit a signal representative of a unique identifier of the heated patient tube assembly, a signal representative of a temperature of the heating element, and a signal representative of power usage of the heating element to a controller, and wirelessly receive a control signal for changing an output level of the heating element from the controller;

the elongated hollow tube being configured to be selectively used simultaneously in at least two of three different modes;

a first mode in which the heating element is powered via the connector, a second mode in which the heating element is powered via induction, and a third mode in which the hollow tube is inserted into and warmed by a warming device.

13. The heated patient tube assembly of claim 12, wherein the heating element is configured to heat the elongated hollow tube up to a maximum of 120°

F.

14. The heated patient tube assembly of claim 12, wherein the controller is configured to temporarily deactivate or reduce the output level of the heating element until a temperature of the elongated hollow tube has dropped below an upper threshold temperature.

15. The heated patient tube assembly of claim 12, wherein the controller is configured to maintain a temperature of the fluids passing through the elongated hollow tube between approximately 90°

F. and 103°

F.

16. The heated patient tube assembly of claim 12, wherein the controller is configured to generate a warning if the elongated hollow tube is heated above 120°

F.