Infant thermal support device

• US 6,746,394 B2
• Filed: 05/29/2002
• Issued: 06/08/2004
• Est. Priority Date: 12/17/1993
• Status: Expired due to Fees

• Current Assignee: Draeger Medical Systems Incorporated (Dragerwerk AG)
• Original Assignee: Hill-Rom Services Incorporated (Baxter International Inc.)
• Inventors: Donnelly, Michael M., Buchholz, Francis Joseph III, Jacobsen, Brent C.
• Primary Examiner(s): Lacyk, John P.
• Application Number:
  US10/157,331
• Publication Number:
  US 20020143233A1
• Time in Patent Office: 741 Days
• Field of Search: 600/21-22, 128/736
• US Class Current: 600/22
• CPC Class Codes: A61B 2017/00119 alarm; indicating an abnormal situation
• CPC Class Codes: A61B 2090/401 using air flow
• CPC Class Codes: A61F 2007/006 of gas
• CPC Class Codes: A61F 2007/0088 Radiating heat
• CPC Class Codes: A61F 7/00 Heating or cooling appliances for medical or therapeutic treatment of the human body heating or cooling means in connection with bedsteads or mattresses A47C21/00 ; massage, therapeutic baths A61H; hyperthermia using electric or magnetic fields or ultrasound A61N; electric heating elements H05B
• CPC Class Codes: A61G 11/00 Baby-incubators; Couveuses
• CPC Class Codes: A61G 11/003 height-adjustable heater
• CPC Class Codes: A61G 11/006 by pivoting
• CPC Class Codes: A61G 2210/50 for radiography
• CPC Class Codes: A61G 7/012 raising or lowering of the whole mattress frame A61G7/005, A61G7/008 take precedence
• CPC Class Codes: F24F 11/30 for purposes related to the operation of the system, e.g. for safety or monitoring
• CPC Class Codes: F24F 2110/00 Control inputs relating to air properties
• CPC Class Codes: F24F 2110/10 Temperature
• CPC Class Codes: F24F 9/00 Use of air currents for screening, e.g. air curtains
• CPC Class Codes: G05D 23/1917 using digital means
• CPC Class Codes: G05D 27/02 characterised by the use of electric means

Abstract

An infant thermal support device which provides convective heat transfer similar to an incubator yet which allows for unlimited care provider access to the infant without compromising the infant'"'"'s thermal environment. The device has an infant support with head and foot ends and lateral sides, and provides a heated curtain of air traveling over an infant on the support to maintain the temperature of the infant at an appropriate level. Vertically oriented curtains of air travel upwardly from the lateral edges and at least one end of the support. The device provides warmth to the infant on the support by virtue of the heated air curtain, and the vertically oriented air curtains reduced perturbations of the heated air curtain caused by physical disturbances adjacent to the device such that a canopy enclosing the device is not required. The device further comprises a raisable and lowerable canopy and infrared heater, such that the device can function as either an infant radiant warmer, an incubator or both. Sensors mounted on the device sense disturbances around the device and the position of the canopy and vary the speeds of the heated air curtain and perturbation reducing curtains accordingly.

Claims

1. An infant thermal support device comprising a base portion, an infant supporting portion coupled to the base portion, a plurality of transparent guards coupled to the infant supporting portion and extending upwardly therefrom, a transparent canopy positioned above the infant supporting portion and movable vertically relative to the infant supporting portion between a raised position in which the canopy is spaced-apart from the plurality of guards and a lowered position in which the canopy cooperates with the plurality of guards to form an incubator enclosure, an infrared heater configured to heat an infant on the supporting portion when the canopy is in the raised position, and an air heater, a humidifier, and a blower configured to cooperate with the enclosure to provide a warm, moist environment for the infant.

2. The infant thermal support device of claim 1, wherein the infant supporting portion is movable vertically relative to the base portion.

3. The infant thermal support device of claim 2, further comprising a vertical drive having a first portion and a second portion, the first portion moving upwardly relative to the second portion to raise the infant supporting portion vertically relative to the base portion, and the first portion moving downwardly relative to the second portion to lower the infant supporting portion vertically relative to the base portion.

4. The infant thermal support device of claim 1, further comprising a support arm having a first portion and a second portion, the first portion moving upwardly relative to the second portion to raise the canopy vertically relative to the infant supporting portion, and the first portion moving downwardly relative to the second portion to lower the canopy vertically relative to the infant supporting portion.

5. The infant thermal support device of claim 4, further comprising a controller and a position sensor to sense a position of the canopy relative to the infant supporting portion, the position sensor providing feedback to the controller, and the controller varying a speed of the blower based on the feedback from the position sensor.

6. The infant thermal support device of claim 1, wherein operation of the blower moves air out of the infant supporting portion upwardly alongside at least one of the plurality of guards.

7. The infant thermal support device of claim 1, wherein at least one of the guards is pivotable downwardly relative to the infant supporting portion.

8. The infant thermal support device of claim 1, wherein lower edges of the canopy engage with upper edges of the plurality of guards when the canopy cooperates with the plurality of guards to form the infant enclosure.

9. The infant thermal support device of claim 1, wherein the air heater, the humidifier, and the blower are positioned within the infant supporting portion.

10. An infant thermal support device comprising a base portion, an infant supporting portion coupled to the base portion, a plurality of guards coupled to the infant supporting portion and extending upwardly therefrom, at least one of the guards being movable downwardly to provide increased access to an infant supported on the infant supporting portion, a canopy positioned above the infant supporting portion and movable vertically relative to the infant supporting portion between a raised position in which the canopy is spaced-apart from the plurality of guards and a lowered position in which the canopy cooperates with the plurality of guards to form an enclosure for the infant, an air heater, a humidifier, and a blower positioned and configured to provide a warm, moist environment in the enclosure, and an infrared heater positioned to direct radiant heat toward the infant supporting portion.

11. The infant thermal support device of claim 10, wherein the canopy is motor driven to move between the raised position and the lowered position.

12. The infant thermal support device of claim 10, wherein the air heater, the humidifier, and the blower are positioned within the infant supporting portion.

13. The infant thermal support device of claim 10, wherein the infrared heater is positioned above the infant supporting portion.

14. The infant thermal support device of claim 10, wherein the infrared heater is movable vertically relative to the infant supporting portion.

15. The infant thermal support device of claim 14, wherein the infrared heater is movable vertically with the canopy.

16. The infant thermal support device of claim 10, wherein the infant supporting portion is movable vertically relative to the base portion.

17. The infant thermal support device of claim 10, wherein the infrared heater operates to direct heat toward the infant supporting portion when the canopy is in the raised position.

18. An infant thermal support device comprising a base portion, an infant supporting positioned above the base portion and movable vertically relative to the base portion to support an infant at selected heights, a plurality of guards coupled to the infant supporting portion and extending upwardly therefrom, at least one of the guards being movable downwardly to provide increased access to an infant supported on the infant supporting portion, a canopy positioned above the infant supporting portion and movable vertically relative to the infant supporting portion between a raised position in which the canopy is spaced-apart from the plurality of guards and a lowered position in which the canopy cooperates with the plurality of guards to form an enclosure for the infant, a first heater and a blower positioned and configured to provide heated air into the enclosure, and a second heater positioned and configured to direct radiant heat toward the infant supporting portion.

19. The infant thermal support device of claim 18, further comprising a vertical drive having a first portion and a second portion, the first portion moving upwardly relative to the second portion to raise the infant supporting portion vertically relative to the base portion, and the first portion moving downwardly relative to the second portion to lower the infant supporting portion vertically relative to the base portion.

20. The infant thermal support device of claim 18, further comprising a support arm having a first portion and a second portion, the first portion moving upwardly relative to the second portion to raise the canopy vertically relative to the infant supporting portion, and the first portion moving downwardly relative to the second portion to lower the canopy vertically relative to the infant supporting portion.

21. The infant thermal support device of claim 18, wherein the first heater and the blower are positioned within the infant supporting portion.

22. The infant thermal support device of claim 18, further comprising a controller and a position sensor to sense a position of the canopy relative to the infant supporting portion, the position sensor providing feedback to the controller, and the controller varying the speed of the blower based on the feedback from the position sensor.

23. The infant thermal support device of claim 18, wherein the heated air moves out of the infant supporting portion upwardly alongside at least one of the plurality of guards.

24. The infant thermal support device of claim 18, wherein at least one of the guards is pivotable downwardly relative to the infant supporting portion.

25. The infant thermal support device of claim 18, wherein lower edges of the canopy engage with upper edges of the plurality of guards when the canopy cooperates with the plurality of guards to form the enclosure.

26. The infant thermal support device of claim 18, further comprising a humidifier to humidify the enclosure.