Warming therapy device

Patent metadata

Field	Value
Publication number	US-9820906-B2
Application number	US-201213430921-A
Country	US
Kind code	B2
Filing date	Mar 27, 2012
Priority date	Mar 27, 2012
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

A heat therapy device including a care unit presenting a lying surface for supporting an infant, a hood which is moveable between a closed position covering the care unit and an opened position clearing the top of the care unit, a radiation heater arranged to irradiate the lying surface in the opened position of the hood, a convection heater, and control units which are configured and arranged to control the operation of the radiation and convection heaters, wherein the control units are configured and arranged to control the operation of the convection heater as a primary heater when the hood is in the closed position and to control the operation of the radiation heater as the primary heater when the hood is in the opened position.

First claim

What is claimed is:

1. A heat therapy device comprising:
a care unit comprising a lying surface for supporting an infant;
a hood moveable between a closed position covering the care unit and an opened position clearing a top of the care unit;
a radiation heater arranged for irradiating the lying surface in the opened position of the hood;
a convection heater; and
a control device which is configured and arranged to control said radiation heater and said convection heater, wherein the control device is configured and arranged to control operation of said convection heater as a primary heater when the hood is in the closed position and to control operation of the radiation heater as the primary heater when the hood is in the opened position, said control device being further configured and arranged:
to operate the radiation heater in a standby mode when the hood is in the closed position and to operate the convection heater in a standby mode when the hood is in the opened position;
when the hood begins to open, to operate the radiation heater for a predetermined heating-up period at a predetermined maximum radiation heating output, and after expiration of the heating-up period, to change over to a controlled operation of the radiation heater;
after beginning closing the hood, to operate the convection heater for a predetermined heating-up period at an increased convection heating output, and after expiration of the heating-up period, to change over to a controlled operation of the convection heater; and
after beginning closing the hood, to operate the radiation heater for a hood heating-up period, which is a first portion of the predetermined heating-up period of the convection heater, at an increased hood heating output in order to raise a temperature of the hood, and to reduce a power input for the radiation heater after expiration of the hood heating-up period, and to operate the convection heater for a remaining portion of the predetermined heating-up period of the convection heater at a predetermined maximum convection heating output, wherein the first portion of the predetermined heating-up period of the convection heater is shorter than the remaining portion of the predetermined heating-up period of the convection heater.

2. A heat therapy device according to claim 1 , wherein the control device comprises one or more control units.

3. A heat therapy device according to claim 2 , wherein the one or more control units are further configured and arranged to reduce a power supply for the radiation heater during the heating-up period of the convection heater such that a sum of convection heating output and radiation heating output does not exceed a predetermined threshold.

4. A heat therapy device according to claim 2 , wherein the one or more control units are further configured and arranged to reduce power input to the convection heater during the heating-up period of the radiation heater such that a sum of the radiation heating output and the convection heating output does not exceed a predetermined threshold.

5. A heat therapy device according to claim 1 , wherein the control device comprises a plurality of control units, said control units being further configured and arranged to reduce a power input to the convection heater during the heating-up period of the radiation heater such that a sum of the radiation heating output and the convection heating output does not exceed a predetermined threshold.

6. A heat therapy device according to claim 5 , wherein the control units are further configured and arranged to reduce a power supply for the radiation heater during the heating-up period of the convection heater such that a sum of convection heating output and radiation heating output does not exceed a predetermined threshold.

7. A heat therapy device according to claim 1 , wherein the control device comprises control units, the convection heater being provided with a fan for distributing heated-up air, and the control units being configured and arranged to reduce a power input to the fan during the heating-up period of the radiation heater.

8. A heat therapy device according to claim 1 , wherein said radiation heater provides a radiation heater standby heating output in said standby mode when the hood is closed, said convection heater providing a convection heater standby heating output in said standby mode when the hood is in the opened position, said radiation heater standby heating output being less than said predetermined maximum radiation heating output, said convection heater standby heating output being less than said increased convection heating output.

9. A heat therapy device comprising:
a care unit comprising a lying surface for supporting an infant;
a hood moveable between a closed position covering the care unit and an opened position;
a radiation heater arranged for irradiating the lying surface in the opened position of the hood;
a convection heater;
a control system configured and arranged to:
control operation of the radiation heater as the primary heater when the hood is in the opened position;
operate the radiation heater in a radiation heater standby mode when the hood is closed, wherein said care unit is at least partially heated via at least said radiation heater in said standby mode when the hood is in the closed position;
operate the radiation heater for a predetermined heating-up period at a predetermined maximum radiation heating output when the hood begins to open;
change over to a controlled operation of the radiation heater after expiration of the heating-up period;
control operation of said convection heater as a primary heater when the hood is in the closed position;
operate the convection heater in a standby mode when the hood is in the opened position, wherein said care unit is at least partially heated via at least said convection heater in said standby mode of said convection heater when the hood is in the opened position;
operate the convection heater for a predetermined heating-up period at an increased convection heating output after beginning a closing operation of the hood;
change over to a controlled operation of the convection heater after expiration of the heating-up period; and
after beginning the closing operation of the hood, to operate the radiation heater for a hood heating-up period, which is a first portion of the predetermined heating-up period of the convection heater, at an increased hood heating output in order to raise a temperature of the hood, and to reduce a power input for the radiation heater after expiration of the hood heating-up period, and to operate the convection heater for a remaining portion of the predetermined heating-up period of the convection heater at a predetermined maximum convection heating output, wherein the first portion of the predetermined heating-up period of the convection heater is shorter than the remaining portion of the predetermined heating-up period of the convection heater.

10. A heat therapy device according to claim 9 , wherein said hood clears a top of the care unit in said opened position, wherein said hood is located at a spaced location from a radiation output path of said radiation heater with said hood in said opened position.

11. A heat therapy device according to claim 9 , wherein said control system comprises a radiation heater control unit and a convection heater control unit, said radiation heater control unit being configured and arranged to perform:
the controlled operation of the radiation heater as the primary heater when the hood is in the opened position;
the operation of the radiation heater in the radiation heater standby mode when the hood is in the closed positio

Assignees

• Koch Jochim
• Timme Ulf
• Draegerwerk Ag & Co Kgaa

Inventors

• Koch Jochim
• Timme Ulf

Classifications

• G05D23/1919

  characterised by the type of controller · CPC title

• A61G11/00 Primary

  Baby-incubators; Couveuses · CPC title

• A61G11/005

  with movable walls, e.g. for accessing the inside, removable walls · CPC title

• A61G2203/46

  for temperature · CPC title