DETAILED DESCRIPTION The object of the present invention is to provide a hood with a double wall with which the slightest possible adverse effect on the patient located therein is avoided.
The object is accomplished by the hood according to the present invention with a double wall.
In the hood according to the present invention with a double wall for a thermotherapy device, the double wall extends essentially in parallel to at least one limiting surface of the hood.
This may be, e.
g.
, the upper limiting surface.
As an alternative or in addition the lateral surfaces or a flap located at the hood may be the location of the portion that combines to form the double wall.
The double wall is arranged on the hood in such a way that it can be detached or pivoted off from the outside.
No water of condensation will thus accumulate in the intermediate space between the double wall and the hood, and the intermediate space and interior surface is readily accessible from the outside, e.
g.
, for cleaning purposes, without the patient, who may be a premature or newborn infant located in the thermotherapy device, being adversely affected.
In an advantageous embodiment, the double wall has a peripheral seal, which isolates a volume in the intermediate space, between the surfaces of the double wall portion and the hood surface, against the environment.
Heat insulation is thus achieved, which leads to an increase in the temperature of the hood of the thermotherapy device, regardless of whether other heating means, e.
g.
, a hot air flow, are provided.
The volume in the intermediate space, between the surfaces of the double wall portion and the hood surface, is advantageously filled with a material that possesses good insulating properties.
Air, i.
e.
, regular ambient air, or a suitable insulating material, may be considered as preferable for use for this purpose.
The suitable insulating materials are, e.
g.
, expanded materials with pores, in which air is enclosed, as well as materials that are also transparent.
In another preferred embodiment, the double wall is locked in a position at a predetermined distance at the hood
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Heart Surgery 
