Thermal retention coverings for use with temperature probes

An MRI-compatible thermal retention covering configured for use with an MRI-compatible temperature probe, the MRI-compatible thermal retention covering comprising:

• a flexible fluid-impermeable outer shell having two opposing outer layers sealed at a perimeter of the flexible fluid-impermeable outer shell, a first one of the outer layers defining a patient side surface configured to be oriented toward a patient;
• two or more insulation layers disposed within the outer shell, the two or more insulation layers comprising:
• a flexible air cell layer positioned inside the outer shell, the air cell layer comprising a plurality of cells and configured to entrap air within the cells to create a heat trapping layer of air within the outer shell to prevent heat loss;
• and
• a flexible thermal insulation layer positioned inside the outer shell adjacent the flexible air cell layer, the thermal insulation layer comprising a fibrous material having low thermal conductivity and providing insulation against conduction of heat through the MRI-compatible thermal retention covering;
• and
• a portal formed in the patient side surface and in communication with an interior space between the first outer layer and the air cell layer;
• wherein the portal is sized and shaped to receive a distal portion of the MRI-compatible temperature probe therethrough for insertion of the temperature probe into the interior space between the first outer layer and the air cell layer;
• and
• wherein the portal formed in the patient side surface and in communication with the interior space between the first outer layer and the air cell layer enables monitoring of a patient's temperature in a protected microenvironment formed by the interior space between the first outer layer and the air cell layer.

A thermal retention covering, comprising:

• a flexible fluid-impermeable outer shell having two outer layers sealed at a perimeter of the flexible fluid-impermeable outer shell, a first one of the outer layers forming a patient side surface configured to be oriented toward a patient;
• one or more inner insulating layers disposed between the two outer layers;
• and
• a portal in the first outer layer forming the patient side surface and in communication with an interior space between the first outer layer and the one or more inner insulating layers, wherein the portal comprises a grommet that forms a first raised annular structure that extends outwards from the patient side surface and a second raised annular structure that extends inwards from an interior surface of the first outer layer;
• wherein the portal is sized and shaped to receive a temperature probe therethrough for insertion of the temperature probe into the interior space between the first outer layer and the one or more inner insulating layers;
• wherein the grommet is configured to retain a position of the temperature probe relative to the portal via frictional forces between the grommet and an exterior surface of the temperature probe;
• and
• wherein the portal is a first one of a plurality of portals in the patient side surface and in communication with the interior space between the first outer layer and the one or more inner insulating layers, wherein the plurality of portals enables use of a selected area of the thermal retention covering for taking a temperature reading.