Abstract: A support surface includes a plurality of interconnected node groups, where each node group includes at least two nodes connected by a fluid passage. The plurality of interconnected node groups define a node array. A source of pressurized fluid, such as pressurized air is connected with the node array.

Abstract: Personal warming systems and apparatuses for use in hospitals and other settings. In one embodiment, a heating mattress or pad for warming a patient during a hospital procedure can include a heating element positioned between a first foam portion and a second foam portion. The heating element and the foam portions can be at least partially enclosed in a fluid-resistant cover. The heating element can be operably connected to a control unit that allows an operator to select between a plurality of temperature options for the heating pad. In another embodiment, the heating pad can include one or more radiolucent, or at least generally radiolucent, features that will not appreciably obscure x-ray images taken of a patient positioned on the heating pad. In one aspect of this embodiment, the radiolucent features can include one or more of a carbon-based heating element, an optical temperature sensing device, and/or a thermally responsive state-changing device.

Abstract: Personal warming systems and apparatuses for use in hospitals and other settings are disclosed herein. In one embodiment, a heating pad for warming a patient during a hospital procedure can include a heating element and a patient support portion. The heating element can include one or more radiolucent, or at least generally radiolucent, features. The radiolucent features can include conductive paths supported by a flexible substrate. The conductive paths can include conductive yarns oriented in linear and/or non-linear patterns on the flexible substrate. In one aspect of this embodiment, the conductive yarns can include conductive strands having a metallic plating, such as silver plating.