Patient warming device with patient access

A patient warming device comprising:

• a first compliant layer and a second compliant layer sealed together around an outer border to contain a liquid therebetween and to form a wrap configured to surround and conform to an appendage of a patient, the wrap comprising:
• a generally longitudinal central portion sized to cover a surface of the appendage;
• a continuous fluid flow path extending between the first compliant layer and the second compliant layer between a fluid inlet located at a distal end of a first side of the central portion and a fluid outlet located at a distal end of a second side of the central portion opposite the first side, said path defined by the outer border and a plurality of internal sealed connections between the first and second compliant layers;
• a first set of flaps extending from the first side of the central portion, the fluid flow path leading from the fluid inlet to the first set of flaps;
• at least one valve disposed in the fluid flow path between adjacent flaps of the first set of flaps;
• a second set of flaps extending from the second side of the central portion, the fluid flow path leading from the first set of flaps to the second set of flaps to the fluid outlet;
• a first pair of flaps comprising a flap nearest the distal end from each of the first set of flaps and the second set of flaps, the first pair of flaps extending to a first distance from the central portion;
• a second pair of flaps comprising a flap nearest a proximal end of the central portion from each of the first set of flaps and the second set of flaps, the second pair of flaps extending to a second distance, greater than the first distance, from the central portion;
• a plurality of hook and loop fasteners comprising:
• hook or loop components affixed to the first compliant layer of the first set of flaps;
• and
• corresponding hook or loop components affixed to the second compliant layer of the second set of flaps;
• and
• where the continuous fluid flow path extends through at least a plurality of the flaps;
• and
• a fluid control pump comprising a pump inlet and a pump outlet, wherein the pump outlet is in fluid communication with the fluid inlet, the pump inlet is in fluid communication with the fluid outlet, and the fluid control pump is configured to heat the liquid and continuously circulate the liquid through the continuous fluid flow path in a continuous loop.