Patient transfer device

An inflatable patient transfer mattress, comprising:

• a patient support portion including a first side adjacent a patient and a second adjacent a supporting surface and a second side adjacent a patient;
• a first pontoon disposed on a first lateral side of the patient supporting portion;
• a second pontoon disposed on a second lateral side of the patient supporting portion;
• a plurality of tethers disposed laterally between the first and second pontoons and between the first side and the second side of the patient support portion, wherein the plurality of tethers includes at least one baffle including a first edge having a substantially concave shape relative to the surface;
• an unloaded state including the first and second pontoons being in contact with the surface, and the first side of the patient support portion being spaced a first distance away from the surface;
• and
• a loaded state including the first and second pontoons being in contact with the surface, and the first side of the patient support portion being spaced a second distance away from the surface, the second distance being smaller than the first distance.

A patient support mattress, comprising:

• a first bottom sheet for contacting a surface and having a first perimeter and a first width;
• a second top sheet for contacting a patient and having a second perimeter and a second width, the second width being smaller than the first width;
• the first perimeter joined to the second perimeter forming a first pontoon, forming a second pontoon, forming a patient support portion, and defining an internal plenum;
• and
• a plurality of baffles, each having a first substantially concave edge UP from the first bottom sheet and disposed adjacent and joined to the first bottom sheet, a second substantially linear edge disposed adjacent and joined to the second top sheet, and first and second lateral edges.