Mattress for a hospital bed

A mattress comprising:

• a generally planar upwardly-facing patient support surface, and
• a stepped downwardly-facing bottom surface including a perimetral portion extending downwardly from the patient support surface a first depth and a central projection extending downwardly from the patient surface a second depth greater than said first depth, the mattress further including head, seat, thigh, and foot portions, at least one of said portions being inflatable.

A mattress comprising a generally planar patient surface having head, seat, thigh, and foot portions, and the foot portion including two bladders which inflate and deflate in two orthogonal directions to vary the height and length of the foot portion, the foot portion having a first length when deflated and a second length when inflated, and the second length is greater than the first length.

A mattress for use on a patient care bed having a longitudinally extending patient support deck provided with longitudinally extending raised upper deck portions extending along its sides, the mattress comprising a longitudinally extending central body portion to be placed on said support deck and lateral portions to be placed upon said upper deck portions, said central body portion having a depth greater than the depth of said lateral portions and an inflatable and deflatable foot supporting portion extending longitudinally from said central body portion to support the lower legs and feet of a patient.

A mattress for use with a step deck having an upper deck, a lower deck coupled to the upper deck by a deck side wall so that the lower deck is spaced apart from the upper deck to define a recess of the step deck, the mattress comprising:

• a lower mattress section having a top surface, a bottom surface, and a side wall, the lower mattress section being configured to be located within the recess of the step deck with the bottom surface of the lower mattress section engaging the lower deck, the side wall of the lower mattress section being located adjacent the deck side wall, and the top surface of the lower mattress section being aligned generally in a plane of the upper deck;
• and
• an upper mattress section having a top surface, a bottom surface, and a side wall, the top surface of the upper mattress section providing a body support surface, and the bottom surface of the upper mattress section engaging the top surface of the lower mattress section and engaging the upper deck.

A body support surface for use on an articulating deck which is movable between a bed position and a chair position, the support surface comprising a mattress having head, body, and foot supporting portions, the foot supporting portion having a first length when the deck is in the bed position and a second length when the deck is in the chair position, the second length shorter than the first length so that the foot supporting portion of the mattress retracts as the deck moves to the chairposition, the mattress having a first thickness in the head and body supporting portions and a second thickness in the foot supporting portion, the second thickness being less than the first thickness.

A body ;support surface for use on an articulating deck which is movable between a bed position and a chair position, the support surface comprising a mattress having head, body, and foot supporting portions, the foot supporting portion having a first length when the deck is in the bed position and a second length when the deck is in the chair position, the second length shorter than the first length so that the foot supporting portion of the mattress retracts as the deck moves to the chair position, the head and body supporting portions of the mattress having a first width and the foot supporting portion has a second width, the second width being less than the first width.

A body support surface for use on an articulating deck which is movable between a bed position and a chair position, the support surface comprising a mattress having head, body, and foot supporting portions, the foot supporting portion having a first length when the deck is in the bed position and a second length when the deck is in the chair position, the second length shorter than the first length so that the foot supporting portion of the mattress retracts as the deck moves to the chair position, the second length being at least 40% less than the first length.

A body support surface for use on an articulating deck which is movable between a bed position and a chair position, the support surface comprising a mattress having head, body, and foot supporting portions, the foot supporting portion having a first length when the deck is in the bed position and a second length when the deck is in the chair position, the second length shorter than the first length so that the foot supporting portion of the mattress retracts as the deck moves to the chair position, the foot supporting portion including two bladders which inflate and deflate in two orthogonal directions to vary the height and length of the foot supporting portion.