초록 ▼

A method and apparatus for therapeutically treating immobile patients is disclosed. A low air loss bed is provided having groups of transversely oriented air bags, each group corresponding to a different portion of the body of a patent supported thereon. Each group comprises first and second sets of

A method and apparatus for therapeutically treating immobile patients is disclosed. A low air loss bed is provided having groups of transversely oriented air bags, each group corresponding to a different portion of the body of a patent supported thereon. Each group comprises first and second sets of air bags alternately positioned in an interdigitated fashion. Valves and circuitry are provided for maintaining a selectable baseline pressure in the air bags belonging to each group. The valves and circuitry is also capable of changing the pressures in each of the sets of air bags mounted to each section of the frame to selectable maximum and minimum values above and below the baseline pressure in a repetitive and cyclical fashion.

대표청구항 ▼

An alternating pressure low air loss bed comprising: a frame having a plurality of sections pivotable with respect to each other, each section corresponding to a portion of the body of a patient supported thereon; first and second sets of air bags mounted transversely to each of the sections of said

An alternating pressure low air loss bed comprising: a frame having a plurality of sections pivotable with respect to each other, each section corresponding to a portion of the body of a patient supported thereon; first and second sets of air bags mounted transversely to each of the sections of said frame, the air bags of said first set of air bags alternately mounted between the air bags of said second set of air bags on each section of said frame; means for supplying air from an air source to said air bags; means for separately sensing the pressure in the air bags of each of said first and second sets of air bags mounted to each section of said frame; means for separately maintaining a selectable baseline pressure in the air bags mounted to each section of said frame; means for alternately signalling said air supplying means to increase the pressure in said first set of air bags to a predetermined and selectable maximum pressure, above the baseline value, decrease the pressure in said second set of air bags to a predetermined and selectable minimum pressure below the baseline value and then to raise the pressure in said second set of air bags to said maximum pressure and lower the pressure in said first set of air bags to said minimum pressure.