Device and method for measuring values from a person lying down, and pressure sensor

An apparatus for measuring values to determine movements of a person lying on a mattress (10) comprising two pressure sensors (13) cooperating with the mattress (10), each pressure sensor (13) comprising a flat sensor cushion (11) filled with a fluid medium, wherein pressure exerted on the pressure sensors (13) by the person lying on the mattress (10) is transmitted via the fluid medium to a sensor element (12) associated with each sensor pad, wherein a first sensor cushion is arranged in the sacral (S) region of the person lying on the mattress and a second sensor cushion is arranged in the thorax (T) region of the person lying on the mattress, and one sensor cushion (11) is arranged to the right of a longitudinal axis (20) of the mattress and the other sensor cushion (11) is arranged to the left of the longitudinal axis (20) of the mattress.

An apparatus for measuring values used to determine movements of a person lying on a mattress (10), comprising two pressure sensors (13) cooperating with the mattress (10), each pressure sensor (13) comprising a flat sensor cushion (11) filled with a fluid medium, wherein pressure exerted on the pressure sensors (13) by the person lying on the mattress (10) is transmitted via the fluid medium to a sensor element (12) associated with each sensor pad, wherein both sensor cushions are arranged in the sacral (S) region of the person lying on the mattress, and both sensor cushions (11) are arranged substantially symmetrically with respect to a longitudinal axis (20) of the mattress.

An apparatus for measuring values used to determine movements of a person lying on a mattress (10), comprising two pressure sensors (13) cooperating with the mattress (10), each pressure sensor (13) comprising a flat sensor cushion (11) filled with a fluid medium, wherein pressure exerted on the pressure sensors (13) by the person lying on the mattress (10) is transmitted via the fluid medium to a sensor element (12) associated with each sensor pad, wherein both sensor cushions are arranged in the thorax (T) region of the person lying on the mattress, and both sensor cushions (11) are arranged substantially symmetrically with respect to a longitudinal axis (20) of the mattress.

An apparatus for measuring values used to determine movements of a person lying on a mattress (10), comprising three pressure sensors (13) cooperating with the mattress (10), each pressure sensor (13) comprising a flat sensor cushion (11) filled with a fluid medium, wherein pressure exerted on the pressure sensors (13) by the person lying on the mattress (10) is transmitted via the fluid medium to a sensor element (12) associated with each sensor pad, wherein two sensor cushions are arranged in the sacral (S) region of the person lying on the mattress and the third sensor cushion is arranged in the thorax (T) region of the person lying on the mattress.

An apparatus for measuring values used to determine movements of a person lying on a mattress (10), comprising four pressure sensors (13) cooperating with the mattress (10), each pressure sensor (13) comprising a flat sensor cushion (11) filled with a fluid medium, wherein pressure exerted on the pressure sensors (13) by the person lying on the mattress (10) is transmitted via the fluid medium to a sensor element (12) associated with each sensor pad, two sensor cushions are arranged in the sacral (S) region of the Person lying on the mattress and two sensor cushions are arranged in the thorax (T) region of the person lying on the mattress, with all four sensor cushions being arranged symmetrically with respect to and at a distance from a longitudinal axis (20) of the mattress and at least one sensor has a wire strain gauge and at least one sensor is designed to measure a change in its shape.

An apparatus for measuring values used to determine movements of a person lying on a mattress (10), comprising four pressure sensors (13) cooperating with the mattress (10), each pressure sensor (13) comprising a flat sensor cushion (11) filled with a fluid medium, wherein pressure exerted on the pressure sensors (13) by the person lying on the mattress (10) is transmitted via the fluid medium to a sensor element (12) associated with each sensor pad two sensor cushions are arranged in the sacral (S) region of the person lying on the mattress and two sensor cushions are arranged in the thorax (T) region of the person lying on the mattress, with all four sensor cushions being arranged symmetrically with respect to and at a distance from a longitudinal axis (20) of the mattress and at least one sensor cushion (11) is of U-shaped design and has three chambers (21, 22, 23), namely two outer chambers (21, 22) and one inner chamber (23) which connects the two outer chambers (21, 22), wherein the inner chamber (23) is smaller that each of the outer chambers (21, 22).