Hospital bed with patient weight and displacement sensors for determining at least one of lateral and longitudinal patient location on a patient support assembly
First Claim
1. A hospital bed comprising:
- a base;
a patient support assembly including a frame and a patient support surface supported on the frame, the frame having a pair of longitudinal frame members and at least one transversal frame member extending between the longitudinal frame members;
an elevation assembly for selectively raising and lowering the patient support assembly relative to the base, the elevation assembly having a lower end connected to the base and an upper end connected to the at least one transversal frame member;
at least one deformation sensor secured to the longitudinal frame members, said at least one deformation sensor being adapted to generate a signal indicative of a deformation of said longitudinal frame members;
a location determination unit operatively connected to said at least one deformation sensor for receiving the signal therefrom and for determining at least one of a lateral and longitudinal patient location on the patient support assembly based on said deformation of said longitudinal frame members.
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Accused Products
Abstract
A system for determining a location of a patient on a hospital bed comprising: at least one deformation sensor adapted to generate a signal indicative of a deformation of a frame of the bed; a location determination unit for determining a lateral and/or longitudinal location of the patient based on the deformation of the frame. A method for monitoring an exit of a patient from a hospital bed comprising: determining a patient location on the bed based on measured deformation and generating an alarm signal if the determined location is outside a predetermined area. A weight sensing system for a hospital bed having a base with a suspended frame suspended from a fixed frame comprising: a load sensor connecting the suspended frame and the fixed frame via a suspension member which is unsecured from the fixed frame to allow free vertical movement of the suspended frame relative to the fixed frame.
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Citations
19 Claims
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1. A hospital bed comprising:
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a base; a patient support assembly including a frame and a patient support surface supported on the frame, the frame having a pair of longitudinal frame members and at least one transversal frame member extending between the longitudinal frame members; an elevation assembly for selectively raising and lowering the patient support assembly relative to the base, the elevation assembly having a lower end connected to the base and an upper end connected to the at least one transversal frame member; at least one deformation sensor secured to the longitudinal frame members, said at least one deformation sensor being adapted to generate a signal indicative of a deformation of said longitudinal frame members; a location determination unit operatively connected to said at least one deformation sensor for receiving the signal therefrom and for determining at least one of a lateral and longitudinal patient location on the patient support assembly based on said deformation of said longitudinal frame members. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for determining a location of a patient on a hospital bed, the hospital bed having a patient support assembly supported on a frame, the system comprising:
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at least one deformation sensor removably secured to the frame, the at least one deformation sensor being adapted to generate a signal indicative of a deformation of said frame; a location determination unit operatively connected to said at least one deformation sensor for receiving the signal therefrom and for determining at least one of a lateral and longitudinal patient location on the patient support assembly based on said deformation of said frame. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification