Person support apparatuses with motion monitoring
AssigneeStryker Corporation
InventorsMarko N. Kostic, Jonathan Mark Greenbank
Life of this patent
Estimating the term…
Abstract
A person support apparatus, such as a bed, cot, stretcher, or the like, includes an exit detection system that utilizes an occupant motion parameter to determine whether to issue an alert or not. The motion parameter may be based on the weight and motion of the occupant. Successive positions of the occupant are determined in order to calculate a velocity of the occupant. In some embodiments, the kinetic energy of the occupant is used to determine if an alert should be issued. Objects positioned on the person support apparatus may also be detected and tracked. Auto-zeroing of a built-in scale, as well as automatic recognition of the removal, movement, and/or addition of objects is also provided.
Claims23
A person support apparatus comprising:
- a frame;
- a deck supported on the frame and adapted to support a person thereon;
- a plurality of force sensors coupled to the frame and adapted to detect a load supported by the frame;
- a memory having stored therein an estimated tare weight value;
- and
- a controller in communication with the plurality of force sensors, the controller configured to take a weight reading of the load using outputs from the force sensors, the controller further adapted to automatically use the weight reading as an actual tare weight value only if the weight reading is within a threshold amount of the estimated tare weight value.
A person support apparatus comprising:
- a frame;
- a deck supported on the frame and adapted to support a person thereon, the deck including a head section and at least one other section, and the head section being pivotable between a flat orientation and a non-flat orientation;
- an angle sensor adapted to detect an orientation of the head section;
- a scale system adapted to detect a weight of the deck and any object positioned thereon;
- a memory having stored therein an estimated tare weight value for the scale system;
- and
- a controller in communication with the scale system and the memory, the controller adapted to automatically use, upon power up of the person support apparatus, an actual weight reading from the scale system as an actual tare weight value if both the actual weight reading is within a threshold amount of the estimated tare weight value, and the angle sensor indicates the head section is in the flat orientation.
A person support apparatus comprising:
- a frame;
- a deck supported on the frame and adapted to support a person thereon;
- a scale system adapted to detect a weight of the deck and any object positioned thereon;
- a memory having stored therein an estimated tare weight value for the scale system;
- and
- a controller in communication with the scale system and the memory, the controller adapted to use an actual weight reading from the scale system as an actual tare weight value if the actual weight reading is within a threshold amount of the estimated tare weight value.
Dependencies are inferred from the claim text.