Person support apparatuses with motion monitoring
AssigneeStryker Corporation
InventorsMarko N. Kostic, Jonathan Mark Greenbank
Life of this patent
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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.
Claims25
A person support apparatus comprising:
- a support surface adapted to support thereon an occupant of the person support apparatus;
- a plurality of force sensors adapted to determine a weight of the occupant of the support surface;
- and
- an exit detection system adapted to issue an alert if the occupant of the person support apparatus is moving toward exiting the support surface, the exit detection system adapted to take into account the weight of the occupant in determining whether or not the occupant is moving toward exiting the support surface.
A person support apparatus comprising:
- a support surface adapted to support thereon an occupant of the person support apparatus;
- a siderail positioned adjacent to the support surface, the siderail movable between a raised position and a lowered position;
- and
- an exit detection system adapted to issue an alert if the occupant of the person support apparatus moves in a manner that meets a set of criteria, wherein the exit detection system changes the set of criteria based upon whether or not the siderail is in the raised position or the lowered position.
A person support apparatus comprising:
- a support surface adapted to support thereon an occupant of the person support apparatus;
- and
- an exit detection system adapted to determine a kinetic energy of the occupant and to use the determined kinetic energy in deciding whether to issue an alert, the alert providing an indication that the occupant of the support surface may be about to exit the support surface.
Dependencies are inferred from the claim text.