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US 9,750,654 B2Granted
Bed
AssigneeLinak A/S
InventorPeter Brøndum
Life of this patent
Estimating the term…
Abstract
Height adjustable beds involve the risk for the patient to fall out of the bed. In order to prevent this to happen, the bed is furnished with a device which observes whether a nursing person is within a proximity zone of the bed. When the nursing person leaves the proximity zone and the bed is adjusted to a height implying potential danger for the person in the bed, a message (sms) is sent to a mobile unit carried by the nursing person. The indication warns the nursing person, making it possible for him to prevent the potential dangerous situation by height adjustment of the bed to a safe height for leaving the bed. Hereby personal injury is prevented or minimized as much as possible.
Claims14
A bed comprising:
- a height adjustable sub frame including wheels configured to rest on the ground,
- an adjustable support frame for a mattress mounted on the sub frame, said adjustable support frame including an adjustable backrest and an adjustable leg rest, said support frame being adjustable in height relative to said sub frame
- a plurality of actuators for height adjustment of the support frame, said adjustment of the backrest and the legrest,
- a control for the plurality of actuators,
- an operating device to operate the plurality of actuators via the control wherein the operating device includes a height adjustment control unit for controlling the height adjustment of the support frame, and
- wherein the control includes
- means to register a person authorized to carry out height adjustment of the sub frame and thereby the support frame of the bed when the person is proximate to the bed,
- means to determine a support frame height level to which the support frame has been adjusted wherein the support frame height level defines a user egress height;
- means to determine whether the determined support frame height level is above a certain level, said certain level indicating a maximum height of the support frame above the sub frame corresponding to the maximum height of the support frame above the ground on which the wheels rest for safely leaving the bed and thereby prevent a user from injury when actually leaving the bed,
- wherein said determined support frame height level is proportional with a displacement of a movable activating element of one of the plurality of actuators, wherein the activating element comprises a spindle and wherein the means to determine the support frame height level comprises an absolute position determination system configured to determine a position of a spindle nut that moves in a lengthwise direction of the spindle when the spindle is rotated, wherein the absolute position determination system comprises a potentiometer,
- a receiver for receiving a signal from a sender in the form of a mobile unit carried by a person who is authorized to carry out height adjustment of the bed, and
- wherein the control interconnects the receiver and the sender as an interacting electronically locking mechanism, the control deactivates to lock and prevent from use the height adjustment control unit of the operating device when the receiver and the sender are not in a common proximity zone, the control unit further unlocking the height adjustment control unit of the operating device of the bed when both receiver and sender are in a common proximity zone.
9 more elements
A bed comprising:
- a height adjustable sub frame including wheels configured to rest on the ground,
- an adjustable support frame for a mattress mounted on the sub frame, said adjustable support frame including an adjustable backrest and an adjustable leg rest, said support frame being adjustable in height relative to said sub frame
- a plurality of actuators for height adjustment of the support frame, said adjustment of the backrest and the legrest,
- a control for the plurality of actuators,
- an operating device to operate the plurality of actuators via the control wherein the operating device includes a height adjustment control unit for controlling the height adjustment of the support frame, and
- wherein the control includes
- means to register a person authorized to carry out height adjustment of the sub frame and thereby the support frame of the bed when the person is proximate to the bed,
- means to determine a support frame height level to which the support frame has been adjusted wherein the support frame height level defines a user egress height;
- means to determine whether the determined support frame height level is above a certain level, said certain level indicating a maximum height of the support frame above the sub frame corresponding to the maximum height of the support frame above the ground on which the wheels rest for safely leaving the bed and thereby prevent a user from injury when actually leaving the bed,
- wherein said determined support frame height level is proportional with a displacement of a movable activating element of one of the plurality of actuators, wherein the activating element comprises a spindle and wherein the means to determine the support frame height level comprises an incremental position determination system configured to count a number of revolutions of the spindle and from a pitch of the spindle generate a displacement of a spindle nut that moves in a lengthwise direction of the spindle when the spindle is rotated,
- a receiver for receiving a signal from a sender in the form of a mobile unit carried by a person who is authorized to carry out height adjustment of the bed, and
- wherein the control interconnects the receiver and the sender as an interacting electronically locking mechanism, the control deactivates to lock and prevent from use the height adjustment control unit of the operating device when the receiver and the sender are not in a common proximity zone, the control unit further unlocking the height adjustment control unit of the operating device of the bed when both receiver and sender are in a common proximity zone.
9 more elements
Dependencies are inferred from the claim text.