Rotation limiter for a lateral rotation bed
AssigneeKCI Licensing, Inc.
InventorsAlan L. Bartlett, Christopher T. Niederkrom
Life of this patent
Estimating the term…
Abstract
A direct data and power interface is provided to the patient support platform of a therapeutic bed that allows for a complete rotation of the patient support platform in either direction. To ensure that the data and power interface is not articulated beyond its physical limit as a result of manually rotating the bed in the emergency backup mode, a mechanical stop is provided to limit rotation of the patient support platform to about 730 degrees. Sensors are provided to detect activation of the mechanical stop.
Claims20
A therapeutic bed comprising:
- a base frame;
- a patient support frame rotationally mounted on the base frame, such that the patient support frame is capable of turning a patient with respect to the base frame;
- and
- a rotation limiter pivotally mounted to the base frame and operable to pivot between a first position restricting further rotation in the clockwise direction and a second position restricting further rotation in the counterclockwise direction.
The therapeutic bed of claim 10, wherein engagement of the stop pin with the second and third contact portions of the rotation limiter during a revolution of the patient support frame is not operable to stop said revolution of the patient support frame but is operable to reposition the rotation limiter to limit a successive, same direction revolution of the patient support frame.
A therapeutic bed comprising:
- a base frame;
- a patient support frame rotationally mounted on the base frame, such that the patient support frame is capable of turning a patient with respect to the base frame;
- and
- an interlock to prevent excessive rotation of the patient support frame, the interlock comprising:
- a first member mounted on the patient support frame;
- a second member fixedly mounted on the base frame;
- and
- a third member pivotally mounted to the base frame at a pivot point, the third member having a first contact portion for engaging the first member and a second contact portion for engaging the second member;
- wherein sufficiently extensive rotation of the patient support frame in a single direction causes the first member to engage the third member, which in turn causes the third member to pivot about its pivot point until it comes into contact with the second member, thereby blocking further rotation.
A therapeutic bed comprising:
- a base frame;
- a patient support frame rotationally mounted on the base frame, such that the patient support frame is capable of turning a patient with respect to the base frame;
- and
- rotation limiting means for restricting excessive rotation of the patient support frame in any one direction.
Dependencies are inferred from the claim text.