NOVEL BED SYSTEM ATTACHABLE TO A HOSPITAL BED

Abstract

There is provided a bed system that is simple to install on existing hospital beds and which does not require any modification of the existing bed. The bed system has a first and a second frame nested in a common pivot means, and actuators connected thereto in order to establish an angle formed between the frames, where they are rotatable about a longitudinal axis through activation of the actuators. The system is mounted on a base frame, which can be attached to an existing frame of a hospital bed.

Claims

1. A bed system attachable to a hospital bed for turning a patient in order to avoid pressure sores, said bed system comprising: a first and a second frame each having a top and bottom frame member, said first and a second frame attached in first and second sliding means at the central longitudinal axis of the hospital bed onto which the system is attachable, whereby the sliding means is horizontally movable perpendicular to the central longitudinal axis of the hospital bed; a first and a second actuator connected to said first and second frame via one or more extension rods attached via a lifting device to pivot points provided as joints on the bottom frame member; said first and second frames being pivotally movable around an axis parallel with the length of the bed through the joints provided on the bottom frame member; and a base frame having attachment means for attachment of the bed system to an existing frame of a hospital bed; wherein activation of the first and second actuator moves the pivot points horizontally, whereby said first and second frames are nested to form a sloped support descending towards the longitudinal center line of the bed system.

2. The bed system according to claim 1, wherein the extension rods comprise a scissor lifting device, which by actuation lifts the frame in the pivot point.

3. The bed system according to claim 1, wherein, wherein the first and/or second actuator is based on an electrical actuator attached to the one or more extension rods.

4. The bed system according to claim 1, wherein the control means is programmed to move the first and a second frame up and down, while ensuring a minimum angle therein between of at least 40 degrees.

5. An integrated hospital bed comprising: a hospital bed; and at least one bed system according to claim 1.

6. An integrated hospital bed comprising: a hospital bed; at least two bed systems according to claim 1; wherein longitudinal extension bars are provided to longitudinally extend the frame parts along the length of the bed.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG. 1 is a sectional view of a lifting part of the bed system.

[0026] FIG. 2 is a sectional view of the scissor lifting device, which by actuation lifts the frame in the pivot point.

[0027] FIG. 3 shows how the frame is attached in a joint to ensure correct nesting when lifted by the lifting device.

DETAILED DESCRIPTION OF THE INVENTION

[0028] Referring to FIG. 1 there is shown the lifting part of the bed system (1) that is ready to be attached to a hospital bed for turning a patient in order to avoid pressure sores. The figure shows scissor lifting device, which by actuation lifts the frame in the pivot point. An actuator is connected to the frame via one or more extension rods activating the scissor lifting device. Control means (not shown) are provided for moving the frame.

[0029] FIG. 2 shows the embodiment of FIG. 1 in more detail to further illustrate the mechanism of the scissor lifting device.

[0030] In FIG. 3 there is shown how the first (2) frame is attached in the first (20) sliding means at the central longitudinal axis of the hospital bed onto which the system is attached. When the first (2) frame is nested by the scissor lifting device then the first (20) sliding means moves horizontally towards the central longitudinal axis of the hospital bed.