SK5382Y1 - Anti-bedsore bed - Google Patents

Abstract

In longitudinal beams (9) of anti- bedsore bed frame, shafts (1) are fulcrumed mounted and equipped with worm wheels (8), fastened on at least one end of shafts (1), engaging with the worm (3) fulcrumed mounted in legs (10) of anti-bedsore bed frame. Shafts (1) are equipped with a set (41) of eccentrics (4), arranged on shafts (1) next to each other, forming with eccentrics (4) on adjacent shafts (1) rows (42) of eccentrics (4) and, in the same time, points of the maximal eccentricity of adjacent eccentrics (4) in separate sets (41) are angularly displaced advantageously of an angle of 180 DEG.

Description

Technical field

The technical solution concerns the anti-decubitus bed and belongs to the area of medical and rehabilitation technology.

BACKGROUND OF THE INVENTION

Patients with long-term bedding with limited mobility may develop pressure sores as a result of continuous pressure on local areas of the body and thus insufficient local blood supply to the skin. If pressure ulcers are not detected in time, they can have far-reaching consequences in the form of infection of the affected tissues and consequently of a general infection of the body. Special hospital beds are used to prevent pressure sores, which allow alternate cyclical support of the lying patient at different points of his body.

There is a well-known hospital bed, which consists of four individually foldable grid grates, whose positioning is provided by four electric motors. Furthermore, a hospital bed is known where a lying patient is carried by air bags. The air bags are arranged in five different sections for supporting the head, torso, seat, thighs and calves, each section equipped with its own air pressure control valve. U.S. Pat. No. 4,999,861 discloses a therapeutic bed consisting of a set of adjustable slats, the vertical movement of which is provided by an eccentric. Stroke frequency is controlled manually using the crank. Manual lifting of the slats is a significant disadvantage of this bed. U.S. Pat. No. 5,233,712 discloses a massage bed comprising two sets of slats, wherein one set of slats is vertically displaceable relative to the other set of slats by means of a slide on an inclined plane. The control is again manual and requires continuous operation during a continuous periodic cycle.

The disadvantages of the known anti-decubitus bed solutions lie in the imperfect protection against bedsores, especially when the patient is lying on the bed for several months, since they do not sufficiently support blood circulation and lymph flow.

The essence of the technical solution

These drawbacks are largely eliminated by an anti-decubitus bed comprising a frame formed by longitudinal beams and legs according to the present invention, which is characterized in that in the longitudinal beams of the frame rotatably mounted shafts are provided with worm wheels mounted at least at one end of the shafts engaged with rotary screw mounted in the frame legs. The shafts are provided with a set of eccentrics arranged on the shafts side by side so as to form rows of eccentric elements with eccentric elements on adjacent shafts in the longitudinal direction of the bed grate, the maximum eccentricity points of adjacent eccentrics in individual sets are preferably adjacent shafts belonging to the same row of eccentrics is angularly rotated so that the points of maximum eccentricity of the eccentrics lie on a sinusoid-shaped curve.

It is also an object of the invention that the eccentrics are rotatable housings encased in a soft and flexible coating.

An advantage of the anti-decubitus bed according to the invention is better alternating relief of support of the patient's body while massaging and supporting the flow of blood and lymph. This is achieved by rotating the shafts on which the eccentrics are mounted so that adjacent eccentrics, both in sets on individual shafts and in individual rows formed by eccentrics of adjacent shafts, are angularly rotated relative to one another. The soft and flexible capsule coating adapts to the body surface profile according to the intensity of the load, and by rotating the eccentrics, in addition to relieving the relief of the patient's body support, the patient's massage also facilitates blood circulation and lymph flow. The massage can be continuous or cyclical. The adjustment of the rotation speed of the shafts and thus the intensity of the massage can be continuously adjusted according to the requirements of the attending physician.

BRIEF DESCRIPTION OF THE DRAWINGS

The technical solution will be explained in more detail by means of the drawing, in which FIG. 1 shows a top view of the anti-decubitus bed, FIG. 2 shows a longitudinal section A-A of FIG. 1 and FIG. 3 is a cross-sectional view of FIG. Second

SK 5382 Υ1

Example of technical solution

The anti-decubitus bed consists of a frame formed by longitudinal beams 9 to which the legs 10 are attached. In the longitudinal beams 9 of the frame, the shafts 1 forming the bed grate are rotatably mounted. The shafts 1 are provided with worm wheels 8 mounted on one of the ends of the shafts 1. Inside the longitudinal beams 9 there is a screw 3 rotatably mounted in the legs 10 of the bed grate. To one end of the screw 3 is connected a drive unit 2 formed by an electric motor and a gearbox. The worm gears 8 engage the screw 3. Each shaft 1 is provided with a set 41 of eccentric 4 arranged on the shafts 1 side by side so that with the eccentric 4 on adjacent shafts 1, in the longitudinal direction of the bed grate, 42 the eccentricity of the adjacent eccentrics 4 in the individual sets 41 are angularly rotated 180 ° and the maximum eccentricity of the eccentrics 4 on adjacent shafts 1 belonging to the same row 42 is angularly rotated so that the maximum eccentricity points of eccentrics 4 in the respective row 42 lie . On the eccentrics 4, the rotatable housings 5 are wrapped with a soft and elastic coating 6. The surface of the bed base of the anti-decubitus bed is covered with a sheet 7.

The drive unit 2 drives a screw 3, the rotational movement of which is transmitted via the worm wheels 8 to the shafts 1. As the shafts 1 and the eccentrics 4 rotate, the sleeves 5 wrapped in the cover 6 move along a circular path while the sleeves 5 rotate on the eccentrics 4. movement of the sleeves 5. As a result of such movement of the sleeves 5, the patient is alternately supported at various points in his body and at the same time a permanent massage, favorably affecting the flow of blood and lymph in the patient's body.

Claims (2)

PROTECTION REQUIREMENTS An anti-decubitus bed comprising a frame formed by longitudinal beams and legs, characterized in that the longitudinal beams (9) of the frame have rotatably mounted shafts (1) equipped with worm wheels (8) mounted at least at one end of the shafts (1). in engagement with the screw (3) rotatably mounted in the legs (10) of the bed base frame, the shafts (1) being equipped with a set (41) of eccentric cams (4) arranged on the shafts (1) side by side such that eccentric cams (4) on adjacent shafts (1) form rows (42) of eccentrics (4), whereby the maximum eccentricity points of adjacent eccentrics (4) in individual sets (41) are angularly rotated preferably by 180 ° and maximum eccentricity points of eccentrics (4) on adjacent shafts (1) belonging to the same row (42) of the eccentrics (4) are angularly rotated so as to lie on a sinusoidal curve. Anti-decubitus bed according to claim 1, characterized in that the eccentric sleeves (4) are rotatably mounted sleeves (5) wrapped with a soft and flexible coating (6).