KR20020044132A - Adjustable platform for a bed - Google Patents

Abstract

A bed, couch or trolley platform device consists of a back 2, a seat 14, a thigh 15 and a calf 18. The backrest 14 and thigh 15 are pivotally connected to the bed frame 4 to raise and lower the back 14 and thigh 15. Rotation of the backrest and thigh portion is possible to move away from each other in the longitudinal direction along the frame as the back portion and thigh portion are raised in a horizontal position. Complementary plates 13 and 20 compensate for gaps resulting from positional movement of the dorsal portion 14 and thigh portion 14 respectively. The back also has an additional panel 6 arranged to slide upwards along the back as the platform rises in an amount equal to the length of the contact path of the human skin when sitting, providing pelvic compression and tissue This results in preventing shear.

Description

Adjustable platform for a bed

Various types of beds, trolleys or beds have evolved to provide comfort to the user. In particular it is adapted to the person seated thereon. Complications such as bedsores can develop if a patient who is not capable of moving to maintain a comfortable posture is lying in bed for a long time. It is known in the art to provide beds with a platform that can be moved at various angles and shapes to facilitate the patient's lack of movement.

Each of these beds has a back section that supports the human upper body, a seat section that supports the human buttocks, a thigh section that supports the human thighs, and a calf that supports the human calf. Provide a calf section.

In these beds, the balance of human weight is supported by the sacro / coxxygeal, and the hip region increases markedly with the back angle. This is due to the combination of the human body sliding down the support surface with a "pinching" motion when the thighs and knees are up. This increases the distortion due to the compression and shear force of soft tissue in this area and increases the risk of pressure sore formation.

The degree of sliding and "deflection" is related to both the shape of the bed and the thickness of the support surface, for example the thickness of the mattress between the person and the bed surface. In other words, the greater the thickness of the support surface, the greater the degree of sliding of the person, and the worse the adjustment of the bed hinge point to the position of the human joint. The importance of this problem is increased because it involves frequent use of strong or soft compression to shrink the mattress to cause longitudinal movement of the person as increasing the backrest angle for good care. In addition, if the lower limb length of a person is long, the degree of misalignment between the bed hinge point and the position of the human joint is further increased.

The basic shape of the bending of the human body in the half-bending position is that the length of the contact path of the skin along the back extends (generally up to 150 mm) and joints, especially in the area of the sacroiliac / coccal bone where the length of the support surface does not extend. In the region bounded by the bed part it is often contracted due to self-press. This results in the human's pelvis moving to the mattress in an area that has already undergone high local contact compression as the dorsal angle is increased.

FIELD OF THE INVENTION The present invention relates to a bed, couch, trolley or similar kind of platform, in particular pivoting to provide shapes corresponding to the various conditions of the human leg and upper body. It relates to a platform formed of a panel set.

1 is a schematic diagram illustrating one embodiment of a platform according to the present invention;

2 is a rear view of the dorsal part in FIG. 1;

3 is a schematic diagram showing another embodiment of a platform according to the present invention;

Figure 4 is a schematic diagram showing the thigh and calf portion according to the present invention.

5 is a plan view showing a platform according to the present invention.

It is therefore an object of the present invention to provide a platform having a hinge point of several bed portions which minimizes the "flick" operation and which closely matches the joint position of the human body supported by it.

Accordingly, the present invention provides a support platform for a bed that is supported on a frame and has a back, seat, thigh and calf. At least two parts of the back and the thigh are pivotally connected to the frame. The pivot axes of the dorsal and thigh portions that are moved in position are respectively arranged such that they can be moved in the longitudinal direction so that the dorsal and thigh portions are provided individually or together in an inclined state in the horizontal state. The seat portion is pivotally attached thereto and includes a first panel cooperating with the back portion, wherein the back portion is longitudinally moved from the seat portion along the frame with an increasing back angle, so that the first panel The gap prevents the gap generated between the sheet portion and the back portion. In addition, a second panel may be attached to the other end of the seat part to prevent a gap between the seat part and the thigh part. Thus, the first and second complementary panels ensure that the mattresses supported on the platform do not collapse into gaps and minimize enhanced pressure distribution. The folded back and thighs minimize the “jump” motion to provide better interfacial pressure distribution, a more comfortable resting posture, lower abdominal compression and good breathing (due to low pressure into the diaphragm). Also, the movement of the dorsal portion corresponds to the movement of the thigh in order to provide a comfortable "cradle" effect.

The back also includes a third panel arranged to slide upward along him as he is swung in an inclined state. The movement of the third panel allows the mattress plane to be stretched in an amount equal to the length of the contact path of the human back skin with increased back angle, resulting in less tissue distortion and a reduction in "deflection" motion. As such, pelvic compression and shear are minimized.

In addition, the thigh portion is extendable to be adjusted to fit the height of different people. The thigh portion may be more closely extended to fit the platform lying down on the person. As a result, the bed hinge point is rearranged to match the joint position of the human body for better pressure distribution, in particular for pressure distribution on the lower limb of the person supported by it. Similarly, the calf can also extend to more closely align the bed with respect to different human heights.

An example of the present invention will be described with reference to the following reference drawings.

Referring to Figure 1, the platform is formed of several components (2) (14) (15) that can be formed around the human body to meet the needs of the clinical and / or comfort side. (18).

As shown in FIG. 2, one embodiment of a back section assembly consists of a panel 2 which is connected to the frame 1 and the actuator 4 by a link 3. As the actuator 4 extends, the lower end of the back panel 2 slides along the frame 1 by means of a slideblock 5 which slides in a groove formed by the main frame member. The dorsal panel 2 is rotated upward with respect to its turning under the influence of the link 3 pivoting in the frame 1.

A shear panel 6 is mounted to the back panel 2 by a linear slide 7. As the dorsal slides outward along the frame, the front panel 6 is pulled upwards by the operation of the belt 8. The belt 8 is fixed at its lower end to the frame and at its upper end to the shear panel 6. The belt 8 passes through freely rotating pulleys 9 and 10 attached to the back panel 2. As the dorsal slides outward along the frame, the dorsal shear panel 6 moves upward relative to the dorsal panel 2.

As the actuator 4 contracts, the dorsal portion is pulled inwardly along the frame by the sliding block 5 and rotates downward relative to its turning under the action of the link 3. As the dorsal side rotates downward and slides inward, the belt 11 pulls the dorsal front panel 6 downward relative to the dorsal panel 2. This results in that the belt 11, which is fixed to the frame at the head end, passes through the pulley 12 attached to the back panel 2 and then attaches to the back shear panel 6 at its midpoint.

The gap generated between the dorsal front panel 6 and the fixed seat section 15 is blocked by the complementary panel 13 as the dorsal section is erected. The complementary panel 13 is hinged to the stationary seat 15 at point 24 and is located in the rebate in the dorsal front panel 6. As the dorsal shear panel 6 moves away from the seat portion 15, the supplemental panel 13 is hinged relative to its lower end and slides along the rebate in the shear panel 6. Thus, as the dorsal assembly moves away from the fixed seat portion 15, the supplemental panel 13 is seated 15 and the dorsal shear providing support to mattresses and people in that area. The panel 6 is kept in contact with both sides.

As shown in FIG. 3, another embodiment of the back is replaced by a belt 11 having a sliding link 26 and a push rod 27. The sliding link 26 is attached to the lower end of the backrest shear plate 6 and, as the actuator 4 extends, is pulled along the bed axis. The other end of the sliding link 26 is attached with a push rod 27 connected to the lower end of the front panel (6). As the actuator 4 extends, the push rod 7 causes the front panel 6 to slide upward relative to the backrest panel 2. The supplemental panel 13 is superimposed on the front panel 6, and as such the backrest is erected and retracted, the supplemental panel 13 is erected in its usual flat state and the backrest panel of the bed platform ( 6) and the gap between the seat panel 2 is prevented.

The thigh assembly consists of a panel 14 and an actuator 16 connected to the main frame 1 by a link 45. As the actuator 16 extends, the lower end of the thigh panel 14 slides along the frame by the slide block 5 and with respect to its turning under the influence of the link 45 freely pivoting at its end. Rotate upwards. The movement of the thigh 14 can be done simultaneously with any movement of the dorsal 2 to provide a "cradle" effect. In addition, the thigh 14 may move independently.

The calf portion 18 is hinged at one end thereof with respect to the thigh portion 14 and is supported at its other end by an actuator 19. When the thigh 14 is up, it raises the calf 18. The angle of the calf 18 with respect to the horizontal is controlled by the expansion / contraction of the actuator 19 which is free to swing at its end.

The thigh / calf support panel 17 is fixed to the upper surfaces of the thigh 14 and the calf 18. The support panel 17 may be integrally formed with a continuous flexible hinge point across its width to bend about the hinge point between the thigh and calf.

As the thigh 14 is erected, the gap generated between the thigh 14 and the fixed seat 15 is blocked by the supplemental panel 20. The complementary panel 20 is hinged to the seat portion 15 at point 21 and is located in the rebate of the thigh / calf support panel 17. As the thigh 14 moves away from the seat 15, the supplemental panel 20 pivots about its lower end and slides along the rebate of the support panel 17. Thus, as the thigh 14 assembly moves away from the stationary seat 15, the supplemental panel 20 provides a seat 15 for providing support to the mattress and the person in its area; The thigh / calf support panel 17 is held in contact with both sides.

The thigh panel 14 and the calf panel 18 may be connected by the flexible portion 25.

Both sides of the thigh panel 14 and the calf panel 18 may be stacked on the structures 31 and 32, respectively. Actuator 22 and contraction actuator 23 may be used to adjust the length of thigh 14 and calf 18, respectively. By the same amount of expansion of the actuator 22 and the contraction actuator 23, the thigh and calf hinge points move further to the foot end of the bed, without increasing the overall length of the bed platform. 14) increase effectively. The flexible portion 25 between the thigh portion 14 and the calf portion 18 allows the thigh / calf joint operation to hinge at some point between the minimum and maximum settings. In a similar manner, as the actuator 22 is retracted in the same amount and the actuator 23 is expanded, the actual length of the thigh is reduced without affecting the entire length of the bed platform. On the other hand, only the thigh length is changed by expanding and contracting the actuator 22.

The sheet portion 15 and the two complementary panels 13 and 20 may be formed of a single molding having a flexible hinge. The actuator 19 may be replaced with a gas spring.

Although the present invention has been described with respect to a bed, it will be apparent that the platform can be applied to a multi-section planar support for supporting a person in a trolley, couch, table or the like.

Claims (8)

In the support platform for the bed, The platform is supported on the frame, and has a back, seat, thigh and calf, at least the back being pivotally connected to the frame, the pivot of the back being pivoted at its back horizontally. Arranged to be longitudinally moved along the frame so as to be longitudinally moved along the frame and pivoted in an inclined state, wherein the back includes a first panel pivotally attached thereto and cooperating with the back Thus, as the dorsal portion is moved longitudinally along the frame from the seat portion with an increase in the dorsal angle, the first panel prevents a gap occurring between the seat and the dorsal portion. Support platform for bed. The method of claim 1, The thigh portion is pivotally connected to the frame, the pivot axis of the thigh portion is arranged to be moved away from the dorsal lengthwise as the thigh portion is pivoted from the horizontal state to the inclined state, the seat portion Rotatably attached to one end of the seat portion adjacent to the thigh portion and between the seat and the thigh portion as the thigh portion is moved longitudinally from the seat portion along the frame with increasing angle of the thigh portion. A second panel cooperating with the thigh to prevent a gap occurring Support platform for the bed. The method of claim 2, Movement of the dorsal portion causes corresponding movement of the thigh portion Support platform for the bed. The method according to any one of claims 1 to 3, The back includes a third panel arranged to slide along the top side as the back turns in an inclined state. Support platform for the bed. The method according to any one of the preceding claims, The sheet portion and the first and second panels are formed of a single molding body. Support platform for the bed. The method according to any one of the preceding claims, The thighs are extensible so that they can be adjusted for the height of different people Support platform for the bed. The method according to any one of the preceding claims, The calf is extensible so that it can be adjusted with respect to the height of different people Support platform for the bed. The method according to claim 6 or 7, The thigh and calf are joined by a flexible panel Support platform for the bed.