JPH0367699B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a floor support mechanism for a bed for a patient or the like.

(Prior art and its problems) In body support devices such as pinerests, when lying supine for a long period of time, blood flow in capillaries is obstructed by the pressure between the body support surface and the contact area, causing cell necrosis. This is the main reason why pressure ulcers are likely to occur. Therefore, for patients who are at risk of developing pressure ulcers,
For example, patients are turned over at intervals of about 2 hours, or so-called body position change, and this body position change has been proven to be highly effective in preventing pressure ulcers.

Such a change in position is normally performed by one caregiver while supporting the patient's weight, but this is a task that requires considerable force and places an extremely heavy physical burden on the caregiver. In particular, in the case of home-based treatment, most of the caregivers are middle-aged and elderly women, and the above-mentioned repositioning work is a heavy burden, so they are forced to cut corners, resulting in severe pressure ulcers. This often causes problems for not only the patient but also the caregiver. For this reason, there is a need for a bed that allows for easy body position changes.

The present invention has been made in view of the above points, and it is an object of the present invention to provide a floor support mechanism for a bed that allows for easy body position changes.

(Means for Solving the Problems and Embodiments) The structure of the present invention for achieving the above-mentioned object will be explained with reference to drawings corresponding to embodiments. The floor plate 1 of the bed is divided into three parts in the width direction and connected to each other in a flexible manner, and the central floor part 1b is attached to the floor support 3 so as to be swingable in the width direction using the central part as a fulcrum 2b. It is rotatably supported on a fixed swinging support arm 4, and the floor portions 1a, 1c on the end sides are configured to be expandable and contractible in the width direction, and the floor portions 2a, 2c on the end sides are configured to be freely expandable and contractible in the width direction.
is rotatably supported on the floor support body 3 to constitute a floor support mechanism for the bed.

Further, as shown in FIG. 3, the present invention divides the floor portion 1 of the bed into three parts in the width direction, connects each part so as to be flexible, and connects each end of the central floor part 1b to a floor support. The floor portions 1a and 1c on the end sides are configured to be extendable and retractable in the width direction. At the same time, appropriate positions 2a and 2c on the end sides are rotatably supported on the floor support 3 to constitute a floor support mechanism for the bed.

(Operation and Examples) Next, the operation of the present invention will be explained with reference to figures showing examples.

First, in the configuration shown in Fig. 2, a indicates the normal supine state, and all the floor parts 1a, 1b, 1
c is supported in one plane. Means for providing such support may be, for example, a swinging support arm 4 as described later, or a means for supporting the elevating and lowering drive means 6 by interposing an elevating and lowering drive means 6 between the floor plate 1 and the floor support 3. It is appropriate to use it as a means.

Therefore, when changing the body position of the patient 7 lying supine on the floorboard 1, after releasing the above-mentioned support, the swing support arm 4 first swings counterclockwise as shown in b. When the central floor portion 1b is operated as shown in FIG.
The center floor section 2b pushes the left end floor section 1a, rotates this floor section 1a counterclockwise around the fulcrum 2a, and tilts it with the right side upward. At the same time, it tilts with its right side down and moves to the left as a whole. Due to such movement of the center floor portion 1b, the right end floor portion 1c is inclined with the left side downward and extends to the left. As mentioned above, since the central floor portion 1b tilts while moving to the left, the lower floor portion, that is, floor portion 1 in this case,
The connection position with c gradually moves to the center,
The inclination angle of the floor portion 1b can be easily increased.

Such movement of the floor portions 1a, 1b, and 1c allows the user, such as the patient 7, lying supine on the floor plate 1, to turn over in the direction of the inclination of the central floor portion 1b. At this time, the floor portion 1c on the right end side and the floor portion 1c in the center are undulating in a valley shape, so
The patient 7 slides along the central floor portion 1b in an oblique direction and stops upon contacting the right end floor portion 1c, thereby being able to safely turn over. When the patient 7 is held at a substantially right angle to the horizontal plane in this manner, when the swinging support arm 4 is moved to swing clockwise while supporting the patient 7 in this state, the central floor portion 1b is The fulcrum 2b at the center moves along the rotation locus of the swinging support arm 4, and the floorboard 1 undergoes a movement opposite to that described above and returns to its original flat state. In a flat state, the patient can be placed in a state where the patient is raised up at a substantially right angle to the horizontal plane, that is, in a lateral recumbent position.

Next, contrary to the above, in the state a, the swing support arm 4
When oscillates clockwise, the center floor section 1b pushes the right end floor section 1c, which is not shown in the figure, and this floor section 1c becomes the fulcrum 2c.
The central floor portion 1b is rotated clockwise around the center to tilt with the left side upward, and itself is tilted with the left side downward, and the central floor portion 1b as a whole moves to the right. Due to this movement of the central floor portion 1b, the left end floor portion 1a is inclined with the right side facing downward and extends to the right. By returning the floor plate 1 to its original planar state through the reverse operation described above, the patient 7 can be placed in a lateral recumbent position with the opposite body side facing downward.

The aforementioned movement of the floor portions 1a, 1b, 1c is driven by, for example, configuring the swinging support arm 4 as a lifting/lowering drive means, that is, configuring the swinging support arm 4 to be swung by an appropriate drive mechanism. Alternatively, in addition to the swinging support arm 4, an elevating drive means 6 may be interposed between the floor plate 1 and the floor support 3 to be driven. The elevating drive means 6 can be configured as a pneumatic bellows type mechanism, as shown in FIGS. 1b and 5, for example.

Next, in the configuration shown in FIG.
When the support rod 5a on the left side of the figure is rotated counterclockwise from the state a in which a, 1b, and 1c are supported in one plane, as shown in b,
Since the left end of the central floor portion 1b rises along the rotation locus of the support rod 5a, the central floor portion 1b pushes the left end floor portion 1a and rotates this floor portion 1a counterclockwise around the fulcrum 2a. It rotates to tilt with the right side upward, and itself tilts with the right side downward, and moves to the left as a whole.
Due to such movement of the center and floor portion 1b, the floor portion 1c on the right end side is inclined with the left side downward and extends to the left. Further, the right support rod 5b moves together with the central floor portion 1b, rotating counterclockwise and extending. In this mechanism, as mentioned above, the central floor portion 1b as a whole moves to the left and tilts, so the connection position with the lower floor portion, that is, the floor portion 1c in this case, gradually moves toward the center. The inclination angle of the floor portion 1b can be easily increased.

This movement of the floor portion 1b allows the user, such as the patient 7, who is lying supine on the floor plate 1, to turn over in the direction of the inclination of the central floor portion 1b, and at this time, the right end side Since the floor portion 1c and the central floor portion 1b are undulating in a valley-like manner, the user can safely turn over in the same way as described above. After the patient 7 is placed at a nearly right angle to the horizontal plane in this way, when the left support rod 5a is rotated clockwise while supporting the patient 7 in this state, the floorboard 1 is moved in the opposite direction as described above. Through these operations, the patient 7 returns to the original planar state, and thus the patient 7 can be brought into a state where the floorboard 1 is raised substantially perpendicularly to the horizontal surface while the floorboard 1 is in a planar state, that is, into a lateral recumbent state.

Next, when the support rod 5b on the right side in the figure is rotated clockwise from the state a, contrary to the above, the right end side of the center floor portion 1b is rotated clockwise. , the center floor section 1b pushes the right end floor section 1c, rotates this floor section 1c clockwise around the fulcrum 2c, and tilts it with the left side upward. , itself is inclined with the left side downward, and this central floor portion 1b moves to the right as a whole. Due to such movement of the central floor portion 1b,
The floor portion 1c on the left end side is inclined with the right side facing downward and extends to the right. Further, the left support rod 5a moves together with the central floor portion 1b, rotating clockwise and extending. By returning the floor plate 1 to its original planar state through the reverse operation described above, the patient 7 can be placed in a lateral recumbent position with the opposite body side facing downward.

The above movement of the floor part is driven, for example, by the support rod 5.
a, 5b may be configured as an elevating drive means, that is, the support rods 5a, 5b may be configured to be rotated by an appropriate drive mechanism;
Separately from the mechanism described above, an elevating and lowering drive means 6 may be interposed between the floor plate 1 and the floor support 3 to be driven, similar to the above-mentioned mechanism. The lifting drive means 6 can also be configured as a pneumatically actuated bellows mechanism as shown in FIG. 1b or FIG. 5, for example. Further, the support rods 5a and 5b, as shown in FIG. 3c, for example, are composed of an outer cylinder member 8 and an operating member 9 that is telescopically fitted to the outer cylinder member 8. By engaging and supporting the long groove 10 provided on the outer cylinder member 8 with the support pin 11 provided on the outer cylinder member 8, the outer cylinder member 8 can be configured to be expandable and retractable with a predetermined length as the lower limit.

Next, the end-side floor portions 1a and 1b of the above-mentioned front and latter floor support mechanisms are, for example, as shown in FIGS.
As shown in the figure, the inner and outer floor portions can be made expandable and retractable by an appropriate mechanism such as a drawer mechanism configured to be movable relative to each other using bearings 12. The width of the central floor portion 1b is preferably approximately the width of a human torso, but may be set as appropriate based on this width.

Next, the floor plate 1 to which the front and latter floor support mechanisms are applied
may be the entire floorboard of the bed, or may be a part of the patient's lower back. Here, the latter floor support mechanism can move the position of the body side part in the state in which the central floor portion 1b is most inclined to the back side of the body, compared to the former mechanism. The floor plate 1 in the former mechanism is the part of the bed corresponding to the back A of the patient 7, and the floor plate in the latter mechanism is the part corresponding to the waist B, as shown in FIG. By configuring the bed, the patient's lower back can be pulled further back than the patient's back when the patient is in the above-mentioned state of turning over in bed, making it possible to turn over and make it difficult for the patient to fall over.

(Effects of the Invention) As described above, the present invention provides for the floorboard of the bed to be
It is divided into sections and connected to each other so that they can be bent freely, and the central floor section as a whole is moved upward in the direction of the slope, allowing it to tilt freely in relation to the other floor sections, making it easy to increase the angle of inclination. I can do it,
Therefore, due to the large inclination of the central floor section, the nurse can easily turn the patient over in the direction of the inclination of the central floor section. The floor part is undulating so that the connecting part moves towards the center and forms a valley.
This has the effect of allowing you to safely turn over in your sleep. Therefore, in this way, the patient can be made almost perpendicular to the horizontal plane, and then, while supporting the patient in this position, the end floor sections and the central floor section are brought into a flat state, so that the floor plate In this way, the present invention allows a single caregiver to easily and easily change the position of a patient lying supine on a bed. This has the effect of greatly contributing to the prevention of pressure ulcers. By configuring a bed by rationally combining the front and latter floor support mechanisms, the patient's lower back is pulled backwards than the back when the patient turns over in bed. This has the effect of making it difficult to toss and turn in bed.

[Brief explanation of drawings]

1A and 1B are an explanatory plan view and an explanatory side view corresponding to an embodiment of a bed constructed by applying the floor support mechanism of the present invention, and FIGS. FIGS. 3a, b, and c are explanatory cross-sectional views corresponding to other embodiments of the floor support mechanism for a bed according to the present invention,
FIGS. 4a and 4b are an explanatory plan view and an explanatory cross-sectional view showing an embodiment of the floor portion, and FIGS. FIG. 3 is a corresponding explanatory cross-sectional view. Code, 1... Floor plate, 1a, 1b, 1c... Floor part, 2a, 2b, 2c... Fulcrum, 3... Floor support, 4... Swing support arm, 5a, 5b... Support rod,
6... Lifting drive means, 7... Patient, 8... Outer cylinder member, 9... Operating member, 10... Long groove, 11... Support pin, 12... Bearing.

Claims (1)

[Scope of Claims] 1. The floor plate of the bed is divided into three parts in the width direction and connected to each other so as to be flexible, and the central floor part is swingable in the width direction on the floor support using the central part as a fulcrum. The floor part on the end side is configured to be expandable and contractible in the width direction, and the appropriate position on the end side is rotatably supported on the floor support body. A floor support mechanism for a bed featuring: 2. A floor support mechanism for a bed, characterized in that the swinging support arm of item 1 is configured as an elevating drive means. 3 The floorboard of the bed is divided into three parts in the width direction, each part is connected to each other in a flexible manner, and both ends of the central floor part are rotatably supported on a floor support, and can be expanded and contracted to a predetermined length as a lower limit. The floor portion on the end side is configured to be expandable and contractible in the width direction, and a suitable position on the end side is rotatably supported on the floor support body. Floor support mechanism for the bed. 4. A floor support mechanism for a bed, characterized in that the telescoping rod of item 3 is configured as a lifting/lowering drive means. 5. A floor support mechanism for a bed, characterized in that an elevating drive means is interposed between the floor plate and the floor support according to item 1 or 2. 6. A floor support mechanism for a bed, wherein the elevating and lowering drive means according to item 5 is constructed as a pneumatically operated bellows type mechanism. 7. A floor support mechanism for a bed, wherein the floor plate according to item 1 is a part of the bed corresponding to the back of a supine user. 8. A floor support mechanism for a bed, wherein the floor plate according to item 3 is a part of the bed corresponding to the waist of a supine user.