JP2006288451A - Posture retaining means - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a posture retaining means which is provided with a mechanism for fixing the shape of itself in a bent state in order to keep the body in a specified posture and prevents the load of the body from being concentrated on a specified part even without a separate cushion material. <P>SOLUTION: The posture retaining means 1 is provided with an air permeable inner bag filled with many granular bodies and an air impermeable outer bag inside which the inner bag is sealed as a mechanism main body 3, and the shape is fixed by the adhesion of the respective granular bodies by pressure reduction inside the outer bag. The inner bag is provided with a structure for which a plurality of granular body filling chambers are planarly connected vertically and/or horizontally, a soft synthetic resin foamed body 6 is stuck to at least one surface of the mechanism main body, and a plurality of vertically and/or horizontally extended recessed parts 61 are formed on the outer surface of the synthetic resin foamed body. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention has a mechanism that is fixed in a bent state in order to hold the body in a specific posture so that the patient or the like can keep the same posture for a long time without feeling pain. It is related with the posture maintenance auxiliary tool for doing.

In order to perform various treatments for patients at hospitals, etc., it consists of a breathable inner bag with many granular bodies sealed and a non-breathable outer bag sealed inside this inner bag, and the inside of the outer bag is decompressed Thus, it is performed to fix a patient in a specific posture using a posture holding auxiliary tool having a mechanism whose shape is fixed.
If such a posture maintenance aid is used, the patient can maintain the same posture with almost no use of muscle strength, which is useful for patients and doctors.
Japanese Patent Laid-Open No. 2-26439

However, such a posture maintenance assisting tool is useful for fixing the posture, but depending on the posture, the body load may be concentrated at one point, and in order to disperse the body load, it is necessary to apply a cushion material separately. . In addition, if the cushioning material is simply attached to the outer bag, a large displacement stress occurs at the interface between the outer bag and the synthetic resin foam when the posture maintenance aid is bent. There is a concern that the body may come off the outer bag.
The present invention has a mechanism that is fixed in a bent state in order to hold the body in a specific posture, and the load on the body is applied to a specific part without a separate cushioning material. An object of the present invention is to provide a posture support aid that prevents concentration.

The posture maintaining auxiliary tool of the present invention has a breathable inner bag filled with a large number of granular materials and a non-breathable outer bag with the inner bag sealed inside as a mechanism main body, A posture holding auxiliary tool whose shape is fixed by bringing the granular material into a close contact state, and the inner bag has a structure in which a plurality of granular material filling chambers are connected in a vertical and / or horizontal plane, and the mechanism main body. A soft synthetic resin foam is affixed to at least one surface, and a plurality of recesses extending in the vertical and / or horizontal directions are formed on the outer surface of the synthetic resin foam.
The synthetic resin foam is preferably a low resilience polyurethane foam.
It is preferable that the posture maintenance aid is covered with a water-impermeable cover.

  The posture maintaining aid of the present invention has a soft synthetic resin foam disposed on one surface of the mechanism main body, so that the body pressure dispersibility with respect to the body is good and, of course, a recess formed in the synthetic resin foam. Because the repulsive force of the bent synthetic resin foam is reduced, it is difficult to cause the problem that the synthetic resin foam is peeled off from the mechanism body, and it is easy to shift the posture support aid to the bent state. It is.

  If low resilience polyurethane foam is used as the synthetic resin foam, even if a large displacement stress occurs at the interface between the mechanism body and the synthetic resin foam at the bending stage, the resilience is small due to low resilience. The deviation stress immediately decreases, and it is difficult to cause the problem that the synthetic resin foam is peeled off from the mechanism main body, and it is easy to shift the posture holding auxiliary tool to the bent state. And if low resilience polyurethane foam is used, the body pressure dispersibility with respect to a body is also favorable.

  When the posture holding auxiliary tool is covered with a water-impermeable cover, it is possible to prevent a decrease in the adhesive force between the synthetic resin foam and the mechanism main body due to sweat or the like.

  Embodiments of the posture maintaining aid of the present invention will be specifically described below with reference to the drawings. As shown in FIGS. 1 and 2, the posture holding assisting tools 1 and 2 of the present invention have a structure in which a soft synthetic resin foam 6 is adhered to the surface of the mechanism body 3 and these are covered with a cover 7. . The synthetic resin foam may be attached to both surfaces of the mechanism main body. For example, as shown in FIG. 3, the posture holding auxiliary tools 1 and 2 are bent so as to correspond to the body shape, and then the inside of the outer bag (inside the mechanism main body) is depressurized, so that the posture holding auxiliary tools 1 and 2 are in a bent shape. It is fixed and used as an auxiliary tool that keeps the body in the same posture.

  The mechanism main body 3 includes a breathable inner bag 4 having a structure in which a plurality of granule filling chambers are arranged in a plane and / or side plane, and a non-breathable outer bag 5 in which the inner bag is sealed. The granule filled in the granule filling chamber has a basic configuration. Moreover, the opening / closing valve 9 is attached to the outer bag, and the pressure is reduced by discharging the air in the outer bag with a pump through the opening / closing valve. And the posture maintenance aid of the present invention can be bent into a shape corresponding to the body shape because the granular material in the inner bag flows in the natural state, but under reduced pressure, each granular material does not move closely. Therefore, the shape is fixed.

  Various kinds of plastic beads are preferably used for the granular material 8, but in order to reduce the weight, it is preferable to use polystyrene foam beads or polyethylene foam beads. The size of the granular material is not particularly limited, and there is no problem if a particle having a particle size of 0.3 to 5.0 mm is used. The specific gravity of the beads is preferably 0.02 or more so as not to be deformed by repeated use.

In the inner bag 4, a plurality of granular material filling chambers indicated by reference numerals 41 and 42 are arranged in a plane in a vertical and / or horizontal manner so that variations in thickness (height) due to uneven distribution of granular materials do not occur. It has a structure. The inner bag has a structure in which a granular material filling chamber is filled with granular materials, and a plurality of cylindrical granular material filling chambers are connected side by side as shown in FIG. 6, or a plurality of inner granular bags as shown in FIG. It becomes a structure where the cylindrical granular material filling chambers are connected vertically and horizontally. The material of the inner bag is preferably a fiber-based material, and fabrics such as knitted fabric, woven fabric, and non-woven fabric are used. Among them, a fabric using polyurethane-based elastic fibers is preferable because of its excellent stretchability.
The granule filling chamber is preferably formed by partitioning two overlapped fabrics by sewing, and in this way, the angle between adjacent granule filling chambers can be easily changed. It becomes easy to bend when it is used as a posture maintenance aid.

  It is preferable that the height H of the granule filling chamber in a natural state (a state where no load such as reduced pressure or load is applied) when the granule filling chamber is filled with the granule is 40 to 80 mm. If the height is less than 40 mm, the shape of the posture maintenance aid itself may not be maintained due to body load, and if it exceeds 80 mm, it may be difficult to shift the posture maintenance aid itself. Moreover, it is preferable that the length L of the short side of the length or width of the continuous direction of the granular material filling chamber in the natural state is 150 to 300 mm. If the length is less than 150 mm, it is difficult to form a bent shape at the time of decompression, and if it exceeds 300 mm, the distribution of the granular material tends to be biased.

  The outer bag 5 is preferably made of a material that is harder to stretch than the material of the inner bag, and has flexibility such as poly (vinylidene chloride), polyethylene, polypropylene, polyester, polyamide, and polyurethane formed by a calendar method, an extrusion method, or the like. Film is used. The outer bag is produced, for example, by laminating two of these films and fusing the periphery. The open / close valve 9 is attached to the outer bag directly or through a tube or the like. The inside of the outer bag is exhausted through an on-off valve to be in a reduced pressure state, and the reduced pressure state is maintained by closing the on-off valve.

The cover 7 may be made of a breathable material such as a woven fabric or a knitted fabric, but since it is used by many patients, it is preferably made of a water-impermeable cover. In addition, if a water-impermeable cover is used, it is possible to prevent a decrease in the adhesive force between the synthetic resin foam and the mechanism main body due to sweat or the like.
The water-impermeable cover is preferably made of a material in which a fiber-based material is used as a base material and a resin-based or rubber-based thin film is laminated as a surface layer because it is excellent in touch and durability. Examples of such materials include vinyl chloride leather, rubberized cloth, polyurethane synthetic leather, etc. Among them, a thin film is formed using a knitted fabric, a crimped yarn or a fabric formed of crimped fibers as a base material. Polyurethane synthetic leather using polyurethane is preferred because of its high stretchability.

  Examples of the soft synthetic resin foam 6 include polyurethane foam, polyethylene foam, and the like, but polyurethane foam is preferable because it has excellent body pressure dispersibility. A low resilience polyurethane foam having is preferable. The low resilience polyurethane foam has a glass transition point higher than that of a general polyurethane foam so as to be at or near room temperature. For this reason, the low resilience polyurethane foam has a much smaller deformation force than the ordinary polyurethane foam, even if the deformation of the polyurethane foam itself is large. It has the property of supporting evenly. And since the low resilience polyurethane foam has such properties, even when the body holding auxiliary tool is bent, the displacement stress with the mechanism main body is small.

  A plurality of recesses extending vertically and / or horizontally are formed on the outer surface of the synthetic resin foam. Examples of the shape of the recess include a V-shaped section (FIG. 7), a semicircular section (FIG. 8), and the like. In addition, the concave portion may be formed by repeating concave convex portions in a houndstooth pattern in plan view formed by profile processing as shown in FIG. 10 (FIG. 9). Such a pull-file processed synthetic resin foam has high durability because the load applied to the synthetic resin foam does not concentrate on the recess when the body holding auxiliary tool is bent.

  The thickness T of the synthetic resin foam is not particularly limited, but in the case of the synthetic resin foam in which the concave portions as shown in FIGS. 7 and 8 are formed, the body pressure dispersibility is good as 10 to 40 mm. It is preferable that the body load is not concentrated on a part of the body. The depth D of the recess is preferably 20 to 60% of the thickness T, and the width W of the recess is preferably 5 to 15 mm. If the depth and width of the recess are too small, not only the bendability of the body support aid itself will not be improved, but also the displacement stress between the mechanism body when the body support aid is bent cannot be reduced. If the depth or width of the recess is too large, the load applied to the synthetic resin foam will be concentrated in the recess when the body support aid is bent, and this part may be destroyed, and the body pressure dispersibility is impaired. May be.

  In the case of the synthetic resin foam subjected to pull-file processing as shown in FIG. 9, the thickness T is set to 20 to 60 mm, the depth D of the recess is set to 40 to 70% of the thickness T, and the distance between the adjacent recesses is 20 It is preferable to make the body pressure dispersibility good by ˜40 mm.

(Example 1) Two stretchable knitted fabrics using polyurethane-based elastic fibers are overlapped, sewn on the three sides of the rim, and sewn so as to partition the inside, so that five as shown in FIG. An inner bag having a granular material filling chamber was produced. Each granule filling chamber was filled with polystyrene foam beads having an average specific gravity of 0.03 and an average particle diameter of 0.5 mm, and then one side opened was sewn. The dimensions of the outer shape in the natural state are height 60 mm × length 0.8 m × width 1 m, and the length of one granule filling chamber in the continuous direction is 200 mm.

Next, two polyurethane films (300 μm × 0.9 m × 1.1 m) were overlapped, the three sides of the periphery were fused, and the on-off valve 9 was attached to one of them. Then, a low resilience polyurethane foam (density 50 kg / m ³ , 30 mm × 0.9 m × 0.7 m, W = 10 mm, D = 10 mm) having a cross section as shown in FIG. 7 was attached to one surface of the film. Thereafter, an inner bag filled with foam beads was inserted into the outer bag, and the open side was fused. And this thing was covered with the water-impermeable cover produced with the polyurethane synthetic leather which used the knitted fabric as the base material, and the attitude maintenance auxiliary tool 1 as shown in FIG. 1 was produced.

(Example 2) Low resilience polyurethane foam (30 mm × 0.9 m × 0.7 m, T = 40 mm, having a concave portion by repeating convex concave portions having a cross section as shown in FIG. A posture holding auxiliary tool 2 as shown in FIG. 2 was produced in the same manner as in Example 1 except that D = 25 mm and the distance between adjacent recesses was 20 mm.

  As shown in FIG. 3, when the posture maintenance assisting device produced in Example 1 and Example 2 was fixed in a bent state and used for body holding, the body load was dispersed and comfortable. Further, even in repeated use, the low resilience polyurethane foam was not peeled off from the outer bag film.

The perspective explanatory view which notched and showed the attitude | position support auxiliary tool which concerns on this invention partially. The perspective explanatory view which notched and showed the attitude | position support auxiliary tool which concerns on this invention partially. Explanatory drawing of the use condition of the posture maintenance auxiliary tool concerning the present invention FIG. 6 is a perspective explanatory view showing a part of the mechanism body according to the present invention. BRIEF DESCRIPTION OF THE DRAWINGS The perspective explanatory drawing which notched and showed the inner bag which concerns on this invention partially in the state filled with many granular materials inside. BRIEF DESCRIPTION OF THE DRAWINGS The perspective explanatory drawing which notched and showed the inner bag which concerns on this invention partially in the state filled with many granular materials inside. Explanatory drawing which showed the synthetic resin foam used for this invention in the cross section. Explanatory drawing which showed the synthetic resin foam used for this invention in the cross section. Explanatory drawing which showed the synthetic resin foam used for this invention in the cross section. Explanatory drawing of profile processing of polyurethane foam.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Posture maintenance assisting tool 2 of the present invention Posture maintenance assisting device 3 of the present invention Mechanism body 4 Inner bag 5 Outer bag 6 Soft synthetic resin foam (low resilience polyurethane foam)
7 Cover 8 Granular body 9 On-off valve 41 Granular material filling chamber 42 Granular material filling chamber 61 Recess H Height of granular material filling chamber L in the granular material filling state Continuous direction of the granular material filling chamber in the granular material filling state Length L1 Length of inner bag L2 in the filled state of granular material Horizontal length T of inner bag in the filled state of granular material T Thickness of synthetic resin foam D Depth of recess in synthetic resin foam W Synthetic resin Width of foam recess

Claims (3)

By having a breathable inner bag filled with a large number of granules and a non-breathable outer bag with the inner bag sealed inside as a mechanism body, each granule is brought into a close contact state by decompression in the outer bag A posture holding auxiliary tool whose shape is fixed,
The inner bag has a structure in which a plurality of granular material filling chambers are connected in a plane in the vertical and / or horizontal direction,
At least one surface of the mechanism main body is attached with a soft synthetic resin foam, and the outer surface of the synthetic resin foam is formed with a plurality of recesses extending vertically and / or horizontally. Auxiliary tool.   The posture maintenance aid according to claim 1, wherein the synthetic resin foam is a low resilience polyurethane foam.   The posture holding auxiliary tool according to claim 1 or 2, wherein the posture holding auxiliary tool is covered with a water-impermeable cover.

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