JP2002159518A - Sprint for orthopedics - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sprint for orthopedics having a simple structure and satisfying required characteristics such as a fixing function, a fitting function, convenience, adequacy, and comfortableness. SOLUTION: Rectangular base clothes 1 containing impregnated hardening resin are shifted from each other and piled to form a support body 2 with a predetermined shape, and a plurality layers of base clothes 1 are disposed in the central part 3 of the support body 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a splint or splint used in the field of orthopedic surgery.

[0002]

2. Description of the Related Art In the fields of orthopedic surgery, emergency treatment, and the like,
Various methods are known for fixing and supporting an affected part by attaching a brace to a part of a body for the purpose of treating a fracture, a sprain, a dislocation, or the like, and protecting the affected part. As one method, the cloth is impregnated with a water-curable resin, the cloth is soaked in water to contain an appropriate amount of water, and is applied to the affected area and molded.
A splint that is cured in that state and used as a support for the affected area is used. In this type of splint, the affected part can be securely held and fixed, the peripheral part can be easily cut and modified into a desired shape so as to match the affected part, and the whole can be formed thin. For the purpose, an elastic second sheet body is overlapped on a part of the elastic first sheet body having a size substantially adapted to the affected part, and a region where both sheet bodies are doubled, An orthopedic splint in which a region which is present on the periphery of the sheet member and has no second sheet member, that is, a region of the first sheet member alone, is formed by impregnating and holding both sheets with a water-curable resin. It has been proposed by the applicant (JP-A-2000-189449). The splint is formed so that the first sheet body substantially conforms to the shape of the use site, so that the splint can be held at the use site at the periphery thereof, and the affected part is formed by the overlapping portion of the first and second sheet bodies. Has the advantage of being able to have a strength for holding the first sheet member, and to be able to adapt to the shape of the affected part by appropriately cutting off the peripheral edge of the first sheet member.

[0003] However, the above-mentioned orthopedic splints are particularly designed to adjust the first sheet body from a wide width to a gradually narrow width so as to be adapted to a portion where the circumference changes gradually, such as the upper limb and the lower limb which are most frequently applied. And the second sheet body is formed in a narrow rectangular shape.
Therefore, it is necessary that the first sheet body and the second sheet body have different shapes and sizes. As described above, both sheets having different shapes and sizes must be manufactured in separate steps, and furthermore, one of the sheets needs a step of punching in a trapezoidal shape. It is only after that that the impregnation step of the water-curable resin has to be carried out. Therefore, there is a problem that the manufacturing process of both sheet bodies becomes complicated. In addition, the strength must be provided by the two sheets, but if the thickness of the sheet is increased, the strength is increased, but it is difficult to adapt the sheet to the affected part.

[0004]

The characteristics required for an orthopedic splint include the fixability that the affected part can be fixed accurately, the fitting property that can wrap the affected part firmly,
It is easy to install in a short time and does not require special skills, adaptability to freely set the length according to the affected area, and comfortable without giving the patient discomfort and without scratches, itching, smell etc. is there. It is an object of the present invention to provide an orthopedic splint which is simple to manufacture and satisfies the above-mentioned required characteristics.

[0005]

In order to solve the above-mentioned problems, in the present invention, rectangular base cloths impregnated with a curable resin are overlapped with each other while being shifted from each other to form a support having a predetermined shape. The base fabric at the center of the support has a plurality of layers.

As the curable resin to be impregnated into the support, a water-curable resin and a thermoplastic resin are suitable, and other photo-curable resins can also be used.

The support may be provided with a cushioning material on the side facing the affected part and a covering material on the side opposite to the affected part.

The support may be formed by stacking the base fabrics in a trapezoidal shape, or may be formed by stacking the base fabrics in a rectangular shape. do it. Although the base cloth is rectangular, one having a different width or length may be used, or a rectangle having exactly the same shape may be used.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention;

In FIG. 1, a is a plan view of an embodiment of the present invention, b is a sectional view taken along the line BB, and c is a plan view of a base fabric used. Reference numeral 1 denotes a rectangular base cloth serving as a base material for forming the support of the present invention, and in the illustrated example, three base cloths ₁₁ ,
1 _2, 1 ₃ using a superposition shifted from each other in a V-shape with respect to the 1 short side of each base fabric, to form a support 2 and arranged substantially as a trapezoid is formed as a whole The base cloth at the center (broken line 3) of the support 2 is overlapped with a plurality of layers. The support 2 is impregnated with a water-curable resin. Reference numeral 4 denotes a cushioning material placed on the side opposite to the affected part when the support 2 is mounted, and reference numeral 5 denotes a covering material placed on the opposite side of the support 2 from the affected part. It is wider enough to cover the support completely. An orthopedic splint 6 is formed by laminating the cushioning material 4, the support 2, and the coating material 5. The orthopedic splint 6 is enclosed in a moisture-impermeable bag (not shown) so as not to come into contact with moisture during storage.

The base fabric forming the support can be formed of a knitted fabric, woven fabric, non-woven fabric or the like having appropriate stretchability and flexibility. Examples of knitted or woven fabrics include those using fibers such as glass, polyester, polypropylene, aramid, and carbon. Examples of the nonwoven fabric include polyester, polypropylene, polyethylene, styrene / isoprene / styrene copolymer, and the like. The thickness of the base fabric can be adjusted to a desired value by making the material used for the base fabric a single layer or a multilayer. When using a large amount of thin base cloth and forming the support by shifting it little by little, the gradation of the thickness changes more continuously than forming the support using less thick base cloth, A smooth shape can be obtained as a whole. As an example of the size of the support shown in FIG. 1, for the lower leg, the narrow width is 150 mm, the wide width is 300 mm, the length is 1200 mm, and for the forearm, the narrow width is It is 75mm wide, 125mm wide and 300-350mm long.

The water-curable resin impregnated in the support is a conventional water-curable splint (for example, JP-A-2000-189449).
For example, a water-curable urethane prepolymer is suitable. The urethane prepolymer is a prepolymer having an isocyanate group at a terminal obtained by a reaction between a polyol and a polyisocyanate. When water is supplied at the time of use, a reaction occurs to form a urethane bond, and the polyurethane is cured. As the polyol, polyethylene glycol, polypropylene glycol, a copolymer of ethylene glycol and propylene glycol, or the like can be used. Various organic polyisocyanates can be used as the polyisocyanate. In order to adjust the curing time, storage stability, defoaming acceleration during curing, and the color tone of the finished water-curable resin, catalysts, stabilizers, defoamers, antioxidants, coloring agents, thixotropic agents, Fillers and the like can be used. As these additives, those conventionally used can be used.

It is preferable that the cushioning material is rich in buffering properties for the affected area, does not transmit the resin impregnated in the support, and is non-reactive with the curable resin. It is more preferable that the material has air permeability. Materials that can be used as the cushioning material include non-woven fabrics, for example, polyester non-woven fabrics, foams, for example, urethane foam, polyethylene foam, polypropylene foam, silicone foam, polyester foams, etc., combinations, laminates, uneven structures, air caps, and the like. A bag formed by wrapping air with a urethane film, polyester film, polypropylene film, etc., gel, for example, urethane gel, silicone gel, polyethylene gel, acrylic gel, natural-derived gel such as natural rubber, into a breathable structure There are formed ones, preferably those in which the surface of the gel is coated with an elastic film, and those in which long fibers are entangled to form a cushion material. When a water repellent treatment is performed on the surface of the cushioning material on the affected part side, it is possible to reduce the wetness of the affected part when the part is worn.

[0014] The coating material is preferably non-reactive with the curable resin. Materials that can be used as coating materials are fibers,
For example, polyester, polypropylene, polyethylene,
Knitted fabrics, woven fabrics, non-woven fabrics, and net-like structures made of synthetic fibers such as polyacryl, polyurethane, and polyamide, recycled fibers such as rayon, cotton, and hemp, and inorganic fibers such as natural fibers and glass fibers , Polyester, polypropylene, polyethylene, polyacryl, polyurethane, polyamide and the like to form a film.

The cushioning material and the covering material are made larger than the support so that the cured support does not protrude from the cushioning material and the covering material, so that the patient or the practitioner can be injured by touching the cured support. Accidents can be prevented. Depending on whether water for curing the support is added from the coating material side, from the buffer material side, or from both sides, water permeability can be imparted to one or both of the coating material and the buffer material. Alternatively, in the case of using a method in which the support is immersed in water and water is penetrated from the side, both the coating material and the buffer material may be water-impermeable.

Next, a method of using the sprint shown in FIG. 1 when applied to the lower limb will be described with reference to FIG. The splint 6 is taken out of the sealed bag, spread, and a small amount of water is sprayed on the splint surface from the coating material 5 side. And FIG.
As shown in a, the cushioning material 4 is applied to the affected part after shaping such as limb adjustment so that it comes to the skin side. At this time, the longitudinal axis of the lower limb is positioned on the central portion 3 of the support, that is, the region where the base fabric of the support overlaps a plurality of layers. Then, as shown in FIG. 2b, the shape is adjusted by hand from the center to the periphery so as to conform to the shape of the affected part, and a bandage or the like is wrapped from above and fixed so as not to move. As time passes, the resin hardens, and thus the laminated base fabric also hardens and integrates, and is fixed so as to enclose the lower limbs. In particular, the central portion of the support having a plurality of base fabrics stacked thereon has a higher strength than others, and a strong supporting force along the longitudinal direction of the lower limb can be obtained.

As a specific example of the configuration shown in FIG. 1 for the lower limb, urethane prepolymer is applied to a glass fiber having a width of 100 mm and a urethane prepolymer is applied to a knitted fabric having a length of 600 mm. , Using two sets of this base cloth, shifting them in a V-shape and stacking them, the upper end width is about 170mm, the lower end width is about 100mm
(Approximately 30mm overlap at the top, approximately 100m overlap at the bottom
m). As the cushioning material, a polyester nonwoven fabric which was slightly larger than the support and had a basis weight of 500 g / m ² was used. Almost the same size as cushioning material as covering material
A 100 g / m ² polyester nonwoven fabric was used. The support was placed on the cushioning material, the covering material was further placed thereon, and the peripheral portions of the cushioning material and the covering material were adhered with a double-sided tape to obtain an orthopedic splint.

In the above-described embodiment, the base fabrics are shown as being trapezoidal. However, as shown in the plan view of FIG. 3A and the sectional view of FIG. 3B, rectangular base fabrics 31 ₁ , 31 ₂ , 31 ₃ can be shifted in parallel to form a rectangular support 32. This is because the embodiment of FIG.
Or, it is advantageous when applied to a part where the circumference is small, but is suitable when applied to a part where the circumferential diameter does not change so much.

In the above embodiment, the support is made of a three-layer base fabric, but the support is not limited to three layers.
Further, a support can be formed by stacking multiple base fabrics. Although the base fabrics have the same shape, it is also possible to use rectangular base fabrics having slightly different side lengths.

[0020] The length of the base fabric can be an appropriate length according to the portion to be applied, but if the length is slightly too long, the extra portion is folded back to reduce the length. Even if it is adjusted, there is no problem in mounting because the thickness of the base cloth is thin.
In this case, it is of course possible to adjust the length by cutting off an extra portion.

The curable resin is not limited to the water-curable resin, but may be a thermoplastic resin. As the thermoplastic resin, a resin used in a conventional thermoplastic resin fixing bandage can be used. For example, proposed by the present applicant, linear saturated polyester and a resin having a low softening temperature with low crystallinity, such as polyvinyl ether, saturated polyester, polyethylene vinyl acetate, cyclic ester,
There is a resin comprising one of polyisoprene and polyisobutyl methacrylate (JP-A-55-88767).
The same base fabric as that used for the water-curable resin can be used. An orthopedic splint using a base cloth impregnated with this thermoplastic resin is immersed in warm water of 55 to 80 ° C. until the support is sufficiently softened and self-adhesive is obtained.
When removed from warm water to remove excess water and applied to the affected area, the support hardens as the temperature decreases.

The orthopedic splint of the present invention is a conventional splint previously proposed by the present applicant (JP-A-2000-2000).
189449) has the following advantages. That is, in the conventional splint, substrates of different sizes must be used in order to provide support for a specific portion, whereas in the present invention, a single base cloth is possible. Secondly, in the conventional splint, the overlapping portion is applied to the affected area, but the area of the affected area varies depending on its symptoms and individual differences. Is small,
In the present invention, by adjusting the overlapping condition of the base cloths, it is possible to cope with the symptom and the area of the affected part in accordance with the condition. Third
On the other hand, in the conventional splint, it is necessary to fix it with a thick multilayer body to provide support, so that the unevenness becomes remarkable and the fit is lost, whereas in the present invention, by shifting the overlap, The required thickness can be obtained, and a flat shape can be maintained as a whole. Fourth, in conventional splints, different sizes are required to provide a gradation of thickness, from the area requiring the most support of the affected area to the area where operability and fit are required without much support. In contrast, in the present invention, a single base cloth can be used.

[0023]

According to the present invention, a rectangular base cloth impregnated with a curable resin is used as a base material, and a support having a desired shape is obtained by stacking the base cloths shifted from each other. In order to form a region with strong strength especially in the center part so that the base cloths overlap in multiple layers, the affected part is wrapped around the part where the side base cloths overlap little,
A high supporting force can be obtained with a thin base cloth, and a cushioning material is provided on the affected part side of the support so that it can be directly applied to the affected part without using a conventional lower winding material.
Therefore, it satisfies all of the fixation, fit, simplicity, adaptability, and comfort required for orthopedic splints, and is manufactured because the base fabric used as the base of the support can be a single type of rectangular fabric. The process is greatly simplified, the production cost is reduced, and the yield can be increased.

[Brief description of the drawings]

FIG. 1 is a plan view of an embodiment of the present invention, and FIG.
Sectional drawing along line B, c is a plan view of the base fabric.

FIG. 2 is an explanatory diagram of a mounting method according to the embodiment of the present invention.

FIG. 3 is a plan view and b is a of a different embodiment of the present invention.
It is sectional drawing which follows the BB line of FIG.

[Explanation of symbols]

Reference Signs List 1 ₁ base cloth 1 ₂ base cloth 1 ₃ base cloth 2 support 3 center part of support 4 cushioning material 5 covering material 6 orthopedic splint 21 lower limb 31 ₁ base cloth 31 ₂ base cloth 31 ₃ base cloth 32 support

Continued on front page F term (reference) 4C098 AA01 BB09 BB11 BC44 BC46 DD01 DD06 DD10 DD13 DD16 DD22 DD23 DD24 DD25 DD26 DD28 DD30

Claims (7)

[Claims] 1. A rectangular base cloth impregnated with a curable resin is displaced from each other and overlapped to form a support having a predetermined shape, and the base cloth at the center of the support has a plurality of layers. An orthopedic splint characterized by: 2. A cushioning material is provided on a side of the support opposite to the affected part,
The orthopedic splint according to claim 1, further comprising a covering material on a side opposite to the affected part. 3. The orthopedic splint according to claim 1, wherein the curable resin is a water-curable resin. 4. The orthopedic splint according to claim 1, wherein the curable resin is a thermoplastic resin. 5. The orthopedic splint according to claim 1, wherein the base fabrics are overlapped so as to form a trapezoid. 6. The orthopedic splint according to claim 1, wherein the base fabrics are overlapped so as to form a rectangle. 7. The orthopedic splint according to claim 1, wherein rectangular base cloths having the same shape are used.