JP2018183419A - Fixing member for medical treatment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixing member for medical treatment capable of improving comfort.SOLUTION: A fixing member 10 for medical treatment comprises: a water curable core material 12; a protection material 13 for surrounding side end parts of the core material 12; and a coating material 11 for covering the core material 12 and the protection material 13. A thickness of the protection material 13 may be equal to or less than a thickness of the core material 12. The fixing member 10 for medical treatment comprises an end protection part 13, thereby preventing a glass fiber protruded from an end surface of the core material 12 from contacting a skin. The end protection material 13 is formed to have a thickness equal to or less than a thickness of a fabric base of the glass fiber, for reducing irregularity of the fixing member 10 for medical treatment in a thickness direction, therefore, the fixing member for medical treatment can be easily fitted to an affected part, and fitting property and fixing force can be improved.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a medical fixing material, and more particularly to a medical fixing material including a water-curable core material and a covering material covering the core material.

  Conventionally, in the medical field, various medical fixing materials have been used for the purpose of treating fractures, sprains and the like. As a medical fixing material, for example, a water-curable medical fixing material that forms a base material by applying a water-curable resin to glass fiber, polyester nonwoven fabric or polyester knitted fabric has been used. Such a water-curable medical fixing material is known to be useful because it has high resistance to water and high mechanical strength.

  However, in the case of a medical fixing material using a water-curable synthetic resin, the synthetic resin may cause undesired pressure on the patient's skin, possibly causing pain and injury.

  Therefore, for example, Patent Document 1 discloses a base fabric, an aluminum casing provided directly on the base fabric, and an outer casing formed on the aluminum casing without being provided directly on the base fabric as in a general shaping splint. A medical fixing material comprising a surface layer and a skin protective layer is disclosed.

  Since such a medical fixing material employs glass fiber as the base fabric of the medical fixing material, the thickness is small and the shape of the affected part can be easily formed, so that the fixing force of the stay can be improved. In addition, if the medical fixing material can be thinned, the degree of freedom in designing the brace can be improved.

Special table 2010-520769 gazette

  However, when the base fabric is formed of glass fiber or the like, the glass fiber may pop out from the end surface of the base fabric and may tingle or pierce the patient's skin. Therefore, in order to protect the patient's skin from the glass fiber, it is necessary to cover the end face with a cushion, but this makes the entire medical fixing material thicker, and the thickness is different between the center and the end. There was a problem that discomfort occurred in the fixed part.

  This invention is made | formed in view of such a condition, and it aims at providing the medical fixing material which improved comfort.

  In order to solve the above problems, a medical fixing material according to an embodiment of the present invention includes a water-curable core material, a protective material surrounding a side end portion of the core material, and a covering material that covers the core material and the protective material. And comprising. The thickness of the protective material may be equal to or less than the thickness of the core material.

  ADVANTAGE OF THE INVENTION According to this invention, the medical fixing material which improved comfort can be provided.

It is a schematic diagram which shows the medical fixing material which concerns on one Embodiment of this invention. It is an expanded sectional view in the AA line of the medical fixing material of FIG. It is a decomposition | disassembly schematic diagram of the medical fixing material of FIG. It is a schematic diagram which shows the procedure of pouring water on the medical fixing material of FIG. 1 and making it harden | cure. It is a schematic diagram which shows the procedure which equips a human body with the medical fixing material of FIG. It is a schematic diagram which shows the state which mounted | wore the human body with the medical fixing material of FIG. It is an enlarged view which shows the thickness of each part of the medical fixing material of FIG. It is a table | surface which shows the thickness of each part of the medical fixing material of FIG. It is a table | surface which shows the contrast of the Example and comparative example of this invention.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments for carrying out the invention will be described with reference to the drawings. In addition, embodiment described below shows an example of typical embodiment of this invention, and, thereby, the range of this invention is not interpreted narrowly. Further, in the present invention, any of the following embodiments and modifications thereof can be combined with each other.

(1. Configuration example of medical fixing material)
FIG. 1 is a schematic view showing a medical fixing material (water curable stay) 10 according to an embodiment of the present invention. FIG. 2 is an enlarged cross-sectional view of the medical fixing material 10 taken along line AA in FIG. FIG. 3 is an exploded schematic view of the medical fixing material 10. The configuration of the medical fixing material 10 will be described with reference to FIGS. 1 to 3.

  The medical fixing material 10 according to the present embodiment includes an upper and lower two covering portions 11, a water-curable core material 12, and an end protection portion 13 that is a protection material that protects an end portion around the core material 12. It is equipped with. The covering portion 11 sandwiches the core material 12 and the end protection portion 13 from above and below. The core material 12 is formed in a substantially rectangular shape as an example, and the periphery of the end portion thereof is protected by the end portion protection portion 13. The end protection part 13 is joined to each side edge part of the core member 12 by a joining part 14 and is formed in a substantially rectangular shape as an example. The joining portion 14 bonds the upper and lower covering portions 11 to the core material 12 and the end protection portion 13. Furthermore, in the outer surface layer of the lower covering portion 11, one or a plurality of cuts 15 for injecting water into the medical fixing material 10 or draining it from the medical fixing material 10 is formed. Has been. Below, each part is demonstrated in detail.

(2. Covering part)
The covering portion 11 is a member that covers the upper and lower surfaces of the core material 12. As the material of the covering portion 11, for example, water-repellent (resin-repellent) processed polyester or polyolefin non-woven fabric or film using a fluororesin can be used. Thereby, the coating | coated part 11 becomes possible for resin repellency, such as preventing that water curable resins, such as a urethane resin, bleed out. Furthermore, the covering portion 11 can also serve as a cushion when the medical fixing material 10 is attached to a human body.

  Here, the fluorine-based resin is, for example, a co-polymer containing, as a main component, an acrylic acid derivative (perfluoromonomer) made by esterifying a compound having a perfluoroalkyl group and a hydroxyl group with acrylic acid, methacrylic acid, and the like. Oleophobic treatment is performed with a fluorine-based treatment agent using monomers such as alkyl (meth) acrylate and vinyl chloride, and crosslinkable monomers such as 2-hydroxyethyl methacrylate and N-methylacrylamide as copolymer components. be able to.

  Here, for the non-woven fabric, when the fiber bundles on the end surfaces of the base fabric where the tingling occurs after the core 12 is cured and the base fabric where the tingling does not occur, the thickness of the fiber bundle of the base fabric where the tingling occurs. Was 350 μm or more. On the other hand, the thickness of the fiber bundle of the base fabric where no tingling occurred was 150 μm or less. From this result, it is conceivable that the fiber bundle has a thickness of about 250 μm or more and tingling occurs after the core 12 is cured with the resin.

  The medical fixing material 10 does not have a buffer material between the covering portion 11 and the core material 12. Thereby, the medical fixing material 10 can be made thinner than the conventional product.

(3. Core material)
The core material 12 is a sheet-like shape as an example, and is a portion that provides the strength of the medical fixing material (stay) 10. In particular, the strength of the medical fixing material 10 is given by the thickness and material of the core material 12. As the material of the core material 12, for example, a base fabric (base material) such as plastic fiber or glass fiber and urethane resin can be used. Thereby, since both base fabrics, such as glass fiber, and urethane resin are cheap, it becomes possible to manufacture the medical fixing material 10 at low cost. The base fabric is a member for increasing the strength, and the urethane resin is a member for water curing.

  Since the medical fixing material 10 employs glass fiber for the base fabric of the core material 12, the thickness of the covering material 11 and the core material 12 can be reduced to facilitate the shape of the affected part. The power can be improved. In addition, if the medical fixing material can be thinned, the degree of freedom in designing the brace can be improved.

  However, as shown in FIG. 2, for example, when glass fiber 21 is used for the base fabric of the core material 12, the glass fiber 21 protrudes from the end of the core material 12, and the skin tingles or gets stuck in the skin. There is a risk that. Therefore, it is necessary to protect the end surface of the core material 12, but if the end portion of the covering material 11 is extended to protect the end surface of the core material 12, the entire medical fixing material 10 becomes thicker, and the thickness increases. It will be uneven and bumpy.

  Moreover, the material of the core material 12 can use a woven fabric, a knitted fabric, a nonwoven fabric, etc., These may be formed individually or arbitrarily selected and combined. Furthermore, fibers such as natural fibers and chemical fibers can be used for the core material 12, and examples of the fibers include cotton, wool, rayon, polyamide fibers, polyester fibers, acrylic fibers, polyolefin fibers, and glass fibers. , Carbon fibers and other fibers.

(4. End protection part)
The end protection unit 13 is a member that protects the end face of the glass fiber in the core 12. The material of the end protection portion 13 has a rough mesh structure, and for example, a polyester nonwoven fabric can be used. The medical fixing material 10 includes the end protection portion 13, so that the glass fiber 21 that protrudes from the end surface of the core material 12 can be prevented from touching the skin.

  By forming the end protection part 13 to a thickness equal to or less than that of the glass fiber base fabric, it is possible to reduce the unevenness in the thickness direction of the medical fixing material 10, thereby making it easier to adapt to the affected part. , The fit and fixing force can be improved.

(5. Joint part)
The joining portion 14 is a member for bonding the covering portion 11, the core material 12, and the end protection portion 13. For example, a double-sided tape or an adhesive can be used as the material of the joint portion 14.

(6. Cutting of covering part)
The cut 15 of the lower covering portion 11 is a portion that plays a role of water injection and drainage for hardening the core material 12. The cut 15 is formed in a portion where the covering materials 11 of the outer surface layer of the covering portion 11 are in contact with each other, which is a region between the side end portion of the core material 12 and the side end portion of the covering material 11. This is because the resin leaks if there is a cut in the portion where the covering portion 11 and the core material 12 contact. Further, by providing the cut 15 in the above portion, there is no resin leakage and it is possible to easily remove moisture after the curing reaction has occurred.

  In the medical fixing material 10, since the covering portion 11 is processed to be water repellent (resin repellent), internal moisture is difficult to be discharged to the outside. In addition, if moisture remains inside the medical fixing material 10, the affected area is softened (blown). Therefore, by forming the notch 15 in the portion of the outer surface layer of the covering portion 11 where the covering materials 11 are in contact with each other, the moisture that has entered the medical fixing material 10 can be drained from the notch 15 to the outside. . In addition, since the polyester nonwoven fabric of the edge part protection part 13 is not water-repellent, it can also drain from the edge part protection part 13. FIG. Further, the portion that plays the role of water injection and drainage for curing the core material 12 is not limited to the notch 15 but may be a hole shape or the like.

(7. Example of water curing procedure)
FIG. 4 is a schematic diagram showing a procedure for pouring water on the medical fixing material 10 and curing it. The procedure for curing the medical fixing material 10 will be described with reference to FIG.

  FIG. 4A is a diagram showing the lower covering portion 11 with the upper covering portion 11 removed and cut. As an example, a cut 15 and a cut 45 are formed in the lower covering portion 11 at a position where the core member 12 and the end protection portion 13 are not bonded to each other in the vicinity of the end in the longitudinal direction. FIG. 4B is a diagram illustrating a state in which water is injected from the cut 15 into the core member 12 and the injected water is drained from the cut 45 as an example of water injection. FIG. 4C is a diagram illustrating a state in which excess water is drained after water injection and the core material 12 is cured.

  First, it is confirmed that the cut 15 and the cut 45 are formed in the covering portion 11 of the medical fixing material 10. Next, as shown in FIG. 4B, for example, water is poured from the cut 15 into the inside of the covering portion 11. Excess water that has been poured in more than the necessary amount is drained from the cut 45 to the outside of the covering portion 11, for example. When the core material 12 is sufficiently immersed in moisture, the medical fixing material 10 is squeezed to drain the moisture from the notches 15 and 45 and the end portions of the covering portion 11, and maintain the shape to be fixed for a while. put. For example, the core material 12 is cured in about 10 minutes, but it takes about 24 hours to be completely cured.

(8. Examples of wearing medical fixing materials)
FIG. 5 is a schematic diagram showing a procedure for attaching the medical fixing material 10 to the human body. FIG. 6 is a schematic diagram showing a state in which the medical fixing material 10 is mounted on the human body. A procedure for attaching the medical fixing material 10 to the human body will be described with reference to FIGS. 5 and 6. In the present embodiment, as an example, a procedure for mounting the medical fixing material 10 around the wrist of a human body will be described.

  First, as described above, the medical fixing material 10 is impregnated with moisture. Next, as shown in FIG. 5, the medical fixing material 10 impregnated with moisture is attached to the right wrist 51 from the palm side of the right hand of the human body, for example. At this time, the shape of the medical fixing material 10 is adjusted so that the medical fixing material 10 accurately fixes the affected part near the right wrist 51. The portion of the medical fixing material 10 that contacts the thumb can be fitted to the right wrist 51 more by cutting it into a substantially semicircular shape according to the shape of the palm. Then, as shown in FIG. 6, for example, the medical fixing material 10 is fixed to the right wrist 51 with an elastic bandage 61 or a joint device such as a supporter. As described above, the medical fixing material 10 is molded by applying the covering material 11, which is a flexible material, to the affected area, and curing the core material 12 such as a stay in a state of being fitted to the affected area.

  With the above-described configuration and operation, the medical fixing material 10 of the present embodiment is reduced in thickness while maintaining strength by protecting the peripheral edge portion of the core material 12 with the edge protection portion 13, and also improves comfort. Can be made.

(9. Examples and experimental methods)
Next, an example and an experimental method of the medical fixing material 10 of the present embodiment will be described with reference to FIGS. FIG. 7 is an enlarged view showing the thickness of each part of the medical fixing material 10. FIG. 8 is a table showing the thickness of each part of the medical fixing material 10.

  As shown in FIGS. 7 and 8, the thickness (1) of the cast core material 12 is preferably 2.0 mm to 10.0 mm, and more preferably 4.0 mm to 6.0 mm.

  Further, the thickness of the covering material is conventionally about 2.5 mm to 3.0 mm, but the thickness (2) of the covering material 11 is 0.1 mm to 2.5 mm in order to reduce the thickness of the medical fixing material 10. Is preferable, and 0.3 mm to 1.5 mm is more preferable. These thicknesses are set from Sontala 0.45 mm and ASP032902.5 mm as a result of measuring with Peacock J-Bφ 30 mm.

  Further, the width (3) of the end protection portion 13 at the outer edge is preferably 2.0 mm to 8.0 mm, and more preferably 4.0 mm to 6.0 mm. In addition, it is preferable that the thickness of the edge part protection part 13 which is a protective material is below the thickness of the core material 12. FIG.

  Next, experimental methods of the present example and comparative example will be described.

  For strength measurement, a three-point bending test (indentation test) is performed with an autograph, and the maximum pressure until breakage is 30 N / inch or more ("Autograph (registered trademark)" AG- manufactured by Shimadzu Corporation) 20KNI, 1kN load cell is used), and it is confirmed that it has enough strength to hold the joint by not breaking at 30N / inch.

  As for the fixing force, each stay of the example and the comparative example was fixed to the wrist joint, and the braking angle (the angle until the hand feels resistance when the wrist joint is bent) was measured and decreased by 5 degrees or more. Confirm that there is no. In the comparative example, the braking angle is lowered by 5 degrees or more, and the result is that the fit is felt poor.

  Regarding the resin leakage, it is confirmed that the stay is heated to prevent the resin leakage from occurring on the surface of the covering material 11.

  Furthermore, the present inventors manufactured a hand covering device using the medical fixing material 10 according to the present embodiment, and performed wearing evaluation. Several test subjects were asked to wear the hand covering orthosis according to this embodiment, and evaluation was requested. As a result, responses such as “Easy to move fingers”, “Do not become jammed”, and “Fit to hand” were obtained. Thereby, it has confirmed that the hand part covering device which concerns on this embodiment had the comfort which can be mounted | worn easily and can continue mounting | wearing.

(10. Comparison between Example and Comparative Example)
FIG. 9 is a table showing a comparison between examples of the present invention and comparative examples. The comparison between the example of the present invention and the comparative example will be described with reference to FIG.

  As shown in FIG. 9, the “fixing layer number (thickness)”, “width of the edge protecting portion of the outer edge”, and “thickness of the covering material” of the medical fixing material were changed. ) To (4) and comparative examples (1) to (4) were compared for comfort. In all of the examples and comparative examples (1) to (3) in FIG. 9, the coating material is subjected to water repellent (resin repellent) treatment. In Comparative Example (4), the coating material is not subjected to a water repellent (resin repellent) treatment. In the comfort column in FIG. 9, “◯” indicates that it is comfortable, and “X” indicates that it is not comfortable.

  Here, the “ratio” in the rightmost column of FIG. 9 represents the ratio of the thickness of the coating material to the thickness of the core material, that is, the value of (thickness of the coating material) / (thickness of the core material).

  From the results shown in FIG. 9, when the core material is thin (1 mm) as in Comparative Example (1), comfort cannot be obtained because the fixing force is insufficient when the medical fixing material is attached. In addition, when the width of the end protection part is long (10 mm) as in Comparative Example (2), the comfort of the non-fixed nonwoven fabric increases in the state of fitting the affected part when the medical fixing material is attached. Can't get. In addition, when the covering material is thick (6 mm) as in the comparative example (3), the medical fixing material is difficult to fit into the shape of the affected part, so that comfort cannot be obtained when it is worn. In addition, as in Comparative Example (4), when the coating material is not treated with water-repellent (resin-repellent) treatment, the core material resin leaks from the coating material when the medical fixing material is attached, which increases comfort. Can't get.

  On the other hand, from the results shown in FIG. 9, as in Examples (1) to (4), the thickness of the core material is 2 mm to 6 mm, the width of the end protection portion is 2 mm to 5 mm, and the thickness of the covering material It was found that the medical fixing material can be comfortably worn when the thickness is in the range of 0.45 mm to 1.5 mm.

  Further, from the results shown in FIG. 9, it was found that the medical fixing material can be comfortably mounted when the ratio of the thickness of the covering material to the thickness of the core material is 1/20 or more and 1/4 or less. This is because when the ratio of the thickness of the covering material to the thickness of the core material is larger than 1/4, the strength of the stay is insufficient, so that the fixing force is insufficient when the medical fixing material is attached, and the fixing becomes difficult. Moreover, since the thickness of the whole becomes thick and it becomes difficult for the medical fixing material to fit the shape of the affected part, it is difficult to wear comfortably. When the ratio of the thickness of the covering material to the thickness of the core material is smaller than 1/20, the core material becomes thick, so it becomes difficult to form the affected part when the medical fixing material is attached, and comfort is provided when the medical fixing material is attached. This is because it cannot be obtained. Further, the covering material becomes thin and the covering material is easily torn, and the resin is liable to leak due to the tearing, which makes it difficult to obtain comfort.

  The medical fixing material according to the present invention only needs to have a core material such as a stay impregnated with a curable resin in a base fabric (base material) and sandwiched by a covering material such as a cushion, and fixes a fractured part or the like. Can be used to

10 Medical fixing material (water-curing stay)
DESCRIPTION OF SYMBOLS 11 Covering part 12 Core material 13 End part protection part 14 Joining parts 15 and 45 Cut 21 Glass fiber 51 Wrist 61 Bandage (cast material)

Claims (9)

A water-curable core material;
A protective material surrounding a side end of the core material;
A covering material covering the core material and the protective material;
Medical fixing material with   The medical fixing material according to claim 1, wherein a thickness of the protective material is equal to or less than a thickness of the core material.   The medical fixing material according to claim 1, wherein the covering material covers upper and lower surfaces of the core material and the protective material.   The medical fixing material according to any one of claims 1 to 3, wherein a ratio of the thickness of the covering material to the core material is 1/20 or more and 1/4 or less.   The medical fixing material according to any one of claims 1 to 4, wherein the covering material is resin-repellent processed.   The medical fixing material according to claim 5, wherein the covering material is resin-repellent processed with a fluororesin.   The medical fixing material according to any one of claims 1 to 6, wherein the covering material has one or a plurality of cuts in an outer surface layer.   The medical fixing material according to claim 7, wherein the cut is formed in a region between a side end portion of the core material and a side end portion of the covering material. The medical fixing material according to any one of claims 1 to 8, wherein the core material includes a glass base material impregnated with a water curable resin.