JP2016144610A - Photocuring-type fixing material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a photocuring-type fixing material which can be applied along the outer shape of an object part, can securely retain the shape by hardening the photocuring-type resin material supported by a winding fixing band through light irradiation and can temporarily release the fixation from the fixed state without decomposition and can make reattachment.SOLUTION: Flat and small-sized innumerable shape retaining pieces 3 formed of light-transmitting resin material are connected to each other at the intermediate parts in the thickness direction with connection pieces 4 to form a bendable flat flexible fixing band 2 of a prescribed size, a photocuring-type resin material 6 is charged into a gap 5 formed among the shape retaining pieces 3 in the flexible fixing band 2, and the flexible fixing band 2 is sealed with a coating layer 7 composed of light transmissive resin films from both front and rear surfaces to compose a fixing material.SELECTED DRAWING: Figure 1

Description

  The present invention provides a photocurable resin material that can be wound around a target portion by interposing a photocurable resin material between substrates whose shape can be freely changed and contained by light irradiation. The present invention relates to a photo-curing type fixing material configured to be fixed by curing.

  Conventionally, fixing materials (gips) have been widely used in the medical field, particularly in the orthopedic field, to retain a damaged part for the purpose of treating fractures, sprains and the like. As this therapeutic fixing material, there is a hydraulic fixing material of a type in which calcined gypsum is kneaded with water and applied to and held on a fiber base material such as flannel and wound around the affected area, for example, a cast bandage. It was general purpose.

  Such a hydraulic fixing material (gypsum bandage) has many problems such as being heavy and insufficient in strength due to the coating agent and being weak against water. Therefore, as a solution to such problems, a water-curable medical fixing material in which a water-curable resin material is impregnated into a base material made of woven fabric or knitted fabric is used because it is resistant to water and has high strength. ing. Such a technique is known from Patent Document 1, for example.

  In addition, the water-curing fixing material has a problem in that the use causes a decrease in biological function at the wearing site, so that it is possible to fix the wearing site without causing an obstacle after winding. Medical fixing materials employing a curable resin have been developed, and there are some that attempt to solve the problems of water-curable fixing materials. Such a technique is known from Patent Documents 2 and 3 and the like.

  However, the fixing material using the photo-curable resin material is naturally wound around the treatment site of the patient and used to irradiate the fixing material with light to fix the liquid resin. It must be cured by reaction. Therefore, as a resin to be used, an ultraviolet curable resin is generally used for curing. Since the light to be irradiated is strong and hardly visible, there is a problem in that the eyes are damaged when looking directly. Therefore, in the case of curing using ultraviolet rays having such a risk, it must be handled from a standpoint that fully recognizes the risk, and there is a problem that it places a heavy burden on a practitioner such as a medical worker. . For this reason, use of a curing agent capable of photocuring in the visible light region has been partially adopted.

  Further, in the fixing material in the prior art, even when using a hydraulic resin, or even when using a photo-curable resin, when the resin is fixed by wrapping around the patient's treatment site, Since this fixing material is fixed and held in the wound mounting state, the object can be achieved. However, when the affected area is treated after the treatment, it cannot be removed unless the fixing material is disassembled. Therefore, if it is necessary to treat the affected area and reshape the treatment area with a fixing material, it will be inconvenient because a new fixing material will be prepared and wrapped again (fixed). There is a problem that the burden is increased economically.

  JP 2002-325785 A   JP 2013-118909 A   Japanese Patent No. 5024951

  In the present invention, the problems in the prior art are solved, and the outer shape of the target part can be applied without being wound around the target part like a conventional cast bandage, and is supported on the base material by light energy. To provide a photo-curing fixing material that has a function that allows the photo-curing resin material that has been cured to retain its shape reliably and can be temporarily released without being disassembled from the fixed state and can be remounted. It is intended.

In order to achieve the object, the photocurable fixing material according to the present invention comprises
An infinite number of flat and small shape retaining pieces made of a light-transmitting resin material are connected to each other by a connecting piece at an intermediate portion in the thickness direction to form a flexible and fixed flexible fixed band having a predetermined size. The gap is formed between the shape-retaining pieces in the flexible fixing band and is filled with a photocurable resin material via a fibrous medium, and the flexible fixing band is transparent from both front and back surfaces. It is characterized in that it is configured to be covered and sealed with a covering material made of a flexible resin film.

  Each shape-retaining piece in the above invention is formed in a square shape and connected by a connecting piece of the same material at a narrow interval, and can be displaced in both the vertical axis and the horizontal axis connected by the connecting piece portion. It is good. Each shape-retaining piece is an equilateral triangle, and adjacent shape-retaining pieces form a string-like shape at the middle portion in the thickness direction between the top end portion of one shape-retaining piece and the bottom end portion of the other shape-retaining piece. It is preferable that the connecting pieces are connected to each other and can be displaced in both the vertical axis and the horizontal axis. The shape-retaining piece and the connecting piece are preferably integrally formed by injection molding. In this way, a flexible fixing band is formed.

  The flexible fixing band is formed with a space communicating with the front and back at a portion other than the connecting portion by the connecting piece between the shape retaining pieces, and the photocurable resin contained in the medium through the space. Should be communicated to the front and back.

  According to the photo-curing type fixing material of the present invention, innumerable shape retaining pieces are connected to each other by connecting pieces at intermediate positions in the thickness direction so that a flexible fixing band is formed. Since it can be bent in the direction of the front and back, and the shape-retaining pieces are connected in large numbers, they can be bent freely as a fixed band regardless of the direction. Therefore, for example, when used as a surgical medical fixing material, it can be comfortably attached along the affected part. Since the photo-curing resin that functions as a fixing means is filled between the shape-retaining pieces, it can be fixed in a displaced state by being cured by irradiation with light rays, and can be reasonably aligned with the outline of the attachment site. The function to fix and hold can be demonstrated.

  In addition, since the photocurable fixing material of the present invention is interposed by impregnating a fibrous medium in the gap formed between the shape retaining pieces of the flexible fixing band, the amount of the photocurable resin material used And can be provided at low cost by saving expensive materials.

FIG. 1 is a perspective view in which a part of the photo-curing type fixing material of the present invention is broken. FIG. 2 is a plan view (a) showing a part of an infinite number of shape retaining pieces constituting the fixed band, a part of the connecting pieces connecting the shape retaining pieces, and a view taken along the line AA and between the shape retaining pieces. It is a principal part expanded sectional view which shows the filling aspect of the photocurable resin material formed. FIGS. 3A and 3B are diagrams showing one mode of use, in which FIG. 3A shows a state before the fixing material is attached, and FIG. 3B shows a state in which the fixing material is attached. FIG. 4A is a plan view showing a part of a flexible fixing band according to another embodiment, and FIG. 4B is an enlarged plan view showing a group of shape retaining pieces constituting the fixing band, and a side view of FIG. It is a figure (c).

  Next, the photocurable fixing material of the present invention will be described with reference to the drawings showing an embodiment thereof.

  As shown in FIG. 1, the photocurable fixing material 1 (hereinafter, simply referred to as “fixing material 1”) of this embodiment includes an infinite number of holding pieces 3 formed in a small size and arranged by connecting pieces 4. A flexible fixing band 2 (hereinafter simply referred to as “fixing band 2”) including a photocurable resin material 6 that is connected to each other and arranged in a rectangular shape having a predetermined size and is interposed and held between the holding pieces 3. It is comprised by the coating layer 7 laminated | stacked on the front and back of the fixed belt | band | zone 2 and sealing the periphery.

  The innumerable holding pieces 3 constituting the fixed band 2 are plastics having light transmissivity, as shown in FIGS. 2A, 2B, and 2C, and have a rectangular shape with a very small outer dimension and a thickness dimension. Are formed in a matrix at regular intervals so as to have a predetermined dimension in front, rear, left and right. And each shape-retaining piece 3 is mutually connected by the connection piece 4 of the dimension smaller than the thickness and width dimension of the shape-retaining piece 3 in the intermediate part of the thickness direction and the length direction. Note that, as the translucent plastic used here, any one of polyethylene, polypropylene, polycarbonate, polyamide and the like is used. And this fixed band 2 can be obtained by integrally molding innumerable shape-retaining pieces 3 and connecting pieces 4 connecting them together.

  Further, the fixed band 2 is arranged by connecting innumerable shape retaining pieces 3 with connecting pieces 4 at a constant interval, and the connecting pieces 4 have a smaller cross section than the shape retaining pieces 3. The space can be displaced in any direction by a narrow space (gap 5) formed between the shape retaining pieces 3. In addition, since the shape-retaining piece 3 and the connecting piece 4 are integrally formed, they are not separated even if they are displaced in a free direction. Therefore, it can be freely bent in the width direction (left-right direction) and the length direction (vertical direction) in use. Moreover, it can be partially displaced in addition to both the vertical and horizontal directions.

  Further, the gap 5 between the shape retaining pieces 3 in the fixing band 2 is filled with a fiber yarn containing a photocurable resin material 6 so that the shape retaining pieces 4 can be cured and fixed. Yes. By doing so, the fiber yarn can be held without dropping the liquid photocurable resin material 6 in order to interpose the photocurable resin material 6 in the gap 5 formed between the shape retaining pieces 3. In addition, as the photocurable resin material 6 to be used, a visible light to ultraviolet curable resin, for example, a methacrylate resin including a photocuring initiator is preferable.

  The fixing band 2 having such a configuration is hermetically sealed by surrounding the outer surface with a coating layer 7 made of a translucent resin film on both the front and back surfaces. By doing in this way, it can prevent that the photocurable resin material 6 contained in the fixed band 2 leaks outside. As a translucent resin film for forming the coating layer 7. Polyethylene, polypropylene, etc. can be applied. Further, since the fixing band 2 is sealed with the coating layer 7, the odor generated from the photo-curing resin material 6 generated when irradiated with light is not leaked to the outside and handling is facilitated.

  The fixing material 1 configured in this manner is a rectangular shape whose outer dimensions correspond to the object to be used, and the fixing band 2 is hermetically sealed by the covering layer 7, so that it is included in the fixing band 2 until it is used. The photocurable resin material 6 is kept in an unreacted state. However, since the photocurable resin material reacts and cures when exposed to light from the outside, it is stored in a packaging bag (not shown) formed of a light-shielding resin film so as to maintain an unreacted state. Keep it like that.

  In use, the packaging bag is opened, the fixing material 1 is taken out, and as shown in FIG. 3, it is wrapped around the affected area from both sides along the treatment site A of the treated patient (patient) to be dealt with. Embrace. In this case, the affected area of the patient is treated with a bandage or gauze after treatment, and the upper side thereof is covered with the fixing material 1, and further wound with the bandage 10 or the like from the outer side so that the fixing material 1 follows the affected area. Secure to. By carrying out like this, the fixing material 1 is wound by overlapping both end portions on the treatment site A (attached portion). At this time, the fixing material 1 has a fixing structure 2 of which the main body is composed of an infinite number of small shape-retaining pieces 3, and there are gaps 5 between the shape-retaining pieces 3 and the connecting pieces 4 having a small cross section. Since they are connected to each other, cushioning properties are exerted in the gap 5 part, and the treatment is carried out without difficulty by wrapping and fixing with the bandage 10 while pressing the fixing material 1 from the outside so as to correspond to the shape of the affected part. It can be embraced by being displaced along the peripheral surface of the part A.

  In this way, the fixing material 1 embraced around the treatment site A is irradiated with a light beam from the outside by a light irradiator (not shown), and the photocurable resin material 6 included in the fixing band 2 is irradiated with light energy. And is gradually cured. At this time, as a light source to be irradiated, for example, irradiation with an LED light (light irradiator) emitting an absorption wavelength of 350 to 410 nm is performed to cure the photocurable resin material 6. Of course, it goes without saying that the photo-curing resin material 6 inserted and adhered between the holding pieces 3 in the fixing band 2 via fiber yarns is adjusted to a component that reacts rapidly by the light irradiation. . And, as an irradiation light source by the light irradiator, by using a light source lamp that irradiates a part of visible light, since the irradiation light can be visually recognized at the time of light irradiation, the practitioner can correctly process, Unexpected accidents can be prevented.

  Then, in a state where the fixing band 2 is wound along the treatment site A, the photocurable resin material 6 inserted between the shape retaining pieces 3 (gap 5) of the fixing band 2 is cured, respectively. The shape retaining piece 3 is kept in a displaced state, and the entire fixing band 2 is fixed along the treatment site A. Therefore, the periphery of the treatment site A is securely fixed and held by the fixing material 1.

  The fixing material 1 of this embodiment is, for example, a bandage that is wound around the outside of the fixing material 1 so as to be fixed and held as described above when the patient needs to check the state of the affected part for treatment. If 10 is removed, the wrapping force due to the bandage 10 is removed, so that it is loosened by forcibly releasing the external force. Therefore, if the both ends overlapped are pushed open, the fixing member 1 is released from the attached state and can be removed.

  Thus, since the fixing material 1 can be removed from the state where the affected part of the person to be treated is temporarily covered and held in a fixed state, the affected part can be treated and the treatment or the improved state of the affected part can be confirmed. After that, it is possible to return to the original state by reattaching the removed fixing material 1 to return it to the shape-retained state and wrapping and fixing it with the bandage 10 or the like. In short, the fixing material 1 of this embodiment is a gap 5 portion interposed between the shape-retaining pieces 3 in an infinitely small set of shape-retaining pieces 3 even when the photocurable resin material 6 is cured. Since the connecting piece 4 to be connected freely displaces and exhibits a cushioning function and possesses an appropriate elastic force, it is possible to change from a holding posture to the treatment site A to a releasing posture even after fixation. It is possible to return to the original position and perform the fixing function.

  Next, FIG. 4A shows a part of the fixed band of another embodiment, and the embodiment will be described.

  This embodiment basically has the same functions as those of the above-described embodiment, and therefore, the same or similar configurations as those of the above-described embodiment are denoted by the same reference numerals as those of the previous embodiment. Detailed description will be omitted.

  The fixing material 1 includes a fixing band 2 in which an infinite number of shape retaining pieces 3 a are arranged and integrally formed with a connecting piece 4 a, and a fiber medium in a gap 5 portion formed between the shape retaining pieces 3 a in the fixing band 2. It is the same structure as the above-described fixing material 1 in that a photo-curable resin material 6 is interposed, and a covering layer 7 (not shown) that covers both front and back surfaces of the fixing band 2 and seals the periphery is provided. However, the combination structure of the shape retaining piece 3a and the connecting piece 4a forming the fixed band 2 is different.

  As shown in FIGS. 4B and 4C, the shape retaining piece 3a is a regular triangular piece having a predetermined thickness, and is formed in a matrix so that the apexes are gathered with a narrow gap 5 interposed therebetween. The narrow connecting pieces 4a are connected in the middle in the thickness direction from the top end of one holding piece 3a to the diagonal position (top end) of the adjacent holding piece 3a. Therefore, the shape retaining pieces 3a adjacent to each other on the three sides around the shape retaining piece 3a are connected in the circumferential direction. Each holding piece 3a and connecting piece 4a are formed by integral molding. Then, in the gap 5 portion formed between the shape retaining pieces 3a, a fibrous material (for example, fiber yarn) is interposed as in the above embodiment, and the photocurable resin material 6 is contained in the fibrous material. It is held.

  The fixed band 2 formed in this way is formed by connecting the shape retaining pieces 3a made of innumerable equilateral triangles, as described above, connected by the narrow connecting pieces 4a on the three sides. Since it is kept in equilibrium in a state where it is connected to each other in three directions at 4a, it can move in the same direction as the external force when it receives an external force in the surface direction. Of course, when an external force is applied to one shape-retaining piece 3a, each shape-retaining piece 3a at the adjacent position connected by the connecting piece 4a is also moved and displaced in the same direction by being moved by the external force. Therefore, when the fixing material 1 is pressed from the outer periphery to the periphery of the portion to be processed A when wound in use in the above manner, it is easily displaced with respect to the partial unevenness, and as a result, the non-processing portion A It is possible to hug without floating along the circumference of the.

  In other words, the fixing material 1 of this embodiment can be wound around the shape of the treated part A to be treated, and the function as the fixing material 1 can be sufficiently exhibited. Then, by curing the photocurable resin material 6 attached to the fixing band 2 of the fixing material 1 that has been embraced by light irradiation, each shape-retaining piece 3a is restrained and maintained (fixed). .

  Also in the fixing material 1 of this embodiment, as in the fixing material 1 of the above-described embodiment, the shape retaining pieces 3a forming the fixing band 2 are linked together by connecting the gap 5 portions with the connecting pieces 4a. Therefore, even if the light curable resin material 6 fixed in the gap 5 is interposed, an appropriate elastic force can be obtained. It can be removed and removed once without disassembling, and it can be returned to its original state and fixed after treatment.

  In the embodiment, in the gap 5 formed between the countless shape retaining pieces 3 (3a) arranged in the fixed band 2, the connecting piece 4 (4a) connecting the shape retaining pieces 3 (3a) is located. By forming a space that opens on both the front and back sides at the part that does not, the photocurable resin material 6 that fills the gap 5 can be filled without creating voids in communication with both sides. In this case, the object can be achieved evenly, and at the same time, the fixing band 2 can be displaced without difficulty even when the fixing band 2 is partially unevenly displaced.

  In addition, the fixation band of the present invention is not only used for surgical treatment or treatment associated with care, but also for shape restoration, for example, for restoring damaged tree trunks or branches, or for repairing non-living items. It can also be used in applications where a necessary part is held and recovered or held for a certain period. In such a case, it can be used in substantially the same manner as when used for a human body or the like.

DESCRIPTION OF SYMBOLS 1 Fixing material 2 Flexible fixing band 3, 3a Shape-retaining piece 4, 4a Connection piece 5 Gap 6 Photocurable resin material 7 Covering layer

Claims (4)

  An infinite number of flat and small shape retaining pieces made of a light-transmitting resin material are connected to each other by a connecting piece at an intermediate portion in the thickness direction to form a flexible and fixed flexible fixed band having a predetermined size. The gap is formed between the shape-retaining pieces in the flexible fixing band and is filled with a photocurable resin material via a fibrous medium, and the flexible fixing band is transparent from both front and back surfaces. A photo-curing fixing material, characterized in that it is covered and sealed with a covering material made of a resin film.   Each of the shape retaining pieces is formed in a rectangular shape and connected by a connecting piece of the same material at a narrow interval, and can be displaced in both the vertical axis and the horizontal axis connected by the connecting piece portion. The photocurable fixing material according to 1.   Each shape-retaining piece is an equilateral triangle, and adjacent shape-retaining pieces connect the top end portion of one shape-retaining piece and the bottom end portion of the other shape-retaining piece at a middle portion in the thickness direction. The photocurable fixing material according to claim 1, wherein the photocurable fixing material is connected to each other by a piece and can be displaced in both directions of a vertical axis and a horizontal axis.   The flexible fixing band is formed such that a gap communicating with the front and back is formed at a place other than the connecting portion by the connecting piece between the shape retaining pieces, and the photocurable resin contained in the medium is formed through the gap portion. The photocurable fixing material according to claim 1, wherein the photocurable fixing material is communicated with the front and back sides.

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