JP5986823B2 - Wound dressing manufacturing method and manufacturing apparatus - Google Patents

Description

The present invention relates to a manufacturing method and a manufacturing apparatus of a wound dressing for protecting the surface of the affected part of the body.

  Wound dressings are used to treat or protect burns, abrasions, cuts, pressure ulcers (floor rubs) and other wounds. A conventional wound dressing material uses a material using a resin film having air permeability in order to prevent stuffiness (Patent Documents 1 and 2). Since the resin film having air permeability is processed so as to have air permeability in the manufacturing stage of the film itself, the entire covering material has uniform air permeability according to specifications. FIG. 24 shows an example of a conventional example. The wound dressing 101 is composed only of the thermoplastic resin film 102, and the ventilation micropores 105 are formed over the entire surface of the thermoplastic resin film 102. The adhesive 106 is pasted so as to cover the affected area A1. FIG. 25 is an enlarged view of the main part of FIG. 24. In the affected area A1 covered with the wound dressing 101, the infiltrating liquid L1 exudes from the body.

Japanese Patent Laid-Open No. 3-146057 JP-A-6-202

  By the way, the area covered by the wound dressing material is not limited to the affected area of the body and extends to the periphery of the affected area. However, the degree of breathability required for treatment and hygiene differs between the affected area and the outside area. There are many cases. For example, in the region outside the affected area, it is often attached to the skin with an adhesive or the like, and relatively large breathability is required from the viewpoint of prevention of stuffiness. On the other hand, in the affected area, small air permeability or airtightness is often required from the viewpoint of preventing bacterial infection. Therefore, as shown in FIG. 24 and FIG. 25, in the wound dressing material 101 in which the micropores 105 are uniformly formed over the entire surface, the affected area corresponding region S1 and the affected area outside area S2 covering the affected area A1, respectively. It is difficult to satisfy the required air permeability. Therefore, in the structure as shown in FIGS. 24 and 25, when the amount of the infiltrating liquid L1 that exudes from the affected area A1 gradually increases after use for a certain period of time, the infiltrating liquid LI becomes the thermoplastic resin film 2 as shown in FIG. Leaks out of the wound dressing 101 from the micropore 105 in the affected area S1. Such leakage of the infiltrating liquid L dries the affected area A1 and delays healing of the affected area.

  An object of the present invention is to provide a wound dressing that can ensure the breathability according to the respective needs of the affected area and the affected area. It is another object of the present invention to provide a method and a manufacturing apparatus that can manufacture wound dressings having different breathability according to the shape and situation of an affected part at a medical site.

The wound dressing obtained by the production method and the production apparatus according to the present invention is a wound dressing having at least a thermoplastic resin film on the surface, and the thermoplastic resin film has an affected part corresponding to the affected part shape on the body surface. A large number of micropores are formed so as to have different aperture ratios in the corresponding area and the external area corresponding to the affected area around the affected area.

  As a specific example of the aperture ratio of the micropores, the aperture ratio of the affected area corresponding area is set to be smaller than the aperture ratio of the affected area corresponding area. Furthermore, the aperture ratio of the affected area corresponding region can be set to zero.

  As another specific example, the aperture ratio of the affected area corresponding region can be set larger than the aperture ratio of the affected area corresponding area depending on the situation of the affected area.

The method for producing a wound dressing according to the present invention is a method for producing a wound dressing having at least a thermoplastic resin film on the surface, and acquires affected part information including the affected part shape on the body surface by the affected part information acquisition means, Based on the affected area information acquisition step to be converted into data and the affected area information data input from the affected area information acquisition means, the affected area corresponding to the affected area shape on the thermoplastic resin film, and the affected area around the affected area corresponding area And a processing step of heating and drilling a large number of fine holes using a thermal head so as to have different aperture ratios in the outer corresponding region. Preferably, the affected part information acquisition step includes a reading step of reading the shape of the affected part, and a step of inputting each aperture ratio of the micropores in the affected part corresponding region and the affected part corresponding region based on the read affected part shape; Is included.

The wound dressing manufacturing apparatus according to the present invention is a wound dressing manufacturing apparatus having at least a thermoplastic resin film on the surface thereof, and acquires affected part information including the affected part shape on the body surface and converts it into data. Based on the data on the affected area shape input from the information acquisition means and the affected area information acquisition means, the affected area corresponding area corresponding to the affected area shape and the affected area outside the affected area corresponding to the affected area corresponding area have different aperture ratios. As described above, the thermoplastic resin film is provided with covering material processing means for heating and drilling fine holes using a thermal head . Preferably, the affected area information acquisition means includes an affected area shape acquisition unit that reads the affected area shape, and an aperture ratio input unit that inputs each aperture ratio of the micropores in the affected area corresponding area and the affected area outside area. .

According to the wound dressing material obtained by the manufacturing method and the manufacturing apparatus according to the present invention, different breathability can be ensured for the affected area of the body and the outside area of the affected area depending on the respective needs. Accordingly, the affected area to be covered and the area outside the affected area can be kept in good condition with respect to ventilation.

  For example, wet therapy is based on the principle that the affected area is not dried, and for that purpose, it is required to make the air permeability of the affected area extremely low or to be sealed. In such wet therapy, the affected area covered with the affected area is kept in a moist state by lowering the aperture ratio of the micropores in the affected area of the wound dressing or by setting it to 0. In the corresponding region, sufficient air permeability can be secured to prevent stuffiness.

  On the other hand, it may be better to dry the affected area, such as athlete's foot, and in this case, the affected area can be effectively kept dry by increasing the aperture ratio of the affected area and increasing the air permeability. .

  In the manufacturing method and the manufacturing apparatus according to the present invention, a wound dressing material can be manufactured immediately in accordance with the shape of an affected part of a patient in a hospital or a clinic, so for each patient, quickly and accurately, Wound dressings can be used.

It is a perspective view which shows an example of a body affected part. 1 is a plan view of a first embodiment of a wound dressing according to the present invention. It is a longitudinal cross-sectional view of the wound dressing of FIG. FIG. 4 is an enlarged longitudinal sectional view of a main part of FIG. 3. It is a longitudinal cross-sectional view of the same wound dressing material as FIG. 3 which shows the infiltration state in use. It is a block diagram which shows an example of the manufacturing apparatus of a wound dressing material. It is an external appearance perspective view of one specific example of the manufacturing apparatus of FIG. It is a longitudinal cross-sectional view of 2nd Embodiment of the wound dressing which concerns on this invention. FIG. 9 is an enlarged longitudinal sectional view of a main part of FIG. 8. It is a longitudinal cross-sectional view of the same wound dressing as FIG. 8 which shows the infiltration state in use. It is a longitudinal cross-sectional view of 3rd Embodiment of the wound dressing which concerns on this invention. FIG. 12 is an enlarged longitudinal sectional view of a main part of FIG. 11. It is a longitudinal cross-sectional view of the same wound dressing material as FIG. 11 which shows the infiltration state in use. It is a longitudinal cross-sectional view of 4th Embodiment of the wound dressing material which concerns on this invention. FIG. 15 is an enlarged longitudinal sectional view of a main part of FIG. 14. It is a longitudinal cross-sectional view of the same wound dressing material as FIG. 14 which shows the infiltration state in use. It is a longitudinal cross-sectional view of 5th Embodiment of the wound dressing which concerns on this invention. FIG. 18 is an enlarged longitudinal sectional view of a main part of FIG. 17. It is a longitudinal cross-sectional view of the same wound dressing material as FIG. 17 which shows the infiltration state in use. It is an external appearance perspective view of another specific example of the manufacturing apparatus of a wound dressing material. It is an external appearance perspective view of another specific example of the manufacturing apparatus of a wound dressing. It is a top view of other embodiments of a wound dressing according to the present invention. It is a top view of other embodiments of a wound dressing according to the present invention. It is a longitudinal cross-sectional view of the conventional wound dressing. FIG. 25 is an enlarged longitudinal sectional view of a main part of FIG. 24. It is a longitudinal cross-sectional view of the same wound dressing material as FIG. 24 which shows the infiltration state in use.

[First embodiment of wound dressing]
FIG. 1 shows an example of a body affected part, and FIGS. 2 to 5 show a wound dressing according to the present invention manufactured for the affected part of FIG. Based on these drawings, a first embodiment of a wound dressing according to the present invention will be described.

  FIG. 1 shows an affected area A1 of the body surrounded by a virtual line and hatched. The shape (outline) of the affected area A1 extends from the base part of the thumb and index finger to the tip side of both fingers so as to spread in a V shape, but is divided on the way. In order to perform wet treatment such as burns, it is required to cover the affected area A1 in a hermetically sealed state without air permeability, while the outside area of the affected area should ensure air permeability in order to prevent skin diseases caused by stuffiness. It is required to be coated.

  FIG. 2 is a wound dressing 1 manufactured so as to correspond to the shape of the affected part in FIG. The wound dressing 1 is composed of only a thermoplastic resin film 2. In the thermoplastic resin film 2, the open area ratio is different between the affected part corresponding region S 1 having a shape substantially corresponding to the shape of the affected part region A 1 in FIG. 1 and the affected part corresponding region S 2 surrounding the affected part corresponding region S 1. A large number of fine holes 5 are formed.

  The outer peripheral shape of the wound dressing 1, that is, the outer peripheral shape of the thermoplastic resin film 2 is a shape that is cut so as to surround the affected part corresponding region S <b> 1 with a margin. The external corresponding area S2 is secured. In the first embodiment, the outer peripheral shape of the wound dressing 1 is generally U-shaped.

  FIG. 3 shows a state of the wound dressing 1 immediately after being applied so as to cover the affected area A1 of the body. The arrangement state of the micropores 5 will be described. In the region outside the affected area S2, in order to ensure sufficient air permeability, a large number of micropores 5 with a predetermined aperture ratio, for example, an aperture ratio of about 10% to 30%. Is formed. On the other hand, no micropore is formed in the affected part corresponding region S1 in order to prevent the affected part from drying. That is, the aperture ratio is zero. The aperture ratio of the microscopic hole 5 in the external area corresponding region S2 is set according to the situation of the affected area. Moreover, the adhesive 6 for affixing on a body is apply | coated to the single side | surface (surface on the affected part side) of the external area | region corresponding | compatible area | region S2 so that the micropore 5 may not be plugged up. .

  As the thermoplastic resin film 2, for example, a stretched polyethylene terephthalate (PET resin) film or a polyolefin film is used. When a thermal head for stencil plate making of a stencil printing machine is used for perforating processing of a coating material processing apparatus described later, preferably, a polyethylene terephthalate film having a thickness of 1.5 to 3 μm is used. A film having a thickness of 3 to 10 μm is used. In addition to the polyethylene terephthalate film or polyolefin film, polyester resin, polyethylene resin, polyvinyl chloride resin, polyvinylidene chloride resin, polymethylpentene resin, polypropylene resin, polyethylene naphthalate resin, polyvinyl alcohol resin, nylon 6, etc. No film is available.

  FIG. 4 is an enlarged vertical cross-sectional view of the main part of FIG. 3, and the micropore 5 in the outside affected area S <b> 2 is formed with a diameter of about several tens μm to 50 μm. Further, each microhole 5 is formed by thermal perforation, and therefore, the peripheral edge 5a at both ends of the microhole 5 has a round shape due to contraction of a film melted by heat during processing.

(Operational effects of the first embodiment of the wound dressing 1)
First, the usage method of the wound dressing 1 is demonstrated. As shown in FIG. 3, the affected area A1 of the wound dressing 1 is superimposed on the affected area A1 of the body, and the wound dressing 1 is applied to the body with the adhesive 6 applied to the affected area S2. That is, the wound dressing 1 is affixed so as to cover the affected area A1 of the body and its periphery.

  FIG. 5 shows the state of the affected area and the wound dressing 1 after a certain period of time has passed since the wound dressing 1 is applied as shown in FIG. 3, and the infiltration that has oozed out and accumulated from the affected area compared to the state of FIG. The liquid (leaching liquid) L1 is increasing. However, since the affected area A1 is maintained in a substantially sealed state by the affected area corresponding area S1 having an aperture ratio of 0, the surface of the affected area is maintained in a state where the infiltrating liquid L1 is accumulated. Thereby, the affected area A1 is maintained in a wet state, and drying of the affected area is prevented. In addition, invasion of bacteria from the outside can be prevented.

  As a result, the sanitary condition of the affected area is maintained, as well as the occurrence of a scab on the affected area, the pain caused by the scab is suppressed, and the regeneration of the wound is promoted.

  In addition, since the micropores 5 are formed by thermal perforation processing, the opening edges 5a at both ends of the micropores 5 have a round shape. Therefore, when the thermoplastic resin film 2 comes into contact with the skin, a smooth feel is obtained. Therefore, the user is not uncomfortable. In addition, the opening edge 5a rounded by heat shrinkage has high strength and is not easily broken from the opening edge 5a. By the way, in the structure where the opening end of the fine hole is not rounded, there is an edge at the opening edge of the fine hole. In many cases, it is uncomfortable for the user and is easily broken from the edge of the opening edge.

[Example of manufacturing apparatus and manufacturing method of wound dressing 1]
FIG. 6 is a block diagram illustrating an example of a manufacturing apparatus for the wound dressing 1. The apparatus for manufacturing the wound dressing 1 includes an affected area information acquisition means 31 for acquiring various types of information on the affected area of the body, and a covering material processing means for performing thermal drilling, cutting and adhesive application of the thermoplastic resin film 2 of the wound dressing 1. 41.

  The affected part information acquisition means 31 uses the affected part shape acquisition part (reading part) 32 for acquiring the affected part of the body and the surrounding shape, and uses the acquired affected part shape to specify the contour of the affected part and the peripheral cutting shape around it. The diseased part information input unit 33, the aperture ratio input unit 34 for inputting the respective aperture ratios of the microscopic holes 5 in the diseased part corresponding region S1 and the external part of the affected part S2, the affected part information such as the affected part shape, the aperture ratio, etc. A first control unit 35 that performs arithmetic processing, and an affected part information data output unit 36 that outputs the affected part information that has been converted into data.

  The dressing material processing means 41 includes an affected area information data acquisition unit 42 for acquiring affected area information data from the affected area information data output unit 36 of the affected area information acquisition means 31, and a specified aperture ratio in a specified area of the wound dressing 1. The punching portion 43 for thermally punching the fine holes 5, the cutting portion 44 for cutting the wound dressing 1 along the designated outer peripheral shape, and the adhesive 6 are applied in a dotted or linear manner to the designated region. An adhesive application unit 45, and a second control unit 46 that controls the operations of the punching processing unit 43, the cutting processing unit 44, and the adhesive application unit 45 based on affected area information data are provided.

  FIG. 7 shows a specific example of the manufacturing apparatus. The manufacturing apparatus includes a digital camera 38, a personal computer (hereinafter referred to as “PC”) 39, a coating material processing apparatus (coating material processing means 41), It is composed of The affected part information acquisition means 31 is configured by the digital camera 38 and the PC 39.

  The digital camera 38 captures the affected area of the body and the surrounding shape, and inputs the image data to the PC, and functions as the affected area shape acquisition unit (reading unit) 32.

  The PC 39 includes an affected area information input unit 33, an aperture ratio input unit 34, a first control unit 35, and an affected area information data output unit 36 in the affected area information acquisition unit 31. Specifically, based on the affected part image projected on the screen 39a, the affected part shape and the outer periphery cutting shape are input by touch panel operation or mouse operation, and further, by key operation or mouse operation on the key operation panel 39b, Various kinds of affected area information such as the aperture ratio of each area, the application area and the application amount of the adhesive 6 are input.

  The coating material processing apparatus is a coating material processing means 41. Hereinafter, the coating material processing apparatus will also be described with reference numeral 41. The dressing processing apparatus 41 includes the affected part information data acquisition unit 42, a perforation processing unit 43, a cutting processing unit 44, an adhesive application unit 45, and a second control unit 46, and conveys the wound dressing 1 before processing. A roller-type transport unit that transports in a direction (front of the apparatus) F is provided.

  As the perforating section 43, for example, a thermal perforation mechanism using a thermal head for stencil printing of a stencil printing machine is provided, and as the cutting section 44, for example, a laser cutting mechanism using laser light is provided, As the adhesive application part 45, for example, an inkjet nozzle used in an ink jet printer is provided, and the adhesive is sprayed in a dot shape from the ink jet.

A specific manufacturing method in the medical field will be described.
In FIG. 7, an operator such as a doctor, a nurse, or a laboratory technician takes an image of the affected area of the patient and its surroundings with the digital camera 38 and inputs the image data to the PC 39. Then, based on the image data, an image of the affected area and its surroundings is displayed on a touch panel screen 39a. This operation is an affected part shape reading process in the affected part information acquisition process.

  Next, the operator traces the contours of the affected area image on the screen 39a by, for example, a mouse operation or a touch operation with a touch pen, and the outlines of the affected area corresponding area S1, the affected area corresponding area S2, and the peripheral cutting area. Further, by converting the magnification so that the affected part image is the same size as the actual affected part, information on various shapes is input and stored in the first control unit 35 in the PC 39. Also, the application area of the adhesive 6 and the like are input. This work becomes an affected part shape input process and other affected part information input processes among the affected part information acquisition processes.

  In addition to the information on the shape of the affected part and the outer peripheral cutting shape, the operator inputs the aperture ratio of the microhole 5 in the affected part corresponding region S1 and the affected part corresponding region S2 by key operation or mouse operation on the operation panel 39b. 1 in the control unit 35. Specifically, the element set based on the input aperture ratio is set to the number of perforations of the fine holes 5 for each region, but in addition to this, the inner diameter or the area of the fine holes 5 may be used. A combination of the number of perforations, the inner diameter and the area of the fine holes 5 may be used. Furthermore, the strength of the drilling energy can be set. This operation is an aperture ratio input step in the affected area information acquisition step.

  The affected area information collected and stored as data in the first control unit 35 is transmitted from the affected area information data output unit 36 in the PC 39 to the affected area information data acquisition unit 42 in the covering processing apparatus 41.

  The affected area information is input to the affected area information data acquisition unit 42 of the dressing processing apparatus 41 and the data is sent to the second control unit 46.

  The operator inserts an unprocessed covering material from a rear material insertion port (not shown) of the covering material processing apparatus 41 and operates a manufacturing start button and the like. Thereby, an unprocessed wound dressing material is conveyed ahead (arrow F direction) by a conveyance part, and various processes are implemented in this conveyance process. That is, it is a processing step. Specifically, the microhole 5 is drilled in the outside area S1 to have a predetermined aperture ratio by the drilling section 43 using a thermal head, and then laser light is used. The cut processing section 44 cuts the outer periphery of the affected area S2 so as to form the outer periphery, and the inkjet pressure-sensitive adhesive application section 45 applies the adhesive 6 to the affected area S2 in a dotted manner. The completed wound dressing 1 (FIG. 2) is discharged from the front discharge portion of the dressing processing apparatus 41.

  According to the manufacturing apparatus and the manufacturing method as described above, the wound dressing 1 corresponding to the affected area of the patient can be easily manufactured by a doctor or a nurse or the like at a medical site such as an examination room.

[Second Embodiment of Wound Dressing]
FIGS. 8 to 10 show a second embodiment of the wound dressing 1 according to the present invention, FIG. 8 is a longitudinal sectional view, FIG. 9 is an enlarged longitudinal sectional view of a main part, and FIG. 10 is in use. It is a longitudinal cross-sectional view which shows an infiltration state. A structure different from FIGS. 3 to 5 is that a support material (support layer) 3 made of gauze or non-woven fabric is provided on one surface of the thermoplastic resin film 2 (on the side opposite to the affected part side). Other structures are the same as those in FIGS. 3 to 5, and the same portions are denoted by the same reference numerals.

  As shown in FIG. 8, the support material 3 extends over the entire surface of the wound dressing 1. When the wound dressing 1 is affixed to the affected area, it is affixed so that the thermoplastic film 2 is located on the affected area side.

  The thickness of the support material 3 is several μm to several tens of μm. By providing the support material 3 having such a thickness, the entire wound dressing 1 is given rigidity (strength of waist), and handling properties are improved. I am letting. In addition, the support material 3 protects the thermoplastic resin film 2 against external pressure or impact, and the impact on the affected area can be weakened by a cushioning action.

  As in the first embodiment, the thermoplastic resin film 2 does not have the micropores 5 formed in the affected area corresponding region S1 and the micropores 5 only in the affected area S2. Since the area of the gap between the fibers constituting 3 is large, the opening ratio of the thermoplastic resin film 2 by the fine holes 5 is not affected.

[Third embodiment of wound dressing 1]
FIG. 11 thru | or FIG. 13 has shown 3rd Embodiment of the wound dressing 1 which concerns on this invention, FIG. 11 is a longitudinal cross-sectional view, FIG. 12 is an expanded longitudinal cross-sectional view of the principal part, FIG. It is a longitudinal cross-sectional view which shows an infiltration state. The structure different from FIG. 3 to FIG. 5 is that a support material (support layer) 3 made of gauze or nonwoven fabric is provided on one surface (surface on the affected area) of the thermoplastic resin film 2, and the surface on the affected area side of the support material 3 is provided. Furthermore, the auxiliary thermoplastic resin film 4 having the fine holes 7 on the entire surface is provided. The auxiliary thermoplastic resin film 4 is made of the same material as the thermoplastic resin film 2, and a polyethylene terephthalate (PET resin) film having a thickness of 1.5 to 3 μm or a polyolefin film having a thickness of 3 to 10 μm is used. ing.

  The thickness of the support material 3 is several μm to several tens of μm. By providing a support layer having such a thickness, the entire wound dressing 1 is given rigidity and increased strength. Easy handling. In addition, the impact on the affected area is reduced by a cushioning action against external pressure.

  The fine holes 7 formed on the entire surface of the auxiliary thermoplastic resin film 4 have substantially the same diameter as the fine holes 5 of the thermoplastic resin film 2, but are the same as or larger than the maximum opening ratio of the thermoplastic resin film 2. The fine holes 7 are formed with a large aperture ratio. Further, the micropores 7 of the auxiliary thermoplastic resin film 4 may be formed at a medical site in the same manner as the micropores 5 of the thermoplastic resin film 2, but are formed in advance at a film manufacturing factory or the like, and the support material 3. It is also possible to use what is pasted on. Furthermore, micropores 7 having a diameter larger than the micropores 5 of the thermoplastic resin film 2 can be formed in the auxiliary thermoplastic resin film 4.

  As shown in FIG. 13, when the wound dressing 1 is applied and used for a certain period of time, the infiltrating liquid L1 exuding from the affected area passes through the micropores 7 of the auxiliary thermoplastic resin film 4 in the affected area corresponding region S1. Although infiltrating into the support 3, leakage of the infiltrating liquid L <b> 1 can be prevented by the affected part corresponding region S <b> 1 of the thermoplastic resin film 2 located at the outermost part, and the affected part can be kept in a wet state.

[Fourth Embodiment of Wound Dressing 1]
FIGS. 14 to 16 show a fourth embodiment of the wound dressing 1 according to the present invention, FIG. 14 is a longitudinal sectional view, FIG. 15 is an enlarged longitudinal sectional view of a main part, and FIG. 16 is in use. It is a longitudinal cross-sectional view which shows an infiltration state. Similar to the structure shown in FIGS. 8 to 10, the wound dressing 1 has a structure in which a support material 3 is sandwiched between a thermoplastic resin film 2 and an auxiliary thermoplastic resin film 4. The structure different from that shown in FIGS. 8 to 10 is a structure in which the auxiliary thermoplastic resin film 4 is also partially formed with micropores 7, and the adhesive 6 is applied to the thermoplastic resin film 2, so The resin film 2 is attached to the body with the affected part side facing.

  In this embodiment, in the auxiliary thermoplastic resin film 4, the micropores 7 are formed in the outside affected area corresponding region S <b> 2 in the same arrangement as the thermoplastic resin film 2, and the micropores 7 are also formed in the affected area corresponding region 1. Has been. However, in the affected area corresponding region S1 and the affected area outside corresponding region S2, the fine holes 7 are not formed in the vicinity of the outer periphery of the affected area corresponding region S1.

  The wound dressing 1 of this embodiment is attached to the body with the thermoplastic resin film 2 side facing the affected part.

  As shown in FIG. 16, when the wound dressing 1 is applied and used for a certain period of time, the infiltrating liquid L1 exuding from the affected area passes through the micropores 5 of the thermoplastic resin film 2 at the outer peripheral end of the affected area S1. And infiltrate the support 3. In contrast, the region of the thermoplastic resin film 2 where the micropores 5 are not formed and the region of the auxiliary thermoplastic resin film 4 where the micropores 7 are not formed overlap in the affected area corresponding region S1. Therefore, the auxiliary thermoplastic resin film 4 positioned at the outermost portion can prevent the infiltrating liquid L1 from leaking out and keep the affected area wet.

[Fifth Embodiment of Wound Dressing 1]
FIGS. 17 to 19 show a fifth embodiment of the wound dressing 1 according to the present invention, FIG. 17 is a longitudinal sectional view, FIG. 18 is an enlarged longitudinal sectional view of a main part, and FIG. 19 is in use. It is a longitudinal cross-sectional view which shows an infiltration state. A structure different from FIGS. 3 to 5 is that a gauze or non-woven fabric 8 is provided on one surface (surface on the affected area side) of the affected area corresponding region S1 of the thermoplastic resin film 2. Other structures are the same as those in FIGS. 3 to 5, and the same portions are denoted by the same reference numerals.

  When the wound dressing 1 is applied to the body, the gauze or the nonwoven fabric 8 is applied to the affected area and applied.

  As shown in FIG. 19, when the wound dressing 1 is used for a certain period of time after the wound dressing 1 is applied, the infiltrating liquid L <b> 1 oozing out from the affected area does not spread greatly because it infiltrates into the gauze or the nonwoven fabric 8.

[Another embodiment of the apparatus for manufacturing the wound dressing 1]
FIG. 20 is an external perspective view showing another embodiment of the device for manufacturing the wound dressing 1. The manufacturing apparatus includes a tablet terminal (for example, Eyepad (registered trademark)) 50 having a digital camera function and a PC function, and a covering material processing apparatus 41. The tablet terminal 50 constitutes the affected area information acquisition means 31 of FIG. That is, it has functions of an affected area information input unit 33, an aperture ratio input unit 34, a first control unit 35, and an affected area information data output unit 36. The covering material processing apparatus 41 has the same function as the covering material processing apparatus of FIG. In this manufacturing apparatus, the affected part shape is displayed on the screen 50a of the tablet terminal 50, and information on the affected part corresponding region S1 and the outer peripheral cutting shape, the aperture ratio, and the like are input by, for example, a touch operation on the screen 50a of the tablet terminal 50.

[Another embodiment of the apparatus for manufacturing the wound dressing 1]
FIG. 21 is a diagram showing still another embodiment of the device for manufacturing the wound dressing 1. The manufacturing apparatus includes a digital camera 38 and an affected area information input / covering material processing apparatus 51 having the functions of the PC 39 and the covering material processing apparatus 41 of FIG. Therefore, the affected area information input / dressing material processing apparatus 51 is provided with a touch panel screen 51a and an operation unit 51b having various input keys. That is, the information on the affected area corresponding region S1 and the outer periphery cutting shape, the aperture ratio, and the like are input using the affected area information input / covering material processing apparatus 51.

[Other embodiments]
(1) FIG. 22 shows another embodiment of the wound dressing 1, and the micropores 5 are formed in both the affected area corresponding region S1 and the affected area outside corresponding region S2. The aperture ratio of the affected area corresponding area S1 is set larger than the aperture ratio of the affected area corresponding area S2. That is, the distribution density of the fine holes 5 in the affected area corresponding region S1 is larger than the distribution density of the fine holes 5 in the affected area corresponding area S2.

  In such a wound dressing 1, the breathability of the affected area is ensured, and drying of the affected area is promoted. Therefore, it is suitable for the treatment of drying the affected area like athlete's foot.

(2) FIG. 23 shows still another embodiment of the wound dressing 1, in which the micropores 5 are formed only in the affected area corresponding region S1, and the micropores are not formed in the affected area corresponding region S2. Structure.

(3) Instead of the inkjet application mechanism, a transfer system that transfers the adhesive from a roller, a liquid application system, an anilox roller transfer, or the like can be used as the adhesive application unit.

(4) As the cutting part, in addition to the laser cutter, a cutting mechanism capable of mechanically cutting a curve with a fully automatic plotter, a guillotine cutter composed of upper and lower blades and a round blade slitter cut into a rectangle. A cutting mechanism or the like can be used. Fully automatic plotters operate at low speed but can automatically cut curves freely. Although the guillotine cutter operates at high speed, it cannot be cut into a curved shape, and therefore, after the cutting process, the curve is finished by hand.

(5) Instead of thermal drilling using a thermal head, a punching mechanism using a roller having a protrusion can be used as the punching section, and a drilling mechanism using laser light is also possible.

(6) In the above-described manufacturing apparatus, the dressing processing apparatus (dressing material processing means) includes a cutting process part and an adhesive application part for cutting the outer periphery of the wound dressing material, but includes only a punching process part. It is also possible to perform the peripheral cutting and the application of the adhesive manually.

(7) The configuration of the wound dressing is not limited to that shown in the above-described embodiment, and has a thermoplastic resin film at least on the surface, and the opening ratio is different between the affected area corresponding area and the affected area outside corresponding area. Anything is acceptable. For example, the structure which has support materials (support layer) other than gauze and a nonwoven fabric may be sufficient. Moreover, even if it is the structure of two or more layers provided in the single side | surface of the thermoplastic resin film, combining suitably from another support materials other than auxiliary thermoplastic resin film, gauze, a nonwoven fabric, and a gauze / nonwoven fabric. good.

DESCRIPTION OF SYMBOLS 1 Wound dressing material 2 Thermoplastic resin film 3 Support body 4 Auxiliary thermoplastic resin film 5 Micropore 31 Affected part information acquisition means 32 Affected part shape acquisition part 33 Affected part information input part 38 Digital camera (an example of affected part shape acquisition part)
39 Personal computer (example of affected area information input unit)
41 Covering Material Processing Means 42 Affected Information Data Acquisition Unit 43 Perforation Processing Unit 44 Cutting Processing Unit 45 Adhesive Application Unit 50 Tablet Terminal

Claims (6)

A method for producing a wound dressing having at least a thermoplastic resin film on its surface,
The affected area information acquisition step including acquiring the affected area information including the affected area shape of the body surface by the affected area information acquisition means,
Based on the affected area information data input from the affected area information acquisition means, different opening ratios in the affected area corresponding area corresponding to the affected area shape and the outside affected area surrounding the affected area corresponding area on the thermoplastic resin film And a processing step of heating and drilling a large number of micropores using a thermal head . In the manufacturing method of the wound dressing according to claim 1,
The affected area information acquisition step includes:
A reading process for reading the shape of the affected area;
And a step of inputting respective aperture ratios of the micropores in the affected area corresponding area and the affected area outside corresponding area based on the read affected area shape.   In the manufacturing method of the wound-dressing material according to claim 1 or 2,
  The said process process is a manufacturing method of the wound dressing material which includes the application | coating process which apply | coats an adhesive with the inkjet to the said external region corresponding area | region. An apparatus for producing a wound dressing having at least a thermoplastic resin film on the surface,
Affected area information acquisition means for acquiring affected area information including the affected area shape of the body surface and converting it to data;
Based on the data on the affected part shape input from the affected part information acquisition means, the heat affected area corresponding to the affected part shape and the area outside the affected part around the affected part corresponding area have different aperture ratios. An apparatus for manufacturing a wound dressing, comprising: a plastic material film, and a dressing processing means that heats and drills micropores using a thermal head . In the manufacturing apparatus of the wound-dressing material according to claim 4,
The affected area information acquisition means includes:
An affected part shape acquisition unit for reading the affected part shape;
An apparatus for manufacturing a wound dressing, comprising: an aperture ratio input unit that inputs each aperture ratio of the micropores in the affected area corresponding area and the affected area corresponding area.   In the wound dressing manufacturing apparatus according to claim 4 or 5,
  The said dressing material processing means is an apparatus for manufacturing a wound dressing, comprising an adhesive application part that applies an adhesive to the outside-affected area corresponding region by inkjet.

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