WO2023054670A1 - Medical dressing material - Google Patents

Medical dressing material Download PDF

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Publication number
WO2023054670A1
WO2023054670A1 PCT/JP2022/036676 JP2022036676W WO2023054670A1 WO 2023054670 A1 WO2023054670 A1 WO 2023054670A1 JP 2022036676 W JP2022036676 W JP 2022036676W WO 2023054670 A1 WO2023054670 A1 WO 2023054670A1
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WO
WIPO (PCT)
Prior art keywords
sheet
adhesive
adhesive portion
skin
dressing
Prior art date
Application number
PCT/JP2022/036676
Other languages
French (fr)
Japanese (ja)
Inventor
青仁 池田
悟 仲本
達耶 伊藤
Original Assignee
リバテープ製薬株式会社
ニプロ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by リバテープ製薬株式会社, ニプロ株式会社 filed Critical リバテープ製薬株式会社
Publication of WO2023054670A1 publication Critical patent/WO2023054670A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/02—Adhesive bandages or dressings

Definitions

  • the present invention relates to a medical dressing that secures a catheter and covers and protects the puncture site when instillation or the like is performed.
  • a puncture site into which a catheter is inserted for an infusion or the like needs to be firmly fixed in a state of being punctured into the skin.
  • the needle hub and tube of the indwelling catheter can be fixed, and the puncture site can be hygienically protected to prevent infection.
  • Patent Document 1 discloses such a medical dressing material.
  • Patent Document 1 has a configuration in which a transparent urethane film having an adhesive layer on the back surface is attached to the surface of a nonwoven fabric sheet having a window portion (viewing portion) in the central portion and an adhesive layer on the back surface. It is disclosed that the back surface of the non-woven fabric sheet is attached to the skin by covering the puncture site of the catheter.
  • the present invention has been made in view of the above-mentioned circumstances, and an object thereof is to provide a medical dressing that can prevent incidents such as withdrawal of the needle hub of the catheter during replacement.
  • the present invention comprises a dressing body having a back surface on the skin side and a surface opposite to the back surface, and a release sheet that is detachably attached to the back surface, and the back surface has an adhesive portion and a non-adhesive portion. and wherein the non-adhesive portion has a width of 40 mm or more, and the adhesive portion is formed so as to surround the non-adhesive portion.
  • the non-adhesive portion may have higher flexibility than the adhesive portion.
  • the non-adhesive portion when the dressing body is attached to the skin so as to cover the needle hub, the non-adhesive portion is preferentially deformed. To prevent a situation in which stress from a needle hub hardly acts on an adhesive part and the adhesive part is fixed in a wrinkled state due to deformation.
  • the film sheet may be made of a stretchable film, and the non-adhesive portion may be formed to have higher stretchability than the adhesive portion.
  • the non-adhesive portion in contact with the needle hub extends to cover the needle hub with the non-adhesive portion.
  • the dressing body may be composed of a film sheet and a skin-fixing sheet with a cut-off center, and the skin-fixing sheet may be bonded to the film sheet between the opposing surfaces.
  • the adhesive part and the non-adhesive part can be made a single sheet, or the adhesive part can be a single sheet structure and the non-adhesive part a multi-sheet structure. It is possible to achieve more stable adhesion of the adhesive part by using a structure.
  • the surface of the skin-fixing sheet is in contact with the film sheet, and the back surface of the skin-fixing sheet forms a contact surface that contacts the skin.
  • the adhesive area can be efficiently increased, and the adhesive portion is suitable for the dressing body having the non-adhesive portion. can be realized.
  • the film sheet and the skin-fixing sheet are fixed by an adhesive layer provided on the skin-fixing sheet, and the skin-fixing sheet is a nonwoven fabric sheet having adhesive layers on both sides, and the film
  • the sheet may be a urethane film.
  • a urethane film with no adhesive layer is used, better breathability and moisture permeability can be obtained than when using an existing urethane film with a polyurethane adhesive layer.
  • the present invention may further include a fixing tape separable from the dressing body.
  • a fixing tape separable from the dressing body.
  • a part of the adhesive part floats from the skin due to the presence of the tube. be done.
  • the fixing tape is provided, after the dressing body is attached, the fixing tape can be further attached to the side where the tube is present to reinforce the adhesive strength, and the dressing can be used for a long time. Even if it is fixed, the dressing body can be made difficult to peel off from the skin.
  • the present invention may further include a holding sheet detachably attached to the surface of the dressing main body, and the holding sheet may have a holding portion protruding from the external shape of the dressing main body.
  • the operation of attaching the dressing body can be performed without touching the adhesive part with the finger, and when the dressing body is attached to the skin, the finger touches the adhesive part, resulting in the adhesive effect due to sebum. It is possible to prevent a situation in which the
  • the peeling resistance of the holding sheet to the dressing body may be set to be greater than the peeling resistance of the release sheet to the dressing body. In this case, when the user peels off the release sheet from the dressing main body, it is possible to reduce the situation in which the holding sheet is peeled off from the dressing main body.
  • the width dimension of the non-adhesive portion is longer than the width dimension of the adhesive portion on at least one of the vertical axis and the horizontal axis that are perpendicular to each other so as to pass through the center of the dressing body.
  • the width dimension from the outer end of the adhesive portion to the outer end of the adhesive portion may be 10 mm or more. If the width dimension of the non-adhesive portion is longer than the width dimension of the adhesive portion, it is possible to reduce the situation in which the needle hub comes into contact with the adhesive portion.
  • the width from the outer end of the non-adhesive part to the outer end of the adhesive part is 10 mm or more, so that the width dimension of the non-adhesive part is widened.
  • the adhesive part is less likely to wrinkle, stable adhesion is realized, and the situation that the dressing main body peels off from the skin is reduced.
  • the present invention provides a non-woven fabric sheet having a window portion opened at an arbitrary position and having adhesive layers on both sides, and a non-adhesive portion having a non-adhesive portion and non-peelable adhered to the surface of the non-woven fabric sheet.
  • the present invention also relates to a medical dressing comprising a transparent urethane film and a release sheet detachably adhered to the back surface of the nonwoven fabric sheet.
  • the non-woven fabric sheet when the release paper is peeled off from the back surface of the non-woven fabric sheet at the time of use, the non-woven fabric sheet is placed over the puncture site of the catheter, and the back surface of the non-woven fabric sheet is adhered to the skin, the non-woven fabric sheet firmly fixes the tube of the catheter, etc. , the puncture site can be observed through the window, and the conventional function of sanitarily protecting the puncture site is exhibited.
  • urethane film that does not have an adhesive layer at all has the additional effect of providing better breathability and moisture permeability than when using an existing urethane film with a polyurethane adhesive layer.
  • the urethane film side has an adhesive layer and is integrated with the nonwoven fabric sheet
  • an adhesive layer is attached to the non-woven fabric sheet side and integrated with the urethane film, high adhesiveness to the smooth urethane film can be naturally obtained.
  • the release paper is formed to have an outer shape larger than that of the nonwoven fabric sheet, and the portion protruding from the outer shape of the nonwoven fabric sheet forms a gripping portion for facilitating the peeling operation. In this way, the release paper can be easily peeled off by pinching the pinching portion with the fingertips.
  • the carrier is formed with an outer shape larger than that of the urethane film, and a portion protruding from the outer shape of the urethane film is formed so as to form a holding portion for facilitating application to the skin.
  • the urethane film and the nonwoven fabric sheet can be applied to the skin without touching the back surface of the urethane film and the nonwoven fabric sheet by pinching the holding part and handling the urethane film and the nonwoven fabric sheet after peeling off the release paper. can be done.
  • FIG. 2 is an exploded view showing the medical dressing of FIG. 1 including an overlapping state
  • FIG. 3 is an exploded view showing the medical dressing of FIG. 2 arranged component by component
  • FIG. 4 is an explanatory view schematically showing a cross section of the dressing main body of FIG. 3
  • FIG. 2 is a plan view showing the attached state of the dressing main body of FIG. 1
  • FIG. 6 is a cross-sectional view schematically explaining a sticking state of the dressing main body of FIG. 5;
  • FIG. 1 shows a plan view of the medical dressing 1 of the present embodiment before use
  • FIG. 2 shows the medical dressing of FIG.
  • FIG. 3 shows an exploded view of the constituent elements of the dressing including the overlapping state
  • FIG. 3 shows an exploded view of the medical dressing of FIG.
  • the cross section of some of the constituent elements in FIG. 3 is shown in a schematic explanatory view.
  • the medical dressing 1 shown in FIGS. 1 to 4 has a window 2 opened in the central portion and adhesive layers 3 and 4 (the schematic illustration of FIG. 4) on both sides (front and back). ), and a non-woven fabric sheet 5 (skin fixing sheet) that covers the entire outer shape of the surface of the non-woven fabric sheet 5 and is unpeelably attached by the adhesive layer 3 on the surface side of the non-woven fabric sheet 5.
  • a transparent urethane film 6 (film sheet) and a release paper 7 (which covers at least the entire outer surface of the back surface of the nonwoven fabric sheet 5 and is detachably attached by the adhesive layer on the back surface side of the nonwoven fabric sheet 5).
  • the nonwoven fabric sheet 5 and the urethane film 6 constitute a dressing body 8 that is substantially adhered to the skin.
  • the materials are not limited to these.
  • the urethane sheet may be another sheet containing an elastomer.
  • the release paper 7 is formed to have an outer shape larger than that of the nonwoven fabric sheet 5, and portions projecting from the outer shape of the nonwoven fabric sheet 5 are formed to form gripping portions 7a, 7b, and 7c for facilitating the peeling operation. More specifically, a convex knob portion 7a is formed on the upper side in FIG. 3, and bifurcated knob portions 7b and 7c are formed on the lower side in FIG.
  • the urethane film 6 covers at least the entire outer shape of the surface of the urethane film 6, and is integrally adhered to the surface so as to be peelable and non-re-adherable, thereby imparting a shape-retaining ability.
  • a sheet-like carrier 9 is provided, and openings 10 corresponding to the windows 2 of the nonwoven fabric sheet 5 are formed in the carrier 9 .
  • the integral adhesion between the carrier 9 and the urethane film 6 is achieved by making the carrier 9 and the urethane film 6 adhere to each other in the manufacturing stage without an adhesive layer interposed therebetween. Once put away, neither the carrier 9 nor the urethane film 6 remains sticky.
  • an S-shaped cut line 11 is made to divide the carrier 9 at this position, and one side of the cut line 11 is cut.
  • the carrier 9 has an outer shape that roughly corresponds to the release paper 7 and is formed with an outer shape larger than that of the urethane film 6. Portions protruding from the outer shape form holding portions 9a, 9b, and 9c that facilitate the application to the skin.
  • Cutouts 9d and 9e and cutouts 9f and 9g are formed on the outer side to facilitate the peeling off of fixing tapes 12, 13 and 14, which will be described later.
  • the shape is different from that of the knobs 7a, 7b, 7c.
  • each holding portion 9a, 9b, 9c of the carrier 9 a plurality of fixing tapes 12, 13, 14 as shown in FIGS. 15 (see FIG. 5).
  • the fixing tapes 12, 13, 14 are fixed by the cutouts 9d, 9e and the cutouts 9f, 9g.
  • a part of the adhesive surface of the fixing tape 12, 13, 14 is exposed to create a starting point from which the fixing tape 12, 13, 14 starts peeling.
  • One side of the dressing body 8 in this embodiment is formed with a tube slot 16 that straddles a tube 15a of a catheter 15, which will be described later. Although attached, it is of course possible to form the tube slots 16 at multiple locations in the dressing body 8 . Further, the carrier 9 and the fixing tapes 12, 13 and 14 described in this embodiment are options and may be attached as required.
  • the release paper 7 is peeled off from the back surface of the nonwoven fabric sheet 5 at the time of use, and as shown in FIG.
  • the tube 15a of the catheter 15 is firmly fixed by the nonwoven fabric sheet 5, and the puncture site can be observed through the window 2, and the puncture site is hygienically protected.
  • the function as before is exhibited.
  • a urethane film 6 having no adhesive layer was used instead of a conventional urethane film having an adhesive layer on the entire back surface, and a nonwoven fabric sheet 5 having windows 2 was used. Since the urethane film 6 and the nonwoven fabric sheet 5 are integrated using the adhesive layer 3 attached to the surface of the nonwoven fabric sheet 5, the urethane film 6 covering the window 2 of the nonwoven fabric sheet 5 is It is kept as a region (non-adhesive portion) that has no adhesiveness at all, and as a result, there is no concern that the catheter 15 placed in the puncture portion will stick to the needle hub 15b or the like, and as a result, the needle hub 15b can be unintentionally pulled out at the time of replacement. Such incidents are prevented.
  • the non-adhesive portion preferably has a vertical width (see L1 in FIG. 3) and a horizontal width (see L2 in FIG. 3) of 40 mm or more.
  • the adhesive portion did not come into contact with the hub body and wings of the catheter in the product described in Japanese Patent No. 4853516 (registered trademark: Safe Touch Coreless Needle). That is, the product has a width of 30 mm including the hub body and wings, a hub body with a height of 10 mm, and a non-adhesive part with a vertical width and a horizontal width of 40 mm or more. Therefore, it is possible to prevent the adhesive portion from contacting the needle hub, thereby preventing the adhesive portion from sticking to the needle hub and moving the needle hub together when the dressing body 8 is replaced. .
  • the non-adhesive portion preferably has a width dimension that completely covers the needle hub, but even if the vertical and horizontal widths are less than 40 mm, the non-adhesive portion can minimize the bonding area with the needle hub. It is possible to reduce the occurrence of a situation in which the needle hub moves together when the dressing body is replaced. Therefore, the vertical width and horizontal width of the window portion 2 and the non-adhesive portion composed of the nonwoven fabric sheet 5 and the urethane film 6 described in the embodiment may be less than 40 mm.
  • the dressing body 8 having a non-adhesive portion can solve the problem when replacing the dressing body 8, but it also has the problem that the bonding area is smaller than before, and the bonding strength is weak.
  • the bonding area can be increased by widening the width of the dressing main body 8 and enlarging the size, but if the size is increased, handling performance is deteriorated.
  • the applicant found that the dressing body 8 provided with a non-adhesive part, unlike the conventional one, can be needled through the non-adhesive part.
  • various configurations have been found that can solve the problem.
  • One is a configuration in which the flexibility of the non-adhesive portion is higher than that of the adhesive portion. In this way, when needle hub 15b comes into contact with the non-adhesive portion, the portion to which stress is applied from needle hub 15b is deformed. It is easy to adjust 15b to an appropriate position. For this reason, it is easy to adjust the position so that the entire adhesive portion is positioned on the skin at the time of application, and a stable adhesion area to the skin can be secured. Further, since the non-adhesive portion has higher flexibility than the adhesive portion, the stress generated from the needle hub 15b is less likely to act on the adhesive portion.
  • the stress generated by the needle hub 15b may deform the adhesive portion and cause wrinkles to form on the adhesive surface. reduced. Therefore, even if the area of the adhesive part is small, it can be attached to the skin stably and efficiently.
  • One is a configuration in which the elasticity of the non-adhesive portion is higher than that of the adhesive portion.
  • the user sees it as a flat surface and forgets that the width of the non-adhesive portion is necessary for the height of the needle hub 15b.
  • it may be recognized as parallel, and fixing work may be performed.
  • the non-adhesive portion cannot completely cover the hub main body and the wings, and the needle hub 15b comes into contact with the adhesive portion. In this case, not only troubles occur at the time of replacement, but also the adhesion area to the skin becomes small, which may cause the dressing main body 8 to peel off from the skin during use.
  • the non-adhesive portion is stretchable, even if the user misjudges the fixed position, the non-adhesive portion in contact with needle hub 15b will stretch and the adhesive portion will not come into contact with needle hub 15b. It is difficult and can stabilize the adhesion area with the skin. Furthermore, if the stretchability of the non-adhesive portion is higher than that of the adhesive portion, the non-adhesive portion in contact with the needle hub 15b will be stretched preferentially. harder than mine
  • the non-adhesive part may be a non-stretchable sheet such as food wrap. It is preferable to have
  • the adhesive portion in order to realize the non-adhesive portion, has a multi-sheet structure, while the non-adhesive portion has a single sheet structure.
  • the adhesive part has a single sheet structure and the non-adhesive part has a multi-layer structure, that is, when a sheet having no adhesive part is fixed in the center of the sheet whose entirety is the adhesive part to form the non-adhesive part, the adhesive A step is formed on the skin at the boundary between the adhesive part and the non-adhesive part. Therefore, in order to efficiently increase the adhesion area with the skin, it is preferable that the adhesive part has a multi-sheet structure and the non-adhesive part has a single sheet structure.
  • the adhesive part and the non-adhesive part may not be stable and the adhesiveness may be weakened. If you try to increase the property compared to the adhesive portion, it will be necessary to adjust the thickness.
  • the surface of the nonwoven fabric sheet 5 contacts the urethane film 6, and the back surface of the nonwoven fabric sheet 5 forms a contact surface that contacts the skin.
  • the nonwoven fabric sheet 5 having the window 2 is provided so as to cover the outside of the urethane film 6, but in this case, the nonwoven fabric sheet 5 inevitably protrudes from the outer shape of the urethane film 6.
  • the flexibility of the adhesive portion is also relatively high. As a result, wrinkles are more likely to occur, and the size of the dressing main body 8 increases if an attempt is made to deal with such wrinkles by increasing the adhesion area with the skin.
  • the surface of the nonwoven fabric sheet 5 is in contact with the urethane film 6 and the back surface of the nonwoven fabric sheet 5 forms a contact surface that contacts the skin. preferable.
  • the urethane film 6 with no adhesive layer is used, it is possible to obtain better breathability and moisture permeability than the existing urethane film with a polyurethane adhesive layer. There is also an effect.
  • the urethane film 6 has an adhesive layer and is integrated with the non-woven fabric sheet 5
  • the adhesive layer 3 is attached to the non-woven fabric sheet 5 side to be integrated with the urethane film 6, high adhesiveness to the smooth urethane film 6 can be naturally obtained.
  • the non-woven fabric does not have stretchability, the stretchability of the adhesive portion can be greatly reduced, and a configuration in which the stretchability of the non-adhesive portion is higher than that of the adhesive portion can be easily realized.
  • the outer periphery of the non-adhesive part is surrounded by the adhesive part, and the shape of the non-adhesive part can be set to various shapes such as a circle, but it can also be a square with rounded corners.
  • the shape of the non-adhesive part can be set to various shapes such as a circle, but it can also be a square with rounded corners.
  • the square shape with rounded corners can increase the area of the bonding portion.
  • the non-adhesive portion is surrounded by the adhesive portion over the entire outer periphery, it is also possible that part of the outer periphery of the non-adhesive portion is surrounded by the adhesive portion.
  • the non-adhesive portion preferably has a width of 40 mm or more in length and width. is preferred.
  • the adhesive portion is formed at least 20 mm from the center P of the dressing body 8 .
  • the non-adhesive portion has a width dimension of 40 mm or more on the vertical axis (the vertical axis in FIG. 3) and the horizontal axis (the horizontal axis in FIG. 3), and is located at the center P of the dressing body 8,
  • the width of the non-adhesive portion is longer than the width of the adhesive portion on the vertical axis and the horizontal axis that are perpendicular to each other so as to pass through the center P. That is, on the horizontal axis passing through the center P, the adhesive portion is positioned so as to sandwich the non-adhesive portion, and is divided into the adhesive portion on one side and the adhesive portion on the other side opposite to the one side.
  • the width of the non-adhesive portion (L 2 in FIG. 3) is longer than the total width of the adhesive portion on one side and the adhesive portion on the other side (L 3 +L 4 in FIG. 3). Furthermore, the width of the non-adhesive portion is longer than the sum of the widths of the adhesive portions on the horizontal axis that is 20 mm above the vertical axis from the center P, and the horizontal axis is 20 mm below the vertical axis from the center P. Also, the width dimension of the non-adhesive portion is longer than the total width dimension of the adhesive portion. Such a relationship is the same over 20 mm above and 20 mm below the vertical axis from the center.
  • the width of the non-adhesive portion is longer than the total width of the adhesive portion on the vertical axis that is 20 mm on the left side of the horizontal axis from the center P, and the adhesive portion is also on the vertical axis that is 20 mm on the right side of the horizontal axis from the center.
  • the width of the non-adhesive part is longer than the total width of the Such a relationship is the same from 20 mm on the left side to 20 mm on the right side of the horizontal axis from the center P.
  • only one of the vertical axis and the horizontal axis may be configured such that the width dimension of the non-adhesive portion is longer than the total width dimension of the adhesive portion.
  • the width from the outer end of the non-adhesive portion to the outer end of the adhesive portion is 10 mm or more.
  • the dressing main body 8 can be fixed on the skin for a long period of time. That is, since the area of the non-adhesive portion is wide, flexibility and stretchability are improved, so wrinkles are less likely to occur in the adhesive portion, and a certain amount of adhesive area is secured in the adhesive portion, so that the dressing body 8 can be placed on the skin. It has been confirmed that even when fixed to a wall, there is little chance of peeling off, and that it can be used for a long period of time. Furthermore, it was confirmed that since the area of the non-adhesive portion is large, it is possible to reduce the situation in which the adhesive portion comes into contact with the needle hub 15b without special care being taken during attachment.
  • the width dimension from the outer end of the non-adhesive portion to the outer end of the adhesive portion is 15 mm or more. Specific dimensions in the embodiment shown in FIG. The width to the end is formed to be 28 mm.
  • the vertical and horizontal widths of the non-adhesive portion are preferably 40 mm or more, and more preferably 50 mm or more and 90 mm or less.
  • the needle hub 15b is less likely to come into contact with the adhesive portion even when a needle is inserted, and the dressing main body 8 can be easily handled.
  • the vertical and horizontal widths of the non-adhesive portion are 60 mm.
  • the release paper 7 is formed to have an outer shape larger than that of the nonwoven fabric sheet 5, and the portions projecting from the outer shape of the nonwoven fabric sheet 5 are formed to form gripping portions 7a, 7b, and 7c for facilitating the peeling work. Therefore, the release paper 7 can be easily peeled off by pinching the gripping portions 7a, 7b, and 7c with the fingertips.
  • the carrier 9 which covers the entire outer shape of at least the surface of the urethane film 6 and is integrally adhered to the surface so that it can be peeled off and cannot be re-adhered, thereby imparting a shape-retaining ability.
  • the carrier 9 can impart shape-retaining ability to the urethane film 6 and the nonwoven fabric sheet 5, which lose their stiffness after the release paper 7 is peeled off, so that the urethane film 6 and the nonwoven fabric sheet 5 can be easily handled during application to the skin. Become.
  • the carrier 9 is formed to have an outer shape larger than that of the urethane film 6, and the portion protruding from the outer shape of the urethane film 6 is arranged so that the holding portions 9a, 9b, 9c sandwich the dressing main body 8 so as to facilitate the operation of applying the dressing to the skin. Since the urethane film 6 and the nonwoven fabric sheet 5 are formed in pairs, the urethane film 6 and the nonwoven fabric sheet 5 can be handled by pinching the holding portion 9a and the holding portions 9b and 9c with the fingers of each hand after peeling off the release paper 7. It is possible to perform the sticking operation to the skin without touching the back surface of the sheet 5. ⁇ For this reason, the dressing body 8 can be applied without touching the adhesive part with a finger. It is possible to prevent a situation such as a decline.
  • the carrier 9 since the carrier 9 has the openings 10 corresponding to the windows 2 of the nonwoven fabric sheet 5, the visibility through the windows 2 of the nonwoven fabric sheet 5 is ensured by the openings 10 of the carrier 9. The visibility of the nonwoven fabric sheet 5 through the window 2 is not hindered by the carrier 9 . Further, when the non-adhesive portion contacts the needle hub 15b and deforms, the carrier 9 does not hinder the deformation.
  • the portion of the urethane film 6 covering the window portion 2 of the non-woven fabric sheet 5 can be maintained as a completely non-adhesive region. It is possible to prevent incidents such as unintentional removal of the catheter needle at the time of replacement by avoiding it in advance, and by adopting the urethane film 6 that does not have an adhesive layer at all, the existing polyurethane adhesive layer can be reduced. Better breathability and moisture permeability can be obtained than when the urethane film 6 is held.
  • the release paper 7 can be easily peeled off by pinching the gripping portions 7a, 7b, and 7c with the fingertips, the release paper 7 can be easily peeled off, and the medical dressing material 1 can be applied. It is possible to reduce the work load required for attachment and replacement. Moreover, by setting the peeling resistance of the carrier 9 to the dressing main body 8 larger than the peeling resistance of the release paper 7 to the dressing main body 8, when the user removes the release paper, the carrier 9 is removed from the dressing main body 8. It is possible to reduce the situation where the peeling occurs.
  • the carrier 9 can impart shape retention ability to the urethane film 6 and the nonwoven fabric sheet 5, which lose their stiffness after the release paper 7 is peeled off, which facilitates the handling of the urethane film 6 and the nonwoven fabric sheet 5 during application to the skin. Therefore, it is possible to further reduce the work load required for attaching and replacing the medical dressing 1 .
  • the dressing main body 8 is fixed on the skin for a long period of time.
  • the dressing body 8 having a non-adhesive portion has a smaller adhesive area than the conventional one. Floating. Therefore, in daily life, the adhesive portion gradually peels off from the skin in the vicinity of the tube 15a, and the adhesiveness is impaired, so that the dressing main body 8 may be unintentionally peeled off from the skin. It is conceivable to increase the area of the adhesive part on the side where the tube 15a exists, but in that case, the size of the dressing body 8 increases, making it difficult to handle, and the dressing on the needle hub 15b.
  • the direction of the main body 8 is fixed, and the method of sticking to the skin becomes inapplicable, which gives unnecessary stress to the user.
  • the fixing tapes 12, 13, and 14 that can be separated from the dressing body 8
  • the fixing tapes 12, 13, and 14 are attached to the side where the tube 15a exists after the dressing body 8 is attached. Furthermore, it is possible to stick and reinforce the adhesive force. In this way, even if the dressing body 8 has a non-adhesive portion, it is possible to prevent the dressing body 8 from peeling off from the skin for a long period of time.
  • the holding portions 9a, 9b, 9c are pinched to handle the urethane film 6 and the nonwoven fabric sheet 5, so that the back surfaces of the urethane film 6 and the nonwoven fabric sheet 5 are not touched and the skin is not touched.
  • the sticking operation can be performed, and the puncture site and the surface coming into contact with the skin can be kept clean.
  • the opening 10 of the carrier 9 can ensure visibility through the window 2 of the nonwoven fabric sheet 5, and the carrier 9 prevents the visibility of the nonwoven fabric sheet 5 through the window 2 from being obstructed. can be avoided.
  • the medical dressing of the present invention is not limited to the above-described examples of forms, and that the release paper and carrier may adopt shapes other than those shown in the examples.
  • the release paper and the carrier may be divided into a plurality of parts, and furthermore, in the illustrated example, the case where the entire window portion of the non-woven fabric sheet (skin fixing sheet) is a non-adhesive portion is explained.
  • skin fixing sheet skin fixing sheet
  • the medical dressing of the present invention is particularly preferable for fixing needle hubs on the skin, but the fixed object is not limited to needle hubs, and other medical devices that are left in place for a long period of time may be fixed.
  • the present invention is preferably used for fixing a tall medical device on the skin, and particularly for fixing an indwelling device in which the puncture portion is perpendicular to the tube.

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  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

Provided is a medical dressing material characterized by comprising a dressing body 8 that has a reverse surface on the skin side and an obverse surface on the opposite side from the reverse surface, and a peelable sheet (peelable paper 7) that is peelably attached to the reverse surface, the reverse surface having an adhesive section and a non-adhesive section, the non-adhesive section having a longitudinal width and a lateral width of 40 mm or greater, and the adhesive section being formed so as to surround the non-adhesive section.

Description

医療用ドレッシング材medical dressing
　本発明は、点滴等を行う際に、カテーテルを固定すると共に、その穿刺部を被覆保護する医療用ドレッシング材に関するものである。 The present invention relates to a medical dressing that secures a catheter and covers and protects the puncture site when instillation or the like is performed.
　従来、点滴等でカテーテルが挿入された穿刺部は、皮膚に刺した状態でしっかりと固定しておく必要があるため、前記穿刺部の上から医療用ドレッシング材を貼付し、刺さった状態のまま留置されているカテーテルの針ハブやチューブの固定を図ると共に、その穿刺部を衛生的に保護して感染防止を図り得るようになっている。 Conventionally, a puncture site into which a catheter is inserted for an infusion or the like needs to be firmly fixed in a state of being punctured into the skin. The needle hub and tube of the indwelling catheter can be fixed, and the puncture site can be hygienically protected to prevent infection.
　このような医療用ドレッシング材として、特許文献１が開示されている。特許文献１は、中央部分に窓部（視認部）を有し且つ裏面に粘着剤層を持つ不織布シートの表面に、粘着剤層を裏面に備えた透明なウレタンフィルムを貼着した構成となっており、カテーテルの穿刺部に被せて前記不織布シートの裏面を皮膚に対し貼り付けるようにすることが開示されている。 Patent Document 1 discloses such a medical dressing material. Patent Document 1 has a configuration in which a transparent urethane film having an adhesive layer on the back surface is attached to the surface of a nonwoven fabric sheet having a window portion (viewing portion) in the central portion and an adhesive layer on the back surface. It is disclosed that the back surface of the non-woven fabric sheet is attached to the skin by covering the puncture site of the catheter.
特開２０１４－６８７２１号公報JP 2014-68721 A
　しかしながら、特許文献１に代表される既存の医療用ドレッシング材にあっては、ウレタンフィルムの裏面全域に粘着剤層が付されていたため、この粘着剤層が不織布シートとの一体化に重要な役割を担っている一方で、穿刺部に留置されているカテーテルの針ハブにも前記ウレタンフィルムの粘着剤層が貼り付いてしまい、交換時に意図しない針ハブの抜去等のインシデントが発生するリスクがあるという課題があった。 However, in the existing medical dressing material represented by Patent Document 1, since the adhesive layer is attached to the entire back surface of the urethane film, this adhesive layer plays an important role in integrating with the nonwoven fabric sheet. On the other hand, the adhesive layer of the urethane film sticks to the needle hub of the catheter placed in the puncture site, and there is a risk of incidents such as unintended removal of the needle hub during replacement. There was a problem.
　本発明は上述の実情に鑑みてなしたもので、交換時にカテーテルの針ハブの抜去等のインシデントを防止し得る医療用ドレッシング材を提供することを目的とする。 The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to provide a medical dressing that can prevent incidents such as withdrawal of the needle hub of the catheter during replacement.
　本発明は、皮膚側の裏面と該裏面に対し逆側の表面とを有するドレッシング本体と、前記裏面に剥離可能に貼り付けられる剥離シートとを備え、前記裏面は粘着部と非粘着部を有し、非粘着部は縦幅及び横幅が４０ｍｍ以上の幅を有し、粘着部は非粘着部を囲むように形成されていることを特徴とする医療用ドレッシング材、に係るものである。 The present invention comprises a dressing body having a back surface on the skin side and a surface opposite to the back surface, and a release sheet that is detachably attached to the back surface, and the back surface has an adhesive portion and a non-adhesive portion. and wherein the non-adhesive portion has a width of 40 mm or more, and the adhesive portion is formed so as to surround the non-adhesive portion.
　このようにした場合、ドレッシング本体を用いて針ハブを皮膚上に固定しても、針ハブの構成部材であるハブ本体や翼部が粘着部に当接する事態を低減することができる。このため、ドレッシング本体交換時に針ハブ等が共に動いてしまい、意図しない針ハブの抜去等が生じるといったリスクを低減することができる。 In this case, even if the needle hub is fixed on the skin using the dressing main body, it is possible to reduce situations in which the hub main body and the wing portions, which are constituent members of the needle hub, contact the adhesive portion. Therefore, it is possible to reduce the risk of unintentional removal of the needle hub or the like due to the needle hub or the like moving together when the dressing main body is replaced.
　また、本発明においては、非粘着部は粘着部に比して柔軟性が高くしてもよい。このようにした場合、ドレッシング本体で針ハブを覆うように皮膚上に貼り付ける際に、非粘着部が優先的に変形するため、針ハブと非粘着部を接した状態で移動させても、針ハブからの応力が粘着部に対して作用しにくく、粘着部が変形してしわがよった状態で固定されてしまう事態を防止する。 Also, in the present invention, the non-adhesive portion may have higher flexibility than the adhesive portion. In this case, when the dressing body is attached to the skin so as to cover the needle hub, the non-adhesive portion is preferentially deformed. To prevent a situation in which stress from a needle hub hardly acts on an adhesive part and the adhesive part is fixed in a wrinkled state due to deformation.
　また、本発明においては、フィルムシートは伸縮性を有するフィルムで構成され、非粘着部は粘着部に比して伸縮性が高く形成されていてもよい。このようにした場合、ドレッシング本体に対する針ハブの位置が多少見誤っていても、針ハブと接した非粘着部が伸びて、針ハブを非粘着部によって覆うことができる。 Further, in the present invention, the film sheet may be made of a stretchable film, and the non-adhesive portion may be formed to have higher stretchability than the adhesive portion. In this case, even if the position of the needle hub with respect to the dressing main body is slightly erroneous, the non-adhesive portion in contact with the needle hub extends to cover the needle hub with the non-adhesive portion.
　また、本発明においては、ドレッシング本体はフィルムシートと、中央が切り取られた皮膚固定用シートからなり、皮膚固定用シートはフィルムシートと対向面間で接合されてもよい。このように粘着部を多重シート構造として非粘着部を単一シート構造とすることで、粘着部及び非粘着部を単一シートとしたり、粘着部を単一シート構造として非粘着部を多重シート構造としたりするより安定した粘着部の接着性を実現できる。 In addition, in the present invention, the dressing body may be composed of a film sheet and a skin-fixing sheet with a cut-off center, and the skin-fixing sheet may be bonded to the film sheet between the opposing surfaces. In this way, by making the adhesive part a multi-sheet structure and the non-adhesive part a single sheet structure, the adhesive part and the non-adhesive part can be made a single sheet, or the adhesive part can be a single sheet structure and the non-adhesive part a multi-sheet structure. It is possible to achieve more stable adhesion of the adhesive part by using a structure.
　また、本発明においては、皮膚固定用シートの表面はフィルムシートが当接し、皮膚固定用シートの裏面は皮膚に当接する当接面を形成する。このようにした場合、皮膚固定用シートがフィルムシートの外側を覆うように設けられる場合に比して、効率的に接着面積を稼ぐことができ、非粘着部を有するドレッシング本体に適した粘着部を実現できる。 In addition, in the present invention, the surface of the skin-fixing sheet is in contact with the film sheet, and the back surface of the skin-fixing sheet forms a contact surface that contacts the skin. In this case, compared to the case where the skin fixing sheet is provided so as to cover the outside of the film sheet, the adhesive area can be efficiently increased, and the adhesive portion is suitable for the dressing body having the non-adhesive portion. can be realized.
　また、本発明においては、フィルムシートと皮膚固定用シートは皮膚固定用シートに設けた粘着剤層によって固定されており、皮膚固定用シートは両面に粘着剤層を備えた不織布シートであり、フィルムシートはウレタンフィルムであってもよい。このようにした場合、全く粘着剤層を持たないウレタンフィルムを採用しているので、既存のポリウレタン粘着剤層を持たせたウレタンフィルムを採用した場合よりも一層良好な通気性・透湿性が得られるという付帯効果もある。 In the present invention, the film sheet and the skin-fixing sheet are fixed by an adhesive layer provided on the skin-fixing sheet, and the skin-fixing sheet is a nonwoven fabric sheet having adhesive layers on both sides, and the film The sheet may be a urethane film. In this case, since a urethane film with no adhesive layer is used, better breathability and moisture permeability can be obtained than when using an existing urethane film with a polyurethane adhesive layer. There is also the incidental effect of being able to
　更に、従来の如きウレタンフィルム側に粘着剤層を持たせて不織布シートとの一体化を図る形式では、表面状態を平滑状態にした不織布シートを使用して接着性を高める必要があったが、不織布シート側に粘着剤層を付してウレタンフィルムとの一体化を図る形式とすれば、平滑なウレタンフィルムに対し自ずから高い接着性が得られることになる。 Furthermore, in the conventional format in which an adhesive layer is provided on the urethane film side and integrated with the nonwoven fabric sheet, it was necessary to use a nonwoven fabric sheet with a smooth surface to improve adhesiveness. If the adhesive layer is attached to the non-woven fabric sheet side and integrated with the urethane film, high adhesiveness to the smooth urethane film can be naturally obtained.
　また、本発明においては、ドレッシング本体から分離可能な固定テープを更に備えてもよい。このようにした場合、粘着部における皮膚との接着力が弱い箇所における固定力を補うことができる。即ち、非粘着部を有するドレッシング本体は非粘着部を設ける面積分だけ従来のドレッシング本体に比して接着力が弱く、時間が経つにつれ皮膚とドレッシング本体の粘着が低下しやすい。特に、針ハブから外方に延びるチューブが存在する側においてはチューブがある分粘着部の一部が皮膚から浮いてしまうため、チューブ近傍において時間と共に皮膚から粘着部が剥離していく事態が考えられる。チューブが存在する側の辺の接着部の面積を大きくすることが考えられるが、その場合、針ハブに対するシート部材の向きが決まってしまったり、大型化してしまうという問題が生じる。これに対し、固定テープが備わっていることによって、ドレッシング本体を貼り付けた後にチューブが存在する側の辺に固定テープを更に貼り付け、接着力の補強を行うことができ、長期間に亘って固定されてもドレッシング本体が皮膚から剥がれにくくすることができる。 In addition, the present invention may further include a fixing tape separable from the dressing body. In this case, it is possible to compensate for the fixing force in the portion where the adhesive force to the skin is weak in the adhesive portion. That is, a dressing body having a non-adhesive portion has a weaker adhesive force than a conventional dressing body due to the area of the non-adhesive portion, and the adhesion between the skin and the dressing body tends to decrease over time. In particular, on the side where the tube extending outward from the needle hub exists, a part of the adhesive part floats from the skin due to the presence of the tube. be done. It is conceivable to increase the area of the adhesive portion on the side on which the tube exists, but in that case, problems arise in that the orientation of the sheet member with respect to the needle hub is fixed and the size increases. On the other hand, since the fixing tape is provided, after the dressing body is attached, the fixing tape can be further attached to the side where the tube is present to reinforce the adhesive strength, and the dressing can be used for a long time. Even if it is fixed, the dressing body can be made difficult to peel off from the skin.
　また、本発明においては、ドレッシング本体の表面に離脱可能に貼り付けられた保持シートを更に備え、保持シートはドレッシング本体の外形から張り出した保持部を有してもよい。このようにした場合、粘着部に指が触れることなく、ドレッシング本体の貼り付け操作を行うことができ、皮膚にドレッシング本体を貼り付ける際に、指が粘着部に触れてしまい、皮脂により接着効果が低下するといった事態を防止することができる。 In addition, the present invention may further include a holding sheet detachably attached to the surface of the dressing main body, and the holding sheet may have a holding portion protruding from the external shape of the dressing main body. In this case, the operation of attaching the dressing body can be performed without touching the adhesive part with the finger, and when the dressing body is attached to the skin, the finger touches the adhesive part, resulting in the adhesive effect due to sebum. It is possible to prevent a situation in which the
　また、本発明においては、保持シートのドレッシング本体に対する剥離抵抗力が剥離シートのドレッシング本体に対する剥離抵抗力に比して大きく設定されてもよい。このようにした場合、使用者が剥離シートをドレッシング本体から剥離させる際に、ドレッシング本体から保持シートが剥離してしまう事態を低減できる。 Also, in the present invention, the peeling resistance of the holding sheet to the dressing body may be set to be greater than the peeling resistance of the release sheet to the dressing body. In this case, when the user peels off the release sheet from the dressing main body, it is possible to reduce the situation in which the holding sheet is peeled off from the dressing main body.
　また、本発明においては、ドレッシング本体の中心を通るように直交する縦軸及び横軸の少なくとも何れか一方において、粘着部の幅寸法に比して非粘着部の幅寸法が長く、非粘着部の外方端部から粘着部の外方端部までの幅寸法が１０ｍｍ以上であってもよい。非粘着部の幅寸法が粘着部の幅寸法より長ければ、針ハブが粘着部に接触する事態を低減することができる。また、非粘着部が柔軟なフィルムシートである場合、非粘着部の外方端部から粘着部の外方端部までの幅が１０ｍｍ以上とされることで、非粘着部の幅寸法の広さと相まって、粘着部にしわがよりにくく、安定した接着性が実現され、ドレッシング本体が皮膚から剥離する事態が低減される。 Further, in the present invention, the width dimension of the non-adhesive portion is longer than the width dimension of the adhesive portion on at least one of the vertical axis and the horizontal axis that are perpendicular to each other so as to pass through the center of the dressing body. The width dimension from the outer end of the adhesive portion to the outer end of the adhesive portion may be 10 mm or more. If the width dimension of the non-adhesive portion is longer than the width dimension of the adhesive portion, it is possible to reduce the situation in which the needle hub comes into contact with the adhesive portion. Further, when the non-adhesive part is a flexible film sheet, the width from the outer end of the non-adhesive part to the outer end of the adhesive part is 10 mm or more, so that the width dimension of the non-adhesive part is widened. In combination with this, the adhesive part is less likely to wrinkle, stable adhesion is realized, and the situation that the dressing main body peels off from the skin is reduced.
　更に、本発明は、任意の位置に窓部を開口し且つ両面に粘着剤層を備えた不織布シートと、非粘着部を有し且つ前記不織布シートの表面に対して剥離不能に貼着された透明なウレタンフィルムと、前記不織布シートの裏面に対して剥離可能に貼着された剥離シートとを備えたことを特徴とする医療用ドレッシング材、に係るものでもある。 Furthermore, the present invention provides a non-woven fabric sheet having a window portion opened at an arbitrary position and having adhesive layers on both sides, and a non-adhesive portion having a non-adhesive portion and non-peelable adhered to the surface of the non-woven fabric sheet. The present invention also relates to a medical dressing comprising a transparent urethane film and a release sheet detachably adhered to the back surface of the nonwoven fabric sheet.
　このようにした場合、使用時に不織布シートの裏面から剥離紙を剥がし、カテーテルの穿刺部に被せて前記不織布シートの裏面を皮膚に対し貼り付けると、不織布シートによりカテーテルのチューブ等が強固に固定され、その窓部から穿刺部を観察することが可能となり、該穿刺部が衛生的に保護されるという従前通りの機能が発揮される。 In this case, when the release paper is peeled off from the back surface of the non-woven fabric sheet at the time of use, the non-woven fabric sheet is placed over the puncture site of the catheter, and the back surface of the non-woven fabric sheet is adhered to the skin, the non-woven fabric sheet firmly fixes the tube of the catheter, etc. , the puncture site can be observed through the window, and the conventional function of sanitarily protecting the puncture site is exhibited.
　この際、従来における裏面全域を粘着剤層としていたウレタンフィルムに代えて、全く粘着剤層を持たないウレタンフィルムを採用し、窓部を持つ不織布シートの表面に付した粘着剤層を利用して前記ウレタンフィルムと前記不織布シートとの一体化を図るようにしているので、前記不織布シートの窓部を覆うウレタンフィルムの部分は全く粘着性を持たない領域として保たれ、穿刺部に留置されているカテーテルの針ハブ等への貼り付きの心配がなくなる結果、交換時における意図しない針ハブの抜去等のインシデントが防止される。 In this case, instead of the conventional urethane film that had an adhesive layer on the entire back surface, we adopted a urethane film that does not have an adhesive layer at all, and used the adhesive layer attached to the surface of the non-woven fabric sheet with windows. Since the urethane film and the non-woven fabric sheet are integrated, the portion of the urethane film that covers the window of the non-woven fabric sheet is kept as a completely non-adhesive region and is retained at the puncture site. As a result of eliminating concerns about the catheter sticking to the needle hub or the like, incidents such as unintended removal of the needle hub during replacement can be prevented.
　しかも、全く粘着剤層を持たないウレタンフィルムを採用しているので、既存のポリウレタン粘着剤層を持たせたウレタンフィルムを採用した場合よりも一層良好な通気性・透湿性が得られるという付帯効果もある。 In addition, the use of a urethane film that does not have an adhesive layer at all has the additional effect of providing better breathability and moisture permeability than when using an existing urethane film with a polyurethane adhesive layer. There is also
　更に付言しておくと、従来の如きウレタンフィルム側に粘着剤層を持たせて不織布シートとの一体化を図る形式では、表面状態を平滑状態にした不織布シートを使用して接着性を高める必要があったが、不織布シート側に粘着剤層を付してウレタンフィルムとの一体化を図る形式とすれば、平滑なウレタンフィルムに対し自ずから高い接着性が得られることになる。 In addition, in the conventional format in which the urethane film side has an adhesive layer and is integrated with the nonwoven fabric sheet, it is necessary to use a nonwoven fabric sheet with a smooth surface to improve adhesion. However, if an adhesive layer is attached to the non-woven fabric sheet side and integrated with the urethane film, high adhesiveness to the smooth urethane film can be naturally obtained.
　また、本発明をより具体的に実施するにあたっては、前記剥離紙が不織布シートよりも大きな外形で形成され且つ該不織布シートの外形から張り出した部分が剥離作業を容易ならしめる摘まみ部を成すように形成されていることが好ましく、このようにすれば、前記摘まみ部を指先で摘まんで剥離紙を簡単に剥がすことが可能となる。 Further, in carrying out the present invention in a more concrete manner, the release paper is formed to have an outer shape larger than that of the nonwoven fabric sheet, and the portion protruding from the outer shape of the nonwoven fabric sheet forms a gripping portion for facilitating the peeling operation. In this way, the release paper can be easily peeled off by pinching the pinching portion with the fingertips.
　また、本発明においては、前記キャリアがウレタンフィルムよりも大きな外形で形成され且つ該ウレタンフィルムの外形から張り出した部分が皮膚への貼付作業を容易ならしめる保持部を成すように形成されていることが好ましく、このようにすれば、剥離紙を剥がした後で前記保持部を摘まんでウレタンフィルム及び不織布シートを取り扱うことで、これらウレタンフィルム及び不織布シートの裏面に触れずに皮膚への貼付作業を行うことが可能となる。 Further, in the present invention, the carrier is formed with an outer shape larger than that of the urethane film, and a portion protruding from the outer shape of the urethane film is formed so as to form a holding portion for facilitating application to the skin. In this way, the urethane film and the nonwoven fabric sheet can be applied to the skin without touching the back surface of the urethane film and the nonwoven fabric sheet by pinching the holding part and handling the urethane film and the nonwoven fabric sheet after peeling off the release paper. can be done.
　上記した本発明の医療用ドレッシング材によれば、交換時にカテーテルの針ハブの抜去等のインシデントを防止し得る医療用ドレッシング材を実現することができる。 According to the medical dressing material of the present invention described above, it is possible to realize a medical dressing material that can prevent incidents such as withdrawal of the needle hub of the catheter during replacement.
本発明を実施する形態の一例を示す平面図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a top view which shows an example of the form which implements this invention. 図１の医療用ドレッシング材を重なり状態を含めて示す分解図である。FIG. 2 is an exploded view showing the medical dressing of FIG. 1 including an overlapping state; 図２の医療用ドレッシング材を構成要素ごとに並べて示す分解図である。FIG. 3 is an exploded view showing the medical dressing of FIG. 2 arranged component by component; 図３のドレッシング本体の断面を模式的に示す説明図である。FIG. 4 is an explanatory view schematically showing a cross section of the dressing main body of FIG. 3; 図１のドレッシング本体の貼付状態を示す平面図である。FIG. 2 is a plan view showing the attached state of the dressing main body of FIG. 1; 図５のドレッシング本体の貼付状態を模式的に説明する断面図である。FIG. 6 is a cross-sectional view schematically explaining a sticking state of the dressing main body of FIG. 5;
　以下、本発明の実施の形態を図面を参照しつつ説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
　図１～図４は本発明を実施する形態の一例を示すもので、図１は本実施例の医療用ドレッシング材１の使用前の状態を平面図で示し、図２は図１の医療用ドレッシング材の構成要素を重なり状態を含めて分解図で示し、図３は図２の医療用ドレッシング材を構成要素ごとに下層から上層へ重なり順に並べて分解図で示し、図４は説明の便宜上から図３の一部の構成要素の断面を模式的な説明図で示したものとなっている。 1 to 4 show an example of the embodiment of the present invention. FIG. 1 shows a plan view of the medical dressing 1 of the present embodiment before use, and FIG. 2 shows the medical dressing of FIG. FIG. 3 shows an exploded view of the constituent elements of the dressing including the overlapping state, FIG. 3 shows an exploded view of the medical dressing of FIG. The cross section of some of the constituent elements in FIG. 3 is shown in a schematic explanatory view.
　これら図１～図４に図示している医療用ドレッシング材１では、中央部分に窓部２を開口し且つ両面（表面と裏面）に粘着剤層３，４（図４の模式的な説明図を参照）を備えた不織布シート５（皮膚固定用シート）と、該不織布シート５の表面の外形全域を被覆し且つ前記不織布シート５の表面側の粘着剤層３により剥離不能に貼着された透明性を有するウレタンフィルム６（フィルムシート）と、前記不織布シート５の少なくとも裏面の外形全域を被覆し且つ前記不織布シート５の裏面側の粘着剤層により剥離可能に貼着された剥離紙７（剥離シート）とを備えており、前記不織布シート５と前記ウレタンフィルム６とで実質的に皮膚への貼着が成されるドレッシング本体８が構成されるようになっている。尚、皮膚固定用シート、フィルムシート、剥離シートについては最も好適な材質を記載しているが、材質はこれに限るものではない。例えば、ウレタンシートはエラストマーを含む別のシートであってもよい。 The medical dressing 1 shown in FIGS. 1 to 4 has a window 2 opened in the central portion and adhesive layers 3 and 4 (the schematic illustration of FIG. 4) on both sides (front and back). ), and a non-woven fabric sheet 5 (skin fixing sheet) that covers the entire outer shape of the surface of the non-woven fabric sheet 5 and is unpeelably attached by the adhesive layer 3 on the surface side of the non-woven fabric sheet 5. A transparent urethane film 6 (film sheet) and a release paper 7 (which covers at least the entire outer surface of the back surface of the nonwoven fabric sheet 5 and is detachably attached by the adhesive layer on the back surface side of the nonwoven fabric sheet 5). The nonwoven fabric sheet 5 and the urethane film 6 constitute a dressing body 8 that is substantially adhered to the skin. Although the most preferred materials for the skin-fixing sheet, film sheet, and release sheet are described, the materials are not limited to these. For example, the urethane sheet may be another sheet containing an elastomer.
　前記剥離紙７は、前記不織布シート５よりも大きな外形で形成され、該不織布シート５の外形から張り出した部分が剥離作業を容易ならしめる摘まみ部７ａ，７ｂ，７ｃを成すように形成されており、より具体的には、図３中の上側に凸状の摘まみ部７ａが形成され且つ図３中の下側に二股状の摘まみ部７ｂ，７ｃが形成されている。 The release paper 7 is formed to have an outer shape larger than that of the nonwoven fabric sheet 5, and portions projecting from the outer shape of the nonwoven fabric sheet 5 are formed to form gripping portions 7a, 7b, and 7c for facilitating the peeling operation. More specifically, a convex knob portion 7a is formed on the upper side in FIG. 3, and bifurcated knob portions 7b and 7c are formed on the lower side in FIG.
　しかも、特に本実施例にあっては、前記ウレタンフィルム６の少なくとも表面の外形全域を被覆し且つその表面に対し剥離可能且つ再貼着不可となるよう一体的に密着されて形状保持能を付与するシート状のキャリア９が備えられており、このキャリア９には、前記不織布シート５の窓部２に対応する開口部１０が形成されている。 Moreover, particularly in this embodiment, the urethane film 6 covers at least the entire outer shape of the surface of the urethane film 6, and is integrally adhered to the surface so as to be peelable and non-re-adherable, thereby imparting a shape-retaining ability. A sheet-like carrier 9 is provided, and openings 10 corresponding to the windows 2 of the nonwoven fabric sheet 5 are formed in the carrier 9 .
　尚、前記キャリア９と前記ウレタンフィルム６との一体的な密着は、相互間に粘着剤層を介さずに製造段階でそのように密着させて作ることで実現されるものであり、一度剥がしてしまえば、前記キャリア９と前記ウレタンフィルム６の何れにも粘着性は残らないようになっている。 The integral adhesion between the carrier 9 and the urethane film 6 is achieved by making the carrier 9 and the urethane film 6 adhere to each other in the manufacturing stage without an adhesive layer interposed therebetween. Once put away, neither the carrier 9 nor the urethane film 6 remains sticky.
　ここで、前記キャリア９における開口部１０の一側には、この位置で前記キャリア９を分断するＳ字状の切り込み線１１が入れられており、該切り込み線１１を挟んだ一方の側を切り起こすことで前記ドレッシング本体８の最終的な皮膚への貼着後に前記キャリア９の剥離を始める起点が作られるようになっている。 Here, on one side of the opening 10 in the carrier 9, an S-shaped cut line 11 is made to divide the carrier 9 at this position, and one side of the cut line 11 is cut. By raising, a starting point for starting peeling of the carrier 9 after the dressing main body 8 is finally adhered to the skin is created.
　また、特に図３に示している通り、前記キャリア９は、前記剥離紙７と概ね対応した外形を有していて、前記ウレタンフィルム６よりも大きな外形で形成されており、該ウレタンフィルム６の外形から張り出した部分が皮膚への貼付作業を容易ならしめる保持部９ａ，９ｂ，９ｃを成すようになっている。 Further, as particularly shown in FIG. 3, the carrier 9 has an outer shape that roughly corresponds to the release paper 7 and is formed with an outer shape larger than that of the urethane film 6. Portions protruding from the outer shape form holding portions 9a, 9b, and 9c that facilitate the application to the skin.
　更に、前記剥離紙７の凸状の摘まみ部７ａに対応する保持部９ａの両側と、前記剥離紙７の二股状の摘まみ部７ｂ，７ｃに対応する各保持部９ｂ，９ｃの夫々の外側とには、後述する固定テープ１２，１３，１４を剥離し易くするための切欠部９ｄ，９ｅと切欠部９ｆ，９ｇが形成されており、この切欠部の分だけ前記剥離紙７側の摘まみ部７ａ，７ｂ，７ｃの形状と異なっている。 Furthermore, both sides of the holding portion 9a corresponding to the convex knob portion 7a of the release paper 7 and the holding portions 9b and 9c corresponding to the bifurcated knob portions 7b and 7c of the release paper 7, respectively. Cutouts 9d and 9e and cutouts 9f and 9g are formed on the outer side to facilitate the peeling off of fixing tapes 12, 13 and 14, which will be described later. The shape is different from that of the knobs 7a, 7b, 7c.
　即ち、前記キャリア９の各保持部９ａ，９ｂ，９ｃの表面には、図１～図３に示す如き複数の固定テープ１２，１３，１４が剥離可能に貼着されていて、必要に応じカテーテル１５（図５参照）の補強に使用できるようになっており、前記剥離紙７を剥がした段階で、前述の切欠部９ｄ，９ｅと切欠部９ｆ，９ｇにより前記各固定テープ１２，１３，１４の粘着面の一部が露出して該各固定テープ１２，１３，１４の剥離を始める起点が作られるようになっている。 That is, on the surface of each holding portion 9a, 9b, 9c of the carrier 9, a plurality of fixing tapes 12, 13, 14 as shown in FIGS. 15 (see FIG. 5). When the release paper 7 is peeled off, the fixing tapes 12, 13, 14 are fixed by the cutouts 9d, 9e and the cutouts 9f, 9g. A part of the adhesive surface of the fixing tape 12, 13, 14 is exposed to create a starting point from which the fixing tape 12, 13, 14 starts peeling.
　尚、本実施例におけるドレッシング本体８の一側には、後述のカテーテル１５のチューブ１５ａを跨ぐチューブスロット１６が形成されており、該チューブスロット１６に対応した形状が剥離紙７及びキャリア９にも付されているが、ドレッシング本体８の複数箇所にチューブスロット１６を形成しても良いことは勿論である。また、本実施例で説明しているキャリア９や固定テープ１２，１３，１４はオプションであり、必要に応じて付属させれば良いものである。 One side of the dressing body 8 in this embodiment is formed with a tube slot 16 that straddles a tube 15a of a catheter 15, which will be described later. Although attached, it is of course possible to form the tube slots 16 at multiple locations in the dressing body 8 . Further, the carrier 9 and the fixing tapes 12, 13 and 14 described in this embodiment are options and may be attached as required.
　而して、このように医療用ドレッシング材１を構成した場合、使用時に不織布シート５の裏面から剥離紙７を剥がし、図５に示す如く、カテーテル１５の穿刺部に被せて前記不織布シート５の裏面を皮膚に対し貼り付けると、不織布シート５によりカテーテル１５のチューブ１５ａ等が強固に固定され、その窓部２から穿刺部を観察することが可能となり、該穿刺部が衛生的に保護されるという従前通りの機能が発揮される。 When the medical dressing 1 is constructed in this manner, the release paper 7 is peeled off from the back surface of the nonwoven fabric sheet 5 at the time of use, and as shown in FIG. When the back surface is attached to the skin, the tube 15a of the catheter 15 is firmly fixed by the nonwoven fabric sheet 5, and the puncture site can be observed through the window 2, and the puncture site is hygienically protected. The function as before is exhibited.
　この際、図６に模式的に示す通り、従来における裏面全域を粘着剤層としていたウレタンフィルムに代えて、全く粘着剤層を持たないウレタンフィルム６を採用し、窓部２を持つ不織布シート５の表面に付した粘着剤層３を利用して前記ウレタンフィルム６と前記不織布シート５との一体化を図るようにしているので、前記不織布シート５の窓部２を覆うウレタンフィルム６の部分は全く粘着性を持たない領域（非粘着部）として保たれ、穿刺部に留置されているカテーテル１５の針ハブ１５ｂ等への貼り付きの心配がなくなる結果、交換時における意図しない針ハブ１５ｂの抜去等のインシデントが防止される。 At this time, as schematically shown in FIG. 6, a urethane film 6 having no adhesive layer was used instead of a conventional urethane film having an adhesive layer on the entire back surface, and a nonwoven fabric sheet 5 having windows 2 was used. Since the urethane film 6 and the nonwoven fabric sheet 5 are integrated using the adhesive layer 3 attached to the surface of the nonwoven fabric sheet 5, the urethane film 6 covering the window 2 of the nonwoven fabric sheet 5 is It is kept as a region (non-adhesive portion) that has no adhesiveness at all, and as a result, there is no concern that the catheter 15 placed in the puncture portion will stick to the needle hub 15b or the like, and as a result, the needle hub 15b can be unintentionally pulled out at the time of replacement. Such incidents are prevented.
　特に、非粘着部は縦幅（図３におけるＬ1を参照）及び横幅（図３におけるＬ2を参照）の夫々が４０ｍｍ以上の幅寸法を有するのが好ましい。このようにすることで、特許第４８５３５１６号に記載の製品（登録商標：セーフタッチコアレスニードル）においてカテーテルのハブ本体及び翼部に粘着部が接触しないことが確認された。即ち、当該製品はハブ本体と翼部を含めた幅方向が３０ｍｍであり、ハブ本体の高さが１０ｍｍで構成されており、非粘着部が縦幅及び横幅が４０ｍｍ以上の幅寸法を有することで、粘着部が針ハブに接触しないようにすることができ、粘着部が針ハブに貼り付いてしまい、ドレッシング本体８交換時に針ハブが共に動いてしまうという事態の発生を防止することができる。 In particular, the non-adhesive portion preferably has a vertical width (see L1 in FIG. 3) and a horizontal width (see L2 in FIG. 3) of 40 mm or more. By doing so, it was confirmed that the adhesive portion did not come into contact with the hub body and wings of the catheter in the product described in Japanese Patent No. 4853516 (registered trademark: Safe Touch Coreless Needle). That is, the product has a width of 30 mm including the hub body and wings, a hub body with a height of 10 mm, and a non-adhesive part with a vertical width and a horizontal width of 40 mm or more. Therefore, it is possible to prevent the adhesive portion from contacting the needle hub, thereby preventing the adhesive portion from sticking to the needle hub and moving the needle hub together when the dressing body 8 is replaced. .
　尚、非粘着部は針ハブを完全に覆う幅寸法であることが好ましいが、縦幅及び横幅が４０ｍｍ未満であっても、非粘着部を有することで針ハブとの接着面積の最小化を図ることが可能であり、ドレッシング本体交換時に針ハブが共に動いてしまうという事態の発生を低減することは可能である。よって、実施形態に記載の不織布シート５及びウレタンフィルム６によって構成される窓部２及び非粘着部の縦幅及び横幅が４０ｍｍ未満とされてもよい。 The non-adhesive portion preferably has a width dimension that completely covers the needle hub, but even if the vertical and horizontal widths are less than 40 mm, the non-adhesive portion can minimize the bonding area with the needle hub. It is possible to reduce the occurrence of a situation in which the needle hub moves together when the dressing body is replaced. Therefore, the vertical width and horizontal width of the window portion 2 and the non-adhesive portion composed of the nonwoven fabric sheet 5 and the urethane film 6 described in the embodiment may be less than 40 mm.
　このように、非粘着部を有するドレッシング本体８は、ドレッシング本体８交換時の不具合を解消可能である一方、従来に比して接着面積が小さく、接着力が弱くなってしまうという課題も生じる。ドレッシング本体８の幅寸法を広くし、大型化することで接着面積を大きくすることができるが、大型化すると取り回し性が悪化してしまう。このような前提の中で医療用ドレッシング材１の各構成物や形状等の検討を行う中で、出願人は非粘着部を備えるドレッシング本体８は、従来と異なり、非粘着部を介して針ハブ１５ｂがドレッシング本体８上を滑り得るという点に着目した結果、課題を解消し得る種々の構成を見いだした。 As described above, the dressing body 8 having a non-adhesive portion can solve the problem when replacing the dressing body 8, but it also has the problem that the bonding area is smaller than before, and the bonding strength is weak. The bonding area can be increased by widening the width of the dressing main body 8 and enlarging the size, but if the size is increased, handling performance is deteriorated. Under such premise, while studying each component and shape of the medical dressing material 1, the applicant found that the dressing body 8 provided with a non-adhesive part, unlike the conventional one, can be needled through the non-adhesive part. As a result of focusing on the point that the hub 15b can slide on the dressing body 8, various configurations have been found that can solve the problem.
　一つは、非粘着部の柔軟性を粘着部に比して高くする構成である。このようにすることで、針ハブ１５ｂは非粘着部に接すると、針ハブ１５ｂから応力が加わる部分が変形するため、非粘着部における針ハブ１５ｂの位置を立体的に認識しやすく、針ハブ１５ｂを適切な位置に調整しやすい。このため、貼り付け時に粘着部全体が皮膚上に位置するように位置を調整しやすく、安定した皮膚との接着面積が確保できる。また、非粘着部の柔軟性を粘着部に比して高いことで、針ハブ１５ｂから生じた応力が粘着部に対して作用しにくい。このため、針ハブ１５ｂが非粘着部に接した状態での針ハブ１５ｂの位置調整中において、針ハブ１５ｂから生じた応力により粘着部が変形し、粘着面にしわが形成されてしまうといった事態が低減される。このため、粘着部の面積が小さくとも安定して接着効率よく皮膚に貼り付けることができる。 One is a configuration in which the flexibility of the non-adhesive portion is higher than that of the adhesive portion. In this way, when needle hub 15b comes into contact with the non-adhesive portion, the portion to which stress is applied from needle hub 15b is deformed. It is easy to adjust 15b to an appropriate position. For this reason, it is easy to adjust the position so that the entire adhesive portion is positioned on the skin at the time of application, and a stable adhesion area to the skin can be secured. Further, since the non-adhesive portion has higher flexibility than the adhesive portion, the stress generated from the needle hub 15b is less likely to act on the adhesive portion. For this reason, when the needle hub 15b is in contact with the non-adhesive portion and the needle hub 15b is in contact with the non-adhesive portion, the stress generated by the needle hub 15b may deform the adhesive portion and cause wrinkles to form on the adhesive surface. reduced. Therefore, even if the area of the adhesive part is small, it can be attached to the skin stably and efficiently.
　一つは、非粘着部の伸縮性を粘着部に比して高くする構成である。使用者はドレッシング本体８を貼り付ける際、平面的に捉えてしまい、針ハブ１５ｂの高さの分だけ非粘着部の幅が必要であることを失念してしまったり、ドレッシング本体８が針ハブ１５ｂと非平行であるにも関わらず平行であると認識して、固定作業を行ってしまう場合がある。この際、非粘着部でハブ本体や翼部を完全に覆いきれず、接着部に針ハブ１５ｂが接触してしまう可能性がある。この場合、交換時の不具合が生じるばかりか皮膚との接着面積が小さくなり、使用中にドレッシング本体８が皮膚から剥離してしまう事態が生じ得る。しかし、非粘着部を伸縮性を有する構成とすれば、多少使用者が固定位置を見誤ったとしても、針ハブ１５ｂに接した非粘着部が伸びるため、粘着部が針ハブ１５ｂに接触しにくく、皮膚との接着面積を安定させることができる。更に、非粘着部の伸縮性が粘着部に比して高ければ、針ハブ１５ｂに接した非粘着部が優先的に伸びるため、針ハブ１５ｂからの応力が粘着部に及びにくく、粘着部にしわがよりにくい。なお、非粘着部は食品用ラップのような伸縮性を有さないシートであってもよいが、この場合、容易に伸びないので、皮膚との接着面積の安定化を図る上では伸縮性を有する方が好ましい。 One is a configuration in which the elasticity of the non-adhesive portion is higher than that of the adhesive portion. When the user attaches the dressing body 8, the user sees it as a flat surface and forgets that the width of the non-adhesive portion is necessary for the height of the needle hub 15b. Although it is non-parallel to 15b, it may be recognized as parallel, and fixing work may be performed. At this time, there is a possibility that the non-adhesive portion cannot completely cover the hub main body and the wings, and the needle hub 15b comes into contact with the adhesive portion. In this case, not only troubles occur at the time of replacement, but also the adhesion area to the skin becomes small, which may cause the dressing main body 8 to peel off from the skin during use. However, if the non-adhesive portion is stretchable, even if the user misjudges the fixed position, the non-adhesive portion in contact with needle hub 15b will stretch and the adhesive portion will not come into contact with needle hub 15b. It is difficult and can stabilize the adhesion area with the skin. Furthermore, if the stretchability of the non-adhesive portion is higher than that of the adhesive portion, the non-adhesive portion in contact with the needle hub 15b will be stretched preferentially. harder than mine The non-adhesive part may be a non-stretchable sheet such as food wrap. It is preferable to have
　実施形態においては、非粘着部を実現するにあたり、粘着部を多重シート構造とする一方、非粘着部は単一シート構造とすることを採用している。粘着部を単一シート構造とし、非粘着部を多重構造とする場合、即ち、全体が粘着部であるシートの中央に粘着部を有さないシートを固定して非粘着部とした場合、粘着部と非粘着部との境目において生じる段差が皮膚上にできてしまう。従って、皮膚との接着面積を効率的に稼ぐ上では、粘着部を多重シート構造とする一方、非粘着部は単一シート構造とする方が好ましい。粘着部及び非粘着部を単一シート構造で実現することは可能であるが、その場合、接着層が安定せず、接着性が弱まる可能性があり、また、非粘着部の柔軟性や伸縮性を粘着部に比して高くしようとすると肉厚の調整等が必要になってしまう。 In the embodiment, in order to realize the non-adhesive portion, the adhesive portion has a multi-sheet structure, while the non-adhesive portion has a single sheet structure. When the adhesive part has a single sheet structure and the non-adhesive part has a multi-layer structure, that is, when a sheet having no adhesive part is fixed in the center of the sheet whose entirety is the adhesive part to form the non-adhesive part, the adhesive A step is formed on the skin at the boundary between the adhesive part and the non-adhesive part. Therefore, in order to efficiently increase the adhesion area with the skin, it is preferable that the adhesive part has a multi-sheet structure and the non-adhesive part has a single sheet structure. It is possible to realize the adhesive part and the non-adhesive part with a single sheet structure, but in that case, the adhesive layer may not be stable and the adhesiveness may be weakened. If you try to increase the property compared to the adhesive portion, it will be necessary to adjust the thickness.
　実施形態において、不織布シート５の表面がウレタンフィルム６と当接し、不織布シート５の裏面が皮膚に当接する当接面を形成するように構成している。窓部２を設けた不織布シート５がウレタンフィルム６の外側を覆うように設けることも考えられるが、この場合、必然的にウレタンフィルム６の外形から不織布シート５が張り出す形になってしまい、粘着部の柔軟性も比較的高く構成される。結果、しわがよりやすく、又、皮膚との接着面積を増やすことで対応しようとすると、ドレッシング本体８が大型化してしまう。非粘着部を有するドレッシング本体８を実現する上で、不織布シート５の表面がウレタンフィルム６と当接し、不織布シート５の裏面が皮膚に当接する当接面を形成するように構成である方が好ましい。 In the embodiment, the surface of the nonwoven fabric sheet 5 contacts the urethane film 6, and the back surface of the nonwoven fabric sheet 5 forms a contact surface that contacts the skin. It is conceivable that the nonwoven fabric sheet 5 having the window 2 is provided so as to cover the outside of the urethane film 6, but in this case, the nonwoven fabric sheet 5 inevitably protrudes from the outer shape of the urethane film 6. The flexibility of the adhesive portion is also relatively high. As a result, wrinkles are more likely to occur, and the size of the dressing main body 8 increases if an attempt is made to deal with such wrinkles by increasing the adhesion area with the skin. In order to realize the dressing body 8 having a non-adhesive portion, it is preferable that the surface of the nonwoven fabric sheet 5 is in contact with the urethane film 6 and the back surface of the nonwoven fabric sheet 5 forms a contact surface that contacts the skin. preferable.
　しかも、全く粘着剤層を持たないウレタンフィルム６を採用しているので、既存のポリウレタン粘着剤層を持たせたウレタンフィルムを採用した場合よりも一層良好な通気性・透湿性が得られるという付帯効果もある。 Moreover, since the urethane film 6 with no adhesive layer is used, it is possible to obtain better breathability and moisture permeability than the existing urethane film with a polyurethane adhesive layer. There is also an effect.
　更に、従来の如きウレタンフィルム６側に粘着剤層を持たせて不織布シート５との一体化を図る形式では、表面状態を平滑状態にした不織布シート５を使用して接着性を高める必要があったが、不織布シート５側に粘着剤層３を付してウレタンフィルム６との一体化を図る形式とすれば、平滑なウレタンフィルム６に対し自ずから高い接着性が得られることになる。また、不織布は伸縮性を有さないため、粘着部の伸縮性を大きく低下させることができ、非粘着部の伸縮性が粘着部に比して高い構成は容易に実現できる。 Furthermore, in the conventional format in which the urethane film 6 has an adhesive layer and is integrated with the non-woven fabric sheet 5, it is necessary to use the non-woven fabric sheet 5 with a smooth surface to improve adhesion. However, if the adhesive layer 3 is attached to the non-woven fabric sheet 5 side to be integrated with the urethane film 6, high adhesiveness to the smooth urethane film 6 can be naturally obtained. In addition, since the non-woven fabric does not have stretchability, the stretchability of the adhesive portion can be greatly reduced, and a configuration in which the stretchability of the non-adhesive portion is higher than that of the adhesive portion can be easily realized.
　また、非粘着部は外周が粘着部によって囲まれており、非粘着部の形状は円形等様々な形状が設定し得るが、角丸四角形とすることもできる。このようにした場合、円形に比して、非粘着部の中央から針ハブ１５ｂが多少外れた位置に位置してしまっても粘着部が針ハブ１５ｂに当接してしまう事態を低減できる。また、非角丸形状において縁に針ハブ１５ｂの一部が位置する事態は可能性が低いため、角丸四角形とすること接着部の面積を稼ぐことができる。尚、非粘着部の外周全域が粘着部によって囲まれていることが好ましいが、非粘着部の外周の一部が粘着部によって囲まれているようでもあってもよい。また、非粘着部は縦幅及び横幅が４０ｍｍ以上の幅を有しているのが好ましく、即ち非粘着部の面上のいずれかの部分において、縦幅及び横幅が４０ｍｍを有する部分があるのが好ましい。例えば、ドレッシング本体８の中心Ｐから少なくとも２０ｍｍ間において粘着部分が形成されているのが好ましい。 In addition, the outer periphery of the non-adhesive part is surrounded by the adhesive part, and the shape of the non-adhesive part can be set to various shapes such as a circle, but it can also be a square with rounded corners. In this case, compared to a circular shape, even if the needle hub 15b is positioned slightly away from the center of the non-adhesive portion, the situation where the adhesive portion abuts against the needle hub 15b can be reduced. In addition, since it is unlikely that the needle hub 15b is partly located at the edge of the non-rounded shape, the square shape with rounded corners can increase the area of the bonding portion. In addition, although it is preferable that the non-adhesive portion is surrounded by the adhesive portion over the entire outer periphery, it is also possible that part of the outer periphery of the non-adhesive portion is surrounded by the adhesive portion. In addition, the non-adhesive portion preferably has a width of 40 mm or more in length and width. is preferred. For example, it is preferable that the adhesive portion is formed at least 20 mm from the center P of the dressing body 8 .
　また、非粘着部は縦軸（図３における上下方向の軸）及び横軸（図３における左右方向の軸）において幅寸法が４０ｍｍ以上とされると共に、ドレッシング本体８の中心Ｐに位置し、当該中心Ｐを通るように直交する縦軸及び横軸において、粘着部の幅寸法に比して非粘着部の幅寸法が長い。即ち、中心Ｐを通る横軸において、粘着部は非粘着部を挟むように位置し、一方辺側の粘着部と当該一方辺と逆側の他方辺側の粘着部に分かれるが、前記横軸上における一方辺側の粘着部と他方辺側の粘着部の幅寸法の合計（図３中のＬ3＋Ｌ4）より非粘着部の幅寸法（図３におけるＬ2）が長い。更に、中心Ｐから縦軸の上側２０ｍｍの点を踏む横軸においても粘着部の幅寸法の合計より非粘着部の幅寸法が長く、中心Ｐから縦軸の下側２０ｍｍの点を踏む横軸においても粘着部の幅寸法の合計より非粘着部の幅寸法が長い。このような関係性は、中心から縦軸の上側２０ｍｍ～下側２０ｍｍに亘って同様である。 In addition, the non-adhesive portion has a width dimension of 40 mm or more on the vertical axis (the vertical axis in FIG. 3) and the horizontal axis (the horizontal axis in FIG. 3), and is located at the center P of the dressing body 8, The width of the non-adhesive portion is longer than the width of the adhesive portion on the vertical axis and the horizontal axis that are perpendicular to each other so as to pass through the center P. That is, on the horizontal axis passing through the center P, the adhesive portion is positioned so as to sandwich the non-adhesive portion, and is divided into the adhesive portion on one side and the adhesive portion on the other side opposite to the one side. The width of the non-adhesive portion (L 2 in FIG. 3) is longer than the total width of the adhesive portion on one side and the adhesive portion on the other side (L 3 +L 4 in FIG. 3). Furthermore, the width of the non-adhesive portion is longer than the sum of the widths of the adhesive portions on the horizontal axis that is 20 mm above the vertical axis from the center P, and the horizontal axis is 20 mm below the vertical axis from the center P. Also, the width dimension of the non-adhesive portion is longer than the total width dimension of the adhesive portion. Such a relationship is the same over 20 mm above and 20 mm below the vertical axis from the center.
　また、以上は横軸の向きにおける幅寸法の関係性について説明したものであるが、縦軸の向きにおける幅寸法の関係性についても同様であり（説明の便宜上から図３における符号は省略）、中心Ｐから横軸の左側２０ｍｍの点を踏む縦軸においても粘着部の幅寸法の合計より非粘着部の幅寸法が長く、中心から横軸の右側２０ｍｍの点を踏む縦軸においても粘着部の幅寸法の合計より非粘着部の幅寸法が長い。このような関係性は、中心Ｐから横軸の左側２０ｍｍ～右側２０ｍｍに亘って同様である。尚、実施形態と異なり、縦軸及び横軸の一方のみが粘着部の幅寸法の合計より非粘着部の幅寸法が長いように構成されてもよい。更に、非粘着部の外方端部から粘着部の外方端部までの幅（図３中のＬ3又はＬ4）が１０ｍｍ以上に形成されている。 Further, the above describes the relationship of the width dimension in the direction of the horizontal axis, but the same applies to the relationship of the width dimension in the direction of the vertical axis (for convenience of explanation, the reference numerals in FIG. The width of the non-adhesive portion is longer than the total width of the adhesive portion on the vertical axis that is 20 mm on the left side of the horizontal axis from the center P, and the adhesive portion is also on the vertical axis that is 20 mm on the right side of the horizontal axis from the center. The width of the non-adhesive part is longer than the total width of the Such a relationship is the same from 20 mm on the left side to 20 mm on the right side of the horizontal axis from the center P. In addition, unlike the embodiment, only one of the vertical axis and the horizontal axis may be configured such that the width dimension of the non-adhesive portion is longer than the total width dimension of the adhesive portion. Furthermore, the width from the outer end of the non-adhesive portion to the outer end of the adhesive portion (L 3 or L 4 in FIG. 3) is 10 mm or more.
　このような幅寸法であることにより、長期間に亘ってドレッシング本体８を皮膚上に固定できることが確認された。即ち、非粘着部の面積が広い分、柔軟性及び伸縮性が向上するため、接着部にしわがよりにくく、また、接着部にはある程度の接着面積が確保されるため、ドレッシング本体８が皮膚上に固定されていても剥離する事態が少なく、長期間に亘る使用に耐え得るということが確認された。更に、非粘着部の面積が広いため、貼り付け時に特段の注意を払うことなく針ハブ１５ｂに粘着部が接触する事態を低減できることが確認された。尚、非粘着部の外方端部から粘着部の外方端部までの幅を１０ｍｍとしても長期間使用できることが確認されたが、その場合、接着性が高い接着層を採用する必要があるため、ドレッシング本体８を皮膚から剥がす際に発赤等が生じる可能性がある。このため非粘着部の外方端部から粘着部の外方端部までの幅寸法は１５ｍｍ以上であることが好ましい。図３に記載の実施形態における具体的寸法は、非粘着部の外方端部から粘着部の外方端部までの縦幅が１８ｍｍ、非粘着部の外方端部から粘着部の外方端部までの横幅は２８ｍｍに形成されている。また、非粘着部の縦幅及び横幅は４０ｍｍ以上が好ましいが、５０ｍｍ以上９０ｍｍ以下であることがより好ましく、このようにすることで、針ハブ１５ｂと皮膚の間に意図せぬクリアランスやガーゼ等が入れられる場合も接着部に針ハブ１５ｂが接触しにくく、且つ、取り回し性がよいドレッシング本体８とすることができる。図３に記載の実施形態における具体的寸法は、非粘着部の縦幅及び横幅が６０ｍｍとされている。 It was confirmed that with such a width dimension, the dressing main body 8 can be fixed on the skin for a long period of time. That is, since the area of the non-adhesive portion is wide, flexibility and stretchability are improved, so wrinkles are less likely to occur in the adhesive portion, and a certain amount of adhesive area is secured in the adhesive portion, so that the dressing body 8 can be placed on the skin. It has been confirmed that even when fixed to a wall, there is little chance of peeling off, and that it can be used for a long period of time. Furthermore, it was confirmed that since the area of the non-adhesive portion is large, it is possible to reduce the situation in which the adhesive portion comes into contact with the needle hub 15b without special care being taken during attachment. In addition, it was confirmed that even if the width from the outer end of the non-adhesive portion to the outer end of the adhesive portion is 10 mm, it can be used for a long time, but in that case, it is necessary to adopt an adhesive layer with high adhesiveness. Therefore, redness or the like may occur when peeling the dressing body 8 from the skin. Therefore, it is preferable that the width dimension from the outer end of the non-adhesive portion to the outer end of the adhesive portion is 15 mm or more. Specific dimensions in the embodiment shown in FIG. The width to the end is formed to be 28 mm. The vertical and horizontal widths of the non-adhesive portion are preferably 40 mm or more, and more preferably 50 mm or more and 90 mm or less. The needle hub 15b is less likely to come into contact with the adhesive portion even when a needle is inserted, and the dressing main body 8 can be easily handled. As for specific dimensions in the embodiment shown in FIG. 3, the vertical and horizontal widths of the non-adhesive portion are 60 mm.
　剥離紙７は不織布シート５よりも大きな外形で形成され且つ該不織布シート５の外形から張り出した部分が剥離作業を容易ならしめる摘まみ部７ａ，７ｂ，７ｃを成すように形成されている。このため、前記摘まみ部７ａ，７ｂ，７ｃを指先で摘まんで剥離紙７を簡単に剥がすことが可能となる。 The release paper 7 is formed to have an outer shape larger than that of the nonwoven fabric sheet 5, and the portions projecting from the outer shape of the nonwoven fabric sheet 5 are formed to form gripping portions 7a, 7b, and 7c for facilitating the peeling work. Therefore, the release paper 7 can be easily peeled off by pinching the gripping portions 7a, 7b, and 7c with the fingertips.
　更に、ウレタンフィルム６の少なくとも表面の外形全域を被覆し且つその表面に対し剥離可能且つ再貼着不可となるよう一体的に密着されて形状保持能を付与するキャリア９が備えられているので、剥離紙７を剥がした後に腰が無くなるウレタンフィルム６及び不織布シート５に対しキャリア９により形状保持能を付与することが可能となり、皮膚への貼付作業におけるウレタンフィルム６及び不織布シート５のハンドリングが良くなる。 Furthermore, since the carrier 9 is provided, which covers the entire outer shape of at least the surface of the urethane film 6 and is integrally adhered to the surface so that it can be peeled off and cannot be re-adhered, thereby imparting a shape-retaining ability. The carrier 9 can impart shape-retaining ability to the urethane film 6 and the nonwoven fabric sheet 5, which lose their stiffness after the release paper 7 is peeled off, so that the urethane film 6 and the nonwoven fabric sheet 5 can be easily handled during application to the skin. Become.
　また、キャリア９がウレタンフィルム６よりも大きな外形で形成され且つウレタンフィルム６の外形から張り出した部分が皮膚への貼付作業を容易ならしめる保持部９ａ，９ｂ，９ｃがドレッシング本体８を挟むように一対形成されているので、剥離紙７を剥がした後で保持部９ａと保持部９ｂ，９ｃを各手の指で摘まんでウレタンフィルム６及び不織布シート５を取り扱うことで、これらウレタンフィルム６及び不織布シート５の裏面に触れずに皮膚への貼付作業を行うことが可能となる。このため、粘着部に指が触れることなく、ドレッシング本体８の貼り付け操作を行うことができ、皮膚にドレッシング本体８を貼り付ける際に、指が粘着部に触れてしまい、皮脂により接着効果が低下するといった事態を防止することができる。 Further, the carrier 9 is formed to have an outer shape larger than that of the urethane film 6, and the portion protruding from the outer shape of the urethane film 6 is arranged so that the holding portions 9a, 9b, 9c sandwich the dressing main body 8 so as to facilitate the operation of applying the dressing to the skin. Since the urethane film 6 and the nonwoven fabric sheet 5 are formed in pairs, the urethane film 6 and the nonwoven fabric sheet 5 can be handled by pinching the holding portion 9a and the holding portions 9b and 9c with the fingers of each hand after peeling off the release paper 7. It is possible to perform the sticking operation to the skin without touching the back surface of the sheet 5.例文帳に追加For this reason, the dressing body 8 can be applied without touching the adhesive part with a finger. It is possible to prevent a situation such as a decline.
　更に、前記キャリア９が不織布シート５の窓部２に対応する開口部１０を有しているので、前記キャリア９の開口部１０により不織布シート５の窓部２からの視認性が確保され、前記キャリア９により前記不織布シート５の窓部２からの視認性が阻害されることがなくなる。また、非粘着部が針ハブ１５ｂと接して変形する際に、キャリア９によってその変形が阻害されることもない。 Further, since the carrier 9 has the openings 10 corresponding to the windows 2 of the nonwoven fabric sheet 5, the visibility through the windows 2 of the nonwoven fabric sheet 5 is ensured by the openings 10 of the carrier 9. The visibility of the nonwoven fabric sheet 5 through the window 2 is not hindered by the carrier 9 . Further, when the non-adhesive portion contacts the needle hub 15b and deforms, the carrier 9 does not hinder the deformation.
　上記形態例によれば、不織布シート５の窓部２を覆うウレタンフィルム６の部分を全く粘着性を持たない領域として保つことができるので、穿刺部に留置されているカテーテル針への貼り付きを未然に回避して、交換時における意図しないカテーテル針の抜去等のインシデントを低減することができ、しかも、全く粘着剤層を持たないウレタンフィルム６を採用したことにより、既存のポリウレタン粘着剤層を持たせたウレタンフィルム６を採用した場合よりも一層良好な通気性・透湿性を得ることができる。 According to the above embodiment, the portion of the urethane film 6 covering the window portion 2 of the non-woven fabric sheet 5 can be maintained as a completely non-adhesive region. It is possible to prevent incidents such as unintentional removal of the catheter needle at the time of replacement by avoiding it in advance, and by adopting the urethane film 6 that does not have an adhesive layer at all, the existing polyurethane adhesive layer can be reduced. Better breathability and moisture permeability can be obtained than when the urethane film 6 is held.
　また、摘まみ部７ａ，７ｂ，７ｃを指先で摘まんで剥離紙７を簡単に剥がすことが可能となるので、剥離紙７の剥離作業を容易に行うことができ、医療用ドレッシング材１の貼り付けや交換に要する作業負担の軽減化を図ることができる。しかも、キャリア９のドレッシング本体８に対する剥離抵抗力を剥離紙７のドレッシング本体８に対する剥離抵抗力に比して大きく設定することで、使用者が剥離紙を除去する際にドレッシング本体８からキャリア９が剥離してしまう事態を低減できる。 In addition, since the release paper 7 can be easily peeled off by pinching the gripping portions 7a, 7b, and 7c with the fingertips, the release paper 7 can be easily peeled off, and the medical dressing material 1 can be applied. It is possible to reduce the work load required for attachment and replacement. Moreover, by setting the peeling resistance of the carrier 9 to the dressing main body 8 larger than the peeling resistance of the release paper 7 to the dressing main body 8, when the user removes the release paper, the carrier 9 is removed from the dressing main body 8. It is possible to reduce the situation where the peeling occurs.
　更に、剥離紙７を剥がした後に腰が無くなるウレタンフィルム６及び不織布シート５に対しキャリア９により形状保持能を付与することができ、皮膚への貼付作業におけるウレタンフィルム６及び不織布シート５のハンドリングを良くすることができるので、医療用ドレッシング材１の貼り付けや交換に要する作業負担の更なる軽減化を図ることができる。 Furthermore, the carrier 9 can impart shape retention ability to the urethane film 6 and the nonwoven fabric sheet 5, which lose their stiffness after the release paper 7 is peeled off, which facilitates the handling of the urethane film 6 and the nonwoven fabric sheet 5 during application to the skin. Therefore, it is possible to further reduce the work load required for attaching and replacing the medical dressing 1 .
　また、ドレッシング本体８を皮膚上に貼り付けた後において、長期間に亘ってドレッシング本体８を皮膚上に固定される。非粘着部を有するドレッシング本体８は粘着面積が従来に比して小さく、また、針ハブ１５ｂから外方に延びるチューブ１５ａが存在する側においてはチューブ１５ａがある分粘着部の一部が皮膚から浮いてしまう。このため、日常生活を送る中でチューブ１５ａ近傍において徐々に皮膚から粘着部が剥離していき、粘着性が損なわれ、意図せずドレッシング本体８が皮膚から剥がれてしまう可能性がある。チューブ１５ａが存在する側の辺の接着部の面積を大きくすることが考えられるが、その場合、ドレッシング本体８のサイズが大型化してしまい、取り回しがしにくくなってしまったり、針ハブ１５ｂに対するドレッシング本体８の向きが決まってしまい、皮膚への貼り付け方に応用が利かなくなるなど、使用者に余計なストレスを与えてしまう。これに対し、ドレッシング本体８に対して分離可能な固定テープ１２，１３，１４を備えることによって、ドレッシング本体８を貼り付けた後にチューブ１５ａが存在する側の辺に固定テープ１２，１３，１４を更に貼り付け、接着力の補強を行うことができる。このようにすれば、非粘着部を有するドレッシング本体８であっても長期間に亘ってドレッシング本体８が皮膚から剥がれにくくすることができる。 Also, after the dressing main body 8 is attached on the skin, the dressing main body 8 is fixed on the skin for a long period of time. The dressing body 8 having a non-adhesive portion has a smaller adhesive area than the conventional one. Floating. Therefore, in daily life, the adhesive portion gradually peels off from the skin in the vicinity of the tube 15a, and the adhesiveness is impaired, so that the dressing main body 8 may be unintentionally peeled off from the skin. It is conceivable to increase the area of the adhesive part on the side where the tube 15a exists, but in that case, the size of the dressing body 8 increases, making it difficult to handle, and the dressing on the needle hub 15b. The direction of the main body 8 is fixed, and the method of sticking to the skin becomes inapplicable, which gives unnecessary stress to the user. On the other hand, by providing the fixing tapes 12, 13, and 14 that can be separated from the dressing body 8, the fixing tapes 12, 13, and 14 are attached to the side where the tube 15a exists after the dressing body 8 is attached. Furthermore, it is possible to stick and reinforce the adhesive force. In this way, even if the dressing body 8 has a non-adhesive portion, it is possible to prevent the dressing body 8 from peeling off from the skin for a long period of time.
　また、剥離紙７を剥がした後で前記保持部９ａ，９ｂ，９ｃを摘まんでウレタンフィルム６及び不織布シート５を取り扱うことにより、これらウレタンフィルム６及び不織布シート５の裏面に触れずに皮膚への貼付作業を行うことができ、穿刺部や皮膚に当たる面を清潔状態に維持することができる。 Also, after peeling off the release paper 7, the holding portions 9a, 9b, 9c are pinched to handle the urethane film 6 and the nonwoven fabric sheet 5, so that the back surfaces of the urethane film 6 and the nonwoven fabric sheet 5 are not touched and the skin is not touched. The sticking operation can be performed, and the puncture site and the surface coming into contact with the skin can be kept clean.
　更に、キャリア９の開口部１０により不織布シート５の窓部２からの視認性を確保することができ、前記キャリア９により前記不織布シート５の窓部２からの視認性が阻害される不具合を未然に回避することができる。 Furthermore, the opening 10 of the carrier 9 can ensure visibility through the window 2 of the nonwoven fabric sheet 5, and the carrier 9 prevents the visibility of the nonwoven fabric sheet 5 through the window 2 from being obstructed. can be avoided.
　尚、本発明の医療用ドレッシング材は、上述の形態例にのみ限定されるものではなく、剥離紙及びキャリアには図示例以外の形状を採用することも可能であること、また、必要に応じ剥離紙及びキャリアを複数のパーツに分割して構成しても良いこと、更には、図示例において、不織布シート（皮膚固定用シート）の窓部全域を非粘着部とする場合について説明しているが、窓部の領域の一部だけを非粘着部とすることも可能であること、その他、本発明の要旨を逸脱しない範囲内において種々変更を加え得ることは勿論である。また、本発明の医療用ドレッシング材は、特に針ハブを皮膚上に固定するのに好ましいが、固定対象物は針ハブに限らず、その他の長期間留置される医療用具を固定してもよい。また、本発明は高さを有する医療用具を皮膚上に固定するのに好ましくは、特に穿刺部がチューブに対して直交している留置器具を皮膚上に固定するのに好ましい。 It should be noted that the medical dressing of the present invention is not limited to the above-described examples of forms, and that the release paper and carrier may adopt shapes other than those shown in the examples. The release paper and the carrier may be divided into a plurality of parts, and furthermore, in the illustrated example, the case where the entire window portion of the non-woven fabric sheet (skin fixing sheet) is a non-adhesive portion is explained. However, it is of course possible to make only part of the region of the window part non-adhesive, and other various modifications can be made without departing from the gist of the present invention. In addition, the medical dressing of the present invention is particularly preferable for fixing needle hubs on the skin, but the fixed object is not limited to needle hubs, and other medical devices that are left in place for a long period of time may be fixed. . Further, the present invention is preferably used for fixing a tall medical device on the skin, and particularly for fixing an indwelling device in which the puncture portion is perpendicular to the tube.
１　　医療用ドレッシング材
２　　窓部
３　　粘着剤層
４　　粘着剤層
５　　不織布シート（皮膚固定用シート）
６　　ウレタンフィルム（フィルムシート）
７　　剥離紙（剥離シート）
７ａ　　摘まみ部
７ｂ　　摘まみ部
７ｃ　　摘まみ部
９　　キャリア（保持シート）
９ａ　　保持部
９ｂ　　保持部
９ｃ　　保持部
９ｄ　　切欠部
９ｅ　　切欠部
９ｆ　　切欠部
９ｇ　　切欠部
１０　　開口部 1 Medical dressing material 2 Window part 3 Adhesive layer 4 Adhesive layer 5 Non-woven fabric sheet (skin fixing sheet)
6 Urethane film (film sheet)
7 release paper (release sheet)
7a Knob portion 7b Knob portion 7c Knob portion 9 Carrier (holding sheet)
9a holding portion 9b holding portion 9c holding portion 9d notch 9e notch 9f notch 9g notch 10 opening

Claims (11)

  1. 　皮膚側の裏面と該裏面に対し逆側の表面とを有するドレッシング本体と、
    　前記裏面に剥離可能に貼り付けられる剥離シートとを備え、
    　前記裏面は粘着部と非粘着部を有し、
    　非粘着部は縦幅及び横幅が４０ｍｍ以上の幅を有し、
    　粘着部は非粘着部を囲むように形成されていることを特徴とする留置器具を皮膚上に固定するための医療用ドレッシング材。     a dressing body having a skin-side back surface and a surface opposite to the back surface;
    A release sheet that is detachably attached to the back surface,
    The back surface has an adhesive portion and a non-adhesive portion,
    The non-adhesive part has a vertical width and a horizontal width of 40 mm or more,
    A medical dressing material for fixing an indwelling instrument on the skin, wherein the adhesive part is formed so as to surround the non-adhesive part.
  2. 　前記非粘着部は前記粘着部に比して柔軟性が高いことを特徴とする請求項１に記載の医療用ドレッシング材。 The medical dressing material according to claim 1, wherein the non-adhesive portion is more flexible than the adhesive portion.
  3. 　前記ドレッシング本体はフィルムシートと、中央が切り取られた皮膚固定用シートからなり、
    　皮膚固定用シートはフィルムシートと対向面間で接合されていることを特徴とする請求項１に記載の医療用ドレッシング材。     The dressing body consists of a film sheet and a skin-fixing sheet with the center cut off,
    2. The medical dressing material according to claim 1, wherein the skin-fixing sheet is bonded to the film sheet between the opposing surfaces.
  4. 前記皮膚固定用シートの表面は前記フィルムシートが当接し、
    　前記皮膚固定用シートの裏面は皮膚に当接する当接面を形成することを特徴とする請求項３に記載の医療用ドレッシング材。     The surface of the skin fixing sheet is in contact with the film sheet,
    4. The medical dressing material according to claim 3, wherein the back surface of said skin-fixing sheet forms a contact surface that contacts the skin.
  5. 　前記フィルムシートと前記皮膚固定用シートは前記皮膚固定用シートに設けた粘着剤層によって固定されており、前記皮膚固定用シートは両面に粘着剤層を備えた不織布シートであり、前記フィルムシートはウレタンフィルムであることを特徴とする請求項３に記載の医療用ドレッシング材。 The film sheet and the skin-fixing sheet are fixed by an adhesive layer provided on the skin-fixing sheet, the skin-fixing sheet is a nonwoven fabric sheet having adhesive layers on both sides, and the film sheet is 4. The medical dressing material according to claim 3, which is a urethane film.
  6. 　前記フィルムシートは伸縮性を有するフィルムで構成され、
    　前記非粘着部は前記粘着部に比して伸縮性が高く形成されていることを特徴とする請求項３に記載の医療用ドレッシング材。     The film sheet is made of a stretchable film,
    The medical dressing material according to claim 3, wherein the non-adhesive portion is formed to have higher elasticity than the adhesive portion.
  7. 　前記ドレッシング本体から分離可能な固定テープを更に備えていることを特徴とする請求項１に記載の医療用ドレッシング材。 The medical dressing material according to claim 1, further comprising a fixing tape separable from the dressing body.
  8. 　前記ドレッシング本体の表面に離脱可能に貼り付けられた保持シートを更に備え、
    　前記保持シートはドレッシング本体の外形から張り出した保持部を有することを特徴とする請求項１に記載の医療用ドレッシング材。     Further comprising a holding sheet detachably attached to the surface of the dressing body,
    2. The medical dressing material according to claim 1, wherein the holding sheet has a holding part projecting from the outer shape of the dressing body.
  9. 　前記保持シートの前記ドレッシング本体に対する剥離抵抗力が前記剥離シートの前記ドレッシング本体に対する剥離抵抗力に比して大きいことを特徴とする請求項１に記載の医療用ドレッシング材。 The medical dressing according to claim 1, wherein the peeling resistance of the holding sheet to the dressing body is greater than the peeling resistance of the release sheet to the dressing body.
  10. 　ドレッシング本体の中心を通るように直交する縦軸及び横軸の少なくとも何れか一方において、前記粘着部の幅寸法に比して前記非粘着部の幅寸法が長く、前記非粘着部の外方端部から前記粘着部の外方端部までの幅寸法が１０ｍｍ以上であることを特徴とする請求項１に記載の医療用ドレッシング材。 The width dimension of the non-adhesive portion is longer than the width dimension of the adhesive portion in at least one of the vertical axis and the horizontal axis that are perpendicular to each other so as to pass through the center of the dressing body, and the outer end of the non-adhesive portion is 2. The medical dressing material according to claim 1, wherein the width from the adhesive portion to the outer edge of the adhesive portion is 10 mm or more.
  11. 　任意の位置に窓部を開口し且つ両面に粘着剤層を備えた不織布シートと、非粘着部を有し且つ前記不織布シートの表面に対して剥離不能に貼着された透明なウレタンフィルムと、前記不織布シートの裏面に対して剥離可能に貼着された剥離シートとを備えたことを特徴とする医療用ドレッシング材。 A non-woven fabric sheet having a window portion opened at an arbitrary position and having adhesive layers on both sides, a transparent urethane film having a non-adhesive portion and non-peelably affixed to the surface of the non-woven fabric sheet; A medical dressing comprising: a release sheet detachably adhered to the back surface of the nonwoven fabric sheet.
PCT/JP2022/036676 2021-09-30 2022-09-30 Medical dressing material WO2023054670A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009066040A (en) * 2007-09-11 2009-04-02 Okayama Univ Cover dressing for maggot therapy
CN203400254U (en) * 2013-06-20 2014-01-22 北京健康广济贸易有限公司 Self-adhesive film dressing
JP2015526138A (en) * 2012-06-26 2015-09-10 スリーエム イノベイティブ プロパティズ カンパニー Medical care product with multiple adhesives
JP2020536713A (en) * 2017-10-09 2020-12-17 スリーエム イノベイティブ プロパティズ カンパニー Fixed dressing with compatible edges

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009066040A (en) * 2007-09-11 2009-04-02 Okayama Univ Cover dressing for maggot therapy
JP2015526138A (en) * 2012-06-26 2015-09-10 スリーエム イノベイティブ プロパティズ カンパニー Medical care product with multiple adhesives
CN203400254U (en) * 2013-06-20 2014-01-22 北京健康广济贸易有限公司 Self-adhesive film dressing
JP2020536713A (en) * 2017-10-09 2020-12-17 スリーエム イノベイティブ プロパティズ カンパニー Fixed dressing with compatible edges

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