WO1996021410A1 - Structure en couches auto-adhesive - Google Patents

Structure en couches auto-adhesive Download PDF

Info

Publication number
WO1996021410A1
WO1996021410A1 PCT/GB1996/000055 GB9600055W WO9621410A1 WO 1996021410 A1 WO1996021410 A1 WO 1996021410A1 GB 9600055 W GB9600055 W GB 9600055W WO 9621410 A1 WO9621410 A1 WO 9621410A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheet
laminate
carrier
tab
holding portion
Prior art date
Application number
PCT/GB1996/000055
Other languages
English (en)
Inventor
Thomas Gilchrist
David Michael Healy
Original Assignee
Giltech Limited
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 Giltech Limited filed Critical Giltech Limited
Priority to JP8521521A priority Critical patent/JPH10511881A/ja
Priority to AU43532/96A priority patent/AU4353296A/en
Priority to EP96900147A priority patent/EP0802777A1/fr
Publication of WO1996021410A1 publication Critical patent/WO1996021410A1/fr

Links

Classifications

    • 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 plasters or dressings
    • A61F13/023—Adhesive plasters or dressings wound covering film layers without a fluid handling layer
    • 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
    • A61F2013/00089—Wound bandages
    • A61F2013/00153—Wound bandages coloured or with decoration pattern or printing
    • 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
    • A61F2013/00361—Plasters
    • A61F2013/00365—Plasters use
    • A61F2013/00519—Plasters use for treating burn
    • A61F2013/00523—Plasters use for treating burn with hydrogel
    • 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
    • A61F2013/00361—Plasters
    • A61F2013/00727—Plasters means for wound humidity control
    • A61F2013/00731—Plasters means for wound humidity control with absorbing pads
    • 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
    • A61F2013/00361—Plasters
    • A61F2013/00727—Plasters means for wound humidity control
    • A61F2013/00748—Plasters means for wound humidity control with hydrocolloids or superabsorbers
    • 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
    • A61F2013/00361—Plasters
    • A61F2013/00795—Plasters special helping devices
    • A61F2013/008—Plasters special helping devices easy removing of the protection sheet
    • A61F2013/00804—Plasters special helping devices easy removing of the protection sheet different adhesion of different adhesive layers
    • 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
    • A61F2013/00361—Plasters
    • A61F2013/00795—Plasters special helping devices
    • A61F2013/00817—Plasters special helping devices handles or handling tabs
    • 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
    • A61F2013/00361—Plasters
    • A61F2013/00795—Plasters special helping devices
    • A61F2013/00829—Plasters special helping devices rigid or semi-rigid backing
    • 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
    • A61F2013/00361—Plasters
    • A61F2013/00846—Plasters with transparent or translucent part
    • 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
    • A61F2013/00361—Plasters
    • A61F2013/00855—Plasters pervious to air or vapours
    • A61F2013/00863—Plasters pervious to air or vapours with pores
    • 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
    • A61F2013/00361—Plasters
    • A61F2013/00855—Plasters pervious to air or vapours
    • A61F2013/00868—Plasters pervious to air or vapours thin film
    • 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
    • A61F2013/00361—Plasters
    • A61F2013/00902—Plasters containing means
    • A61F2013/00906—Plasters containing means for transcutaneous or transdermal drugs application
    • 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
    • A61F2013/00361—Plasters
    • A61F2013/00902—Plasters containing means
    • A61F2013/0091—Plasters containing means with disinfecting or anaesthetics means, e.g. anti-mycrobic
    • 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
    • A61F2013/00361—Plasters
    • A61F2013/00902—Plasters containing means
    • A61F2013/00927—Plasters containing means with biological activity, e.g. enzymes for debriding wounds or others, collagen or growth factors

Definitions

  • This invention relates to a laminate, and relates particularly but not exclusively to a dressing which is self-adherent to body surfaces around a wound.
  • laminates for use as wound dressings have become available which are based on plastics films, commonly polyurethane films.
  • the film may contain or act as a carrier for substances which act as bacteriostats or promote healing, for example, silver salts or alginates.
  • Film dressings of this nature have considerable advantages. Firstly, they can readily be produced in transparent form and thus allow the condition of a wound to be monitored without removing the dressing. Secondly, they can be produced in micro-porous forms which allow movement of water vapour to the exterior of the dressing and movement of air to the interior of the dressing while preventing movement of bacteria through the dressing; this is of particular benefit in treating exuding wounds such as burns.
  • a disadvantage associated with known film dressings has been that they can be difficult to apply to a wound. It is usual for a film dressing to have an adhesive layer for application to the skin of a user, the adhesive layer being initially covered by a release paper. Once the release paper is removed from the adhesive layer, the film is delicate and difficult to handle. Stretching of the film can destroy its barrier integrity, whilst a lack of tension during application can lead to wrinkling. For these reasons, most film dressings currently used are provided with a stiffening edge or frame on the outer face, which stiffening must be removed after the dressing has been applied. Known arrangements of dressings can, however, be undesirably complex to apply to a wound or other desired area.
  • the present invention provides a laminate having an associated holding portion, the laminate comprising a carrier sheet sandwiched between a removable cover sheet and a removable backing sheet, the laminate further comprising a cover sheet tab attached to the cover sheet and extending away from the carrier sheet, a backing sheet tab attached to the backing sheet and extending away from the carrier sheet and wherein the holding portion is releasably connected to the carrier sheet and is positioned so that it extends along a substantially central portion of one edge of the laminate.
  • the laminate may be provided as a dressing, for example, a wound dressing, or a dressing intended to release a medicament or therapeutic agent.
  • the laminate may be suitable as a medium for administration of an active ingredient in a controlled release manner over a relatively long period of time (eg several days to weeks) .
  • the active ingredient will normally be suitable for transdermal administration.
  • the cover sheet tab and backing sheet tab preferably facilitate removal of the cover sheet and backing sheet respectively from the laminate to facilitate application of the laminate to a wound or other area.
  • the holding portion is preferably attached to the laminate at a substantially central portion of the edge at which it is positioned and/or on each side of that substantially central portion.
  • the holding portion extends substantially along one edge of the laminate.
  • the holding portion may be attached to the carrier sheet by means of one or more lines of weakness which may be provided by perforations.
  • the holding portion may be a continuation of the laminate.
  • the carrier sheet may be formed of a polymeric film material.
  • the carrier sheet is substantially porous to vapour and air but is substantially impermeable to particles of dirt or other contaminants, to micro-organisms and pathogens; the carrier sheet may be comprised wholly or partially of polyurethane or of compositions containing polyurethane.
  • the carrier sheet may comprise (for example be impregnated or coated with) a medicament or a therapeutic agent (for example, an antibiotic antiseptic, antibacterial, a bacteriostat) , a substance which is intended to promote healing (for example by stimulation of cell growth) or by an absorbent.
  • a medicament or a therapeutic agent for example, an antibiotic antiseptic, antibacterial, a bacteriostat
  • the carrier sheet may be impregnated with a silver compound or an alginate.
  • the carrier sheet may be provided with an absorbent island, for example an alginate pad, which may cover the area to be treated.
  • a surface of the carrier sheet may be wholly or partially coated with a pressure sensitive adhesive to facilitate its attachment and retention to the area to be treated.
  • the pressure sensitive adhesive may be a skin friendly acrylic adhesive.
  • the cover sheet tab may be provided by a tab secured to the cover sheet.
  • the cover sheet tab is preferably positioned at the laminate adjacent to the holding portion.
  • the cover sheet tab may extend across the width of the laminate and may be of a similar length to the holding portion.
  • Positioning the cover sheet tab adjacent to the holding portion may facilitate removal of the cover sheet from the laminate in use.
  • the holding portion can be held by the user in one hand and the cover sheet tab is pulled away from the holding portion (thus removing the cover sheet from the laminate) by the user using his or her other hand.
  • the backing sheet tab may be provided as an extension of the backing sheet; it may extend beyond a periphery of the carrier layer of the laminate.
  • the backing sheet tab may extend substantially along one edge of the laminate.
  • the backing sheet tab extends along a side of the laminate which is opposite the holding portion.
  • the backing sheet tab may be formed of a flexible tape, for example a polypropylene tape; other self-adhesive pressure sensitive tapes are also suitable.
  • the backing sheet may be secured to the laminate by means of adhesion between the material of the backing sheet and the material of the carrier sheet; alternatively, it may be held on the carrier sheet by a separate adhesive material.
  • the backing sheet is preferably affixed to the rear face of the carrier sheet with an adhesiveness which is less than the adhesiveness between the front face of the carrier sheet and the cover sheet or, when the laminate has been affixed to a surface, between the carrier sheet and the surface (for example, where the laminate is a dressing the surface will be the wound to which it is applied) .
  • the backing sheet may have instructions for use of the laminate printed on it; it may have a pattern printed on it.
  • One or more of the carrier sheet, the cover sheet and the backing sheet may be translucent or substantially transparent; this may facilitate visual alignment of the laminate over a wound site when it is to be applied. Where the carrier sheet is substantially transparent, this may facilitate visual inspection of a wound covered by the laminate, when the laminate is in the form of a dressing, without necessitating removal of the dressing from the wound.
  • the cover sheet tab and/or the backing sheet tab may be coloured and/or have a pattern and/or indications printed on it to identify the tab region to a user.
  • the present invention provides a method of applying a laminate in accordance with the first aspect of the invention, in which: a) a user grips the holding portion in one hand and removes the cover sheet from the laminate by holding the cover sheet tab and pulling the cover sheet tab away from the holding portion to detach the cover sheet from the carrier sheet; b) the exposed surface of the carrier sheet is then applied over a wound or other desired area using the holding portion to grip and position the dressing; c) the backing sheet is removed from the laminate by gripping the backing sheet tab and pulling the backing sheet tab away from the carrier layer to detach the backing sheet from the carrier sheet; and d) the holding portion is then removed from the positioned carrier sheet.
  • the present invention provides a method of manufacturing a laminate in accordance with the first aspect of the invention, said method comprising the following steps: a) providing a laminate having a carrier sheet sandwiched between a cover sheet and a backing sheet; b) forming a backing sheet tab; c) forming a cover sheet tab; and d) providing said carrier sheet with an associated holding portion.
  • Fig. 1 is a plan view of a first embodiment of a laminate in the form of a wound dressing embodying the present invention, prior to use of the dressing;
  • Fig. 2 is a cross-section of Fig. 1;
  • Fig. 3 is a cross-section of a second embodiment of a laminate in the form of a wound dressing embodying the present invention;
  • Fig. 4 is a cross-section of a third embodiment of a laminate in the form of a wound dressing embodying the present invention;
  • Fig. 5 is a cross-section of a fourth embodiment of a wound dressing embodying the present invention.
  • the laminate of the dressing 1 shown in Fig 1 comprises a carrier sheet 10 in the form of a transparent and permeable polyurethane film.
  • a front face of the film 10 (the lower face as viewed in Fig 2) is coated with an adhesive layer 12 which may be of any adhesive material suitable for medical or veterinary use; in this embodiment the material is a pressure-sensitive solvent-based acrylic compound.
  • the adhesive material of the layer 12 and the polyurethane carrier sheet 10 may comprise a bacteriostatic silver compound such as a soluble glass containing silver orthophosphate.
  • the layer 12 is covered by a cover sheet 14 which is a transparent polymer sheet held in place by the adhesive layer 12.
  • the right edge of the cover sheet 14 (as viewed in Fig 2) is provided on its outer edge with a holding portion 14a which is an extension of the laminate, releasably connected to the carrier sheet 10.
  • the cover sheet 14 is also provided with a pull tab 15 having a free-standing extension flap 15a.
  • the holding portion 14a extends along a substantially central portion of the edge of the dressing 1. The holding portion 14a may thus be held at the central portion of this edge to facilitate handling of the dressing 1 and removal of the cover sheet 14.
  • the holding portion 14a extends along the entire length of the edge of the dressing 1.
  • the pull tab 15 extends across the entire width of the dressing 1 adjacent to the holding portion 14a.
  • a rear face of the carrier sheet 10 (the upper face as viewed in Fig 2) is covered by a backing sheet 16 which adheres to the sheet 10 with an adhesiveness which is lower than that between the sheet 10 and the layer 12.
  • the relatively lower tack between the rear face of the carrier sheet 10 and the backing sheet 16 ensures that when the dressing is applied, with the cover sheet 14 removed, from the front face of the sheet 10, to a surface of a patient's body and the backing sheet 16 is pulled, the backing sheet 16 separates from the sheet 10 while the relatively higher tack of the adhesive in the layer 12 continues to hold the carrier sheet 10 on to the body tissue of the patient.
  • the backing sheet 16 is of a transparent polymer film, but other materials such as siliconised paper may alternatively be used for the backing sheet.
  • the laminate of the cover sheet 14, the carrier sheet 10 and the backing sheet 16 as described above is available in manufactured strip form from, for example, the Rexham division of Bowater pic.
  • the backing sheet tab 2 is an extension of the backing sheet 16 and extends from the backing sheet away from the carrier sheet 10. The backing sheet tab 2 extends substantially along one edge of the dressing 1 opposite the edge provided with the holding portion 14a.
  • a score line 20 is formed through the cover sheet 14 adjacent and parallel to the edge of the dressing 1 between the holding tab 14a and the pull tab 15 (avoiding the pull tab extension flap 15a) .
  • a line of perforations 21 is formed completely through the dressing 1 below the score line 20 from the same (lower) face of the dressing 1 as the score line 20 is formed. It is to be noted that the relative thicknesses of the various layers shown in the accompanying drawings are not necessarily to scale.
  • the dressing 1 is supplied sterile in a sealed pouch (not shown) .
  • the pouch is opened and the dressing 1 is removed from the pouch.
  • the dressing is grasped by the holding portion 14a, and bent around the score line 20, which raises an adjacent edge of the main portion of the cover sheet 14 under the tab 15.
  • the extension flap 15a is gripped by the user who can then peel the cover sheet 14 away from the adhesive layer 12 while holding the tab 14a on the opposite edge.
  • the dressing 1 is then applied over the wound or other application site and pressed into place on the body tissue around the wound.
  • the backing sheet 16 maintains the carrier sheet 10 in a dimensionally stable and readily handled condition, allowing the dressing to be secured to the body tissue around the wound or other application site without creasing or stretching of the carrier sheet 10.
  • the backing sheet tab 2 is gripped by the user and is used to peel the backing sheet 16 away from the carrier sheet 10.
  • the holding portion 14a is then removed from the film 10 by tearing along the perforations 21 after application of the main portion of the dressing 1 to the patient, the overlying edge of the carrier sheet 10 subsequently being smoothed down onto the body tissue of the patient.
  • the carrier sheet 10 conforms well to the underlying tissue surface because the dressing 1 is flexible in two directions, ie length and width.
  • the act of peeling the cover sheet 14 away from the carrier sheet 10 automatically takes the user's hands away from the face of the dressing 1 which will be applied to the patient's tissue, thus avoiding potentially contaminating contact to the wound.
  • this edge of the dressing 1 could be cut off with scissors after application of the main portion of the dressing 1 to the patient.
  • the dressing 1 may be readily manufactured. It is known to make film dressing material in bulk by laminating polyurethane film with adhesive and release layers. A dressing of the present invention can be made by removing a strip of the carrier sheet 10, adhesive layer 12 and cover sheet 14 along one edge of the dressing 1 to form the backing sheet tab 2, cutting the score line 20 and perforations 21 (for example using a rotary knife) and cutting the resulting strip across its width at suitable intervals to form individual dressings.
  • An example of a bulk film dressing material consists of a lamination of:-
  • PUf polyurethane film
  • PSA pressure sensitive adhesive
  • the PUf polyurethane film
  • a silver-releasing product for example, a bacteriostat.
  • a grid pattern may be printed onto the backing sheet 16 for monitoring wound size. After application of the carrier sheet 10 but prior to removal of the backing sheet 16, the outline of the wound can be traced onto the backing sheet. The area of the wound can subsequently be calculated from the outline on the grid, which is also suitable to be retained as a record as it is not contaminated by contact with the wound, having been spaced from the wound by the intervening polyurethane carrier sheet 10.
  • Instructions for use of the dressing can be printed on the tabs 2, 14a and 15, as can advertisements and/or other messages.
  • Islands of alginate or other absorbent materials can be pre-located in the centre of the dressing 1 as an aid to healing.
  • the embodiments shown in Fig 3 , Fig 4 and Fig 5 are generally similar to that shown in Fig 1 and Fig 2.
  • the layers of the laminate forming the dressing are shown separated although, in practice, adjacent layers are in contact.
  • the backing sheet tab 2 is extended by a distance x away from the carrier sheet 10 with respect to the previously described embodiment. Increasing the distance that the backing sheet tab 2 extends away from the carrier sheet 10 may permit the user to bend the tab 2 towards the body of the carrier sheet 10 before beginning to peel the backing sheet 16 from the carrier sheet 10. This may make the backing sheet 16 easier to peel away without lifting the carrier sheet 10 from the surface to which it has been applied.
  • the backing sheet tab 2 is formed from a tab member bend around, and secured to, an extension 16a of the backing sheet 16.
  • the tab 2 may be provided by a piece of tape, for example, a polypropylene tape which may be self adhesive for attachment to the backing sheet extension 16a.
  • the backing sheet tab 2 is attached to a surface of the backing sheet extension 16a by means of a layer of adhesive 3.
  • the tab 2 may be provided in the form of a tape, for example, of polypropylene.
  • the invention may be utilised as a transdermal medicament delivery system, for example as nicotine supply patches, or, as a non-medical application in the electronics industry.
  • a transdermal medicament delivery system for example as nicotine supply patches, or, as a non-medical application in the electronics industry.
  • - the dressing is easy to apply; - the dressing is protected against stretching during application; - the dressing is protected against creasing during application; - the dressing is not touched by the user during application, reducing problems of contamination; - the amount of waste material is reduced; - the dressing conforms well to uneven surfaces as it is flexible in two directions, ie length and width; - manufacture is simple and a wide range of sizes can readily be produced; for example, the depth of the score line once set provides accurately repeatable performance; - the whole of the dressing is transparent thus allowing the user to see exactly where it is being applied.

Abstract

On décrit une structure en couches appropriée à l'utilisation en tant que pansement pour blessure ou en tant que système d'apport transdermique d'un médicament. Cette structure en couches est composée d'une feuille support prise en sandwich entre une feuille protectrice amovible et une feuille dorsale amovible. Cette structure présente une patte de feuille protectrice ainsi qu'une patte de feuille dorsale, les deux pattes s'étendant hors de la feuille support. Cette structure comprend également une portion servant de prise, laquelle, ainsi que les deux pattes, facilite l'application de la feuille support, généralement en film polyuréthanne, sur une surface du corps d'un patient et évite l'étirement ou le plissement de la feuille support, laquelle comporte généralement un agent thérapeutique, tel qu'un bactériostatique, et peut être pourvue d'un îlot non adhésif afin de couvrir la blessure.
PCT/GB1996/000055 1995-01-14 1996-01-12 Structure en couches auto-adhesive WO1996021410A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP8521521A JPH10511881A (ja) 1995-01-14 1996-01-12 自己接着積層体
AU43532/96A AU4353296A (en) 1995-01-14 1996-01-12 Self-adhesive laminate
EP96900147A EP0802777A1 (fr) 1995-01-14 1996-01-12 Structure en couches auto-adhesive

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9500716.7 1995-01-14
GBGB9500716.7A GB9500716D0 (en) 1995-01-14 1995-01-14 Self adhesive laminate

Publications (1)

Publication Number Publication Date
WO1996021410A1 true WO1996021410A1 (fr) 1996-07-18

Family

ID=10768031

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1996/000055 WO1996021410A1 (fr) 1995-01-14 1996-01-12 Structure en couches auto-adhesive

Country Status (6)

Country Link
EP (1) EP0802777A1 (fr)
JP (1) JPH10511881A (fr)
AU (1) AU4353296A (fr)
CA (1) CA2210224A1 (fr)
GB (1) GB9500716D0 (fr)
WO (1) WO1996021410A1 (fr)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10056014A1 (de) * 2000-11-11 2002-05-16 Beiersdorf Ag Mehrschichtige Trägerkonstruktion für wirkstofhaltige Pflastersyteme
EP1459717A1 (fr) * 2003-03-20 2004-09-22 Lohmann & Rauscher GmbH & Co. KG Produit de traitment de plaies avec aide de détachement et procédé pour sa fabrication
EP1638469A2 (fr) * 2003-06-10 2006-03-29 Hawk Medical Technologies Ltd. Methode permettant de supprimer des pigments d'une partie de peau pigmentee
EP2612630A1 (fr) * 2010-08-31 2013-07-10 Nichiban Co. Ltd. Feuille adhésive, utilisation de celle-ci, et procédé d'adhérence de la feuille adhésive
US9005158B2 (en) 2005-08-01 2015-04-14 Hawk Medical Technologies Ltd. Eradication of pigmentation and scar tissue
US9061095B2 (en) 2010-04-27 2015-06-23 Smith & Nephew Plc Wound dressing and method of use
US9227000B2 (en) 2006-09-28 2016-01-05 Smith & Nephew, Inc. Portable wound therapy system
US9427505B2 (en) 2012-05-15 2016-08-30 Smith & Nephew Plc Negative pressure wound therapy apparatus
US9446178B2 (en) 2003-10-28 2016-09-20 Smith & Nephew Plc Wound cleansing apparatus in-situ
WO2016172683A1 (fr) * 2015-04-24 2016-10-27 Avery Dennison Corporation Pansements faciles à appliquer
US9662246B2 (en) 2012-08-01 2017-05-30 Smith & Nephew Plc Wound dressing and method of treatment
US9844473B2 (en) 2002-10-28 2017-12-19 Smith & Nephew Plc Apparatus for aspirating, irrigating and cleansing wounds
USD806242S1 (en) 2012-05-23 2017-12-26 Smith & Nephew Plc Flexible port used to connect a wound dressing to a source of negative pressure
US9877872B2 (en) 2011-07-14 2018-01-30 Smith & Nephew Plc Wound dressing and method of treatment
US9962474B2 (en) 2007-11-21 2018-05-08 Smith & Nephew Plc Vacuum assisted wound dressing
US10046096B2 (en) 2012-03-12 2018-08-14 Smith & Nephew Plc Reduced pressure apparatus and methods
US10076449B2 (en) 2012-08-01 2018-09-18 Smith & Nephew Plc Wound dressing and method of treatment
US10201644B2 (en) 2005-09-07 2019-02-12 Smith & Nephew, Inc. Self contained wound dressing with micropump
US10265445B2 (en) 2002-09-03 2019-04-23 Smith & Nephew, Inc. Reduced pressure treatment system
US10682446B2 (en) 2014-12-22 2020-06-16 Smith & Nephew Plc Dressing status detection for negative pressure wound therapy
US11517656B2 (en) 2006-05-11 2022-12-06 Smith & Nephew, Inc. Device and method for wound therapy
US11559437B2 (en) 2016-10-28 2023-01-24 Smith & Nephew Plc Multi-layered wound dressing and method of manufacture

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5384730B2 (ja) * 2010-08-31 2014-01-08 ニチバン株式会社 貼付体シート

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990001915A2 (fr) * 1988-08-31 1990-03-08 Britcair Limited Pansements adhesifs
EP0568401A1 (fr) * 1992-04-29 1993-11-03 Laboratoire Hydrex (SA) Pansement adhésif transparent
WO1994026514A1 (fr) * 1993-05-18 1994-11-24 Giltech Limited Structure en couches auto-adhesive
FR2711056A1 (fr) * 1993-10-15 1995-04-21 Hydrex Lab Sa Pansement adhésif absorbant.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990001915A2 (fr) * 1988-08-31 1990-03-08 Britcair Limited Pansements adhesifs
EP0568401A1 (fr) * 1992-04-29 1993-11-03 Laboratoire Hydrex (SA) Pansement adhésif transparent
WO1994026514A1 (fr) * 1993-05-18 1994-11-24 Giltech Limited Structure en couches auto-adhesive
FR2711056A1 (fr) * 1993-10-15 1995-04-21 Hydrex Lab Sa Pansement adhésif absorbant.

Cited By (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10056014A1 (de) * 2000-11-11 2002-05-16 Beiersdorf Ag Mehrschichtige Trägerkonstruktion für wirkstofhaltige Pflastersyteme
US11298454B2 (en) 2002-09-03 2022-04-12 Smith & Nephew, Inc. Reduced pressure treatment system
US10265445B2 (en) 2002-09-03 2019-04-23 Smith & Nephew, Inc. Reduced pressure treatment system
US11376356B2 (en) 2002-09-03 2022-07-05 Smith & Nephew, Inc. Reduced pressure treatment system
US10278869B2 (en) 2002-10-28 2019-05-07 Smith & Nephew Plc Apparatus for aspirating, irrigating and cleansing wounds
US10842678B2 (en) 2002-10-28 2020-11-24 Smith & Nephew Plc Apparatus for aspirating, irrigating and cleansing wounds
US9844473B2 (en) 2002-10-28 2017-12-19 Smith & Nephew Plc Apparatus for aspirating, irrigating and cleansing wounds
EP1459717A1 (fr) * 2003-03-20 2004-09-22 Lohmann & Rauscher GmbH & Co. KG Produit de traitment de plaies avec aide de détachement et procédé pour sa fabrication
EP1638469A2 (fr) * 2003-06-10 2006-03-29 Hawk Medical Technologies Ltd. Methode permettant de supprimer des pigments d'une partie de peau pigmentee
EP1638469A4 (fr) * 2003-06-10 2011-10-26 Hawk Medical Technologies Ltd Methode permettant de supprimer des pigments d'une partie de peau pigmentee
US9446178B2 (en) 2003-10-28 2016-09-20 Smith & Nephew Plc Wound cleansing apparatus in-situ
US9452248B2 (en) 2003-10-28 2016-09-27 Smith & Nephew Plc Wound cleansing apparatus in-situ
US9005158B2 (en) 2005-08-01 2015-04-14 Hawk Medical Technologies Ltd. Eradication of pigmentation and scar tissue
US11278658B2 (en) 2005-09-07 2022-03-22 Smith & Nephew, Inc. Self contained wound dressing with micropump
US11737925B2 (en) 2005-09-07 2023-08-29 Smith & Nephew, Inc. Self contained wound dressing with micropump
US10201644B2 (en) 2005-09-07 2019-02-12 Smith & Nephew, Inc. Self contained wound dressing with micropump
US11517656B2 (en) 2006-05-11 2022-12-06 Smith & Nephew, Inc. Device and method for wound therapy
US9642955B2 (en) 2006-09-28 2017-05-09 Smith & Nephew, Inc. Portable wound therapy system
US11141325B2 (en) 2006-09-28 2021-10-12 Smith & Nephew, Inc. Portable wound therapy system
US9227000B2 (en) 2006-09-28 2016-01-05 Smith & Nephew, Inc. Portable wound therapy system
US10130526B2 (en) 2006-09-28 2018-11-20 Smith & Nephew, Inc. Portable wound therapy system
US11045598B2 (en) 2007-11-21 2021-06-29 Smith & Nephew Plc Vacuum assisted wound dressing
US11701266B2 (en) 2007-11-21 2023-07-18 Smith & Nephew Plc Vacuum assisted wound dressing
US9962474B2 (en) 2007-11-21 2018-05-08 Smith & Nephew Plc Vacuum assisted wound dressing
US9808561B2 (en) 2010-04-27 2017-11-07 Smith & Nephew Plc Wound dressing and method of use
US11058587B2 (en) 2010-04-27 2021-07-13 Smith & Nephew Plc Wound dressing and method of use
US11090195B2 (en) 2010-04-27 2021-08-17 Smith & Nephew Plc Wound dressing and method of use
US9061095B2 (en) 2010-04-27 2015-06-23 Smith & Nephew Plc Wound dressing and method of use
US10159604B2 (en) 2010-04-27 2018-12-25 Smith & Nephew Plc Wound dressing and method of use
EP2612630A1 (fr) * 2010-08-31 2013-07-10 Nichiban Co. Ltd. Feuille adhésive, utilisation de celle-ci, et procédé d'adhérence de la feuille adhésive
EP2612630A4 (fr) * 2010-08-31 2014-08-13 Nichiban Kk Feuille adhésive, utilisation de celle-ci, et procédé d'adhérence de la feuille adhésive
US10231874B2 (en) 2010-11-08 2019-03-19 Smith & Nephew Plc Wound dressing and method of treatment
US9877872B2 (en) 2011-07-14 2018-01-30 Smith & Nephew Plc Wound dressing and method of treatment
USRE48535E1 (en) 2011-07-14 2021-04-27 Smith & Nephew Plc Wound dressing and method of treatment
US10130519B2 (en) 2011-07-14 2018-11-20 Smith & Nephew Plc Wound dressing and method of treatment
US11510819B2 (en) 2011-07-14 2022-11-29 Smith & Nephew Plc Wound dressing and method of treatment
US10039673B2 (en) 2011-07-14 2018-08-07 Smith & Nephew Plc Wound dressing and method of treatment
US11129931B2 (en) 2012-03-12 2021-09-28 Smith & Nephew Plc Reduced pressure apparatus and methods
US10660994B2 (en) 2012-03-12 2020-05-26 Smith & Nephew Plc Reduced pressure apparatus and methods
US11903798B2 (en) 2012-03-12 2024-02-20 Smith & Nephew Plc Reduced pressure apparatus and methods
US10046096B2 (en) 2012-03-12 2018-08-14 Smith & Nephew Plc Reduced pressure apparatus and methods
US9427505B2 (en) 2012-05-15 2016-08-30 Smith & Nephew Plc Negative pressure wound therapy apparatus
US9545465B2 (en) 2012-05-15 2017-01-17 Smith & Newphew Plc Negative pressure wound therapy apparatus
US10702418B2 (en) 2012-05-15 2020-07-07 Smith & Nephew Plc Negative pressure wound therapy apparatus
US10299964B2 (en) 2012-05-15 2019-05-28 Smith & Nephew Plc Negative pressure wound therapy apparatus
US9907703B2 (en) 2012-05-23 2018-03-06 Smith & Nephew Plc Apparatuses and methods for negative pressure wound therapy
USD806256S1 (en) 2012-05-23 2017-12-26 Smith & Nephew Plc Medical dressing
USD806243S1 (en) 2012-05-23 2017-12-26 Smith & Nephew Plc Flexible port used to connect a wound dressing to a source of negative pressure
US11590029B2 (en) 2012-05-23 2023-02-28 Smith & Nephew Plc Apparatuses and methods for negative pressure wound therapy
USD806242S1 (en) 2012-05-23 2017-12-26 Smith & Nephew Plc Flexible port used to connect a wound dressing to a source of negative pressure
USD866756S1 (en) 2012-05-23 2019-11-12 Smith & Nephew Plc Flexible port used to connect a wound dressing to a source of negative pressure
US10507141B2 (en) 2012-05-23 2019-12-17 Smith & Nephew Plc Apparatuses and methods for negative pressure wound therapy
USD820990S1 (en) 2012-05-23 2018-06-19 Smith & Nephew Plc Medical dressing
US11864981B2 (en) 2012-08-01 2024-01-09 Smith & Nephew Plc Wound dressing and method of treatment
US9662246B2 (en) 2012-08-01 2017-05-30 Smith & Nephew Plc Wound dressing and method of treatment
US10667955B2 (en) 2012-08-01 2020-06-02 Smith & Nephew Plc Wound dressing and method of treatment
US11801338B2 (en) 2012-08-01 2023-10-31 Smith & Nephew Plc Wound dressing and method of treatment
USD914887S1 (en) 2012-08-01 2021-03-30 Smith & Nephew Plc Wound dressing
US10076449B2 (en) 2012-08-01 2018-09-18 Smith & Nephew Plc Wound dressing and method of treatment
US11654228B2 (en) 2014-12-22 2023-05-23 Smith & Nephew Plc Status indication for negative pressure wound therapy
US10737002B2 (en) 2014-12-22 2020-08-11 Smith & Nephew Plc Pressure sampling systems and methods for negative pressure wound therapy
US10682446B2 (en) 2014-12-22 2020-06-16 Smith & Nephew Plc Dressing status detection for negative pressure wound therapy
US10973965B2 (en) 2014-12-22 2021-04-13 Smith & Nephew Plc Systems and methods of calibrating operating parameters of negative pressure wound therapy apparatuses
US10780202B2 (en) 2014-12-22 2020-09-22 Smith & Nephew Plc Noise reduction for negative pressure wound therapy apparatuses
WO2016172683A1 (fr) * 2015-04-24 2016-10-27 Avery Dennison Corporation Pansements faciles à appliquer
US11559437B2 (en) 2016-10-28 2023-01-24 Smith & Nephew Plc Multi-layered wound dressing and method of manufacture

Also Published As

Publication number Publication date
CA2210224A1 (fr) 1996-07-18
JPH10511881A (ja) 1998-11-17
EP0802777A1 (fr) 1997-10-29
AU4353296A (en) 1996-07-31
GB9500716D0 (en) 1995-03-08

Similar Documents

Publication Publication Date Title
EP0699127B1 (fr) Structure en couches auto-adhesive
EP0802777A1 (fr) Structure en couches auto-adhesive
JP5080384B2 (ja) 包装された医療用接着複合物
US5489262A (en) Transparent hydrogel wound dressing with release tab
AU616535B2 (en) Adhesive sheet
US5000172A (en) Dressing system with reference marks
US4600001A (en) Combined wound dressing and delivery means composite
US5709651A (en) Adhesive dressing
US6350339B1 (en) Non-stretching wound dressing and method for making same
US5035687A (en) Adhesive dressings
EP0120570B1 (fr) Pansement pour plaie
EP0630629B1 (fr) Pansement en hydrogel
US6884920B2 (en) Hydrocolloid window catheter dressing and a method for making and using the same
EP0434258A2 (fr) Système de bandage adhésif et sa méthode d'application
JPH01280458A (ja) １段法ドレッシング送出システム
JP2831394B2 (ja) 接着性ドレッシング、その製法と用途
GB2131299A (en) Adhesive film dressing
AU1391197A (en) Wound dressing
GB2128479A (en) Application of surgical dressings
WO1990001915A2 (fr) Pansements adhesifs
US20050075595A1 (en) Adhesive dressings
CA1222671A (fr) Pansements
EP0675702B1 (fr) Pansement adhesif
GB2316618A (en) Device for dispensing pieces of adhesive strip
JPH0687873B2 (ja) 粘着性フィルムドレッシング

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU IS JP KE KG KP KR KZ LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG US UZ VN AZ BY KZ RU TJ TM

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
ENP Entry into the national phase

Ref document number: 2210224

Country of ref document: CA

Ref country code: CA

Ref document number: 2210224

Kind code of ref document: A

Format of ref document f/p: F

ENP Entry into the national phase

Ref country code: US

Ref document number: 1997 860895

Date of ref document: 19970714

Kind code of ref document: A

Format of ref document f/p: F

WWE Wipo information: entry into national phase

Ref document number: 1996900147

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1996900147

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWR Wipo information: refused in national office

Ref document number: 1996900147

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1996900147

Country of ref document: EP