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WO1997034553A1 - Pansement - Google Patents

Pansement Download PDF

Info

Publication number
WO1997034553A1
WO1997034553A1 PCT/GB1997/000784 GB9700784W WO9734553A1 WO 1997034553 A1 WO1997034553 A1 WO 1997034553A1 GB 9700784 W GB9700784 W GB 9700784W WO 9734553 A1 WO9734553 A1 WO 9734553A1
Authority
WO
WIPO (PCT)
Prior art keywords
bandage
skin
layers
filaments
bandages
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/GB1997/000784
Other languages
English (en)
Inventor
Mitchell James Notaras
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1997034553A1 publication Critical patent/WO1997034553A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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 bandages or dressings
    • A61F13/0273—Adhesive bandages for winding around limb, trunk or head, e.g. cohesive
    • 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
    • A61F2013/00119—Wound bandages elastic
    • 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
    • A61F2013/00489—Plasters use for bracing or strapping
    • 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
    • A61F2013/00544—Plasters form or structure
    • A61F2013/00548—Plasters form or structure net

Definitions

  • the invention relates to a new application of a non-woven integral elasticised sheet net material as a bandage.
  • Surgical dressings and plasters have been developed for the following purposes: 1. The protection of the healing wound. 2. The prevention of contamination of the environment with wound exudate which may contain bacteria.
  • Skin is normally infested with bacteria which present no problem to the host, provided that normal environment of the skin is maintained and the openings of the hair follicles and the ducts of the sweat glands are not occluded.
  • the epidermis is permeable to water vapour and gases. In injuries where the epidermis is removed, the loss per unit area may increase tenfold.
  • the surface temperature of the skin is less than body temperature. Occlusion of the surface of the skin not only prevents the evaporation of water vapour and a rise of surface temperature, but causes a quantitative increase in the bacterial flora.
  • Bacteriological studies have shown that under a microporous water vapour-permeable dressing, the quantitative bacterial count is less than under occlusive dressings, and the incidence of recovery of pathogenic organisms is greatly reduced.
  • woven bandages can be stretched along their length but do not stretch sideways. These products are most commonly used to retain dressings in position or in the treatment of sprains to restrict movement, to limit oedema in dependent parts and to hold large dressings in position. They are commonly known as supporting bandages.
  • the use of adhesive may cause considerable stresses and strains to develop at the adhesive/epidermal interface within the epidermis and at the epidermal/dermal junction, which may result in disruption of the tissues. Sweat glands and hair follicles may become occluded by the adhesive, and the evaporation of water vapour may be prevented.
  • Microporous tape made from a non-woven fibre with ' acrylic adhesives. Acrylic adhesive can be used repeatedly without causing trauma to the outer skin layers. There is permeability to liquid or water vapour only if applied as a single layer. However with overlapping, these advantages are lost.
  • An example is Micropore tape marketed by 3M. This type of tape does not stretch and cannot be used for compression.
  • a bandage is made of an elastomeric net-like sheet material which by virtue of an increased friction coefficient does not slip when overlapped, with multi-layering. It may have means whereby it can interlock with itself, as it is overlapped on itself when wound around a part. This is achieved by increasing the thickness and altering the shape at the cross-over points. When layered on itself, the cross-over points will lock into the pores of the net/mesh.
  • the self-locking bandage is of a different design to (d) .
  • the novel bandage is an integral elastopolymer mesh/net and, where the filaments intersect with each other (the junctures) , the intersections are thickened in various shapes by increasing the volume of the polymer, preferably but not necessarily at each junction or intersection in three dimensions, so that there is a marked nubbing of the intersections as a "knob” or "blob” or "hook” .
  • the elasticised bandage of the invention is stretched and applied (e.g. to a limb) , in multilayering or overlapping on itself the projections at the junctions of any one layer of the bandage interlock with both the adjacent inner and outer layers.
  • the interlocking action combined with the high co-efficient of friction of the elastic polymer net material prevents the bandage from slipping and it thus maintains its conformity and pressure as required.
  • the juncture points or "high spots" may be 5-10 times the thickness of the filaments and may be round, elliptical or squarish or any shape according to its method of manufacture, whether extrusion or moulding.
  • the pores of the netting may be square, rectangular, round or any shape depending on the technique of manufacture.
  • the elastomer net may stretch in any direction with stretching ratios of from 3/1 to 10/1.
  • the holes in the net are of such a size that the skin is never completely occluded. Because it is a net-like material with large holes it allows perspiration and with cooling of the skin prevents overheating at the surface.
  • the mesh dimension is substantially larger than the filaments, so that the fabric has a high open area.
  • the mesh size may be 0.5 to 10, e.g. 1.5 to 5, mm, while the filament size may be 0.1 to 2.5 mm, for example 0.2 to 1.5 mm.
  • This high ratio e.g. of 1:1 to 25:1, means that, when layers of a strip of material according to the invention are superimposed after the strip is wrapped around a body part, the body is not occluded. This may assist healing, and permits washing.
  • protuberances allow superimposed layers to interlock.
  • the protuberances may be provided on one or both faces of the material. If provided on one face only, the other face will usually be the body-contacting face.
  • the protuberances will most conveniently be provided at the intersections of the filaments of the material, as has previously been proposed in order to provide increased strength at the intersections, although they may also be present elsewhere on the filaments. These protuberances do not need to be accurately proportioned to fit into the pores of the fabric.
  • the accompanying drawing shows a highly schematic partial plan view of material for use in the invention and also a schematic sectional view of the material when wrapped around on itself, e.g. over a wound (not shown) .
  • This view may be considered as an expanded section, or in a state prior to tightening, when the layers are brought into closer contact.
  • the protuberances are staggered in superimposed layers, so that they interlock with the open mesh in one or both adjacent layers.
  • Another application of the elastomer netting as described comprises introducing a "filler" in the openings, e.g. an absorbent, air-permeable material. Such a material need not limit the elasticity or compromise the interlocking of the intersecting "knobs".
  • the openings of the net material may be filled with a cotton or synthetic wool type material, or paper material in a thin layer in such a way as to allow the expansile or stretching nature of the intersecting filaments.
  • the elastic net bandage is able to incorporate a material for absorbency but remains compliant enough to allow the projecting junctions to enter the holes.

Landscapes

  • Health & Medical Sciences (AREA)
  • 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)
  • Materials For Medical Uses (AREA)

Abstract

Bande allongée en matériau polymère élastomère entièrement réticulé, dont la dimension des mailles est sensiblement plus grande que celle des filaments et dont la surface possède des protubérances. Cette bande est appropriée pour une utilisation thérapeutique en tant que pansement qu'on enroule autour d'une partie corporelle, de telle sorte que ses couches sont superposées et se bloquent réciproquement sans provoquer d'occlusion du corps.
PCT/GB1997/000784 1996-03-20 1997-03-20 Pansement Ceased WO1997034553A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9605863.1 1996-03-20
GBGB9605863.1A GB9605863D0 (en) 1996-03-20 1996-03-20 Bandage

Publications (1)

Publication Number Publication Date
WO1997034553A1 true WO1997034553A1 (fr) 1997-09-25

Family

ID=10790725

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1997/000784 Ceased WO1997034553A1 (fr) 1996-03-20 1997-03-20 Pansement

Country Status (2)

Country Link
GB (1) GB9605863D0 (fr)
WO (1) WO1997034553A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005070361A1 (fr) * 2004-01-14 2005-08-04 Apex Mills Corporation Bandage de protection de croute

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB794397A (en) * 1956-07-11 1958-04-30 Kimberly Clark Co Improvements in and relating to absorbent dressings
US4235237A (en) * 1978-05-08 1980-11-25 Johnson & Johnson Absorbent open network structure
US4921704A (en) * 1986-03-10 1990-05-01 Molnlycke Ab Wound dressing
WO1995012373A1 (fr) * 1993-11-03 1995-05-11 Smith & Nephew Plc Rembourrage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB794397A (en) * 1956-07-11 1958-04-30 Kimberly Clark Co Improvements in and relating to absorbent dressings
US4235237A (en) * 1978-05-08 1980-11-25 Johnson & Johnson Absorbent open network structure
US4921704A (en) * 1986-03-10 1990-05-01 Molnlycke Ab Wound dressing
WO1995012373A1 (fr) * 1993-11-03 1995-05-11 Smith & Nephew Plc Rembourrage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005070361A1 (fr) * 2004-01-14 2005-08-04 Apex Mills Corporation Bandage de protection de croute
US7176343B2 (en) 2004-01-14 2007-02-13 Ed Schlussel Scab protecting bandage

Also Published As

Publication number Publication date
GB9605863D0 (en) 1996-05-22

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