EP0914074A1 - Bandage qui ne glisse pas - Google Patents

Bandage qui ne glisse pas

Info

Publication number
EP0914074A1
EP0914074A1 EP97930671A EP97930671A EP0914074A1 EP 0914074 A1 EP0914074 A1 EP 0914074A1 EP 97930671 A EP97930671 A EP 97930671A EP 97930671 A EP97930671 A EP 97930671A EP 0914074 A1 EP0914074 A1 EP 0914074A1
Authority
EP
European Patent Office
Prior art keywords
bandage
fabric
rubber
slip
stretchable
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.)
Withdrawn
Application number
EP97930671A
Other languages
German (de)
English (en)
Inventor
Mark Julian Bernhard
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.)
Recorde Ltd
Original Assignee
Recorde Ltd
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
Priority claimed from GBGB9613785.6A external-priority patent/GB9613785D0/en
Application filed by Recorde Ltd filed Critical Recorde Ltd
Publication of EP0914074A1 publication Critical patent/EP0914074A1/fr
Withdrawn legal-status Critical Current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

Definitions

  • the present invention relates to a novel bandage or wrap and to a novel textile material useful as a bandage or wrap.
  • One known type of bandage is an adhesiveless elastic tube. Such a tubular bandage provides limited .support and the compressive force cannot be varied. Tubular bandages are therefore of limited benefit and are not normally used, for example, by sportsmen and women.
  • a more effective bandage is an elasticated adhesive bandage.
  • Such a bandage comprises an elongate strip of longitudinally semi-stretchable fabric, one major surface of which is adhesively coated.
  • the fabric contains no elastomer or rubber.
  • the bandage can be wrapped around a limb section as desired, in particular the compression applied and the arrangement of the bandage can be selected by the person applying the bandage, who is often a physiotherapist.
  • An adhesive elasticated bandage therefore overcomes some of the disadvantages of a tubular bandage. Nevertheless, adhesive elasticated bandages suffer disadvantages:
  • French Patent No. 2 609 889 discloses a bandage having undulating lines of an anti-slip material adhered to one surface thereof.
  • French Patent No. 2 609 889 fails to address the problem of providing a bandage having anti-slip characteristics relative to eg. human skin, that does not rely on adherence of the bandage material to the skin.
  • W095/ 12370 discloses a bandage having regions of .anti-slip material applied to at least one surface, and preferably both surfaces, of a bandage fabric.
  • the stated aim of the invention of W095/ 12370 is to provide a non-slip layer that prevents slipping of overlapping bandage layers.
  • the non-slip materials are applied in patterns that facilitate this effect.
  • the invention provides a bandage which enables the disadvantages of prior art bandages which have been appreciated by the inventor to be overcome or reduced.
  • the bandage is resiliently stretchable and a non-adhesive surface thereof resists slipping when the bandage is wrapped around a limb under tension.
  • a bandage of the invention may be applied to a limb by placing a first end of the b.andage on the limb with its slip-resistant surface facing the skin.
  • the bandage is then wound around the limb under tension, the first end of the bandage being held in place by an at least partially overlying bandage layer.
  • the second end of the bandage may conveniently be secured to an underlying bandage layer, suitably by means of an adhesive strip or, more preferably, by means of a tab secured to the bandage and attachable to the underlying .surface by means of barbs removably engageable with material of the underlying layer. Suitable removably engageable barb/material combinations are available under the registered trade mark Nelcro. Other b.arb/material fasteners may alternatively be used.
  • the elasticity (resiliency) of the bandage wrapped around the limb under tension causes the bandage to exert a compressive force on the limb.
  • the applied bandage is subject to contractile forces but it does not slip against the skin, at least not to a significant extent, but because it is not stuck to the skin by adhesive, can be painlessly removed for repositioning or re-use.
  • the compressive force applied by the bandage can be chosen by applying chosen tension to the bandage as it is being wrapped around the limb; similarly the arrangement of the bandage on the limb can be chosen as desired.
  • the bandage may in principle comprise .any resiliently stretchable material.
  • a fabric is preferred for comfort, such as a knitted fabric.
  • the bandage is normally stretchable only in the longitudinal direction, since significant transverse stretchability detracts from the stability and support which the bandage can provide.
  • the bandage normally is capable of a measured maximum extension of at least 50% of its relaxed length (ie. is capable of extending by at least 50% of its relaxed length) and often of at least 80%, and more desirably of 100% or more, eg. about 120%.
  • maximum extension is discussed later in this specification.
  • the elastic modulus of a bandage may be expressed as the weight with which the bandage is required to be loaded to extend by 40% of the additional length of the bandage when extended from its rest state to substantially its maximum extended length. This is a standard test in the UK.
  • a bandage of the invention has an elastic modulus of from 400 to 1300g and more usually of from 700 to HOOg. Preferably the modulus is between 800 and lOOOg .and most preferably about 900g.
  • the bandage preferably comprises a fabric, for example a knitted fabric.
  • Elasticity is suitably provided by incorporating in the knitted fabric longitudrnal resilient strands, normally made of an elastomer.
  • a conventional fabric alone would not resist contraction of an extended (stressed) bandage wrapped around a limb. Such resistance may be provided by applying a slip-resistant material to one of the major surfaces of the bandage.
  • the application of slip-resistant material to both sides of the bandage fabric, as proposed in WO95/ 12370, would reduce the usefulness of the device as a bandage.
  • the applied slip-resistant material is elastic; in any event, the anti-slip surface of the fabric is capable of broadly elastic behaviour.
  • suitable slip-resistant materials mere may be mentioned materials having rubber-like properties, especially silicones.
  • the invention includes bandages having the slip resistant material arranged in spots or patches but the slip resistant material is preferably formed as one or more generally longitudinally extending lines. There are preferably a plurality of such longitudinal lines of slip resistant material, suitably separated by a distance of between 5 .and 15mm and more preferably of between 8 and 12mm, eg. about 10 or 11mm. Most preferably the longitudinal lines of slip-resistant materi.al are not straight but undulating, so that any notional straight line extending along the length of the bandage would intersect at least one line of the slip resistant material .
  • This construction advantageously accommodates flexing of the slip-resistant material during elongation of the bandage, and also confers a desirable "power" characteristic in the sense that the forces resulting from extension of the bandage are evenly distributed, and increase at a desirable rate, across the range of extension.
  • the invention provides a bandage which comprises elongate fabric, resiliently stretchable in the longitudinal direction but substantially unstretchable in the transverse direction and having a rubber or rubber-like material applied to a major surface of the fabric.
  • the rubber or rubber-like material is preferably a silicone.
  • the fabric is preferably a crotchet knitted fabric having longitudinally oriented resiliently stretchable strands, eg. elastomeric strands, laid between the warp threads of the fabric.
  • the bandage is preferably provided at one end with a removable and re- attachable fastener to fasten the end of the bandage to an underlying bandage layer when the bandage is wrapped around a limb.
  • the invention includes the use of a skin-compatible, non-adhesive slip resistant material to provide a bandage resiliently stretchable in the longitudinal direction with a slip-resistant surface, the bandage preferably being stretchable exclusively in the longitudinal direction .and the slip- resistant material preferably being a silicone or other rubber.
  • a slip- resistant material is skin-compatible if it does not cause irritation or d ⁇ unage to the skin or pain in performing its function.
  • the invention also provides a novel fabric, useful as a wrap or support.
  • the fabric is a resiliently stretchable fabric having applied to a .surface thereof a rubber or rubber-like material in a discontinuous arrangement.
  • the fabric is unidirectionally stretchable and the rubber or rubber-like material is arranged in one or more continuous lines oriented generally in the stretchable direction.
  • the fabric is preferably elongate in the stretchable direction.
  • the rubber or rubber-like material is a silicone.
  • the fabric is desirably a .knitted fabric, especially a crotchet-knitted fabric; such fabric normally contains resiliently stretchable strands, usually of elastomer, arranged in the stretchable direction.
  • the knitted fabric may be made of polyester.
  • the novel fabric desirably has a maximum extension and an elastic modulus as described above in relation to the bandage.
  • the fabric of the invention may be bandage material, that is material to be cut to length and optionally to have a fastener added, in order to form a bandage.
  • the fabric is generally useful as a wrap.
  • the invention includes the use of the fabric to form a bandage.
  • Figure 1 is .an exemplary illustration of a bandage of toe invention
  • Figure 2 is a graph showing the forces generated during extension of a bandage according to the invention
  • Figure 3 shows in perspective view, a variant on the Figure 1 embodiment
  • Figure 4 is a side elevational view of the Figure 3 embodiment.
  • Figure 1 illustrates an end portion of a resiliently stretchable bandage or wrap 1, a surface 2 of which resists slipping when the bandage 1 is wrapped around a limb under tension.
  • the illustrated bandage therefore has applied thereto a slip-resistant material 3.
  • the surface 2 forms the inside surface of the bandage when wrapped around a limb and is conveniently referred to as the inside surface.
  • the illustrated bandage 1 is stretchable only in the longitodinal direction, ie. it resists significant transverse stretching.
  • a transversely stretchable bandage would be unlikely to provide commercially-acceptable support but would provide some support, for which reason such less preferred bandages are not excluded from the invention.
  • the physical properties of the bandage are not critical, so long as, in the case of a limb support, it can function to provide support to a limb when wrapped therearound.
  • certain values of elastic modulus and maximum extension to be desirable, as well as the anti-slip property of a particular anti-slip coating. More particularly, the characteristics represented by a combination of such preferred values and property are especially desirable.
  • the bandage normally has a maximum extension of at least 50% of its relaxed length, preferably of at least 80% and more desirably of 100% or more. Usually the maximum extension is not more than 200% and is more usually not more th.an 150% . Most desirably the m.aximum extension is between 110 and 130%, eg. about 120% .
  • maximum extension is meant the extra length of a substantially fully stretched bandage as a percentage of the length of a fully relaxed bandage.
  • the term "elastic modulus” refers to the force required to be applied to a bandage to extend it by 40% of the extra length of the bandage when extended from a relaxed to a fully stretched state.
  • the force is conveniently expressed as the mass which would have to be hung from the bandage to apply that force.
  • the elastic modulus is generally at least 400g; normally it is no more than 1300g. More preferred minimum and maximum modulus values are 700 and HOOg, particularly preferred maximum and minimum values being 800 and lOOOg.
  • the slip-resistance preferably corresponds to that provided by a silicone.
  • preferred bandages have a silicone on at least one major surface thereof and normally only one surface thereof.
  • Room temperature vulcanising (RTN) silicone is preferred, since the uncured silicone may be applied cold to the fabric surface and allowed to cure at ambient temperature.
  • RTN Room temperature vulcanising
  • the invention therefore includes a support bandage having a silicone on a surface thereof.
  • an alternative anti-slip material may be used.
  • the invention also includes a method of making a fabric product or bandage, comprising applying a room temperature vulcanising silicone to a surface of a resiliently stretchable fabric.
  • the bandage therefore has a discontinuous coating of slip-resistant material 3.
  • the invention includes bandages having the slip-resistant material 3 arranged in spots or patches but we prefer it be arranged in one or, preferably, a plurality of, lines oriented generally in a longitudinal sense.
  • the lines are continuous and extend .substantially the length of the bandage.
  • the lines are preferably undulating. If there are three or more transversely spaced lines they are preferably at substantially equidistant mean spacing; the mean distance between each lateralmost line from the adjacent side edge of the fabric is preferably substantially the same as the mean spacing between the lines.
  • the bandage preferably comprises a fabric, and more usually a knitted fabric, especially a crotchet knitted fabric.
  • the yarn of the fabric is polyester yarn.
  • Resiliency is suitably provided by longitudinal elastic (resilient) strands, preferably elastomer strands; these strands are suitably laid between the warp threads of a knitted fabric.
  • a preferred class of bandages comprise a fabric of crotchet knitted polyester, especially textured polyester, containing elastomer strands laid between the w.arp threads, one surface of the fabric having a plurality of continuous, generally longitodinal and preferably undulating lines of silicone.
  • Preferred and most preferred characteristics of such bandages are approximately as shown in the following Table:
  • Warp content (wt% of fabric) 20-25% 23%
  • Silicone RTV 118 a one-part, moisture-curing, translucent, self-levelling, acetoxy silicone from G E Silicones.
  • the bandages of said class have values for all the characteristics of the Table which are preferred or most preferred, (eg. a combination of preferred values for some characteristics and most preferred for others), but one or more characteristics may fall outside the preferred value range, especially the width.
  • the bandage 1 has at one end a fastener 4 for fastening the end of the b.andage to an underlying layer of the bandage when it is wrapped around a limb.
  • the fastener 4 is shown to comprise a tab, usually of fabric, extending from the end of the body of the bandage and fastenable to such an underlying bandage layer by entrapment of a plurality of minute barbs 5 on one of the tab 4 and the outside surface of the bandage in a fibrous mat on the other thereof; such "barb fasteners" are commercially available under the trade mark Velcro ® . Similar fasteners sold under other names may equally readily be used.
  • the fastening material or device e.g.
  • barbs or fibrous mat need not be provided on a tab but alternatively may be provided on the body of the bandage 1. If a barb fastener is used, then the part complementary to the barbs or mat on the tab 5 or inside surface 2 of the bandage is suitably provided on the outside surface of the bandage, e.g. in a region between 4.25 inches and 6.75 inches (11 and 17 cm) from the bandage end (i.e. the end of the bandage at which the inside-facing barbs or matting are/is located) in the case of an ankle support. For example, a plurality of .spaced mats may be attached to the outside surface of an ankle support bandage over such a region.
  • the fabric forming part of the inventive bandage may be manufactured in a variety of sizes, its has been found desirable for the thickness of the crocheted or knitted fabric to be no greater than 1mm in its unstretched state. This ensures that on stretching by eg. 50% the fabric thickness decreases to approximately 0.8mm. When stretched by 100%, the fabric thickness typically is 0.65mm. This ensures that the bandage of the mvention does not signific.antly increase the thickness of a limb around which it is wrapped, even in cases where there .are several layers of the bandage wrapped around the limb.
  • the fabric does not significantly change its thickness on stretching, thereby rendering it p.articul.arly suitable as a bandage since there it does not significantly limit a user's ability to wear clothing over the bandage.
  • Figure 2 is a graph showing the force generated in the fabric of the bandage of the invention in N (y-axis) against percentage extension of the fabric sample (x-axis). (Details of the fabric sample tested appear in Table 2.) As is evident from Figure 2, the fabric exhibits progressive increases in the force generated, over the entire range of extension tested (i.e. from zero extension to a maximum in the test shown of approximately 105% using a 6.25 kg test load). This means that the compressive force applied by the bandage may be finely adjusted, regardless of the extent to which the bandage has already been extended.
  • Another weight of the rubber strands that may be suitable for use in the fabric of the bandage of the invention is "65s", ie. strands of a thickness such that 65 of them lain side by side have a width of 25.4mm (1 inch).
  • Figure 3 there is shown an alternative means of attaching the barbed portion of the barb fastener referred to hereinabove.
  • the b.arbs 5 are secured to and extend inwardly from a fabric portion 11 that is in turn secured to or integral with the fabric of the bandage.
  • This construction may be achieved through forming or attachment of the barbs 5 on approximately half of one surface of a strip of fabric, the barb free part 12 of which is secured to the bandage fabric in the manner of a lap joint.
  • the lap joint may be secured eg. by stitching, radio frequency (or other) welding or through use of adhesive materials acting between fabric 1 and portion 12.
  • any tensile forces experienced by the fabric to which the barbs are secured are generally coplanar with the bandage fabric. This eliminates almost entirely the tendency that would otherwise occur for the free end of the fabric strip 11 supporting the b ⁇ trbs 5 to lift when placed in tension (eg. by virtue of compressive wrapping of the bandage of the invention about a limb). Such lifting is strongly undesirable since it tends to cause peeling of the b ⁇ irbs 5 from the fibrous mat secured to the bandage, with the result that the fastener may become undone or may protrude from the bandage, causing discomfort.
  • the positioning of the barbs and fibrous mat creates a bond that has powerful shear characteristics combined with ⁇ -inimal lift characteristics and eliminates to a great extent the lift characteristics normally to be experienced by the hook and loop fasteners.
  • the fibrous matting of the hook/loop fastener may be applied to the outer surface of the portion lb of bandage fabric 1 in p.arallel bands 13a, 13b, 13c, thereby giving a range of securing positions of the barb fastener, by means of which the compressive force applied by the bandage of the invention may be adjusted.
  • the bandage it is not essential that the bandage have an integral fastener.
  • the free end of a bandage wrapped around a limb could be secured to an underlying bandage layer by a length of adhesive tape; if necessary fresh adhesive tape could be used when the bandage was re-arranged or re-used.
  • the illustrated bandage is very supportive, comfortable to wear, easy to use and re-usable as well as unlikely to restrict blood flow.
  • the invention includes not only a bandage or wrap as described above but also a resiliently stretchable or elastic fabric having applied thereto a rubber or rubber-like material in a discontinuous arrangement. Preferred features of the fabric are described above in relation to the bandage.

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)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

Dans le domaine des bandages, on sait appliquer un revêtement qui ne glisse pas à la surface d'un bandage. Cependant, les bandages existants présentent un certain nombre de désavantages. L'invention concerne un bandage (1) pourvu d'un revêtement (3) qui peut être étiré de manière élastique et qui ne glisse pas, et qui est appliqué de façon à former des lignes ondulées s'étendant dans le sens de la longueur du bandage. Grâce à ce revêtement, le bandage (1) ne glisse pas par rapport à la peau humaine, sur laquelle il peut être appliqué de manière compressive. Une caractéristique intéressante de l'invention est l'utilisation d'un dispositif de fixation (5, 13) comportant des crochets de type barbe dont la résistance au cisaillement agit dans un plan qui coïncide approximativement avec celui de la surface externe du bandage (1), ce qui diminue la tendance de ce dernier à se détacher en raison des forces liées à son application compressive sur, par exemple, un membre humain.
EP97930671A 1996-07-12 1997-07-10 Bandage qui ne glisse pas Withdrawn EP0914074A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GBGB9613785.6A GB9613785D0 (en) 1996-07-12 1996-07-12 Textile product useful as bandage
GB9613785 1996-07-12
US2981696P 1996-10-25 1996-10-25
US29816 1996-10-25
PCT/GB1997/001861 WO1998002120A1 (fr) 1996-07-12 1997-07-10 Bandage qui ne glisse pas

Publications (1)

Publication Number Publication Date
EP0914074A1 true EP0914074A1 (fr) 1999-05-12

Family

ID=26309609

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97930671A Withdrawn EP0914074A1 (fr) 1996-07-12 1997-07-10 Bandage qui ne glisse pas

Country Status (5)

Country Link
EP (1) EP0914074A1 (fr)
AU (1) AU740464B2 (fr)
CA (1) CA2260236C (fr)
NZ (1) NZ333665A (fr)
WO (1) WO1998002120A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6601172B1 (en) * 1997-12-31 2003-07-29 Philips Electronics North America Corp. Transmitting revisions with digital signatures
AU2001290955A1 (en) * 2000-10-24 2002-05-21 Velcro Industries B.V. Wound covering
EP1338260A1 (fr) * 2002-02-21 2003-08-27 Saupe AG Bande de contention
FR2930708B1 (fr) * 2008-04-30 2011-08-26 Ganzoni France Bande auto-fixante de maintien et de contention notamment pour bas de contention
FR2960147B1 (fr) 2010-05-20 2012-07-06 Michel Rebuffet Complexe de traitement pour zone anatomique du corps humain notamment orthese
SE541767C2 (en) * 2017-12-05 2019-12-10 Novortex Ab Support bandage and a method for its production

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3330275A (en) * 1963-04-17 1967-07-11 Paulis Silk Company Cohesive fabric
US3842832A (en) * 1972-10-06 1974-10-22 Poly Wide Inc Disposable laminate product and method of making it
US4207885A (en) * 1979-03-07 1980-06-17 Carolon Company Woven elastic compression bandage
DE3529563A1 (de) * 1985-08-17 1987-02-19 Walter Dr Med Bachmann Elastische selbsthaftende kompressionsbandage
DE3677983D1 (de) * 1986-09-05 1991-04-11 Braun Karl Otto Kg Verwendung einer klebemasse fuer einen kohaesiven verbandstoff.
FR2609889B1 (fr) 1987-01-26 1992-01-10 Thuasne & Cie Procede d'enduction d'un produit textile en bande
DE3902434A1 (de) * 1989-01-27 1990-08-02 Uhl Sportartikel Karl Stuetzbandagen fuer gliedmassen und/oder gelenke
US5133199A (en) * 1990-12-10 1992-07-28 The Kendall Company Conformable stretch bandage
CA2092581C (fr) * 1992-12-22 2003-10-14 Judith K. Faass Materiau composite compressible, elastique, non-tisse et autocollant
WO1995012370A1 (fr) 1993-11-04 1995-05-11 Smith & Nephew Plc Bandages

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9802120A1 *

Also Published As

Publication number Publication date
AU740464B2 (en) 2001-11-01
AU3454797A (en) 1998-02-09
NZ333665A (en) 2000-01-28
WO1998002120A1 (fr) 1998-01-22
CA2260236A1 (fr) 1998-01-22
CA2260236C (fr) 2004-04-06

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