GB749739A - Improvements in or relating to surgical dressings - Google Patents

Improvements in or relating to surgical dressings

Info

Publication number
GB749739A
GB749739A GB840254A GB840254A GB749739A GB 749739 A GB749739 A GB 749739A GB 840254 A GB840254 A GB 840254A GB 840254 A GB840254 A GB 840254A GB 749739 A GB749739 A GB 749739A
Authority
GB
United Kingdom
Prior art keywords
copolymer
per cent
acid
water
mol
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.)
Expired
Application number
GB840254A
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.)
NORMAN MARTIN WIEDERHORN
Noxet UK Ltd
Original Assignee
NORMAN MARTIN WIEDERHORN
Noxet UK 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 to US749739XA priority Critical
Priority to US761840XA priority
Application filed by NORMAN MARTIN WIEDERHORN, Noxet UK Ltd filed Critical NORMAN MARTIN WIEDERHORN
Publication of GB749739A publication Critical patent/GB749739A/en
Application status is Expired legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
    • A61L26/00Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form
    • A61L26/0061Use of materials characterised by their function or physical properties
    • A61L26/0076Sprayable compositions
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/22Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/24Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
    • A61L26/00Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form
    • A61L26/0009Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form containing macromolecular materials
    • A61L26/0014Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form containing macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F20/00Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F20/62Monocarboxylic acids having ten or more carbon atoms; Derivatives thereof

Abstract

A thin, tough, water-insoluble, water vapour-permeable sheet suitable for use as a surgical dressing is made from a copolymer of at least one member of the group consisting of acrylic acid, methacrylic acid and acrylamide with at least one member of the group consisting of esters of acrylic or methacrylic acid with alcohols containing 2 to 12 carbon atoms, such as ethyl, n-butyl, n-hexyl, octyl, 2-ethylhexyl and lauryl alcohols, the total acid or amide component constituting 70 to 35 mol. per cent of the copolymer, the total ester component constituting 30 to 65 mol. per cent of the copolymer, and any methacrylic components not constituting more than 40 mol. per cent. The copolymers may be prepared by the following methods (1) by copolymerizing the monomers in solution in methanol in the presence of benzoyl peroxide as a catalyst, and optionally in the presence of a chain terminating agent such as a mercaptan or aldehyde, the copolymer solution produced may be purified by precipitation with a petroleum fraction followed by solution in methanol or ethanol and reprecipitation with water; (2) by partial esterification of polymerized acid; and (3) by partial saponification of an ester polymer.ALSO:A surgical dressing comprising a thin tough sheet is made from a copolymer of at least one member of the group consisting of acrylic acid, methacrylic acid, and acrylamide, with at least one member of the group consisting of esters of acrylic or methacrylic acid with alcohols containing 2 to 12 carbon atoms, the total acid or amide component constituting 70 to 35 mol per cent of the copolymer, the total ester component constituting 30 to 65 mol per cent of the copolymer, and any methacrylic components not constituting more than 40 mol per cent, the sheet being water-vapour permeable but insoluble in water, so that adhered directly to skin areas surrounding a wound it can be washed with adjacent areas of the skin without undue risk of deterioration, and will protect the wound from contamination but yet allow passage of air and water vapour to and from the area which it covers. The dressings are applied by the treatment of the skin with a solvent for the copolymer. The dressings may be used in combination with antiseptic and bactericidal agents, for example a thin deposit of silver may be applied to the surface of the sheet which is in contact with the wound.
GB840254A 1953-03-24 1954-03-23 Improvements in or relating to surgical dressings Expired GB749739A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US749739XA true 1953-03-24 1953-03-24
US761840XA true 1953-11-30 1953-11-30

Publications (1)

Publication Number Publication Date
GB749739A true GB749739A (en) 1956-05-30

Family

ID=31980794

Family Applications (2)

Application Number Title Priority Date Filing Date
GB840254A Expired GB749739A (en) 1953-03-24 1954-03-23 Improvements in or relating to surgical dressings
GB3447354A Expired GB761840A (en) 1953-03-24 1954-11-29 Improvements in or relating to surgical dressings

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB3447354A Expired GB761840A (en) 1953-03-24 1954-11-29 Improvements in or relating to surgical dressings

Country Status (1)

Country Link
GB (2) GB749739A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE31887E (en) * 1968-07-09 1985-05-14 T. J. Smith & Nephew Limited Moisture-vapor-permeable pressure-sensitive adhesive materials
GB2190387A (en) * 1986-05-15 1987-11-18 Yarsley Technical Centre Limit Hydrophilic copolymers for wound dressings and other biomedical uses
GB2199501A (en) * 1987-01-06 1988-07-13 Ian Ferguson Martin Wound dressings

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983003549A1 (en) * 1982-04-08 1983-10-27 Smith And Nephew Associated Companies P.L.C. Surgical adhesive dressing
AU562370B2 (en) * 1982-10-02 1987-06-11 Smith & Nephew Associated Companies Plc Moisture vapour permeable adhesive surgical dressing
GB8309993D0 (en) * 1983-04-13 1983-05-18 Smith & Nephew Ass Surgical adhesive dressing
GB8334484D0 (en) * 1983-12-24 1984-02-01 Smith & Nephew Ass Surgical dressing

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE31887E (en) * 1968-07-09 1985-05-14 T. J. Smith & Nephew Limited Moisture-vapor-permeable pressure-sensitive adhesive materials
USRE31886E (en) * 1968-07-09 1985-05-14 T. J. Smith & Nephew Limited Moisture-vapor-permeable pressure-sensitive adhesive materials
GB2190387A (en) * 1986-05-15 1987-11-18 Yarsley Technical Centre Limit Hydrophilic copolymers for wound dressings and other biomedical uses
GB2190387B (en) * 1986-05-15 1990-09-19 Fulmer Yarsley Ltd Hydrophilic copolymers for wound dressings and other biomedical uses
GB2199501A (en) * 1987-01-06 1988-07-13 Ian Ferguson Martin Wound dressings

Also Published As

Publication number Publication date
GB761840A (en) 1956-11-21

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