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1. WO2020072089 - STERILIZATION OF MEDICAL DRESSINGS WITH ENHANCED ANTIMICROBIAL PROPERTIES

Publication Number WO/2020/072089
Publication Date 09.04.2020
International Application No. PCT/US2019/000051
International Filing Date 07.10.2019
IPC
A61L 2/20 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS 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
2Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
16using chemical substances
20Gaseous substances, e.g. vapours
B28B 11/12 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
28WORKING CEMENT, CLAY, OR STONE
BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
11Apparatus or processes for treating or working the shaped articles
12for removing parts of the articles by cutting
CPC
A61L 2/20
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS 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
2Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
16using chemical substances
20Gaseous substances, e.g. vapours
Applicants
  • HYDROFERA, LLC [US]/[US]
Inventors
Agents
  • HALE, John, S.
Priority Data
62/741,83905.10.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) STERILIZATION OF MEDICAL DRESSINGS WITH ENHANCED ANTIMICROBIAL PROPERTIES
(FR) STÉRILISATION DE PANSEMENTS MÉDICAUX AUX PROPRIÉTÉS ANTIMICROBIENNES AMÉLIORÉES
Abstract
(EN)
The present invention relates to a sponge dressing for treating wounds comprised of a polymer sponge containing a plurality of antimicrobial dyes with at least one dye being gram positive and at least one other dye being gram negative and a silicon adhesive secured to a sponge surface. The sponge dressing can be exposed initially to gamma radiation and later sterilized by ethylene oxide or alternatively it can be sterilized by ethylene oxide and later irradiated by gamma radiation. The sponge dressing has a morphology characterized by an average pore throat diameter of 0.5 - 500 pm and a porosity ranging from about 60% to about 99.5%. The sponge dressing can also contain at least one biofilm reducing agent, at least one chelating agent and an ionic and non- ionic surfactant.
(FR)
La présente invention concerne un pansement éponge utilisé pour le traitement de plaies comprenant une éponge polymère contenant une pluralité de colorants antimicrobiens, dont au moins un colorant gram positif et au moins un colorant gram négatif, et un adhésif au silicium fixé à une surface d'éponge. Le pansement éponge peut être initialement exposé à un rayonnement gamma avant d'être stérilisé à l'oxyde d'éthylène ou, à l'inverse, stérilisé à l'oxyde d'éthylène avant d'être exposé à un rayonnement gamma. La morphologie du pansement éponge est caractérisée par un diamètre moyen de gorge de pore compris entre 0,5 et 500 pm et une porosité allant d'environ 60 % à environ 99,5 %. Le pansement éponge peut également contenir au moins un agent de réduction de biofilm, au moins un agent chélatant et un tensioactif ionique et non ionique.
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