This invention relates to pouch or pledget delivery system having an apertured film or fabric covering which assists in evenly and safely distributing topical medicaments....http://www.google.es/patents/US6156323?utm_source=gb-gplus-sharePatente US6156323 - Tricot-like pouch for the delivery of topical drugs and cosmetics
Tricot-like pouch for the delivery of topical drugs and cosmetics