Patent · US Expired

Wound dressing

US7220889B2 · kind B2 · utility

156Cited by
98References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 3, 2003
Grant dateMay 22, 2007
Priority date
Expiry dateJan 16, 2025

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61F2013/00885
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

A wound dressing including an absorbent core defining opposed proximal and distal surfaces. A perforated skin adherent facing layer is secured to a proximal surface of the absorbent core and a liquid impervious, vapor permeable backing layer is connected to a distal surface of the absorbent core. The backing layer defines at least one compliant element disassociated from the distal surface of the absorbent core and including at least one ridge extending outwardly relative to the distal surface of the absorbent core.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.