The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 28, 2026
Filed:
Dec. 13, 2019
Paul Hartmann Ag, Heidenheim, DE;
Fabien Merckel, Straßbourg, FR;
Renaud Thiebaut, Chatenois, FR;
PAUL HARTMANN AG, Heidenheim, DE;
Abstract
Wound dressing () comprising a backing layer (), an absorbent pad () and a wound contact layer (), wherein the backing layer () comprises a water vapour-permeable and substantially liquid-impermeable film material, wherein the absorbent pad () comprises an absorbent core () having a proximal side and a distal side, and an envelope () surrounding the absorbent core (), the absorbent core () comprising an absorbent material, and wherein the wound contact layer () comprises a layer of a skin-friendly silicone adhesive (), characterized in that the envelope () comprises a first layer () of a first liquid-permeable material and a second layer () of a second material different from the first material, wherein the first layer () of the envelope () covers the proximal side of the absorbent core () and wherein the second layer () of the envelope () covers the distal side of the absorbent core (), and wherein the first layer () of the envelope () extends over the proximal side of the absorbent core () and the second layer () of the envelope () extends over the distal side of the absorbent core () each of them forming a border area () surrounding the absorbent core (), the first () and second layer () of the envelope () being joined to each other along the border area () surrounding the absorbent core ().