US 2026/0256979 A1 · WOUND DRESSING COMPRISING A PH SENSOR COMPOSITION AND METHOD OF PRODUCING THE SAME

Abstract

A wound dressing comprising a porous structure, itself comprising a pH sensor composition, which is arranged on top of an adhesive film structure. The wound dressing changes colour according to pH variations at the wound site, allowing to promote the wound healing process, as well as providing proper information to health care professionals by monitoring the healing process of skin lesions, thus leading to a better care of the patient as well as the use of a more sustainable treatment. Also, disclosing a method to obtain the wound dressing.

Claims13

Dependent claims

A wound dressing comprising a porous structure arranged on an adhesive film structure, wherein:

the porous structure comprises alginate in a concentration between 1% and 2% (w/v), a pH sensor composition in a concentration between 0.5% and 1% (w/v);
and
the adhesive film structure comprises chitosan in a concentration between 0.5 and 1% (w/v), hyaluronic acid in a concentration between 1 and 2% (w/v), a thickening agent in a concentration between 0.05 and 0.20% (w/v), and a preservation agent between 0.05 and 0.10% (w/v).

Dependencies are inferred from the claim text.

Facts

Application

18/869,625Filed 30 May 2023

Priority

PT 11802731 May 2022

Published

3 Sep 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification19 codes

A61L 15/425
Use of materials characterised by their function or physical properties: porous materials, e.g. foams or sponges
A61B 5/14539
Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g.…: for…
A61B 5/445
Skin evaluation, e.g. for skin disorder diagnosis: evaluating skin irritation or skin trauma, e.g. rash, eczema, wound, bed sore
A61B 5/6833
Using adhesives: adhesive patches

Wound dressing comprising a ph sensor composition and method of producing the same

Life of this patent

Wound dressing comprising a ph sensor composition and method of producing the same

Life of this patent

Abstract

Claims13