Hydrogel for ostomy appliances
AssigneeHollister Incorporated
InventorsSohaila Abdelhamid, Mallory Brodnik, Riley Forst, Stephanie Nofz, Lingfeng Tang, Luke Teasley, Mustafa Guler, Terry Johnson, Adrian Defante, Abram Janis
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Abstract
An ostomy skin barrier is formed from a double network hydrogel (DN hydrogel) comprising at least two different polymer networks, such as a polyacrylamide network, a sodium alginate network, and chitosan network. The DN hydrogel can also include a pH biosensor configured to change color when exposed to stoma dejecta to indicate a leakage.
Claims19
An ostomy skin barrier formed from a double network hydrogel (DN hydrogel) comprising at least two different polymer networks.
The ostomy skin barrier of claim wherein the pH biosensor is a universal pH indicator configured to change color along a range of pH from about 1 to about 14, wherein the universal pH indicator is formed from a mixture of Methyl Red, Phenolphthalein, Ethanol, Bromothymol Blue, and NaOH.
Dependencies are inferred from the claim text.