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US 11,564,673 B2Granted
Delivery systems for control of gastrointestinal bleeding
AssigneesTricol Biomedical, Inc., Oregon Health & Science University
InventorsKenneth E. Perry, Kenneth P. Perry, Hua Xie, Brintha Enestvedt, Simon J. McCarthy
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Abstract
The present disclosure relates to a gastrointestinal delivery device of a dressing, where the delivery device is capable of fitting through a narrow channel before expanding and applying the dressing. The gastrointestinal delivery device may be used in all gastrointestinal bleeding applications and can be used with a biocompatible, foldable, thin profile, chitosan dressing. Various aspects of the device and its uses are provided herein.
Claims28
A gastrointestinal delivery device comprising:
- an expandable support;
- and
- a releasable dressing;
- wherein the device is capable of fitting through a channel of 4 mm diameter or less when the expandable support is in an unexpanded format, wherein the releasable dressing comprises a catechol modified chitosan, wherein the dressing is tissue adhesive, hemostatic, and has a thickness that is 500 microns or less, and wherein the dressing is at least one of (i) resistant to substantial swelling in presence of biological fluid or (ii) porous.
1 more element
Dependencies are inferred from the claim text.