公开(公告)号：US20220135750A1

公开(公告)日：2022-05-05

申请号：US17429045

申请日：2020-01-31

申请人： CHITOGEL LIMITED

发明人： Simon Rae Robinson ,  Smita Ghosh

IPC分类号： C08J3/075 ,  A61L26/00 ,  A61L31/04 ,  A61L31/14

摘要： Disclosed are surgical hydrogels derived from the combination of chitosan derivative and aldehyde-derivatised dextran polymers in combination with a humectant for use as surgical wound packing materials or stents. Also disclosed are sterile kits comprising the precursor components of the surgical hydrogels. Also disclosed are methods of sterilizing the kits and individual components thereof for preparing the hydrogels.

公开(公告)号：US20240299621A1

公开(公告)日：2024-09-12

申请号：US18423852

申请日：2024-01-26

申请人： Chitogel Limited

发明人： Peter-John WORMALD ,  Stephen Carl MORATTI ,  Lyall Robert HANTON ,  Simon ROBINSON ,  Alistair JUKES

IPC分类号： A61L27/20 ,  A61L27/36

CPC分类号： A61L27/20 ,  A61L27/3641

摘要： A haemostat agent in the form of a multi-layer patch comprising at least first and second layers, wherein said first layer comprises a composition comprising fibrous β-chitin (which may be sourced from a marine source such as squid pens) and one or more biocompatible polymer (for example, a polyethylene glycol (PEG) polymer or sodium polyphosphate (PolyP)), and said second layer comprises a film layer comprising fibrous β-chitin. In one particular application, the haemostat agent is used for treating carotid artery injury associated with endonasal surgery.