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公开(公告)号：US12090246B2
公开(公告)日：2024-09-17
申请号：US17064390
申请日：2020-10-06
IPC分类号： A61L24/10 , A61K31/137 , A61L15/32 , A61L24/00 , A61L31/04
CPC分类号： A61L24/104 , A61K31/137 , A61L24/001 , A61L24/0015 , A61L24/0031 , A61L2300/104 , A61L2300/404 , A61L2300/418 , A61L2400/04
摘要： The present invention provides an improved tissue adhesive to repair defects in soft tissue. Following ASTM standard tests, crosslinked methacryloyl-substituted gelatin hydrogels of the present invention (GelSEAL) were shown to exhibit adhesive properties, i.e. wound closure strength, shear resistance and burst pressure, that were superior to clinically used fibrin- and poly(ethylene glycol)-based glues. Chronic in vivo experiments in rats proved GelSEAL to effectively seal large lung leakages without additional sutures or staples, presenting improved performance as compared to fibrin and poly(ethylene glycol) glues. Furthermore, subcutaneous implantation in rats revealed high biocompatibility of GelSEAL as evidenced by low inflammatory host response. Advantageously, the tissue adhesives of the present invention are low cost and easy to produce, making them a promising substance to be used as a sealant for fluid leakages in soft tissue, as well as an easily tunable platform to further optimize the adhesive characteristics.
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公开(公告)号：US10814032B2
公开(公告)日：2020-10-27
申请号：US15502347
申请日：2015-08-06
IPC分类号： A61L24/10 , A61L24/00 , A61K31/137
摘要： The present invention provides an improved tissue adhesive to repair defects in soft tissue. Following ASTM standard tests, crosslinked methacryloyl-substituted gelatin hydrogels of the present invention (GelSEAL) were shown to exhibit adhesive properties, i.e. wound closure strength, shear resistance and burst pressure, that were superior to clinically used fibrin- and poly(ethylene glycol)-based glues. Chronic in vivo experiments in rats proved GelSEAL to effectively seal large lung leakages without additional sutures or staples, presenting improved performance as compared to fibrin and poly(ethylene glycol) glues. Furthermore, subcutaneous implantation in rats revealed high biocompatibility of GelSEAL as evidenced by low inflammatory host response. Advantageously, the tissue adhesives of the present invention are low cost and easy to produce, making them a promising substance to be used as a sealant for fluid leakages in soft tissue, as well as an easily tunable platform to further optimize the adhesive characteristics.
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