申请人:——
公开号:US20030100666A1
公开(公告)日:2003-05-29
The invention related to a hydrogel forming aqueous composition of water soluble polymers having a sufficiently high coherency that it substantially not is dispersed when being injected into an aqueous environment of a body site such as the capsular bag of the eye to undergo a photoinitiated crosslinking reaction. The water soluble polymers either can be a water-soluble polymer bearing free acrylic, or other vinylic groups capable of facile free radical reaction with a polymeric water-soluble photoinitiator also present in the composition, or a water-soluble polymer bearing both free acrylic, or other vinylic groups capable of facile free radical reaction and photoinitiator, wherein both polymers are capable of being crosslinked when irradiated with light of wavelengths greater than about 305 nm to form the hydrogel.
本发明涉及一种由水溶性聚合物组成的水凝胶水性组合物,这种水凝胶水性组合物具有足够高的相干性,当注射到人体部位(如眼球囊袋)的水环境中进行光引发交联反应时,基本上不会分散。水溶性聚合物可以是含有游离丙烯酸基团或其他乙烯基团的水溶性聚合物,能够与组合物中的聚合物水溶性光引发剂发生自由基反应;也可以是同时含有游离丙烯酸基团或其他乙烯基团的水溶性聚合物,能够与光引发剂发生自由基反应,其中两种聚合物在波长大于约 305 纳米的光照射下能够发生交联,形成水凝胶。