发明授权
- 专利标题: Multiple stimulus reversible hydrogels
- 专利标题(中): 多次刺激可逆水凝胶
-
申请号: US09603730申请日: 2000-06-23
-
公开(公告)号: US06660247B1公开(公告)日: 2003-12-09
- 发明人: Anna Gutowska , Karol J. Krzyminski
- 申请人: Anna Gutowska , Karol J. Krzyminski
- 主分类号: A61K4900
- IPC分类号: A61K4900
摘要:
A polymeric solution capable of gelling upon exposure to a critical minimum value of a plurality of environmental stimuli is disclosed. The polymeric solution may be an aqueous solution utilized in vivo and capable of having the gelation reversed if at least one of the stimuli fall below, or outside the range of, the critical minimum value. The aqueous polymeric solution can be used either in industrial or pharmaceutical environments. In the medical environment, the aqueous polymeric solution is provided with either a chemical or radioisotopic therapeutic agent for delivery to a specific body part. The primary advantage of the process is that exposure to one environmental stimuli alone will not cause gelation, thereby enabling the therapeutic agent to be conducted through the body for relatively long distances without gelation occurring.