发明名称 |
AMPHOTERIC HYDROGEL FOR MEDICAL DEVICES |
摘要 |
A polymeric, amphoteric hydrogel for use in medical devices and medical devices using the hydrogel. The hydrogel has a first polymer repeating unit having an acid group and a second polymer repeating unit having a base group such that the acid groups and base groups are present in the hydrogel in amounts effective to provide a hydrogel with a strong, amphoteric, nonmobile ionic structure. For example, the hydrogel can be a copolymer of 2-acrylamido-2-methylpropane sulfonic acid and methacrylamido-propyl-trimethylammonium hydroxide. The hydrogel can be an adhesive used to adhere medical devices to the skin of a patient. It can be particularly useful in drug delivery applications such as in iontophoresis devices. |
申请公布号 |
WO9115250(A1) |
申请公布日期 |
1991.10.17 |
申请号 |
WO1991US02156 |
申请日期 |
1991.03.29 |
申请人 |
MEDTRONIC, INC. |
发明人 |
JEVNE, ALLAN, H.;HOLMBLAD, CAROLANN;PHIPPS, JOSEPH, B.;HOWLAND, WARREN, W. |
分类号 |
A61K9/00;A61K9/70;A61K47/32;A61L15/60;A61N1/30;C08L33/02;C09J133/26 |
主分类号 |
A61K9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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