| 摘要 |
FIELD: general surgery. SUBSTANCE: medical facilities, in particular, dilators, catheter components or cannulas, plugs, and forceps, consist of ionically cross- linked polymer compositions and can be degraded in vivo at desired time point using inciting chemical means capable of removing cross-linking ion in cross-linked polymer by binding it or by replacing it for ion devoid of cross-linking ability. EFFECT: facilitated post-operation treatment. 21 cl, 3 dwg, 22 ex |
