| 摘要 |
The device is shaped like a stent and has a lumen wall-contacting surface (12) and a lumen-exposed surface (13). The stent may have a loop (14) for retrieving and/or fixing it in place. After insertion by catheter into a lumen (L) , the collapsed mesh tube is expanded by balloon to remain in the lumen (L). The stent includes cells that produce and release a therapeutic agent to a host in need. The stent can include cells capable of eluting therapeutic agents in response to changing physiological conditions within a host. |
