| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide improvement in compositions and methods for performing an endoscopic polypectomy procedures, as well as instruments suitable for introducing a polymeric materials into the body. <P>SOLUTION: A multi-lumen cannula 10 comprises: a proximal end 30 and a distal end 20; at least one lumen 14 configured to permit the passage of a coolant; and at least one additional lumen 12 configured to permit the passage of a composition comprising a thermally responsive polymer, wherein the thermally responsive polymer is in a low-viscosity state at a pre-treatment temperature and a high-viscosity state at a treatment temperature higher than the pre-treatment temperature. <P>COPYRIGHT: (C)2009,JPO&INPIT |
