| 摘要 |
A catheter has an outer tube capable of turning an inner tube smoothly. The catheter comprises an inner tube 11 having a leading end portion formed into a suitable shape matching an affected part 18, an outer tube 12 fitted movably on the inner tube 11 and a joint mechanism for enabling the inner tube 11 to move integrally with the outer tube 12 without preventing the movement of the outer tube 12.
|
