| 摘要 |
A tube and stylet assembly (12) for the controlled deflection of the tube is shown. The stylet (16) is received in the lumen (28) of the tube (14). The stylet includes a first filament (42) having proximal and distal ends and a second filament (44) having proximal and distal ends wherein the proximal an d distal ends of the second filament are joined to the first filament such tha t a surface of the second filament abuts a surface of the first filament. Deflection of the first and second filaments along a plane substantially perpendicular to the abutting surfaces of the first and second filaments necessarily results in a corresponding, opposite deflection of the first and second filaments a spaced distance from the first deflection point. Therefor e, a user can control deflection of one portion of the tube and stylet through manipulation of a second portion of the tube and stylet. This structure is particularly useful in inserting a gastric tube either nasally or orally.</S DOAB>
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