| 摘要 |
<p>The present invention relates to a catheter having a length-adjustable tubing, which is used for examination and treatment in human blood vessels, dental cavity, and lachrymal duct. In the invention, the displacement angle of the tubing for the catheter, which is made of flexible materials, can be adjusted as necessary. If a fine adjustment is needed, the displacement angle can be made small. Otherwise, the angle can be made large. Therefore, the field and range of the application of the tubing can be expanded.</p> |
