| 摘要 |
<p>A catheter having wall support to prevent occlusion or kinking, particularly due to constriction by a medical adaptor retained at the proximal end thereof. The catheter can be formed from a soft material such as polyurethane so as to minimize traumatic effect to the body. A coil spring element is incorporated about the passageway of the catheter at the proximal end. The length of the coil spring is preferably matched to the length of the catheter subject to constriction by the adaptor, thereby preserving good visibility of fluid through the catheter while providing anti-occlusion support where most needed. If desired, the major length of the catheter can be provided with a structuring or profiling treatment so as to provide anti-kinking resistance along the length of the catheter while retaining the benefits of a soft material.</p> |
