| 摘要 |
A catheter tip that provides longitudinal flexibility, pushability and radial rigidity thereby improving deliverability is provided. The catheter tip (20) includes a spring-like element (30) to provide longitudinal flexibility and pushability to the catheter tip. The spring-like element may also provide radial support to the distal edge of the catheter tip. Alternatively, a radially rigid distal end (40) may also be included distal of the spring-like element. The apparatus may be used with any interventional catheter system, but is particularly suitable for use with balloon - expandable stent systems and balloon - angioplasty systems, where flexibility of the catheter tip and minimal flaring of the distal edge of the catheter tip is desirable.
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