| 摘要 |
<p>An improved durable and flexible catheter (11) or central lumen having good resiliency characteristics and a low kink radius. The catheter or central lumen is an elongated member having an inner layer (22) of a soft elastomeric material and an outer layer (21) of a hard plastic material and is formed by forming the outer layer onto the inner layer by coextrusion.</p> |
