| 摘要 |
<p>An improved catheter assembly (10) comprises an insert molded catheter hub (12) and catheter (14). The catheter has an axial bore (18) and a flared tip portion (16) about its proximal end. The catheter hub has a lumen (20) extending therethrough with the flexible catheter fixedly positioned within the lumen. In order to accomplish this, the catheter hub has a chamber (22) integrally formed therein about the flared tip of the catheter, which tightly grips and seals the catheter but allows the flow of fluid through the lumen of the catheter hub and the axial bore of the catheter. The invention further comprises a method of manufacturing the catheter. The method comprises the steps of cutting a section of catheter tubing, flaring one end against a heated die. The catheter is then mounted on a core pin, and inserted into an injection mold. The mold is closed and heated plastic material is injected in the cavity and about the flared end of the catheter. After cooling, the catheter assembly is removed from the mold, and then from the core pin.</p> |
