| 摘要 |
One embodiment is a lead introducer including an outer needle, an inner needle, a splittable member, and an annular seal member. The outer needle, inner needle, and splittable member each include a body and hub. The splittable member fits over the outer needle body and the inner needle body and can be separated longitudinally. The splittable member hub receives at least portions of both the inner needle hub and the outer needle hub within the splittable member hub. The annular seal member is formed by either a) the inner needle hub or b) a combination of the inner needle hub and outer needle hub. The annular seal member forms a fluid-resisting seal with the interior surface of the splittable member hub when the portions of the inner needle hub and outer needle hub are received within the splittable member hub. |
