Underfilling of pre-molded components

During assembly of a medical electrical lead, the tubular lead component is slid over the outer surface of the lead body to a desired location on the lead. The ends of the tubular lead body are sealed and a space is defined between the inner surface of the tubular lead component and the outer surface of the lead body. Medical adhesive is injected through the port(s) to substantially fill the space between the tubular component and the lead body. The adhesive is then cured. Any ports extending away from the sleeve are removed after the curing step.