A lead introducer comprising: an outer needle comprising an outer-needle body having a proximal end portion, a distal end portion, and a longitudinal length, a sharpened distal tip disposed along the distal end portion of the outer-needle body, and an open channel extending along the entire longitudinal length of the outer-needle body; an inner needle configured and arranged for sliding along the open channel of the outer needle, the inner needle comprising an inner-needle body having a proximal end portion, a distal end portion, and a longitudinal length, a blunt distal tip disposed along the distal end portion of the inner-needle body, and an inner-needle proximal hub attached to the proximal end portion of the inner-needle body; a biasing element coupled to the inner-needle body and comprising a coiled spring, the biasing element configured and arranged to facilitate a transition of the distal tip of the inner needle between a distally-biased position, where the distal tip of the inner needle obstructs the sharpened distal tip of the outer needle, and a retracted position, where the distal tip of the inner needle at least partially exposes the distal tip of the outer needle; and a splittable member having at least one perforated region extending along a longitudinal length of the splittable member, the splittable member configured and arranged for disposing over the outer-needle body and the inner-needle body when the inner-needle body is disposed in the open channel of the outer-needle body and for separating from the outer-needle body and the inner-needle body by separating along the at least one perforated region. an outer needle comprising an outer-needle body having a proximal end portion, a distal end portion, and a longitudinal length, a sharpened distal tip disposed along the distal end portion of the outer-needle body, and an open channel extending along the entire longitudinal length of the outer-needle body; an inner needle configured and arranged for sliding along the open channel of the outer needle, the inner needle comprising an inner-needle body having a proximal end portion, a distal end portion, and a longitudinal length, a blunt distal tip disposed along the distal end portion of the inner-needle body, and an inner-needle proximal hub attached to the proximal end portion of the inner-needle body; a biasing element coupled to the inner-needle body and comprising a coiled spring, the biasing element configured and arranged to facilitate a transition of the distal tip of the inner needle between a distally-biased position, where the distal tip of the inner needle obstructs the sharpened distal tip of the outer needle, and a retracted position, where the distal tip of the inner needle at least partially exposes the distal tip of the outer needle; and a splittable member having at least one perforated region extending along a longitudinal length of the splittable member, the splittable member configured and arranged for disposing over the outer-needle body and the inner-needle body when the inner-needle body is disposed in the open channel of the outer-needle body and for separating from the outer-needle body and the inner-needle body by separating along the at least one perforated region.