large enough to accept the lead with or without a cannula with little difficulty also the clamping force applied by arms 603 and 604 against tool 609 allows lead securing member 602 to be moved and manipulated into place by using tool 609 see fig7 additionally when inserted within lead securing member 602 the distal end of tool 609 maintains spring loaded lever structures 607 and 608 in a u201c closed u201d position that is lever structures 607 and 608 are spring loaded to automatically open and contact an inner shoulder of annular structure 601 when the distal end of tool 609 is removed the expansion or opening of lever structures 607 and 608 causes securing member 602 to be secured within annular structure 601 fig7 depicts an expanded view of tool 609 inserted within securing member 602 as shown a surgeon can grasp tool 609 to pick up and move securing member 602 for placement within annular structure 601 with relative ease once lead securing member 602 is positioned around the lead and within the annular structure the surgeon need only remove tool 609 from lead securing member 602 to secure the lead and lock member 602 into place against annular structure 601 specifically as the distal end of tool 609 is removed arms 603 and 604 clamp around the lead or the cannula due to the application of force exerted by spring loaded lever structures 605 and 606 also as tool 609 is removed spring load lever structures 607 and 608 expand to contact annular structure 601 fig8 depicts another.