US 7,610,105 B2 · Methods of using a guide wire stylet

Abstract

Methods facilitate inserting a cardiac lead into a patient's vasculature. A cardiac lead system includes a cardiac lead having a lumen, and a guide member displaceable within the lumen. The guide member includes a guide wire extension that extends distal to the elongated body of the guide member. The guide wire extension is dimensioned to pass through an external distal opening of the cardiac lead lumen. Engagement of stop features or a stop mechanism of the cardiac lead system provides a push point for advancing the cardiac lead system through the patient's anatomy.

Claims20

Dependent claims

A method for advancing a cardiac lead system into a destination vessel, comprising:

providing a cardiac lead having a lumen extending from a proximal end of the lead to a distal external opening at a distal end of the lead, an electrode defining an exterior surface of the lead, and an electrical conductor;
providing a guide member displaceable within the cardiac lead lumen;
moving the guide member within the lumen of the cardiac lead so that a distal portion of the guide member extends beyond the distal external opening in the cardiac lead lumen;
engaging a first stop feature of the cardiac lead with a second stop feature of the guide member to provide a push point;
and
advancing the distal external opening and the electrode of the cardiac lead into a destination vessel using force applied to the push point.

3 more elements

A method for advancing a cardiac lead system into a destination vessel, comprising:

providing a cardiac lead having a lumen extending from a proximal end of the lead to a distal external opening at a distal end of the lead, an electrode defining an exterior surface of the lead, and an electrical conductor;
providing a guide member displaceable within the cardiac lead lumen;
moving the guide member within the cardiac lead lumen so that a distal portion of the guide member extends beyond the distal external opening in the cardiac lead lumen;
activating a stop mechanism, activation of the stop mechanism preventing further advancement of the guide member through the cardiac lead lumen;
and
moving the distal external opening and the electrode of the cardiac lead and the distal portion of the guide member together in a destination vessel while the stop mechanism is activated.

3 more elements

Dependencies are inferred from the claim text.

Methods of using a guide wire stylet

Life of this patent

Methods of using a guide wire stylet

Life of this patent

Abstract

Claims20