Lead extraction system and methods thereof
First Claim
Patent Images
1. A lead extraction system comprising:
- a catheter sheath having a distal tip section, a distal end, a proximal end, and at least one lumen extending therebetween;
a handle attached to the proximal end of the catheter sheath;
a locking stylet located within the lumen of said catheter sheath; and
an electrode deployment means including a retractable tip section, comprising a set of deployable jaw electrodes each having a sharp end.
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Abstract
An improved lead extraction system having multiple-jaw cutting edge that is useful for extraction and removal of unwanted lead by a minimal invasive procedure. A lead extraction system suitable for radiofrequency ablation of scar tissues surrounding the implanted lead comprises a catheter sheath having a distal end, a proximal end and at least one lumen extending therebetween, wherein a locking stylet is provided. In one embodiment, the lead extraction system has fluid infusion and irrigation means at its distal tip section and a set of ablation electrodes for loosening the target tissue by applying radiofrequency energy and cooled fluid to said electrode and its contacted tissue.
100 Citations
20 Claims
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1. A lead extraction system comprising:
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a catheter sheath having a distal tip section, a distal end, a proximal end, and at least one lumen extending therebetween; a handle attached to the proximal end of the catheter sheath; a locking stylet located within the lumen of said catheter sheath; and an electrode deployment means including a retractable tip section, comprising a set of deployable jaw electrodes each having a sharp end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for operating a lead extraction system having a distal tip section under a non-deployed state, into the body, comprising:
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(a) sliding the system over an existing lead wire; (b) using the ultrasonic viewing markers to locate the target tissue; (c) intimately contacting the distal end of the catheter sheath with the target tissue; (d) deploying the multiple-jaw electrodes means; (e) applying RF energy to the electrodes while cutting through the tissue; (f) engaging the locking stylet onto the lead wire; and (g) extracting the lead by pulling the system out of a patient. - View Dependent Claims (14)
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15. A lead extraction application using a lead extraction system comprising:
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a catheter sheath having a distal tip section, a distal end, a proximal end, and at least one lumen extending therebetween; a handle attached to the proximal end of the catheter sheath; a locking stylet located within the lumen of said catheter sheath; an electrode deployment means including a retractable tip section, comprising a set of deployable jaw electrodes each having a sharp end; and applying RF energy to said electrodes. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification