METHODS AND SYSTEMS FOR REMOVAL OF IMPLANTABLE INTRAVASCULAR DEVICES

• US 20110112548A1
• Filed: 11/08/2010
• Published: 05/12/2011
• Est. Priority Date: 11/06/2009
• Status: Abandoned Application

• Current Assignee: Synecor LLC
• Original Assignee: Synecor LLC
• Inventors: Bardsley, Earl, Smith, Jeffrey, Williams, Michael, Orth, Geoff, Glenn, Richard, Sanders, William, Fifer, Daniel, Graczyk, Wendy
• Application Number:
  US12/941,796
• Publication Number:
  US 20110112548A1
• Time in Patent Office: Days
• US Class Current: 606/129
• CPC Class Codes: A61B 17/29 Forceps for use in minimally invasive surgery
• CPC Class Codes: A61B 17/320016 Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes A61B10/0233, A61B17/29, A61B17/3207 take precedence
• CPC Class Codes: A61B 2017/00358 Snares for grasping
• CPC Class Codes: A61B 2017/32006 with a cutting strip, band or chain, e.g. like a chainsaw
• CPC Class Codes: A61N 1/37205 Microstimulators, e.g. implantable through a cannula
• CPC Class Codes: A61N 2001/0578 having means for removal or extraction

Abstract

Improved methods, systems and apparatuses for extracting devices implanted within the vasculature of a patient are provided, including a method of extracting an intravascular device anchored in a vasculature of a patient, the device including a device body and a lead coupled to the device body, the lead having a distal end including an electrode, the distal end being fixed in a heart of the patient, the method comprising forming an incision in the vasculature, disconnecting the lead from the device body, removing the distal end of the lead from the heart, withdrawing the lead from the patient, disconnecting the device body from an anchor, and withdrawing the device body from the patient via the incision.

Claims

1. A method of extracting an intravascular device anchored in a vasculature of a patient, the device including a device body and a lead coupled to the device body, the lead having a distal end including an electrode, the distal end being fixed in a heart of the patient, the method comprising:

forming an incision in the vasculature;

disconnecting the lead from the device body;

removing the distal end of the lead from the heart;

withdrawing the lead from the patient;

disconnecting the device body from an anchor; and

withdrawing the device body from the patient via the incision.

2. The method of claim 1, wherein disconnecting the lead from the device body comprises cutting the lead.

3. The method of claim 1, wherein removing the distal end of the lead from the heart comprises cutting the distal end of the lead.

4. The method of claim 1, wherein disconnecting the device body from the anchor comprises cutting the device body.

5. The method of claim 1, wherein forming an incision in the vasculature comprises forming an incision in the vasculature at a location inferior of the heart of the patient.

6. The method of claim 1, further comprising:

introducing a safety sheath into the vasculature;

advancing the safety sheath proximate the lead;

manipulating the safety sheath and/or the lead such that a portion of the lead is within the safety sheath; and

disconnecting the lead from the device body by cutting the lead body from within the safety sheath.

7. The method of claim 6, wherein manipulating the safety sheath and/or the lead comprises grasping the lead with a snare and withdrawing a portion of the lead into the safety sheath.

8. The method of claim 1, wherein disconnecting the device body from an anchor comprises:

advancing a cutting tool having a closeable loop portion over the device body to a desired location;

causing the loop portion to close around the device body at the desired location, thereby cutting the device body and separating the device from the anchor.

9. A system for extracting an intravascular device anchored in a vasculature of a patient, the device including a device body and a lead coupled to the device body, the lead having a distal end including an electrode, the distal end being fixed in a heart of the patient, the system comprising:

a safety sheath configured to be temporarily introduced into the vasculature of the patient;

a lead snare having a closeable snare portion, the lead snare configured to releasably capture a portion of the lead;

a lead cutter having a cutting mechanism, the lead cutter configured to sever the lead;

a device snare having a closeable snare portion, the device snare configured to releasably grasp the device body of the intravascular device; and

a tip cutter having a closeable loop portion, the loop portion configured to be advanceable over the device body.

10. A method of extracting an intravascular device anchored in a vasculature of a patient, the device including a device body and a lead coupled to the device body, the lead having a distal end including an electrode, the distal end being fixed in a heart of the patient, the method comprising:

providing a safety sheath, a snare, a lead cutter and a tip cutter; and

providing instructions for extracting the intravascular device, including;

forming an incision in the vasculature;

positioning the safety sheath within the vasculature and proximate the lead;

grasping the lead with the snare and pulling a portion of the lead within the safety sheath;

cutting the lead with the lead cutter;

grasping the device body with the snare;

advancing the tip cutter over the device body to a desired location; and

cutting the device body to disconnect the device body from an anchor.

11. The method of claim 10, wherein providing instructions further comprises:

advancing the tip cutter over the lead to the distal end of the lead;

actuating the tip cutter to cut the distal end of the lead from the heart; and

removing the lead from the patient.

12. A method of extracting an intravascular device anchored in a vasculature of a patient, the device including a device body and a lead coupled to the device body, the lead having a distal end including an electrode, the distal end being fixed in a heart of the patient, the method comprising:

obtaining access to the vasculature;

disconnecting the lead from the device body;

disconnecting the device body from an anchor; and

withdrawing the device body from the patient.

13. The method of claim 12, further comprising:

removing the distal end of the lead from the heart; and

withdrawing the lead from the patient.

14. The method of claim 12, further comprising:

deploying a stent within the vasculature to secure the lead against a vessel wall.