Systems and Methods for Removal of Intravascular Leads

• US 20110213398A1
• Filed: 01/20/2011
• Published: 09/01/2011
• Est. Priority Date: 01/20/2010
• Status: Active Grant

• Current Assignee: Pavilion Medical Innovations, LLC
• Original Assignee: Pavilion Medical Innovations, LLC
• Inventors: Chin, Albert K., Aklog, Lishan
• Granted Patent: US 8,632,558 B2
• Time in Patent Office: Days
• US Class Current: 606/170
• CPC Class Codes: A61B 17/50 Instruments, other than pincettes or toothpicks, for removing foreign bodies from the human body locating otherwise A61B5/06; locating by radiation A61B6/00; removing calculi A61B17/22; from the eyes A61F9/00709
• CPC Class Codes: A61N 1/05 for implantation or insertion into the body, e.g. heart electrode A61N1/06 takes precedence
• CPC Class Codes: A61N 2001/0578 having means for removal or extraction

Abstract

Systems and methods for extraction of implanted articles are disclosed. According to aspects illustrated herein, there is provided a system for extraction of an implanted article that includes an elongated member, guide member disposed at a distal section of the elongated member and having a pathway in substantially parallel relationship to the elongated member, through which pathway an implanted article can be accommodated, and a cutting mechanism, situated between the distal section of the elongated member and the guide member, for severing a fibrous adhesion about the implanted article to allow the implanted article to be extracted.

Claims

1. An extraction system comprising:

an elongated member;

a guide member disposed at a distal section of the elongated member and having a pathway in a substantially parallel relationship to the elongated member, the pathway being configured to receive an implanted article therethrough; and

a cutting mechanism, situated between the distal section of the elongated member and the guide member, for severing a fibrous adhesion about the implanted article to allow the implanted article to be extracted.

2. The system of claim 1, wherein the guide member is configured to maintain the cutting mechanism at a substantially uniform distance from the implanted article received in the pathway of the guide member.

3. The system of claim 1, wherein the guide member comprises a loop attached to an upper surface of the cutting mechanism.

4. The system of claim 1, wherein the guide member further includes an attachment section in open communication with the pathway.

5. The system of claim 4, wherein the attachment section includes guide slots extending between a leading edge and a trailing edge of the attachment section, the guide slots configured to receive guide pins disposed on each side of the cutting mechanism.

6. The system of claim 4, wherein the cutting mechanism extends from the attachment section into the guide member.

7. The system of claim 4, wherein the pathway of the guide member is configured to receive an elongated tubular implanted article.

8. The system of claim 1 wherein the cutting mechanism translates substantially along a longitudinal axis of the elongated member from a first retracted position to the second advanced position.

9. The system of claim 1 wherein the guide member is configured to maintain the cutting mechanism on a luminal side of the implanted article.

10. A system for extraction comprising:

a guide member;

a pathway defined by the guide member and configured to accommodate an implanted article therethrough; and

a cutting mechanism positioned adjacent to the pathway, so as to enable the cutting mechanism to sever a fibrous adhesion about the implanted article on a luminal side of the implanted article.

11. The system for extraction of claim 10, wherein the guide member comprises a loop attached to an upper surface of the cutting mechanism.

12. The system for extraction of claim 10, wherein the guide member further includes an attachment section in open communication with the pathway.

13. The system for extraction of claim 12, wherein the attachment section includes guide slots extending between a leading edge and a trailing edge of the attachment section, the guide slots configured to receive guide pins disposed on each side of the cutting mechanism.

14. The system for extraction of claim 10, wherein the pathway of the guide member is configured to receive an elongated tubular implanted article.

15. The system for extraction of claim 10 further comprising a control member attached to the cutting mechanism for actuating the cutting mechanism substantially along a longitudinal axis of the elongated member from a first retracted position to the second advanced position.

16. The system for extraction of claim 10 further comprising an actuator actuating the cutting mechanism substantially along a longitudinal axis of the elongated member from a first retracted position to the second advanced position.

17. A method for separating an adhesion from an implanted article comprising:

accommodating, in a pathway defined by a guide member, a proximal end of the implanted article;

positioning a cutting mechanism adjacent to the guide member, such that the cutting mechanism is oriented to sever an adhesion about the implanted article on a luminal side of the implanted article;

advancing the guide member distally to a site of the adhesion;

severing the adhesion with the cutting mechanism; and

separating the adhesion from the implanted article.

18. The method of claim 17 wherein the step of severing the adhesion includes permitting the cutting mechanism to translate substantially along a longitudinal axis of the elongated member from a first retracted position to the second advanced position.

19. The method of claim 17, wherein, in the step of accommodating, the guide member comprises an attachment section in open communication with the pathway.

20. The method of claim 19, wherein, in the step of accommodating, the attachment section of the guide member includes guide slots extending between a leading edge and a trailing edge of the attachment section, the guide slots configured to receive guide pins disposed on each side of the cutting mechanism.

21. The method of claim 17 wherein the step of separating the adhesion from the implanted article includes advancing the guide member distally past the site of the adhesion.

22. The method of claim 17 wherein the step of separating the adhesion from the implanted article includes manipulating the implanted article.

23. The method of claim 17 further comprising extracting the implanted article from the body of a patient.