Implantable Retention System and Method

• US 20110172606A1
• Filed: 03/22/2011
• Published: 07/14/2011
• Est. Priority Date: 01/07/2005
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Olson, Robert L.
• Granted Patent: US 8,433,424 B2
• Time in Patent Office: Days
• US Class Current: 604/174
• CPC Class Codes: A61B 2017/00469 for insertion of instruments, e.g. guide wire, optical fibre
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body
• 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 2001/0582 Suture sleeves

Abstract

An implantable anchor for anchoring a lead or catheter relative to biological tissue, implantable system including such an anchor and a lead or catheter, and a method of use of such anchor. The anchor comprises a body having a channel adapted to receive a catheter or lead, and a cover mounted on the body for pivoting motion along a lateral axis, that is an axis that extends generally in the lateral direction perpendicular to the catheter or lead, between an open position in which the anchor is adapted to allow a lead or catheter to be placed in or moved along the channel, and a locked position in which the anchor is adapted to retain a lead or catheter within the channel.

Claims

1. A method of anchoring an elongate medical device to biological tissue, the method comprising:

providing an anchor having a body and a cover in which the cover is in an open position;

placing the elongate medical device in a channel defined in the body of the anchor;

pivoting the cover relative to the body, along an axis that is perpendicular to the longitudinal axis of the elongate medical device, to a locked position in which the cover presses against the elongate medical device; and

suturing the anchor to biological tissue.

2. The method of claim 1 further comprising locking the cover in its locked position with a snap lock mechanism formed by the cover and body.

3. The method of claim 2 wherein the step of locking the cover in its locked position includes deflecting locking arms on the cover over a flange on the body such that the locking arms being snap over the flange as the cover is moved to its locked position.

4. The method of claim 3 wherein a suture-receiving through hole of the cover is moved into alignment with a suture-receiving through hole of the body when the cover is moved to its locked position in the step of pivoting the cover relative to the body, along an axis that is perpendicular to the longitudinal axis of the elongate medical device, to a locked position in which the cover presses against the elongate medical device.

5. The method of claim 1 wherein the step of suturing the anchor to biological tissue includes tying at least one suture along a suture-receiving annular groove formed by the cover and the body such that the cover is held in its locked position by the suture.

6. A method of anchoring an elongate medical device to biological tissue, the method comprising:

providing an anchor having a body and a cover in which the cover is in an open position and the body providing protrusions defining a lateral axis;

placing the elongate medical device in a channel defined in the body of the anchor;

pivoting the cover relative to the body, about the protrusions and along the lateral axis that is perpendicular to the longitudinal axis of the elongate medical device, to a locked position in which the cover presses against the elongate medical device; and

suturing the anchor to biological tissue.

7. The method of claim 6 further comprising locking the cover in its locked position with a snap lock mechanism formed by the cover and body.

8. The method of claim 7 wherein the step of locking the cover in its locked position includes deflecting locking arms on the cover over a flange on the body such that the locking arms being snap over the flange as the cover is moved to its locked position.

9. The method of claim 8 wherein a suture-receiving through hole of the cover is moved into alignment with a suture-receiving through hole of the body when the cover is moved to its locked position in the step of pivoting the cover relative to the body, along an axis that is perpendicular to the longitudinal axis of the elongate medical device, to a locked position in which the cover presses against the elongate medical device.

10. The method of claim 6 wherein the step of suturing the anchor to biological tissue includes tying at least one suture along a suture-receiving annular groove formed by the cover and the body such that the cover is held in its locked position by the suture.

11. A method of anchoring an elongate medical device to biological tissue, the method comprising:

providing an anchor having a body and a cover in which the cover is in an open position;

placing the elongate medical device in a channel defined in the body of the anchor, the channel including surface features;

pivoting the cover relative to the body, along the lateral axis that is perpendicular to the longitudinal axis of the elongate medical device, to a locked position in which the cover presses against the elongate medical device to retain the elongate medical device within the channel by creating contact of the surface features to the elongate medical device; and

suturing the anchor to biological tissue.

12. The method of claim 11 further comprising locking the cover in its locked position with a snap lock mechanism formed by the cover and body.

13. The method of claim 12 wherein the step of locking the cover in its locked position includes deflecting locking arms on the cover over a flange on the body such that the locking arms being snap over the flange as the cover is moved to its locked position.

14. The method of claim 13 wherein a suture-receiving through hole of the cover is moved into alignment with a suture-receiving through hole of the body when the cover is moved to its locked position in the step of pivoting the cover relative to the body, along an axis that is perpendicular to the longitudinal axis of the elongate medical device, to a locked position in which the cover presses against the elongate medical device.

15. The method of claim 11 wherein the step of suturing the anchor to biological tissue includes tying at least one suture along a suture-receiving annular groove formed by the cover and the body such that the cover is held in its locked position by the suture.

16. A method of anchoring an elongate medical device to biological tissue, the method comprising:

providing an anchor having a body and a cover in which the cover is in an open position;

placing the elongate medical device in a channel defined in the body of the anchor, the channel defining a longitudinal axis, the body further having a lumen on each end of the channel with each lumen sharing the longitudinal axis of the channel;

pivoting the cover relative to the body, along an axis that is perpendicular to the longitudinal axis of the elongate medical device, to a locked position in which the cover presses against the elongate medical device; and

suturing the anchor to biological tissue.

17. The method of claim 16 further comprising locking the cover in its locked position with a snap lock mechanism formed by the cover and body.

18. The method of claim 17 wherein the step of locking the cover in its locked position includes deflecting locking arms on the cover over a flange on the body such that the locking arms being snap over the flange as the cover is moved to its locked position.

19. The method of claim 18 wherein a suture-receiving through hole of the cover is moved into alignment with a suture-receiving through hole of the body when the cover is moved to its locked position in the step of pivoting the cover relative to the body, along an axis that is perpendicular to the longitudinal axis of the elongate medical device, to a locked position in which the cover presses against the elongate medical device.

20. The method of claim 16 wherein the step of suturing the anchor to biological tissue includes tying at least one suture along a suture-receiving annular groove formed by the cover and the body such that the cover is held in its locked position by the suture.