LEAD DELIVERY DEVICE AND METHOD

• US 20090326551A1
• Filed: 05/29/2009
• Published: 12/31/2009
• Est. Priority Date: 06/27/2008
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Waldhauser, Steven Lawrence, Yasger, Kendra, Drake, Ronald Alan, Spear, Stanten C., Asleson, Andrea Jean, Tobin, Lindsey Marie, Hayden, Scott William
• Granted Patent: US 9,775,989 B2
• Time in Patent Office: Days
• US Class Current: 606/129
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61B 2017/22047 Means for immobilising the guide wire in the patient
• CPC Class Codes: A61B 2017/22048 Balloons
• CPC Class Codes: A61M 2025/09183 having tools at the distal tip
• CPC Class Codes: A61M 25/04 in the body, e.g. expansible A61M25/10, A61M16/0488 take precedence
• CPC Class Codes: A61M 25/09 Guide wires
• CPC Class Codes: A61M 25/1002 characterised by balloon shape A61M25/1006, A61M25/1009 take precedence
• CPC Class Codes: A61N 1/056 Transvascular endocardial electrode systems
• CPC Class Codes: A61N 2001/0585 Coronary sinus electrodes

Abstract

A medical apparatus includes a guidewire and a fixator catheter. The fixator catheter comprises a tubular body with a distal portion and a proximal portion, and further includes a distal opening, a fixator secured to the distal portion, and a body opening arranged between the fixator and the proximal portion. The guidewire passes through the body opening and the distal opening of the fixator catheter. The fixator is movable between a compact configuration and an expanded configuration and, in the expanded condition, is capable of anchoring the guidewire and fixator catheter in a lumen of a blood vessel.

Claims

1. A medical apparatus, comprising:

a guidewire; and

a fixator catheter comprising a tubular body with a distal portion and a proximal portion, the fixator catheter further comprising;

a distal opening;

a fixator secured to the distal portion; and

a body opening arranged between the fixator and the proximal portion, wherein the guidewire passes through the body opening and the distal opening of the fixator catheter.

2. The medical apparatus of claim 1, wherein the fixator comprises a mechanical helix.

3. The medical apparatus of claim 1, wherein the fixator comprises a magnetic fixator.

4. The medical apparatus of claim 1, wherein the fixator comprises a at least one expandable lobe.

5. The medical apparatus of claim 1, wherein the fixator comprises a suction tip.

6. The medical apparatus of claim 1, wherein the fixator comprises an adhesive.

7. The medical apparatus of claim 6, wherein the adhesive comprises at least one of a biocompatible adhesive, a bio-gel, a self-dissolving adhesive, and a combination thereof.

8. The medical apparatus of claim 1, wherein the fixator comprises a temperature controllable portion of the fixator catheter.

9. The medical apparatus of claim 1, wherein the fixator comprises a stent.

10. The medical apparatus of claim 1, wherein the fixator comprises a selectively activated portion of the fixator catheter movable between a compact configuration and an expanded configuration.

11. The medical apparatus of claim 1, wherein the fixator comprises a propulsion element.

12. The medical apparatus of claim 11, wherein the propulsion element comprises at least one propulsion jet.

13. The medical apparatus of claim 11, wherein the propulsion element comprises a propeller.

14. A method for delivering a medical apparatus, comprising:

passing a guidewire through a body opening and a distal opening of a fixator catheter, the fixator catheter comprising a tubular body with a distal portion and a proximal portion, a fixator secured to the distal portion and a body opening arranged between the fixator and the proximal portion,

navigating the guidewire to a desired site;

navigating the fixator catheter to the desired site;

releasably securing the fixator proximate the desired site; and

advancing an implantable electrically conductive lead of a cardiac device over the guidewire to the desired site while the fixator is secured.

15. The method of claim 14, wherein the fixator comprises a mechanical helix.

16. The method of claim 14, wherein the fixator comprises a magnetic fixator.

17. The method of claim 14, wherein the fixator comprises at least one expandable lobe.

18. The method of claim 14, wherein the fixator comprises a suction tip.

19. The method of claim 14, wherein the fixator comprises an adhesive.

20. The method of claim 19, wherein the adhesive comprises at least one of a biocompatible adhesive, a bio-gel, a self-dissolving adhesive, and a combination thereof.

21. The method of claim 14, wherein the fixator comprises a temperature controllable portion of the fixator catheter.

22. The method of claim 14, wherein the fixator comprises a stent.

23. The method of claim 14, wherein the fixator comprises a selectively activated portion of the fixator catheter movable between a compact configuration and an expanded configuration.

24. The method of claim 14, wherein the fixator comprises a propulsion element.

25. The method of claim 24, wherein the propulsion element comprises at least one propulsion jet.

26. The method of claim 24, wherein the propulsion element comprises a propeller.

27. The method of claim 14, further comprising:

inserting a distal end of a cannulated catheter through cardiac tissue into a main cardiac vessel;

inserting the guidewire and fixator catheter through the catheter;

advancing the guidewire and fixator catheter past the distal end of the catheter and into the desired site; and

removing the catheter;

wherein removing the catheter comprises removing the catheter without slitting the catheter.

28. The method of claim 14, further comprising:

inserting a distal end of a cannulated catheter through cardiac tissue into a main cardiac vessel;

inserting the guidewire and fixator catheter through the catheter;

advancing the guidewire and fixator catheter past the distal end of the catheter and into the desired site; and

removing the catheter;

wherein removing the catheter comprises removing the catheter prior to advancing the lead to the target site over the guidewire.