Devices for Imaging and Navigation During Minimally Invasive Non-Bypass Cardiac Procedures

• US 20070233238A1
• Filed: 03/30/2007
• Published: 10/04/2007
• Est. Priority Date: 03/31/2006
• Status: Abandoned Application

• Current Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Original Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Inventors: Hill, Alex, Douk, Nareak, Rafiee, Nasser, House, Morgan, Huynh, Rany
• Application Number:
  US11/693,826
• Publication Number:
  US 20070233238A1
• Time in Patent Office: Days
• US Class Current: 623/2.110
• CPC Class Codes: A61B 2017/00022 Sensing or detecting at the treatment site
• CPC Class Codes: A61B 2034/2051 Electromagnetic tracking systems
• CPC Class Codes: A61B 2090/3975 active
• CPC Class Codes: A61B 34/20 Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
• CPC Class Codes: A61B 5/06 Devices, other than using radiation, for detecting or locating foreign bodies for removing same A61B17/50 ; determining position of probes within or on the body of the patient
• CPC Class Codes: A61B 5/064 using markers A61B5/062 takes precedence
• CPC Class Codes: A61B 90/36 Image-producing devices or illumination devices not otherwise provided for

Abstract

Delivery devices for placement of therapeutic devices relative a heart valve annulus of a beating heart that are delivered to the heart via minimally invasive surgical procedures and can be used in the heart during a therapeutic procedure that can be visualized in real time and be guided to specific locations within the heart. The systems and methods can be used to determine the exact location of the implantation delivery devices and therapeutic devices relative to a valve annulus and to determine that any therapeutic device is implanted in the correct location.

Claims

1. A system for delivering a device to a location of an anatomical structure, the system comprising:

a delivery device comprising a plurality of electromagnetic coils spaced from each other along a distal end portion of the delivery device, wherein the delivery device is moveable for positioning each of the plurality of electromagnetic coils relative to each of a plurality of predetermined locations of the anatomical structure; and

a processor for determining the locations of the electromagnetic coils relative to the predetermined locations of the anatomical structure and relative to at least one sensor.

2. The system of claim 1, wherein the anatomical structure is a mitral valve annulus.

3. The system of claim 1, further comprising a navigation system comprising the at least one sensor, the processor, at least one power source, and a display device for viewing the electromagnetic coils of the delivery device during delivery of the device.

4. The system of claim 1, further comprising a device to be implanted relative to the anatomical structure.

5. The system of claim 1, wherein each of the electromagnetic coils has a corresponding predetermined location of the anatomical structure.

6. The system of claim 1, wherein the delivery device comprises at least three electromagnetic coils.

7. The system of claim 1, wherein the delivery device further comprises a first placement component for delivering a therapeutic device to a first side of the anatomical structure, wherein the first placement component comprises a distal end having a first curvature.

8. The system of claim 7, wherein the delivery device further comprises a second placement component for delivering a therapeutic device to a second side of the anatomical structure, wherein the second placement component comprises a distal end having a second curvature that is different from the first curvature.

9. The system of claim 8, wherein the first side of the anatomical structure comprises the anterior side of a mitral valve annulus, and wherein the second side of the anatomical structure comprises the posterior side of a mitral valve annulus.

10. The system of claim 8, wherein the first and second placement components each comprise at least three electromagnetic coils spaced from each other along their respective distal ends.

11. The system of claim 1, wherein the delivery device comprises a single component having a distal end portion for delivering a therapeutic device to the entire anatomical structure.

12. A method of delivering a therapeutic device to a mitral valve annulus, the method comprising the steps of:

providing a delivery device comprising a plurality of electromagnetic coils spaced from each other along a distal end portion of the delivery device;

positioning the delivery device adjacent to the mitral valve annulus so that at least three of the plurality of electromagnetic coils are proximal to at least three corresponding predetermined locations on the anatomical structure; and

delivering the therapeutic device to the mitral valve annulus.

13. The method of claim 12, wherein the therapeutic device is configured to treat mitral valve regurgitation.

14. The method of claim 12, wherein the delivery device further comprises a first placement component for delivering a therapeutic device to an anterior side of the mitral valve annulus, wherein the first placement component comprises a distal end having a first curvature that is preselected to mimic the shape of the anterior side of the mitral valve annulus.

15. The method of claim 14, wherein the delivery device further comprises a second placement component for delivering a therapeutic device to a posterior side of the mitral valve annulus, wherein the second placement component comprises a distal end having a second curvature that is different from the first curvature.

16. The method of claim 15, wherein the first and second placement components each comprise at least three electromagnetic coils spaced from each other along their respective distal ends.

17. The method of claim 15, wherein the first and second placement components are simultaneously positioned adjacent to the mitral valve annulus for delivering the therapeutic device to the anterior and posterior sides of the mitral valve annulus.

18. The method of claim 15, wherein the first and second placement components are sequentially positioned adjacent to the mitral valve annulus for delivering the therapeutic device to both the anterior side and the posterior side of the mitral valve annulus.

19. The method of claim 12, wherein the positioning the delivery device adjacent to the mitral valve annulus is performed off bypass on a beating heart.

20. The method of claim 12, wherein the electromagnetic coils are in communication with an electromagnetic navigation system, the method further comprising the step of wirelessly communicating with the electromagnetic navigation system using wireless sensors.