Template system and methods

• US 8,540,707 B2
• Filed: 12/21/2007
• Issued: 09/24/2013
• Est. Priority Date: 12/21/2007
• Status: Active Grant

• Current Assignee: St. Jude Medical (Abbott Laboratories Incorporated)
• Original Assignee: St. Jude Medical (Abbott Laboratories Incorporated)
• Inventors: Sliwa, John W., Eby, Thomas B.
• Primary Examiner(s): Peffley, Michael
• Assistant Examiner(s): VAHDAT, KHADIJEH A
• Application Number:
  US11/962,478
• Publication Number:
  US 20090163910A1
• Time in Patent Office: 2,104 Days
• Field of Search: 606 27- 31, 606/41
• US Class Current: 606/41
• CPC Class Codes: A61B 18/148 having a short, rigid shaft for accessing the inner body transcutaneously, e.g. for neurosurgery or arthroscopy
• CPC Class Codes: A61B 18/18 by applying electromagnetic radiation, e.g. microwaves radiation therapy A61N5/00
• CPC Class Codes: A61B 18/1815 using microwaves
• CPC Class Codes: A61B 18/20 using laser
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61B 2018/00011 with fluids
• CPC Class Codes: A61B 2018/00273 Anchoring means for temporary attachment of a device to tissue
• CPC Class Codes: A61B 2018/00291 using suction
• CPC Class Codes: A61B 2018/00797 measured by multiple temperature sensors
• CPC Class Codes: A61B 2018/00815 measured by a thermistor
• CPC Class Codes: A61B 2018/00821 measured by a thermocouple
• CPC Class Codes: A61B 2090/378 using ultrasound
• CPC Class Codes: A61B 2218/002 Irrigation
• CPC Class Codes: A61B 8/12 in body cavities or body tracts, e.g. by using catheters catheters per se A61M25/00
• CPC Class Codes: A61B 8/4209 by using holders, e.g. positioning frames
• CPC Class Codes: A61B 8/4236 characterised by adhesive patches
• CPC Class Codes: A61B 8/4245 involving determining the position of the probe, e.g. with respect to an external reference frame or to the patient
• CPC Class Codes: A61B 8/4281 characterised by sound-transmitting media or devices for coupling the transducer to the tissue
• CPC Class Codes: A61B 8/445 Details of catheter construction
• CPC Class Codes: C08L 2201/12 Shape memory

Abstract

Template systems and methods for various procedures (e.g., tissue ablation procedures) are disclosed. An exemplary template system comprises a track having at least one suction port. The at least one suction port anchors the track to a tissue after the track is positioned adjacent a target area. The template system may further comprise a transducer operatively associated with the track. Exemplary transducers include imaging transducers and ablating transducers. The transducer is guided by the track adjacent the target area while the transducer is moved along the track for a procedure. One or more umbilical may provide a conduit to the track and/or transducer so that the template system may be positioned in a patient'"'"'s body (e.g., for a procedure on the patient'"'"'s heart) and operated remotely by a physician or other user from outside of the patient'"'"'s body.

Claims

1. A template system for use in a medical procedure comprising:

a track comprising a base portion and at least one suction port, the at least one suction port configured to anchor the track to a tissue after the track is positioned adjacent a target area inside a patient'"'"'s body, wherein the track is foldable for deployment to a worksite, and unfoldable to a final shape and size after being located at the worksite inside the patient'"'"'s body;

at least one stationary shape retaining bridging member spanning from a first side of the base portion to another side of the base portion across an opening formed through the base portion of the track; and

a transducer operatively associatable with the track, the transducer configured to be guided by the track adjacent the target area while the transducer is moved along the track for the medical procedure, wherein the bridging member maintains a predetermined shape of the opening in the base portion of the track when the transducer is removed from the track.

2. The system of claim 1, further comprising an umbilical attached to the track, the umbilical configured to provide a conduit to the track for application of a vacuum to the at least one suction port.

3. The system of claim 1, further comprising an umbilical attached to the transducer, the umbilical configured to provide a conduit to the transducer for energy delivery.

4. The system of claim 1, further comprising an umbilical attached to the transducer, the umbilical configured to provide a conduit to the transducer for fluid delivery.

5. The system of claim 1, further comprising a wired drive system configured to move the transducer along the track, wherein the drive system is configured to engage the transducer to the track to move the transducer along the track.

6. The system of claim 1, further comprising an umbilical attached to the transducer, the umbilical configured to provide a conduit extending outside of a patient'"'"'s body for at least one driving wire, the at least one driving wire operable to control movement of the transducer on the track.

7. The system of claim 1, wherein the at least one suction port comprises at least one channel in a bottom surface of the track.

8. The system of claim 1, wherein the at least one bridging member includes a plurality of stationary support wires spanning the opening formed through the base portion, to maintain a predetermined width of the track during use.

9. The system of claim 1, wherein the track is flexible in at least one plane to substantially conform to a shape of the tissue during use.

10. The system of claim 1, wherein the track and the transducer each include at least one magnetic material configured to mutually develop magnetic forces to facilitate mating of the track with the transducer.

11. The system of claim 1, further comprising a fluid delivery port near a face of the transducer.

12. The system of claim 11, wherein the fluid delivery port is operable to provide a fluid interface between the transducer and the target area, said interface comprising a fluid filled membrane.

13. The system of claim 11, wherein the fluid delivery port is operable to cool at least one of the target area or the transducer.

14. The system of claim 1, further comprising a gear wheel on the transducer and a gear strip on the track, the gear wheel configured to engage the gear strip after the transducer is mounted to the track to move the transducer along the track.

15. The system of claim 14, further comprising an actuator operatively associated with the gear wheel on the transducer, the actuator operable to move the transducer along the track at a predetermined pace for a known distance.

16. The system of claim 1, wherein the transducer is selected from the group consisting of an ablation transducer, an imaging transducer, and a combination transducer for ablation and imaging.

17. The system of claim 1, wherein the transducer is separable from the track, the transducer configured to be mounted on the track after the track is anchored to the tissue.

18. A method of treatment comprising:

folding and inserting a track into a patient'"'"'s body and positioning the track adjacent a target area inside the patient'"'"'s body, wherein the track unfolds to a final shape and size after being located inside the patient'"'"'s body;

anchoring the track to a tissue in the target area;

positioning a transducer guided by the track adjacent the target area to perform a medical procedure; and

passing at least one driving wire into the patient'"'"'s body to engage the transducer to the track and extendable outside of a patient'"'"'s body for controlling a movement, position, or orientation of the transducer on the track.

19. The method of claim 18, further comprising passing a conduit to the track for application of a vacuum to at least one suction port on the track for anchoring the track to the tissue.

20. The method of claim 18, further comprising passing a conduit to the transducer for delivering energy to the transducer.

21. The method of claim 18, further comprising passing a conduit to the transducer for delivering fluid to the tissue or transducer.

22. The method of claim 18, further comprising mating the track and the transducer.

23. The method of claim 18, further comprising driving the transducer along the track.

24. A system for use in a medical procedure comprising:

means for attaching adjacent a target area inside a patient'"'"'s body, wherein the means for attaching is foldable for deployment to a worksite, and unfoldable to a final shape and size after being located at the worksite inside the patient'"'"'s body;

means for anchoring the means for attaching to a tissue after the means for attaching is positioned adjacent the target area; and

means for delivering energy to the target area from two or more positions along the means for attaching, the means for delivering energy mounted on the means for attaching after the means for attaching is anchored to the tissue.

25. The system of claim 24, further comprising means for providing a conduit to the means for attaching.

26. The system of claim 24, further comprising means for providing a conduit to the means for delivering energy.

27. The system of claim 24, further comprising means for maintaining a predetermined shape of the means for attaching in at least one dimension.

28. The system of claim 24, further comprising means for conforming the means for attaching to the tissue.

29. The system of claim 24, further comprising means for mating the means for attaching with the means for delivering energy.

30. The system of claim 24, further comprising means for moving the means for delivering energy at a controlled pace.