TMR energy delivery system

• US 6,027,497 A
• Filed: 02/03/1997
• Issued: 02/22/2000
• Est. Priority Date: 03/29/1996
• Status: Expired due to Fees

• Current Assignee: Eclipse Surgical Tech Incorporated
• Original Assignee: Eclipse Surgical Technologies, Inc. (Cryolife Incorporated)
• Inventors: Mueller, Richard L., Daniel, Steve A., Dowling, Robert D.
• Primary Examiner(s): Dvorak, Linda C. M.
• Assistant Examiner(s): YARNELL, BRYAN KEITH
• Application Number:
  US08/794,733
• Time in Patent Office: 1,114 Days
• Field of Search: 606/7, 606/10, 606/2, 606/39, 606/13-16, 606/41, 606/45-48, 606/27-29, 606/167-170, 607/88, 607/89, 607/92, 607/93, 607/96, 607/98, 607/100, 607/113, 600/114, 600/129
• US Class Current: 606/15
• CPC Class Codes: A61B 1/00098 Deflecting means for inserted tools
• CPC Class Codes: A61B 1/00154 using guiding arrangements for insertion
• CPC Class Codes: A61B 1/018 for receiving instruments
• CPC Class Codes: A61B 1/267 for the respiratory tract, e.g. laryngoscopes, bronchoscopes
• CPC Class Codes: A61B 1/3132 for laparoscopy
• CPC Class Codes: A61B 18/24 with a catheter A61B18/26, A61B18/28 take precedence
• CPC Class Codes: A61B 2017/00247 Making holes in the wall of the heart, e.g. laser Myocardial revascularization
• CPC Class Codes: A61B 2017/306 holding by means of suction
• CPC Class Codes: A61B 2018/00291 using suction
• CPC Class Codes: A61B 2018/00392 Transmyocardial revascularisation
• CPC Class Codes: A61B 90/37 Surgical systems with images on a monitor during operation
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers

Abstract

A TMR energy delivery device is introduced through a first minimally invasive penetration of a patient'"'"'s chest. Sufficient energy if delivered from the wave guide to the wall of the heart to form a channel through at least a portion of the wall. The device includes a visualization device or camera with a rigid portion and a distal end portion that is flexible, a cup member coupled to a distal end of the flexible distal portion, and a vacuum source coupled to the cup member for providing mechanical stability against the heart wall.

Claims

1. A TMR energy delivery system, comprising:

a visualization device having a reusable visualization member, said device having a rigid portion and a flexible distal tip portion coupled to a distal end of the rigid portion;

a TMR energy delivery device removably mounted to the visualization device configured to deliver a sufficient level of energy to create a channel in a heart wall;

a cup member coupled to a distal end of the flexible distal tip portion of the visualization device; and

a vacuum source coupled to the cup member for providing mechanical stability against the heart wall.

2. The system of claim 1, wherein the visualization member is a fiber optic.

3. The system of claim 1, wherein the visualization member is a CCD based camera system.

4. The system of claim 3, wherein the camera is disposable.

5. The system of claim 3, wherein the camera is reusable.

6. The system of claim 3, wherein the camera is usable for a selected number of uses.

7. The system of claim 1, further including a handle coupled to the visualization device with at least one of an axially or rotationally moving member configured to facilitate movement of the TMR energy delivery device coupled thereto, wherein the TMR energy delivery device is an optical fiber that delivers laser energy to a selected site.

8. The system of claim 1, further including a handle with an energy delivery device advancement member and a hand actuated motion device configured to provide an articulation of a distal portion of the visualization device.

9. The system of claim 8, wherein the hand actuated motion device is coupled to the visualization device and provides an articulation motion.

10. The system of claim 1 wherein the cup member is configured to improve visualization.

11. The system of claim 1, wherein the cup member is configured to provide an anchoring of a distal end of the visualization device.

12. The system of claim 1, wherein the cup member includes a suction cup.

13. The system of claim 1, wherein the cup member includes a lubricious exterior surface.

14. The system of claim 1, wherein the cup member and the handle are incorporated as a single unit.

15. The system of claim 1, wherein the cup member and the handle are separate units.

16. The system of claim 1, wherein the cup member is coupled to the visualization device with an elastomer.

17. The system of claim 1, wherein the cup member is coupled to the visualization device with a mechanically adjustable collar that provides compression.

18. A TMR delivery system, comprising:

a TMR energy delivery device including an elongated body;

a camera configured to provide a minimally invasive surgical site view, the camera including a shaft with at least a portion of the shaft being flexible and a portion of the shaft being rigid;

an articulation device coupled to one of the TMR energy delivery device or the camera and providing a simultaneous straightening and articulation of at least a portion of the camera and at least a portion of the TMR energy delivery device following introduction of the TMR energy delivery device and the camera through a trocar port;

a cup member coupled to the flexible portion of the shaft; and

a vacuum source coupled to the cup member for providing stability against a heart wall.

19. The system of claim 18, wherein the articulation device includes a pull cable.

20. The system of claim 18, wherein the articulation device includes a straightening device configured to be coupled to a pre-bent shaft of the elongated body.