Magnetic surgical instrument system

• US 20040260273A1
• Filed: 06/18/2003
• Published: 12/23/2004
• Est. Priority Date: 06/18/2003
• Status: Abandoned Application

• Current Assignee: Trustees Of Columbia University In The City Of New York (Columbia University)
• Original Assignee: Trustees Of Columbia University In The City Of New York (Columbia University)
• Inventors: Wan, Elaine Y.
• Application Number:
  US10/465,466
• Publication Number:
  US 20040260273A1
• Time in Patent Office: Days
• US Class Current: 606/1
• CPC Class Codes: A61B 10/02 Instruments for taking cell samples or for biopsy A61B10/0038 and A61B10/0045 take precedence; needle locating or guiding means A61B17/3403; samplers for enzymology or microbiology C12M1/26; sampling or preparing biological specimens G01N33/48
• CPC Class Codes: A61B 18/1442 Probes having pivoting end effectors, e.g. forceps
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61B 2090/064 for measuring force, pressure or mechanical tension
• CPC Class Codes: A61B 2090/065 for measuring contact or contact pressure
• CPC Class Codes: A61B 34/70 Manipulators specially adapted for use in surgery
• CPC Class Codes: A61B 34/73 Manipulators for magnetic surgery

Abstract

The present invention provides a magnetic surgical instrument system for use in transmural surgical operations. The system includes at least two magnetic probes including magnetic components, such as a permanent magnet, an electromagnet, and a metal attracted to a magnet that attracts the magnetic probes to provide therewith a magnetic clamping force for clamping the wall of anatomical structures. The system may also include a driving device, which provides the driving signal to produce electromagnetic force and energy for various embodiments of the present invention, such as RF, microwave, laser, and cryogenic energy. The magnetic surgical system may also be adopted to ablate, cut, stable, and inject anatomical structure tissue clamped between the magnetic probes.

Claims

1. A magnetic surgical instrument system for use in transmural surgical operations comprising at least two magnetic probes and a driving device, each magnetic probe having at least one functional component associated therewith comprising a magnetic component, wherein the magnetic component of a first magnetic probe comprises an electromagnet and wherein the first magnetic probe is operatively connected to the driving device which provides the electric current to energize the electromagnet and produce therewith a magnetic clamping force, the magnetic component for a second magnetic probe is a magnetic component selected from the group consisting of a permanent magnet, an electromagnet, and a metal attracted to a magnet, wherein the system enables a user to clamp walls of an anatomical structure between the magnetic probes.

2. The instrument of claim 1, wherein the driving device is adopted to enable a user to selectively energize the electromagnet of the first magnetic probe thereby allowing the magnetic clamping force between the magnetic components to be turned on and off.

3. The instrument of claim 1, wherein the driving device is adopted to provide an adjustable magnetic clamping force, thereby enabling a user to vary the pressure applied to the walls of the anatomical structure.

4. The instrument of claim 1, wherein the first magnetic probe comprises a pressure sensor which supplies data associated with the amount of clamping force produced with the magnetic probes, the data used to monitor the pressure applied to the wall of the anatomical structure.

5. The instrument of claim 4, wherein the driving device is adopted to actively monitor and adjust the pressure applied to the wall of the anatomical structure.

6. The instrument of claim 1, wherein at least one of the magnetic probes comprises a functional element comprising an electrode, the magnetic probe operatively connected to the driving device which supplies energy to the electrode sufficient for a user to create transmural lesions therewith in the walls of the anatomical structure clamped between the magnetic probes.

7. The instrument of claim 6, wherein the driving device is adopted to monitor the amount of time that energy is applied to the walls of the anatomic structure.

8. The instrument of claim 7, wherein driving device is adopted to adjust or cutoff the amount of energy supplied to the electrode based on the time that energy is applied to the walls of the anatomic structure.

9. The instrument of claim 6, wherein at least two of the magnetic probes comprise a functional element comprising an electrode, the magnetic probes operatively connected to the driving device which supplies energy to the electrodes sufficient for a user to create transmural lesions therewith in the walls of the anatomical structure clamped between the magnetic probes.

10. The instrument of claim 9, wherein the energy supplied to the electrodes comprises radio frequency energy and wherein one magnetic probe comprises an active electrode of a bipolar electrode pair and another magnetic probe comprises a return electrode of a bipolar electrode pair.

11. The instrument of claim 9, wherein the energy supplied to the electrodes comprises radio frequency energy and wherein the electrodes are one of monopolar or bipolar electrodes providing the user the ability to create transmural lesions from both sides of the walls of the anatomical structure.

12. The instrument of claim 9, wherein the energy supplied by the driving devices is selected from the group consisting of radiofrequency energy, microwave energy, laser energy, and cryothermic energy.

13. The instrument of claim 9, wherein the driving device is adopted to supply an adjustable amount of energy to the electrodes thereby enabling a user to vary the amount of energy to create the transmural lesions.

14. The instrument of claim 13, wherein at least one of the magnetic probes comprises a temperature sensor for monitoring and adjusting the temperature at the site of the transmural lesion.

15. The instrument of claim 14, wherein at least two of the magnetic probes comprise a temperature sensor and wherein the driving device is adopted to enable a user to independently adjust the amount of energy supplied to the electrode of each of the magnetic probes.

16. The instrument of claim 15, wherein the driving device is adopted to monitor the temperature at the site of the lesion and automatically adjust the energy supplied to each of the magnetic probes.

17. The instrument of claim 1, wherein the first magnetic probe comprises a functional element comprising a stapler mechanism containing a staple and capable of driving a staple into the wall of the anatomical structure clamped between the magnetic probes, the force necessary to drive the staple into the wall of the anatomical structure provided by the magnetic clamping force between the magnetic probes.

18. The instrument of claim 17, wherein the functional component comprises a retractable stapler containing a staple therein which is ejected out of the retractable stapler upon application of the magnetic clamping force on the magnetic probes.

19. The instrument of claim 1, wherein the first magnetic probe comprises a functional element comprising a blade capable of incising at lease partially through the wall of the anatomical structure clamped between the magnetic probes, the force necessary to incise the wall of the anatomical structure provided by the magnetic clamping force between the magnetic probes.

20. The instrument of claim 19, wherein the functional component comprises a retracted blade, which is ejected out of the magnetic probe upon application of the magnetic clamping force on the magnetic probes.

21. The instrument of claim 1, wherein the first magnetic probe comprises a functional element comprising at least one needle for injecting substances into the wall of the anatomical structure clamped between the magnetic probes, the force necessary to drive the needle into the wall of the anatomical structure provided by the magnetic clamping force between the magnetic probes.

22. The instrument of claim 21, wherein the functional component comprises a retracted needle, which is ejected out of the magnetic probe upon application of the magnetic clamping force on the magnetic probes.

23. The instrument of claim 1, wherein the first magnetic probe comprises a functional element comprising at least one suturing needle and a suture receptacle which provides sutures for the suturing needle, thereby allowing a user to suture walls of an anatomical structure clamped between the magnetic probes.

24. A magnetic surgical instrument system for use in transmural surgical operations comprising at least two magnetic probes and a driving device, each magnetic probe comprising a magnetic component and an electrode, wherein the magnetic component of a first magnetic probe comprises an electromagnet and the magnetic component of a second magnetic probe is a magnetic component selected from the group consisting of a permanent magnet, an electromagnet, and a metal attracted to a magnet, the magnetic probes operatively connected to the driving device which provides the electric current to energize the electromagnet and produce therewith a magnetic clamping force, and which supplies energy to the electrodes sufficient for a user to create transmural lesions therewith in the walls of an anatomical structure clamped between the magnetic probes.

25. A magnetic surgical instrument system for use in transmural surgical operations comprising at least two magnetic probes and a driving device, each magnetic probe comprising a magnetic component and an electrode, wherein the magnetic component of a first magnetic probe comprises an electromagnet and the magnetic component of a second magnetic probe is a magnetic component selected from the group consisting of a permanent magnet, an electromagnet, and a metal attracted to a magnet, the magnetic probes operatively connected to the driving device which provides the electric current to energize the electromagnet and produce therewith a magnetic clamping force, and which supplies radio frequency energy to the electrodes sufficient for a user to create transmural lesions therewith in the walls of an anatomical structure clamped between the magnetic probes from both sides of the wall of the anatomical structure, wherein the driving device is adopted to enable a user to selectively energize the electromagnet of the first magnetic probe thereby allowing the magnetic clamping force between the magnetic components to be turned on and off.

26. A magnetic surgical instrument system for use in transmural surgical operations comprising at least two magnetic probes and a driving device, each magnetic probe comprising a magnetic component and an electrode, wherein the magnetic components produce a magnetic clamping force which allows a user to clamp walls of an anatomical structure between the magnetic probes, and wherein the electrode of at least one of the magnetic probes comprises an active electrode of a bipolar electrode pair and the electrode of at least one of the other magnetic probes comprises a return electrode of a bipolar electrode pair, wherein the magnetic probes are operatively connected to the driving device which supplies radio frequency energy to the active electrode sufficient for a user to create transmural lesions therewith in the walls of an anatomical structure clamped between the magnetic probes.

27. A magnetic probe comprising a magnetic component and a camera, wherein the camera is capable of providing at least one of still images and video images of a site and the magnetic component enables a user to navigate the probe through a subject'"'"'s body with an external magnet.

28. A magnetic probe comprising a magnetic component and a biopsy element, wherein the biopsy element is capable of taking a biopsy sample of tissue in a structure having a lumen and the magnetic component enables a user to navigate the probe into the structure with an external magnet.

30. The method of claim 28, wherein the first magnetic probe is an unattached magnetic probe and wherein inserting the first magnetic probe into the subject'"'"'s heart comprises:

clamping an atrium of the subject'"'"'s heart to prevent blood flow there through;

incising the atrium;

inserting the first magnetic probe into the atrium through the incision;

closing the incision; and

releasing the clamped atrium.

29. A method for treating atrial fibrillation comprising:

inserting a first magnetic probe into a subject'"'"'s heart;

clamping a wall of the subject'"'"'s heart between the first magnetic probe and a second magnetic probe;

applying energy to the wall of the subject'"'"'s heart clamped between the magnetic probes sufficient to create a lesion therein; and

removing the first magnetic probe from the subject'"'"'s heart.

31. The method of claim 29, wherein removing the first magnetic probe from the subject'"'"'s heart comprises:

clamping the atrium;

opening the incision;

withdrawing the first magnetic probe through the incision;

closing the incision; and

releasing the clamped atrium.