TISSUE ENGAGING HEMOSTASIS DEVICE

• US 20080215050A1
• Filed: 03/02/2007
• Published: 09/04/2008
• Est. Priority Date: 03/02/2007
• Status: Abandoned Application

• Current Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Inventors: Bakos, Gregory J.
• Application Number:
  US11/681,435
• Publication Number:
  US 20080215050A1
• Time in Patent Office: Days
• US Class Current: 606/49
• CPC Class Codes: A61B 18/1445 at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
• CPC Class Codes: A61B 2018/00595 Cauterization
• CPC Class Codes: A61B 2018/1435 Spiral
• CPC Class Codes: A61B 2018/1467 using more than two electrodes on a single probe
• CPC Class Codes: A61B 2090/032 pressure limiting, e.g. hydrostatic

Abstract

Various methods and devices are provided for cauterizing tissue. In one embodiment, a device for cauterizing tissue is provided and includes an elongate shaft adapted to be inserted through a body lumen, and a bipolar hemostasis probe disposable through the flexible elongate shaft and having a distal end adapted to cauterize tissue. An articulating jaw can be movably coupled to a distal end of the elongate shaft such that the articulating jaw and the distal end of the probe are adapted to grasp tissue therebetween. The probe can have at least one electrode disposed on a distal end thereof, and a proximal end of the probe can be adapted to couple to an energy source for delivering energy to the distal end of the probe to facilitate cauterization of tissue.

Claims

1. A device for cauterizing tissue, comprising:

a flexible elongate shaft adapted to be inserted through a body lumen;

a bipolar hemostasis probe disposable through the flexible elongate shaft and having a distal end adapted to cauterize tissue; and

an articulating jaw movably coupled to a distal end of the flexible elongate shaft such that the articulating jaw and the distal end of the bipolar hemostasis probe are adapted to grasp tissue therebetween.

2. The device of claim 1, wherein the bipolar hemostasis probe has at least one electrode disposed on a distal end thereof.

3. The device of claim 2, wherein the electrode is coiled around a portion of the bipolar hemostasis probe.

4. The device of claim 2, wherein the electrode extends longitudinally along a portion of the bipolar hemostasis probe.

5. The device of claim 1, wherein the flexible elongate shaft has first and second lumens extending therethrough.

6. The device of claim 5, wherein the bipolar hemostasis probe is slidably disposed through the first lumen of the flexible elongate shaft, and an articulating mechanism extends through the second lumen of the flexible elongate shaft and is coupled to the articulating jaw such that the articulating mechanism is adapted to effect movement of the articulating jaw.

7. The device of claim 6, wherein the articulating mechanism comprises at least one cable.

8. The device of claim 6, wherein the articulating mechanism is effective to move the articulating jaw between a first position in which the articulating jaw is spaced apart from the distal end of the bipolar hemostasis probe, and second position in which the articulating jaw and the distal end of the bipolar hemostasis probe are adapted to grasp tissue therebetween.

9. The device of claim 6, wherein a proximal end of the articulating mechanism is coupled to an actuator disposed on a handle that is coupled to a proximal end of the flexible elongate shaft, the actuator being effective to axially move the articulating mechanism to effect movement of the articulating jaw.

10. The device of claim 9, wherein the articulating jaw is adapted to apply a predetermined force to tissue engaged between the probe and the articulating jaw.

11. The device of claim 1, wherein a proximal end of the bipolar hemostasis probe is adapted to couple to an energy source for delivering energy to the distal end of the probe to facilitate cauterization of tissue.

12. A device for cauterizing tissue, comprising:

a flexible elongate shaft having proximal and distal ends;

a jaw pivotally coupled to the distal end of the flexible elongate shaft; and

an electrode extending distally from the distal end of the flexible elongate shaft such that the jaw and the electrode are adapted to engage tissue therebetween.

13. The device of claim 12, wherein the electrode is disposed on a distal end of a probe.

14. The device of claim 13, wherein the probe is disposed through a lumen extending through the elongate shaft, the distal end of the probe adapted to extend distally from the lumen.

15. The device of claim 16, wherein the probe is slidably disposed through the lumen.

16. The device of claim 12, further comprising an articulating mechanism extending through the elongate shaft and being effective to move the jaw between first and second positions.

17. The device of claim 16, wherein the jaw includes tissue-engaging features disposed thereon and adapted to engage tissue when the jaw is in the second position.

18. The device of claim 16, wherein the jaw extends substantially parallel to the flexible elongate member in the first position, and wherein the jaw is angled toward the probe in the second position.

19. The device of claim 16, wherein a proximal end of the articulating mechanism is coupled to a control member that is adapted to control movement of the articulating jaw between the first and second positions.

20. The device of claim 19, further comprising a handle coupled to a proximal end of the flexible elongate shaft, the control member being disposed on the handle.

21. The device of claim 20, wherein the control member is adapted to apply a substantially constant force to the jaw when the jaw is in the second position.

22. The device of claim 16, wherein the articulating mechanism comprises at least one cable with a proximal end coupled to a handle and a distal end coupled to the jaw.

23. A method of cauterizing tissue, comprising:

inserting a flexible elongate shaft through a body lumen;

positioning a distal end of a probe extending from a distal end of the flexible elongate shaft in contact with tissue to be cauterized;

articulating a jaw coupled to the distal end of the flexible elongate shaft to grasp the tissue between the jaw and the distal end of the probe; and

delivering energy to the distal end of the probe to cauterize the tissue.

24. The method of claim 23, wherein articulating the jaw comprises axially moving an articulating mechanism extending through the elongate shaft and coupled to the jaw.

25. The method of claim 23, further comprising applying a predetermined force to tissue grasped between the distal end of the probe and the jaw.

26. The method of claim 25, wherein the predetermined force is in the range of 50 to 100 grams.

27. The method of claim 23, wherein the distal end of the probe is positioned within the stomach.