Apparatus, system, and method for performing an electrosurgical procedure

• US 8,016,827 B2
• Filed: 10/09/2008
• Issued: 09/13/2011
• Est. Priority Date: 10/09/2008
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Chojin, Edward M.
• Primary Examiner(s): Stigell; Theodore
• Assistant Examiner(s): CARPENTER, WILLIAM R
• Application Number:
  US12/248,104
• Publication Number:
  US 20100094286A1
• Time in Patent Office: 1,069 Days
• Field of Search: 606/49, 606/50, 606/51, 606/52, 606/205, 606/206, 606/207, 606/208, 606/209
• US Class Current: 606/51
• CPC Class Codes: A61B 18/1442 Probes having pivoting end effectors, e.g. forceps
• CPC Class Codes: A61B 2018/00345 Vascular system
• CPC Class Codes: A61B 2018/00404 Blood vessels other than those in or around the heart
• CPC Class Codes: A61B 2018/00619 Welding
• CPC Class Codes: A61B 2018/0063 Sealing
• CPC Class Codes: A61B 2018/126 bipolar
• CPC Class Codes: A61B 2018/1412 Blade
• CPC Class Codes: A61B 2018/1455 having a moving blade for cutting tissue grasped by the jaws
• CPC Class Codes: A61B 2018/1861 with an instrument inserted into a body lumen or cavity, e.g. a catheter

Abstract

A bipolar forceps includes a housing having a shaft extending therefrom including an end effector assembly at a distal end thereof. The end effector assembly has a wheel assembly opposing a jaw member and having a pair of opposing wheels configured to facilitate movement of the wheel assembly relative to the jaw member. A drive rod is operably coupled at a proximal end to a movable handle and at a distal end to the wheel assembly. The movable handle is movable relative to a stationary handle to move the wheel assembly relative to the jaw member. At least one electrically conductive tissue sealing plate is disposed on each of the wheel assembly and the jaw member and is adapted to connect to an electrosurgical energy source configured to deliver electrosurgical energy to tissue held between the wheel assembly and the jaw member to effect a tissue seal.

Claims

1. A bipolar forceps, comprising:

a housing having a shaft that extends therefrom including an end effector assembly at a distal end thereof, the end effector assembly having a wheel assembly opposing a jaw member, the wheel assembly having a pair of opposing wheels configured to facilitate movement of the wheel assembly relative to the jaw member;

a drive rod operably coupled at a proximal end to a movable handle and at a distal end to the wheel assembly, the movable handle movable relative to a stationary handle to move the wheel assembly relative to the jaw member; and

at least one electrically conductive tissue sealing plate disposed on each of the wheel assembly and the jaw member, the electrically conductive tissue sealing plates adapted to connect to an electrosurgical energy source configured to deliver electrosurgical energy to tissue held between the wheel assembly and the jaw member to effect a tissue seal;

wherein the drive rod is operably coupled at a distal end to a mechanical interface disposed between the pair of wheels, the pair of wheels configured to rotate about the mechanical interface such that proximal movement of the drive rod causes rotation of the pair of wheels in a first direction to move the wheel assembly proximally relative to the jaw member, and distal movement of the drive rod causes rotation of the pair of wheels in a second direction to move the wheel assembly distally relative to the jaw member.

2. A bipolar forceps according to claim 1, wherein the electrosurgical energy source is adapted to deliver a first electrical potential to the at least one electrically conductive tissue sealing plate disposed on the wheel assembly and a second electrical potential to the at least one electrically conductive tissue sealing plate disposed on the jaw member.

3. A bipolar forceps according to claim 1, wherein the end effector assembly is configured to at least one of grasp tissue between the wheel assembly and the jaw member and selectively conduct energy through tissue held between the wheel assembly and the jaw member when the wheel assembly is in a predetermined position relative to the jaw member.

4. A bipolar forceps according to claim 1, wherein the jaw member is movable proximally and distally relative to the wheel assembly upon actuation of the movable handle.

5. A bipolar forceps according to claim 1, further comprising a trigger disposed within the housing and in electromechanical cooperation with the source of electrosurgical energy, the trigger allowing a user to selectively supply bipolar energy to each of the wheel assembly and the jaw member to effect the tissue seal.

6. A bipolar forceps according to claim 1, further comprising a rotating assembly for rotating the end effector assembly about the longitudinal axis defined through the shaft.

7. A bipolar forceps according to claim 1, further comprising a knife assembly configured to cut tissue along the tissue seal when the wheel assembly is in a predetermined position relative to the jaw member.

8. A bipolar forceps according to claim 1, wherein the movable handle is movable between a closed position to cause the drive rod to move the wheel assembly distally relative to the jaw member and an open position to cause the drive rod to move the wheel assembly proximally relative to the jaw member.

9. A bipolar forceps, comprising:

a housing having a shaft that extends therefrom including an end effector assembly at a distal end thereof the end effector assembly having a wheel assembly opposing a jaw member, the wheel assembly having a pair of opposing wheels configured to facilitate movement of the wheel assembly relative to the jaw member;

a drive rod operably coupled at a proximal end to a movable handle disposed within a housing and at a distal end to a mechanical interface disposed between the pair of wheels, the movable handle movable relative to a stationary handle disposed within the housing to cause proximal and distal movement of the drive rod, the pair of wheels configured to rotate about the mechanical interface such that proximal movement of the drive rod causes rotation of the pair of wheels in a first direction to move the wheel assembly proximally relative to the jaw member, and distal movement of the drive rod causes rotation of the pair of wheels in a second direction to move the wheel assembly distally relative to the jaw member; and

at least one electrically conductive tissue sealing plate disposed on each of the wheel assembly and the jaw member, the electrically conductive tissue sealing plates adapted to connect to an electrosurgical energy source configured to deliver electrosurgical energy to tissue held between the wheel assembly and the jaw member to effect a tissue seal.

10. A bipolar forceps according to claim 9, wherein the jaw member is movable proximally and distally relative to the wheel assembly upon actuation of the movable handle.

11. A bipolar forceps according to claim 9, wherein the electrosurgical energy source is adapted to deliver a first electrical potential to the at least one electrically conductive tissue sealing plate disposed on the wheel assembly and a second electrical potential to the at least one electrically conductive tissue sealing plate disposed on the jaw member.

12. A bipolar forceps according to claim 9, wherein the end effector assembly is configured to at least one of grasp tissue between the wheel assembly and the jaw member and selectively conduct energy through tissue held between the wheel assembly and the jaw member when the wheel assembly is in a predetermined position relative to the jaw member.

13. A bipolar forceps according to claim 9, further comprising a knife assembly configured to cut tissue along the tissue seal when the wheel assembly is in a predetermined position relative to the jaw member.

14. A bipolar forceps according to claim 9, wherein the movable handle is movable between a closed position to cause the drive rod to move the wheel assembly distally relative to the jaw member and an open position to cause the drive rod to move the wheel assembly proximally relative to the jaw member.

15. A bipolar forceps according to claim 9, wherein the movable handle is movable between a closed position to cause the jaw member to move proximally relative to the wheel assembly and an open position to cause the jaw member to move distally relative to the wheel assembly.