Combination wire electrode and tube electrode polypectomy device

• US 8,298,243 B2
• Filed: 07/30/2007
• Issued: 10/30/2012
• Est. Priority Date: 07/30/2007
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Carlton, John, Artale, Ryan
• Primary Examiner(s): Severson, Ryan
• Assistant Examiner(s): CRONIN, ASHLEY L
• Application Number:
  US11/881,847
• Publication Number:
  US 20090036899A1
• Time in Patent Office: 1,919 Days
• Field of Search: 606 37- 41, 606 45- 52, 606/110, 606/113, 606/127, 606/114
• US Class Current: 606/113
• CPC Class Codes: A61B 17/32056 Surgical snare instruments for removing or smashing calculi A61B2017/2212; tonsillotomes A61B17/26
• CPC Class Codes: A61B 18/14 Probes or electrodes therefor
• CPC Class Codes: A61B 18/1447 wherein sliding surfaces cause opening/closing of the end effectors
• CPC Class Codes: A61B 2018/1407 Loop
• CPC Class Codes: A61B 2018/141 Snare
• CPC Class Codes: A61B 2018/144 Wire

Abstract

A device for removing polyps is provided and includes a tubular member having proximal and distal ends. The distal end of the tubular member includes a first electrode extending thereacross. The first electrode defines at least one opening therein. The polyp removal device further includes a snare portion operably extending from within the distal end of the tubular member and through at least one opening defined in the first electrode. The tubular member is configured to deliver electrosurgical energy between the first electrode and the snare portion. The polyp removal device further includes a handle portion operatively extending from within the proximal end of the tubular member. The snare portion may include a second electrode. The snare portion and the first electrode are configured to grasp and seal a polyp therebetween. The first and second electrodes may be independently activated.

Claims

1. A polyp removal device comprising:

a tubular member having proximal and distal ends and defining a lumen, said distal end including a first electrode extending across said lumen, said first electrode defining a pair of spaced apart openings therein; and

a snare portion operably extending from within said distal end of said tubular member and through said pair of spaced apart openings defined in said first electrode, wherein the snare portion is electrically insulated from the first electrode, said tubular member configured for delivering electrosurgical energy between said first electrode and said snare portion.

2. The polyp removal device of claim 1, further comprising a handle portion operatively extending from within said proximal end of said tubular member.

3. The polyp removal device of claim 2 wherein the handle portion is configured for operable engagement by a user.

4. The polyp removal device of claim 2, wherein said snare portion is retracted within said tubular member upon retraction of said handle portion relative to said tubular member.

5. The polyp removal device of claim 1, wherein the snare portion includes a second electrode.

6. The polyp removal device of claim 5, wherein said removal device is configured to grasp a polyp between said first and second electrodes.

7. The polyp removal device of claim 5, wherein said first and second electrodes may be independently activated.

8. The polyp removal device of claim 5, further including an electrosurgical generator.

9. The polyp removal device of claim 8, wherein the electrodes are electrically connected to the electrosurgical generator.

10. The polyp removal device of claim 1, wherein the snare portion and said first electrode are configured to grasp a polyp therebetween.

11. The polyp removal device of claim 1, wherein said snare portion further includes an electrode mounting member configured for operable engagement with said distal end of said tubular member.

12. The polyp removal device of claim 1, further including insulation between said snare portion and said each of said spaced apart openings formed in said first electrode.

13. The polyp removal device of claim 1, wherein said snare portion is configured to be retracted within said tubular member.

14. The polyp removal device of claim 1, wherein the first electrode extends diametrically across said lumen of said tubular member.

15. A polyp removal device comprising:

a tubular member having proximal and distal ends and defining a lumen, said distal end including a first electrode extending across said lumen, said first electrode defining first and second spaced apart openings therein;

a handle portion operatively extending from said proximal end of said tubular member; and

a snare portion slidably supported within said lumen of said tubular member and operably extending from said distal end of said tubular member and through said first and second spaced apart openings defined in said first electrode, wherein at least a section of said snare portion defines a second electrode, the second electrode being electrically insulated from the first electrode, wherein said tubular member is configured to deliver electrosurgical energy to said first and second electrodes.

16. The polyp removal device of claim 15, wherein said snare portion is retractable within said tubular member.

17. The polyp removal device of claim 15, wherein said first and second electrodes may be independently activated.

18. A method of removing a polyp comprising the steps of:

providing a polyp removal device including;

a tubular member having proximal and distal ends and defining a lumen, said distal end including a first electrode extending across said lumen, said first electrode defining a pair of spaced apart openings therein; and

a snare portion operably extending from within said distal end of said tubular member and through said pair of spaced apart openings defined in said first electrode, said tubular member configured for delivering electrosurgical energy through said first electrode independent of delivery of electrosurgical energy to said snare portion;

extending said snare portion relative to said tubular member;

looping said snare portion about a portion of a polyp;

retracting said snare portion relative to said tubular member to ensnare said portion of said polyp; and

activating said first electrode.

19. The method of claim 18, wherein said snare portion further includes a second electrode.

20. The method of claim 19, further including the step of:

activating at least one of said first electrode and said second electrode following retraction of said snare portion relative to said tubular member.