Polyp Removal Device and Method of Use

• US 20100036375A1
• Filed: 01/30/2009
• Published: 02/11/2010
• Est. Priority Date: 01/31/2008
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Regadas, F. Sergio P.
• Granted Patent: US 8,328,803 B2
• Time in Patent Office: Days
• US Class Current: 606/39
• CPC Class Codes: A61B 17/221 Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions surgical snare instruments A61B17/32056
• CPC Class Codes: A61B 17/24 for use in the oral cavity, larynx, bronchial passages or nose for medical inspection of cavities or tubes in the body A61B1/00; Tongue scrapers
• CPC Class Codes: A61B 17/32 Surgical cutting instruments A61B18/042 takes precedence; suture cutters A61B17/0467; instruments for ligaturing or cutting A61B17/128; instruments for rupturing the amniotic membrane A61B17/4208; specially adapted knives for eye surgery A61F9/0133
• CPC Class Codes: A61B 17/32056 Surgical snare instruments for removing or smashing calculi A61B2017/2212; tonsillotomes A61B17/26
• CPC Class Codes: A61B 18/00 Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body eye surgery A61F9/007; ear surgery A61F11/00
• CPC Class Codes: A61B 18/14 Probes or electrodes therefor
• CPC Class Codes: A61B 18/18 by applying electromagnetic radiation, e.g. microwaves radiation therapy A61N5/00
• CPC Class Codes: A61B 18/20 using laser
• 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 2018/00482 Digestive system
• CPC Class Codes: A61B 2018/00571 for achieving a particular surgical effect
• CPC Class Codes: A61B 2018/00607 Coagulation and cutting with the same instrument
• CPC Class Codes: A61B 2018/00619 Welding
• CPC Class Codes: A61B 2018/1407 Loop
• CPC Class Codes: A61B 2018/141 Snare

Abstract

A device and system for removing tissue such as polyps is provided and includes a tubular member having proximal and distal ends, a snare portion operably extending from within the distal end of the tubular member and including first and second electrodes configured to treat tissue therebetween, the snare portion further including a cutting member for severing the treated tissue. The tissue removal device may further include a handle portion operatively extending from within the proximal end of the tubular member. The handle portion may be configured for operable engagement by a user and the cutting member may extend between distal ends of the first and second electrodes.

Claims

1. A tissue removal system, comprising:

a tubular member having proximal and distal ends;

a snare portion operably extendable from the distal end of the tubular member and including first and second electrodes configured to treat tissue therebetween, the snare portion further including a cutting member positioned between the first and second electrodes for severing the treated tissue.

2. The tissue removal system of claim 1, further comprising a handle portion operatively coupled to the proximal end of the tubular member.

3. The tissue removal system of claim 2, wherein the handle portion is configured for operable engagement by a user.

4. The tissue removal system of claim 1, wherein the cutting member is configured to only cut when pulled in a proximal direction.

5. The tissue removal system of claim 1, wherein the tissue is a polyp and the first and second electrodes are configured to grasp a stalk of the polyp.

6. The tissue removal system of claim 2, wherein the first and second electrodes are hingedly attached to the cutting member.

7. The tissue removal system of claim 1, wherein the snare portion is configured to be retracted within the tubular member.

8. The tissue removal system of claim 1, wherein the first and second electrodes are each formed from a tissue contacting surface and an insulative body portion.

9. The tissue removal system of claim 1, further including an electrosurgical generator.

10. The tissue removal system of claim 9, wherein the first and second electrodes are electrically coupled to the electrosurgical generator and the generator is configured to deliver energy to the first and second electrodes in a bipolar manner.

11. The tissue removal system of claim 1, wherein the distal end of the tubular member includes a spacer member for preventing the first and second electrodes from contacting one another.

12. The tissue removal system of claim 1, wherein at least one of the first and second electrodes includes a spacer mounted thereon for preventing contact between the first and second electrodes.

13. A tissue removal system, comprising:

a generator configured to generate and deliver energy to a tissue removal device, the tissue removal device comprising;

a tubular member having proximal and distal ends;

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

a snare portion slidably supported within the tubular member and configured to extend from the distal end of the tubular member, the snare portion including first and second electrodes operably mounted thereto for receiving energy from the generator for treating tissue therebetween;

a cutting member positioned between the first and second electrodes and configured to sever the treated tissue; and

wherein at least one of the first and second electrodes includes at least one spacer mounted thereon for preventing contact between the first and second electrodes.

14. The tissue removal system of claim 13, wherein the snare portion is formed from a non-conductive material.

15. The tissue removal system of claim 13, wherein the energy is selected from the group consisting of radiofrequency, ultrasonic, microwave, and laser.

16. A method of removing tissue, comprising:

providing a tissue removal device including a snare portion, first and second electrodes operably mounted thereto, and a cutting member positioned between the first and second electrodes;

extending the snare portion to surround a tissue mass of a body;

retracting the snare portion to capture the tissue mass between the first and second electrodes;

delivering energy to the first and second electrodes; and

further retracting the snare portion to sever the tissue mass from the body.

17. The method of claim 16, wherein delivering energy to the first and second electrodes further includes sealing the tissue mass.

18. The method of claim 17, further comprising:

monitoring electrical properties of the tissue mass during energy delivery;

detecting a predetermined condition; and

signaling that the tissue mass is ready to be severed.