# US 10,478,208 B2 · Endoscopic submucosal dissection hood > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,478,208 B2 - Document ID: US10478208B2 - Status: Granted - Kind: B2 - Application number: 15/332,433 - Filed: 2016-10-24 - Published: 2017-04-27 - Granted: 2019-11-19 - Earliest claimed: 2015-10-23 - Assignees: Boston Scientific Scimed, Inc. - Applicants: Boston Scientific Scimed, Inc. - Inventors: Matthew Robert Jagelski; Shawn Ryan; Celine Mee Ling Chin; Norman C. May; Catherine Shimin Yee; Paul Smith; Ray Tong - Web page: https://patentgrep.com/patent/US10478208B2 ## CPC - A61B 17/320016: {Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes (A61B10/0233, A61B17/29, A61B17/3207 take precedence)} - A61B 1/00087: {Tools (A61B17/00234 takes precedence)} - A61B 1/00089: {Hoods} - A61B 1/00101: {the distal tip features being detachable} - A61B 1/0014: {Fastening element for attaching accessories to the outside of an endoscope, e.g. clips, clamps or bands} - A61B 17/00234: {for minimally invasive surgery (A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence)} - A61B 17/29: Forceps for use in minimally invasive surgery - A61B 18/02: by cooling, e.g. cryogenic techniques - A61B 18/1492: {having a flexible, catheter-like structure, e.g. for heart ablation (A61B18/1477 takes precedence)} - A61N 7/00: Ultrasound therapy (lithotripsy A61B17/22, A61B17/225; massage using supersonic vibration A61H23/00 {; using ultrasound for introducing media into the body A61M37/0092}) - A61B 2017/00269: {endoscopic mucosal resection EMR} - A61B 2017/00296: {mounted on an endoscope} - A61B 2017/00331: {with preformed bends} - A61B 2018/00601: {Cutting} - A61B 2018/00982: {combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes} - A61B 2018/0212: {using an instrument inserted into a body lumen, e.g. catheter} - A61B 2018/1412: {Blade} - A61N 2007/0043: {intra-cavitary} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - A61N: ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY (measurement of bioelectric currents A61B; surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body A61B18/00; anaesthetic apparatus in general A61M; incandescent lamps H01K; infrared radiators for heating H05B) ## Abstract The present disclosure relates to the field of endoscopy. In particular, the present disclosure relates to systems and methods suitable for resecting or dissecting large areas of mucosal or submucosal tissue. The system may apply tension to and continuously manipulate mucosal tissue such that large lesions may be resected or dissected by a cutting element disposed at the distal end of an endoscope. ## Claims ### Claim 1 An endoscopic hood configured to be disposed at a distal end of an endoscope comprising an endoscope body and a working channel disposed within the endoscope body, the endoscopic hood comprising: a first portion comprising a proximal end, a distal end and first and second lumens extending therebetween; a second portion extending from the distal end of the first portion, said second portion comprising a curved wall with an open distal end and defining a working area adjacent a concave surface of the curved wall and the first lumen; and a support member extending into the first lumen adjacent to the curved wall; wherein the first lumen is configured to receive a portion of a shaft of a first device disposed in the working channel of the endoscope, and wherein the second lumen is configured to slidably and rotationally receive a portion of a shaft of a second device disposed along an outer surface of the endoscope. ### Claim 2 (depends on 1) The endoscopic hood of claim 1, wherein the curved wall comprises one or more of a partial hollow conic section, a partial hollow cylinder or a partial hollow sphere. ### Claim 3 (depends on 1) The endoscopic hood of claim 1, wherein the curved wall comprises a cross-section in the form of an arc. ### Claim 4 (depends on 3) The endoscopic hood of claim 3, wherein the arc ranges from approximately 90 degrees to approximately 180 degrees. ### Claim 5 (depends on 1) The endoscopic hood of claim 1, wherein the curved wall is formed from a transparent material. ### Claim 6 (depends on 1) The endoscopic hood of claim 1, wherein the support member defines an aperture having a non-circular cross-section. ### Claim 7 An endoscopic system comprising: an endoscope comprising an elongate body having a proximal end, a distal end and a working channel disposed within the elongate body; an endoscopic hood coupled to the distal end of the endoscope, the endoscopic hood comprising: a first portion comprising a proximal end, a distal end and first and second lumens extending therebetween, wherein the first lumen is in communication with the working channel of the endoscope, a second portion extending from the distal end of the first portion, said second portion comprising a curved wall with an open distal end and defining a working area adjacent a concave surface of the curved wall and the first lumen, and a support member extending into the first lumen adjacent to the curved wall; a first shaft having a proximal end and a distal end, wherein a portion of the first shaft is disposed within the working channel and the first lumen; and a second shaft having a proximal end and a distal end, wherein a portion of the second shaft is slidably and rotationally disposed along an outer surface of the elongate body and extends through the second lumen. ### Claim 8 (depends on 7) The endoscopic system of claim 7, wherein the curved wall comprises one or more of a partial hollow conic section, a partial hollow cylinder or a partial hollow sphere. ### Claim 9 (depends on 7) The endoscopic system of claim 7, wherein the curved wall comprises a cross-section in the form of an arc. ### Claim 10 (depends on 7) The endoscopic system of claim 7, wherein the support member defines an aperture having a non-circular cross-section. ### Claim 11 (depends on 10) The endoscopic system of claim 10, wherein the aperture of the support member is configured to slidably receive the first shaft. ### Claim 12 (depends on 7) The endoscopic system of claim 7, wherein the first shaft is slidably, but not rotationally, disposed within the working channel and first lumen. ### Claim 13 (depends on 7) The endoscopic system of claim 7, wherein the distal end of the first shaft includes a shape memory material that is configured to assume a bent configuration when unconstrained by an over-sheath or core wire. ### Claim 14 (depends on 7) The endoscopic system of claim 7, wherein the distal end of the first shaft includes a tissue cutting element, and wherein the distal end of the second shaft includes a tissue engaging element. ### Claim 15 (depends on 14) The endoscopic system of claim 14, wherein rotating a proximal end of the second shaft in a first direction moves the tissue engaging element towards the working area, and rotating a proximal end of the second shaft in a second direction moves the tissue engaging element away from the working area. ### Claim 16 (depends on 14) The endoscopic system of claim 14, wherein the tissue cutting element is configured to bend upon actuation by an operation. ### Claim 17 (depends on 7) The endoscopic system of claim 7, wherein the curved wall comprises a cross-section in the form of an arc. ### Claim 18 (depends on 17) The endoscopic system of claim 17, wherein the arc ranges from approximately 90 degrees to approximately 180 degrees. ### Claim 19 (depends on 7) The endoscopic system of claim 7, wherein the curved wall is formed from a transparent material. ### Claim 20 A method of resecting or dissecting tissue, comprising: a) inserting, into a body lumen of a patient, an endoscopic system comprising: an endoscope comprising an elongate body having a proximal end and a distal end and a working channel disposed within the elongate body; an endoscopic hood coupled to the distal end of the endoscope, the endoscopic hood comprising: a first portion comprising a proximal end, a distal end and first and second lumens extending therebetween, wherein the first lumen is in communication with the working channel of the endoscope; and a second portion extending from the distal end of the first portion, said second portion comprising a curved wall with an open distal end and defining a working area adjacent a concave surface of the curved wall and the first lumen; a first shaft having a proximal end and a distal end, wherein a portion of the first shaft is disposed within the working channel and the first lumen; and a second shaft having a proximal end and a distal end, wherein a portion of the second shaft is slidably and rotationally disposed along an outer surface of the elongate body and extends through the second lumen, wherein the distal end of the first shaft includes a tissue cutting element, and wherein the distal end of the second shaft includes a tissue engaging element; b) positioning the endoscopic hood over the surface of a target tissue; and c) resecting or dissecting the target tissue with said tissue cutting element while engaging the tissue with said tissue engaging element.