# US 10,245,052 B2 · Systems, devices, and methods for tissue extraction > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,245,052 B2 - Document ID: US10245052B2 - Status: Granted - Kind: B2 - Application number: 14/554,610 - Filed: 2014-11-26 - Published: 2015-05-28 - Granted: 2019-04-02 - Earliest claimed: 2013-11-27 - Assignees: Boston Scientific Scimed, Inc. - Applicants: Boston Scientific Scimed, Inc. - Inventors: Ronald Ciulla; Kenneth J. Daignault - Web page: https://patentgrep.com/patent/US10245052B2 ## CPC - A61B 17/22031: {Gripping instruments, e.g. forceps, for removing or smashing calculi (A61B17/221 takes precedence)} - A61B 1/05: characterised by the image sensor, e.g. camera, being in the distal end portion - A61B 1/307: for the urinary organs, e.g. urethroscopes or cystoscopes - 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)} - A61B 90/30: Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure - A61B 90/37: {Surgical systems with images on a monitor during operation} - A61B 2017/00274: {Prostate operation, e.g. prostatectomy, turp, bhp treatment} - A61B 2017/00858: {high friction or non-slip} - A61B 2017/2212: {having a closed distal end, e.g. a loop} - A61B 2017/2215: {having an open distal end} - A61B 2018/00547: {Prostate} - A61B 2018/00601: {Cutting} - A61B 2018/00982: {combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes} - A61B 2018/20361: {with redirecting based on sensed condition, e.g. tissue analysis or tissue movement} - A61B 2018/2253: {characterised by additional functions, e.g. surface cooling or detecting pathological tissue} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract Medical devices, systems, and related methods of use are disclosed. The systems may comprise a sheath for insertion into a body lumen and an extraction tool for passage through the sheath, wherein the extraction tool may include a handle, an end effector, and an optical device. Methods disclosed herein include introducing an extraction tool into a urethra for retrieving and removing tissue from the body, e.g., with an end effector, without morcellating the excised tissue. ## Claims ### Claim 1 A method of removing tissue from a body, the method comprising: introducing an extraction tool into a urethra, the extraction tool extending between a proximal end and a distal end, wherein the distal end includes an expandable end effector that forms an at least partially conical shape with a solid circumferential wall in an expanded state, and wherein the extraction tool includes a central channel with an interior diameter greater than about 20 Fr; grasping the tissue with the end effector to enclose the tissue within the expandable end effector in the expanded state such that the tissue is surrounded by the solid circumferential wall of the end effector; and without morcellating the tissue, removing the extraction tool from the body with the tissue enclosed. ### Claim 2 (depends on 1) The method of claim 1, wherein the extraction tool includes an optical device, wherein at least a portion of the optical device is integrated into the distal end of the extraction tool, and wherein the method further comprises viewing the tissue with the optical device. ### Claim 3 (depends on 2) The method of claim 2, wherein the optical device includes an eyepiece operably connected to a remote imaging system. ### Claim 4 (depends on 1) The method of claim 1, wherein grasping the tissue includes deploying the end effector from a collapsed state into the expanded state, and grasping the tissue with the end effector in the expanded state. ### Claim 5 (depends on 4) The method of claim 4, wherein the end effector is self-expanding. ### Claim 6 (depends on 4) The method of claim 4, wherein the extraction tool includes a handle and, wherein the handle is movable proximally or distally to control a position of the end effector within the body. ### Claim 7 (depends on 1) The method of claim 1, wherein an inner surface of the end effector includes a texture for grasping the tissue, and wherein an outer surface of the end effector includes a hydrophilic material or coating. ### Claim 8 (depends on 1) The method of claim 1, further comprising securing the tissue with the end effector after grasping. ### Claim 9 (depends on 1) The method of claim 1, wherein the tissue includes prostate tissue. ### Claim 10 (depends on 1) The method of claim 1, wherein the tissue includes loose tissue located in a bladder. ### Claim 11 (depends on 1) The method of claim 1, further comprising an initial step of introducing a sheath into the urethra, and then introducing the extraction tool into the sheath. ### Claim 12 (depends on 11) The method of claim 11, wherein pulling the extraction tool proximally through the sheath for removal secures the tissue within the extraction tool. ### Claim 13 (depends on 11) The method of claim 11, wherein the sheath includes an inlet for introducing a fluid into the sheath. ### Claim 14 (depends on 13) The method of claim 13, further comprising introducing a saline solution into the sheath through the inlet. ### Claim 15 (depends on 1) The method of claim 1, wherein the central channel includes an interior diameter greater than about 26 Fr. ### Claim 16 A method of performing holmium laser enucleation of the prostate, the method comprising: excising prostate tissue with a laser apparatus; moving the excised tissue into a bladder; introducing an extraction tool into a urethra and advancing the extraction tool toward the bladder, the extraction tool extending between a proximal end and a distal end, wherein the distal end includes an expandable end effector that forms an at least partially conical shape with a solid circumferential wall in an expanded state, and wherein the extraction tool includes a channel with an interior diameter greater than about 26 Fr; grasping the excised tissue with the end effector to enclose the tissue within the expandable end effector in the expanded state such that the tissue is surrounded by the solid circumferential wall of the end effector; and removing the extraction tool from the body with the excised tissue enclosed without morcellating the tissue. ### Claim 17 (depends on 16) The method of claim 16, wherein the extraction tool includes an optical device, wherein at least a portion of the optical device is integrated into the distal end of the extraction tool, and wherein the method further comprises viewing the excised tissue with the optical device. ### Claim 18 (depends on 16) The method of claim 16, wherein grasping the excised tissue includes deploying the end effector from a collapsed state into the expanded state, and grasping the excised tissue with the end effector when in the expanded state. ### Claim 19 (depends on 16) The method of claim 16, wherein the channel includes an interior diameter between about 26 Fr and about 27 Fr.