# US 11,992,185 B2 · Insertion instrument, endoscope > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,992,185 B2 - Document ID: US11992185B2 - Status: Granted - Kind: B2 - Application number: 17/030,861 - Filed: 2020-09-24 - Published: 2021-03-11 - Granted: 2024-05-28 - Earliest claimed: 2018-03-29 - Assignees: Olympus Corporation - Applicants: Olympus Corporation - Inventors: Kimihiko Naito - Web page: https://patentgrep.com/patent/US11992185B2 ## CPC - A61B 1/0016: {using motor drive units} - A61B 1/00128: {mechanical, e.g. for tubes or pipes} - A61B 1/00154: {using guiding arrangements for insertion} - G02B 23/24: Instruments {or systems} for viewing the inside of hollow bodies, e.g. fibrescopes - A61M 25/0113: {Mechanical advancing means, e.g. catheter dispensers} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract An insertion instrument includes an insertion portion, a tubular member that rotates about a longitudinal axis by a transmitted driving force, a flange portion that holds a position of the tubular member at an outer periphery of the insertion portion, a tapered portion having an outer diameter that gradually decreases toward a proximal end side, and an adhesive layer formed to smoothly connect a proximal end portion of the tapered portion and an outer periphery of the insertion portion. ## Claims ### Claim 1 An insertion instrument comprising: an insertion portion extending along a longitudinal axis; and a tubular body configured to be detachably attached to the insertion portion, the tubular body being configured to rotate about the longitudinal axis; wherein the insertion portion comprising: a flange configured to maintain a longitudinal position of the tubular body relative to the insertion portion; a tapered surface provided proximally relative to the flange, an outer diameter of the tapered surface gradually decreasing in a proximal direction, a proximal end of the tapered surface being radially separated from an outer periphery of the insertion portion to form a step; and an adhesive layer formed to continuously connect the proximal end of the tapered surface and the outer periphery of a portion of the insertion portion adjacent to the tapered surface, the adhesive layer being inclined relative to the longitudinal axis, the adhesive layer filling the step. ### Claim 2 (depends on 1) The insertion instrument according to claim 1, wherein the adhesive layer covers a bobbin portion provided at the outer periphery of the insertion portion. ### Claim 3 (depends on 1) The insertion instrument according to claim 1, wherein an outer surface of the adhesive layer includes a conical surface, and an inclination of the conical surface relative to the longitudinal axis is less than an inclination of the tapered surface relative to the longitudinal axis. ### Claim 4 An insertion portion for use with an endoscope and for use with a tubular body configured to be rotatably disposed on the insertion portion, the insertion portion comprising: an elongated body extending along a longitudinal axis; a flange configured to maintain a longitudinal position of the tubular body relative to the elongated body; a tapered surface provided proximally relative to the flange, an outer diameter of the tapered surface gradually decreasing in a proximal direction, a proximal end of the tapered surface being radially separated from an outer periphery of the insertion portion to form a step; and an adhesive layer formed to continuously connect the proximal end of the tapered surface and the outer periphery of a portion of the elongated body adjacent to the tapered surface, the adhesive layer being inclined relative to the longitudinal axis, the adhesive layer filling the step. ### Claim 5 (depends on 1) An endoscope comprising the insertion instrument according to claim 1. ### Claim 6 (depends on 4) An endoscope comprising the insertion portion according to claim 4. ### Claim 7 (depends on 1) The insertion instrument according to claim 1, wherein a proximal end portion of the adhesive layer is continuously connected to the outer periphery of the insertion portion. ### Claim 8 (depends on 4) The insertion instrument according to claim 4, wherein a proximal end portion of the adhesive layer is continuously connected to the outer periphery of the elongated body. ### Claim 9 (depends on 1) The insertion instrument according to claim 1, further comprising a convex portion formed circumferentially on the outer periphery of the insertion portion. ### Claim 10 (depends on 9) The insertion instrument according to claim 9, wherein the convex portion is formed proximally relative to a bobbin portion provided at the outer periphery of the insertion portion. ### Claim 11 (depends on 9) The insertion instrument according to claim 9, wherein an outer diameter of the convex portion is larger than other portions of the insertion portion. ### Claim 12 (depends on 9) The insertion instrument according to claim 9, wherein the adhesive layer is disposed between a proximal portion of the tapered surface and a distal portion of the convex portion. ### Claim 13 (depends on 9) The insertion instrument according to claim 9, wherein a proximal end portion of the adhesive layer is continuously connected to a distal end portion of the convex portion. ### Claim 14 An insertion instrument comprising: an insertion portion extending along a longitudinal axis; and a tubular body configured to be detachably attached to the insertion portion, the tubular body being configured to rotate about the longitudinal axis; wherein the insertion portion comprising: a flange configured to maintain a longitudinal position of the tubular body relative to the insertion portion; a tapered surface provided proximally relative to the flange, an outer diameter of the tapered surface gradually decreasing in a proximal direction; and an adhesive layer formed to continuously connect a proximal end of the tapered surface and an outer periphery of a portion of the insertion portion, the adhesive layer being inclined relative to the longitudinal axis, wherein a distal end of the adhesive layer is provided distally relative to the proximal end of the tapered surface. ### Claim 15 (depends on 2) The insertion instrument according to claim 2, wherein a distal end of the bobbin portion is provided distally relative to the proximal end of the tapered surface. ### Claim 16 (depends on 2) The insertion instrument according to claim 2, wherein a proximal end of the bobbin portion is provided proximally relative to the proximal end of the tapered surface. ### Claim 17 (depends on 1) The insertion instrument according to claim 1, wherein the flange and the tapered surface have an annular shape. ### Claim 18 (depends on 1) The insertion instrument according to claim 1, wherein the adhesive layer covers a bobbin portion provided at the outer periphery of the insertion portion; and the bobbin portion is disposed in the step.