# US 11,896,762 B2 · Endotracheal tube system and method for maintaining airway patency > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,896,762 B2 - Document ID: US11896762B2 - Status: Granted - Kind: B2 - Application number: 16/856,205 - Filed: 2020-04-23 - Published: 2021-10-28 - Granted: 2024-02-13 - Earliest claimed: 2020-04-23 - Applicants: Avent, Inc. - Inventors: Mark Lavigne; Edward B. Madsen - Web page: https://patentgrep.com/patent/US11896762B2 ## CPC - A61M 16/0427: {with removable and re-insertable liner tubes, e.g. for cleaning} - A61M 16/0463: {combined with suction tubes, catheters or the like; Outside connections} - A61M 16/0465: {Tracheostomy tubes; Devices for performing a tracheostomy; Accessories therefor, e.g. masks, filters} - A61M 16/0688: {by means of an adhesive} - A61M 39/16: having provision for disinfection or sterilisation {(A61M39/143 takes precedence)} - A61M 16/0434: {Cuffs} - A61M 16/0833: {T- or Y-type connectors, e.g. Y-piece} - A61M 2202/203: Bacteria - A61M 2205/0238: the material being a coating or protective layer - A61M 2209/04: Tools for specific apparatus - A61M 2209/10: Equipment for cleaning - 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 endotracheal tube airway patency system and method are provided. The system includes an endotracheal tube having a tube body having a proximal end, a distal end, an inner surface, a distal opening disposed at the distal end of the tube body, a proximal opening disposed at the proximal end of the tube body, and an airflow-effacing surface disposed within the tube body. The airflow-effacing surface includes a telescoping inner sleeve configured to be removed from the endotracheal tube body. The system further includes a tool for removal of the telescoping internal sleeve from the endotracheal tube body. The tool includes an elongated body having a proximal end and a distal end; a handle located at the proximal end of the elongated body; and at least one extension member disposed at the distal end of the elongated body. The at least one extension member is configured to couple to the telescoping internal sleeve for removal of the telescoping internal sleeve from the endotracheal tube body. ## Claims ### Claim 1 A tool for removal of a telescoping internal sleeve from an endotracheal tube, the tool comprising: an elongated body having a proximal end and a distal end; a handle located at the proximal end of the elongated body; and at least one extension member disposed at the distal end of the elongated body, the at least one extension member comprising a coupling portion at a distal end of the at least one extension member, the coupling portion comprising a magnetic attachment configured to couple to a magnetic receiving tab of the telescoping internal sleeve of the endotracheal tube for removal of the telescoping internal sleeve from the endotracheal tube. ### Claim 2 (depends on 1) The tool of claim 1, wherein the at least one extension member comprises three extension members. ### Claim 3 (depends on 1) The tool of claim 1, wherein the handle comprises a dial configured to rotate, wherein rotation of the dial in a first direction causes the at least one extension member to be moved into an open position and wherein rotation of the dial in a second direction causes the at least one extension member to be moved into a closed position. ### Claim 4 (depends on 3) The tool of claim 3, wherein in the open position, the at least one extension member is configured to initiate coupling to the telescoping internal sleeve. ### Claim 5 (depends on 3) The tool of claim 3, wherein when the dial is rotated from the open position to the closed position, the at least one extension member is configured to retain the telescoping internal sleeve to retract the telescoping internal sleeve from the endotracheal tube. ### Claim 6 (depends on 1) The tool of claim 1, wherein the at least one extension member comprises a hook extending from a distal end of the at least one extension member. ### Claim 7 (depends on 6) The tool of claim 6, further comprising a protrusion extending from the distal end of the at least one extension member, wherein the hook extends from the protrusion. ### Claim 8 (depends on 6) The tool of claim 6, wherein the hook is configured to couple to a receiving tab of the telescoping internal sleeve. ### Claim 9 (depends on 6) The tool of claim 6, wherein the hook comprises a magnetic hook. ### Claim 10 An endotracheal tube airway patency system comprising: an endotracheal tube comprising a tube body having a proximal end, a distal end, an inner surface, a distal opening disposed at the distal end of the tube body, a proximal opening disposed at the proximal end of the tube body, and an airflow-effacing surface disposed within the tube body, wherein the airflow-effacing surface comprises a telescoping internal sleeve configured to be removed from the endotracheal tube body, the telescoping internal sleeve having a magnetic receiving tab; and a tool for removal of a telescoping internal sleeve from the endotracheal tube body, the tool comprising: an elongated body having a proximal end and a distal end; a handle located at the proximal end of the elongated body; and at least one extension member disposed at the distal end of the elongated body, the at least one extension member comprising a coupling portion at a distal end of the at least one extension member, the coupling portion comprising a magnetic attachment configured to couple to the magnetic receiving tab of the telescoping internal sleeve of the endotracheal tube for removal of the telescoping internal sleeve from the endotracheal tube. ### Claim 11 (depends on 10) The system of claim 10, wherein the telescoping internal sleeve comprises one or more layers which are independently removable from the endotracheal tube body. ### Claim 12 (depends on 10) The system of claim 10, wherein the telescoping internal sleeve is collapsible. ### Claim 13 (depends on 10) The system of claim 10, wherein the telescoping internal sleeve is disposed adjacent to or in contact with the inner surface of the endotracheal tube body to maintain patency of the endotracheal tube. ### Claim 14 (depends on 10) The system of claim 10, wherein removal of the telescoping internal sleeve exposes a sterile surface on the inner surface of the endotracheal tube body.