# US 2016/0250445 A1 · Multiple lumen assembly for use in endoscopes or other medical devices > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2016/0250445 A1 - Document ID: US20160250445A1 - Status: Published application - Kind: A1 - Application number: 15/154,046 - Filed: 2016-05-13 - Published: 2016-09-01 - Earliest claimed: 2006-04-20 - Assignees: Boston Scientific Scimed, Inc. - Applicants: Boston Scientific Scimed, Inc. - Inventors: Dennis R. Boulais - Web page: https://patentgrep.com/patent/US20160250445A1 ## CPC - A61M 25/0026: {Multi-lumen catheters with stationary elements (catheter assemblies comprising a catheter in combination with a guide tube, sheath or sleeve A61M2025/0681; catheters comprising telescoping coaxial elements A61M2025/0175)} - A61B 1/012: characterised by internal passages or accessories therefor - A61M 25/0054: {with regions for increasing flexibility} - A61B 1/0055: {Constructional details of insertion parts, e.g. vertebral elements} - A61B 1/018: for receiving instruments - A61M 2025/0034: {characterized by elements which are assembled, connected or fused, e.g. splittable tubes, outer sheaths creating lumina or separate cores} - A61M 2025/0036: {with more than four lumina} - A61M 2025/0039: {characterized by lumina being arranged coaxially} - A61M 2025/004: {characterized by lumina being arranged circumferentially} - 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)} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract An endoscope or other medical device includes a number of lumens positioned in an outer shaft. The lumens are formed as a multiple lumen assembly. In one embodiment, individual lumens are connected to each other with a sheet or webbing material. The lumen assembly is rolled or folded along its length for incorporation into the outer shaft of the medical device. The sheet or webbing material may be notched or perforated to facilitate folding the lumen assembly and/or separating individual lumens from the lumen assembly. ## Claims ### Claim at position 1 1-21. (canceled) ### Claim 22 An apparatus, comprising: a flexible sheet including a plurality of lumens and a webbing material connecting each opposing pair of the plurality of lumens, wherein the webbing material has a flexibility enhancing mechanism that allows the flexible sheet to transition from a planar configuration defining a sheet width to a circular configuration defining a central lumen with a central lumen diameter, and each of the plurality of lumens includes a lumen diameter smaller than the central lumen diameter. ### Claim 23 (depends on 22) The apparatus of claim 22, wherein the flexibility enhancing mechanism includes at least one notch. ### Claim 24 (depends on 23) The apparatus of claim 23, wherein the at least one notch penetrates less than an entire thickness of the webbing material. ### Claim 25 (depends on 24) The apparatus of claim 24, wherein the at least one notch includes a pair of opposing notches. ### Claim 26 (depends on 27) The apparatus of claim 27, wherein the pair of opposing notches allows at least one lumen of the plurality of lumens to be separated from the remainder of the plurality of lumens. ### Claim 27 (depends on 22) The apparatus of claim 22, wherein the lumen diameter of each lumen of the plurality of lumens remains constant when the flexible sheet is transitioned into the circular configuration. ### Claim 28 (depends on 22) The apparatus of claim 22, wherein the plurality of lumens and the webbing material are formed of a one-piece construction. ### Claim 29 (depends on 22) The apparatus of claim 22, wherein at least one lumen of the plurality of lumens is configured to deliver a fluid therethrough. ### Claim 30 (depends on 22) The apparatus of claim 22, wherein at least two lumens of the plurality of lumens are configured to receive a wire, and the at least two lumens are spaced oppositely of one another when the flexible sheet is transitioned into the circular configuration. ### Claim 31 An apparatus having a central longitudinal axis, the apparatus comprising: a plurality of lumens extending in a direction parallel to the central longitudinal axis, each lumen of the plurality of lumens having a lumen diameter; and a webbing material extending between each opposing pair of the plurality of lumens, wherein the plurality of lumens are spaced apart in a direction transverse to the central longitudinal axis and the webbing material has a flexibility enhancing mechanism to allow formation a central lumen having a central lumen diameter greater than the lumen diameter of each of the plurality of lumens. ### Claim 32 (depends on 31) The apparatus of claim 31, wherein the flexibility enhancing mechanism includes a plurality of elongated slots extending in a direction parallel to the central longitudinal axis. ### Claim 33 (depends on 31) The apparatus of claim 31, wherein the flexibility enhancing mechanism is perforated. ### Claim 34 (depends on 31) The apparatus of claim 31, wherein the flexibility enhancing mechanism includes an elongated cut extending in a direction parallel to the central longitudinal axis. ### Claim 35 (depends on 34) The apparatus of claim 34, wherein the webbing material has a durometer value that is different from a durometer value of a material that forms the plurality of lumens. ### Claim 36 (depends on 31) The apparatus of claim 31, wherein at least one lumen of the plurality of lumens is formed by a material that has a durometer value that is different from a durometer value of the webbing material and a durometer value of a material that forms at least one other lumen of the plurality of lumens. ### Claim 37 An apparatus comprising: a plurality of lumens; and a webbing material extending between each opposing pair of the plurality of lumens, wherein the webbing material has a flexibility enhancing mechanism configured to form a radial array with the plurality of lumens, the radial array defines a central lumen having a central lumen diameter, and each lumen of the plurality of lumens includes a lumen diameter smaller than the central lumen diameter. ### Claim 38 (depends on 37) The apparatus of claim 37, wherein the flexibility enhancing mechanism allows at least one lumen of the plurality of lumens to be separated from the remainder of the plurality of lumens. ### Claim 39 (depends on 37) The apparatus of claim 37, wherein the plurality of lumens include four first lumens that are configured to receive a wire. ### Claim 40 (depends on 39) The apparatus of claim 39, wherein the four first lumens are arranged orthogonally in the radial array. ### Claim 41 (depends on 40) The apparatus of claim 40, wherein the plurality of lumens includes at least one second lumen located between each of the four first lumens in the radial array.