# US 11,439,792 B2 · Catheter with a side port and methods for use thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,439,792 B2 - Document ID: US11439792B2 - Status: Granted - Kind: B2 - Application number: 15/945,077 - Filed: 2018-04-04 - Published: 2018-10-11 - Granted: 2022-09-13 - Earliest claimed: 2017-04-05 - Assignees: Sanford Health - Applicants: Sanford Health - Inventors: Thomas Haldis; Alexander Drofa - Web page: https://patentgrep.com/patent/US11439792B2 ## CPC - A61M 25/0082: {Catheter tip comprising a tool} - A61B 17/00234: {for minimally invasive surgery (A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence)} - A61M 25/003: {characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves (catheter tips A61M25/0067)} - A61M 25/007: {Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked} - A61M 25/0074: {Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable} - A61M 25/0662: {Guide tubes} - A61M 25/09: Guide wires - A61B 2017/00292: {mounted on or guided by flexible, e.g. catheter-like, means} - A61B 2017/00862: {elastic or resilient} - A61B 2017/00867: {shape memory effect} - A61B 2017/00942: {hydrophilic} - A61M 2025/0034: {characterized by elements which are assembled, connected or fused, e.g. splittable tubes, outer sheaths creating lumina or separate cores} - A61M 2025/0037: {characterized by lumina being arranged side-by-side} - A61M 2025/0096: {being laterally outward extensions or tools, e.g. hooks or fibres} - A61M 2025/0681: {Systems with catheter and outer tubing, e.g. sheath, sleeve or guide tube} - A61M 2205/0216: Materials providing elastic properties, e.g. for facilitating deformation and avoid breaking - A61M 2205/0266: Shape memory materials - 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 The present disclosure provides a catheter comprising: (a) a first tubular structure defining a first lumen, the first tubular structure having a first end and a second end, wherein the first end of the first tubular structure comprises a first opening, and wherein the second end of the first tubular structure comprises a second opening, (b) a second tubular structure defining a second lumen, the second tubular structure having a first end and a second end, wherein the second end of the second tubular structure comprises a third opening, and (c) a fourth opening positioned in a sidewall of the second tubular structure between the first end of the second tubular structure and the second end of the second tubular structure, wherein a first portion of the first tubular structure extends beyond the fourth opening, and wherein the second tubular structure is positioned adjacent to a second portion of the first tubular structure. ## Claims ### Claim 1 A catheter comprising: a first tubular structure defining a first lumen, the first tubular structure having a first end and a second end, wherein the first end of the first tubular structure comprises a first opening, and wherein the second end of the first tubular structure comprises a second opening; a second tubular structure defining a second lumen, the second tubular structure having a first end and a second end, wherein the second end of the second tubular structure comprises a third opening; and a fourth opening positioned in a sidewall of the second tubular structure between the first end of the second tubular structure and the second end of the second tubular structure, wherein a first portion of the first tubular structure extends beyond the first end of the second tubular structure to the first opening, wherein a second portion of the first tubular structure extends from a proximal end of the first portion of the first tubular structure to the second opening, wherein the second portion of the first tubular structure is positioned adjacent to the second tubular structure, wherein the second tubular structure tapers from distal to the fourth opening to the proximal end of the first portion of the first tubular structure, and wherein a diameter of an entirety of the first tubular structure is less than a diameter of the second tubular structure. ### Claim 2 (depends on 1) The catheter of claim 1, wherein a stiffness of the first tubular structure is less than a stiffness of the second tubular structure. ### Claim 3 (depends on 1) The catheter of claim 1, wherein the first tubular structure comprises a first material, and wherein the second tubular structure comprises a second material that is different than the first material. ### Claim 4 (depends on 3) The catheter of claim 3, wherein the first material comprises an elastomer, a metal, a hydrophilic polymer, or a combination thereof. ### Claim 5 (depends on 3) The catheter of claim 3, wherein the second material comprises an elastomer, a metal, a hydrophilic polymer, or a combination thereof. ### Claim 6 (depends on 1) The catheter of claim 1, wherein a thickness of the first tubular structure is less than a thickness of the second tubular structure. ### Claim 7 (depends on 1) The catheter of claim 1, wherein a longitudinal axis of the second portion of the first tubular structure is parallel to a longitudinal axis of the second tubular structure. ### Claim 8 (depends on 1) The catheter of claim 1, wherein a longitudinal axis of the second lumen is perpendicular to a longitudinal axis of the fourth opening. ### Claim 9 (depends on 1) The catheter of claim 1, wherein the second tubular structure comprises an angled surface arranged to provide an angled transition from the second tubular structure to the fourth opening. ### Claim 10 (depends on 1) The catheter of claim 1, wherein the second tubular structure comprises a rounded surface arranged to provide a rounded transition from the second tubular structure to the fourth opening. ### Claim 11 (depends on 1) The catheter of claim 1, wherein the first portion the first tubular structure is tapered. ### Claim 12 (depends on 1) The catheter of claim 1, wherein the first portion of the first tubular structure includes a variable diameter. ### Claim 13 (depends on 1) The catheter of claim 1, wherein the first portion of the first tubular structure includes a coilable portion having shape memory. ### Claim 14 (depends on 13) The catheter of claim 13, wherein the coilable portion includes a plurality of openings in the first tubular structure. ### Claim 15 (depends on 13) The catheter of claim 13, wherein the coilable portion is movable between an elongated orientation and a coiled orientation by removing a guidewire from the first lumen. ### Claim 16 (depends on 1) The catheter of claim 1, further comprising one or more visualization markers positioned adjacent to the fourth opening. ### Claim 17 (depends on 1) The catheter of claim 1, wherein the catheter includes a plurality of metal strands arranged longitudinally or helically along at least a portion of a length of one or both of the first tubular structure and the second tubular structure. ### Claim 18 (depends on 17) The catheter of claim 17, wherein the plurality of metal strands comprises stainless steel, cobalt chromium, nitinol, or a combination thereof. ### Claim 19 (depends on 17) The catheter of claim 17, wherein the plurality of metal strands are braided. ### Claim 20 (depends on 17) The catheter of claim 17, wherein the plurality of metal strands comprise strips. ### Claim 21 (depends on 17) The catheter of claim 17, wherein a portion of the plurality of metal strands arranged along the second portion of the first tubular structure and the second tubular structure are wider than a portion of the plurality of metal strands arranged along the first portion of the first tubular structure. ### Claim 22 (depends on 17) The catheter of claim 17, wherein a portion of the plurality of metal strands arranged along the second portion of the first tubular structure and the second tubular structure are thicker than a portion of the plurality of metal strands arranged along the first portion of the first tubular structure. ### Claim 23 (depends on 1) The catheter of claim 1, wherein the first lumen has a length ranging from about 40 cm to about 200 cm. ### Claim 24 (depends on 1) The catheter of claim 1, wherein a diameter of the second portion of the first tubular structure has a range from about 0.018 mm to about 0.05 mm. ### Claim 25 (depends on 1) The catheter of claim 1, wherein the second tubular structure has a length ranging from about 35 cm to about 190 cm. ### Claim 26 (depends on 1) The catheter of claim 1, wherein a diameter of the second tubular structure has a range from about 5 French inner diameter to about 9 French inner diameter. ### Claim 27 (depends on 1) The catheter of claim 1, wherein the first portion of the first tubular structure has a length ranging from about 5 cm to about 40 cm. ### Claim 28 (depends on 1) The catheter of claim 1, wherein an inner lumen diameter of the first portion of the first tubular structure has a range from about 0.018 mm to about 1 mm. ### Claim 29 (depends on 1) The catheter of claim 1, wherein an external housing is coupled to an exterior surface of the second portion of the first tubular structure and an exterior surface of the second tubular structure. ### Claim 30 (depends on 1) A catheter system, comprising: the catheter of claim 1, wherein the catheter of claim 1 comprises a first catheter; and a second catheter having a having a first end and a second end, wherein the second catheter has a diameter that is less than a diameter of the second tubular structure, and wherein the second catheter is positioned at least partially within the second lumen of the second tubular structure and is moveable relative to the second tubular structure. ### Claim 31 (depends on 30) The catheter system of claim 30, further comprising a wire having a first end and a second end, wherein the first end of the wire is coupled to the second catheter. ### Claim 32 (depends on 31) The catheter system of claim 31, wherein the second end of the wire is coupled to a rotating threaded knob, and wherein the wire is wound around the rotating threaded knob such that turning the rotating threaded knob causes the wire to be wound around the rotating threaded knob to thereby cause the second catheter to move with respect to the second tubular structure. ### Claim 33 (depends on 31) The catheter system of claim 31, wherein the second end of the wire is coupled to a linear slide configured to move the wire to cause the second catheter to move with respect to the second tubular structure. ### Claim 34 (depends on 31) The catheter system of claim 31, wherein the second end of the wire is coupled to a spooled wire system such that unwinding the spooled wire system advances the wire to cause the second catheter to move with respect to the second tubular structure. ### Claim 35 (depends on 30) The catheter system of claim 30, further comprising a locking system configured to lock the second catheter in place. ### Claim 36 (depends on 30) The catheter system of claim 30, wherein the first catheter is in mechanical communication with the second catheter via a gear system comprising a first gear coupled to the first catheter and a second gear coupled to the second catheter. ### Claim 37 (depends on 36) The catheter system of claim 36, wherein an axis of rotation of the first gear is positioned perpendicular to an axis of rotation of the second gear such that a rotation of the first gear translates to a linear movement of the second catheter with respect to the second tubular structure. ### Claim 38 (depends on 30) The catheter system of claim 30, wherein the first catheter is in mechanical communication with the second catheter via a rack and pinion system. ### Claim 39 (depends on 1) A method comprising: introducing a first guidewire into a first arterial configuration via arterial access; loading the catheter according to claim 1 onto the first guidewire through the first lumen of the first tubular structure; advancing the catheter along the first guidewire and introducing the catheter into the first arterial configuration; introducing a second guidewire into the second lumen of the second tubular structure and through the fourth opening such that the second guidewire enters a second arterial configuration; and advancing a guide catheter via the second guidewire into the second arterial configuration. ### Claim 40 (depends on 39) The method of claim 39, further comprising: retracting the catheter while advancing the guide catheter into the second arterial configuration. ### Claim 41 (depends on 39) The method of claim 39, wherein the first arterial configuration comprises an aortic arch, and wherein the second arterial configuration comprises one of a brachiocephalic artery, a right common carotid, a right or left vertebral artery, a left common carotid artery, a left subclavian artery, renal arteries, spinal arteries, pulmonary arteries, or a right ventricle. ### Claim 42 (depends on 30) A method comprising: introducing a first guidewire into a first arterial configuration via arterial access; loading the catheter system according to claim 30 onto the first guidewire through the first lumen of the first tubular structure; advancing the first catheter along the first guidewire and introducing the first catheter into the first arterial configuration; introducing a second guidewire into the second lumen of the second tubular structure and through the fourth opening such that the second guidewire enters a second arterial configuration; and advancing the second catheter via the second guidewire with respect to the first catheter and into the second arterial configuration. ### Claim 43 (depends on 42) The method of claim 42, further comprising: retracting the first catheter while advancing the second catheter into the second arterial configuration. ### Claim 44 (depends on 42) The method of claim 42, wherein the first arterial configuration comprises an aortic arch, and wherein the second arterial configuration comprises one of a brachiocephalic artery, a right common carotid, a right or left vertebral artery, a left common carotid artery, a left subclavian artery, renal arteries, spinal arteries, pulmonary arteries, or a right ventricle.