# US 2025/0375596 A1 · Cannula and Balloon System for Extracorporeal Membrane Oxygenation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0375596 A1 - Document ID: US20250375596A1 - Status: Published application - Kind: A1 - Application number: 18/983,146 - Filed: 2024-12-16 - Published: 2025-12-11 - Earliest claimed: 2020-08-28 - Inventors: Viachaslau Barodka - Web page: https://patentgrep.com/patent/US20250375596A1 ## CPC - A61M 1/3659: {Cannulae pertaining to extracorporeal circulation} - A61M 1/3667: {with assisted venous return} - A61M 1/367: {Circuit parts not covered by the preceding subgroups of group A61M1/3621} - A61M 25/10: Balloon catheters ({A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02;} inflatable balloons for placing stents or stent-grafts A61F2/958 {; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00}) - A61M 1/1698: {Blood oxygenators with or without heat-exchangers (intracorporal A61M1/1678; manufacturing of membranes therefor B01D67/00; semi-permeable membranes for separation processes characterised by their properties B01D69/00; semi-permeable membranes characterised by their material B01D71/00)} - A61M 2025/0031: {characterized by lumina for withdrawing or delivering, i.e. used for extracorporeal circuit treatment} - A61M 2202/0021: removed from and reintroduced into the body, e.g. after treatment - A61M 2202/0413: Blood - A61M 2205/3331: Pressure; Flow - A61M 2210/125: Heart - 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 The present disclosure provides for a cannula and balloon system for extracorporeal membrane oxygenation. The system may comprise one or more cannula, one or more insertion mechanism, and one or more balloon cuff. The method may comprise venous-venous or venous-arterial insertion into one or more blood vessels or chambers of the heart. The balloon cuff may allow fluid flow to avoid oxygenated blood restriction to a region of the body for the cannula insertion duration. One or both the balloon cuff and dual cannula may prevent occlusion, recirculation, and mixing of oxygenated and deoxygenated blood. When there is a dual cannula, the cannula may comprise a reinfusion cannula and a drainage cannula. A reinfusion cannula may bypass one or more chambers of the heart. When the system comprises more than one cannula, the cannulae may be joined via a cannula connection mechanism. ## Claims ### Claim 1 A cannula system comprising: a reinfusion cannula comprising a first tubing with an external end and an internal end insertable into a first vessel of a patient configured to flow oxygenating fluid through a first location within a heart of the patient, wherein the first location is interatrial; a drainage cannula comprising a second tubing with an external end and an internal end insertable into the first vessel of a patient configured to flow deoxygenated fluid from a first location proximate to the heart; and a first balloon insertable into the first vessel, wherein one or both the reinfusion cannula and the drainage cannula are configured to be inserted through at least one portion of the first balloon, wherein the first balloon is configured to surround one or both the reinfusion cannula and the drainage cannula after insertion. ### Claim 2 (depends on 1) The system of claim 1, wherein when the balloon is inserted into the vessel and inflated, the balloon is configured to limit occlusion of the vessel. ### Claim 3 (depends on 1) The system of claim 1, wherein when the balloon is inserted into the vessel and inflated, the balloon is configured to limit flow of fluid within the vessel limiting recirculation of blood. ### Claim 4 (depends on 1) The system of claim 1, wherein the cannula includes a tapered diameter end. ### Claim 5 (depends on 1) The system of claim 1, further including a cannula extender configured to bypass at least one chamber of the heart, wherein the cannula extender is attachable to the reinfusion cannula. ### Claim 6 (depends on 1) The system of claim 1, wherein the reinfusion cannula is configured to bypass at least one chamber of the heart. ### Claim 7 (depends on 1) The system of claim 1, wherein the first vessel includes the vena cava. ### Claim 8 (depends on 1) The system of claim 1, wherein the balloon comprises a positioning arm, wherein the positioning arm is configured to secure the balloon within the vessel. ### Claim 9 (depends on 6) The system of claim 6, wherein the positioning arm is configured to position the balloon between a vena cava within a heart of the patient. ### Claim 10 (depends on 1) The system of claim 1, wherein the cannula comprises a reinfusion cannula and drainage cannula, wherein the drainage cannula is configured to surround the reinfusion cannula. ### Claim 11 (depends on 8) The system of claim 8, wherein the reinfusion cannula is configured to extend beyond the drainage cannula. ### Claim 12 (depends on 8) The system of claim 8, wherein the insertion of the reinfusion cannula and drainage cannula is configured to occur simultaneously via a double lumen needle. ### Claim 13 (depends on 10) The system of claim 10, wherein the double lumen needle further comprises a first insertion mechanism for the reinfusion cannula and a second insertion mechanism for the drainage cannula. ### Claim 14 (depends on 11) The system of claim 11, wherein the first insertion mechanism and second insertion mechanisms are configured to guide placement of the reinfusion cannula and drainage cannula to different positions within the vessel or a heart. ### Claim 15 (depends on 1) The system of claim 1, wherein the drainage cannula is further configured to flow deoxygenated fluid from a second location within the heart. ### Claim 16 (depends on 15) The system of claim 15, wherein the first location within the heart is beyond the interatrial septum and the second location within the heart is in the right atrium. ### Claim 17 (depends on 1) The system of claim 1, wherein at least a portion of the internal end comprises a plurality of openings configured to allow for flow of fluid. ### Claim 18 (depends on 14) The system of claim 14, wherein the plurality of openings are located after the balloon in the insertable end. ### Claim 19 (depends on 14) The system of claim 14, wherein the plurality of openings are configured to allow for flow of oxygenated fluid in multiple directions within the vessel. ### Claim 20 (depends on 1) The system of claim 1, wherein the balloon comprises a plurality of openings configured to allow for flow of fluid.