# US 2025/0082918 A1 · Enteral feeding system, method, and apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0082918 A1 - Document ID: US20250082918A1 - Status: Published application - Kind: A1 - Application number: 18/953,994 - Filed: 2024-11-20 - Published: 2025-03-13 - Earliest claimed: 2015-09-22 - Assignees: Avent, Inc. - Applicants: Avent, Inc. - Inventors: Jeffrey S. Nordquist; Crystal E. Koelper; Shawn G. Purnell; Bernard Daurelle - Web page: https://patentgrep.com/patent/US20250082918A1 ## CPC - A61M 39/105: {Multi-channel connectors or couplings, e.g. for connecting multi-lumen tubes (multi-channel connectors in general F16L37/56)} - A61J 15/0003: {Nasal or oral feeding-tubes, e.g. tube entering body through nose or mouth} - A61J 15/0073: {Multi-lumen tubes} - A61J 15/0092: {Valves on feeding tubes (tube valves A61M39/22)} - A61J 15/0096: {Provisions for venting} - A61M 1/772: {operating alternately} - A61M 1/84: {Drainage tubes; Aspiration tips (for negative pressure wound therapy A61M1/90; for surgical cutting instruments A61B17/32)} - A61M 39/1011: {Locking means for securing connection; Additional tamper safeties (A61M39/16 takes precedence)} - A61M 39/12: for joining a flexible tube to a rigid attachment - A61M 39/24: Check- or non-return valves - A61M 39/1033: {Swivel nut connectors, e.g. threaded connectors or bayonet-connectors} - A61M 2039/1083: {having a plurality of female connectors, e.g. Luer connectors} - A61M 2039/1088: {having a plurality of male connectors, e.g. Luer connectors} - A61M 2205/32: with radio-opaque indicia - A61M 2210/1053: Stomach - 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)} - A61J: CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE ## Abstract A system for administering nutritional fluids to a patient, including suctioning or aspirating fluids from stomach, performing gastric decompression, and containing gastric reflux. An exemplary system includes a Y-connector, a multiple lumen tube positional in the patient's gastrointestinal track, and an anti-reflux valve for controlling the flow of gastric/reflux material from the system. ## Claims ### Claim 1 An enteral feeding and suction system comprising: a Y-connector including: a delivery arm defining a delivery arm channel having a first male ISO 80369-3 compatible connector at a distal end thereof; a suction arm defining a suction arm channel having a second male ISO 80369-3 compatible connector at a distal end thereof; and a convergence arm defining a convergence channel in fluid communication with both the delivery arm channel and the suction arm channel; a tapered hollow stem connector comprising a female ISO 80369-3 compatible connector at a first end and mated with the second male ISO 80369-3 compatible connector, wherein the tapered hollow stem connector is axially aligned with the suction arm, and an outlet end of the tapered hollow stem connector is in fluid communication with the convergence arm channel and the delivery arm channel; and a multiple lumen tube spanning between a proximal end and a closed distal end and comprising a first lumen and a second lumen, wherein the proximal end is received by the convergence arm, and the first lumen defines a plurality of openings in a sidewall at the distal end. ### Claim 2 (depends on 1) The enteral feeding and suction system of claim 1, wherein the plurality of openings include a first pattern of holes defined on a first side of the first lumen, and a second pattern of holes defined on a second side of the first lumen opposite the first side. ### Claim 3 (depends on 2) The enteral feeding and suction system of claim 2, wherein the first pattern of holes and the second pattern of holes are axially aligned. ### Claim 4 (depends on 2) The enteral feeding and suction system of claim 2, wherein the first pattern of holes and the second pattern of holes are axially spaced between a location hole and a fluid communication opening. ### Claim 5 (depends on 1) The enteral feeding and suction system of claim 1, wherein the multiple lumen tube comprises a radiopaque stripe extending linearly between the plurality of openings at the distal end. ### Claim 6 (depends on 5) The enteral feeding and suction system of claim 5, wherein the first lumen comprises a location hole that interrupts the radiopaque stripe at the distal end. ### Claim 7 (depends on 1) The enteral feeding and suction system of claim 1, wherein the first lumen and the second lumen are fluidly separated by a wall, and wherein wall comprises a distalmost fluid communication opening. ### Claim 8 (depends on 1) The enteral feeding and suction system of claim 1, wherein the Y-connector further comprises a one-way valve interposed between the outlet end of the hollow stem connector and the proximal end of the suction arm stem adapted to allow fluid to flow in one direction through the suction arm stem from a base of the hollow stem connector to the outlet end of the hollow stem connector. ### Claim 9 (depends on 8) The enteral feeding and suction system of claim 8, wherein the one-way valve has a crack pressure that ranges from 0.1 psi to 1.0 psi. ### Claim 10 (depends on 1) The enteral feeding and suction system of claim 1, wherein the Y-connector further comprises a stopcock valve configured to fluidly couple the delivery channel and the convergence channel in a first position, and fluidly couple the suction channel and the convergence channel in a second position. ### Claim 11 (depends on 1) The enteral feeding and suction system of claim 1, wherein the Y-connector includes an inner core made of a first material and an over-layer made of a second material, the over-layer enclosing a body portion of the inner core and defining a first annular gap between the first male ISO 80369-3 compatible connector, and a second annular gap between the second male ISO 80369-3 compatible connector. ### Claim 12 (depends on 11) The enteral feeding and suction system of claim 11, wherein the first material is a transparent copolyester and further wherein the second material is a translucent thermoplastic elastomer. ### Claim 13 (depends on 11) The enteral feeding and suction system of claim 11, wherein a first cap is coupled to the delivery arm with a first tether comprising a ring connector configured to circumferentially rotate around the delivery arm within the first gap, and a second cap is coupled to the suction arm with a second tether comprising a ring connector configured to circumferentially rotate about the suction arm within the second gap. ### Claim 14 (depends on 1) The enteral feeding and suction system of claim 1, further comprising a positioning stylet having a first end and a second end, wherein the positioning stylet includes a union device adapted to couple to the first male ISO 80369-3 compatible connector of the delivery arm, the first end of the positioning stylet includes an electrical connector, the second end of the positioning stylet includes a coil that is adapted to move through the first lumen of the multiple lumen tube, and the second end of the positioning stylet is located within the first lumen of the multiple lumen tube at the distal end of the first lumen. ### Claim 15 An enteral feeding and suction system comprising: a fluid source; a suction assembly having a vacuum and a suction canister, wherein the vacuum and the suction canister are connected by a section of vacuum tubing; a Y-connector including: a suction arm having a suction arm stem and an outer end, wherein the suction arm stem has a proximal end and a distal end, the suction arm includes a tapered hollow stem connector adapted to frictionally fit into a suction tube connected to the suction assembly, the tapered hollow stem connector has a base and an outlet end, the tapered hollow stem connector is axially aligned with the suction arm stem and the base of the tapered hollow stem connector is coupled to the outer end of the suction arm, and the tapered hollow stem connector has an outside diameter that decreases from the base of the hollow stem connector to the outlet end of the tapered hollow stem connector; a one-way valve interposed between the outlet end of the tapered hollow stem connector and the proximal end of the suction arm stem adapted to allow fluid to flow in one direction through the suction arm stem from the base of the tapered hollow stem connector to the outlet end of the tapered hollow stem connector; a delivery arm having a delivery arm stem, wherein the delivery arm includes a threaded small-bore connector at an outer end of the delivery arm; a convergence arm having a convergence arm stem, wherein the convergence arm includes a connection port adapted to receive a multiple lumen tube, the delivery arm stem is in fluid communication with the convergence arm stem, and the suction arm stem is in fluid communication with the convergence arm stem and the delivery arm stem; a multiple lumen tube having a proximal end and a distal end, wherein the multiple lumen tube includes a first lumen and a second lumen, the first lumen has a proximal end and a distal end, the distal end has at least one opening, the proximal end of the first lumen adapted to attach to the connection port on the convergence arm of the Y-connector, the second lumen having a proximal end and a distal end, the distal end of the second lumen in fluid communication with the distal end of the first lumen and having an opening on a wall between the first lumen and second lumen adapted to allow air to enter the distal end of the first lumen, the proximal end of the second lumen extending beyond the proximal end of the first lumen, and the proximal end of the second lumen open to ambient air and having an enlarged diameter; an administration tubing segment, wherein the administration tubing segment has a first end connected to the fluid source and a second end adapted to connect to the delivery arm of the Y-connector; and a suction tubing segment, wherein the suction tubing segment has a first end and a second end, the first end of the suction tubing segment is connected to the suction canister, and the second end of the suction tubing segment is adapted to connect to the tapered hollow stem connector on the suction arm. ### Claim 16 (depends on 15) The system of claim 15, further comprising an enteral feeding pump. ### Claim 17 (depends on 15) The system of claim 15, further comprising an anti-reflux valve attached to the proximal end of the second lumen, wherein the anti-reflux valve has a top end and a bottom end, the anti-reflux valve including a one-way valve adapted to allow fluid to flow in one direction through the anti-reflux valve from the top end of the anti-reflux valve to the second lumen. ### Claim 18 (depends on 15) The system of claim 15, further comprising an anti-reflux valve attached to the proximal end of the second lumen, wherein the anti-reflux valve has a top end and a bottom end, the anti-reflux valve including: an anti-reflux filter housing having a membrane; and a connector, wherein the connector is adapted to receive the anti-reflux filter housing, and the membrane is adapted to obstruct fluid flow while allowing air to flow in both directions. ### Claim 19 An enteral feeding and gastric pressure relief system comprising: a gastric material collection reservoir, wherein the gastric material collection reservoir is adapted to collect reflux fluids from a patient's stomach; a fluid source; a Y-connector including: a suction arm having a suction arm stem and an outer end, wherein the suction arm includes a tapered hollow stem connector adapted to frictionally fit into a section of tubing, the tapered hollow stem connector has a base and an outlet end, the tapered hollow stem connector is axially aligned with the suction arm stem and the base of the tapered hollow stem connector is coupled to the outer end of the suction arm, and the tapered hollow stem connector has an outside diameter that decreases from the base of the tapered hollow stem connector to the outlet end of the tapered hollow stem connector; a one-way valve interposed between the outlet end of the hollow stem connector and the proximal end of the suction arm stem adapted to allow fluid to flow in one direction through the suction arm stem from the base of the tapered hollow stem connector to the outlet end of the tapered hollow stem connector; a delivery arm having a delivery arm stem, wherein the delivery arm includes a threaded small-bore connector at an outer end of the delivery arm; a convergence arm having a convergence arm stem, wherein the convergence arm includes a connection port adapted to receive a multiple lumen tube, the delivery arm stem is in fluid communication with the convergence arm stem, and the suction arm stem is in fluid communication with the convergence arm stem and the delivery arm stem; a multiple lumen tube having a proximal end and a distal end, wherein the multiple lumen tube includes a first lumen and a second lumen, the first lumen has a proximal end and a distal end, the distal end has at least one opening, the proximal end of the first lumen adapted to attach to the connection port on the convergence arm of the Y-connector, the second lumen having a proximal end and a distal end, the distal end of the second lumen in fluid communication with the distal end of the first lumen and having an opening on a wall between the first lumen and second lumen adapted to allow air to enter the distal end of the first lumen, the proximal end of the second lumen extending beyond the proximal end of the first lumen, and the proximal end of the second lumen open to ambient air and having an enlarged diameter; an administration tubing segment, wherein the administration tubing segment has a first end connected to the fluid source and a second end adapted to connect to the suction arm of the Y-connector; and a relief tubing segment, wherein the relief tubing segment has a first end and a second end, and the first end of the relief tubing segment is connected to the gastric material collection reservoir, and the second end of the relief tubing segment is connected to the open proximal end of the second lumen of the multiple lumen tube. ### Claim 20 (depends on 19) The system of claim 19, further comprising an anti-reflux valve connector attached to the proximal end of the second lumen.