# US 11,471,381 B2 · Gastric jejunal feeding tube devices for gastric jejunal feeding of an infant or child > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,471,381 B2 - Document ID: US11471381B2 - Status: Granted - Kind: B2 - Application number: 16/397,071 - Filed: 2019-04-29 - Published: 2019-10-31 - Granted: 2022-10-18 - Earliest claimed: 2018-04-30 - Assignees: Applied Medical Technology, Inc. - Applicants: Applied Medical Technology, Inc. - Inventors: Grant Wesley Phillips; Derek M. Williams; George J. Picha; Calia Alysia Battista - Web page: https://patentgrep.com/patent/US11471381B2 ## CPC - A61J 15/0069: {Tubes feeding directly to the intestines, e.g. to the jejunum} - A61M 25/005: {with embedded materials for reinforcement, e.g. wires, coils, braids} - A61J 15/0015: {Gastrostomy feeding-tubes (insertion tools or methods A61B17/34)} - A61J 15/0042: {inflatable} - A61J 15/0073: {Multi-lumen tubes} - A61M 25/0043: {characterised by structural features} - A61J 15/0007: {inserted by using a guide-wire (guide wires A61M25/09)} - A61J 15/0076: {Feeding pumps (A61M1/00, A61M5/142, A61M25/1018 take precedence)} - A61J 15/0092: {Valves on feeding tubes (tube valves A61M39/22)} - A61J 15/0096: {Provisions for venting} - A61M 2025/0059: {having means for preventing the catheter, sheath or lumens from collapsing due to outer forces, e.g. compressing forces, or caused by twisting or kinking} - A61M 2210/106: Small intestine - A61M 2240/00: Specially adapted for neonatal use - 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 - 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 A gastric jejunal (GJ) feeding tube device for GJ feeding of an infant or child is provided. The device comprises a GJ button comprising a GJ button body, a gastric port, a jejunal port, a gastric channel, and a jejunal channel. The device also comprises a multi-lumen tube comprising a multi-lumen tube body, a multi-lumen tube proximal end, and a multi-lumen tube distal end. The device also comprises a jejunal tube comprising a jejunal tube body, a jejunal tube proximal end, a jejunal tube distal end, a spring, and a ring. The spring provides a kink-resistant feature. The ring is positioned at the jejunal tube proximal end. The jejunal tube and the GJ button are operatively connected at the ring and the mating surface by radial compression. The ring has a higher durometer than the jejunal tube body and an outer diameter that does not substantially decrease distally. ## Claims ### Claim 1 A gastric jejunal (GJ) feeding tube device for GJ feeding of an infant or child, comprising: (a) a GJ button comprising (i) a GJ button body, (ii) a gastric port, (iii) a jejunal port, (iv) a gastric channel, and (v) a jejunal channel, the GJ button body having a proximal surface, a distal surface, and a base opening, the gastric port and the jejunal port being positioned at the proximal surface, the base opening being positioned at the distal surface, the gastric channel and the jejunal channel extending from the gastric port and the jejunal port, respectively, to the base opening, and the jejunal channel having a mating surface therein; (b) a multi-lumen tube comprising (i) a multi-lumen tube body, (ii) a multi-lumen tube proximal end, and (iii) a multi-lumen tube distal end, the multi-lumen tube body defining a gastric lumen and a jejunal lumen, the gastric lumen and the jejunal lumen each having a proximal opening located at the multi-lumen tube proximal end and a distal opening located along the multi-lumen tube body or at the multi-lumen tube distal end; and (c) a jejunal tube comprising (i) a jejunal tube body, (ii) a jejunal tube proximal end, (iii) a jejunal tube distal end, (iv) a spring, and (v) a ring, the jejunal tube body defining a jejunal tube passage having a proximal opening located at the jejunal tube proximal end and a distal opening located at the jejunal tube distal end, the spring being positioned within the jejunal tube body, extending therealong, and providing a kink-resistant feature thereto, and the ring being positioned at the jejunal tube proximal end, coaxially with respect to the jejunal tube body, wherein: the jejunal tube and the GJ button are operatively connected at the ring and the mating surface, the mating surface radially compressing the ring; the multi-lumen tube and the GJ button are operatively connected at the multi-lumen tube proximal end and the base opening; the jejunal tube extends through the jejunal lumen of the multi-lumen tube; the ring has a higher durometer than the jejunal tube body; and the ring has an outer diameter that does not substantially decrease distally with respect to the jejunal tube. ### Claim 2 (depends on 1) The GJ feeding tube device of claim 1, wherein the ring and the mating surface are shaped for a complementary fit. ### Claim 3 (depends on 1) The GJ feeding tube device of claim 1, wherein the ring has an axial length, and the outer diameter is substantially uniform along the axial length. ### Claim 4 (depends on 3) The GJ feeding tube device of claim 3, wherein the axial length of the ring is 0.020 inches to 0.200 inches and the outer diameter of the ring is 0.080 inches to 0.180 inches. ### Claim 5 (depends on 3) The GJ feeding tube device of claim 3, wherein the mating surface has an inner diameter that is 0.010 inches to 0.030 inches less than the outer diameter of the ring. ### Claim 6 (depends on 1) The GJ feeding tube device of claim 1, wherein the ring has a substantially cylindrical shape. ### Claim 7 (depends on 1) The GJ feeding tube device of claim 1, wherein the jejunal channel further comprises a funnel portion between the jejunal port and the mating surface, the funnel portion having an inner diameter that decreases distally. ### Claim 8 (depends on 1) The GJ feeding tube device of claim 1, wherein the ring is positioned at the jejunal tube proximal end based on overmolding the jejunal tube body with the ring. ### Claim 9 (depends on 1) The GJ feeding tube device of claim 1, wherein the jejunal tube body comprises a jejunal tube body wall, the spring being embedded in the jejunal tube body wall. ### Claim 10 (depends on 1) The GJ feeding tube device of claim 1, wherein the jejunal tube body has a size of French 8 or smaller. ### Claim 11 (depends on 1) The GJ feeding tube device of claim 1, wherein the multi-lumen tube body has a size of French 14 or smaller. ### Claim 12 (depends on 1) The GJ feeding tube device of claim 1, wherein the gastric lumen of the multi-lumen tube has a gastric lumen length, the jejunal lumen of the multi-lumen tube has a jejunal lumen length, and the gastric lumen length is about the same as the jejunal lumen length. ### Claim 13 (depends on 1) The GJ feeding tube device of claim 1, wherein one or more of the jejunal tube or the multi-lumen tube further comprises barium sulfate. ### Claim 14 (depends on 1) The GJ feeding tube device of claim 1, wherein the multi-lumen tube and the GJ button are operatively connected based on overmolding the multi-lumen tube with the GJ button body. ### Claim 15 (depends on 1) The GJ feeding tube device of claim 1, further comprising a balloon, wherein: (i) the GJ button further comprises a balloon port and a balloon channel; (ii) the multi-lumen tube further comprises a balloon lumen; and (iii) the balloon is attached to the multi-lumen tube, operatively connected to the balloon lumen, and reversibly inflatable for internal retention of the multi-lumen tube in a patient. ### Claim 16 (depends on 15) The GJ feeding tube device of claim 15, wherein the GJ feeding tube device has a stoma length of 0.5 cm to 6.0 cm. ### Claim 17 (depends on 15) The GJ feeding tube device of claim 15, further comprising a jejunal tip attached at the jejunal tube distal end. ### Claim 18 (depends on 17) The GJ feeding tube device of claim 17, wherein the GJ feeding tube device has a jejunal length of 10 cm to 60 cm. ### Claim 19 (depends on 1) The GJ feeding tube device of claim 1, further comprising a jejunal tip attached at the jejunal tube distal end. ### Claim 20 (depends on 1) The GJ feeding tube device of claim 1, wherein the GJ button body comprises one or more of silicone or polyurethane. ### Claim 21 (depends on 1) The GJ feeding tube device of claim 1, wherein the multi-lumen tube body comprises one or more of silicone or polyurethane. ### Claim 22 (depends on 1) The GJ feeding tube device of claim 1, wherein the jejunal tube body comprises one or more of polyurethane or silicone. ### Claim 23 (depends on 1) The GJ feeding tube device of claim 1, wherein the spring comprises one or more of polyether ether ketone, stainless steel, nylon, or high density polyethylene. ### Claim 24 (depends on 1) The GJ feeding tube device of claim 1, wherein the ring comprises one or more of polyurethane or high-durometer silicone. ### Claim 25 (depends on 1) The GJ feeding tube device of claim 1, wherein the ring has a filled toroidal structure about the proximal opening of the jejunal tube passage of the jejunal tube body.