# US 2014/0155806 A1 · Device for draining lymph into vein > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0155806 A1 - Document ID: US20140155806A1 - Status: Published application - Kind: A1 - Application number: 14/017,798 - Filed: 2013-09-04 - Published: 2014-06-05 - Earliest claimed: 2012-12-05 - Assignees: Ming-Huei CHENG - Inventors: Ming-Huei CHENG - Web page: https://patentgrep.com/patent/US20140155806A1 ## CPC - A61M 27/002: {Implant devices for drainage of body fluids from one part of the body to another (intraocular A61F9/00781; middle ear A61F11/202)} - A61M 5/165: Filtering accessories, e.g. blood filters, filters for infusion liquids (A61M1/34, A61M5/36 take precedence) - A61M 2202/0028: fluid entering a filter - A61M 2202/0405: Lymph - 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 invention relates to a device for draining lymph into vein, which comprises: a storage chamber including a chamber wall, wherein a storage space formed by the chamber wall, and at least one first opening and a second opening are formed on the chamber wall; at least one osmosis membrane disposed at the first opening so that lymph can penetrate into the storage space, wherein the osmosis membrane is made of negative charged polymer molecules; a first conduit, of which one end connects to the storage space, and the other end connects with a vein so that the space can connect with the vein; and a pump provided in the storage chamber, wherein a negative pressure in the storage space is generated by the pump to drain lymph into the vein. ## Claims ### Claim 1 A device for draining lymph into vein, comprising: a storage chamber, comprising a chamber wall, wherein the chamber wall extends to form a storage space, and the chamber wall has at least one first opening and a second opening formed thereon; at least one osmosis membrane, which is made of a negatively charged polymer molecule material, and is configured at the first opening to allow lymph to permeate into the storage space of the storage chamber; a first conduit, of which one end is connected to the storage space of the storage chamber, and another end is connected to a vein, so as to connect the storage space of the storage chamber to the vein; and a pump, which is configured in the storage chamber, wherein the pump operates to generate a negative pressure to make a pressure inside the storage space smaller than a pressure outside the storage space so as to guide the lymph from outside the storage space into the inside of the storage space, and to drain the lymph into the vein through the first conduit. ### Claim 2 (depends on 1) The device of claim 1, wherein the pump comprises an entry terminal and an exit terminal, the lymph permeating into the storage space of the storage chamber drains from the entry terminal to the exit terminal, and drains into the vein through the first conduit. ### Claim 3 (depends on 2) The device of claim 2, wherein the pump is configured in the storage space of the storage chamber, and the exit terminal is connected to the second opening. ### Claim 4 (depends on 2) The device of claim 2, wherein the pump is configured on an outside of the storage chamber, and the entry terminal is connected to the second opening, and the exit terminal is connected to the first conduit. ### Claim 5 (depends on 4) The device of claim 4, wherein the pump further comprises a second conduit, and the entry terminal is connected to the second opening through the second conduit. ### Claim 6 (depends on 4) The device of claim 4, wherein the pump is a detachable pump. ### Claim 7 (depends on 5) The device of claim 5, wherein the pump is a detachable pump. ### Claim 8 (depends on 1) The device of claim 1, wherein the pump is a micro pump, a peristaltic micro pump, or a manual micro pump. ### Claim 9 (depends on 5) The device of claim 5, further comprising an anti-reflux valve, which is configured at the second opening, the first conduit, the second conduit, or a combination thereof. ### Claim 10 (depends on 1) The device of claim 1, wherein a biocompatible material covers the periphery of the lymph draining device. ### Claim 11 (depends on 10) The device of claim 10, wherein the biocompatible material is one selected from the group consisting of: silicone, silicone rubber, polyethylene, polytetrafluoroethylene, polyurethane, polydimethyl siloxane, polylactic acid, polyglycolic acid, niobium-titanium-zirconium β alloy, titanium alloy metal, gold, silver, cobalt-chromium-molybdenum alloy, and poly (hydroxyethyl methacrylate). ### Claim 12 (depends on 1) The device of claim 1, wherein a diameter of the first conduit is between 1 mm to 2 mm. ### Claim 13 (depends on 1) The device of claim 1, wherein a pore diameter of the osmosis membrane is between 20 nm to 50 nm. ### Claim 14 (depends on 1) The device of claim 1, wherein the negative pressure generated by the pump in the storage space is between 10 mmHg to 30 mmHg. ### Claim 15 (depends on 1) The device of claim 1, further comprising a drug injection silicone piece, which is configured on the storage chamber to allow a drug to be injected into the storage space of the storage chamber through the drug injection silicone piece. ### Claim 16 (depends on 1) The device of claim 1, further comprising at least one fixing ring, wherein the fixing ring is configured on an outside of the storage wall of the storage chamber.