# US 2024/0197987 A1 · Intravenous filter with priming function > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2024/0197987 A1 - Document ID: US20240197987A1 - Status: Published application - Kind: A1 - Application number: 18/593,170 - Filed: 2024-03-01 - Published: 2024-06-20 - Earliest claimed: 2021-04-06 - Assignees: CareFusion 303, Inc. - Applicants: CareFusion 303. Inc. - Inventors: Leyla Yamin; Kelly Kloster Hon - Web page: https://patentgrep.com/patent/US20240197987A1 ## CPC - A61M 5/165: Filtering accessories, e.g. blood filters, filters for infusion liquids (A61M1/34, A61M5/36 take precedence) - A61M 5/36: with means for eliminating or preventing injection or infusion of air into body (dialysis systems, blood oxygenators A61M1/14; haemofiltration equipment A61M1/34; {automatic tube cut-off A61M39/281}) - A61M 5/1414: {Hanging-up devices} - A61M 5/16813: {by controlling the degree of opening of the flow line} - A61M 39/08: Tubes; Storage means specially adapted therefor - A61M 39/225: {Flush valves, i.e. bypass valves for flushing line} - A61M 39/24: Check- or non-return valves - A61M 2005/1402: {Priming} - A61M 2005/1403: {Flushing or purging} - A61M 2005/1657: {Filter with membrane, e.g. membrane, flat sheet type infusion filter} - A61M 2039/2446: {Flexible disc} - A61M 2205/7518: bacterial - A61M 2205/7545: for solid matter, e.g. microaggregates - 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 IV filters are described herein. An IV filter includes a filter housing, a filter media, a filter channel, a priming channel, and a disk valve. The filter housing defines an inlet and an outlet. The filter media is disposed within the filter housing. The filter channel is disposed within the filter housing. The filter channel is in fluid communication with the inlet and the filter media, and the filter media permits flow from the filter channel to the outlet and captures particulate from the flow. The priming channel is disposed within the filter housing. The priming channel is in fluid communication with the inlet and the outlet. The disk valve is coupled to the filter housing. The disk valve is moveable to direct flow from the inlet to the priming channel in a first position and to direct flow from the inlet to the filter channel in a second position. ## Claims ### Claim 1 A method, comprising: introducing flow to an IV filter; directing flow from an inlet through a filter media via a filter channel; moving a disk valve to direct flow from the filter channel to a priming channel; and directing flow from the inlet of the IV filter to an outlet of the IV filter via the priming channel to bypass the filter media. ### Claim 2 (depends on 1) The method of claim 1, further comprising: directing flow from the inlet through the filter media to the outlet via the filter channel at a first flow rate; and directing flow from the inlet of the IV filter to the outlet of the IV filter via the priming channel at a second flow rate, wherein the second flow rate is greater than the first flow rate. ### Claim 3 (depends on 1) The method of claim 1, further comprising: sealing the filter channel during the directing flow from the inlet of the IV filter to the outlet of the IV filter via the priming channel. ### Claim 4 (depends on 1) The method of claim 1, further comprising: sealing the priming channel during the directing flow from the inlet through the filter media via the filter channel. ### Claim 5 (depends on 1) The method of claim 1, further comprising: rotating the disk valve relative to the IV filter to direct flow from the filter channel to the priming channel. ### Claim 6 (depends on 1) The method of claim 1, wherein a reservoir is in fluid communication with the outlet. ### Claim 7 (depends on 6) The method of claim 6, wherein the priming channel is in fluid communication with the reservoir. ### Claim 8 (depends on 6) The method of claim 6, wherein the filter media is in fluid communication with the reservoir. ### Claim 9 (depends on 1) The method of claim 1, further comprising: supporting the filter media via at least one filter support. ### Claim 10 A method, comprising: introducing flow to an IV filter; directing flow from an inlet to an outlet of the IV filter via a priming channel to bypass a filter media disposed within the IV filter; moving a disk valve to direct flow from the priming channel to a filter channel; and directing flow from the inlet through filter media via the filter channel. ### Claim 11 (depends on 10) The method of claim 10, further comprising: directing flow from the inlet through the filter media to the outlet via the filter channel at a first flow rate; and directing flow from the inlet of the IV filter to the outlet of the IV filter via the priming channel at a second flow rate, wherein the second flow rate is greater than the first flow rate. ### Claim 12 (depends on 10) The method of claim 10, further comprising: sealing the filter channel during the directing flow from the inlet of the IV filter to the outlet of the IV filter via the priming channel. ### Claim 13 (depends on 10) The method of claim 10, further comprising: sealing the priming channel during the directing flow from the inlet through the filter media via the filter channel. ### Claim 14 (depends on 10) The method of claim 10, further comprising: rotating the disk valve relative to the IV filter to direct flow from the priming channel to the filter channel. ### Claim 15 (depends on 10) The method of claim 10, wherein a reservoir is in fluid communication with the outlet. ### Claim 16 (depends on 15) The method of claim 15, wherein the priming channel is in fluid communication with the reservoir. ### Claim 17 (depends on 15) The method of claim 15, wherein the filter media is in fluid communication with the reservoir. ### Claim 18 A method, comprising: introducing flow to an IV filter; directing flow from an inlet through a filter media to an outlet via a filter channel at a first flow rate; and directing flow from the inlet of the IV filter to the outlet of the IV filter via a priming channel at a second flow rate, wherein the second flow rate is greater than the first flow rate. ### Claim 19 (depends on 18) The method of claim 18, further comprising: sealing the filter channel during the directing flow from the inlet of the IV filter to the outlet of the IV filter via the priming channel. ### Claim 20 (depends on 18) The method of claim 18, further comprising: sealing the priming channel during the directing flow from the inlet through the filter media via the filter channel.