# US 11,306,832 B2 · Closed stopcock > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,306,832 B2 - Document ID: US11306832B2 - Status: Granted - Kind: B2 - Application number: 16/611,976 - Filed: 2018-06-05 - Published: 2021-04-22 - Granted: 2022-04-19 - Earliest claimed: 2017-06-22 - Assignees: Elcam Medical Agricultural Cooperative Association Ltd. - Applicants: Elcam Medical Agricultural Cooperative Association Ltd - Inventors: Gilad Mermelshtein; Hilel Yeshayahu; Ilan Shopen - Web page: https://patentgrep.com/patent/US11306832B2 ## CPC - F16K 11/0833: {having all the connecting conduits situated in a single plane perpendicular to the axis of the plug} - A61B 5/150992: {Blood sampling from a fluid line external to a patient, such as a catheter line, combined with an infusion line; Blood sampling from indwelling needle sets, e.g. sealable ports, luer couplings or valves} - A61M 5/16877: {Passive flow controllers; Devices for setting a flow rate (clamp-type valves A61M39/28)} - A61M 39/223: {Multiway valves} - F16K 11/0853: {having all the connecting conduits situated in a single plane perpendicular to the axis of the plug} - F16K 31/602: {Pivoting levers, e.g. single-sided (F16K31/605 takes precedence)} - A61M 1/3639: {Blood pressure control, pressure transducers specially adapted therefor} - A61M 39/045: {pre-slit to be pierced by blunt instrument} - A61M 39/229: {Single-way cut-off valves} - A61M 2039/2426: {Slit valve} - F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - 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 stopcock, comprising a housing element defining a central bore and at least first, second and third ports; and a handle element which is selectably positionable relative to the housing element; at least one of the housing element and the handle element defining: a first fluid flow passageway communicating between two of the at least first, second and third ports; a second fluid flow passageway communicating between at least two of the at least first, second and third ports, and a fluid flow guide associated with the second fluid flow passageway, the fluid flow guide extending radially towards an inner facing wall of the central bore. ## Claims ### Claim 1 A stopcock comprising: a housing element defining a central bore and at least first, second and third ports; and a handle element which is selectably positionable relative to said housing element, said handle element has a partially peripherally-extending recess, at least one of said housing element and said handle element defining: a first fluid flow passageway communicating between two of said at least first, second and third ports; a second fluid flow passageway communicating between at least two of said at least first, second and third ports, and a fluid flow guide associated with only said second fluid flow passageway, said fluid flow guide extending radially outwardly and bifurcating said recess; and wherein said fluid flow guide extends towards an inner facing wall of said central bore, and wherein said fluid flow guide comprises an outward facing edge which sealingly engages said inner facing wall of said central bore, and when said outward facing edge of said fluid flow guide is not located opposite any of said first, second and third ports, flow of liquid through said second fluid flow passageway is prevented and flow of liquid through said first fluid flow passageway is allowed. ### Claim 2 (depends on 1) The stopcock according to claim 1 and wherein said second fluid flow passageway being configured for enabling flushing an internal volume of at least one of said first, second and third ports by a fluid flow which does not flow entirely through said port whose internal volume is being flushed, and said first fluid flow passageway being configured for increasing a fluid flow rate between two of said at least first, second and third ports. ### Claim 3 (depends on 1) The stopcock according to claim 1 and wherein said fluid flow guide partially bifurcates said second fluid flow passageway. ### Claim 4 (depends on 1) The stopcock according to claim 1 and wherein said fluid flow guide comprises an outward facing edge which is slightly spaced from said inner facing wall of said central bore, and when said outward facing edge of said fluid flow guide is not located opposite any of said first, second and third ports, minimal flow of liquid through said second fluid flow passageway is allowed and flow of liquid through said first fluid flow passageway is allowed. ### Claim 5 (depends on 1) The stopcock according to claim 1 and wherein said handle element and said housing element being arrangeable in multiple mutual positions. ### Claim 6 (depends on 5) The stopcock according to claim 5 and wherein said fluid flow guide and said second fluid flow passageway being configured for enabling flushing an internal volume of at least one of said first, second and third ports by a fluid flow which does not flow entirely through said port whose internal volume is being flushed when said housing element and said handle element are in at least one of said multiple mutual positions. ### Claim 7 (depends on 5) The stopcock according to claim 5 and wherein said first fluid flow passageway and said second fluid flow passageway are operative simultaneously in at least one of said multiple mutual positions. ### Claim 8 (depends on 5) The stopcock according to claim 5 and wherein said first fluid flow passageway is fluidly connected with said second fluid flow passageway in at least one of said mutual positions. ### Claim 9 (depends on 5) The stopcock according to claim 5 and wherein said first fluid flow passageway is fluidly isolated from said second fluid flow passageway in at least one of said mutual positions. ### Claim 10 (depends on 1) The stopcock according to claim 1, also comprising a second fluid flow guide extending radially and partially bifurcating one of said at least one of the first, second and third ports, said second fluid flow guide being associated with at least one of said first fluid flow passageway and said second fluid flow passageway. ### Claim 11 (depends on 1) The stopcock according to claim 1 and wherein both said first fluid flow passageway and said second fluid flow passageway are defined by a shaft portion of said handle element. ### Claim 12 (depends on 11) The stopcock according to claim 11 and wherein said first fluid flow passageway is defined by at least one side-to-side extending bore formed within said shaft portion of said handle element. ### Claim 13 (depends on 12) The stopcock according to claim 12 and wherein said handle element has a partially peripherally-extending recess, selectably defining said second fluid flow passageway, said fluid flow guide extending radially and partially bifurcating said recess. ### Claim 14 (depends on 13) The stopcock according to claim 13 and wherein said at least one side-to-side extending bore is spaced from said recess. ### Claim 15 (depends on 13) The stopcock according to claim 13 and wherein said at least one side-to-side extending bore is interconnected with said recess. ### Claim 16 A stopcock comprising: a housing element defining a central bore and at least first, second and third ports, and a handle element, which is selectably positionable relative to said housing element, said handle element has a partially peripherally-extending recess, said housing element and said handle element being arrangeable in multiple mutual positions, at least one of said housing element and said handle element defining a first fluid flow passageway communicating between two of said at least first, second and third ports, and a second fluid flow passageway communicating between at least two of said at least first, second and third ports, selection of said ports being in accordance with a relative position of said handle element relative to said housing element; said first fluid flow passageway including a side-to-side extending bore extending through said handle, and said second fluid flow passageway including a fluid flow guide being associated with said second fluid flow passageway only, said fluid flow guide extending radially outwardly and partially bifurcating said recess; and wherein said fluid flow guide extends towards an inner facing wall of said central bore, and wherein said fluid flow guide comprising an outward facing edge which sealingly engages said inner facing wall of said central bore, and when said outward facing edge of said fluid flow guide is not located opposite any of said first, second and third ports, flow of liquid through said second fluid flow passageway is prevented and flow of liquid through said first fluid flow passageway is allowed. ### Claim 17 (depends on 16) The stopcock according to claim 16 and wherein said first fluid flow passageway and said second fluid flow passageway are operative simultaneously in at least one of said multiple mutual positions.