# US 12,502,518 B2 · Fluid connector system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,502,518 B2 - Document ID: US12502518B2 - Status: Granted - Kind: B2 - Application number: 18/166,968 - Filed: 2023-02-09 - Published: 2023-10-12 - Granted: 2025-12-23 - Earliest claimed: 2022-04-07 - Assignees: CareFusion 303, Inc. - Applicants: CareFusion 303, Inc. - Inventors: Amarsinh Deeliprao Jadhav; Sumit Rajpal; Kaushik Suman; Kanjimpuredathil Muralikrishna Menon; Mohammed Mehtab Khan - Web page: https://patentgrep.com/patent/US12502518B2 ## CPC - A61M 39/1011: {Locking means for securing connection; Additional tamper safeties (A61M39/16 takes precedence)} - A61M 39/22: Valves or arrangement of valves {(A61M39/02, A61M39/0247, A61M39/16 take precedence; regulating valves in infusion systems A61M5/16881; in devices worn by the patient for the reception of urine, faeces, catamenial or other discharge, or in colostomy devices A61F5/4405)} - A61M 2039/2486: {Guided stem, e.g. reciprocating stopper} - A61M 2039/268: {wherein the stem portion is moved for opening and closing the valve, e.g. by translation, rotation} - 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 Fluid connector systems that can include first and second valve assemblies that are couplable together to form a fluid pathway through the fluid connector system when the first and second valve assemblies are coupled together, and can resist fluid flow through each of the first and second valve assemblies when the first and second valve assemblies are separated from each other, where the first and second valve assemblies can include a compressible element or post positioned within a channel and configured resist fluid flow through the respective first or second valve assembly in a first position and to reduce the resistance to fluid flow through the first or second valve assembly in a second position, and the first and second valve assemblies including a sleeve and one or more arm configured to engage each other to form a snap fitting feature that can resist separation therebetween. ## Claims ### Claim 1 A fluid connector system comprising: a first valve assembly comprising: a housing having a first port, a second port, an inner surface forming a channel that extends between the first and second ports, and a sleeve that extends along and spaced apart from an outer surface of the housing, the sleeve having an inner surface comprising a ridge at a distal end portion of the sleeve and extending in a direction toward the housing; and a valve element having a base and a head, wherein the valve element is positioned within the channel such that the head obstructs the channel through the second port of the housing when the first valve assembly is in a closed configuration, and the head is moved away from the second port of the housing, in a direction toward the first port of the housing, to permit a fluid flow through the channel when the first valve assembly is in an open configuration; a second valve assembly comprising: a body having a first port, a male luer structure forming a second port, and an inner surface forming a channel that extends between the first and second ports, and one or more arm that extends from the body in a direction away from the first port of the body and along the male luer structure, the one or more arm having an outer surface comprising a protrusion at a distal end portion of the one or more arm and extending in a direction away from the outer surface of the body and an inner surface spaced apart from an outer surface of the male luer structure; a post positioned in the channel and movable between the first and second ports of the body; and a biasing element positioned between the post and the first port of the body, such that the post is urged toward the second port of the body to obstruct the channel through the second port of the body when the second valve assembly is in a closed configuration, and the post is moved away from the second port of the body, in a direction toward the first port of the body, to compress the biasing element and permit a fluid flow through the channel when the second valve assembly is in an open configuration; wherein, when the first and second valve assemblies are coupled together, the one or more arm is positioned between the inner surface of the sleeve and the outer surface of the housing, and the protrusion is positioned between the ridge and the second port of the housing, such that engagement of the protrusion against the ridge resists separation of the first and second valve assemblies. ### Claim 2 (depends on 1) The fluid connector system of claim 1, wherein an outermost surface of the one or more arm comprises a first cross-sectional width, and an innermost surface of the sleeve comprises a second cross-sectional width, and wherein the first cross-sectional width is larger than the second cross-sectional width. ### Claim 3 (depends on 1) The fluid connector system of claim 1, wherein the sleeve comprises a distal end having a discontinuous perimeter. ### Claim 4 (depends on 3) The fluid connector system of claim 3, wherein the discontinuous perimeter of the sleeve is formed by a notch extending through the sleeve at the distal end thereof. ### Claim 5 (depends on 1) The fluid connector system of claim 1, wherein the outer surface of the housing comprises a thread proximal to the second port of the housing. ### Claim 6 (depends on 1) The fluid connector system of claim 1, wherein the ridge of the sleeve is formed by a groove that extends into the inner surface of the sleeve, in a direction away from a longitudinal axis defined between the first and second ports of the housing. ### Claim 7 (depends on 1) The fluid connector system of claim 1, wherein the one or more arm comprises a first arm and a second arm, and wherein the first and second arms are circumferentially spaced apart around a longitudinal axis defined between the first and second ports of the body. ### Claim 8 (depends on 1) The fluid connector system of claim 1, wherein the protrusion comprises a height from the outer surface of the body to a distal end of the protrusion, and wherein the height is between approximately 0.039 inch (1 mm) to about 0.08 inch (2 mm). ### Claim 9 (depends on 8) The fluid connector system of claim 8, wherein the height of the protrusion is approximately 0.039 inch (1 mm). ### Claim 10 (depends on 1) The fluid connector system of claim 1, wherein the protrusion comprises a first end surface and a second end surface, and wherein any of the first end surface and the second end surface extends away from the arm at an angle that is between approximately 40-70 degrees relative to the arm. ### Claim 11 (depends on 10) The fluid connector system of claim 10, wherein any of the first and second end surfaces extends away from the arm at an angle that is between approximately 40 degrees relative to the arm. ### Claim 12 (depends on 1) The fluid connector system of claim 1, wherein the one or more arm comprises a length from the body to a distal end of the one or more arm, and wherein the length is between approximately 0.19 inch (5 mm) to about 0.31 inch (8 mm). ### Claim 13 (depends on 1) The fluid connector system of claim 1, wherein the one or more arm comprises a width that extends circumferentially around a longitudinal axis defined between the first and second ports of the body, and wherein the width is between approximately 0.07 inches (2 mm) to about 0.19 inch (5 mm). ### Claim 14 A fluid connector system comprising: a first valve assembly comprising: a housing having a first port, a second port, an inner surface forming a channel that extends between the first and second ports of the housing, and a sleeve extending along and spaced apart from an outer surface of the housing, a distal end portion of the sleeve comprising a ridge; and a valve positioned in the channel and configured to obstruct a portion of the channel through the second port of the housing; and a second valve assembly comprising: a body having a first port, a male luer structure forming a second port, an inner surface forming a channel that extends between the first and second ports, and a post that is positioned in the channel along the male luer structure and urged toward the second port of the body by a biasing element between the post and the first port, and one or more arm that extends from the body and along the male luer structure, the one or more arm having an outer surface and an inner surface, the inner surface of the one or more arm spaced apart from an outer surface of the male luer structure, and the outer surface of the one or more arm having a distal end portion comprising a protrusion configured to engage against the ridge of the sleeve when the second port of the body is engaged against the second port of the housing. ### Claim 15 (depends on 14) The fluid connector system of claim 14, wherein the ridge extends toward a longitudinal axis defined between the first and second ports of the housing. ### Claim 16 (depends on 14) The fluid connector system of claim 14, wherein an outermost surface of the one or more arm comprises a first cross-sectional width, and an innermost surface of the sleeve comprises a second cross-sectional width, and wherein the first cross-sectional width is larger than the second cross-sectional width. ### Claim 17 (depends on 14) The fluid connector system of claim 14, wherein the sleeve comprises a distal end having a discontinuous perimeter. ### Claim 18 (depends on 14) The fluid connector system of claim 14, wherein the one or more arm comprises a first arm and a second arm, and wherein the first and second arms are circumferentially spaced apart around a longitudinal axis defined between the first and second ports of the body. ### Claim 19 A method providing a fluid connector system, the method comprising: providing a first valve assembly comprising a housing having a first port, a second port, an inner surface forming a channel that extends between the first and second ports of the housing, and a sleeve that extends from an outer surface of the housing, the sleeve having an inner surface comprising a ridge at a distal end portion of the sleeve; providing a second valve assembly comprising a body having a first port, a male luer structure forming a second port, an inner surface forming a channel that extends between the first and second ports of the body, and a post that is positioned in the channel along the male luer structure and is urged toward the second port of the body by a biasing element between the post and the first port, and one or more arm that extends from the body with an inner surface of the one or more arm spaced apart from an outer surface of the male luer structure, and an outer surface of the one or more arm comprising a distal end portion having a protrusion; and moving the first and second valve assemblies toward each other such that the second port of the housing engages against the second port of the body, and the protrusion of the one or more arm of the body is inserted between the outer surface of the housing and the inner surface of the sleeve. ### Claim 20 (depends on 19) The method of claim 19, further comprising moving the first and second valve assemblies toward each other until the protrusion of the one or more arm is positioned between the ridge of the sleeve and the second port of the housing.