Fluid connector assembly

Abstract

The present disclosure relates to a fluid connector assembly for sealing a fluid path in a corresponding connector. When the connectors of the fluid connector assembly are connected to each other, respective compressible members in the connectors are displaced allowing downstream fluid to pass through the fluid connector assembly. The connectors may be coupled via a connection mechanism that provides a threshold retention force. When an external force greater than a threshold force is applied to the fluid connector assembly, the snap mechanism may no longer maintain the connectors together such that the connectors are separated from each other.

Description

Technical Field

[0001] The present disclosure generally relates to medical fluid connectors, and more particularly, to a fluid connector assembly that includes medical connectors that are capable of separating from each other due to an applied force, each medical connector being designed to automatically close their respective fluid paths. The separation may be due to an intentional or unintentional separation between the medical connectors. Background Art

[0002] A peripheral intravenous catheter (“PIVC”) is a medical tool that is inserted into a patient's peripheral vein to deliver a medical fluid to the patient. In an exemplary application, a medical fluid is delivered to the patient, and subsequently a medical professional removes the PIVC catheter from the patient's body. However, these catheters are often unintentionally displaced. For example, a catheter line that is subjected to an unexpected or accidental pulling force may pull on an intravenous (“IV”) fitting, thereby pulling the catheter out of the patient's body. In other cases, the catheter is accidentally removed from the patient and the medical professional. Unintentional or accidental displacement may result in patient blood loss, IV fluid loss, and IV fluid delivery delays. Summary of the Utility Model

[0003] According to at least some embodiments disclosed herein, it is recognized that an unintentional displacement or disconnection of a medical connection, such as a medical fluid line, may cause harm to a patient or a medical professional, such as by depriving the patient of medication, increasing the likelihood of patient infection, and exposing the medical professional to medication.

[0004] Aspects of the present disclosure provide a fluid connector assembly having medical connectors, each medical connector including one or more fluid paths that respond to an unintentional or accidental external force by separating from each other and sealing their respective fluid paths. The separation may include an automatic separation using a bellows or other elastically compressible member that decompresses and returns to its original shape when the external force is no longer applied thereto. Advantageously, the fluid connector assemblies described herein may limit or prevent patient blood loss, IV fluid loss, infection, and medical delivery delays. Additionally, aspects of the present disclosure provide a connection mechanism that facilitates connection of the fluid connector assembly in the event that the fluid connector assembly is separated.

[0005] According to some embodiments, a fluid connector assembly includes a first connector, a second connector, and a connection mechanism. The second connector may be configured to couple with the first connector and may include a snap member disposed at one end thereof. The connection mechanism may be coupled to the second connector for detachably coupling the first connector and the second connector. The connection mechanism may include a body having a passage extending therethrough for providing fluid communication between the first connector and the second connector, and at least one protrusion extending from one end of the body. When the connection mechanism is coupled to the second connector, at least a portion of the connection mechanism may be positioned within an opening of the snap member and secured by the protrusion. Additionally, actuation of the snap member may permit the connection mechanism to disconnect from the second connector.

[0006] In some embodiments, the connection mechanism is held coupled to the second connector by a threshold force, and wherein an external force greater than the threshold force is applied to at least one of the first connector and the second connector, the connection mechanism separates from the second connector. The external force may be a tensile force of at least five pounds.

[0007] In some embodiments, the snap member includes at least one snap arm extending from one end of the snap member, and actuation of the at least one snap arm permits the connection mechanism to separate from the second connector.

[0008] In some embodiments, the connection mechanism further includes a valve member disposed within the passage. When the first connector and the second connector are coupled, the valve member may be configured to permit fluid communication between the first connector and the second connector. When the first connector and the second connector are separated, the valve member may be configured to prevent fluid from flowing through the passage.

[0009] In some embodiments, the protrusion extends outwardly relative to a longitudinally extending central axis, and an outer surface profile of the protrusion corresponds to an inner profile of the opening of the snap member.

[0010] In some embodiments, at least a portion of the connection mechanism is coupled to an outer surface of the second connector. When a pulling surface greater than the threshold force is applied to the second connector in a direction along the central longitudinal axis, the connection mechanism may actuate the snap member such that the first connector and the second connector separate, and when the first connector and the second connector are separated, at least a portion of the connection mechanism remains coupled to the second connector.

[0011] In some embodiments, the fluid connector assembly is a closed system drug delivery device.

[0012] According to certain embodiments, a method of coupling a fluid connector connection assembly includes providing a first connector, a second connector configured to be coupled to the first connector, and a connection mechanism configured to couple the first connector and the second connector. The second connector may include a snap member disposed at one end thereof. The connection mechanism may include a body and at least one protrusion extending from one end of the body. The method may include coupling one end of the connection mechanism to the second connector such that at least a portion of the connection mechanism is disposed within an opening of the snap member; and coupling the first connector to an opposite end of the connection mechanism such that the first connector, the second connector, and the coupling mechanism are in fluid communication.

[0013] In some embodiments, coupling the end of the connection mechanism to the second connector includes positioning the protrusion within the opening of the snap member such that an outer surface of at least one protrusion abuts an inner surface of the snap member in a snap-fit configuration. Additionally, separating the connection mechanism from the second connector may include actuating the snap member to provide a gap between at least one protrusion and the inner surface, thereby allowing the connection mechanism to be removed from the opening.

[0014] In some embodiments, the connection mechanism is held coupled to the second connector by a threshold force, and the connection mechanism separates from the second connector when an external force greater than the threshold force is applied to at least one of the first connector and the second connector.

[0015] In some embodiments, the connection mechanism further includes a valve member disposed within a channel formed within the body of the connection mechanism. When the first connector and the second connector are coupled, the valve member may be configured to allow fluid communication between the first connector and the second connector. When the first connector and the second connector are separated, the valve member may be configured to prevent fluid from flowing through the channel.

[0016] According to certain embodiments, a fluid connector assembly includes a first connector, a second connector configured to be coupled to the first connector, and a connection mechanism for removably coupling the first connector and the second connector. The second connector may be a closed system having a snap member provided with at least one arm protruding from one end of the snap member. The connection mechanism may include a body having a channel extending therethrough for providing fluid communication between the first connector and the second connector, a valve member disposed within the channel for controlling fluid flow through the channel, a first protrusion extending from a first end of the body for coupling to the first connector, and a second protrusion extending from a second end of the body for coupling to the second connector. When the connection mechanism is coupled to the second connector, at least a portion of the connection mechanism may be positioned within an opening of the snap member and secured by the second protrusion. The connection mechanism may separate from the second connector when a separating force exceeds a predetermined threshold.

[0017] In some embodiments, the predetermined threshold is a pulling force of at least five pounds.

[0018] In some embodiments, the arm includes a first snap arm protruding from a first side of the second connector and a second snap arm protruding from a second side of the second connector opposite the first side. Additionally, actuation of the first snap arm and the second snap arm may allow the connection mechanism to separate from the second connector.

[0019] In some embodiments, when the first connector and the second connector are coupled, the valve member is configured to allow fluid communication between the first connector and the second connector, and when the first connector and the second connector are separated, the valve member is configured to prevent fluid from flowing through the channel.

[0020] In some embodiments, each of the first protrusion and the second protrusion extends outward relative to the longitudinally extending central axis of the connection mechanism. Additionally, the outer surface profile of the second protrusion may correspond to the inner profile of the opening of the snap member.

[0021] In some embodiments, the connection mechanism includes an annular member that is slidably disposed on the outer surface of the second connector and is configured to actuate the snap member. Additionally, when the separation force exceeds the predetermined threshold, the annular member may slide along the second connector until the annular member is disposed on at least one arm, thereby causing actuation of the snap member. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Various features of illustrative embodiments of the present invention are described below with reference to the drawings. The illustrated embodiments are intended to illustrate rather than limit the present invention. The drawings include the following figures:

[0023] Figure 1 An IV kit coupled to a patient is shown in accordance with aspects of the present disclosure.

[0024] Figure 2 A partial cross-sectional view of a connector of a fluid connector assembly is shown in accordance with aspects of the present disclosure.

[0025] Figures 3A - 3B A partial cross-sectional view of a connector of a fluid connector assembly is shown in accordance with aspects of the present disclosure.

[0026] Figure 4 A partial cross-sectional view of a fluid connector assembly is shown in accordance with aspects of the present disclosure.

[0027] Figures 5A - 5C A partial cross-sectional view of a connection mechanism of a fluid connector assembly is shown in accordance with aspects of the present disclosure.

[0028] Figure 6Shows a partial cross-sectional view of a fluid connector assembly in accordance with aspects of the present disclosure. Detailed Description

[0029] In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the subject technology. It should be understood that the subject technology may be practiced without these specific details. In other instances, well-known structures and techniques have not been shown in detail so as not to obscure the subject technology.

[0030] Furthermore, although this specification sets forth specific details of various embodiments, it should be understood that the specification is illustrative only and should not be construed in any way as limiting. Additionally, it is contemplated that although specific embodiments of the present disclosure may be disclosed or shown in the context of an IV set, these embodiments may be used in other fluid delivery systems. Moreover, various applications of such embodiments and their modifications that may occur to those skilled in the art are also included in the general concepts described herein.

[0031] According to some embodiments, the present disclosure includes various features and advantages of a fluid connector assembly having medical connectors (e.g., a closed system drug transfer device (CSTD)) that seal their respective fluid paths when the medical connectors are separated from each other. Additionally, the fluid connector assembly can be configured to prevent environmental contaminants from transferring into the system and to prevent hazardous drugs or vapor concentrations from escaping from the device. The medical connectors can each include a compressible member that decompresses in response to separation to provide an automatic seal of the respective fluid path. The fluid connector assembly can also include a connection mechanism for connecting the components of the fluid connector assembly while maintaining the closed system of the assembly. Moreover, the connection mechanism can be configured to disconnect from the connectors of the fluid connector assembly when a threshold tensile force is reached while preventing environmental contaminants from entering the system and also preventing the contained drugs or vapor from escaping, thereby protecting the closed system.

[0032] Now referring to the drawings, Figure 1 Shows an IV set 1 coupled to a patient 10 in accordance with aspects of the present disclosure. The IV set 1 includes a drug bag 12, a drip chamber 14, and tubing 22. The tubing 22 extends between the drip chamber 14 of the IV set 1 and a fluid connector assembly 100. To prevent the tubing 16 or catheter 18 from being accidentally removed or disconnected from the patient, a tape 26 is placed over the tubing 16 and catheter 18 such that the tape 26 engages the tubing 16, catheter 18, and patient 10.

[0033] Figure 2 Shows a perspective view of a fluid connector assembly 100 in accordance with aspects of the present disclosure. As a non-limiting example, the fluid connector assembly 100 is designed for medical applications such as an IV set 1 (as Figure 1as shown) and other IV medical fluid delivery applications using a catheter, including a PIVC catheter.

[0034] As shown, the fluid connector assembly 100 includes a connector 102 and a connector 104 coupled to the connector 102. The connector 102 and the connector 104 may be referred to as the first connector and the second connector, respectively. However, "first" and "second" may be interchanged. In addition, each of the connectors 102 and 104 may be referred to as a medical connector. When the connectors 102 and 104 are connected to each other as Figure 2 shown, a fluid path for medical fluid is established through the fluid connector assembly 100.

[0035] In some embodiments, the connector 104 is connected to a medical fluid (not shown). In addition, in some embodiments, the connector 102 is connected to a catheter line (not shown) that delivers the medical fluid to a catheter. In this regard, the connector 104 may include a fluid inlet 106, which serves as the fluid receiving location of the fluid connector assembly 100. In addition, the connector 102 may include a fluid outlet 108, which serves as the fluid transmission location of the fluid connector assembly 100.

[0036] To facilitate connection to the medical fluid, the connector 104 may include a luer fitting. In some embodiments, the luer fitting is a female luer fitting designed to mate with a male connector connected to the medical fluid. Similarly, to facilitate connection to the catheter line, the connector 102 may include a luer fitting. In some embodiments, the luer fitting is a male luer fitting designed to mate with a female luer fitting connected to the catheter line. Each luer fitting may comply with the standards established by the International Organization for Standardization ("ISO") to enhance patient safety, minimize leakage of medical fluid, and reduce misconnections with other connecting devices.

[0037] In addition, the connector 102 may include a strut 112 that passes through the center or at least approximately the center of the connector 102. The strut 112 may include a channel 114 that establishes the fluid outlet 108. Although the strut 112 is illustrated as cylindrical, the strut 112 is not so limited and may have any suitable shape.

[0038] The connector 102 may include a housing integrated with the luer fitting. The connector 102 may include a first end 102A having an integrated luer fitting and a second end 102B that is opposite the first end 102A and is configured to be coupled to a receiving ring 110. The second end 102B has a stepped profile with a protruding portion whose thickness is reduced relative to the thickness of the rest of the housing.

[0039] Connector 102 may include an outer surface 102C and an inner surface 102D. Connector 102 may include a hollow or substantially hollow body that houses one or more components. For example, in addition to strut 112, compressible member 116 may be received within connector 102. Connector 102 may also include a wall 120 that extends laterally through the interior of connector 102, thereby dividing the interior of connector 102 into separate cavities 122, 124. Strut 112 may be integrally formed with wall 120 and extend through each cavity 122, 124. Strut 112 may include an open first end 120A, a closed second end 120B opposite the first end 120A, and a passage 114 that extends through strut 112. The first end 120A may include an opening for passage 114 that forms a fluid outlet 108. The second end 120B of strut 112 may be a substantially closed end and include one or more holes, also referred to as flow windows 128.

[0040] Connector 102 may further include a receiving ring 110 disposed at and coupled to the second end 102B of connector 102. Receiving ring 110 may include a first end 110A configured to be coupled to the second end 102B and a second end 110B opposite the first end 110A. The first end 110A of receiving ring 110 may have a stepped profile having a protruding portion 130 that is complementary to a protruding portion of connector 102. The second end 110B of receiving ring 110 may include an opening 132. Receiving ring 110 may have an outer surface 110C and an inner surface 110D. Receiving ring 110 may include one or more notches 144 formed along the outer surface 110C.

[0041] As described above, connector 102 may include a compressible member 116 disposed within connector 102, also referred to as a silicone valve. Compressible member 116 may be disposed within cavity 124 and extend through receiving ring 110. Compressible member 116 has a first end 116A and a second end 116B, the first end being positioned adjacent to the surface of wall 120 and the second end being positioned within the opening 132 of receiving ring 110 and configured to engage a component of connector 104. The second end 116B may include an engagement surface 134. The engagement surface 134 may provide a flat or substantially flat surface that may be readily accessible for cleaning and disinfection. The engagement surface 134 may further include an opening 136. In some embodiments, the opening 136 may be formed as one or more slits or holes. Strut 112 may extend through compressible member 116. In other words, compressible member 116 may extend around the outer surface of strut 112. The second end 112B of strut 112 may be positioned within a region formed adjacent to the second end 112B of compressible member 116.

[0042] In some embodiments, the compressible member 116 includes a bellows that is capable of elastic compression. Thus, the compressible member 116 can be compressed by an external force and then return to its original uncompressed form when the external force is removed. The compressible member 116 can be designed to regulate fluid flow through the connector 102.

[0043] As Figure 2 shown, the connector 104 can be a CSTD, which includes a first end 104A configured to mate with the connector 102 upon connection and a second end 104B opposite the first end 104A. The connector 104 can include an outer surface 104C and an inner surface 104D. The connector can include a passage 138 extending through the interior of the connector 104. The connector 104 can further include a spring member 166 disposed within the interior of the connector 104.

[0044] In some embodiments, the connector 104 can further include a connector interface 140 coupled to the second end 104B of the connector 104. The connector interface 140 can include a first end 140A configured to be coupled to the connector 104 and a second end 140B opposite the first end 140A. The connector interface 140 can be securely coupled to the second end 104B of the connector 104 by any suitable means to prevent maintaining the closed state of the connector 104. For example, the connector interface 140 can be threadedly coupled to the second end 104B. The connector interface 140 can include a passage 142 extending through the connector interface 140 and providing access for the needle 20. In some embodiments, the connector interface 140 can provide a passage 142 that allows the needle 20 to be completely enclosed, thereby preventing needle exposure and accidental needlesticks. The connector interface 140 can include an outer surface 140C and an inner surface 140D. The outer surface 140C can further include one or more protrusions 146 extending radially from the outer surface 140C.

[0045] The connector 104 may further include a latching member 148, also referred to as a latching release. The latching member 148 may be disposed at the first end 104A of the connector 104. The latching member 148 may include a first end 148A, a second end 148B opposite the first end, an outer surface 148C, and an inner surface 148D. The latching member 148 may include a plurality of latching arms 150 positioned on the outer surface 148C of the latching member 148. In some embodiments, the latching arms 150 may be integrally formed with the latching member 148. In other embodiments, the latching arms 150 may be formed separately from the body of the latching member 148 and coupled by any suitable means. The latching arms 150 may include a first end 150A coupled to or integrally formed with the body of the latching member, and a second end 150B opposite the first end 150A. The second end 150B may be positioned adjacent to but spaced from the outer surface 104C of the connector 104 such that a gap 152 is formed between the inner surface of the latching arm 150 and the outer surface 104C of the connector 104. The latching arms 150 may be flexible such that the second end 150B may bend inwardly relative to the outer surface 104C to reduce the size of the gap 152 when separating the fluid connector assembly 100. The first end 148A of the latching arm may include an opening 156 for receiving the connection mechanisms 200, 300, 400, 500. The opening 156 may include sides 158 that form the perimeter of the opening 156. The shape and size of the sides 158 may correspond to a portion of the connection mechanisms 200, 300, 400, 500. Additionally, the sides 158 may be formed to have a profile with one or more notches or depressions for receiving the connection mechanisms 200, 300, 400, 500, which will be described in more detail below.

[0046] The connector 104 may include a valve assembly 160 coupled to the first end 104A of the connector 104. The valve assembly 160 may include a chamber 162 having one or more compressible members, also referred to as resilient plugs 164, disposed within the chamber 162. The size and shape of the valve assembly 160 may completely fill an opening formed at the first end 104A of the connector 104. In some embodiments, the valve assembly 160 is integrally formed with the connector 104. In other embodiments, the valve assembly 160 is formed separately and coupled to the connector 104 by any suitable means to maintain a closed system. For example, the valve assembly 160 may be threadably coupled. The valve assembly 160 may be coupled to the latching member 148 at opposite ends. In some embodiments, the valve assembly 160 is substantially received within the latching member 148.

[0047] As described above, the valve assembly 160 may include one or more compressible members 164. In some embodiments, the valve assembly 160 has a first compressible member 164A and a second compressible member 164B received in an internal cavity of the compartment 162. The first compressible member 164A may be positioned near the snap member 148, and the second compressible member 164B may be positioned opposite the first compressible member 164A. Fluid flowing through the fluid inlet 106 may pass through the compressible members 164A, 164B via holes formed within the compressible members 164A, 164B. Further, as Figure 2 shown, the compressible members 164A, 164B may be configured to allow the needle 20 to pass through the valve assembly 160 to provide drug delivery through the connector 104. In some embodiments, each of the compressible members 164A, 164B includes a bellows that is elastically compressible. Thus, the compressible members 164A, 164B may be compressed by an external force and then return to their original uncompressed form when the external force is removed. The compressible members 164A, 164B are designed to regulate fluid flow through the connector 104.

[0048] Based on Figure 2 the positions of the compressible members 164A, 164B shown in, the connector 104 may prevent fluid from flowing through. In other words, due to the positioning and expansion state of the compressible members 164A, 164B, fluid entering via the fluid inlet 106 may be blocked from passing through.

[0049] To facilitate fluid passage through the connectors 102, 104, when assembling the fluid connector assembly 100, the corresponding compressible members 116, 164A, 164B may be actuated or displaced to expose corresponding openings in the connectors 102, 104.

[0050] In some embodiments, a fluid including a medical fluid may flow downstream from the connector 104 through the fluid connector assembly 100 to the connector 102 within a closed system. The fluid may enter the fluid inlet 106 and then pass through the compressible members 164A, 164B. Then, the fluid may pass through the opening 128 of the strut 112 and then through the channel 126 of the strut 112. The fluid may leave the fluid connector assembly 100 through the fluid outlet 108.

[0051] As described above, the separation of the connectors 102 and 104 may be caused by an external force applied to one or more of the connectors 102 and 104, where the external force exceeds a threshold force required to maintain the connection between the connectors 102 and 104.

[0052] When the connectors 102, 104 are separated, the forces applied to the compressible members 116, 164 of the connectors 102, 104 respectively can be removed, such that the compressible members 116, 164 can decompress and expand, causing the compressible members 116, 164 to return to their original shapes. For example, during the expansion of the compressible member 116, the second end 116B of the compressible member 116 can move towards the second end 110B of the receiving ring 110 until the compressible member 116 has returned to its original shape, such that the second end 116B is positioned within the opening 132 of the receiving ring 110. Similarly, during the expansion of the compressible member 164, the first end 160A can move towards the first end 104A until the compressible member 164 has returned to its original shape, such that the first end is positioned within the opening of the connector 104. As a result, fluid may not be able to flow upstream through the connector 102 and through the opening formed in the strut 112.

[0053] Each of the compressible members 116 and 164 can be used as a valve to regulate the fluid passing through the fluid connector assembly 100. Based on their elastic, spring-like properties, each of the compressible members 116 and 164 can automatically return to their respective shapes when the external force no longer acts on them. Advantageously, the compressible members 116 and 164 can rebound in response to the separation between the connectors 102 and 104 to provide a relatively quick sealing effect. Thus, when integrating the fluid connector assembly 100 into an IV set and a catheter, based on one or more properties of the compressible members 116 and 164, blood loss, IV fluid loss, and drug delivery delay can be restricted or prevented.

[0054] In some embodiments, the fluid connector assembly 100 can further include connection mechanisms 200, 300, 400, 500 for coupling the connectors 102, 104.

[0055] Referring to FIG. 3, the connection mechanism 200 may include a body 202 composed of two halves 204, 206 (also referred to as the first side and the second side, respectively). Each of the first side 204 and the second side 206 may include a first end 204A, 206A, and second ends 204B, 206B that are opposite to the first ends 204A, 206A, respectively. The body 202 may further include a passage 208 extending therethrough for providing fluid communication between the connectors 102, 104. The connection mechanism 200 may include a valve disposed within the passage 208, also referred to as a plug member 210. The valve 210 may regulate the fluid flow through the passage 208. For example, when the connectors 102, 104 are coupled, the valve 210 may allow fluid to flow through the passage 208. Conversely, when the connectors 102, 104 are not coupled, the valve 210 may prevent fluid from flowing through the passage 208. The connection mechanism 200 may further include one or more protrusions 212, 214. In some embodiments, each of the first side 204 and the second side 206 includes a first protrusion 212 disposed on the first ends 204A, 206A and a second protrusion 214 disposed on the second ends 204B, 206B. The first protrusion 212 may be configured to be coupled to the connector 102. The first protrusion 212 may include an inwardly extending portion that projects towards the longitudinally extending central axis of the connection mechanism 200. The size and shape of the inwardly extending portion of the first protrusion 212 may correspond to the notch 144 of the receiving ring to couple the connection mechanism 200 to the connector 104. The second protrusion 214 may include an outwardly extending portion that projects away from the longitudinally extending central axis of the connection mechanism 200. The size and shape of the outwardly extending portion may correspond to the side portion 158 of the snap member 148.

[0056] To separate the connection mechanism 200 from the connector 104, the user may actuate the snap arm 150 by applying pressure to the snap arm 150, thereby providing a gap between the second protrusion 214 and the interior of the side portion 158 of the snap member 148. When sufficient gap has been provided, the user may remove the connection mechanism 200 from the connector 102.

[0057] Referring to Figure 4, the fluid connection assembly can include a connection mechanism 300. Similar to the above-described connection mechanism 200, the connection mechanism 300 can include a body 302 having two halves (also referred to as a first side 304 and a second side 306). Each of the first side 304 and the second side 306 can include a first end 304A, 306A, and second ends 304B, 306B respectively opposite the first ends 304A, 306A. The body 302 can also include a passage 308 extending therethrough for providing fluid communication between the connectors 102, 104. The connection mechanism 300 can include a valve disposed within the passage 308, also referred to as a check valve 310. The valve 310 can regulate the fluid flow through the passage 308. For example, when the connectors 102, 104 are coupled, the valve 310 can allow fluid to flow through the passage 308. Conversely, when the connectors 102, 104 are not coupled, the valve 310 can prevent fluid from flowing through the passage 308. The connection mechanism 300 can also include one or more protrusions 312, 314. In some embodiments, each of the first side 304 and the second side 306 includes a first protrusion 312 disposed on the first ends 304A, 306A and a second protrusion 314 disposed on the second ends 304B, 306B. The first protrusion 312 can be configured to be coupled to the connector 102. The first protrusion 312 can include an outwardly extending portion that projects toward a central axis extending longitudinally of the connection mechanism 300. The size and shape of the first protrusion 312 can correspond to the opening 132 of the receiving ring 110. When the connection mechanism 300 is coupled to the connector 102, one end of the first protrusion 312 can contact the compressible member 116. The first protrusion can assist in compressing the compressible member 116 to allow fluid flow. The second protrusion 314 can include an outwardly extending portion that projects away from a central axis extending longitudinally of the connection mechanism 300. The size and shape of the outwardly extending portion can correspond to the side portion 158 of the snap member 148.

[0058] As described above with respect to the connection mechanism 200, to separate the connection mechanism 300 from the connector 104, a user can actuate the snap arm 150 by applying pressure to the snap arm 150 to provide sufficient clearance between the second protrusion 314 and the interior of the side portion 158 of the snap member 148.

[0059] Reference Figures 5A - 5C, the connection mechanism 400 may include a body 402 disposed on the outer surface 104C of the connector 104. The connection mechanism 400 may include a first end 402A disposed near the latching member 148 and a second end 402B opposite the first end 402A and disposed near the connector interface 140. The first end 402A may include a ring 404 that surrounds at least a portion of the latching arm 150. The size of the ring 404 may be set such that there is only a small gap between the inner surface of the ring 404 and the outer surface of the latching arm 150. The second end 402B may include a coupling cavity 406 and may surround the connector interface 140. The coupling cavity 406 may be coupled to the tubing 22 of the IV set 1. The coupling cavity 406 may be coupled by any suitable means, including but not limited to gluing. The body 402 may further include one or more notches or detents 408 to cooperate with the protrusions 146 of the connector interface 140 to further secure the connection mechanism 400 to the connector 104. In some embodiments, most of the connector 104 is not surrounded by the connection mechanism 400. The connection mechanism 400 may be configured to slide a certain distance along the connector 104.

[0060] The connection mechanism 400 may work together with the connection mechanism 300. When assembled, the connection mechanism 400 is secured to the connector 104, with the ring 404 disposed near the first end 148A of the latching member 148. At the same time, as described above, the connection mechanism 300 may be coupled to the connectors 102, 104 to provide fluid communication between the connectors 102, 104. When the tubing 22 is pulled with sufficient force in the direction away from the second end 104B of the connector 104, the connection mechanism 400 may slide relative to the connector 104. In particular, the ring 404 may slide from the first end 150A to the second end 150B along the direction of the latching arm 150. When the latching arm 150 is tilted in the direction away from the central longitudinal axis of the connector 104, the ring 404 may slide until the inner surface of the ring 404 abuts the outer surface of the latching arm 150 and is prevented from further movement due to friction. When the ring 404 reaches this stop point (which may be near the second end 150B), the pressure applied from the ring 404 may compress the latching arm 150, thereby separating the connection mechanism 300 from the opening 156 of the latching member 148.

[0061] If a user desires to purposefully separate the connection mechanism 300 from the connector 104, the user may perform the steps described above with respect to the connection mechanisms 200, 300. In other words, the user may actuate the latch arm 150 by applying pressure to the latch arm 150 to provide sufficient clearance between the second protrusion 314 and the interior of the side 158 of the latch member 148. Alternatively, the user may pull on the connection mechanism 400 from a location near the second end 402B until the loop 404 provides sufficient force to the latch arm 150 to separate the connection mechanism 300.

[0062] Reference Figure 6 , the connection mechanism 500 may include a body 502 having a first end 502A configured to be coupled to the connector 102 and a second end 502B opposite the first end 502A and configured to be coupled to the connector 104. The body 502 may also include a passage 504 extending therethrough for providing fluid communication between the connectors 102, 104. The passage 504 may include a forward portion 506 for receiving a valve disposed within the forward portion 506, also referred to as a plug member 508. As described above with respect to the connection mechanism 200, the valve 508 may regulate fluid flow through the passage 504. The connection mechanism 500 may also include a protrusion 510 disposed at the second end 502B. The protrusion 510 may be formed as a male Luer fitting and configured to contact and couple to the connector 102. When the connection mechanism 500 is coupled to the connector 102, one end of the protrusion 510 may contact the compressible member 116. The first protrusion may assist in compressing the compressible member 116 to allow fluid flow. The size and shape of the forward portion 506 may be configured to be received within the opening 156 of the latch member 148.

[0063] The connection mechanism 500 can be separated in the same manner as described above with respect to the connection mechanisms 200, 300, 400. In other words, the user may apply pressure to the latch arm 150 to provide sufficient clearance to remove the connection mechanism 500 from within the latch member.

[0064] In use, the coupling mechanisms 200, 300, 400, 500 and the connector 104 can remain coupled until acted upon by a separating force. The separating force can pull the connector 102 away from the connector 104 and the coupling mechanisms 200, 300, 400, 500, or pull the connector 104 and the coupling mechanisms 200, 300, 400, 500 away from the connector 102. When the connectors 102, 104 and the coupling mechanisms 200, 300, 400, 500 are coupled, the separating force can act along the central axis of the connectors and the coupling mechanisms. The separating force can be a resultant force acting along the central axis of the connectors and the coupling mechanisms when the connectors 102, 104 and the coupling mechanisms 200, 300, 400, 500 are coupled, or a force acting on the connectors 102, 104 or a force acting on the coupling mechanisms 200, 300, 400, 500, or a force acting on the first part or the second part of the pipe fitting.

[0065] When the separating force exceeds a predetermined threshold force, the separating force can separate the coupling mechanisms 200, 300, 400, 500 from the connector 104. For example, if the separating force is less than the predetermined threshold force, the coupling mechanisms 200, 300, 400, 500 may not be separated from the connector 104. The predetermined threshold force prevents unintentional or accidental separation based on minor forces or movements. When the connectors 102, 104 are inadvertently separated, the coupling mechanisms 200, 300, 500 can remain coupled to the connector 102.

[0066] In some embodiments, the predetermined threshold force is approximately 5 pounds (lbs). The predetermined threshold force can range from approximately 1 lb to approximately 8 lbs, approximately 3 lbs to approximately 7 lbs, approximately 4 lbs to approximately 6 lbs, or greater than 8 lbs.

[0067] Features of the present disclosure provide a first compressible member and a second compressible member that can be used as valves to regulate the fluid passage therebetween. The first compressible member and the second compressible member are respectively located in a first connector and a second connector. If the first connector and the second connector are separated, whether inadvertently or intentionally, the fluid passages for each of the first compressible member and the second compressible member are closed or blocked to prevent fluid loss therefrom. Features of the present disclosure also provide that when the first compressible member and the second compressible member are separated, either the first compressible member or the second compressible member can be cleaned and disinfected, and the first compressible member and the second compressible member can be coupled together again to form a fluid passage therebetween.

[0068] Explanatory articles of the subject technology

[0069] For example, aspects of the present subject matter are illustrated in accordance with various aspects described below. For convenience, various examples of aspects of the subject matter are described in numbered clauses (1, 2, 3, etc.). These are provided only as examples and do not limit the present subject matter. It should be noted that any dependent clauses can be combined in any combination and placed within the corresponding independent clause, such as clause 1, clause 11, clause 17, clause 23, clause 26, or clause 29. Other clauses can be presented in a similar manner.

[0070] Clause 1 A fluid connector assembly, comprising: a first connector; a second connector configured to be coupled to the first connector, the second connector having a snap member disposed at one end of the second connector; and a connection mechanism coupled to the second connector for detachably coupling the first connector and the second connector, the connection mechanism comprising: a body having a passage extending therethrough for providing fluid communication between the first connector and the second connector; and at least one protrusion extending from one end of the body, wherein when the connection mechanism is coupled to the second connector, at least a portion of the connection mechanism is positioned within an opening of the snap member and is fixed by the at least one protrusion, and wherein actuation of the snap member allows the connection mechanism to disconnect from the second connector.

[0071] Clause 2 The fluid connector assembly according to the above, wherein the connection mechanism is held coupled to the second connector by a threshold force, and wherein when an external force greater than the threshold force is applied to at least one of the first connector and the second connector, the connection mechanism separates from the second connector.

[0072] Clause 3 The fluid connector assembly according to the above, wherein the external force is a tensile force of at least five pounds.

[0073] Clause 4 The fluid connector assembly according to the above, wherein the snap member includes at least one snap arm extending from one end of the snap member, and wherein actuation of the at least one snap arm allows the connection mechanism to separate from the second connector.

[0074] Clause 5 The fluid connector assembly according to the above, wherein the connection mechanism further includes a valve member disposed within the passage, and wherein when the first connector and the second connector are coupled, the valve member is configured to allow fluid communication between the first connector and the second connector, and wherein when the first connector and the second connector are separated, the valve member is configured to prevent fluid from flowing through the passage.

[0075] Clause 6. The fluid connector assembly according to the above, wherein the at least one protrusion extends outward relative to the longitudinally extending central axis, and wherein the outer surface profile of the at least one protrusion corresponds to the inner profile of the opening of the snap member.

[0076] Clause 7. The fluid connector assembly according to the above, wherein at least a portion of the connection mechanism is coupled to the outer surface of the second connector, and wherein when a tensile force greater than a threshold force is applied to the second connector in a direction along the central longitudinal axis, the connection mechanism actuates the snap member, thereby separating the first connector and the second connector, and wherein when the first connector and the second connector are separated, at least a portion of the connection mechanism remains coupled to the second connector.

[0077] Clause 8. The fluid connector assembly according to the above, wherein the fluid connector assembly is a closed system drug delivery device, and the at least one protrusion includes: a first protrusion extending from a first end of the body of the connection mechanism for coupling to the first connector; and a second protrusion extending from a second end of the body of the connection mechanism for coupling to the second connector. Clause 9. A method of coupling a fluid connector assembly, the method comprising:

[0078] Providing a first connector; providing a second connector configured to be coupled to the first connector, the second connector having a snap member disposed at one end of the second connector; providing a connection mechanism configured to couple the first connector and the second connector, the connection mechanism including a body and at least one protrusion extending from one end of the body; coupling one end of the connection mechanism to the second connector such that at least a portion of the connection mechanism is disposed within the opening of the snap member; and coupling the first connector to the opposite end of the connection mechanism such that the first connector, the second connector, and the coupling mechanism are in fluid communication.

[0079] Clause 10. The method according to the above, wherein coupling the end of the connection mechanism to the second connector includes positioning the at least one protrusion within the opening of the snap member such that the outer surface of the at least one protrusion abuts the inner surface of the snap member in a snap-fit configuration.

[0080] Clause 11. The method according to the above, wherein separating the connection mechanism from the second connector includes actuating the snap member to provide a gap between the at least one protrusion and the inner surface, thereby allowing the connection mechanism to be removed from the opening.

[0081] Clause 12 According to the method described above, wherein the connecting mechanism is held coupled to the second connector by a threshold force, and wherein when an external force greater than the threshold force is applied to at least one of the first connector and the second connector, the connecting mechanism separates from the second connector.

[0082] Clause 13 According to the method described above, wherein the connecting mechanism further includes a valve member disposed within the passageway formed within the body of the connecting mechanism, and wherein when the first connector and the second connector are coupled, the valve member is configured to permit fluid communication between the first connector and the second connector, and wherein when the first connector and the second connector are separated, the valve member is configured to prevent fluid from flowing through the passageway.

[0083] Clause 14 A fluid connector assembly comprising: a first connector; a second connector configured to be coupled to the first connector, the second connector being a closed system including a snap member having at least one arm projecting from one end thereof; a connecting mechanism for removably coupling the first connector and the second connector, the connecting mechanism including: a body having a passageway extending therethrough for providing fluid communication between the first connector and the second connector; a valve member disposed within the passageway for controlling fluid flow through the passageway; a first projection extending from a first end of the body for coupling to the first connector; and a second projection extending from a second end of the body for coupling to the second connector, wherein when the connecting mechanism is coupled to the second connector, at least a portion of the connecting mechanism is positioned within an opening of the snap member and secured by the second projection, and wherein when a separation force exceeds a predetermined threshold, the connecting mechanism separates from the second connector.

[0084] Clause 15 According to the fluid connector assembly described above, wherein the predetermined threshold is a tensile force of at least five pounds.

[0085] Clause 16 According to the fluid connector assembly described above, wherein the at least one arm includes a first snap arm projecting from a first side of the second connector and a second snap arm projecting from a second side of the second connector opposite the first side, and wherein actuation of the first snap arm and the second snap arm permits separation of the connecting mechanism from the second connector.

[0086] Item 17. A fluid connector assembly as described above, wherein when the first connector and the second connector are coupled, the valve member is configured to permit fluid communication between the first connector and the second connector, and wherein when the first connector and the second connector are separated, the valve member is configured to prevent fluid from flowing through the passageway.

[0087] Item 18. A fluid connector assembly as described above, wherein each of the first protrusion and the second protrusion extends outwardly relative to a longitudinally extending central axis of the coupling mechanism, and wherein an outer surface profile of the second protrusion corresponds to an inner profile of an opening of the snap member.

[0088] Item 19. A fluid connector assembly as described above, wherein the coupling mechanism includes an annular member that is slidably disposed on an outer surface of the second connector and is configured to actuate the snap member.

[0089] Item 20. A fluid connector assembly as described above, wherein when a separation force exceeds a predetermined threshold, the annular member slides along the second connector until the annular member is disposed on the at least one arm, thereby causing actuation of the snap member.

[0090] Additional Considerations

[0091] In some embodiments, any one of the items herein can depend on any one of the independent items or any one of the dependent items. In one aspect, any one of the items (e.g., a dependent item or an independent item) can be combined with any other one or more items (e.g., a dependent item or an independent item). In one aspect, a claim can include some or all of the words (e.g., steps, operations, means, or components) recited in an item, sentence, phrase, or paragraph. In one aspect, a claim can include some or all of the words recited in one or more items, sentences, phrases, or paragraphs. In one aspect, some of the words in each of the items, sentences, phrases, or paragraphs can be removed. In one aspect, additional words or elements can be added to the items, sentences, phrases, or paragraphs. In one aspect, the subject technology can be practiced without utilizing some of the components, elements, functions, or operations described herein. In one aspect, the subject technology can be practiced utilizing additional components, elements, functions, or operations.

[0092] This disclosure is provided to enable a person having ordinary skill in the art to practice the various aspects described herein. This disclosure provides various examples of the subject technology, and the subject technology is not limited to these examples. Numerous modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects.

[0093] Unless otherwise specified, the use of an element in the singular is not intended to mean "one and only one" but "one or more." Unless otherwise specified, the term "some" means one or more. Masculine pronouns (e.g., "his") include feminine and neuter genders (e.g., "her" and "its"), and vice versa. The use of headings and subheadings (if any) is for convenience only and does not limit the disclosure.

[0094] The word "exemplary" is used herein to mean "serving as an example or illustration." Any aspect or design described herein as "exemplary" need not be construed as preferred or advantageous over other aspects or designs. In one aspect, the various alternative configurations and operations described herein may be considered to be at least equivalent.

[0095] Phrases such as "an aspect" do not mean that such an aspect is essential to the claimed subject matter or that such an aspect applies to all configurations of the claimed subject matter. The disclosure associated with an aspect may apply to all configurations or one or more configurations. An aspect may provide one or more examples. The phrase "an aspect" may refer to one or more aspects, and vice versa. Phrases such as "an embodiment" do not mean that such an embodiment is essential to the claimed subject matter or that such an embodiment applies to all configurations of the claimed subject matter. The disclosure associated with an embodiment may apply to all embodiments or one or more embodiments. An embodiment may provide one or more examples. The phrase "an embodiment" may refer to one or more embodiments, and vice versa. Phrases such as "a configuration" do not mean that such a configuration is essential to the claimed subject matter or that such a configuration applies to all configurations of the claimed subject matter. The disclosure associated with a configuration may apply to all configurations or one or more configurations. A configuration may provide one or more examples. The phrase "such a configuration" may refer to one or more configurations, and vice versa.

[0096] In one aspect, unless otherwise indicated, all measurements, values, ratings, positions, sizes, dimensions, and other specifications set forth in this specification, including those set forth in the appended claims, are approximate and not exact. In one aspect, they are intended to have a reasonable range consistent with the functions to which they pertain and with the practices of the field to which they belong.

[0097] In one aspect, terms such as "coupled" may refer to direct coupling. In another aspect, terms such as "coupled" may refer to indirect coupling.

[0098] Terms such as "top", "bottom", "front", "rear", etc. as used in this disclosure should be understood to refer to any reference system rather than the ordinary gravity reference system. Thus, the top surface, bottom surface, front surface, and rear surface can extend upward, downward, diagonally, or horizontally in the gravity reference system.

[0099] Without departing from the scope of the subject technology, various items can be arranged differently (e.g., in a different order or divided in a different way). All structural and functional equivalents of the elements of the various aspects described throughout this disclosure are known to those of ordinary skill in the art or will later become known to those of ordinary skill in the art, which are expressly incorporated herein by reference and are intended to be covered by the claims. Additionally, nothing disclosed herein is dedicated to the public, whether or not such disclosure is explicitly recited in the claims. Under the provisions of 35 U.S.C. § 112, paragraph six, an element of a claim will not be construed unless the element is clearly recited using the phrase "means" or, in the case of a method claim, using the phrase "step for...". Further, for the scope of the terms "comprising", "having", etc. used, such terms are intended to be inclusive in a manner similar to the term "comprising" as interpreted when used as a transitional term in a claim.

[0100] The title, background art, utility model content, description of the drawings, and abstract of this disclosure are hereby incorporated into this disclosure and are provided as illustrative examples of this disclosure, rather than restrictive descriptions. This application is filed based on the understanding that they will not be used to limit the scope or meaning of the claims. Additionally, in the detailed description, it can be seen that the description provides illustrative examples and, to simplify this disclosure, various features are combined in various embodiments. This disclosure method should not be construed as reflecting an intention that the claimed subject matter requires more features than are explicitly recited in each claim. Instead, as reflected in the following claims, the utility model subject matter lies in less than all the features of a single disclosed construction or operation. The following claims are thus incorporated into the detailed description, with each claim standing alone as a separately claimed subject matter.

[0101] The claims are not intended to be limited to the aspects described herein, but rather conform to the full scope consistent with the language of the claims and include all legal equivalents. Nevertheless, no claim is intended to cover subject matter that fails to meet the requirements of 35 U.S.C. § 101, 102, or 103, nor should they be construed in such a way.

Claims

1. A fluid connector assembly, characterized in that, It includes: A first connector; A second connector configured to be coupled to the first connector, the second connector having a snap member disposed at one end thereof; And A connection mechanism coupled to the second connector for detachably coupling the first and second connectors, the connection mechanism including: A body having a passage extending therethrough for providing fluid communication between the first and second connectors; and At least one protrusion extending from one end of the body, Wherein, when the connection mechanism is coupled to the second connector, at least a portion of the connection mechanism is positioned within the opening of the snap member and is fixed by the at least one protrusion, and Wherein actuation of the snap member allows the connection mechanism to disconnect from the second connector.

2. The fluid connector assembly according to claim 1, wherein The connection mechanism is held coupled to the second connector by a threshold force, and Wherein, when an external force greater than the threshold force is applied to at least one of the first and second connectors, the connection mechanism separates from the second connector.

3. The fluid connector assembly according to claim 2, wherein The external force is a tensile force of at least five pounds.

4. The fluid connector assembly according to claim 1, wherein, The snap member includes at least one snap arm extending from one end of the snap member, and Wherein actuation of the at least one snap arm allows the connection mechanism to separate from the second connector.

5. The fluid connector assembly according to claim 1, wherein The connection mechanism further includes a valve member disposed within the passage, and Wherein, when the first and second connectors are coupled, the valve member is configured to allow fluid communication between the first and second connectors, and Wherein, when the first and second connectors are separated, the valve member is configured to prevent fluid from flowing through the passage.

6. The fluid connector assembly according to claim 1, wherein, The at least one protrusion extends outwardly relative to a longitudinally extending central axis, and Wherein the outer surface profile of the at least one protrusion corresponds to the inner profile of the opening of the snap member.

7. The fluid connector assembly according to claim 1, characterized in that, At least a portion of the connection mechanism is coupled to the outer surface of the second connector, Wherein, when a tensile force greater than the threshold force is applied to the second connector in a direction along the central longitudinal axis, the connection mechanism actuates the snap member, thereby separating the first and second connectors, and Wherein, when the first and second connectors are separated, at least a portion of the connection mechanism remains coupled to the second connector.

8. The fluid connector assembly according to claim 1, wherein The fluid connector assembly is a closed system drug delivery device.

9. A fluid connector assembly, characterized in that, It includes: A first connector; A second connector configured to be coupled to the first connector, the second connector being a closed system including a snap member having at least one arm protruding from one end of the snap member; A connection mechanism for detachably coupling the first and second connectors, the connection mechanism including: A body having a passage extending therethrough for providing fluid communication between the first and second connectors; A valve member disposed within the passage for controlling fluid flow through the passage; A first protrusion extending from a first end of the body for coupling to the first connector; and A second protrusion extending from a second end of the body for coupling to the second connector, wherein when the connection mechanism is coupled to the second connector, at least a portion of the connection mechanism is positioned within the opening of the snap member and secured by the second protrusion, and wherein when the separation force exceeds a predetermined threshold, the connection mechanism separates from the second connector.

10. The fluid connector assembly according to claim 9, wherein, The predetermined threshold is a tensile force of at least five pounds.

11. The fluid connector assembly according to claim 9, wherein The at least one arm includes a first snap arm protruding from a first side of the second connector and a second snap arm protruding from a second side of the second connector opposite the first side, and wherein actuation of the first snap arm and the second snap arm allows the connection mechanism to separate from the second connector.

12. The fluid connector assembly according to claim 9, wherein, When the first connector and the second connector are coupled, the valve member is configured to allow fluid communication between the first connector and the second connector, and wherein when the first connector and the second connector are separated, the valve member is configured to prevent fluid from flowing through the passage.

13. The fluid connector assembly according to claim 9, characterized in that, Each of the first protrusion and the second protrusion extends outwardly relative to a longitudinally extending central axis of the connection mechanism, and wherein an outer surface profile of the second protrusion corresponds to an inner profile of the opening of the snap member.

14. The fluid connector assembly according to claim 9, wherein The connection mechanism includes an annular member slidably disposed on an outer surface of the second connector and configured to actuate the snap member.

15. The fluid connector assembly according to claim 14, wherein When the separation force exceeds a predetermined threshold, the annular member slides along the second connector until the annular member is disposed on the at least one arm, thereby causing actuation of the snap member.

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