Valve plug for fluid connector system and fluid connector system

Abstract

The present disclosure relates to a valve plug for a fluid connector system and a fluid connector system wherein the fluid connector system may include first and second valve assemblies that can be coupled together to form a fluid path therethrough, and when the valve assemblies are separated from each other, the first and second valve assemblies are coupled together to form a fluid path therethrough. A connector system may include a first valve assembly that may prevent fluid flow through the connector system, the first valve assembly including a post forming a fluid passage, and a second valve assembly including a valve plug positioned within the bore and configured to block the fluid passage such that when the valve assemblies are disengaged, the slit of the valve plug prevents fluid flow therethrough, and when the valve assemblies are coupled together, the slit of the valve plug is closed. The post extends through the compressible valve, and engagement of the ridge of the valve plug against the post prevents fluid flow between the post and the ridge.

Description

Technical Field

[0001] The present disclosure relates generally to medical fluid connectors, and more particularly to a fluid connector system having valve assemblies that can be coupled together to form a fluid path. Background Art

[0002] Medical connections are widely used in fluid delivery systems, such as those used in conjunction with intravenous (IV) fluid lines, blood access, hemodialysis, peritoneal dialysis, enteral feeding, medicine bottle access, and other procedures.

[0003] In some cases, a medical connection may become displaced or disconnected in an unexpected manner. For example, medical tubing of an IV set coupled to a catheter may become displaced when an unexpected or unintended force is applied to the catheter that may exceed the design limits of the catheter securing method. Unintended or unintended forces may be applied to the tubing and / or catheter when a patient moves or turns over in the bed, or when the tubing or another portion of the IV set becomes caught on a portion of the bed (such as a railing), or when a patient panics, becomes disoriented, or fidgets to the extent that the medical tubing is accidentally or intentionally pulled away from the patient or from the medical equipment coupled to the tubing. Utility Model Content

[0004] In accordance with at least some embodiments disclosed herein, it is recognized that accidental displacement or disconnection of a medical connection, such as a medical fluid line, may cause harm to a patient or caregiver, such as by depriving the patient of medication, increasing the likelihood of infection in the patient, and exposing the caregiver to harmful agents.

[0005] Thus, aspects of the present disclosure provide a fluid connector system comprising: a first valve assembly, the first valve assembly comprising: a housing having a first end, a second end, wherein the second end is opposite to the first end, and an inner surface forming a cavity extending through the second end toward the first end of the housing; a column having a proximal end portion and a distal end portion, wherein the distal end portion of the column extends within the cavity in a direction from the first end of the housing toward the second end of the housing; a fluid channel extending through the first end of the housing and the column; and a compressible valve positioned in the cavity, the compressible valve having a proximal end portion and a distal end portion, wherein the proximal end portion comprises an elastic member having an inner surface forming a recess, and wherein the distal end portion comprises a head having a slit, the slit extending through the head to the recess; a second valve assembly, the second valve assembly comprising: a body having a first end, a second end, wherein the second end is opposite to the first end, forming an inner surface of a hole extending through the second end toward the first end of the body, and a fluid passage extending through the first end of the body to the hole; a valve plug positioned in the hole, the valve plug having a first end, a second end and a slit extending through the first and second ends of the valve plug; and wherein, when the first and second valve assemblies are separated from each other, the compressible valve is in a first position, the distal end of the head is aligned with the second end of the shell, and the distal end portion of the column is positioned in the recess, and when the first and second valve assemblies are coupled together, the second end of the body is positioned in the cavity of the shell, so that the compressible valve is in a second position, wherein the head is biased toward the first end of the shell, and the distal end portion of the column extends through the slit of the head of the compressible valve and through the slit of the valve plug, so that the fluid passage of the first valve assembly is fluidly coupled with the fluid passage of the second valve assembly.

[0006] In some cases, the present disclosure provides a method for providing a fluid connector system, the method comprising: providing a first valve assembly, the first valve assembly comprising a shell having a cavity formed therein having a column and a compressible valve extending around the column; providing a second valve assembly, the second valve assembly comprising a body having a hole formed therein having a valve plug; and inserting the second end of the body into the cavity of the shell so that the head of the compressible valve is biased toward the first end of the shell; and pushing the second end of the body into the cavity of the shell so that the distal end portion of the column extends through the slit of the head of the compressible valve and through the slit of the valve plug to fluidly connect the fluid channel of the first valve assembly and the fluid channel of the second valve assembly, and the protrusion of the shell is positioned between the wall of the body and the first end of the body, wherein the engagement of the protrusion against the wall prevents the second valve assembly from retracting from the first valve assembly.

[0007] The present disclosure provides a valve plug for a fluid connector system, the valve plug comprising: a first end, a second end and a longitudinal axis extending between the first and second ends of the valve plug, an inner surface forming a recess, the recess extending through the first end of the valve plug to reach a bottom surface between the first and second ends of the valve plug, a slit extending through the second end of the valve plug and the bottom surface; and a first portion of the inner surface forming a ridge extending into the recess toward the longitudinal axis, and a second portion of the inner surface forming a ramp wall, the ridge comprising a first engagement surface extending radially inward from the first end of the valve plug to the apex of the ridge in a direction toward the longitudinal axis and a second engagement surface extending radially outward from the apex in a direction away from the longitudinal axis, and the ramp wall extending from the second engagement surface to the bottom surface.

[0008] In some embodiments of the present disclosure, a fluid connector system includes: a first valve assembly, the first valve assembly including: a housing having a first end, a second end, wherein the second end is opposite to the first end, and an inner surface forming a cavity extending through the second end toward the first end of the housing; a column having a proximal end portion and a distal end portion, wherein the distal end portion of the column extends within the cavity in a direction from the first end of the housing toward the second end of the housing; and a fluid passage extending through the first end of the housing and the column; and a second valve assembly, the second valve assembly including: a body having a first end, a second end, wherein the second end is opposite to the first end, an inner surface forming a hole extending through the second end toward the first end of the body, and a fluid passage extending through the first end of the body to reach the hole a valve plug positioned in the hole, the valve plug having a first end, a second end, and an inner surface forming a recess, the recess extending through the first end of the valve plug to a bottom surface between the first and second ends of the valve plug, a slit extending through the second end of the valve plug and the bottom surface, and a first portion of the inner surface forming a ridge extending into the recess toward a longitudinal axis of the valve plug, and wherein, when the first and second valve assemblies are separated from each other, the opposing inner surfaces of the valve plug forming the slit engage against each other to prevent fluid from flowing through the valve plug, and when the first and second valve assemblies are coupled together, the distal end portion of the post extends through the slit and the ridge of the valve plug so that the fluid passage of the first valve assembly is fluidly coupled with the fluid passage of the second valve assembly, and the ridge engages against the post to prevent movement of fluid between the post and the ridge.

[0009] Thus, the present application addresses several operational challenges encountered in prior art fluid connections and provides improvements that enable users to increase safety and efficiency while more easily and accurately providing fluid connections.

[0010] The other features and advantages of the subject technology will be set forth in the following description, and part will be clear from the description, or can be understood through the practice of the subject technology. The advantages of the subject technology will be realized and obtained through the structures particularly pointed out in the written description and its embodiments and the accompanying drawings.

[0011] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the subject technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Various features of illustrative embodiments of the present invention are described below with reference to the accompanying drawings. The illustrated embodiments are intended to illustrate, but not limit, the present invention. The accompanying drawings include the following figures:

[0013] Figure 1 A fluid connector system for use with an IV set coupled to a patient is shown in accordance with aspects of the present disclosure.

[0014] Figure 2 A perspective view of a fluid connector system according to aspects of the present disclosure is shown.

[0015] Figure 3A and Figure 3B The present invention shows various aspects of the present invention. Figure 2 A perspective view of a fluid connector system.

[0016] Figure 4 The present invention shows various aspects of the present invention. Figure 3A and Figure 3B Cross-sectional view of a fluid connector system.

[0017] Figure 5 The present invention shows various aspects of the present invention. Figure 2 Cross-sectional view of a fluid connector system.

[0018] Figure 6 A cross-sectional view of another embodiment of a fluid connector system according to aspects of the present disclosure is shown.

[0019] Figure 7 A perspective view of another embodiment of a fluid connector system according to aspects of the present disclosure is shown.

[0020] Fig. 8A and Figure 8B The present invention shows various aspects of the present invention. Figure 7 A perspective view of a fluid connector system.

[0021] Fig. 9 The present invention shows various aspects of the present invention. Fig. 8A and Figure 8B Cross-sectional view of a fluid connector system.

[0022] Fig.10 The present invention shows various aspects of the present invention. Figure 7 Cross-sectional view of a fluid connector system.

[0023] Fig.11 A perspective view of another embodiment of a valve plug according to aspects of the present disclosure is shown.

[0024] Fig.12 The present invention shows various aspects of the present invention. Fig.11 Figure 2. Top plan view of the valve plug.

[0025] Fig.13 The present invention shows various aspects of the present invention. Fig.11 Bottom plan view of the valve plug.

[0026] Fig.14 The present invention shows various aspects of the present invention. Fig.12 Cross-sectional view of the valve plug.

[0027] Fig.15 The present invention shows that during use according to various aspects of the present disclosure Fig.11 The distribution of force on the valve plug. DETAILED DESCRIPTION

[0028] In the following detailed description, many specific details are set forth to provide a full understanding of the subject technology. It should be understood that the subject technology can be practiced without some of these specific details. In other cases, well-known structures and techniques are not shown in detail to avoid confusing the subject technology.

[0029] In addition, although the present description sets forth specific details of various embodiments, it should be understood that the present description is illustrative only and should not be construed as limiting in any way. In addition, it is contemplated that although specific embodiments of the present disclosure may be disclosed or illustrated in the context of an IV kit, such embodiments may be used in other fluid delivery systems. In addition, various applications of such embodiments and modifications thereof that may occur to a person skilled in the art are also encompassed by the general concepts described herein.

[0030] According to some embodiments, the present application discloses various features and advantages of a fluid connector system. The fluid connector system can provide effective and safe maintenance of a fluid connection, such as a connection for transferring a medical fluid toward or away from a patient. The fluid connector system can maintain a fluid path by preventing accidental disconnection when a pulling or tensioning force is applied to the fluid connector system, such as when a patient moves or when a medical tubing is pulled away from a patient.

[0031] The fluid connector system can also prevent harm to the patient or caregiver by permitting disconnection or separation between the parts of the connector system when the pulling force or tensioning force exceeds a threshold. The fluid connector system can also prevent harm to the patient or caregiver by blocking the fluid path when a disconnection or separation occurs between the parts of the connector system. In addition, the fluid connector system can provide efficient and safe reconstruction of the fluid path by permitting reassembly of the parts of the system after a disconnection or separation occurs.

[0032] Now refer to the accompanying drawings, Figure 1 An example of a fluid connector system in use according to aspects of the present disclosure is shown. Connector system 100 couples with tubing of an IV set for directing fluid to a patient 10. The IV set may include a medication bag 12, a drip chamber 14, tubing 16, and an IV catheter 18.

[0033] The connector system 100 fluidically connects the tubing 16 to the IV catheter 18. Although the connector system 100 is shown as being coupled between the medication bag 12 and the patient 10 along the fluid path of the IV kit, it should be understood that the connector system 100 can be connected in other fluid paths, such as between the patient and the IV pump or between the patient and the dialysis machine. The connector system 100 can also be connected along another portion of the fluid path. For example, the connector system 100 can be connected along a proximal portion of the fluid path, such as being connected between the tubing 16 and the medication bag 12 or other fluid treatment device.

[0034] The connector system 100 includes a first valve assembly 110 and a second valve assembly 210. Figure 2 The first and second valve assemblies 110, 210 may be coupled together by inserting a portion of the second valve assembly 210 into the first valve assembly 110. When the first valve assembly 110 and the second valve assembly 210 are coupled together, a fluid path is formed through the connector system 100.

[0035] If either of the first valve assembly 110 and the second valve assembly 210 is pulled away from each other, such as when a pulling force or a tensioning force on the connector system 100 exceeds a threshold, the first valve assembly 110 and the second valve assembly 210 may be separated from each other. Figure 3A and Figure 3B As shown in , the respective first and second valve assemblies 110, 210 can prevent fluid flow therethrough. In some embodiments of the present disclosure, each of the first and second valve assemblies 110, 210 can prevent fluid flow by blocking a fluid passage through their respective assemblies.

[0036] The first valve assembly 110 includes a housing 112 with an internal cavity and a compressible valve 114 positioned in the cavity. When the first valve assembly 110 is not coupled to the second valve assembly 210 or other mating connector, the compressible valve 114 is in a first position, wherein the fluid passage through the first valve assembly 110 is blocked by the compressible valve 114 to prevent fluid from flowing through the fluid passage of the first valve assembly 110.

[0037] When the first valve assembly 110 is coupled to the second valve assembly 210 , the compressible valve 114 moves to a second position wherein the fluid passage through the first valve assembly 110 is unobstructed to reduce resistance to fluid flow through the fluid passage of the first valve assembly 110 .

[0038] The second valve assembly 210 includes a body 212 with an internal bore and a valve plug 214 positioned in the bore 220. When the first valve assembly 110 and the second valve assembly 210 are not coupled, the fluid passage through the second valve assembly 210 is blocked by the valve plug 214.

[0039] When the first and second valve assemblies 110 , 210 are coupled together, a portion of the first valve assembly 110 moves or biases the valve plug 214 to fluidly couple a fluid passage through the first valve assembly 110 with a passage through the second valve assembly 210 .

[0040] A cross-sectional view of the connector system 100 is shown in FIG. Figure 4 and Figure 5 The first valve assembly 110 includes a housing 112 having a first end 116 and a second end 118. An inner surface of the housing 112 forms a cavity 119 extending through the second end 118 toward the first end 116 of the housing.

[0041] The first valve assembly 110 also includes a post 120 that extends within the cavity and forms at least a portion of a fluid passageway through the first valve assembly 110. The post includes a proximal end portion 122 and a distal end portion 124, wherein the distal end portion 124 of the post extends within the cavity in a direction from the first end 116 of the housing toward the second end 118 of the housing. In some embodiments of the present disclosure, the proximal end portion 122 of the post is coupled to the first end 116 of the housing such that a fluid passageway 126 of the first valve assembly 110 extends through the first end 116 of the housing and the post 120.

[0042] The post 120 includes an inner surface forming a fluid passage 126 that extends through the post's proximal and distal end portions 122, 124. At the post's distal end portion 124, the fluid passage 126 extends through an opening at the post's distal end 127. In some embodiments of the present disclosure, the opening for the fluid passage is positioned at a location spaced apart from the post's distal end 127.

[0043] In some embodiments of the present disclosure, the post 120 may be configured as a needle extending within the cavity and forming at least a portion of the fluid passage through the first valve assembly 110. The post 120 may be integrally formed with the housing 112 or another portion of the first valve assembly 110, or the post 120 may be coupled to the housing 112 or another portion of the first valve assembly 110. In some embodiments, the post 120 is formed of a material including any one of a polymer and / or a metal.

[0044] In some aspects of the present disclosure, the housing 112 defines a boss 128 that extends from the first end 116 of the housing in a direction away from the second end 118 of the housing. The boss 128 may include a portion of the fluid passage 126 of the first valve assembly 110. The cross-sectional width of the fluid passage 126 extending through the boss 128 may be configured as a bond pocket so that an end of a tube may be positioned or inserted into the fluid passage 28. In some embodiments of the present disclosure, the cross-sectional width of the fluid passage 126 extending through the boss 128 is approximately equal to or greater than the cross-sectional width of the tube. In some embodiments, the tube may be coupled to the first valve assembly 110 using an interference fit and / or any method of forming a bond between the first valve assembly 110 and the tube.

[0045] The compressible valve 114 is positioned in the cavity and is configured to prevent fluid flow through the fluid passage 126 when the compressible valve 114 is in the first position. When the compressible valve 114 is in the first position, fluid flow through the fluid passage 126 is prevented by a portion of the compressible valve 114 positioned between the distal end 127 of the post and the second end 118 of the housing.

[0046] The compressible valve 114 includes a proximal end portion 132 and a distal end portion 134. The proximal end portion 132 includes a resilient member having an inner surface forming a recess 136. The distal end portion 134 includes a head 138 defining a distal end 140 of the compressible valve 114. The head 138 includes a slit 139 extending through the head 138 to the recess 136.

[0047] Although the portion of the compressible valve 114 forming the resilient member is shown as a tubular structure having accordion-shaped walls when viewed in cross section, the resilient member may be formed as any structure capable of biasing or directing the head 138 toward the second end 118 of the housing. In some embodiments of the present disclosure, the resilient member may be formed by a spring or arm positioned between the head 138 and either of the first or second ends 116, 118 of the housing.

[0048] When the compressible valve 114 is in the first position, the distal end 140 of the compressible valve 114 is aligned with the second end 118 of the housing. In some embodiments of the present disclosure, when the compressible valve 114 is in the first position, the common plane intersects the distal end 140 of the compressible valve 114 and the second end 118 of the housing.

[0049] To prevent fluid from flowing through the fluid passage 126, the first valve assembly 110 is further configured such that the distal end portion 124 of the post engages against the head 138, thereby blocking the post's fluid passage 126. In some embodiments of the present disclosure, the distal-most end of the post 120 is positioned within the slit 139 of the head. The head 138 may include a cavity or concave inner surface extending from the recess 136 toward the distal end 140 of the compressible valve 114. When the compressible valve 114 is in the first position, the head 138 engages against the opening of the fluid passage through the post to prevent fluid flow therethrough.

[0050] When the compressible valve 114 is in the first position, the head 138 of the compressible valve can also engage a protrusion 144 of the housing. The protrusion 144 extends from the inner surface of the housing 112 in a direction into the cavity. In some embodiments of the present disclosure, the protrusion 144 is positioned at the second end 118 of the housing and extends around the periphery of the inner surface so that when the compressible valve 114 moves toward the first position, for example, when the head 138 moves toward the second end 118 of the housing, the head 138 engages against the protrusion 144.

[0051] In use, when the head 138 moves toward the second end 118 of the housing, the engagement of the head 138 against the protrusion 144 can prevent the movement of the head 138 in the direction from the first end 116 of the housing toward the second end 118 of the housing. The engagement of the head 138 against the protrusion 144 can also form a seal between the head 138 and the housing 112.

[0052] The first valve assembly 110 is configured to be coupled with the second valve assembly 210 by inserting a portion of the second valve assembly 210 through the second end 118 of the housing 112 of the first valve assembly 110. The first valve assembly 110 and the second valve assembly 210 may then be moved toward each other to fluidly couple the first and second valve assemblies 110, 210.

[0053] Figure 4 Also shown is a cross-sectional view of a second valve assembly 210 separated and spaced apart from the first valve assembly 110. The second valve assembly 210 includes a body 212 having a first end 216 and a second end 218. An inner surface of the body 212 defines a bore 220 extending through the second end 218 toward the first end 216 of the body.

[0054] The body 212 also includes a fluid passage 226 extending through the first end 216 of the body to the bore 220. The valve plug 214 is positioned in the bore 220 and is configured to block the fluid passage 226 when the second valve assembly 210 is not coupled to the first valve assembly 110.

[0055] The valve plug 214 includes a first end 236, a second end 238, and a slot 240 extending through the first and second ends 236, 238 of the valve plug. The second end 238 of the valve plug is aligned with the second end 218 of the body. In some embodiments of the present disclosure, a common plane intersects the second end 238 of the valve plug and the second end 218 of the body.

[0056] In some embodiments of the present disclosure, the second end of the body 212 extends radially inward in a direction toward the cavity. The radially inwardly extending portion of the body 212 can engage against the valve plug 214 and prevent the valve plug 214 from moving out of the hole 220.

[0057] In some aspects of the present disclosure, the first end 216 of the body defines a male luer 242 structure that extends in a direction away from the second end 218 and forms at least a portion of the fluid passage 226. In some embodiments of the present disclosure, the first end 116, 216 of any one of the first and second valve assemblies 110, 210 may include any one of a coupling recess, a female luer, and / or a male luer.

[0058] The body 212 forms a wall 244 that is configured to engage against a portion of the first valve assembly 110 when the first and second valve assemblies 110, 210 are coupled together. The wall 244 can be formed by a portion of the body 212 that extends away from the outer surface in a direction that is transverse to the longitudinal axis A2 extending between the first and second ends 216, 218 of the body. In some embodiments of the present disclosure, the wall 244 can be formed by a portion of the outer surface of the body 212 that is convex or concave relative to an adjacent portion of the outer surface of the body 212.

[0059] The first and second valve assemblies 110, 210 may be coupled together by inserting the second end 218 of the body of the second valve assembly 210 through the opening into the cavity at the second end 118 of the housing of the first valve assembly 110, as shown. Figure 5 as shown in .

[0060] When the body 212 is inserted into the cavity and advanced toward the first end 116 of the housing, any one of the second end 218 of the body and / or the second end 238 of the valve plug engages against the distal end 140 of the compressible valve. As the second valve assembly 210 is advanced toward the first end 116 of the housing, the elastic member formed by the proximal end portion 132 of the compressible valve is compressed, and the head moves toward the first end 116 of the housing. The movement of the head 138 toward the first end 116 of the housing causes the distal end portion 124 of the post to move through or pierce the slit 139 of the head and the slit 240 of the valve plug.

[0061] The body 212 is advanced toward the first end 116 of the housing until the protrusion 144 of the housing moves over and over the wall 244 of the body such that the protrusion 144 is positioned between the wall 244 and the first end 216 of the body when the first and second valve assemblies 110, 210 are coupled together.

[0062] The distance between the second end 218 of the body and the wall 244 is configured to prevent separation of the first and second valve assemblies 110, 210 while maintaining a fluid path through the first and second valve assemblies 110, 210. To prevent separation and maintain the fluid path, the wall 244 is spaced apart from the second end 218 of the body by a distance D1, wherein the distance D1 is approximately equal to or greater than the sum of the length L1 of the slit 139 and the length L2 of the slit 240.

[0063] When the first and second valve assemblies 110 , 210 are coupled together, the opening through the distal end 127 of the post is positioned between the valve plug 214 and the first end 216 of the body such that the fluid passage 126 of the first valve assembly 110 is fluidly coupled with the fluid passage 226 of the second valve assembly 210 .

[0064] In some embodiments of the present disclosure, for example Figure 6 , an opening 141 for a fluid passage is positioned at a location spaced apart from the distal end 127 of the post. The opening 141 forms a portion of the fluid passage 126 that extends in a direction that is transverse relative to the longitudinal axis A2 formed by the fluid passage 126. For example, the opening 141 at the distal end portion 124 of the post may form a portion of the fluid passage 126 that extends radially outward in a direction extending away from the longitudinal axis A2.

[0065] The opening can be spaced apart from the distal end 127 of the post and can form a portion of the fluid passage 126 that extends in a direction aligned with or parallel to the longitudinal axis A2. In some cases, the distal end 127 of the post has an outer surface that tapers to form a cross-sectional width that decreases in a direction from the proximal end portion 122 of the post to the distal end 127, and the opening extends through the tapered outer surface.

[0066] In some embodiments of the present disclosure, the valve plug 214 may include an inner surface forming a recess 241 that intersects the slit 240. When the first and second valve assemblies 110, 210 are coupled together, the post of the first valve assembly 110 may move through the slit 240 and the recess 241.

[0067] The recess extends into the first end 236 of the valve plug in a direction toward the second end 238 of the valve plug. The recess 241 may also include a ridge extending from the inner surface into the recess and extending in a direction toward the longitudinal axis A2. The ridge may be configured to engage against the post 120 of the first valve assembly 110 to form a seal between the ridge and the post 120 of the valve plug 214. When the post 120 is positioned through the valve plug 214, the ridge may prevent fluid between the valve plug 214 and the post 120 from moving out of the hole 220.

[0068] refer to Figure 7 , shows an embodiment of the connector system 400, wherein when the first and second valve assemblies 410, 510 are coupled together, a portion of the first valve assembly 410 is received in the sleeve 550 of the second valve assembly 510. For clarity and brevity of the present disclosure, features of the connector system 400 similar to those described herein with reference to other embodiments are not repeated herein.

[0069] Connector System 400 Fig. 8A and Figure 8B 4 is shown in which the first valve assembly 410 is disconnected or separated from the second valve assembly 510. The first valve assembly 410 includes a protrusion 460 extending in a direction away from the outer surface of the housing 412. When the first and second valve assemblies 410, 510 are coupled together, the protrusion 460 is inserted into the space between the inner surface of the sleeve 550 and the outer surface of the body 512.

[0070] A cross-sectional view of the connector system 400 is shown in FIG. Fig. 9 and Fig.10 The first valve assembly 410 includes a housing 412 having a first end 416 and a second end 418. An inner surface of the housing 412 forms a cavity extending through the second end 418 toward the first end 416 of the housing.

[0071] The first valve assembly 410 also includes a post 420 that extends within the cavity and forms at least a portion of a fluid passageway through the first valve assembly 410. The post 420 includes a proximal end portion 422 and a distal end portion 424, wherein the distal end portion 424 of the post extends within the cavity in a direction from the first end 416 of the housing toward the second end 418 of the housing.

[0072] The post 420 includes an inner surface forming a fluid channel 426 that extends through the post's proximal and distal end portions 422, 424. At the post's distal end portion 424, the fluid channel 426 extends through an opening 421 that is spaced apart from the post's distal end 427. In some embodiments of the present disclosure, the opening 421 extends through a portion of the post that has an outer surface that tapers to form a cross-sectional width that decreases in a direction away from the proximal end portion 422.

[0073] The compressible valve 414 is positioned in the cavity and is configured to block the fluid passage 426 when the compressible valve 414 is in the first position. The compressible valve 414 includes a proximal end portion 432 and a distal end portion 434. Figure 4 and Figure 5 The disclosed compressible valve 114 has a proximal end portion 432 that includes a resilient member and a distal end portion 434 that includes a head portion 438 having a slit that extends through the head portion 438 to a recess in the resilient member.

[0074] In some embodiments of the present disclosure, the head 438 includes an inner surface forming a portion of a recess extending from the proximal end portion 432 of the compressible valve toward the distal end portion 434. The recess along the head 438 can be configured such that the head engages against the post to block the opening 421 when the compressible valve is in the first position.

[0075] The portion of the recess along the head 438 is formed by an inner surface having a cross-sectional width approximately equal to the cross-sectional width of the outer surface of the distal end portion 424 of the post. In some embodiments of the present disclosure, the portion of the recess along the head 438 may have a tapered cross-sectional width to form a decreasing width in a direction from the proximal end portion 432 of the head 438 toward the distal end 440.

[0076] To engage against the post, the first portion 450 of the recess can have a cross-sectional width W1 that is approximately equal to the cross-sectional width of the outer surface of the post between the proximal end portion 432 and the opening 421. The second portion 452 of the recess between the first portion 450 of the recess and the distal end 440 of the head can have a cross-sectional width W2 that is approximately equal to the cross-sectional width of the outer surface of the post between the opening 421 and the distal end 427 of the post.

[0077] When the compressible valve 414 is in the first position, the head 438 is positioned such that the distal end portion 424 of the post is within the recess of the head to prevent fluid flow through the passage 426 and the opening 421 of the post.

[0078] In some embodiments of the present disclosure, when the compressible valve 414 is in the first position, the inner surface of the first portion 450 of the head along the recess engages against a portion of the column between the proximal end portion 432 and the opening 421, and the inner surface of the second portion 452 of the head along the recess engages against a portion of the column between the opening 421 and the distal end 427 of the column.

[0079] When the compressible valve 414 is in the first position, the head 438 of the compressible valve can also engage the flange 425 of the housing. The flange 425 terminates from the inner surface of the housing 412 in a direction into the cavity. In some embodiments of the present disclosure, the flange 425 is formed by a portion of the inner surface of the housing, which has a cross-sectional width that tapers in a direction from the first end 416 toward the second end 418 of the housing.

[0080] When the compressible valve 414 moves toward the first position, the outer surface of the head 438 can engage against the flange 425. In some embodiments of the present disclosure, the outer surface of the head 438 defines a tapered cross-sectional width of the head such that the cross-sectional width decreases in a direction toward the distal end 440 of the head.

[0081] The housing 412 also includes a protrusion 460 configured to engage against the second valve assembly 510 when the first and second valve assemblies 410, 510 are coupled together. The protrusion 460 can be formed by a portion of the housing 412 that extends away from the outer surface in a direction that is transverse to the longitudinal axis A1 extending between the first and second ends 416, 418 of the housing. In some embodiments of the present disclosure, the protrusion 460 can be formed by a portion of the outer surface of the housing 412 that is convex or concave relative to an adjacent portion of the outer surface of the housing 412.

[0082] The protrusion 460 is positioned at the second end 418 of the housing, and the flange 425 is spaced apart from the protrusion 460 along the longitudinal axis A1. In some aspects of the present disclosure, the distal end 427 of the post is longitudinally positioned between the flange 425 and the protrusion 460.

[0083] The protrusion 460 is configured to engage against the second valve assembly 510 to prevent accidental separation of the first and second valve assemblies 410, 510 from each other. The second valve assembly 510 may include a body 512 with an internal bore and a valve plug 514 positioned in the bore 520. When the first valve assembly 410 and the second valve assembly 510 are not coupled, the valve plug 514 blocks the fluid passage through the second valve assembly 510.

[0084] In some embodiments of the present disclosure, the valve plug 514 includes a groove 515 extending into the outer surface between the first and second ends of the valve plug. The groove 515 can extend around the circumference of the valve plug and in a direction toward the longitudinal axis A2 of the second valve assembly 510. In some aspects, the groove 515 can permit the valve plug 514 to bend or deflect as the post 420 moves through the valve plug 514.

[0085] To prevent accidental separation of the first and second valve assemblies 410, 510 from each other, the second valve assembly 510 includes a sleeve 550. The sleeve extends along the outer surface of the body 512 in a direction from the first end 516 of the body toward the second end 518. In some embodiments, the sleeve 550 extends in a direction parallel to the longitudinal axis A2 extending between the first and second ends 516, 518 of the body.

[0086] The sleeve 550 is spaced apart from the body 512 to permit a portion of the first valve assembly 410 to be inserted therebetween. A space between the sleeve 550 and the body 512 is formed between an inner surface of the sleeve 550 and an outer surface of the body 512.

[0087] When a portion of the first valve assembly 410 is positioned between the sleeve 550 and the body 512 , the engagement of the sleeve 550 and the body 412 against each other may prevent accidental separation of the first and second valve assemblies 410 , 510 from each other.

[0088] The portion of the sleeve 550 that engages against the housing 412 may include a wall 544. The wall 544 extends away from the inner surface of the sleeve in a direction toward the outer surface of the body 512. In some embodiments of the present disclosure, the distal end of the wall is spaced apart from the outer surface of the body 512 by a distance D3. In the case where the distance D3 is less than the thickness T1 of the distal end of the housing 412, when the second end 418 of the housing 412 is inserted between the sleeve 550 and the body 512, the sleeve can be bent or biased away from the outer surface of the body 512.

[0089] A cross-sectional view of the first and second valve assemblies 410, 510 coupled together is shown in FIG. Fig.10 When the body 512 is inserted into the cavity of the housing 412 and advanced toward the first end 416 of the housing, any one of the second end 518 of the body and / or the second end 538 of the valve plug engages against the distal end 440 of the compressible valve 414 .

[0090] As the body 512 and the housing 412 move toward each other, the second end 418 of the housing moves into the space between the sleeve 550 and the outer surface of the body 512. The body 512 and the housing 412 then move further toward each other until the protrusion 460 is positioned between the wall 544 and the first end 516 of the body such that engagement of the protrusion 460 against the wall 544 prevents the first and second valve assemblies 410, 510 from accidentally separating from each other.

[0091] When the body 512 is inserted into the cavity of the shell 412 and pushed toward the first end 416 of the shell, the fluid channel 426 of the shell is fluidly connected to the fluid channel 526 of the body, and the body 512 is pushed into the shell 412 for a distance, wherein the opening 421 through the distal end portion of the column is positioned between the valve plug 514 and the first end 516 of the body.

[0092] In some embodiments of the present disclosure, the distal end 427 of the column is longitudinally positioned between the flange 425 and the protrusion 460 so that when the first and second valve assemblies 410, 510 are coupled together, the opening 421 through the distal end portion of the column is positioned between the valve plug 514 and the first end 516 of the body.

[0093] When the first and second valve assemblies 410, 510 are coupled together, the fluid path of the connector system 400 is formed by the fluid passage 426 of the first valve assembly 410 and the fluid passage 526 of the first valve assembly 510. When the first and second valve assemblies 410, 510 are disconnected or separated from each other, the compressible valve 414 moves to an unrestricted position such that the head 438 blocks or prevents fluid flow through the column and the valve plug 514 prevents fluid flow through the fluid passage 526.

[0094] An embodiment of a valve plug 615 for a connector system is Figures 11 to 15 . The valve plug 615 includes features that seal or restrict the fluid path through the valve plug when low and high pressures are applied to the valve. High fluid pressure can be applied to the valve when the column 120, 420 of the fluid coupling assembly is inserted through the valve plug 615 and fluid from the column or connector system directs pressure against the valve plug. In order to prevent the formation of an unintended path between the column 120, 420 and the valve plug 615 that may cause fluid to leak therebetween, the features of the valve plug 615 provide a substantially uniform sealing pressure against the column 120, 420 of the fluid coupling assembly.

[0095] The valve plug 615 includes a first end 636, a second end 638, and a slit 640 extending through the second end 638 of the valve plug in a direction toward the first end 636 of the valve plug. The slit 640 is formed by an inner surface of the valve plug 615 and forms a path through at least a portion of the valve plug 615. The slit 640 can permit a post for a valve assembly to be inserted therethrough and can close the path when the post is not inserted through the valve plug 615.

[0096] When the valve plug 615 is in a disconnected state, for example, no posts 120, 420 of the fluid coupling assembly extend into the valve plug, the inner surfaces of the valve plug 615 forming the slit 640 engage against each other to close or block the path through the slit. When the valve plug 615 is in a connected state, for example, posts 120, 420 of the fluid coupling assembly extend into the valve plug, at least a portion of the inner surfaces of the valve plug 615 forming the slit 640 move away from each other with the posts inserted therebetween, and a portion of the inner surface of the valve plug 615 forming the slit 640 engages against the posts to prevent movement of fluid between the posts and the valve plug 615.

[0097] In some embodiments, the second end 638 of the valve plug includes Fig.11 , Fig.12 and Fig.14 The recess or concave surface 639 shown in FIG. 6 extends in a direction from the second end 638 of the valve plug toward the first end. The concave surface 639 and the slit 640 are aligned relative to each other such that the slit 640 is approximately centered in the concave surface 639.

[0098] refer to Fig.13 and Fig.14 Another portion of the inner surface of the valve plug 615 may form a recess 641 that extends through the first end 636 of the valve plug to a bottom surface 643 between the first and second ends 636, 638 of the valve plug. The slit 640 extends through the bottom surface 643, thereby forming a path through the slit 640 and the recess 641 and completely through the first and second ends 636, 638 of the valve plug.

[0099] The inner surface of the valve plug 615 also forms a ridge 646 that extends radially inward toward the longitudinal axis A6 defined between the first and second ends 636, 638 of the valve plug. The ridge 646 includes a first engagement surface 648 that extends radially inward in a direction from the first end 636 of the valve plug toward the longitudinal axis A6 to an apex 650 of the ridge. A second engagement surface 652 of the ridge extends radially outward from the apex 650 in a direction away from the longitudinal axis A6 and toward the bottom surface 643 of the recess.

[0100] Between the ridge 646 and the bottom surface 643, the inner surface of the valve plug forms a ramp wall 654. The ramp wall 654 has a length extending from a first end of the ramp wall at the second engagement surface 652 of the ridge to a second end of the ramp wall at the bottom surface 643 of the recess.

[0101] At least a portion of the length of the ramp wall 654 is oriented to extend in a direction away from the longitudinal axis A6. The ramp wall 654 forms a straight tapered surface between the second engagement surface 652 and the bottom surface 643. In some embodiments of the present disclosure, the entire length of the ramp wall 654 forms a straight tapered surface extending in a direction away from the longitudinal axis A6. In some embodiments, a portion of the length of the ramp wall 654 may extend in a direction parallel to the longitudinal axis A6 and / or in a direction away from the longitudinal axis A6. The present disclosure also contemplates an embodiment in which the entire length of the ramp wall 654 or a portion thereof forms any one of a concave surface extending away from the longitudinal axis A6 and a convex surface extending toward the longitudinal axis A6.

[0102] The ridge 646 is configured to engage against a post of the valve assembly inserted into the recess 641 of the valve plug. In some embodiments of the present disclosure, at least the apex 650 of the ridge can engage against the post to form a seal between the post and the valve plug 615 that prevents fluid from moving therebetween.

[0103] The ramp wall 654 has a perimeter extending around or around the longitudinal axis A6. The perimeter of the ramp wall 654 is configured to extend completely around the longitudinal axis of the valve plug 615, thereby forming a toroid shape around the longitudinal axis A6. In some cases, in embodiments of the present disclosure, the ramp wall 654 is discontinuous along its perimeter. In some embodiments, the discontinuity of the ramp wall 654 can be formed by any of the channels, grooves, ridges and / or pits formed on the ramp wall 654.

[0104] The inner surface of the valve plug 615 defines a width of the recess 641, which varies transversely with respect to the longitudinal axis A6 between the first end 636 and the bottom surface 643 of the valve plug. The recess has a first width WR1 at the vertex 650 of the ridge, and the recess has a second width WR2 at the first end of the ramp wall 654 adjacent to the second engagement surface 652. The inner surface of the valve plug 615 is formed such that the minimum width of the recess 641 is the first width WR1 at the vertex 650 of the ridge, and the width at other portions of the recess is greater than the first width WR1.

[0105] The width of the recess 641 transverse to the longitudinal axis A6 increases and decreases between the first end 636 of the valve plug and the bottom surface 643. Along the first engagement surface 648, the width increases from the first end 636 of the valve plug to the apex 650 of the ridge. Along the second engagement surface 652, the width of the recess decreases from the apex 650 of the ridge to the ramp wall 654. Along the ramp wall 654, the width increases in a direction toward the bottom surface 643.

[0106] The recess 641 extends into the valve plug a total distance DR from the first end 636 of the valve plug to the bottom surface, wherein the total distance has a first portion DR-1 and a second portion DR-2. The ridge 646 extends along the first portion DR-1 of the recess distance, and the ramp wall 654 extends along the second portion DR-2 of the recess distance. The second portion DR-2 of the recess distance is greater than the first portion DR-1 of the recess distance. In some examples of the present disclosure, the total distance DR from the first end 636 of the valve plug to the bottom surface 643 is less than the distance DS from the second end 638 of the valve plug to the bottom surface 643.

[0107] When the valve plug is in a disconnected state, e.g., the posts 120, 420 of the fluid coupling assembly do not extend into the valve plug, the valve plug 615 provides a sealed fluid path, and when the valve plug is in a connected state, e.g., the posts 120, 420 of the fluid coupling assembly extend into the valve plug, the valve plug provides a substantially uniform sealing pressure. The uniform sealing pressure provided by the valve plug 615 is Fig.15 FIG. 6 is a diagram showing the magnitude of the pressure directed by the slits 640 and ridges 646 against the posts 120, 420 of the fluid coupling assembly, wherein for clarity, the posts 120, 420 are shown in FIG. Fig.15 is omitted.

[0108] The pressure directed by the ridge 646 against the post 120, 420 of the fluid coupling assembly is evenly distributed around the entire perimeter of the ridge 646, thereby preventing movement or leakage of fluid between the post 120, 420 and the ridge 646. The pressure P1 applied by the ridge 646 against the post 120, 420 is evenly distributed around the perimeter of the post 120, 420. The pressure applied by the ridge is greatest at the apex 650 and decreases along the first and second engagement surfaces 648, 652 in a direction away from the apex 650.

[0109] Relative to the pressure applied by the slit 640 against the post 120, 420 at the middle portion 664 of the slit, the pressure P2 applied by the slit 640 against the post 120, 420 is smaller at the lateral end portions 662 of the slit 640. In some embodiments of the present disclosure, the distance from the apex 650 to the bottom surface 643 of the recess is greater than the distance from the first end 636 of the valve plug to the apex 650, which allows the pressure P2 applied by the slit 640 against the post 120, 420 to be greatest along the second engagement surface 652 of the ridge.

[0110] When the post 120, 420 of the fluid coupling assembly is inserted into the valve plug, the portion of the valve plug forming the slit 640 may move or deflect into the recess, such as Fig.15 In some embodiments of the present disclosure, the middle portion 664 of the slit deflects into the recess 641, and at least a portion of the bottom surface 643 moves along the slope wall 654 into a portion of the recess. Fig.14 The second portion of the distance DR-2 is identified as the recess.

[0111] When the posts 120, 420 of the fluid coupling assembly are withdrawn or otherwise removed from the valve plug 615, the valve plug is in an open state wherein the inner surfaces forming the slit 640 engage against one another to close the fluid path through the valve plug 615 and prevent fluid from moving therethrough.

[0112] In some embodiments of the present disclosure, the valve plug 615 can prevent fluid from moving through the slit 640 in the disconnected state when the fluid pressure is between approximately 1 PSI and approximately 120 PSI. In some embodiments, the valve plug 615 can prevent fluid from moving through the slit 640 in the disconnected state when the fluid pressure is approximately 60 PSI or less. In some embodiments of the present disclosure, the valve plug 615 can prevent fluid from moving through the slit 640 in the disconnected state when the fluid pressure is between approximately 1 PSI and approximately 480 PSI. In some embodiments, the valve plug 615 can prevent fluid from moving or leaking between the posts 120, 420 and the ridge 646 in the connected state when the fluid pressure is between approximately 320 PSI or less.

[0113] It should be understood that although the present disclosure discloses the valve plug 615 as a single unified component, the present disclosure contemplates embodiments in which the valve plug 615 is formed of two separate components, wherein the first component forms the first end 636, ridge 646, and ramp wall 654 of the valve plug, and the second component forms the slit 640 and the second end 638 of the valve plug. The first and second components may be assembled or bonded together to form the valve plug 615. In some embodiments of the present disclosure, the first and second components may be positioned in the valve assembly 210, 410 such that the first and second components are spaced a distance therebetween.

[0114] This subject technology is an explanation of the terms

[0115] For example, the subject technology is described according to the following various aspects. For convenience, various examples of various aspects of the subject technology are described as numbered clauses (1, 2, 3, etc.). These clauses are provided as examples and do not limit the subject technology. Note that any dependent clauses can be combined in any combination and can be placed in a corresponding independent clause (e.g., clause 1 or clause 5). Other clauses can be presented in a similar manner.

[0116] Item 1. Therefore, various aspects of the present disclosure provide a fluid connector system, comprising: a first valve assembly, the first valve assembly comprising: a housing, the housing having a first end, a second end, wherein the second end is opposite to the first end, and an inner surface forming a cavity extending through the second end toward the first end of the housing; a column having a proximal end portion and a distal end portion, wherein the distal end portion of the column extends within the cavity in a direction from the first end of the housing toward the second end of the housing; a fluid channel extending through the first end of the housing and the column; and a compressible valve positioned in the cavity, the compressible valve having a proximal end portion and a distal end portion, wherein the proximal end portion includes an elastic member having an inner surface forming a recess, and wherein the distal end portion includes a head having a slit, the slit extending through the head to the recess; a second valve assembly, the second valve assembly comprising: a body, having a first end and a second end, wherein the second end is opposite to the first end, forming an inner surface of a hole extending through the second end toward the first end of the body, and a fluid passage extending through the first end of the body to reach the hole; a valve plug positioned in the hole, the valve plug having a first end, a second end and a slit extending through the first and second ends of the valve plug; and wherein, when the first and second valve assemblies are separated from each other, the compressible valve is in a first position, the distal end of the head is aligned with the second end of the shell, and the distal end portion of the column is positioned in the recess, and when the first and second valve assemblies are connected together, the second end of the body is positioned in the cavity of the shell, so that the compressible valve is in a second position, the head is biased toward the first end of the shell, and the distal end portion of the column extends through the slit of the head of the compressible valve and through the slit of the valve plug, so that the fluid passage of the first valve assembly is fluidly connected with the fluid passage of the second valve assembly.

[0117] Clause 2. The fluid connector system of clause 1, wherein the housing of the first valve assembly includes a protrusion extending from an inner surface of the housing in a direction into the cavity.

[0118] Clause 3. The fluid connector system of clause 2, wherein the protrusion is proximate the second end of the housing.

[0119] Clause 4. The fluid connector system of clause 2, wherein the head of the compressible valve engages against the protrusion when the compressible valve is in the first position.

[0120] Clause 5. A fluid connector system as described in clause 2, wherein the outer surface of the body of the second valve assembly includes a wall extending in a direction away from the outer surface in a direction that is transverse to a longitudinal axis extending between the first and second ends of the body.

[0121] Clause 6. The fluid connector system of Clause 5, wherein the protrusion of the first valve assembly is positioned between the wall and the first end of the body when the first and second valve assemblies are coupled together.

[0122] Clause 7. The fluid connector system of clause 1, wherein the fluid passageway of the first valve assembly comprises an opening through the distal end of the post.

[0123] Clause 8. The fluid connector system of Clause 1, wherein the fluid passageway of the first valve assembly comprises an opening spaced apart from the distal end of the post.

[0124] Item 9. A fluid connector system according to any one of Items 1 to 8, wherein the first end of the shell includes a coupling recess, which extends into the first end of the shell in a direction toward the second end of the shell, and wherein the fluid channel of the first valve assembly extends through the coupling recess.

[0125] Clause 10. The fluid connector system of any of Clauses 1 to 9, wherein the second end of the body extends radially inward in a direction toward the cavity, and wherein the second end of the valve plug is aligned with the second end of the body.

[0126] Clause 11. A fluid connector system as described in any of clauses 1 to 10, wherein the first end of the body includes a male luer member, the male luer member extends in a direction away from the second end of the body, and wherein the fluid channel of the second valve assembly extends through the male luer member.

[0127] Clause 12. The fluid connector system of any one of Clauses 1 to 11, wherein any one of the first end of the housing and the first end of the body comprises any one of a coupling recess, a female Luer, and / or a male Luer.

[0128] Clause 13. The fluid connector system of any one of Clauses 1 to 12, wherein the inner surface of the housing includes a flange such that a cross-sectional width of the inner surface of the housing decreases in a direction from the first end toward the second end of the housing.

[0129] Item 14. A fluid connector system according to item 13, wherein the shell includes a protrusion extending from the outer surface of the shell in a direction away from the cavity, and wherein the flange is spaced apart from the protrusion along a longitudinal axis extending between the first and second ends of the shell.

[0130] Clause 15. The fluid connector system of clause 13, wherein the head of the compressible valve engages against the flange when the compressible valve is in the first position.

[0131] Item 16. A fluid connector system according to Item 14, wherein the second valve assembly includes a sleeve extending along a longitudinal axis extending between the first and second ends of the body and extending in a direction toward the second end of the body, and wherein an inner surface of the sleeve is spaced apart from an outer surface of the body.

[0132] Clause 17. The fluid connector system of clause 16, wherein the wall extends from the inner surface of the sleeve in a direction toward the outer surface of the body.

[0133] Clause 18. The fluid connector system of Clause 17, wherein the protrusion of the first valve assembly is positioned between the wall and the first end of the body when the first and second valve assemblies are coupled together.

[0134] Clause 19. The fluid connector system of any one of Clauses 1 to 18, wherein when the first and second valve assemblies are coupled together, fluid is able to flow from the first valve assembly to the second valve assembly, or from the second valve assembly to the first valve assembly.

[0135] Item 20. A method for providing a fluid connector system, the method comprising: providing a first valve assembly, the first valve assembly comprising a shell having a cavity formed therein having a column and a compressible valve extending around the column; providing a second valve assembly, the second valve assembly comprising a body having a hole formed therein having a valve plug; and inserting the second end of the body into the cavity of the shell so that the head of the compressible valve is biased toward the first end of the shell; and pushing the second end of the body into the cavity of the shell so that the distal end portion of the column extends through the slit of the head of the compressible valve and through the slit of the valve plug to fluidly connect the fluid channel of the first valve assembly and the fluid channel of the second valve assembly, and the protrusion of the shell is positioned between the wall of the body and the first end of the body, wherein the engagement of the protrusion against the wall prevents the second valve assembly from retracting from the first valve assembly.

[0136] Clause 21. The method of Clause 20, further comprising rotating either the first valve assembly or the second valve assembly relative to the other of the first valve assembly and the second valve assembly.

[0137] Item 22. A valve plug for a fluid connector system, the valve plug comprising: a first end, a second end, and a longitudinal axis extending between the first and second ends of the valve plug; an inner surface forming a recess, the recess extending through the first end of the valve plug to a bottom surface between the first and second ends of the valve plug; a slit extending through the second end and the bottom surface of the valve plug; and a first portion of the inner surface forming a ridge extending into the recess toward the longitudinal axis, and a second portion of the inner surface forming a ramp wall; the ridge comprising a first engagement surface extending radially inward from the first end of the valve plug to the apex of the ridge in a direction toward the longitudinal axis and a second engagement surface extending radially outward from the apex in a direction away from the longitudinal axis, and the ramp wall extending from the second engagement surface to the bottom surface.

[0138] Clause 23. The valve plug of clause 33, wherein the ramp wall forms a straight tapered surface between the second engagement surface and the bottom surface.

[0139] Clause 24. The valve plug of Clause 23, wherein the tapered surface of the ramp wall extends around a longitudinal axis of the valve plug.

[0140] Clause 25. The valve plug of Clause 23, wherein the tapered surface of the ramp wall extends completely around the longitudinal axis of the valve plug.

[0141] Clause 26. The valve plug of any one of Clauses 22 to 25, wherein the ridge and the ramp wall form an annular shape extending about a longitudinal axis of the valve plug.

[0142] Clause 27. A valve plug according to any one of clauses 22 to 26, wherein a cross-sectional width of the recess transverse to the longitudinal axis decreases along the first engagement surface from the first end of the valve plug to the apex and increases along the second engagement surface from the apex to the ramp wall.

[0143] Clause 28. The valve plug of clause 27, wherein a cross-sectional width of the recess increases along the ramp wall toward a bottom surface of the valve plug.

[0144] Clause 29. The valve plug of any one of Clauses 22 to 28, wherein a cross-sectional width of the recess at the apex is smaller than a cross-sectional width of the recess along the ramp wall.

[0145] Clause 30. The valve plug of any one of Clauses 22 to 29, wherein the second end of the valve plug includes a concave surface extending into the valve plug, and the slit extends through the concave surface.

[0146] Clause 31. The valve plug of any one of Clauses 22 to 30, wherein a distance from the first end of the valve plug to a bottom surface of the recess is smaller than a distance from the bottom surface of the recess to the second end of the valve plug.

[0147] Item 32. A fluid connector system, comprising: a first valve assembly, the first valve assembly comprising: a shell, the shell having a first end, a second end, wherein the second end is opposite to the first end, and an inner surface forming a cavity extending through the second end toward the first end of the shell; a column having a proximal end portion and a distal end portion, wherein the distal end portion of the column extends within the cavity in a direction from the first end of the shell toward the second end of the shell; and a fluid channel extending through the first end of the shell and the column; a second valve assembly, the second valve assembly comprising: a body, the body having a first end, a second end, wherein the second end is opposite to the first end, and an inner surface forming a hole extending through the second end toward the first end of the body, and a fluid channel extending through the first end of the body to reach the hole; positioning A valve plug in the hole, the valve plug having a first end, a second end and an inner surface forming a recess, the recess extending through the first end of the valve plug to a bottom surface between the first and second ends of the valve plug, a slit extending through the second end of the valve plug and the bottom surface, and a first portion of the inner surface forming a ridge extending into the recess toward the longitudinal axis of the valve plug; and wherein, when the first and second valve assemblies are separated from each other, the relative inner surfaces of the valve plug forming the slit abut against each other to prevent fluid flow through the valve plug, and when the first and second valve assemblies are connected together, the distal end portion of the column extends through the slit and the ridge of the valve plug so that the fluid channel of the first valve assembly is fluidly connected to the fluid channel of the second valve assembly, and the ridge abuts against the column to prevent fluid movement between the column and the ridge.

[0148] Clause 33. The fluid connector system of clause 32, wherein the second portion of the inner surface of the valve plug forms a ramp wall having a tapered surface extending between a ridge and a bottom surface.

[0149] Clause 34. The fluid connector system of clause 33, wherein the tapered surface of the ramp wall extends around a longitudinal axis of the valve plug.

[0150] Clause 35. The fluid connector system of clause 33, wherein the tapered surface of the ramp wall extends completely around the longitudinal axis of the valve plug.

[0151] Item 36. A fluid connector system according to Item 33, wherein the cross-sectional width of the recess transverse to the longitudinal axis decreases along a first engaging surface of the valve plug extending from a first end of the valve plug to the apex of the ridge and increases along a second engaging surface of the valve plug extending from the apex to the slope wall.

[0152] Clause 37. The fluid connector system of clause 36, wherein a cross-sectional width of the recess increases along the ramped wall toward a bottom surface of the valve plug.

[0153] Clause 38. The fluid connector system of clause 33, wherein the ridge and the ramped wall form an annular shape extending about a longitudinal axis of the valve plug.

[0154] Clause 39. A fluid connector system as described in clause 33, wherein the cross-sectional width of the recess at the apex of the ridge is less than the cross-sectional width of the recess along the ramp wall.

[0155] Clause 40. The fluid connector system of any of Clauses 32 to 39, wherein the second end of the valve plug includes a concave surface extending into the valve plug, and the slit extends through the concave surface.

[0156] Clause 41. The fluid connector system of any of clauses 32 to 40, wherein the compressible valve of the first valve assembly engages against the second end of the valve plug when the first and second valve assemblies are coupled together.

[0157] Further considerations

[0158] In some embodiments, any one of the clauses of this article can rely on any one of the independent clauses or any one of the dependent clauses. In one aspect, any one of these clauses (e.g., dependent clauses or independent clauses) can be combined with any other one or more clauses (e.g., dependent clauses or independent clauses). In one aspect, the claim may include some or all of the words (e.g., steps, operations, means or parts) listed in a clause, sentence, phrase or paragraph. In one aspect, the claim may include some or all of the words listed in one or more clauses, sentences, phrases or paragraphs. In one aspect, some of the words in each of the clauses, sentences, phrases or paragraphs can be removed. In one aspect, additional text or elements can be added to clauses, sentences, phrases or paragraphs. In one aspect, the subject technology can be implemented without utilizing some of the parts, elements, functions or operations described herein. In one aspect, the subject technology can be implemented using additional parts, elements, functions or operations.

[0159] The present disclosure is provided to enable any person skilled in the art to practice the various aspects described herein. The present disclosure provides various examples of the subject technology, and the subject technology is not limited to these examples. Various modifications to these aspects will be clear to those skilled in the art, and the general principles defined herein can be applied to other aspects.

[0160] Unless otherwise specified, reference to elements in the singular is not intended to mean "one and only one," but rather "one or more." Unless otherwise specified, the term "some" refers to one or more. Masculine pronouns (e.g., his) include feminine and neuter pronouns (e.g., her and its), and vice versa. Headings and subheadings, if any, are used for convenience only and do not limit the present invention.

[0161] The word "exemplary" is used herein to mean "serving as an example or illustration." Any aspect or design described herein as "exemplary" is not necessarily to 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.

[0162] Phrases such as "aspects" do not mean that such aspects are essential to the subject technology or that such aspects apply to all configurations of the subject technology. The disclosure related to an aspect may apply to all configurations or one or more configurations. An aspect may provide one or more examples. Phrases such as "aspects" may refer to one or more aspects, and vice versa. Phrases such as "embodiments" do not mean that such embodiments are essential to the subject technology or that such embodiments apply to all configurations of the subject technology. The disclosure related to an embodiment may apply to all embodiments or one or more embodiments. An embodiment may provide one or more examples. Phrases such as "embodiments" may refer to one or more embodiments, and vice versa. Phrases such as "configurations" do not mean that such configurations are essential to the subject technology or that such configurations apply to all configurations of the subject technology. The disclosure related to a configuration may apply to all configurations or one or more configurations. A configuration may provide one or more examples. Phrases such as "configurations" may refer to one or more configurations, and vice versa.

[0163] In one aspect, unless otherwise indicated, all measurements, values, ratings, positions, dimensions, sizes, and other specifications set forth in this specification (including 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 are related and with the customary practices in the art to which they belong.

[0164] In one aspect, the term "couple" or similar terms may refer to a direct connection. In another aspect, the term "couple" or similar terms may refer to an indirect connection.

[0165] Terms such as "top," "bottom," "front," "back," or similar terms, if used in the present disclosure, should be understood to refer to an arbitrary reference frame, not the ordinary gravitational reference frame. Thus, the top surface, bottom surface, front surface, and back surface may extend upward, downward, diagonally, or horizontally in the gravitational reference frame.

[0166] Various items may be arranged differently (e.g., arranged in a different order, or divided in a different manner), all without departing from the scope of the subject technology. All structural and functional equivalents of the elements throughout the various aspects of the disclosure that are known or will be known to those of ordinary skill in the art are expressly incorporated herein by reference and are intended to be covered by the claims. In addition, regardless of whether such disclosure is explicitly stated in the claims, the content disclosed herein is not intended to be committed to the public. No claim element can be interpreted according to the provisions of the sixth paragraph of 35 U.S.C. § 112, unless the element is explicitly stated using the phrase "means for...", or in the case of a method claim, the element is stated using the phrase "step for...". In addition, with respect to the use of the term "including", "having" or similar terms, such terms are intended to be inclusive in a manner similar to the term "comprising", as interpreted when "comprising" is used as a transitional word in the claims.

[0167] The title, background technology, utility model content, brief description of the drawings and abstract of the present disclosure are hereby incorporated into the present disclosure and are provided as illustrative examples of the present disclosure, rather than restrictive descriptions. It should be understood when submitting this application that they will not be used to limit the scope or meaning of the claims. In addition, in the detailed description, it can be seen that the description provides illustrative examples, and for the purpose of streamlining the present disclosure, various features are combined together in various embodiments. The disclosed method should not be interpreted as reflecting the intention that the features required by the claimed subject matter are more than the features explicitly stated in each claim. On the contrary, as reflected in the attached claims, the subject matter of the utility model lies in less than all the features of a single disclosed configuration or operation. The attached claims are hereby incorporated into the detailed description, wherein each claim exists independently as a subject matter claimed separately.

[0168] The claims are not intended to be limited to the aspects described herein, but are to be accorded the full scope consistent with the language of the claims and to encompass all legal equivalents. Nevertheless, no claim is intended to encompass subject matter that fails to satisfy the requirements of 35 U.S.C. §101, 102, or 103, nor should they be interpreted in such a manner.

Claims

1. A valve plug for a fluid connector system, characterized in that: The valve plug comprises: a first end, a second end, and a longitudinal axis extending between the first and second ends of the valve plug; an inner surface forming a recess extending through the first end of the valve plug to a bottom surface of the valve plug between the first end and the second end; a slit extending through the second end and the bottom surface of the valve plug; and a first portion of the inner surface forming a ridge extending into the recess toward the longitudinal axis, and a second portion of the inner surface forming a ramp wall; The ridge includes a first engagement surface extending radially inwardly from the first end of the valve plug to an apex of the ridge in a direction toward the longitudinal axis and a second engagement surface extending radially outwardly from the apex in a direction away from the longitudinal axis, and the ramp wall extends from the second engagement surface to the bottom surface.

2. The valve plug according to claim 1, characterized in that The sloped wall forms a straight tapered surface between the second engagement surface and the bottom surface.

3. The valve plug according to claim 2, characterized in that The tapered surface of the ramp wall extends about a longitudinal axis of the valve plug.

4. The valve plug according to claim 2, characterized in that: The tapered surface of the ramp wall extends completely around the longitudinal axis of the valve plug.

5. The valve plug according to claim 1, characterized in that The ridge and ramp wall form an annular shape extending about a longitudinal axis of the valve plug.

6. The valve plug according to claim 1, characterized in that A cross-sectional width of the recess transverse to the longitudinal axis decreases along the first engagement surface from the first end of the valve plug to an apex and increases along the second engagement surface from the apex to the ramp wall.

7. The valve plug according to claim 6, characterized in that The cross-sectional width of the recess increases along the slope wall toward the bottom surface of the valve plug.

8. The valve plug according to claim 1, characterized in that The cross-sectional width of the recess at the apex is smaller than the cross-sectional width of the recess along the slope wall.

9. The valve plug according to claim 1, characterized in that The second end of the valve plug includes a concave surface extending into the valve plug, and the slit extends through the concave surface.

10. The valve plug according to claim 1, characterized in that A distance from the first end of the valve plug to the bottom surface of the recess is smaller than a distance from the bottom surface of the recess to the second end of the valve plug.

11. A fluid connector system, characterized in that: It includes: A first valve assembly comprising: a housing having a first end, a second end, wherein the second end of the housing is opposite the first end of the housing, and an inner surface forming a cavity extending through the second end toward the first end of the housing; a post having a proximal end portion and a distal end portion, wherein the distal end portion of the post extends within the cavity in a direction from the first end of the housing toward the second end of the housing; and a fluid passage extending through the first end of the housing and the post; A second valve assembly comprising: a body having a first end and a second end, wherein the second end of the body is opposite to the first end of the body, an inner surface of a hole extending through the second end of the body toward the first end of the body, and a fluid passage extending through the first end of the body to the hole; a valve plug positioned in the bore, the valve plug having a first end, a second end, and an inner surface forming a recess extending through the first end of the valve plug to a bottom surface of the valve plug between the first and second ends, a slit extending through the second end of the valve plug and the bottom surface, and a first portion of the inner surface forming a ridge extending into the recess toward a longitudinal axis of the valve plug; and wherein, when the first valve assembly and the second valve assembly are separated from each other, the opposing inner surfaces of the valve plug forming the slit engage against each other to prevent fluid flow through the valve plug, and when the first valve assembly and the second valve assembly are connected together, the distal end portion of the post extends through the slit and ridge of the valve plug so that the fluid channel of the first valve assembly is fluidly connected to the fluid channel of the second valve assembly, and the ridge engages against the post to prevent fluid from moving between the post and the ridge.

12. The fluid connector system according to claim 11, characterized in that: A second portion of the inner surface of the valve plug forms a ramp wall having a tapered surface extending between the ridge and the bottom surface.

13. The fluid connector system according to claim 12, characterized in that: The tapered surface of the ramp wall extends about a longitudinal axis of the valve plug.

14. The fluid connector system according to claim 12, characterized in that: The tapered surface of the ramp wall extends completely around the longitudinal axis of the valve plug.

15. The fluid connector system according to claim 12, characterized in that: The cross-sectional width of the recess transverse to the longitudinal axis decreases along a first engagement surface of the valve plug extending from a first end of the valve plug to an apex of the ridge and increases along a second engagement surface of the valve plug extending from the apex to the ramp wall.

16. The fluid connector system according to claim 15, characterized in that The cross-sectional width of the recess increases along the slope wall toward the bottom surface of the valve plug.

17. The fluid connector system according to claim 12, characterized in that: The ridge and ramp wall form an annular shape extending about a longitudinal axis of the valve plug.

18. The fluid connector system according to claim 12, characterized in that: The cross-sectional width of the recess at the apex of the ridge is smaller than the cross-sectional width of the recess along the sloped wall.

19. The fluid connector system according to claim 11, characterized in that The second end of the valve plug includes a concave surface extending into the valve plug, and the slit extends through the concave surface.

20. The fluid connector system according to claim 11, characterized in that When the first and second valve assemblies are coupled together, the compressible valve of the first valve assembly is engaged against the second end of the valve plug.

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