Connector Coupling Assembly

Abstract

a coupler including: a first connector having a first end, a second end opposite the first end, and a first valve disposed between the first and second ends; a second connector having a mating portion, a connecting portion opposite the mating portion, and the second valve disposed at least partially within the mating portion; and a collar having a body removably coupled to the mating portion of the second connector and a release portion disposed on the opposite side of the body, the release portion configured to receive at least a portion of the first connector for removably coupling the first connector to the collar and the second connector such that the first end of the first connector is disposed within the second connector, wherein the first connector is configured to be disconnected from the collar and the second connector and is prevented from being reconnected to the collar after being disconnected.

Description

[Technical Field]

[0001] This application claims the benefit of U.S. Provisional Patent Application No. 63 / 426,430, filed November 18, 2022, entitled "Connector Coupling Assembly," which is incorporated herein by reference in its entirety.

[0002] The present disclosure relates generally to connectors, and more particularly to connector couplings. [Background technology]

[0003] Medical treatment often involves the infusion of medical fluids (e.g., saline or liquid medications) into a patient using an intravenous (IV) catheter, which is connected to a source of fluid, such as an IV bag, through an arrangement of flexible tubing and connectors commonly referred to as an "IV set." Often, the tubing or catheter is connected or secured to one another to allow fluid communication between various portions of the tubing or catheter.

[0004] In some applications, such tubing or catheters may become dislodged due to being improperly secured and / or may become dislodged if the connection is subjected to a force greater than that which the connection is designed to withstand. Summary of the Invention [Means for solving the problem]

[0005] One or more embodiments of the present invention are directed to a coupler that includes: a first connector having a first end, a second end opposite the first end, and a first valve disposed between the first end and the second end; a second connector having a mating portion, a connecting portion opposite the mating portion, and the second valve disposed at least partially within the mating portion; and a collar having a body removably coupled to the mating portion of the second connector and a release portion disposed on the opposite side of the body, the release portion configured to receive at least a portion of the first connector to removably couple the first connector to the collar and the second connector such that the first end of the first connector is disposed within the second connector. The first connector is configured to be disconnected from the collar and the second connector and, once disconnected, is prevented from reconnecting to the collar.

[0006] In some embodiments, the first connector is configured to decouple from the collar in response to a pull-out force exceeding a predetermined threshold force. The pull-out force is a force applied to the first connector along a central axis of the first connector. The central axis extends along at least a length of the first connector. When the first connector is coupled to the collar and the collar is coupled to the second connector, the central axis extends through the first connector, the collar, and the second connector.

[0007] In some embodiments, the first connector is configured to remain coupled to the collar when the pull-out force does not exceed a predetermined threshold force.

[0008] In some embodiments, the release portion has a slot extending longitudinally at least partially along the collar. The slot is configured to allow the release portion to expand radially outward. When the first connector is disconnected from the collar, the slot allows the release portion to flex radially inward. The first valve is prevented from contacting the second valve when the slot flexes radially inward.

[0009] In some embodiments, the first connector includes a body having an interior space that houses the first valve, the first connector includes a biasing element disposed within the interior space, the biasing element coupled to the first valve.

[0010] In some embodiments, the first connector includes a guide, and the collar includes a channel sized and shaped to receive the guide to prevent rotational movement of the first connector relative to the collar when the guide is disposed in the channel, the guide extends from an exterior surface of the first connector, and the first connector includes a wedge extending from the exterior surface opposite the guide, the wedge being sized and shaped to be received by a slot disposed on the collar.

[0011] In some embodiments, the collar includes a ring including a slot extending longitudinally through the collar, the ring including a first ring portion and a second ring portion, the slot being disposed between the first ring portion and the second ring portion, the collar including a body coupled to the ring via a channel, the body being disposed near a connecting portion of the second connector, and the ring being disposed near a first end of the first connector when the first connector and the second connector are coupled to the collar.

[0012] In some embodiments, the first valve is disposed adjacent to the second valve when the first connector is coupled to the collar.

[0013] In some embodiments, the second end of the first connector is disposed within the second connector when the first connector is coupled to the collar.

[0014] In some embodiments, the second end of the first connector is disposed within the mating portion of the second connector when the first connector is coupled to the collar.

[0015] In some embodiments, the first connector includes a wedge having a sloped portion, and the collar includes a slot sized and shaped to receive the wedge such that coupling of the first connector to the collar results in the wedge being at least partially disposed within the slot.

[0016] In some embodiments, the first connector includes a stopper configured to prevent axial movement of the collar to a region proximate the first end.

[0017] In some embodiments, the second end of the first connector has a maximum diameter that is less than a maximum diameter of the mating portion of the second connector.

[0018] In some embodiments, the coupler has a first configuration in which the first connector is disposed within the collar resulting in the collar being disposed between the first end and the second end, the coupler has a second configuration in which the first connector is coupled to the collar and the collar is coupled to the second connector, and the coupler has a third configuration in which the first connector is disconnected from the collar and the collar is coupled to the second connector.

[0019] In some embodiments, a first connector is coupled to a first section of tubing at a first end and a second connector is coupled to a second section of tubing at a connection portion.

[0020] In some embodiments, the mating portion has a maximum diameter that is greater than the maximum diameter of the connecting portion.

[0021] In some embodiments, the first end has a maximum diameter that is substantially the same as the maximum diameter of the second end.

[0022] In some embodiments, the second connector includes a pin disposed between the mating portion and the connecting portion, the pin extending at least partially into the first valve when the first connector is coupled to the collar and the collar is coupled to the second connector.

[0023] In some embodiments, when the first connector is coupled to the collar and the collar is coupled to the second connector, a fluid path is formed between the connecting portion of the second connector and the first end of the first connector.

[0024] One or more embodiments of the present invention are directed to a coupler including: a first connector having a first end, a second end opposite the first end, a central axis extending through at least the first and second ends, a body disposed between the first and second ends, and a first valve disposed near the second end; a second connector having a threaded mating portion, a connecting portion opposite the mating portion, a second valve disposed within the mating portion, and a pin disposed at least partially within the mating portion; and a collar having a release portion removably coupled to the first connector and a body removably coupled to the mating portion of the second connector. The collar is configured to couple the first connector to the second connector such that at least the first end of the first connector is disposed within the second connector. The first connector is configured to be decoupled from the collar and the second connector in response to a pull-out force exceeding a predetermined threshold force. The first connector is prevented from reconnecting to the second connector and collar once disconnected.

[0025] One or more embodiments of the present invention are directed to a coupler including: a first connector having a first end, a second end opposite the first end, a central axis extending through at least the first end and the second end, a body disposed between the first end and the second end, and a first valve disposed near the second end, the body having an interior space to accommodate the first valve and a biasing element coupled to the first valve; a second connector having a threaded mating portion, a connecting portion opposite the mating portion, a second valve disposed within the mating portion, and a pin at least partially disposed within the mating portion; and a collar having a release portion removably coupled to the first connector and a body threadedly engaged with the mating portion of the second connector, the release portion having a slot extending longitudinally through the release portion, the slot configured to allow the release portion to expand radially outward for the purpose of removably coupling the first connector to the release portion of the collar. The collar is configured to couple the first connector to the second connector such that at least a first end of the first connector is disposed within the second connector. The first connector is configured to decouple from the collar and the second connector in response to a pull-out force exceeding a predetermined threshold force. Once decoupled, the first connector is prevented from recoupled to the second connector and the collar. When the collar is coupled to the first connector and the second connector, a central axis extends through the first connector, the collar, and the second connector.

[0026] It will be understood that various configurations of the subject technology will be readily apparent to those skilled in the art from this disclosure, and that various configurations of the subject technology are shown and described herein by way of example. As will be understood, the subject technology is capable of other different configurations, and its many details can be modified in various other respects, all without departing from the scope of the subject technology. Accordingly, the summary, drawings, and detailed description are to be regarded as illustrative in nature and not as restrictive.

[0027] The accompanying drawings, which are included to provide a further understanding and are incorporated in and constitute a part of this specification, illustrate disclosed embodiments and, together with the description, serve to explain the principles of the disclosed embodiments. [Brief explanation of the drawings]

[0028] [Figure 1A] FIG. 1 is a side view of a coupler assembly according to various aspects of the present disclosure. [Figure 1B] FIG. 1B is a side cross-sectional view of the coupler assembly of FIG. 1A. [Figure 1C] 1B is an exploded side view of the coupler assembly of FIG. 1A showing the first connector, the collar, and the second connector. [Figure 2A] 1B is a perspective view of the coupler assembly of FIG. 1A with the collar coupled to the first connector, according to some embodiments of the present disclosure. [Figure 2B] FIG. 2B is a side view of the coupler assembly of FIG. 2A. [Figure 3] FIG. 1B is an enlarged view of the coupler assembly of FIG. 1A according to some embodiments of the present disclosure. [Figure 4] 1B is a top perspective view of a collar of the coupler assembly of FIG. 1A according to some embodiments of the present disclosure. [Figure 5A] 1B is a side view of the coupler assembly of FIG. 1A with the first connector disconnected from the collar and the second connector, according to some embodiments of the present disclosure. [Figure 5B] 5B is a cross-sectional view of the coupler assembly of FIG. 5A taken along plane BB. [Figure 5C] FIG. 5B is a side perspective view of the coupler assembly of FIG. 5A. [Figure 5D] FIG. 5B is an enlarged perspective view of the coupler assembly of FIG. 5A. [Figure 6] 1B is a cross-sectional side view of the coupler assembly of FIG. 1A according to some embodiments of the present disclosure. [Figure 7] 1B is a side view of the coupler assembly of FIG. 1A and a replacement coupler assembly according to some embodiments of the present disclosure. [Figure 8A] FIG. 1 is a side view illustrating a coupler assembly according to various aspects of the present disclosure. [Figure 8B] FIG. 8B is a cross-sectional side view of the coupler assembly of FIG. 8A. [Figure 9] FIG. 8B is a side perspective view of the valve of the coupler assembly of FIG. 8A. [Figure 10A] 8B is a side perspective view of the coupler assembly of FIG. 8A with the collar coupled to the first connector and disconnected from the second connector, according to some embodiments of the present disclosure. [Figure 10B] FIG. 10B is a cross-sectional side view of the coupler assembly of FIG. 10A. [Figure 11A] 8B is a side perspective view of the coupler assembly of FIG. 8A with the first connector disconnected from the collar and the second connector, according to some embodiments of the present disclosure. [Figure 11B] FIG. 11B is a side cross-sectional view of the coupler assembly of FIG. 11A. [Figure 12A] 8B is a side perspective view of the coupler assembly of FIG. 8A, showing the first connector recoupled to the collar after being detached from the collar and the second connector, according to some embodiments of the present disclosure. FIG. [Figure 12B] FIG. 12B is a cross-sectional side view of the coupler assembly of FIG. 12A. DETAILED DESCRIPTION OF THE INVENTION

[0029] The disclosed coupler assembly includes a first connector, a collar, and a second connector. The collar is configured to couple the first connector to the second connector. The coupler assembly can have a first configuration, a second configuration, and a third configuration. In the first configuration, the first connector is coupled to the collar and the first connector and collar are decoupled from the second connector. In the second configuration, the first connector is coupled to the collar and the collar is further coupled to the second connector. In the third configuration, the first connector is decoupled from the collar and the collar is coupled to the second connector.

[0030] The coupler assembly can be configured to couple a first section of tubing to a second section of tubing. For example, the first section of tubing can be coupled to a first connector, and the second section of tubing can be coupled to a second connector. The first section of tubing and / or the second section of tubing can be further coupled to a patient or a fluid source. In some embodiments, the coupler assembly allows fluid to flow from the first section of tubing to the second section of tubing. For example, a collar can couple the first connector to the second connector, such that a fluid pathway is formed through the first and second connectors, thereby allowing fluid to flow from the first section of tubing through the first and second connectors to the second section of tubing. The fluid pathway can allow fluid to flow from the second section of tubing through the second and first connectors to the first section of tubing.

[0031] In some embodiments, the collar is configured to allow the first connector to be decoupled from the second connector. For example, the collar can couple the first connector to the second connector and can be configured to allow a disconnection event to decouple the first connector from the collar and second connector. The collar can allow one-way connection of the first connector to the connector. The first connector can be discarded and replaced with a new, sterile connector, thereby preventing infection or contamination that may occur if the first connector is reused (e.g., recoupled to the collar and second connector). In some embodiments, the first connector is configured to decouple based on a force exceeding a predetermined threshold force. When a force, such as a pull-out force, is applied to the first connector, the first connector can decouple from the collar and second connector. The pull-out force can be a force that occurs along a longitudinal axis of the first connector. In some embodiments, the pull-out force is generated by tugging or pulling on a first portion of the tubing coupled to the first connector. Alternatively, the pull-out force applied to the first connector may be generated by tugging or pulling on the second connector and / or the second section of tubing connected to the second connector.

[0032] In some embodiments, the first connector is configured to prevent recoupling to the collar upon disconnection of the first connector from the collar and the second connector. For example, the first connector may be prevented from recoupling to the collar upon disconnection of the first connector from the collar to prevent attachment of the first connector, collar, and valve after a disconnection event. The collar may include a slot that allows coupling of the first connector to the collar. The slot may have an open configuration and a closed configuration. When the first connector is coupled to the collar, the slot may be in the open configuration. When the first connector is disconnected from the collar and the second connector, the slot may move to a closed configuration, thereby preventing coupling of the first connector to the collar.

[0033] The detailed description set forth below is intended to be a description of various configurations of the subject technology and is not intended to represent the only configurations in which the subject technology may be practiced. The detailed description includes specific details intended to enable a thorough understanding of the subject technology. However, it will be apparent to those skilled in the art that the subject technology may be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form to avoid obscuring the concepts of the subject technology. For ease of understanding, similar components are designated with the same element numbers. Reference numbers may have suffixes attached to indicate separate instances of common elements that are collectively referenced by the same number without the suffix.

[0034] While the following description is directed to a medical connector connection for administering medical fluids using the disclosed coupler, it will be understood that this description is merely an example of a use and does not limit the scope of the claims. The various aspects of the disclosed coupler may be used in any application where it is desired to secure connections and connectors of various tubing types.

[0035] The disclosed coupler assembly overcomes several challenges found with certain conventional couplers. One challenge with certain conventional couplers is that they may be improperly secured. Furthermore, certain conventional couplers may be designed to release or disengage in response to relatively small pull-out forces during use. For example, certain conventional couplers may release in response to pull-out forces experienced when a patient turns in bed, when a patient grasps the tubing or line on a bed rail, when a patient transfers to another bed, when manipulated by a pediatric patient, and / or when a disoriented adult patient pulls on the line. In fact, at the 2017 Annual Meeting of the Association for Vascular Access (AVA), it was reported that disconnections occur at a rate of 10% per 1,000 patients with peripheral IV catheters, which translates to approximately 33 million disconnections per year in the United States alone. The use of certain conventional couplers is undesirable because accidental or unintended disconnection of tubing, catheters, or fittings can disrupt the administration of medical fluids.

[0036] Furthermore, conventional couplers may allow a connector to be reattached to a valve or another connector after a disconnection event. Reattachment after a disconnection event may lead to infection. For example, a conventional coupler may include two connectors (e.g., a valve, connector, coupler, tubing, etc.) that are coupled together to provide a fluid pathway from a fluid source to a patient. The two connectors of a conventional coupler may become detached from each other due to a disconnection event, potentially causing one or both connectors to come into contact with the floor, another patient, another bed, or another individual, thereby causing contaminants (e.g., debris, bacteria, viruses, or other harmful elements) to become attached to the first connector. Conventional couplers may allow the connectors to be reattached, thereby increasing the risk of infection due to contaminants entering the fluid pathway.

[0037] Therefore, in accordance with the present disclosure, it would be advantageous to provide couplers and coupler / connector assemblies as described herein that allow for improved securement of fittings or connectors. The disclosed couplers and coupler / connector assemblies are structured as described herein for the purpose of allowing for secure retention of the connectors while preventing re-coupling of the connectors after a disconnection event.

[0038] 1A, 1B, and 1C are side and cross-sectional views of a coupler assembly according to various aspects of the present disclosure, respectively; and 1C is an exploded side view of the coupler assembly of FIG. 1A, showing a connector, a collar, and a valve.

[0039] 1A-1C, a coupler assembly 100 fluidly and releasably couples a portion of tubing or line to another portion of tubing or line, thereby enabling the flow of a fluid, such as a medical fluid, from a fluid source to a patient. The coupler assembly 100 may be referred to as a coupler or connector-coupler assembly. The coupler assembly 100 may include a first connector 102, a collar 120, and a second connector 140. The collar 120 may be configured to couple the first connector 102 to the second connector 140. In the depicted example, a portion of tubing may terminate with a connector / valve, such as the first connector 102 and / or the second connector 140. In some embodiments, the coupler assembly 100 includes a central axis AA, and the first connector 102, the collar 120, and the second connector 140 are coupled in series along the central axis AA. The first connector 102 and / or the second connector 140 may allow for connection and / or disconnection of tubing to allow selective fluid communication therebetween. A central axis AA may extend longitudinally along the length of the first connector 102, the collar 120, and the second connector 140.

[0040] In some embodiments, the first connector 102 is coupled to the second connector 140 via a collar 120. The collar 120 may be configured to removably couple the first connector 102 to the second connector 140, resulting in a portion of the first connector 102 being disposed within the second connector 140. The collar 120 may be configured to allow for one-way connection of the first connector 102 to the collar 120. For example, the collar 120 may be configured to prevent recoupling of the first connector 102 to the collar 120 once the first connector 102 is disconnected from the collar 120. The collar 120 may be configured to allow for one-way connection of the first connector 102 to the collar 120.

[0041] In some embodiments, a first connector 102 is coupled to a first section of tubing to allow the first section of tubing to be connected and / or disconnected to a second connector 140. The first connector 102 may include a first end 101 and a second end 103. The first end 101 may be coupled to the tubing (e.g., the first section of tubing), and the second section 103 may be configured to couple to a collar 120. In some embodiments, a section of tubing may be coupled to or engaged with the first end 101 of the first connector 102. The first connector 102 through the first end 101 may be in fluid communication with the tubing, thereby allowing fluid to pass through the first connector 102. In some embodiments, the first end 101 may have a flat surface to allow a clinician to easily clean and disinfect the first end 101. The first end 101 may be in fluid communication with the second end 103. The first end 101 and the second end 103 can be disposed along a longitudinal length of the first connector 102. For example, the first end 101 and the second end 103 can be disposed along a central axis AA. The first end 101 and / or the second end 103 can include an opening to allow the first end 101 and / or the second end 103 to be in fluid communication with one or more elements (e.g., tubing, connectors, valves, collars, fittings, etc.). For example, the first end 101 can be coupled to a tube, and the second end 103 can include an opening 110 to allow fluid communication through the first connector 102. In some embodiments, the first connector 102 includes a valve 114 ( FIG. 5 ), where the valve 114 is at least partially disposed within the opening 110.

[0042] In some embodiments, fluid can exit or flow through the first connector 102 via a second end 103 disposed opposite the first end 101. The flow path through the first connector 102 can have a straight fluid path for easier flushing and to reduce the risk of hemolysis. Optionally, the first connector 102 can include structures (e.g., raised structures, gripping structures) disposed on an outer surface of the first connector 102 to allow a clinician to more easily handle or manipulate the first connector 102. Some embodiments of the first connector 102 can provide a connector that mates with connectors on other portions of a fluid delivery system. The first connector 102 can be molded to be substantially cylindrical.

[0043] In some embodiments, the first connector 102 includes a guide 104, a stopper 106, and a wedge 108. The stopper 106 can be disposed near the wedge 108. In some embodiments, the stopper 106 is disposed between the first end 101 and the wedge 108. The stopper 106 can be disposed closer to the first end 101 than the wedge 108, and the wedge 108 can be disposed closer to the second end 103 than the stopper 106. The stopper 106 has a length significantly smaller than the wedge 108, and the stopper 106 has substantially the same width as the wedge 108. In some embodiments, the stopper 106 and the wedge 108 extend in a direction away from the central axis AA and are disposed on an outer surface 107 of the first connector 102. The wedge 108 can include a sloped portion 109. The ramp 109 can be disposed near the stopper 106. In some embodiments, the ramp 109 slopes toward the exterior surface 107 near the stopper 106.

[0044] The guide 104 can be disposed from the exterior surface 107 and can extend in a direction away from the central axis AA. In some embodiments, the guide 104 and the wedge 108 have approximately the same length. The guide 104 extends from the exterior surface 107 opposite where the wedge 108 extends from the exterior surface 107. In some embodiments, the guide 104 is substantially rectangular shaped. Alternatively, the guide 104 can be trapezoidal, circular, semicircular, triangular, or any other shape desired. In some embodiments, the guide 104 is disposed substantially equidistant from the first end 101 and the second end 103.

[0045] Similarly, a second section of tubing can be terminated by a second connector 140, thereby allowing the second section of tubing to be connected to and / or disconnected from the collar 120 via the second connector 140. The second connector 140 can include a first end 141 and a second end 143 disposed opposite the first end 141. The first end 141 can include a mating portion 144, and the second end 143 can include a connecting portion 145, which can be disposed opposite the mating portion 144. In some embodiments, a section of tubing is coupled or engaged with the connecting portion 145 of the second connector 140. In some embodiments, the connecting portion 145 includes a threaded connection to facilitate coupling with the tubing. For example, the connecting portion 145 can include a connecting portion 145 configured to couple to the section of tubing.

[0046] In some embodiments, the mating portion 144 includes structure (e.g., threads) that allows the second connector 140 to mate with the collar 120. The mating portion 144 may be integrally fitted to or otherwise engage the second end 123 of the collar 120 to allow fluid communication between the first connector 102 and the second connector 140 and a portion of tubing connected thereto when the first connector 102 is connected to the collar 120. As can be appreciated, the first connector 102 and the second connector 140 can be coupled and decoupled via the collar 120 to allow fluid communication as desired. As can be appreciated, the first connector 102 can be removably coupled to the second connector 140 via the collar 120 to provide a needle-free connection. Advantageously, the first connector 102 can be mated with the second connector 140 via the collar 120 to form a leak-free closed system, thereby allowing for the delivery of various medications or fluids.

[0047] In some embodiments, second connector 140 includes housing 147 and mating portion 144. Housing 147 can be disposed between first end 141 (e.g., mating portion 144) and second end 143 (e.g., connecting portion 145). In some embodiments, housing 147 is disposed between mating portion 144 and connecting portion 145. In some embodiments, mating portion 144 is coupled to housing 147, which is coupled to connecting portion 145. Housing 147 can have a maximum diameter that is greater than the maximum diameters of mating portion 144 and connecting portion 145. In some embodiments, mating portion 144, housing 147, and connecting portion 145 form a unitary structure. Mating portion 144 can be disposed near first end 141. Mating portion 144 can include threads configured to couple second connector 140 to collar 120 (e.g., body 125). Alternatively, mating portion 144 may include a fastener, adhesive, magnet, or other component configured to couple second connector 140 to collar 120. In some embodiments, collar 120 may be secured to second connector 140 by engaging mating portion 144.

[0048] The second connector 140 can include a valve 148 configured to control fluid flow. For example, the second connector 140 can be coupled to a second section of tubing and can include a valve 148 configured to control fluid flow to or from the second section of tubing to the first connector 102 coupled to the second connector 140. In some embodiments, the valve 148 has an open configuration and a closed configuration. In the open configuration, the valve 148 can be configured to allow fluid flow from the first end 141 to the second end 143 or vice versa. In the closed configuration, the valve 148 can be configured to block or prevent fluid flow into or out of the first end 141 (e.g., mating portion 144) and / or the second end 143 (e.g., connecting portion 145). In some embodiments, the valve 148 is in the open configuration when the first connector 102 is coupled to the second connector 140 via the collar 120. The valve 148 may be in a closed position when the first connector 102 is disconnected or separated from the second connector 140 and / or the collar 120 .

[0049] 1B-1C , when the first connector 102 is coupled to the second connector 140 via the collar 120, the valve 114 of the first connector 102 is adjacent to or disposed within the valve 148 of the second connector 140. When the first connector 102 is coupled to the second connector 140 via the collar 120, the first connector 102 may be at least partially disposed within the second connector 140, such that a pin (e.g., pin 152) within the second connector 140 extends into the valve 114. In some embodiments, when the first connector 102 is coupled to the second connector 140, a portion of the first connector 102 may extend into and be disposed within the second connector 140. The second connector 140 can include a pin 152 ( FIG. 6 ) that can be disposed within the valve 114 when the first connector 102 is coupled to the second connector 140, thereby enabling a fluid path between the first connector 102 and the second connector 140 via the valve 114 and the pin 152. The pin 152 can be configured to extend through an opening 150 ( FIG. 6 ) in the valve 148. In some embodiments, when the first connector 102 is coupled to the second connector 140, the valve 148 is disposed within the valve 114 and the pin 152 extends into the valve 114 and thus the first connector 102, thereby enabling fluid to flow from the pin 152 of the second connector 140 through the valve 114 and into the first connector 102. In some embodiments, when the first connector 102 is coupled to the second connector 140, a portion of the valve 148 and / or the pin 152 is disposed between the valve 114 and the first end 101 of the first connector 102. When the first connector 102 is coupled to the second connector 140, the valve 114 may be disposed between the first end 141 of the second connector 140 and the second end 103 of the first connector 102.

[0050] In some embodiments, the second connector 140 includes a sealing valve (e.g., valve 148) to allow fluid to pass through the valve when the second connector 140 is coupled to the first connector 102 via the collar 120, and can prevent or restrict flow when the first connector 102 is disconnected from the collar 120. In some embodiments, the second connector 140 includes a sealing valve to seal the flow path between the first end 141 and the second end 143 when the first connector 102 is disconnected from the collar 120. The sealing valve can be in an open position when the first connector 102 is coupled to the collar 120 and the collar 120 is coupled to the second connector 140, thereby allowing flow between the first connector 102 and the second connector 140 via the collar 120.

[0051] In some embodiments, second connector 140 is coupled to tubing in fluid communication with connecting portion 145, thereby allowing the tubing to receive fluid flow through second connector 140. Second connector 140 can receive fluid flow from or vice versa, first end 141 (e.g., mating portion 144) disposed opposite second end 143 (e.g., connecting portion 145). In some embodiments, second connector 140 includes droplet-free features to prevent leakage or surface contamination. Second connector 140 can further include a luer lock to prevent accidental release.

[0052] Similarly, the first connector 102 can include a sealing valve to allow flow through the valve when the first connector 102 is coupled to the collar 120 and can prevent or restrict flow when the connector is decoupled from the collar 120. The first connector 102 can include a sealing valve to seal the flow path between the first end 101 and the second end 103 when the first connector 102 is separated from the collar 120. Furthermore, the sealing valve can be in an open position when the first connector 102 is coupled to the collar 120, thereby allowing flow into the first connector 102 and between the first end 101 and the second end 103. Some embodiments realize that a portion of the sealing valve can be formed from silicone.

[0053] 1A-1C , the second connector 140 may be coupled to the first connector 102 via a collar 120. The collar 120 may include a first end 121 and a second end 123. The first end 121 of the collar 120 may be configured to couple to the first connector 102, and the second end 123 of the collar 120 may be configured to couple to the second connector 140. In some embodiments, the first end 121 of the collar 120 couples to the second end 103 of the first connector 102, and the second end 123 of the collar 120 couples to the first end 141 (e.g., mating portion 144) of the second connector 140. The second end 123 of the collar 120 may be configured to couple to the mating portion 144 of the second connector 140. In some embodiments, the second end 123 includes threads disposed on the inner surface of the collar 120, which are configured to mate with threads disposed on a mating portion 144 of the second connector 140 for the purpose of securing the collar 120 to the second connector 140.

[0054] In some embodiments, collar 120 includes a body 125, a channel 124, and a ring or release portion 122. Channel 124 can be configured to couple ring 122 to body 125. In some embodiments, channel 124 is sized and shaped to receive guide 104 of first connector 102. For example, when collar 120 is coupled to first connector 102, guide 104 can be disposed within channel 124, thereby preventing rotation of first connector 102 relative to collar 120 when first connector 102 is coupled to collar 120.

[0055] In some embodiments, the ring 122 includes a slot 126 (shown in FIGS. 4 and 5B ). The slot 126 can extend longitudinally through the ring 122. The slot 126 can be configured to receive the wedge 108 of the first connector 102. When the first connector 102 is coupled to the collar 120, the wedge 108 can be disposed through the slot 126 such that the wedge 108 extends through the slot 126 and into the body 125. The body 125 can include a channel configured to receive the wedge 108. In some embodiments, the body 125 includes a channel for securing the wedge 108 and for preventing rotational movement of the first connector 102 relative to the collar 120. In some embodiments, when the first connector 102 is coupled to the collar 120, the wedge 108 extends from the first end 121 of the collar 120 to a portion of the collar 120 near the second end 123. The ring 122 and slot 126 may be configured to allow one-way connection of the first connector 102 to the collar 120 and to prevent connection of the first connector 102 to the collar 120 when the first connector 102 is disconnected from the collar 120.

[0056] In some embodiments, the ring or release portion 122 includes a first ring portion 122a and a second ring portion 122b (FIG. 3B). The first ring portion 122a may be coupled to the second ring portion 122b at a top of the ring 122. A slot 126 may be formed between the first ring portion 122a and the second ring portion 122b, opposite where the first ring portion 122a couples to the second ring portion 122b. In other words, the slot 126 may be formed by spacing the first ring portion 122a from the second ring portion 122b. In some embodiments, the first ring portion 122a and the second ring portion 122b are configured to radially deflect in response to a force (e.g., a pull-out force above a predetermined threshold). The ring 122 may be spaced apart from the body 125 to allow the first ring portion 122a and the second ring portion 122b to distort radially without distorting the body 125 radially.

[0057] In some embodiments, the slot 126 has an open position and a closed position. The slot 126 can be in the open position by spacing the first ring portion 122a from the second ring portion 122b. For example, the slot 126 can be in the open position when the first ring portion 122a and the second ring portion 122b are radially deflected. In some embodiments, the slot 126 is in the closed position when the first ring portion 122a contacts or abuts the second ring portion 122b, thereby closing the slot 126. The slot 126 can be in the open position when a wedge 108 is disposed within or through the slot 126. In some embodiments, the wedge 108 is configured to maintain the slot 126 in the open position. In some embodiments, the wedge 108 can pass through the slot 126 only when the slot 126 is in the open position. The slot 126 can be in a closed position when the wedge 108 is removed from the slot 126 .

[0058] In some embodiments, the slot 126 is configured to transition from an open position to a closed position. Once in the closed position, the slot 126 may not easily return to the open position. As discussed further below, removing the wedge 108 transitions the slot 126 from the open position to the closed position. Once in the closed position, the first connector 102 may not be able to couple to the collar 120 because the wedge 108 cannot pass through the slot 126. The ring 122 may have a biasing force that biases the slot 126 to the closed position. In some embodiments, removing the wedge 108 from the slot 126 causes the biasing force of the ring 122 to move the slot 126 to the closed position.

[0059] 2A and 2B are exploded perspective and side views of the coupler assembly of FIG. 1A with a collar coupled to a first connector, according to some embodiments of the present disclosure.

[0060] 2A-2B, the coupler assembly 100 may be configured to be in a first configuration. In the first configuration, the first connector 102 may be coupled to the collar 120, and the first connector 102 and collar 120 may be decoupled or disconnected from the second connector 140. In some embodiments, the coupler assembly 100 is shipped or transported in the first configuration. Shipping or transporting the coupler assembly 100 in the first configuration can prevent the valve 148 from being accidentally compressed. For example, when the first connector 102 is coupled to the second connector 140 via the collar 120, the valve 148 of the second connector 140 may be compressed (e.g., by the first connector 102). In the first configuration, the first connector 102 is disconnected or disconnected from the second connector 140, such that the first connector 102 is no longer against or in proximity to the valve 148, thereby allowing a significant reduction in pressure on the valve 148. Thus, shipping or transporting the coupler assembly 100 in the first configuration allows the valve 148 to maintain a reduced pressure state, thereby terminating the useful life of the valve 148.

[0061] In the first configuration, the first connector 102 is disposed through the collar 120 along the central axis AA. The first connector 102 may be disposed through the collar 120, resulting in the collar 120 being disposed between the first end 101 and the second end 103. In some embodiments, the collar 120 is closer to the second end 103 than to the first end 101. The collar 120 may be coupled to the first connector 102, resulting in the wedge 108 being disposed through the slot 126. In some embodiments, the first connector 102 is disposed within the collar 120, resulting in the wedge 108 extending from the first end 121 to the second end 123. In other words, the first connector 102 may be disposed within the collar 120, resulting in the wedge 108 extending through the slot 126, through the ring 122, and into the body 125.

[0062] In some embodiments, the guide 104 is disposed within the channel 124. The wedge 108 disposed within the slot 126 and extending into the body 125 (e.g., via a channel in the body 125), and the guide 104 disposed within the channel 124, can prevent rotation of the collar 120 relative to the first connector 102.

[0063] In some embodiments, the collar 120 is prevented from axial movement along the central axis AA toward the first end 101 relative to the first connector 102 by the stopper 106. The stopper 106 may be configured to prevent the collar 120 from axial movement relative to the first connector 102. When the first connector 102 is coupled to the collar 120 and disposed within the collar 120, the stopper 106 can be proximate the first end 121 of the collar 120. The collar 120 may be configured to move axially toward the second end 103 relative to the first connector 102, such that the second end 103 is disposed within the collar 120, but the collar 120 may be prevented from axial movement toward the first end 101 by the stopper 106, such that the first end 101 is disposed within the collar 120.

[0064] Figure 3 is a close-up view of the coupler assembly of Figure 1A according to some embodiments of the present disclosure. Figure 4 is a top perspective view of a collar of the coupler assembly of Figure 1A according to some embodiments of the present disclosure.

[0065] 1A and 3-4 , the coupler assembly 100 can be configured to be in a second configuration. In the second configuration, the mating portion 144 of the second connector 140 is coupled to the body 125 of the collar 120 to secure the second connector 140 to the collar 120. In some embodiments, when the first connector 102 is disposed through the collar 120, the second connector 140 is coupled to the collar 120 (e.g., at the mating portion 144), such that the first connector 102 is at least partially disposed within the second connector 140. The coupler assembly 100 can be transitioned from the first configuration to the second configuration by coupling the second end 123 of the collar 120 to the mating portion 144 of the second connector 140.

[0066] 4 , the collar 120 can include an angled surface 128 and a channel 130. The angled surface 128 and the channel 130 can be configured to contact the wedge 108 when the first connector 102 is disposed within and coupled to the collar 120. In some embodiments, the angled surface 128 is disposed within the ring 122, and the channel 130 is disposed within the body 125. Alternatively, the rings 122 and 125 can be of unitary construction, resulting in the channel 130 being in communication with the angled surface 128. The angled surface 128 can be sized and shaped to abut the angled portion 109 of the wedge 108 when the collar 120 is secured to the first connector 102. A portion of the wedge 108 can abut or be disposed within the wedge channel 130.

[0067] In some embodiments, when the first connector 102 is disposed within the collar 120 and the collar 120 is coupled to the mating portion 144 of the second connector 140 such that the first connector 102 is at least partially disposed within the second connector 140, a fluid pathway is formed along the central axis AA through the first connector 102 and the second connector 140. This fluid pathway may allow fluid to flow from a first portion of tubing coupled to the first connector 102 to a second portion of tubing coupled to the second connector 140.

[0068] In some embodiments, when first connector 102 is disposed within collar 120 and first end 121 of collar 120 is near stopper 106, ramp 109 can abut slot 126. In some embodiments, wedge 108 is inserted through slot 126 such that ramp 109 abuts slot 126 and slot 126 partially closes around ramp 109. For example, slot 126 can initially be in an open position when wedge 108 is inserted through slot 126 and collar 120 moves axially toward first end 101 of first connector 101. When collar 120 approaches stopper 106 and slot 126 approaches ramp 109, slot 126 can be configured to partially close to clamp around ramp 109.

[0069] In some embodiments, the angled surface 128 is configured to abut the ramp 109 when the first connector 102 is inserted into the collar 120. The ramp surface 128 can help maintain the wedge 108 disposed within the slot 126, and thus help secure the first connector 102 to the collar 120. In some embodiments, as the collar 120 moves axially toward the first end 101 of the connector 102 and begins to abut the stopper 106, the ramp surface 128 of the slot 126 can abut or contact the ramp 109, and the wedge 108 can be secured within the collar 120. The ramp surface 128 can be configured to at least partially open the slot 126 or transition from a closed position to an open position when the first connector 102 is decoupled from the collar 120.

[0070] When the wedge 108 is disposed within the slot 126 (e.g., the inclined surface 128 and the channel 130), the first connector 102 may be secured using the collar 120 and thus may be securely coupled to the second connector 140. When the wedge 108 is disposed within the slot 126, the first ring portion 122 a and the second ring portion 122 b may be biased radially inward (e.g., biased to close the slot 126). The slot 126 may remain in an open position due to the wedge 108 being disposed within the slot 126 and the wedge 108 having a width greater than that of the slot 126. The first connector 102 may be secured to the collar 120 due to the wedge 108 being secured within the slot 126. The wedge 108 is secured within the slot 126 by the first ring portion 122a and the second ring portion 122b providing a compressive force to the wedge 108 to secure the wedge 108 within the slot 126 (e.g., the inclined surface 128 and the channel 130).

[0071] Figure 5A is a side view of the coupler assembly of Figure 1A with the first connector disconnected from the collar and the second connector, according to some embodiments of the present disclosure. Figure 5B is a cross-sectional view of the coupler assembly of Figure 5A along plane BB. Figure 5C is a side perspective view of the coupler assembly of Figure 5A. Figure 5D is an enlarged perspective view of the coupler assembly of Figure 5A. Figure 6 is a side cross-sectional view of the coupler assembly of Figure 1A, according to some embodiments of the present disclosure.

[0072] 4A-5 , the first connector 102 is configured to be decoupled from the collar 120 and the second connector 140. In some embodiments, the first connector 102 is secured to the second connector 140 via the collar 120, and the first connector 102 is configured to be decoupled from the collar 120. In some embodiments, the first connector 102 is configured to be decoupled from the collar 120 by a disconnection event caused by a pull-out force. For example, a pull-out force (e.g., force F) can be applied to the first connector 102 directly or indirectly, such as by being applied to tubing coupled to the first connector 102. The pull-out force can axially move the first connector 102 away from the collar 120 and the second connector 140 along the central axis AA, thereby decoupling the first connector 102 from the collar 120 and the second connector 140.

[0073] In some embodiments, when the force F exceeds a predetermined threshold force, the first connector 102 decouples from the collar 120 and, therefore, the second connector 140. For example, if the force F is less than the predetermined threshold force, the first connector 102 may not decouple from the collar 120 and the second connector 140. The predetermined threshold force prevents accidental or unintended decoupling based on small forces or small movements. The predetermined threshold force can be based on the ring 122 and the slot 126. For example, a ring 122 having significant stiffness can cause the slot 126 to require a large force to move from the closed position to the open position. In some embodiments, the predetermined threshold force is approximately 4 pounds (lb). The predetermined threshold force can be from about 1 lb to about 8 lb, from about 3 lb to about 7 lb, from about 4 lb to about 6 lb, or greater than 8 lb. For example, a patient may have a needle / catheter inserted into the patient's skin, and the needle / catheter may be coupled to the first connector 102 or the second catheter 140. The patient may walk away from the infusion pump or may accidentally pull on a fluid line coupled to the first connector 102 or the second connector 140, and if the force exceeds 1.8 kg (4 lb), the first connector 102 may automatically release or become disconnected from the collar 120, thereby effectively closing the fluid path between the first connector 102 and the second connector 140, as described herein.

[0074] When a disconnection event causes the first connector 102 to decouple from the collar 120, the collar 120 can remain fixedly coupled to the second connector 140. In some embodiments, the coupler assembly 100 is configured to be in a third configuration, in which the first connector 102 is decoupled from the collar 120 and the collar 120 is fixedly coupled to the second connector 140. For example, the first connector 102 can be decoupled from the collar 120 and the second connector 140, thereby causing the collar 120 to remain fixed to the second connector 140. When the first connector 102 is decoupled from the collar 120 and the second connector 140, the first connector 102 is spaced apart from the collar 120 and the second connector 140.

[0075] The first connector 102 may be decoupled from the collar 120 in response to a force F that exceeds a predetermined threshold force. When the force F exceeds the predetermined threshold force, the ramped portion 109 of the wedge 108 may exert a force against the ramped surface 128, thereby radially deflecting the ring 122 (e.g., the first ring portion 122 a and the second ring portion 122 b). The radial deflection of the ring 122 allows the wedge 108 to be removed from the slot 126 in response to the force F, thereby allowing the first connector 102 to move axially away from the collar 120 and the second connector 140 and decoupling the first connector 102 from the collar 120.

[0076] In some embodiments, when the first connector 102 is decoupled from the collar 120 and the second connector 140, the slot 126 is moved to a closed position by the ring 122 (e.g., the first ring portion 122a and the second ring portion 122b) biased radially inward. When the slot 126 is in the closed position, the first connector 102 is prevented from coupling to the second connector 140. For example, the wedge 108 may be prevented from being inserted into or disposed through the slot 126 because the slot 126 is moved to the closed position when the first connector 102 is decoupled from the collar 120. Preventing the wedge 108 from being inserted into or disposed through the slot 126 prevents the first connector 102 from coupling to the second connector 140. For example, the wedge 108 may be prevented from being inserted into or disposed through the slot 126, such that the second end 103 is only partially disposed within the collar 120, but the second end 103 is prevented from contacting, abutting, or connecting with the second connector 140.

[0077] In some embodiments, the collar 120 does not include the slot 126. The collar 120 can be configured to couple to the first connector 102 (e.g., via the wedge 108) when the force F is less than a predetermined threshold force and to prevent the first connector 102 from decoupling. For example, the collar 120 can include a compressible material that abuts the wedge 108 when the wedge 108 is disposed within the collar 120. The compressible material can be configured to exert a compressive force on the wedge 108, thereby securing the wedge 108 in place relative to the collar 120. The compressible material can be configured to compress in response to a force F that exceeds a predetermined threshold force, thereby allowing the wedge 108 to slide through the collar 120 and allowing the first connector 102 to decouple from the collar 120. The compressible material can increase in size after the first connector 102 is disconnected, thereby blocking access of the wedge 108 into the collar 120 and preventing the first connector 102 from coupling to the collar 120.

[0078] 6 , preventing recoupling of the first connector 102 to the second connector 140 by preventing disposition of the wedge 108 within the slot 126 when the slot 126 is in the closed position prevents the pin 152 and / or valve 148 from contacting the first connector 102 (e.g., valve 114). This prevents contamination of the valve 148, pin 152, and / or other components of the second connector 140 by the first connector 102 (e.g., valve 114). For example, the first connector 102 may separate from the second connector 140 and collar 120 based on a disconnection event (e.g., force F exceeding a predetermined threshold force). A disconnection event could cause the first connector 102 to fall to the floor, come into contact with another surface or the patient, or otherwise be exposed to a dirty or unsterile environment. Allowing the first connector 102 to reconnect to the second connector 140 after a disconnection event can cause contaminants (e.g., bacteria, debris, viruses, etc.) to enter the fluid pathway between the first connector 102 and the second connector 140, thereby potentially causing infection in the user (e.g., the patient). Allowing the first connector 102 to reconnect to the second connector 140 after a disconnection event can cause contaminants to enter the patient's bloodstream or other exposed areas, thereby causing sepsis.

[0079] FIG. 7 is a side view of the coupler assembly of FIG. 1A and a replacement coupler assembly, according to some embodiments of the present disclosure.

[0080] 7 , at the time of a disconnection event, the first connector 102 is prevented from reconnecting to the second connector 140 and secured to the collar 120, such as by preventing the wedge 108 from being inserted into the slot 126. After the disconnection event, the collar 120 may be disconnected from the second connector 140, and the first connector 102 and collar 120 may be discarded. Additionally, after the disconnection event, fluid flow within the second connector 140 may be stopped or reduced, thereby preventing fluid leakage or spillage. The sterile first connector 102′ and sterile collar 120′ may be removed for coupling to the second connector 140. In some embodiments, the first connector 102′ is coupled to the collar 120′ in the same manner as when the coupler assembly 100 is in the first configuration. The first connector 102' and collar 120' can be coupled to the second connector 140, and fluid flow through the second connector 140 can be resumed, thereby allowing fluid to flow through the second connector 140, the collar 120', and the first connector 102'.

[0081] Figures 8A, 8B, and 9 are side and perspective views of a coupler assembly according to various aspects of the present disclosure, a side cross-sectional view of the coupler assembly of Figure 8A, and a side perspective view of a valve of the coupler assembly of Figure 8A.

[0082] 8A-9 , coupler assembly 200 may be substantially similar to coupler assembly 100. For example, coupler assembly 200 may allow fluid to flow from a fluid source to a patient. Coupler assembly 200 may include a first connector 202, a collar 220, and a second connector 240. Like coupler assembly 100, coupler assembly 200 may prevent fluid from flowing through coupler assembly 200 in response to a disconnection event.

[0083] The collar 220 may be configured to couple the first connector 202 to the second connector 240. In some embodiments, the coupler assembly 200 includes a central axis AA, and the first connector 202, the collar 220, and the second connector 240 are coupled in series along the central axis AA. The first connector 202 and / or the second connector 240 may allow for connection and / or disconnection of tubing to allow selective fluid communication therebetween. The central axis AA may extend longitudinally along the lengths of the first connector 202, the collar 220, and the second connector 240. The first connector 202 may be similar to the first connector 102, the collar 220 may be similar to the collar 120, and the second connector 140 may be similar to the second connector 240.

[0084] Similar to the operation of coupler assembly 100, coupler assembly 200 has a first configuration, a second configuration, and a third configuration. In the first configuration, collar 220 is coupled to first connector 202, and first connector 202 and collar 220 are decoupled from second connector 240. In some embodiments, coupler assembly 200 is shipped in the first configuration. In the second configuration, first connector 202 is coupled to collar 220, and collar 220 is coupled to second connector 240, such that a portion of second connector 240 (e.g., pin 252) is disposed within first connector 202 to enable fluid communication between first connector 202 and second connector 240 through collar 220. In some embodiments, similar to coupler assembly 100, a disconnection event occurs whereby first connector 202 is decoupled from collar 220, while collar 220 remains coupled to second connector 240. In the third configuration, first connector 202 is decoupled from collar 220, while collar 220 remains coupled to second connector 240. In some embodiments, coupler assembly 200 transitions from the second configuration to the third configuration in response to a disconnection event.

[0085] In the second configuration ( FIG. 8B ), collar 220 couples first connector 202 to second connector 240, such that first connector 202 is in fluid communication with second connector 240. First connector 202 may include first end 201 and second end 203 disposed opposite first end 201. In some embodiments, first connector 202 includes tubing portion 212, body 211, and conduit 215. Body 211 may be disposed between tubing portion 212 and conduit 215. In some embodiments, body 211 includes interior space 217. Body 211 may include biasing member 213 and valve 270. Biasing member 213 may be disposed within interior space 217 and coupled to tubing portion 212. In some embodiments, biasing member 213 is a spring. Biasing member 213 may be coupled at one end to tubing portion 212 and at the other end to valve 270. Valve 270 ( FIG. 9 ) may be disposed within interior space 217 and may include a body 272 and an extension member 274. Extension member 274 may extend outwardly from body 272. In some embodiments, body 272 of valve 270 is disposed within interior space 217 and extension member 274 extends at least partially into conduit 215.

[0086] Valve 270 can have an open configuration and a closed configuration. In the open configuration, body 272 of valve 270 is disposed closer to first end 201 than when valve 270 is in a closed configuration. In the open configuration, biasing member 213 is in a contracted state, which results in valve 270 being closer to tubing portion 212 than when valve 270 is in a closed configuration. Valve 270 in the open configuration allows fluid to flow from second connector 240, through conduit 215, into interior space 217, and through tubing portion 212. In some embodiments, when valve 270 is in the open configuration, extension member 274 is at least partially disposed within interior space 217. In some embodiments, pin 252 contacts and presses against valve 270, causing valve 270 to be in the open configuration, which results in biasing member 213 being in a contracted state. For example, when collar 220 couples first connector 202 and second connector 204, pin 252 of second connector 240 is at least partially disposed within conduit 215, such that pin 252 abuts and presses against valve 270, causing valve 270 to assume an open configuration and forming a fluid path between second connector 240 and first connector 202. When pin 252 is not pressing against and / or abutting valve 270 (e.g., when coupler assembly 100 is not in the second configuration), biasing member 213 is biased to an extended state, causing valve 270 to assume a closed configuration and preventing fluid from flowing from conduit 215 to interior space 217.

[0087] As will be discussed in more detail below, in the closed configuration, the body 272 of the valve 270 is disposed closer to the second end 203 than when the valve 270 is in the open configuration. In the closed configuration, the body 272 abuts the opening of the conduit 215, thereby preventing fluid from flowing from the conduit 215 into the interior space 217. In some embodiments, when the valve 270 is in the closed configuration, the biasing member 213 is in an extended state, thereby pressing the valve 270 against the conduit 215 to seal the conduit 215.

[0088] 10A and 10B are side perspective and cross-sectional views of the coupler assembly of FIG. 8A with the collar coupled to the first connector and disconnected from the second connector, according to some embodiments of the present disclosure.

[0089] 10A and 10B , similar to coupler assembly 100, coupler assembly 200 can have a first configuration in which first connector 202 is coupled to collar 220 and first connector 202 and collar 220 are not connected to or disconnected from second connector 240. In some embodiments, coupler assembly 200 is shipped in the first configuration, thereby preventing damage to the valve of coupler assembly 200. In some embodiments, collar 220 includes release portion 222 and body 225. Release portion 222 can be disposed on opposite sides of body 225. In some embodiments, release portion 222 and body 225 form a unitary structure (e.g., collar 220). In an alternative embodiment, release portion 222 is coupled to body 225.

[0090] Release portion 222 may be coupled to body 211 to secure collar 220 to first connector 202. In some embodiments, when collar 220 is coupled to first connector 202, body 211 and conduit 215 are disposed within collar 220. Release portion 222 may circumferentially surround at least body 211 to secure first connector 202 to collar 220. In some embodiments, first connector 202 is secured within and relative to collar 220 via friction-fitting at least a portion of first connector 202 (e.g., body 211) into collar 220. For example, release portion 222 may include one or more slots 226 configured to allow release portion 222 to radially expand to receive first connector 202. In some embodiments, release portion 222 is biased radially inward and includes one or more slots 226 to allow release portion 222 to expand radially outward to receive and secure first connector 202.

[0091] The release portion 222, having one or more slots 226, allows the collar 220 to be releasably coupled to the first connector 202. For example, when the collar 220 is coupled to the first connector 202, the release portion 222 circumferentially surrounds the first connector 202 and prevents it from being disconnected (e.g., by a friction fit) unless a force F is exceeded (e.g., a pull-out force exceeds a predetermined threshold). The slots 226 may be disposed circumferentially around the release portion 220. In some embodiments, the slots 226 extend at least partially along the length of the collar 220. The collar 220 may include a first end 221 and a second end 223 disposed opposite the first end 221. The slots 226 may extend longitudinally from the first end 221 to a portion of the body 225. In some embodiments, slots 226 extend longitudinally at least partially along collar 220 such that each slot 226 is parallel to central axis AA.

[0092] The coupler assembly 200 can be transitioned from the first configuration ( FIG. 10A ) to the second configuration ( FIG. 8A ) by coupling the collar 220 to the second connector 240. For example, similar to the second connector 140, the second connector 240 can include a mating portion 244 and a connecting portion 245 disposed opposite the mating portion 244. The collar 220 can be coupled to the mating portion 244, and the connecting portion 245 can be coupled to a portion of tubing. In some embodiments, an inner surface of the collar 220 at least partially includes threads configured to engage with the mating portion 244. For example, the inner surface of the collar 220 can include threads configured to engage with the threads of the mating portion 244 to threadably couple the collar 220 to the second connector 240. In some embodiments, the collar 220 includes a first set of threads disposed on an inner surface near the second end 223, and the mating portion 244 includes a second set of threads configured to threadably engage with the first set of threads to secure the mating portion 244 and the second connector 240 to the collar 220.

[0093] In the second configuration, pin 252 biases valve 270 to place valve 270 in an open configuration. Second connector 240 may include a first end 241 and a second end 243 disposed opposite first end 241. In the second configuration, first end 214 of second connector 240 may be disposed within second end 203 of first connector 202. This places both valve 248 of second connector 240 and valve 270 of first connector 202 in an open configuration, forming a fluid pathway between first connector 202 and second connector 240.

[0094] In some embodiments, when coupler assembly 200 is in the second configuration, valve 270 is in a closed configuration. Valve 270 can be in the closed configuration by biasing element 213 to an extended state. With valve 270 in the closed configuration, conduit 215 is not in fluid communication with interior space 227. Coupler assembly 200 is shipped in the second configuration, allowing valve 270 to remain in the closed configuration to prevent debris or other particles from entering first connector 202.

[0095] 11A and 11B are side perspective and cross-sectional views of the coupler assembly of FIG. 8A with the first connector disconnected from the collar and the second connector, according to some embodiments of the present disclosure.

[0096] 11A-11B, coupler assembly 200 can be configured to be in a third configuration. Coupler assembly 200 can transition from the second configuration to the third configuration in response to a disconnection event (e.g., a pull-out force exceeding a predetermined threshold). Similar to coupler assembly 100, first connector 202 can be decoupled from collar 220 coupled (e.g., threadably engaged) to second connector 240 at the time the pull-out force exceeds the predetermined threshold. First connector 202 can be decoupled by a pull-out force F exceeding a predetermined threshold, which overcomes the frictional force between release portion 222 and first connector 202. Due to collar 220 being threadedly engaged to second connector 240, pull-out forces exceeding the predetermined threshold will not decouple collar 220 from second connector 240.

[0097] When coupler assembly 220 is in the first configuration ( FIG. 8A ), collar 220 is threadably engaged with second connector 240 (e.g., mating portion 244). Threading engagement of collar 220 with second connector 240 prevents collar 220 from decoupling from second connector 240 in response to a disconnection event (e.g., a pull-out force above a predetermined threshold). In some embodiments, in response to a disconnection event, first connector 202 decouples from release portion 222 and collar 220, while collar 220 remains threadedly engaged with second connector 240, thereby transitioning coupler assembly 200 from the second configuration ( FIG. 8A ) to the third configuration ( FIG. 11A ).

[0098] In some embodiments, second connector 240 includes valve 248. Valve 248 may be similar to valve 148 and may be configured to control fluid flow. For example, second connector 240 may be coupled to a second section of tubing and may include valve 248 configured to control fluid flow to or from the second section of tubing to first connector 202 when coupled to second connector 240. In some embodiments, valve 248 has an open configuration and a closed configuration. In the open configuration, valve 248 may be configured to allow fluid flow through second connector 240. In the closed configuration, valve 148 may be configured to block or prevent fluid flow through second connector 240. In some embodiments, when first connector 202 is coupled to second connector 240 via collar 220, valve 248 is in the open configuration. The valve 248 can be in a closed configuration when the first connector 202 is disconnected or detached from the second connector 240 and / or the collar 220 (e.g., when the coupler assembly is in the first configuration or the third configuration).

[0099] 12A and 12B are side perspective and cross-sectional views of the coupler assembly of FIG. 8A, showing the first connector recoupled to the collar after being detached from the collar and the second connector, according to some embodiments of the present disclosure.

[0100] 12A-12B , similar to coupler assembly 100, once first connector 202 is decoupled from collar 220, first connector 202 may be prevented from reconnecting to collar 220 coupled to second connector 240. For example, once first connector 202 is decoupled from release portion 222, release portion 222 may bend radially inward, preventing first connector 202 from reconnecting to collar 220. This prevents first connector 202 from reconnecting to collar 220 and second connector 240 after a disconnection event. This prevents first connector 202 from contaminating valve 248, pin 252, and / or other components of second connector 240 after a disconnection event. For example, first connector 202 may be decoupled from second connector 240 and collar 220 based on a disconnection event (e.g., force F exceeding a predetermined threshold force). A disconnection event may cause the first connector 202 to fall to the floor, come into contact with another surface or the patient, or otherwise be exposed to a dirty or unsterile environment. Allowing the first connector 202 to reconnect to the second connector 240 via the collar 220 after a disconnection event may cause contaminants (e.g., bacteria, debris, viruses, etc.) to enter the fluid pathway between the first connector 202 and the second connector 240, thereby potentially causing infection in the user (e.g., the patient). Allowing the first connector 202 to reconnect to the second connector 240 after a disconnection event may cause contaminants to enter the patient's bloodstream or other exposed areas, thereby causing sepsis.

[0101] Similar to coupler assembly 100, after a disconnection event, collar 220 can be disconnected from second connector 140 by threadably disengaging collar 220 from second connector 240, and first connector 202 and collar 220 can be discarded. Additionally, after a disconnection event, fluid flow within second connector 240 can be stopped or reduced, thereby preventing fluid leakage or spillage.

[0102] The disclosure described herein includes at least the following sections:

[0103] Item 1: A coupler comprising: a first connector having a first end, a second end opposite the first end, and a first valve disposed between the first end and the second end; a second connector having a mating portion, a connecting portion opposite the mating portion, and a second valve disposed at least partially within the mating portion; and a collar having a body detachably coupled to the mating portion of the second connector and a release portion disposed on the opposite side of the body, the release portion configured to receive at least a portion of the first connector to detachably couple the first connector to the collar and the second connector such that the first end of the first connector is disposed within the second connector. The coupler is configured to be disconnected from the collar and the second connector and to be prevented from reconnecting to the collar after being disconnected.

[0104] Item 2: The coupler of item 1, wherein the first connector is configured to decouple from the collar in response to a pull-out force exceeding a predetermined threshold force.

[0105] Item 3: The coupler of item 2, wherein the withdrawal force is a force applied to the first connector along a central axis of the first connector.

[0106] Item 4: The coupler of item 3, wherein the central axis extends along at least the length of the first connector.

[0107] Item 5: The coupler of item 3, wherein when the first connector is coupled to the collar and the collar is coupled to the second connector, a central axis extends through the first connector, the collar, and the second connector.

[0108] Item 6: The coupler of item 2, wherein the first connector is configured to remain coupled to the collar when the pull-out force does not exceed a predetermined threshold force.

[0109] Item 7: The coupler of item 1, wherein the ring has a slot extending longitudinally through the ring.

[0110] Item 8: The coupler of item 7, wherein the slot is configured to allow the release portion to expand radially outward.

[0111] Item 9: The coupler of item 8, wherein the slot allows the release portion to flex radially inward when the first connector is disconnected from the collar.

[0112] Item 10: The coupler of item 8, wherein the first valve is prevented from contacting the second valve when the slot is bent radially inward.

[0113] Item 11: The coupler of item 8, wherein the first connector includes a body having an interior space, the interior space housing the first valve.

[0114] Item 12: The coupler of item 11, wherein the first connector includes a biasing element disposed within the interior space, the biasing element being coupled to the first valve.

[0115] Item 13: The coupler of item 1, wherein the first connector includes a guide, and the collar includes a channel sized and shaped to receive the guide for the purpose of preventing rotational movement of the first connector relative to the collar when the guide is disposed within the channel.

[0116] Item 14: The coupler of item 13, wherein the guide extends from an outer surface of the first connector, and the first connector includes a wedge extending from the outer surface opposite the guide, the wedge being sized and shaped to be received by a slot disposed on the collar.

[0117] Item 15: The coupler of item 1, wherein the collar includes a ring, the ring including a slot extending longitudinally through the collar.

[0118] Item 16: The coupler of item 15, wherein the ring includes a first ring portion and a second ring portion, and the slot is disposed between the first ring portion and the second ring portion.

[0119] Item 17: A coupler according to item 15, wherein the collar includes a body connected to a ring via a channel, and when the first connector and the second connector are connected to the collar, the body is disposed near the connecting portion of the second connector and the ring is disposed near the first end of the first connector.

[0120] Item 18: The coupler of item 1, wherein the first valve is disposed adjacent to the second valve when the first connector is connected to the collar.

[0121] Item 19: The coupler of item 1, wherein the second end of the first connector is disposed within the second connector when the first connector is coupled to the collar.

[0122] Item 20: The coupler of item 1, wherein the second end of the first connector is disposed within the mating portion of the second connector when the first connector is coupled to the collar.

[0123] Item 21: The coupler of item 1, wherein the first connector includes a wedge having a sloped portion, and the collar includes a slot sized and shaped to receive the wedge such that coupling of the first connector to the collar results in the wedge being at least partially disposed within the slot.

[0124] Item 22: The coupler of item 1, wherein the first connector includes a stopper configured to prevent axial movement of the collar to a region near the first end.

[0125] Item 23: The coupler of item 1, wherein the second end of the first connector has a maximum diameter that is smaller than a maximum diameter of the mating portion of the second connector.

[0126] Item 24: The coupler of item 1, wherein the coupler has a first configuration, and in the first configuration, the first connector is disposed within a collar such that the collar is disposed between the first end and the second end.

[0127] Item 25: The coupler of item 1, wherein the coupler has a second configuration, in which the first connector is coupled to the collar and the collar is coupled to the second connector.

[0128] Item 26: The coupler of item 1, wherein the coupler has a third configuration, in which the first connector is disconnected from the collar and the collar is coupled to the second connector.

[0129] Item 27: The coupler of item 1, wherein the first connector is coupled to a first section of tubing at a first end and the second connector is coupled to a second section of tubing at a connection portion.

[0130] Item 28: The coupler of item 1, wherein the mating portion has a maximum diameter greater than a maximum diameter of the connecting portion.

[0131] Item 29: The coupler of item 1, wherein the first end has a maximum diameter that is substantially the same as a maximum diameter of the second end.

[0132] Item 30: The coupler of item 1, wherein the second connector includes a pin disposed between the mating portion and the connecting portion, the pin extending at least partially into the first valve when the first connector is coupled to the collar and the collar is coupled to the second connector.

[0133] Item 31: A coupler according to item 1, wherein when the first connector is coupled to the collar and the collar is coupled to the second connector, a fluid path is formed between the connecting portion of the second connector and the first end of the first connector.

[0134] Item 32: A coupler comprising: a first connector having a first end, a second end opposite the first end, a central axis extending through at least the first end and the second end, a body disposed between the first end and the second end, and a first valve disposed near the second end; a second connector having a threaded mating portion, a connecting portion opposite the mating portion, a second valve disposed within the mating portion, and a pin disposed at least partially within the mating portion; and a collar having a release portion detachably coupled to the first connector and a body detachably coupled to the mating portion of the second connector. The collar is configured to couple the first connector to the second connector such that at least the first end of the first connector is disposed within the second connector. The first connector is configured to be decoupled from the collar and the second connector in response to a pull-out force exceeding a predetermined threshold force. The first connector is prevented from reconnecting to the second connector and collar after being disconnected.

[0135] Item 33: A coupler comprising: a first connector having a first end, a second end opposite the first end, a central axis extending through at least the first end and the second end, a body disposed between the first end and the second end, and a first valve disposed near the second end, the body having an interior space accommodating the first valve and a biasing element coupled to the first valve; a second connector having a threaded mating portion, a connecting portion opposite the mating portion, a second valve disposed within the mating portion, and a pin at least partially disposed within the mating portion; and a collar having a release portion detachably coupled to the first connector and a body threadedly engaged with the mating portion of the second connector, the release portion having a slot extending longitudinally through the release portion, the slot configured to allow the release portion to expand radially outward for the purpose of detachably coupling the first connector to the release portion of the collar. The collar is configured to couple the first connector to the second connector such that at least a first end of the first connector is disposed within the second connector. The first connector is configured to be decoupled from the collar and the second connector in response to a pull-out force exceeding a predetermined threshold force. The first connector is prevented from recoupling with the second connector and the collar after being decoupled. When the collar is coupled to the first connector and the second connector, a central axis extends through the first connector, the collar, and the second connector.

[0136] This disclosure is provided to enable those skilled in the art to practice the various aspects described herein. This disclosure provides various illustrative examples of the subject technology, and the subject technology is not limited to these illustrative examples. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects.

[0137] Reference to a singular element is not intended to mean "one and only one" unless specifically stated otherwise, but rather "one or more." The term "some" means one or more unless specifically stated otherwise. Masculine pronouns (e.g., his) include feminine or neuter (e.g., her or its) and vice versa. Headings and subheadings, where present, are used merely for convenience and do not limit the invention.

[0138] 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, various alternative configurations and operations described herein may be considered at least equivalent.

[0139] The use of a phrase such as "aspect" does not imply that the aspect is essential to the subject technology or that the aspect applies to all configurations of the subject technology. Disclosure relating to one aspect may apply to all configurations or one or more configurations. An aspect may provide one or more examples. Such a phrase "aspect" can refer to one or more aspects, and vice versa. A phrase such as "embodiment" does not imply that the embodiment is essential to the subject technology or that the embodiment applies to all configurations of the subject technology. Disclosure relating to one embodiment may apply to all embodiments or one or more examples. An embodiment may provide one or more examples. Such a phrase "embodiment" can refer to one or more examples, and vice versa. A phrase such as "configuration" does not imply that the configuration is essential to the subject technology or that the configuration applies to all configurations of the subject technology. Disclosure relating to one configuration may apply to all configurations or one or more configurations. A configuration may provide one or more examples. The phrase "such a configuration" can mean one or more configurations, and vice versa.

[0140] In one aspect, unless otherwise specified, all measurements, values, orders, positions, magnitudes, sizes, and other specifications set forth in this specification, including the following claims, are approximate and not precise, and are intended to have a reasonable range consistent with the function to which they relate or with customary practices in the relevant art.

[0141] In one aspect, the term "coupled" or the like can mean directly coupled. In another aspect, the term "coupled" or the like can mean indirectly coupled.

[0142] Terms such as "top," "bottom," "front," and "rear" as used in this disclosure should be understood to refer to any coordinate system other than the typical gravitational coordinate system. Thus, the top, bottom, front, and rear surfaces can extend upward, downward, diagonally, or horizontally in the gravitational coordinate system.

[0143] Various items may be arranged in a variety of ways (e.g., arranged in a different order or partitioned in a different way) without departing from the scope of the subject technology. All structural or functional equivalents to the elements of the various embodiments described throughout this disclosure that are known or later become known to those of ordinary skill in the art are expressly incorporated herein by reference and are intended to be encompassed by the claims. Furthermore, nothing disclosed herein is intended to be made available to the public, regardless of whether the disclosure is expressly recited in the claims. A claim element is not to be construed under the provisions of 35 U.S.C. 112, sixth paragraph, unless the element is expressly recited using the phrase "means for," or, in the case of a method claim, unless the element is recited using the phrase "step for." Furthermore, to the extent terms such as "comprise" or "have" are used, these terms are intended to be inclusive in the same manner as the term "comprises," since "comprises" is interpreted as a transitional term in the claims when employed.

[0144] The title, background, summary, brief description of the drawings, and abstract of this disclosure are provided herein as illustrative examples of the disclosure, not as a limiting description. They are presented with the understanding that they will not be used to limit the scope or meaning of the claims. In addition, it will be appreciated that the detailed description provides illustrative examples, and that various features are grouped together in various embodiments for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed subject matter requires features other than those expressly recited in each claim. Rather, as reflected in the following claims, inventive subject matter lies in less than all features of a single disclosed structure or operation. The following claims are incorporated into the detailed description, with each claim standing on its own as separately claimed subject matter.

[0145] The claims are not intended to be limited to the embodiments described herein, but are intended to be accorded the full scope consistent with the claims set forth and to encompass all legal equivalents. However, no claim is intended to encompass subject matter that fails to meet the requirements of §§ 101, 102, or 103, and no claim should be interpreted as failing to meet the requirements of §§ 101, 102, or 103.

Claims

1. A coupler, a first connector having a first end, a second end opposite the first end, and a first valve disposed between the first end and the second end; a second connector having a mating portion, a connecting portion opposite the mating portion, and a second valve disposed at least partially within the mating portion; a collar having a body removably coupled to the mating portion of the second connector and a release portion disposed on an opposite side of the body, the release portion configured to receive at least a portion of the first connector to removably couple the first connector to the collar and the second connector such that the first end of the first connector is disposed within the second connector; A coupler, wherein the first connector is configured to be disconnected from the collar and the second connector and prevented from reconnecting to the collar after being disconnected.

2. The coupler of claim 1 , wherein the first connector is configured to decouple from the collar in response to a pull-out force exceeding a predetermined threshold force.

3. 3. The coupler of claim 2, wherein the pull-out force is a force applied to the first connector along a central axis of the first connector.

4. 4. The coupler of claim 3, wherein the central axis extends through the first connector, the collar, and the second connector when the first connector is coupled to the collar and the collar is coupled to the second connector.

5. The coupler of claim 2 , wherein the first connector is configured to remain coupled to the collar when the pull-out force does not exceed the predetermined threshold force.

6. The coupler of claim 1 , wherein the release portion comprises a slot extending longitudinally at least partially along the collar.

7. The coupler of claim 6 , wherein the slot is configured to allow the release portion to expand radially outward.

8. The coupler of claim 7 , wherein the slot allows the release portion to flex radially inward when the first connector is disconnected from the collar.

9. 8. The coupler of claim 7, wherein the first valve is prevented from contacting the second valve when the slot is bent radially inward.

10. The coupler of claim 1 , wherein the first connector includes a body having an interior space, the interior space housing the first valve.

11. The coupler of claim 10 , wherein the first connector includes a biasing element disposed within the interior space, the biasing element coupled to the first valve.

12. 2. The coupler of claim 1, wherein the first connector includes a guide, and the collar includes a channel sized and shaped to receive the guide for the purpose of preventing rotational movement of the first connector relative to the collar when the guide is disposed within the channel.

13. 13. The coupler of claim 12, wherein the guide extends from an exterior surface of the first connector, the first connector including a wedge extending from the exterior surface opposite the guide, the wedge being sized and shaped to be received by a slot disposed on the collar.

14. 2. The coupler of claim 1, wherein the first valve is disposed adjacent to the second valve when the first connector is coupled to the collar.

15. 2. The coupler of claim 1, wherein the second end of the first connector is disposed within the second connector when the first connector is coupled to the collar.

16. 2. The coupler of claim 1, wherein the first connector includes a wedge having a sloped portion, and the collar includes a slot sized and shaped to receive the wedge such that coupling of the first connector to the collar results in the wedge being at least partially disposed within the slot.

17. The coupler of claim 1 , wherein the first connector includes a stopper configured to prevent axial movement of the collar to a region adjacent the first end.

18. 2. The coupler of claim 1, wherein the second connector includes a pin disposed between the mating portion and the connecting portion, the pin extending at least partially into the first valve when the first connector is coupled to the collar and the collar is coupled to the second connector.

19. A coupler, a first connector having a first end, a second end opposite the first end, a central axis extending through at least the first end and the second end, a body disposed between the first end and the second end, and a first valve disposed near the second end; a second connector having a threaded mating portion, a connecting portion opposite the mating portion, a second valve disposed within the mating portion, and a pin disposed at least partially within the mating portion; a collar having a release portion removably coupled to the first connector and a body removably coupled to the mating portion of the second connector; the collar is configured to couple the first connector to the second connector such that at least the first end of the first connector is disposed within the second connector; the first connector is configured to decouple from the collar and the second connector in response to a pull-out force exceeding a predetermined threshold force; A coupler wherein the first connector is prevented from reconnecting to the second connector and the collar after being disconnected.

20. A coupler, a first connector having a first end, a second end opposite the first end, a central axis extending through at least the first end and the second end, a body disposed between the first end and the second end, and a first valve disposed near the second end, wherein the body has an interior space that accommodates the first valve and a biasing element coupled to the first valve; a second connector having a threaded mating portion, a connecting portion opposite the mating portion, a second valve disposed within the mating portion, and a pin disposed at least partially within the mating portion; a collar having a release portion removably coupled to the first connector and a body threadedly engaged with the mating portion of the second connector, the release portion having a slot extending longitudinally therethrough, the slot configured to allow the release portion to expand radially outward for the purpose of removably coupling the first connector to the release portion of the collar; the collar is configured to couple the first connector to the second connector such that at least the first end of the first connector is disposed within the second connector; the first connector is configured to decouple from the collar and the second connector in response to a pull-out force exceeding a predetermined threshold force; the first connector is prevented from reconnecting to the second connector and the collar after being disconnected; a coupler, wherein the central axis extends through the first connector, the collar, and the second connector when the collar is coupled to the first connector and the second connector.

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