Lock connector linking assembly

Abstract

The coupler has a first connector, which includes a first end having an inlet and a second end opposite to the first end having an opening. The first connector includes at least one engaging member positioned between the first end and the second end. The coupler has a second connector, which includes a body extending from an outlet portion. The body is configured to be at least partially inserted into the opening to connect the second connector to the first connector. The outlet portion includes at least one arm having a fixing member configured to engage with the engaging member to secure the first connector to the second connector. The outlet portion is exposed when the second connector is connected to the first connector. The first connector is configured to separate from the second connector in response to an uplift force exceeding a predetermined threshold force.

Description

Technical Field

[0001] The present disclosure generally relates to connectors, and more particularly to connector joints.

Background Art

[0002] Medical treatments often involve the infusion of a medical fluid (e.g., saline or liquid medicine) to a patient using an intravenous (IV) catheter connected to a fluid source, such as an IV bag, through a combination of flexible tubes and joints commonly referred to as an "intravenous (IV) set." Often, the tubes or catheters are connected or fixed to each other to allow for fluid communication between various parts of the tubes or catheters.

[0003] In some applications, such tubes or catheters can disconnect if they are inappropriately secured and / or if the connection is subjected to a force greater than the force for which the connection was designed to remain intact.

Summary of the Invention

[0004] One or more embodiments of the present disclosure include a first connector having an inlet at a first end and an outlet at a second end opposite the first end, the first connector including at least one engagement member disposed between the first end and the second end, and a second connector including a body extending from an outlet portion, the body being configured to be at least partially inserted into the outlet to connect the second connector to the first connector, the outlet portion having at least one arm including a fixing member configured to engage the engagement member to fix the first connector to the second connector, the outlet portion being exposed when the second connector is connected to the first connector. The first connector is configured to separate from the second connector in response to a pulling force exceeding a predetermined threshold force.

[0005] In some embodiments, the first connector includes a connecting portion located at a first end, and a first connector body extending from the connecting portion, the first connector body including an opening. The first connector body may include at least one engaging member.

[0006] In some embodiments, the fixing member is a projection extending from the distal end of at least one arm. The engaging member is a groove positioned circumferentially in the first connector, which may be sized and shaped to receive and secure the projection of at least one arm when the second connector is connected to the first connector.

[0007] In some embodiments, the fixing member is a recess located at the distal end of at least one arm. The engaging member is a circumferentially positioned edge of the first connector, and the recess of at least one arm may be sized and shaped to receive and secure the edge when the second connector is connected to the first connector.

[0008] In some embodiments, the pull-out force is a force applied to the first connector along its central axis, the central axis extending at least along the length of the first connector. The central axis may extend through the first and second connectors when the first connector is connected to the second connector.

[0009] In some embodiments, at least one engaging member is a groove circumferentially positioned on the first connector. At least one engaging member is a circumferentially positioned edge on the first connector.

[0010] In some embodiments, the outlet portion includes an outlet, and the body of the second connector includes a channel extending from the outlet to the opening of the second connector so that the outlet and the opening of the second connector are in fluid communication.

[0011] In some embodiments, at least one arm includes a first portion extending away from the exit portion and a second portion extending radially inward. At least one arm is configured to be biased radially inward and deflect radially outward.

[0012] In some embodiments, the fixing member detaches from the engaging member in response to a pull-out force exceeding a predetermined threshold force.

[0013] In some embodiments, the first connector is configured to maintain connection to the second connector if the pulling force does not exceed a predetermined threshold force.

[0014] In some embodiments, the coupler has a first configuration in which a first connector is connected to a second connector so as to form a fluid path. The coupler has a second configuration in which the first connector is separated from the second connector to prevent the formation of a fluid path.

[0015] One or more embodiments of the present disclosure relate to a coupler having a first connector having a first end having a connecting portion having an inlet, a second end having an opening opposite to the first end, and a first connector body extending from the connecting portion to the second end, the first connector comprising at least one engaging member disposed on the first connector body; and a second connector having an outlet portion having an outlet, and a body extending from the outlet portion, the body comprising at least one arm having a fixing member configured to be at least partially inserted into the opening to connect the second connector to the first connector, and the outlet portion having a fixing member configured to engage with the engaging member to fix the first connector to the second connector, the at least one arm being configured to be biased radially inward and deflected radially outward. When the second connector is connected to the first connector, the outlet portion is exposed and a fluid path is formed from the inlet of the first connector to the outlet of the second connector. The first connector is configured to separate from the second connector in response to an extraction force exceeding a predetermined threshold force.

[0016] One or more embodiments of the present disclosure include a substantially cylindrical first connector comprising a first end having a connecting portion having an inlet, a second end opposite to the first end having an opening, and a first connector body extending from the connecting portion to the second end, the first connector comprising at least one engaging member circumferentially disposed on the first connector body between the first end and the second end, and a second connector comprising an outlet portion having an outlet, and a body extending from the outlet portion, the body comprising a channel for fluid communication with the outlet, and the body is open The present invention relates to a coupler having a second connector, which includes at least one arm having a fixing member configured to be at least partially inserted into the opening and configured to connect a second connector to a first connector, with the outlet portion configured to engage with an engaging member to fix the first connector to the second connector, wherein the at least one arm includes a first portion extending away from the outlet portion and a second portion extending radially inward, and the at least one arm is configured to be biased radially inward and deflected radially outward. When the second connector is connected to the first connector, the outlet portion is exposed and a fluid path is formed from the inlet of the first connector to the outlet of the second connector. In response to an uplift force exceeding a predetermined threshold force, the fixing member is configured to disengage from the engaging member and the first connector is configured to separate from the second connector.

[0017] Various configurations of the subject art will be readily apparent to those skilled in the art from this disclosure, but it will be understood that these various configurations of the subject art are shown and described as illustrative. As will be recognized, the subject art is capable of other different configurations, and some of its details can be modified in various other ways without all of them departing from the scope of the subject art. Accordingly, the summary, drawings and detailed description should be considered illustrative and not restrictive in nature.

[0018] The accompanying drawings are included for further understanding and are incorporated into this specification and constitute part thereof, illustrating the disclosed embodiments and, together with their description, illustrating the principles of the disclosed embodiments. [Brief explanation of the drawing]

[0019] [Figure 1] This is a side view of a coupler assembly in a first configuration according to various aspects of the present disclosure. [Figure 2] This is a side view of the coupler assembly of Figure 1 in a second configuration according to various aspects of the present disclosure. [Figure 3] This is an enlarged side view of the coupler assembly shown in Figure 1, according to various aspects of the present disclosure. [Figure 4] This is a side view of a coupler assembly in a second configuration according to various aspects of the present disclosure. [Modes for carrying out the invention]

[0020] The disclosed coupler assembly includes a first connector and a second connector. The first connector is configured to connect to the second connector. The coupler assembly may have a first configuration and a second configuration. In the first configuration, the first connector is connected to the second connector, forming a fluid path that allows fluid to flow from the first connector to the second connector. In the second configuration, the first connector is separated from the second connector, and no fluid path is formed, thereby preventing fluid flow from the first connector to the second connector.

[0021] A coupler assembly may be configured to connect a first portion of a pipe to a second portion of the pipe. For example, the first portion of the pipe may be connected to a first connector, and the second portion of the pipe may be connected to a second connector. The first portion of the pipe and / or the second portion of the pipe may also be connected to a patient or a fluid source. In some embodiments, the coupler assembly allows for fluid flow from the first portion of the pipe to the second portion of the pipe. For example, the first connector may be connected to a second connector such that a fluid path is formed through the first and second connectors, allowing for fluid flow from the first portion of the pipe through the first and second connectors to the second portion of the pipe. The fluid path may also allow for fluid flow from the second portion of the pipe through the second and first connectors to the first portion of the pipe.

[0022] In some embodiments, the first and second connectors provide a unidirectional fluid flow. For example, when the first connector is connected to the second connector, the fluid can flow from the second connector to the first connector, but not from the first connector to the second connector. In some embodiments, the separation of the first connector from the second connector stops the fluid flow from the second connector to the first connector, thereby preventing leakage when the first connector is separated from the second connector. In some embodiments, upon separation of the first connector from the second connector, the first connector is sterilized (e.g., via a sterile cloth or sterilizer) or replaced with a new sterile connector to prevent infection or contamination that may occur if the first connector is reused without sterilization. In some embodiments, the first connector is configured to separate based on a force exceeding a predetermined threshold force. When a force, such as an uplift force, exceeding a predetermined threshold force is applied to the first connector, the first connector may separate from the second connector. The pull-out force may be a force generated along the longitudinal axis of the first connector. In some embodiments, the pull-out force is produced by pulling or tugging a first portion of the tubing connected to the first connector. Alternatively, the pull-out force applied to the first connector may be produced by pulling or tugging a second portion of the tubing connected to the second connector and / or the second connector.

[0023] In some embodiments, when the first connector is separated from the second connector, the first connector is configured to be reconnected to the second connector. For example, when the first connector is separated from the second connector (e.g., due to a disconnection), the first connector may be configured to allow reconnection to the second connector after the disconnection has occurred.

[0024] The detailed description set forth below is intended as a description of various configurations of the present technology and is not intended to present the limited configurations in which the present technology may be implemented. The detailed description includes specific details for the purpose of providing a complete understanding of the subject technology. However, it will be apparent to those skilled in the art that the present technology can be implemented 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. Similar components are denoted by the same element numbers for ease of understanding. Reference numerals are generally referred to by the same number without subscripts, but may be subscripted to represent separate examples of common elements.

[0025] The following description is directed to the connection of a medical fitting for the administration of a medical fluid using the disclosed coupler, but it is to be understood that this description is merely an example of usage and does not limit the scope of the claims. Various aspects of the disclosed coupler can be used in any application where it is desirable to secure the connection of various tubes and fittings.

[0026] The disclosed coupler assembly overcomes several problems discovered with certain conventional couplers. One problem associated with certain conventional couplers is that a particular conventional coupler can be inappropriately secured. Further, in use, a particular conventional coupler can be designed to release or disengage in response to a relatively small withdrawal force. For example, a particular conventional coupler can release in response to a withdrawal force received when a patient turns over in bed, when a patient catches tubing or a line on the bed railing, when a patient is moved to a different bed, when a pediatric patient fiddles with it, and / or when a confused adult patient pulls out their own line. In fact, at the 2017 annual scientific session of the Association for Vascular Access (AVA), a 10% dropout rate was reported for 1,000 patients wearing a peripheral intravenous (IV) catheter, resulting in approximately 33 million dropouts per year in the United States alone. The use of a particular conventional coupler is undesirable because accidental or unintentional dropout of tubing, a catheter, or a fitting can interfere with the administration of a medical fluid.

[0027] Further, some conventional couplers require the use of a clamp, such as an infusion clamp. For example, an infusion clamp can be used to prevent separation of a first connector from a second connector. The first connector can be coupled to the second connector to form a coupler, and the infusion clamp can be placed around the coupler to secure the first connector to the second connector and prevent separation. Infusion clamps are difficult to handle, bulky, and can increase material costs. Some infusion clamps do not allow for separation in response to disengagement, thereby causing harm or injury to the user. For example, in some instances, separation of the first connector from the second connector can necessarily result in further injury to the user. Some infusion clamps do not allow for separation of the first connector from the second connector.

[0028] Accordingly, according to this disclosure, it is advantageous to provide couplers and coupler / connector assemblies described herein that enable improved fixation of fittings or connectors. The disclosed couplers and coupler / connector assemblies are constructed as described herein to enable secure retention of a first connector, while at the same time enabling separation after the occurrence of detachment.

[0029] Figure 1 is a side view of a coupler assembly in a first configuration according to various embodiments of this disclosure. Figure 2 is a side view of the coupler assembly of Figure 1 in a second configuration according to various embodiments of this disclosure. Figure 3 is a magnified view of the side view of the coupler assembly of Figure 1 according to various embodiments of this disclosure.

[0030] Referring to Figures 1 to 3, the coupler assembly 100 enables the flow of fluid, such as medical fluid, from a fluid source to a patient end by fluidly connecting and releasably connecting a portion of a pipe or line to another portion of the pipe or line. The coupler assembly 100 may include a first connector 102 and a second connector 140. The first connector 102 may be configured to connect to the second connector 140. In some embodiments, the first connector 102 and / or the second connector 140 are one-way connectors. In the examples depicted, a portion of a pipe may terminate with a connector / valve such as the first connector 102 and / or the second connector 140. In some embodiments, fluid from a fluid source flows through the coupler assembly 100 to the patient end. A cannula or needle may be inserted into the patient (e.g., at the patient end), allowing medical fluid to flow from the fluid source through the coupler assembly 100 to the patient at the patient end. In some embodiments, the separation of the first connector 102 from the second connector 140 interrupts or prevents the flow from the fluid source to the patient end (e.g., the patient). The first connector 102 can be connected to the fluid source via a portion of the first tubing, and the second connector 140 can be connected to the patient via a portion of the second tubing. In some embodiments, when the first connector 102 is connected to the second connector 140, a fluid path is formed, allowing the fluid to flow from the second connector 140 to the first connector 102.

[0031] In some embodiments, the coupler assembly 100 includes a central axis AA, and the first connector 102 and the second connector 140 are connected in a continuous manner along the central axis AA. The first connector 102 and / or the second connector 140 may enable the connection and / or disconnection of pipes, thereby enabling selective fluid communication between them. The central axis AA may extend longitudinally along the length of the first connector 102 and the second connector 140.

[0032] The coupler assembly 100 may have a first configuration (Figure 1) and a second configuration (Figure 2). In the first configuration, the first connector 102 is connected to the second connector 140, and fluid flows from the first connector 102 to the second connector 140, resulting in the formation of a fluid path between the first connector 102 and the second connector 140, allowing fluid to flow from the first connector 102 to the second connector 140. In some embodiments, the coupler assembly 100 transitions from the first configuration to the second configuration in response to the occurrence of a disconnection. A disconnection can occur even when an tensile force is applied to the first connector 102, which can cause axial movement of the first connector 102 relative to the second connector 140. In some embodiments, axial movement of the first connector 102 relative to the second connector 140 is caused when the tensile force applied to the first connector 102 exceeds a predetermined threshold force.

[0033] In some embodiments, the first connector 102 is connected to a first portion of a pipe so as to enable the first portion of the pipe to be connected to and / or disconnected from the second connector 140. The first connector 102 may be connected to a portion of the pipe that connects to a fluid source. The first connector 102 may include a first end 101 and a second end 103. The first end 101 may be connected to a pipe (e.g., a first portion of the pipe), and the second end 103 may be configured to connect to a portion of the second connector 140. For example, the second end 103 of the first connector 102 may be configured to connect to a portion of the second connector 140 so as to enable the first connector 102 to be in fluid communication with the second connector 140. In some embodiments, a portion of the pipe may be connected to or engaged with the first end 101 of the first connector 102. The first connector 102 can communicate with pipes via the first end 101, allowing fluid to pass through the first connector 102.

[0034] 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 may be arranged along the longitudinal length of the first connector 102. For example, the first end 101 and the second end 103 may be arranged along the central axis AA.

[0035] In some embodiments, the first connector 102 is substantially cylindrical in shape. The first connector 102 may include a connecting portion 106 and a body 108. The connecting portion 106 may be connected to the body 108. The connecting portion 106 may be located at the first end 101 and configured to connect to a portion of tubing and / or a fluid source. In some embodiments, the connecting portion 106 includes a threaded portion 107 configured to connect to a portion of tubing, a syringe, a fluid source, a container, or any other component. In some embodiments, the threaded portion 107 has a diameter smaller than the maximum diameter of the connecting portion 106. The threaded portion 107 may include one or more threads to enable the threaded portion 107 to connect to a portion of tubing and / or a fluid source. The threaded portion 107 may extend from the connecting portion 106 along the central axis AA. The connecting portion 106 may include an inlet 112. The inlet 112 may be an opening that allows fluid to flow into the first connector 102. The inlet 112 may be located close to the first end 102. In some embodiments, the inlet 112 is located on the threaded portion 107.

[0036] In some embodiments, the connecting portion 106 is connected to the main body 108. The main body 108 may be positioned closer to the second end 103 compared to the connecting portion 106. In some embodiments, the main body 108 has a length greater than the length of the connecting portion 106. The connecting portion 106 may be removably connected to the main body 108. In some embodiments, the connecting portion 106 and the main body 108 form a single structure. The main body 108 may include a distal end 109. The distal end 109 may have a larger diameter than the rest of the main body 108. In some embodiments, the main body 108 widens outward as it approaches the distal end 109.

[0037] In some embodiments, the connecting portion 106 is in fluid communication with the main body 108. For example, the first end 101 and / or the second end 103 may include openings or channels to allow the first end 101 and / or the second end 103 to be in fluid communication with each other and / or with one or more elements (e.g., pipes, connectors, valves, collars, attachments, etc.). For example, the first end 101 may include an inlet 112 configured to connect to a tube (e.g., a tube connected to a patient), and the second end 103 may include an opening 105 to allow fluid communication through the first connector 102 and fluid flow from the first connector 102. The opening 105 may be located close to the second end 103 and may be configured to receive a second connector 140. The inlet 112 may be in fluid communication with the opening 105.

[0038] In some embodiments, the opening 105 is configured to receive the second connector 140 such that a portion of the second connector 140 is positioned within the body 108. The first connector 102 may include one or more valves or springs configured to control the flow of fluid through the first connector 102. For example, the first connector 102 may include one or more valves configured to prevent the flow of fluid through the first connector 102 unless pressure is applied to the valves. In some embodiments, the valves of the first connector 102 are made to allow the flow of fluid through the first connector 102 by at least partially inserting the second connector 140 into the first connector 102. The first connector 102 may be prevented from allowing flow through the first connector 102 until the second connector 140 is inserted into the first connector 102 (e.g., through the opening 105).

[0039] In some embodiments, the body 108 is sized and shaped to receive and secure the second connector 104. For example, the second connector 140 can be inserted into the body 108 through the opening 105 to connect the second connector 140 to the first connector 102. The second connector 140 can be inserted into the body 108 such that a portion of the second connector 140 (e.g., the opening 142) is in contact with or adjacent to the connecting portion 106.

[0040] In some embodiments, the second connector 140 includes a valve or plug (e.g., valve or plug 145) configured to engage with the valve of the first connector 102. For example, when the second connector 140 is inserted into and positioned within the first connector 102, the valve of the first connector 102 may contact or engage with the valve of the second connector 140, allowing the first connector 102 to communicate fluidly with the second connector 140. In some embodiments, the second connector 140 is inserted into the first connector 102 (e.g., body 108) such that the second connector 140 engages with a valve assembly which may include a spring. The valve assembly (and spring) may be biased to seal the inlet 112 to prevent fluid flow from the first connector 102, such as the first end 101. By inserting the second connector 140 into the body 108, the second connector 140 comes into contact with and presses against the valve assembly, thereby allowing fluid to flow from the inlet 112 through the connecting portion 106 to the second connector 140 located inside the body 108. By applying a compressive force to the valve assembly of the first connector 102, fluid may be allowed to flow from the inlet 112 to the second connector 140 located inside the body 108.

[0041] In some embodiments, the first connector 102 is configured to connect to the second connector 140 such that fluid flows into the first connector 102 and out of the second connector 140. For example, the first connector 102 may include an inlet (e.g., inlet 112) configured to receive fluid, and the second connector 140 may include an outlet (e.g., outlet 146) configured to allow fluid to exit the second connector 140. In some embodiments, the connection of the first connector 102 to the second connector 140 and the second configuration of the coupler assembly 100 result in fluid communication between the inlet (e.g., inlet 112) of the first connector 102 and the outlet (e.g., outlet 146) of the second connector 140.

[0042] In some embodiments, fluid can exit or flow through the first connector 102. The fluid path through the first connector 102 may have a linear fluid path to facilitate cleaning and reduce the risk of hemolysis. Optionally, the first connector 102 may include features (e.g., raised features, gripping features) located on its outer surface to allow clinicians to handle or manipulate the first connector 102 more easily. Some embodiments of the first connector 102 may provide a connector that is compatible with connectors in other parts of the fluid delivery system. The first connector 102 may be substantially cylindrical in shape.

[0043] In some embodiments, the body 108 includes one or more engaging members. The engaging members may include a groove 115 or an edge 116. The groove 115 may be circumferentially positioned around the body 108. The groove 115 may be positioned close to the second end 103. The groove 115 may be configured to receive a portion of the second connector 140 when the second connector 140 is at least partially inserted into the body 108. The groove 115 may be configured to fix (e.g., via friction) a portion of the second connector 140 to prevent the second connector 140 from separating from or being pulled out of the body 108 of the first connector 102, as discussed below. The groove 115 may be positioned between the body 108 and the distal end 109. For example, the body 108 may widen outward as the body 108 approaches the distal end 109. The groove 115 may be located in a portion of the outwardly extending body 108. The body 108 may include multiple grooves 115. The multiple grooves 115 may have different depths and / or widths, or they may all have the same depth and / or width.

[0044] In some embodiments, the body 108 includes edges 116 positioned between the grooves 115. The body 108 may include edges 116 positioned circumferentially around the body 108. The edges 116 may be positioned between the grooves 115 such that a series of circumferential edges 116 form a plurality of grooves 115. In some embodiments, the first connector 102 includes grooves 115, edges 116, or both grooves 115 and edges 116.

[0045] Referring to Figures 2 and 3, the second connector 140 may include a first end 141, a second end 143, and a body 148. The body 148 may extend from the first end 141 to the second end 143. The body 148 may include a channel 144 extending from the first end 141 to the second end 143. In some embodiments, the first end 141 includes an opening 142, and the second end 143 includes an outlet 146. The opening 142 may be in fluid communication with the outlet 146 via the channel 144. In some embodiments, the body 148 includes a flange 147 extending from the channel 144. The channel 144 may have two flanges 47, each extending away from the central axis AA and facing each other. The maximum width of the second connector 140, formed by the channel 144 and flange 147, may be smaller than the maximum diameter of the body 108 and / or the first connector 102.

[0046] The second connector 140 may include a valve or plug 145 positioned adjacent to the first end 141. The valve 145 may be configured to control the flow of fluid through the opening 142. In some embodiments, the valve 145 is positioned within the opening 142. The valve 145 may be configured to contact or engage with a valve in the first connector 102 to allow a fluid path to be formed between the first connector 102 and the second connector 140 when the second connector 140 is positioned within the first connector 102. The second connector 140 may include an outlet portion 149 positioned adjacent to the second end 143. The outlet portion 149 may include an outlet 146.

[0047] In some embodiments, when the second connector 140 is at least partially located within the first connector 102, the exit portion 149 is kept exposed. For example, when the second connector 140 is at least partially located within the body 108, the exit portion 149 may be kept outside the body 108. In some embodiments, when the second connector 140 is at least partially located within the first connector 102, the first end 141, opening 142, channel 144, and flange 147 are located within the body 108 of the first connector 102. The flange 147 may be configured to prevent excessive movement within the body 108 when the second connector 140 is located within the first connector 102.

[0048] In some embodiments, the second connector 140 includes one or more arms 150. The arms 150 may extend from the exit portion 149. For example, the arms 150 may extend away from the central axis AA. The arms 150 may be curved such that a first portion of the arm 150 adjacent to the second end 143 extends away from the central axis AA, and a second portion of the arm 150 adjacent to the first end 141 extends toward the first end 141. In some embodiments, the arms 150 are curved or angled. The arms 150 may extend from the exit portion 149 toward the first end 141. In some embodiments, the second connector 140 includes two arms 150 (Figure 2). Alternatively, the second connector 140 includes one arm 150 (Figure 4), three arms, four arms, or more than four arms. In some embodiments, the second connector 140 includes two arms 150 that are positioned opposite each other so that the second connector 140 is substantially symmetrical.

[0049] The arm 150 may extend from the exit portion 149 at angles of 180 degrees and 90 degrees. In some embodiments, the arm 150 extends from the exit portion 149 at angles from 90 to 180 degrees, such as approximately 175 degrees, approximately 170 degrees, approximately 160 degrees, approximately 150 degrees, approximately 140 degrees, approximately 130 degrees, or greater than 90 degrees. The arm 150 can extend away from the exit portion 149 and can extend toward the first end 101 so that the arm 150 extends beyond the midpoint of the body 148. In some embodiments, the arm 150 has one or more inflection points. One or more inflection points may be points along the arm 150 where the angle of the arm 150 is different or changes. For example, the arm 150 may have one inflection point such that a first portion of the arm 150 extends at a first angle, and a second portion of the arm 150 extends at a second angle different from the first angle. The arm 150 may have two inflection points, three inflection points, or more than three inflection points. In some embodiments, the arm 150 is substantially curved, resulting in many inflection points.

[0050] The arm 150 may include a proximal end 151 and a distal end 153. The arm 150 may be connected to an exit portion 149 at the proximal end 151 and may extend to the distal end 153. In some embodiments, the straight-line distance between the proximal end 153 and the distal end 153 of the arm 150 is less than the total length of the arm 150. In some embodiments, the arm 150 is configured to extend away from the body 148 and / or central axis AA adjacent to the proximal end 151, and then curve radially toward the body 148 and / or central axis AA adjacent to the distal end 153. Each arm 150 may have a thickness less than the maximum thickness of the body 148.

[0051] In some embodiments, the arm 150 is formed integrally with the exit portion 149. Alternatively, the arm 150 may be removably connected to the exit portion 149. The arm 150 may be rotatable relative to the exit portion 149 such that the arm 150 is configured to rotate about the central axis AA and / or the body 148. The arm 150 may be made of a substantially rigid yet flexible material that allows the arm 150 to deflect without breaking.

[0052] The arm 150 may be configured to flex toward and away from the central axis AA and the main body 148. For example, the arm 150 may be configured to deflect radially outward or inward. The arm 150 may be biased radially inward and may be configured to deflect radially outward in response to force or pressure.

[0053] The arm 150 may include one or more fixing members, such as a projection 152 (Figure 2) and / or a recess 156 (Figure 4), which are configured to extend from the distal end 151 of the arm 150. The projection 152 may be configured to engage with and be positioned within the groove 115 of the first connector 102 when the second connector 140 is connected to the first connector 102 (for example, at least partially positioned therein).

[0054] Referring to Figure 3, when the second connector 140 is connected to the first connector 102, the arm 150 is positioned around the body 108 such that the projection 152 is positioned within the groove 115. In practice, by at least partially inserting the second connector 140 into the first connector 102, the projection 152 engages with the groove 115 and becomes positioned within the groove 115. The position of the projection 152 within the groove 115 helps to secure the second connector 140 to the first connector 102. The engagement of the projection 152 with the groove 115 prevents the second connector 140 from separating from the first connector 102. The first connector 102 may include a plurality of grooves 115, each having a different depth, to allow for various engagement and securing configurations with the projection 152. For example, the first connector 102 may have a first groove 115 having a shallow depth and a second groove 115 having a deeper depth than the first groove. By positioning the projection 152 in the first shallow groove, the second connector 140 may be able to separate more easily from the first connector 102 compared to when the projection 152 is positioned in the second deeper groove. The depth and width of the groove 115 may determine the amount of force required to disengage the projection 152 from the groove 115.

[0055] In practice, when the user inserts the second connector 140 into the body 108 of the first connector 102, the arm 150 is deflected radially outward as it passes over the exit portion 149. The arm 150 may move towards an initial inwardly biased position as its distal end 153 approaches the groove 115. When the projection 152 is positioned within the groove 115, the arm 150 may be deflected radially outward, causing it to exert force or pressure on the body 108 and the projection 152 to exert force on the groove 115 due to the radially inward bias of the arm 150. The force exerted on the groove 115 by the projection 152 helps to fix the projection 152 within the groove 115, thereby helping to prevent the second connector 140 from separating from the first connector 102. In some embodiments, the projection 152 is positioned within the groove 115 so that the first end 141 of the second connector 140 is close to the connecting portion 106 of the first connector 102, and a fluid path is formed between the first connector 102 and the second connector 140.

[0056] Referring to Figure 4, the arm 150 may include a recess 156 configured to engage with the edge 116 of the body 108 when the second connector 140 is connected to the first connector 102. In some embodiments, the recess 156 is configured to engage with the edge 116 such that the edge 116 is positioned within the recess 156. The friction between the edge 116 and the recess 156 when the edge 116 is positioned within the recess 156 secures the arm 150 to the body 108, thereby securing the second connector 140 to the first connector 102.

[0057] In practice, when the user inserts the second connector 140 into the body 108 of the first connector 102, the arm 150 is deflected radially outward as it passes over the exit portion 149. The arm 150 may move towards an initial inwardly biased position as its distal end 153 approaches the edge 116. When the recess 156 engages with the edge 116, the arm 150 may be deflected radially outward as the arm 150 is radially biased inward, causing the arm 150 to apply force or pressure to the body 108 and the recess 156 to apply force to the edge 116. The force applied to the edge 116 by the recess 156 helps to fix the edge 116 within the recess 156, thereby helping to prevent the second connector 140 from separating from the first connector 102. In some embodiments, the edge portion 116 is positioned within the recess 156 so that the first end portion 141 of the second connector 140 is close to the connecting portion 106 of the first connector 102, and a fluid path is formed between the first connector 102 and the second connector 140.

[0058] In some embodiments, the coupler assembly 100 is configured to a second configuration. In the second configuration, the first connector 102 is separated from the second connector 140. The coupler assembly 100 can transition from the first configuration to the second configuration in response to the occurrence of a disconnection. The occurrence of a disconnection may be in response to an tensile force. For example, a tensile force (e.g., force F) can be applied to the first connector 102 by being applied directly to the first connector 102, or by being applied indirectly to the first connector 102, such as by being applied to tubing connected to the first connector 102. The tensile force can cause the first connector 102 to move axially away from the second connector 140 along the central axis AA, thereby separating the first connector 102 from the second connector 140. In some embodiments, in order to separate the first connector 102 from the second connector 140, it is necessary to deflect the arm 150 radially so that the projection 152 is no longer positioned within the groove 115. For example, in response to an extraction force, the projection 152 may slide out of the groove 115, causing the second connector 140 to no longer be fixed to the first connector 102.

[0059] In some embodiments, the projection 152 is disengaged from the groove 115 by an applied pull-out force. When the pull-out force is applied, the projection 152 disengages from the groove 115, thereby allowing the first connector 102 to separate from the second connector 140. In some embodiments, the first connector 102 separates from the second connector 140 when the force F exceeds a predetermined threshold force. For example, if the force F is less than a predetermined threshold force, the first connector 102 may not separate from the second connector 140. The predetermined threshold force prevents accidental or inadvertent separation due to small force or movement. The predetermined threshold force may be based on the flexibility and / or rigidity of the arm 150, projection 152 and / or groove 115. For example, the higher the rigidity of the arm 150, projection 152 and / or groove 115, the higher the predetermined threshold force.

[0060] In some embodiments, the first connector 102 includes grooves 115 of varying depths and / or widths to increase the frictional force between the grooves 115 and projections 152, thereby preventing accidental detachment of the first connector 102 from the second connector 140. In some embodiments, if the pulling force exceeds a predetermined threshold force, the projections 152 may not remain in the grooves 115, thereby allowing the first connector 102 to detach from the second connector 140.

[0061] In some embodiments, a predetermined threshold force is approximately 1.81 kg (4 pounds (lbs)). A predetermined threshold force may range from approximately 0.45 kg (1 lb) to approximately 3.63 kg (8 lbs), from approximately 1.36 kg (3 lbs) to approximately 3.18 kg (7 lbs), from approximately 1.81 kg (4 lbs) to approximately 2.72 kg (6 lbs), or greater than 3.63 kg (8 lbs). For example, a patient may have a needle / catheter inserted into their skin, and the needle / catheter may be connected to a first connector 102 or a second connector 140. A patient may walk away from the infusion pump or accidentally pull on a fluid line connected to the first connector 102 or the second connector 140, and if the force exceeds 1.81 kg (4 lbs), the first connector 102 may automatically release or disconnect from the second connector 140, effectively closing the fluid path between the first connector 102 and the second connector 140, as described herein.

[0062] In some embodiments, when separating the first connector 102 from the second connector 140, the user sterilizes the first connector 102 and reconnects the first connector 102 to the second connector 140. In some embodiments, the user may sterilize the first connector 102 and / or the second connector 140. By reconnecting the first connector 102 to the second connector 140, the coupler assembly 100 transitions from the second configuration to the first configuration.

[0063] The disclosures described herein include at least the following provisions:

[0064] Clause 1: A coupler having a first connector including a first end having an inlet and a second end having an opening opposite to the first end, the first connector including at least one engaging member disposed between the first end and the second end; and a second connector including a body extending from an outlet portion, the body being configured to connect the second connector to the first connector by at least partially inserting into the opening, and the outlet portion having at least one arm having a fixing member configured to engage with the engaging member to fix the first connector to the second connector. The outlet portion is exposed when the second connector is connected to the first connector. The first connector is configured to separate from the second connector in response to an outward force exceeding a predetermined threshold force.

[0065] Clause 2: The coupler according to Clause 1, wherein the first connector includes a connecting portion located at a first end and a first connector body extending from the connecting portion, the first connector body including an opening.

[0066] Clause 3: The coupler according to Clause 2, wherein the first connector body includes at least one engaging member.

[0067] Clause 4: The coupler according to Clause 1, wherein the fixing member is a projection extending from the distal end of at least one arm.

[0068] Clause 5: The coupler according to Clause 4, wherein the engaging member is a groove circumferentially positioned in the first connector, the groove being sized and shaped to receive and secure a projection of at least one arm when the second connector is connected to the first connector.

[0069] Clause 6: The coupler according to Clause 1, wherein the fixing member is a recess located at the distal end of at least one arm.

[0070] Clause 7: The coupler according to Clause 6, wherein the engaging member is a circumferentially positioned edge of the first connector, and a recess of at least one arm is sized and shaped to receive and secure the edge when the second connector is connected to the first connector.

[0071] Clause 8: The coupler according to Clause 1, wherein the pull-out force is a force applied to the first connector along the central axis of the first connector, and the central axis extends at least along the length of the first connector.

[0072] Clause 9: The coupler described in Clause 8, wherein the central axis extends through the first connector and the second connector when the first connector is connected to the second connector.

[0073] Clause 10: The coupler according to Clause 1, wherein at least one engaging member is a groove positioned circumferentially in the first connector.

[0074] Clause 11: The coupler according to Clause 1, wherein at least one engaging member is a circumferentially positioned edge of the first connector.

[0075] Clause 12: The coupler according to Clause 1, wherein the outlet portion includes an outlet, and the body of the second connector includes a channel extending from the outlet to the opening of the second connector such that the outlet and the opening of the second connector are in fluid communication.

[0076] Clause 13: The coupler according to Clause 1, wherein at least one arm includes a first portion extending away from the exit portion and a second portion extending radially inward.

[0077] Clause 14: The coupler according to Clause 1, wherein at least one arm is configured to be biased radially inward and deflected radially outward.

[0078] Clause 15: The coupler according to Clause 1, wherein the fixing member detaches from the engaging member in response to an uplift force exceeding a predetermined threshold force.

[0079] Clause 16: The coupler according to Clause 1, wherein the first connector is configured to maintain a connection to the second connector if the pull-out force does not exceed a predetermined threshold force.

[0080] Clause 17: The coupler according to Clause 1, wherein the coupler has a first configuration, in the first configuration, a first connector is connected to a second connector such that a fluid path is formed.

[0081] Clause 18: The coupler according to Clause 1, wherein the coupler has a second configuration, in which the first connector is separated from the second connector to prevent the formation of a fluid path.

[0082] Clause 19: A coupler comprising a first connector including a first end having a connecting portion having an inlet, a second end opposite to the first end having an opening, and a first connector body extending from the connecting portion to the second end, the first connector comprising at least one engaging member disposed on the first connector body; and a second connector including an outlet portion having an outlet and a body extending from the outlet portion, the body comprising at least one arm having a fixing member configured to be at least partially inserted into the opening to connect the second connector to the first connector, the outlet portion having a fixing member configured to engage with the engaging member to fix the first connector to the second connector, the at least one arm being configured to be biased radially inward and deflected radially outward. When the second connector is connected to the first connector, the outlet portion is exposed and a fluid path is formed from the inlet of the first connector to the outlet of the second connector. The first connector is configured to separate from the second connector in response to an extraction force exceeding a predetermined threshold force.

[0083] Clause 20: A coupler having a first connector which is substantially cylindrical, comprising a first end having a connecting portion having an inlet, a second end opposite to the first end having an opening, and a first connector body extending from the connecting portion to the second end, comprising at least one engaging member circumferentially positioned on the first connector body between the first end and the second end; and a second connector which comprises an outlet portion having an outlet, and a body extending from the outlet portion, wherein the body comprises a channel for fluid communication with the outlet, and the body is configured to be at least partially inserted into the opening to connect the second connector to the first connector, and the outlet portion comprises at least one arm which comprises a fixing member configured to engage with the engaging member to fix the first connector to the second connector, the at least one arm comprising a first portion extending away from the outlet portion and a second portion extending radially inward, and the at least one arm which is configured to be biased radially inward and deflected radially outward. When the second connector is connected to the first connector, the outlet portion is exposed, and a fluid path is formed from the inlet of the first connector to the outlet of the second connector. In response to a pull-out force exceeding a predetermined threshold force, the fixing member is configured to disengage from the engaging member, and the first connector is configured to separate from the second connector.

[0084] This disclosure is provided to enable any person skilled in the art to practice the various embodiments described herein. While this disclosure provides various examples of the subject art, the subject art is not limited to these examples. Various modifications to these embodiments will be readily apparent to a person skilled in the art, and the comprehensive principles defined herein may be applicable to other embodiments.

[0085] References to singular elements are not intended to mean "one and only one" unless explicitly stated so, but rather "one or more." Unless explicitly stated otherwise, the term "several" refers to one or more. Masculine pronouns (e.g., his) include feminine and neuter pronouns (e.g., her and its), and vice versa. Headings and subheadings, where present, are for convenience only and do not limit the invention.

[0086] The term “exemplary” is used herein to mean “serving as an example or illustration.” No embodiment or design described herein as “exemplary” is necessarily considered preferable or advantageous to any other embodiment or design. In one embodiment, various alternative configurations and operations described herein may be considered at least equivalent.

[0087] The terms "aspects" and similar phrases do not imply that such aspects are essential to the subject art, nor that such aspects are compatible with all configurations of the subject art. Disclosure relating to a particular aspect may be compatible with all configurations or one or more configurations. An aspect may provide one or more examples. Terms such as "aspects" may refer to one or more aspects, and vice versa. The terms such as "examples" and similar phrases do not imply that such examples are essential to the subject art, nor that such examples are compatible with all configurations of the subject art. Disclosure relating to a particular example may be compatible with all examples, or one or more examples. An example may provide one or more examples. Terms such as "examples" may refer to one or more examples, and vice versa. The terms such as "configuration" and similar phrases do not imply that such configurations are essential to the subject art, nor that such configurations are compatible with all configurations of the subject art. Disclosure relating to a particular configuration may be compatible with all configurations, or one or more configurations. A particular configuration may provide one or more examples. Terms such as "composition" may refer to one or more compositions, and vice versa.

[0088] In one embodiment, unless otherwise stated, all measurements, values, ratings, locations, sizes, dimensions, and other specifications specified herein, including those in the subsequent claims, are approximate and not exact. In one embodiment, they are intended to have a reasonable range that is consistent with the function to which they relate and with what is customary in the art to which they relate.

[0089] In one embodiment, the term "connected" may refer to being directly connected. In another embodiment, the term "connected" may refer to being indirectly connected.

[0090] When used in this disclosure, terms such as “up,” “down,” “front,” and “rear” should be understood to refer to an arbitrary reference frame, rather than a normal gravity-based reference frame. Therefore, the top, bottom, front, and rear surfaces may extend upward, downward, diagonally, or horizontally in a gravity-based reference frame.

[0091] Various matters may be arranged in different ways (for example, in different orders or divided in different ways) without departing from the scope of the subject art. All structural and functional equivalents of elements in various forms described throughout this disclosure, which are known to or will be known to those skilled in the art, are expressly incorporated herein by reference and are intended to be included in the claims. Furthermore, nothing disclosed herein is intended to be made available to the general public, whether such disclosure is expressly stated in the claims or not. No element of any claim should be construed under 112, Section 6 of the U.S. Patent Act unless it is expressly described using the phrase “means for” or, in the case of a method claim, the phrase “steps for.” Furthermore, with respect to the use of terms such as “includes,” “have,” etc., such terms are intended to be as comprehensive as “comprise,” as the term “comprise” is interpreted when used as a transitional term in a claim.

[0092] The title, background art, summary of the invention, brief description of the drawings, and abstract of this disclosure are incorporated herein by reference and are provided as exemplary examples of the disclosure, not as restrictive descriptions. This disclosure is filed with the understanding that they are not used to limit the scope or meaning of the claims. In addition, it can be seen that in the modes for carrying out the invention, the descriptions provide exemplary examples and various features are grouped together in various embodiments for the purpose of simplifying the disclosure. This method of disclosure should not be interpreted as reflecting an intention that the claimed subject matter requires more features than are explicitly described in each claim. Rather, as reflected in the following claims, the subject matter of the invention consists of fewer features than all features of a single disclosed configuration or operation. The following claims stand alone as claimed subject matter and are incorporated herein by reference.

[0093] The claims are not intended to be limited to the embodiments described herein, but rather to be given the full scope consistent with the verbatimized claims and to encompass all legal equivalents. Nevertheless, no claim is intended to encompass, nor should they be construed as, subject matter that does not meet the requirements of Sections 101, 102, or 103 of the U.S. Patent Act.

Claims

1. A first connector comprising a first end having an inlet and a second end having an opening opposite to the first end, the first connector comprising at least one engaging member disposed between the first end and the second end, A second connector comprising a body extending from an outlet portion, wherein the body is configured to be at least partially inserted into the opening to connect the second connector to the first connector, the outlet portion comprising at least one arm, the at least one arm having a fixing member configured to engage with the engaging member to fix the first connector to the second connector, and the outlet portion being exposed when the second connector is connected to the first connector, and A coupler having, A coupler in which the first connector is configured to separate from the second connector in response to an extraction force exceeding a predetermined threshold force.

2. The coupler according to claim 1, wherein the first connector includes a connecting portion disposed at the first end and a first connector body extending from the connecting portion, the first connector body including the opening.

3. The coupler according to claim 2, wherein the first connector body includes the at least one engaging member.

4. The coupler according to claim 1, wherein the fixing member is a projection extending from the distal end of at least one arm.

5. The coupler according to claim 4, wherein the engaging member is a groove arranged circumferentially on the first connector, and the groove is sized and shaped to receive and secure the projection of at least one arm when the second connector is connected to the first connector.

6. The coupler according to claim 1, wherein the fixing member is a recess located at the distal end of at least one arm.

7. The coupler according to claim 6, wherein the engaging member is an edge portion arranged circumferentially on the first connector, and the recess of the at least one arm is sized and shaped to receive and fix the edge portion when the second connector is connected to the first connector.

8. The coupler according to claim 1, wherein the pulling force is a force applied to the first connector along the central axis of the first connector, and the central axis extends at least along the length of the first connector.

9. The coupler according to claim 8, wherein the central axis extends through the first connector and the second connector when the first connector is connected to the second connector.

10. The coupler according to claim 1, wherein the at least one engaging member is a groove arranged circumferentially on the first connector.

11. The coupler according to claim 1, wherein the at least one engaging member is a circumferentially arranged edge on the first connector.

12. The coupler according to claim 1, wherein the outlet portion includes an outlet, and the body of the second connector includes a channel extending from the outlet to the second connector opening, thereby enabling fluid communication between the outlet and the second connector opening.

13. The coupler according to claim 1, wherein the at least one arm includes a first portion extending away from the exit portion and a second portion extending radially inward.

14. The coupler according to claim 1, wherein at least one arm is biased radially inward and configured to deflect radially outward.

15. The coupler according to claim 1, wherein the fixing member detaches from the engaging member in response to the pulling force exceeding a predetermined threshold force.

16. The coupler according to claim 1, wherein the first connector is configured to remain connected to the second connector when the pulling force does not exceed a predetermined threshold force.

17. The coupler according to claim 1, wherein the coupler has a first configuration, in the first configuration, the first connector is connected to the second connector such that a fluid path is formed.

18. The coupler according to claim 1, wherein the coupler has a second configuration, in the second configuration, the first connector is separated from the second connector to prevent the formation of a fluid path.

19. A first connector comprising a first end having a connecting portion with an inlet, a second end having an opening on the opposite side of the first end, and a first connector body extending from the connecting portion to the second end, wherein the first connector includes at least one engaging member disposed on the first connector body, and A second connector comprising an outlet portion having an outlet and a body extending from the outlet portion, wherein the body is configured to be at least partially inserted into the opening to connect the second connector to the first connector, the outlet portion includes at least one arm, the at least one arm having a fixing member configured to engage with the engaging member to fix the first connector to the second connector, and the at least one arm is configured to be biased radially inward and deflected radially outward. A coupler having, When the second connector is connected to the first connector, the outlet portion is exposed, and a fluid path is formed from the inlet of the first connector to the outlet of the second connector. A coupler in which the first connector is configured to separate from the second connector in response to an extraction force exceeding a predetermined threshold force.

20. A substantially cylindrical first connector comprising a first end having a connecting portion with an inlet, a second end having an opening on the opposite side of the first end, and a first connector body extending from the connecting portion to the second end, wherein the first connector comprises at least one engaging member circumferentially disposed on the first connector body between the first end and the second end, and A second connector comprising an outlet portion having an outlet and a body extending from the outlet portion, wherein the body includes a channel for fluid communication with the outlet, the body is configured to be at least partially inserted into the opening to connect the second connector to the first connector, the outlet portion includes at least one arm having a fixing member configured to engage with the engaging member to fix the first connector to the second connector, the at least one arm includes a first portion extending away from the outlet portion and a second portion extending radially inward, the at least one arm is biased radially inward and configured to deflect radially outward. A coupler having, When the second connector is connected to the first connector, the outlet portion is exposed, and a fluid path is formed from the inlet of the first connector to the outlet of the second connector. A coupler configured such that, in response to an outward force exceeding a predetermined threshold force, the fixing member detaches from the engaging member, and the first connector detaches from the second connector.

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