Screw-in connector assembly

Abstract

The coupler includes a first connector having a mating portion having a first opening and a first threaded member disposed within the mating portion having a first channel. The first threaded member is rotatable relative to the mating portion. The coupler includes a second connector having a second threaded member having a second channel and a connecting portion having a second opening and at least partially disposed within the second threaded member. The second threaded member is configured such that connection to the first threaded member is made such that rotation of the second threaded member causes rotation of the first threaded member, resulting in alignment of the first channel, the first opening, the second channel, and the second opening to form a fluid passage. The first connector is configured to be disconnected from the second connector in response to a force exceeding a threshold force.

Description

Technical Field

[0001] This application claims the benefit of priority under 35 U.S.C. § 119 to U.S. Provisional Patent Application No. 63 / 454,884, filed on March 27, 2023, entitled "TORSIONAL CONNECTOR COUPLING ASSEMBLY", the entire content of which is incorporated herein by reference.

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

Background Art

[0003] Medical treatment often involves the infusion of a medical fluid (e.g., saline or a drug) to a patient using an intravenous (IV) catheter, which is generally connected to a fluid source such as an IV bag through a flexible tubing and connector configuration commonly referred to as an "IV set". Often, the tubing or catheter is connected or secured to each other to enable fluid communication between various portions of the tubing or catheter.

[0004] In some applications, such tubing or catheter may be dislodged by being improperly secured and / or may be dislodged when the coupling is subjected to forces greater than those for which the coupling was designed to withstand.

Summary of the Invention

Means for Solving the Problems

[0005] One or more embodiments of the present disclosure are directed toward a coupler, comprising: a first connector including a mating portion having a first opening; and a first threaded member disposed within the mating portion and having a first channel, wherein the first threaded member is rotatable relative to the mating portion; and a second connector including a second threaded member having a second channel; and a connecting portion having a second opening and at least partially disposed within the second threaded member, wherein the second threaded member is connected to the first threaded member to connect the first connector to the second connector. When the first connector is connected to the second connector, rotation of the second threaded member causes rotation of the first threaded member, resulting in alignment and fluid communication between the first channel, the first opening, the second channel, and the second opening to form a fluid passage extending from the first connector to the second connector. The first connector is configured to disconnect from the second connector when the pulling force exceeds a predetermined threshold force.

[0006] In some embodiments, the coupler further includes a sleeve connected to a second connector and at least partially surrounding a threaded member, the sleeve being rotatable relative to the connecting portion. The sleeve includes a tab configured to be positioned within a recess of the mating portion when a fluid passage is formed, thereby locking the sleeve in an unlocked position. The mating portion includes a ring having a recess configured to receive the tab and lock the sleeve in an unlocked position. The tab has a natural state and a compressed state, the tab is biased to be in the natural state, and as a result of locking the tab within the recess, the tab transitions from the natural state to the compressed state.

[0007] In some embodiments, the sleeve is connected to the second threaded member such that rotation of the sleeve causes rotation of the second threaded member. The sleeve includes a groove configured to receive the ring of the mating portion when the first connector is connected to the second connector.

[0008] In some embodiments, the pull-out force is a force applied to the first connector along its central axis, which extends at least along the length of the first connector. When the first connector is connected to the second connector, the central axis extends through both the first and second connectors.

[0009] In some embodiments, the first and second threaded members each have a locked position and an unlocked position, and when the first connector is connected to the second connector, the second threaded member is in the unlocked position, causing the first threaded member to take the unlocked position. The first and second threaded members are each biased to take the locked position.

[0010] In some embodiments, the first threaded member is biased so as not to align the first channel with the first opening.

[0011] In some embodiments, the second threaded member is biased so as not to align the second channel with the second opening.

[0012] In some embodiments, the first threaded member includes a key member that extends at least partially through the mating portion, and the second threaded keyhole is sized and shaped to receive the key member and secure the key member within the keyhole.

[0013] In some embodiments, the second connector includes an exit portion connected to the coupling portion, the exit portion having a channel that extends at least partially into the coupling portion.

[0014] In some embodiments, the mating portion includes a first internal space, and the connecting portion includes a second internal space, the first internal space being in fluid communication with the second internal space when the first connector is connected to the second connector to form a fluid passage.

[0015] In some embodiments, the first connector is configured to remain connected to the second connector when the pulling force does not exceed a predetermined threshold force.

[0016] In some embodiments, the coupler has a first configuration, in which the first connector is connected to the second connector such that the mating portion is at least partially located within the second connector and the fluid passage is blocked.

[0017] In some embodiments, the coupler has a second configuration, in which the first connector is connected to the second connector such that the mating portion is at least partially located within the second connector and a fluid passage is formed.

[0018] In some embodiments, the coupler has a third configuration in which the first connector is disconnected from the second connector and the fluid passage is blocked.

[0019] In some embodiments, a first connector is connected to a first portion of the pipe at a first end, and a second connector is connected to a second portion of the pipe at an outlet.

[0020] One or more embodiments of the present disclosure include a first connector comprising: a first end; a mating portion disposed adjacent to a second end opposite to the first end and having a first opening and a first internal space; and a first screw-in member disposed within the first internal space, wherein the first screw-in member has a first channel and a key member extending through the mating portion; the first screw-in member is rotatable relative to the mating portion; the first screw-in member has a locked position and an unlocked position; and the first screw-in member is biased to assume the locked position; and a second connector comprising: a second screw-in member having a second channel and a keyhole; an outflow portion having an outlet; and a connecting portion having a second internal space and disposed between the second screw-in member and the outflow portion. The coupler includes a second connector having a second opening and being at least partially disposed within a second threaded member, the keyhole being configured to receive the keyed member and connect the first connector to the second connector, the second threaded member having a locked position and an unlocked position, and the second threaded member being biased to assume the locked position, wherein when the first connector is connected to the second connector, rotation of the second threaded member causes rotation of the first threaded member, resulting in alignment and fluid communication between the first channel, the first opening, the second channel, and the second opening so as to form a fluid passage between the first internal space and the second internal space extending from the first connector to the second connector. The first connector is configured to disconnect from the second connector in response to a pull-out force exceeding a predetermined threshold force.

[0021] One or more embodiments of the present disclosure include a first connector comprising: an inlet portion disposed adjacent to a first end and having an inlet; a mating portion disposed adjacent to a second end opposite to the first end and having a first opening and a first internal space; and a first screw-in member disposed within the first internal space, wherein the first screw-in member has a first channel and a key member extending through the mating portion, the first screw-in member is rotatable relative to the mating portion, the first screw-in member has a locked position and an unlocked position, and the first screw-in member is biased to assume the locked position; and a second connector comprising: a second screw-in member having a second channel and a keyhole; an outlet portion having an outlet; and a connecting portion having a second internal space and disposed between the second screw-in member and the outlet portion. A coupler comprising: a second connector, wherein the connecting portion has a second opening and is at least partially disposed within a second screw-in member, the keyhole is configured to receive the key member and connect the first connector to the second connector, the second screw-in member has a locked position and an unlocked position, and the second screw-in member is biased to assume the locked position; and a sleeve connected to and partially surrounding the second screw-in member, the sleeve being rotatable relative to the connecting portion such that rotation of the sleeve causes rotation of the second screw-in member from the locked position to the unlocked position, and the sleeve including a groove configured to receive a ring of the mating portion and secure the sleeve to the mating portion when the first connector is connected to the second connector. When the first connector is connected to the second connector, the rotation of the sleeve causes the rotation of the second threaded member, and the rotation of the second threaded member causes the rotation of the first threaded member, resulting in alignment and fluid communication between the first channel, the first opening, the second channel, and the second opening, so as to form a fluid passage between the first internal space and the second internal space, extending from the first connector to the second connector. The first connector is configured to disconnect from the second connector when the pull-out force exceeds a predetermined threshold force.

[0022] While various configurations of the subject technology will be readily apparent to those skilled in the art from this disclosure, it is understood that the various configurations of the subject technology are shown and described by way of example. As will be recognized, other different configurations of the subject technology are possible without departing from any of the scope of the subject technology, and some of its details are modifiable in various other respects. Accordingly, the summary, the drawings, and the detailed description should be regarded as being essentially exemplary and not restrictive.

[0023] The accompanying drawings, which are incorporated herein and constitute a part hereof, are introduced for the purpose of providing a further understanding and illustrate the disclosed embodiments and serve to explain the principles of the disclosed embodiments together with this description.

Brief Description of the Drawings

[0024] [Figure 1] It is a system diagram showing a coupler assembly in use according to various aspects of the present disclosure. [Figure 2] It is a side perspective view of the coupler assembly of FIG. 1 in a first configuration according to various aspects of the present disclosure. [Figure 3A] It is a side perspective view of the coupler assembly of FIG. 1 in which the first connector is disconnected from the second connector according to various aspects of the present disclosure. [Figure 3B] It is a side cross-sectional view of the coupler assembly of FIG. 3A according to various aspects of the present disclosure. [Figure 4] It is a side perspective view of the coupler assembly of FIG. 1 in which the first connector is disconnected from the second connector according to various aspects of the present disclosure. [Figure 5] It is a side cross-sectional view of the coupler assembly of FIG. 2 according to various aspects of the present disclosure. [Figure 6A] It is a side perspective view of the coupler assembly of FIG. 1 in a second configuration according to various aspects of the present disclosure. [Figure 6B] It is a side cross-sectional view of the coupler assembly of FIG. 6A according to various aspects of the present disclosure. [Figure 6C]This is an enlarged side cross-sectional view of the coupler assembly shown in Figure 6A, according to various aspects of this disclosure. [Figure 7] This is a side cross-sectional view of the coupler assembly shown in Figure 1, which is in a third configuration according to various aspects of this disclosure. [Modes for carrying out the invention]

[0025] 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, a second configuration, and a third configuration. In the first configuration, the first connector is connected to the second connector, and the fluid passage is blocked, preventing the flow of fluid from the first connector to the second connector. In the second configuration, the first connector is connected to the second connector, and a fluid passage is formed, allowing the flow of fluid from the first connector to the second connector. In the third configuration, the first connector is disconnected from the second connector.

[0026] The 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 fluid to flow from the first portion of the pipe to the second portion of the pipe. For example, the first connector may be connected to the second connector so as to form a fluid passage through the first and second connectors, allowing fluid to flow from the first portion of the pipe through the first and second connectors to the second portion of the pipe. The fluid passage may allow fluid to flow from the second portion of the pipe to the first portion of the pipe through the second and first connectors.

[0027] 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 may flow from the second connector to the first connector but not from the first connector to the second. In some embodiments, when the first connector is disconnected from the second connector, the fluid flow from the second connector to the first connector is stopped, thereby preventing leakage when the first connector is disconnected from the second connector. In some embodiments, when the first connector is disconnected from the second connector, the first connector is sterilized (e.g., by a sterile cloth or sterilization device) 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 be disconnected based on a force exceeding a predetermined threshold force. If a force exceeding a predetermined threshold force, such as a pull-out force, is applied to the first connector, the first connector may be disconnected from the second connector. The pull-out force may be a force that occurs along the longitudinal axis of the first connector. In some embodiments, the pull-out force is generated by strongly pulling or pulling a first portion of the tubing connected to the first connector. Alternatively, the pull-out force applied to the first connector may be generated by strongly pulling or pulling the second connector and / or a second portion of the tubing connected to the second connector.

[0028] In some embodiments, the first connector is configured to reconnect to the second connector when the first connector is disconnected from the second connector. For example, the first connector may be configured to allow reconnection to the second connector after a disconnection event (e.g., due to a disconnection event) when the first connector is disconnected from the second connector.

[0029] The detailed descriptions below are intended to describe various configurations of the subject art and not to represent the only configuration in which the subject art may be implemented. The detailed descriptions include specific details for the purpose of providing a complete understanding of the subject art. However, it will be apparent to those skilled in the art that the subject art may be implemented without these specific details. In some cases, well-known structures and components are shown in block diagrams to avoid ambiguity of the concepts of the subject art. For ease of understanding, similar components are denoted by the same element reference numeral. Reference numerals may be accompanied by subscripts to indicate specific examples of common elements, and the same reference numeral without a subscript is used generically.

[0030] The following description is directed toward connecting medical connectors for administering medical fluids using the disclosed couplers, but it should be understood that this description is merely an example of use and does not limit the scope of the claims. Various embodiments of the disclosed couplers may be used in any application where it is desirable to ensure the connection of various pipes and connectors.

[0031] The disclosed coupler assembly overcomes several challenges found with some conventional couplers. One challenge with some conventional couplers is that they may not be properly secured. Furthermore, some conventional couplers may be designed to release or detach in response to relatively small pull-out forces during use. For example, some conventional couplers may release in response to pull-out forces when a patient turns over in bed, when a patient presses the tube or line against the bed rail, when a patient is moved to another bed, when a pediatric patient tampers with it, and / or when an adult patient with impaired orientation pulls out their own line. In fact, at the 2017 annual meeting of the Association for Vascular Access (AVA), it was reported that rupture occurred in 10% of 1,000 patients who had peripheral IV catheters inserted, which translates to approximately 33 million ruptures per year in the United States alone. The use of certain conventional couplers is undesirable because accidental or unintentional breakage of tubing, catheters, or connectors can interrupt the administration of medical fluids.

[0032] Accordingly, it is advantageous to provide couplers and coupler / connector assemblies as described herein that enable improved fixation of connectors or fasteners. The couplers and coupler / connector assemblies disclosed herein are constructed as described herein to enable secure retention of a first connector while allowing disconnection after a disconnection event.

[0033] Figure 1 is a system diagram showing a coupler assembly in use according to various embodiments of this disclosure. Figure 2 is a side perspective view of the coupler assembly of Figure 1 in a first configuration according to various embodiments of this disclosure. Figure 3A is a side perspective view of the coupler assembly of Figure 1 with the first connector disconnected from the second connector, according to various embodiments of this disclosure. Figure 3B is a side cross-sectional view of the coupler assembly of Figure 3A, according to various embodiments of this disclosure. Figure 4 is a side perspective view of the coupler assembly of Figure 1 with the first connector disconnected from the second connector, according to various embodiments of this disclosure.

[0034] Referring to Figures 1 to 4, the coupler assembly 100 allows fluid, such as medical fluid, to flow from a fluid source 500 to a patient end 600 by fluidly connecting one portion of a pipe or line to another portion of the pipe or line in a releasable manner. 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 shown, a portion of the pipe may be terminated using connectors / valves such as the first connector 102 and / or the second connector 140. In some embodiments, fluid from the fluid source 500 flows through the coupler assembly 100 to the patient end 600. A cannula or needle may be inserted into the patient at the patient end 600, allowing medical fluid to flow from the fluid source 500 through the coupler assembly 100 into the patient at the patient end 600. In some embodiments, the flow from the fluid source 500 to the patient end 600 is interrupted or blocked by disconnecting the first connector 102 from the second connector 140.

[0035] 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 series along the central axis AA. The first connector 102 and / or the second connector 140 may allow connection and / or disconnection of pipe material to enable 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.

[0036] The coupler assembly 100 may have a first configuration (Figure 2), a second configuration (Figure 6A), and a third configuration (Figure 7). In the first configuration, the first connector 102 is connected to the second connector 140, interrupting the fluid flow from the first connector 102 to the second connector 140. In the second configuration, the first connector 102 is connected to the second connector 140, forming a fluid passage between the first connector 102 and the second connector 140 to allow 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 engagement of the sleeve of the second connector 140. In some embodiments, the coupler assembly 100 transitions from the second configuration to the third configuration in response to a disconnection event. When a pulling force is applied to the first connector 102, causing axial movement of the first connector 102 relative to the second connector 140, breakage may even occur. In some embodiments, when the pulling force applied to the first connector 102 exceeds a predetermined threshold force, axial movement of the first connector 102 relative to the second connector 140 occurs.

[0037] In some embodiments, the first connector 102 is connected to a first portion of a pipe so that the first portion of the pipe can be connected to and / or disconnected from the second connector 140. 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 the second connector 140. For example, the second end 103 of the first connector 102 may be configured to connect to the first end 141 of the second connector 140. In some embodiments, a portion of the pipe can be connected to or engaged with the first end 101 of the first connector 102. The first connector 102 may be in fluid communication with the pipe via the first end 101 so that fluid can pass through the first connector 102.

[0038] In some embodiments, the first end 101 may have a flat surface so that a clinician can easily clean and disinfect the first end 101. The first end 101 may be fluidly connected to 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. 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 fluidly communicate with one or more elements (e.g., pipes, connectors, valves, collars, fittings, etc.). For example, the first end 101 may be connected to a tube, and the second end 103 may include one or more openings 139 to allow fluid communication through the first connector 102 and fluid flow out of the first connector 102. The openings 139 may be configured to communicate with an opening (e.g., opening 156) of the second connector 140 so that fluid can flow from the first connector 102 to the second connector 140.

[0039] 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 110) configured to receive fluid, and the second connector 140 may include an outlet (e.g., outlet 170) 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 results in the coupler assembly 100 being a second configuration, with the inlet (e.g., inlet 110) of the first connector 102 being in fluid communication with the outlet (e.g., outlet 170) of the second connector 140.

[0040] In some embodiments, fluid can exit from or flow through the first connector 102 through a second end 103 located opposite the first end 101. The fluid passage through the first connector 102 may have a linear fluid passage to facilitate flushing 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 conforms to connectors in other parts of the fluid delivery system. The first connector 102 may be substantially cylindrical in shape.

[0041] In some embodiments, the first connector 102 includes an inlet portion 120 disposed adjacent to the first end 101 and a mating portion 130 disposed adjacent to the second end 103. The inlet portion 120 may be configured to connect to the mating portion 130. In some embodiments, the inlet portion 120 and the mating portion 130 form a single structure that forms the first connector 102. The inlet portion 120 may be configured to connect to a portion of a pipe so that the first connector 102 can communicate fluidly with this portion of the pipe. For example, the inlet portion 120 may include an inlet 110 configured to allow fluid to enter the inlet portion 120. The inlet portion 120 may also include a channel 113 for allowing fluid flow within the inlet portion 120. The channel 113 is disposed within the inlet portion 120 and may extend from the first end 101 to the body 116 of the inlet portion 120.

[0042] In some embodiments, the mating portion 130 is located on the opposite side of the entrance portion 120 and is configured to connect to the second connector 140 to secure the first connector 102 to the second connector 140. For example, the mating portion 130 may include a connecting ring 132, which is received by or disposed within a groove (e.g., groove 159) of the second connector 140, as described below, to secure and connect the first connector 102 to the second connector 140. The ring 132 may be located close to the second end 103 on the mating portion 130. In some embodiments, the ring 132 is received by and engages with a corresponding groove (e.g., groove 159) of the second connector 140 to secure the first connector 102 to the second connector 140.

[0043] Referring to Figures 2 to 3B, the inlet portion 120 may be connected to a fitting portion 130 between the first end 101 and the second end 103. The inlet portion 120 may be located close to the first end 101 and may include a channel 113 and an internal space 117. The channel 113 may lead into the internal space 117. For example, the channel 113 may be in fluid communication with the internal space 117. In some embodiments, a portion of the tube is connected to the inlet portion 120 such that this portion of the tube is in fluid communication with the channel 113. As a result of the portion of the tube being in fluid communication with the channel 113, this portion of the tube is also in fluid communication with the internal space 117.

[0044] In some embodiments, the inlet portion 120 includes a body 116. The body 116 may include an internal space 122 which may be in fluid communication with the channel 113. The channel 113 may have a diameter smaller than the inner diameter of the body 116. In some embodiments, the volume of the channel 113 is smaller than the volume of the internal space 122 of the body 116. The channel 113 may be in fluid communication with the internal space 122 of the body 116 such that the body 116 (e.g., internal space 117) is configured to hold a larger volume of fluid than the channel 113. In some embodiments, the internal space 122 is in fluid communication with the internal space 135 of the fitting portion 130.

[0045] The fitting portion 130 may be located close to the second end 103 and may include one or more openings 139, a channel 137, an internal space 135, and a threaded member 136. The internal space 122 of the inlet portion 120 may be in fluid communication with the internal space 135 of the fitting portion 130. In some embodiments, fluid flows into the inlet 110, through the channel 113 into the internal space 122, and into the internal space 135. The openings 139 may be configured to allow fluid communication with the internal space 135. For example, the openings 139 may be in fluid communication with the internal space 135, allowing fluid to flow from the internal space 135 through the openings 139.

[0046] The threaded member 136 may be disposed within the internal space 135. The threaded member 136 may extend from within the internal space 135. For example, the threaded member 136 may extend only as far as the length of the fitting portion 130. In some embodiments, the threaded member 136 has a spring-like structure. For example, the threaded member 136 may be biased to assume a locked position. The threaded member 136 may move from the locked position to an unlocked position in response to rotational force. Since the threaded member 136 is biased to assume a locked position, removing the rotational force results in the threaded member 136 returning to the locked position.

[0047] In the locked position, the channel 127 of the threaded member 136 (see Figure 6B) may not be aligned with or misaligned with the opening 139 (for example, not on the same line). When the threaded member 136 is in the locked position, fluid communication between the internal space 135 and the opening 139 may be blocked because the channel 127 is not aligned with or misaligned with the opening 139. The threaded member 136 may move to the unlocked position, thereby aligning the channel 127 with the opening 139 and enabling fluid communication from the internal space 135 and the opening 139. The threaded member 136 may move from the locked position to the unlocked position by rotating the threaded member 136 relative to the fitting portion 130 and the inlet portion 120. For example, the threaded member 136 may be disposed within the internal space 135 of the fitting portion 130 and may be configured to rotate relative to the fitting portion 130 to align the channel 127 with the opening 139.

[0048] In some embodiments, the threaded member 136 includes a key member 138. The key member 138 may extend from the threaded member 136 or be disposed within a channel 137 of the mating portion 130. The key member 138 may extend from the first connector 102 beyond the second end 103. In some embodiments, the key member 138 protrudes from the first connector 102. Disposing of the key member 138 within the channel 137 may help to secure the threaded member 136 within the internal space 135 of the mating portion 130. In some embodiments, the key member 138 is configured to be received by a portion of the second connector 140, and the rotation of this portion of the second connector 140 results in the rotation of the key member 138 and the threaded member 136 relative to the mating portion 130 and the entrance portion 120. As a result of the rotation of the threaded member 136, the channel 127 may align with the opening 139. The key member 138 may have a specific shape, and a part of the second connector 140 that receives the key member 138 may have a corresponding shape to reliably receive the key member 138.

[0049] Continuing to refer to Figures 2 to 3B, the mating portion 130 may include a ring 134. The ring 134 may be disposed along the outer circumference or periphery of the mating portion 130. In some embodiments, the ring 134 is disposed between the first end 101 and the second end 103. The ring 134 may be disposed at the junction of the entrance portion 120 and the mating portion 130. The ring 134 may include one or more recesses 133 configured to receive a portion of the second connector 140 (e.g., a tab 152). The recesses 133 may be configured to receive and secure a portion of the second connector 140 (e.g., a tab 152) to secure the first connector 102 to the second connector 140 and to maintain the screw-in member 136 in the unlocked position, as will be described in detail below.

[0050] The first connector 102 may be configured to connect to the second connector 140. The second connector 140 may include a screw-in member 142, a sleeve 150, a connecting portion 155, and an outlet portion 160. The connecting portion 155 may be configured to connect to the outlet portion 160. In some embodiments, the connecting portion 155 and the outlet portion 160 form a single structure, thereby forming the second connector 140.

[0051] In some embodiments, the second connector 140 is connected to a second portion of a pipe so that the second portion of the pipe can be connected to and / or disconnected from the first connector 102. The second connector 140 may include a first end 141 and a second end 143. The first end 141 may be configured to connect to the first connector 102, and the second end 143 may be connected to a pipe (e.g., a second portion of the pipe). In some embodiments, a portion of the pipe can be connected to or engaged with the second end 143 of the second connector 140. The second connector 140 may be in fluid communication with the pipe via the second end 143 so that fluid can pass through the second connector 140. In some embodiments, the first end 141 may have a flat surface so that a clinician can easily clean and disinfect the first end 141. The first end 141 may be in fluid communication with the second end 143. The first end 141 and the second end 143 may be arranged along the longitudinal length of the second connector 140. For example, the first end 141 and the second end 143 may be arranged along the central axis AA. The first end 141 and / or the second end 143 may include openings to allow the first end 141 and / or the second end 143 to be in fluid communication with one or more elements (e.g., pipes, connectors, valves, collars, fittings, etc.).

[0052] In some embodiments, fluid can exit from or flow through the second connector 140 via a second end 143 located opposite the first end 141. The fluid passage through the second connector 140 may have a linear fluid passage to facilitate flushing and reduce the risk of hemolysis. Optionally, the second connector 140 may include features (e.g., raised features, gripping features) located on its outer surface to allow clinicians to handle or manipulate the second connector 140 more easily. Some embodiments of the second connector 140 may provide a connector that conforms to connectors in other parts of the fluid delivery system. The second connector 140 may be substantially cylindrical in shape.

[0053] In some embodiments, the second connector 140 includes a connecting portion 155 disposed adjacent to the first end 141 and an outflow portion 160 disposed adjacent to the second end 143. The outflow portion 160 may be connected to a portion of a pipe, allowing the second connector 140 to communicate fluid with this portion of the pipe and, through the portion of the pipe, with the patient. For example, the outflow portion 160 may include a channel 164 for allowing fluid flow within the outflow portion 160. The channel 164 is disposed within the outflow portion 160 and may extend to the length of the outflow portion 160. In some embodiments, the channel 164 extends into the connecting portion 155. The channel 164 may include an outlet 170. The outlet 170 may be located at the distal end of the channel 164 and may be located adjacent to the second end 143.

[0054] In some embodiments, the connecting portion 155 is located adjacent to the first end 141 on the opposite side of the outflow portion 160. The connecting portion 155 may be located adjacent to the first connector 102 (e.g., the mating portion 130) when the first connector 102 is connected to the second connector 140. For example, the connecting portion 155 may be configured to be located adjacent to a portion of the first connector 102 when the first connector 102 is connected to the second connector 140, as described below. The connecting portion 155 may include an internal space 167 and one or more openings 156. The openings 156 may be in fluid communication with the internal space 167.

[0055] In some embodiments, the outlet portion 160 includes a channel 164 and a tube 162. The channel 164 may extend through the tube 162. The channel 164 may include a proximal end 163 which may include a channel opening 176. The channel 164 may include an outlet 170 which may be located on the opposite side of the channel opening 176 and the proximal end 163. The channel 164 may enable fluid communication between the outlet 170 and the channel opening 176, such that fluid entering the channel 164 at the channel opening 176 (e.g., from the first connector 102) flows through the channel 164 and out through the outlet 170. The tube 162 may be configured to receive and connect to a portion of a pipe (e.g., a second portion of a pipe). In some embodiments, the tube 162 includes a groove 169 located on the inner surface of the tube 162. The groove 169 may be configured to assist in securing a portion of the pipe within the tube 162. For example, a portion of the pipe material may be inserted into the tube 162, and the groove 169 may be configured to help prevent the portion of the pipe material from being accidentally removed or disconnected from the second connector 140.

[0056] The connecting portion 155 may be connected to the outlet portion 160 such that the channel 164 extends into the internal space 167 of the connecting portion 155. In some embodiments, the channel opening 176 is located within the internal space 167. For example, the channel opening 176 may be located within the internal space 167 such that fluid entering the opening 156 flows into the internal space 167 and into the channel opening 176. The fluid may then flow from the channel opening 176 through the channel 164 to the outlet 170.

[0057] The second connector 140 may include a tension member 142. In some embodiments, the threaded member 142 is substantially the same as the threaded member 136. The threaded member 142 may be connected to the connecting portion 155 and may be positioned close to the first end 141. In some embodiments, the threaded member 142 is connected to the connecting portion 155 such that the connecting portion 155 is at least partially located within the threaded member 142. In some embodiments, the threaded member 142 has a spring-like structure. For example, the threaded member 142 may be biased to assume a locked position, similar to the threaded member 136. The threaded member 142 may move from the locked position to an unlocked position in response to a rotational force. Since the threaded member 142 is biased to assume a locked position, removing the rotational force results in the threaded member 142 returning to the locked position. In some embodiments, rotating the screw-in member 142 relative to the connecting portion 155 results in the screw-in member 142 taking an unlocked position, which allows a fluid passage to be formed from the first connector 102 to the second connector 140 through the screw-in member 142.

[0058] The threaded member 142 may include a channel 147. The channel 147 may allow fluid communication through the threaded member 142. In some embodiments, when the first connector 102 is connected to the second connector 140, the threaded member 142 is positioned between the mating portion 130 and the connecting portion 155. The locked position of the threaded member 142 prevents fluid communication between the first connector 102 and the second connector 140. For example, the locked position of the threaded member 142 blocks the fluid passage between the opening 139 and the opening 156. In the locked position, the channel 147 of the threaded member 142 (see Figure 6B) may not be aligned with or misaligned with the opening 156 of the connecting portion 155, thereby blocking the fluid passage from the first connector 102 to the second connector 140.

[0059] Figure 5 is a side cross-sectional view of the coupler assembly of Figure 2 according to various embodiments of this disclosure. Figure 6A is a side perspective view of the coupler assembly of Figure 1 in a second configuration according to various embodiments of this disclosure. Figure 6B is a side cross-sectional view of the coupler assembly of Figure 6A according to various embodiments of this disclosure. Figure 6C is an enlarged side cross-sectional view of the coupler assembly of Figure 6A according to various embodiments of this disclosure. Figure 7 is a side cross-sectional view of the coupler assembly of Figure 1 in a third configuration according to various embodiments of this disclosure.

[0060] Referring to Figures 5 to 7, when the threaded member 142 moves to the unlocked position (for example, via rotation of the threaded member 142 relative to the connecting portion 155), the channel 147 aligns with the opening 156. When the first connector 102 is connected to the second connector 140 and the threaded member 142 is in the unlocked position, the channel 147 aligns with the openings 139 and 156, allowing a fluid passage to form from the first connector 102 to the second connector 140.

[0061] In some embodiments, when the first connector 102 is connected to the second connector 140, the screw-in member 142 is in the unlocked position, resulting in the screw-in member 136 also being in the unlocked position. For example, the screw-in member 142 may include a keyhole 144. The keyhole 144 may be configured to receive a key member 138 when the first connector 102 is connected to the second connector 140. In some embodiments, connecting the first connector 102 to the second connector 140 aligns the key member 138 with the keyhole 144 such that the key member 138 extends at least partially into the keyhole 144. The keyhole 144 may be sized and shaped to accommodate the size and shape of the key member 138 so that the keyhole 144 can receive and secure the key member 138 when the first connector 102 is connected to the second connector 140.

[0062] As a result of the key member 138 being inserted into and fixed in the keyhole 144, the screw-in member 136 is connected to the screw-in member 142, and the rotation of the screw-in member 142 causes the rotation of the screw-in member 136. In some embodiments, when the screw-in member 142 is connected to the screw-in member 136, moving the screw-in member 142 from the locked position to the unlocked position results in the screw-in member 136 moving from the locked position to the unlocked position. The fact that the screw-in member 136 and the screw-in member 142 are connected together in the unlocked position allows for the formation of a fluid passage from the first connector 102 to the second connector 140.

[0063] In some embodiments, when the screw-in members 136 and 142 are connected together in the unlocked position, channel 127 is aligned with opening 139, channel 147 is aligned with openings 139 and 156, and thus channel 147 is aligned with channel 127. As a result of channel 127 being aligned with openings 139, 147, and 156, the first connector 102 is in fluid communication with the second connector 140. For example, when channel 127 is aligned with openings 139, 147, and 156, fluid may flow from the internal space 135 through channel 127, opening 139, channel 147, and opening 156 into internal space 167 and channel 164. As a result, a fluid passage may be formed between the first connector 102 and the second connector 140 (see Figures 6B to 6C).

[0064] Referring to Figures 2 and 5-6C, the second connector 140 may include a sleeve 150. The sleeve 150 may be disposed around the threaded member 142, the connecting portion 155, and the outflow portion 160. For example, the sleeve 150 may surround the threaded member 142 and the connecting portion 155. In some embodiments, at least a portion of the outflow portion 160 is disposed within the sleeve 150. The sleeve 150 may be configured to move relative to the threaded member 142, the connecting portion 155, and / or the outflow portion 160. In some embodiments, the sleeve 150 is configured to extend beyond the first end 141. For example, the sleeve 150 may move along a central axis relative to the threaded member 142, the connecting portion 155, and / or the outflow portion 160, such that the sleeve 150 moves between the first end 141 and the second end 143. In some embodiments, the sleeve 150 is configured to be locked in a predetermined position in the axial direction to prevent axial movement. The sleeve 150 may be locked in a predetermined position in the axial direction so as to extend beyond the first end 141 (Figure 5).

[0065] In some embodiments, the sleeve 150 can be locked in a predetermined position at multiple axial positions. For example, the sleeve 150 may be locked in a predetermined position in the axial direction such that its edge is flush with the surface of the threaded member 142 (Figure 3A), or so that the sleeve 150 extends beyond the first end 141 while still surrounding the threaded member 142 (Figure 5). In some embodiments, the sleeve 150 extends beyond the first end 141 so that at least a portion of the mating portion 130 is disposed within the sleeve 150 when the first connector 102 is connected to the second connector 140. The sleeve 150 may be biased to take an extended position so that it extends beyond the first end 141 and away from the outflow portion 160.

[0066] The sleeve 150 may include a groove 159 configured to receive a ring 132 of the mating portion 130. In some embodiments, when the mating portion 130 of the first connector 102 is inserted and positioned within the sleeve 150, the sleeve 150 may be secured to the mating portion 130 by the friction-fitting ring 132 in the groove 159. As a result of positioning the ring 132 within the groove 159, the sleeve 150 is secured to the first connector 102 (e.g., the mating portion 130). The securing of the ring 132 within the groove 159 prevents movement of the sleeve 150 along the central axis AA relative to the mating portion 130. This reduces accidental disengagement of the first connector 102 (e.g., the mating portion 130) from the second connector 140 (e.g., the sleeve 150). In some embodiments, positioning the ring 132 within the groove 159 allows the sleeve 150 to rotate relative to the mating portion 130.

[0067] In some embodiments, the sleeve 150 includes a proximal end 151 and a distal end 153. The sleeve 150 may also include a tab 152 disposed at the distal end of the sleeve 150. The tab 152 may be biased toward the proximal end 151. For example, the tab 152 may have a natural state and a compressed state. In some embodiments, the tab 152 is configured to be compressed by applying pressure to it. In the compressed state, the tab 152 may move toward the distal end 153 compared to when the tab 152 is in its natural state. The tab 152 may include a biasing element for biasing the tab (for example toward the proximal end 151) in its natural state.

[0068] In some embodiments, the sleeve 150 has a locked position (Figure 2) and an unlocked position (Figure 6A). The sleeve 150 may be biased to assume the locked position. Applying a rotational force may move the sleeve 150 from the locked position to the unlocked position. In some embodiments, when the first connector 102 is connected to the second connector 140, the sleeve 150 may be fixed in the unlocked position by fixing the tab 152 in the recess 133 of the ring 134. Fixing the tab 152 in the recess 133 may keep the sleeve 150 in the unlocked position. In some embodiments, as the sleeve 150 rotates, the tab 152 is pressed against the ring 134, resulting in the tab 152 being compressed. The sleeve 150 may rotate until the tab 152 is positioned and fixed in the recess 133, resulting in the tab 152 being in a natural state. As a result of the tab 152 being positioned and fixed in the recess 133, the sleeve 150 is fixed in the unlocked position. When the sleeve 150 is in the unlocked position, the screw-in member 142 is also placed in the unlocked position. In other words, when the sleeve 150 is fixed in the unlocked position, the screw-in member 142 is fixed in the unlocked position.

[0069] The sleeve 150 may be connected to the screw-in member 142 such that rotation of the sleeve 150 results in rotation of the screw-in member 142 to the unlocked position. For example, the screw-in member 142 may rotate to the unlocked position as a result of rotating the sleeve 150 relative to the connecting portion 155 and / or the outflow portion 160 to take the unlocked position. In some embodiments, when the first connector 102 is connected to the second connector 140, rotation of the sleeve 150 relative to the connecting portion 155 and / or the outflow portion 160 results in the key member 138 being positioned in the keyhole 144, so that rotation of the screw-in member 142 results in rotation of the screw-in member 136. Channels 127 and 147 may be aligned such that channel 147 aligns with the opening 139 when channel 127 aligns with the opening 139. As a result of the rotation of both the threaded member 142 and the threaded member 136 due to the rotation of the sleeve 150, the channel 127 may align with the opening 139, the channel 147, and the opening 156, thereby forming a fluid passage between the first connector 102 and the second connector 140.

[0070] In some embodiments, a rotational force is applied to the sleeve 150, causing it to rotate, which in turn causes the threaded members 142 and 136 to rotate. The rotation of the threaded members 142 and 136 may cause them to assume an unlocked position. Since the threaded members 142 and 136 are biased to assume a locked position, removing the rotational force may cause the threaded members 142 and 136 to return to the locked position. In some embodiments, when the first connector 102 is connected to the second connector 140, the tab 152 is secured in the recess 133, resulting in the sleeve 150 (and the threaded members 142 and 136) being maintained in an unlocked position. Since the sleeve 150 is biased to return to the locked position, the sleeve 150 (and the threaded members 142 and 136) may move to return to the locked position when the tab 152 is pushed out of the recess 133, causing the sleeve 150 to return to the locked position again.

[0071] Referring to Figures 6A to 6C, when the sleeve 150 is fixed in the unlocked position, the screw-in members 142 and 136 take the unlocked position, and a fluid passage (indicated by arrows in Figure 6B) is formed through the first connector 102 and the second connector 140. For example, the fact that the sleeve 150, screw-in member 142, and screw-in member 136 are in the unlocked position allows the fluid to flow from the inlet 110 into the internal space 135, through channel 127, opening 139, channel 147, and opening 156 into the internal space 167, and through channel 164 to the outlet 170.

[0072] The coupler assembly 100 may be configured to transition from a first configuration to a second configuration. In the first configuration, the first connector 102 is connected to the second connector 140, and the sleeve 150 is in the locked position. When the coupler assembly 100 is in the first configuration, channel 127 is not aligned with the opening 139 and therefore blocks the opening 139, and channel 147 is not aligned with the opening 156 and therefore blocks the opening 156, thus preventing fluid from flowing from the first connector 102 to the second connector 140. When the sleeve 150 is rotated to the unlocked position, and as a result the threaded members 142 and 136 are moved to the unlocked position, a fluid passage is formed between the first connector 102 and the second connector 140, and as a result the coupler assembly 100 becomes the second configuration.

[0073] Referring to Figure 7, the coupler assembly 100 may be configured to have a third configuration. In the third configuration, the first connector 102 is disconnected from the second connector 140. The coupler assembly 100 may transition from the second configuration to the third configuration by moving the sleeve 150 to the locked position by removing the tab 152 from the state in which it is positioned within the recess 133. Since the sleeve 150 is biased to assume the locked position, applying pressure to the tab 152 toward the distal end 153 removes the tab 152 from the recess 133, resulting in the sleeve 150 returning to the locked position. When the sleeve 150 moves to the locked position, the threaded members 136 and 142 may also move to the locked position, thereby blocking the fluid passage from the first connector 102 to the second connector 140. The first connector 102 may be disconnected from the second connector 140 by removing the first connector 102 from its position within the sleeve 150.

[0074] In some embodiments, the openings 139 and / or 156 include a sealing element 124. The sealing element 124 may be configured to prevent fluid leakage from the openings 139 and / or 156 when the first connector 102 is connected to the second connector 140. In some embodiments, the sealing element 124 prevents fluid leakage from the first connector 102 and / or the second connector 140. In some embodiments, when a fluid passage is formed between the first connector 102 and the second connector 140, the sealing element 124 disposed in or on the openings 139 and / or 156 prevents fluid leakage or waste. The sealing element 124 may be an O-ring, adhesive, tube, or any other type of element configured to prevent leakage from the openings 139 and / or 156.

[0075] In some embodiments, the first connector 102 is configured to be disconnected from the second connector 140 by a break event caused by a pull-out force. For example, the pull-out force (e.g., force F) may 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 a pipe connected to the first connector 102. The pull-out force may move the first connector 102 axially away from the second connector 140 along the central axis AA, thereby disconnecting the first connector 102 from the second connector 140. In some embodiments, disconnecting the first connector 102 from the second connector 140 requires removing the ring 132 from the groove 159. For example, the ring 132 may be removed from the groove 159 depending on the pulling force, and as a result, the second connector 140 (e.g., sleeve 150) is no longer connected to and fixed to the first connector 102 (e.g., mating portion 130).

[0076] In some embodiments, applying a pulling force results in the tab 152 being removed from the recess 133, and as a result, the sleeve 150 is biased to take a locked position, causing the sleeve 150 to rotate to the locked position. When a pulling force is applied, the tab 152 is removed from the recess 133, the sleeve 150 rotates to the locked position, the mating portion 130 is released from its position within the sleeve 150, and the first connector 102 is thus disconnected from the second connector 140.

[0077] In some embodiments, the first connector 102 is disconnected from the second connector 140 when a force F exceeds a predetermined threshold force. For example, if the force F is less than the predetermined threshold force, the first connector 102 may not be disconnected from the second connector 140. The predetermined threshold force prevents accidental or inadvertent disconnection based on small forces or small movements. The predetermined threshold force may be based on the flexibility and / or rigidity of the ring 132, groove 159, tab 152, recess 133, and / or sleeve 150. For example, the higher the rigidity of the ring 132, groove 159, tab 152, recess 133, and / or sleeve 150, the higher the predetermined threshold force. In some embodiments, the mating portion 130 includes a plurality of rings 132 arranged in various positions, and the sleeve 150 includes a corresponding number of grooves 159 to increase the frictional force between the mating portion 130 and the sleeve 150 in order to prevent accidental disconnection of the mating portion 130 (and the first connector 102) from the second connector 140. In some embodiments, if the pull-out force exceeds a predetermined threshold force, the rings 132 of the mating portion 130 may not be able to remain in place with the grooves 159 of the sleeve 150, thereby allowing the first connector 102 to be disconnected from the second connector 140.

[0078] In some embodiments, a predetermined threshold force is approximately 4 pounds (lb). The predetermined threshold force may be approximately 1 lb to 8 lb, approximately 3 lb to 7 lb, approximately 4 lb to 6 lb, or greater than 8 lb. 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. The 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 the force exceeds 4 lb, causing the first connector 102 to automatically release or disconnect from the second connector 140, effectively closing the fluid passage between the first connector 102 and the second connector 140 as described herein.

[0079] In some embodiments, when the first connector 102 is disconnected from the second connector 140, the user sterilizes the first connector 102 and reconnects the first connector 102 to the second connector 140 by reinserting the mating portion 130 into the sleeve 150 and moving the sleeve 150 from the locked position to the unlocked position. In some embodiments, the user may sterilize the first connector 102 and / or the second connector 140. As a result of reconnecting the first connector 102 to the second connector 140, the coupler assembly 100 transitions from the third configuration to the first configuration. As a result of moving the sleeve 150 from the locked position to the unlocked position, the coupler assembly 100 transitions from the second configuration to the third configuration.

[0080] The disclosures described herein include at least the following provisions:

[0081] Clause 1: A coupler comprising: a first connector including a mating portion having a first opening; a first threaded member disposed within the mating portion and having a first channel, wherein the first threaded member is rotatable relative to the mating portion; a second connector including a second threaded member having a second channel; and a connecting portion having a second opening and at least partially disposed within the second threaded member, wherein the second threaded member is connected to the first threaded member to connect the first connector to the second connector. When the first connector is connected to the second connector, rotation of the second threaded member causes rotation of the first threaded member, resulting in alignment and fluid communication between the first channel, the first opening, the second channel, and the second opening to form a fluid passage extending from the first connector to the second connector. The first connector is configured to disconnect from the second connector when the pulling force exceeds a predetermined threshold force.

[0082] Clause 2: The coupler according to Clause 1, further comprising a sleeve connected to a second connector and at least partially surrounding a screw-in member, the sleeve being rotatable relative to the connecting portion.

[0083] Clause 3: The coupler according to Clause 2, wherein the sleeve includes a tab configured to be disposed within a recess of the mating portion when a fluid passage is formed, thereby locking the sleeve in the unlocked position.

[0084] Clause 4: The coupler according to Clause 3, wherein the mating portion includes a ring having a recess configured to receive a tab and secure the sleeve in the unlocked position.

[0085] Clause 5: The coupler described in Clause 3, wherein the tab has a natural state and a compressed state, the tab is biased to be in the natural state, and as a result of fixing the tab in the recess, the tab transitions from the natural state to the compressed state.

[0086] Clause 6: The coupler according to Clause 2, wherein the sleeve is connected to the second threaded member such that the rotation of the sleeve causes the rotation of the second threaded member.

[0087] Clause 7: The coupler according to Clause 2, wherein the sleeve includes a groove configured to receive a ring of the mating portion when the first connector is connected to the second connector.

[0088] Clause 8: The coupler described in 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.

[0089] Clause 9: The coupler described in Clause 8, where the central axis extends through the first and second connectors when the first connector is connected to the second connector.

[0090] Clause 10: The coupler according to Clause 1, wherein the first threaded member and the second threaded member each have a locked position and an unlocked position, and when the first connector is connected to the second connector, the second threaded member being in the unlocked position causes the first threaded member to take the unlocked position.

[0091] Clause 11: The coupler according to Clause 10, wherein the first threaded member and the second threaded member are each biased to assume a locked position.

[0092] Clause 12: The coupler according to Clause 1, wherein the first threaded member is biased so as not to align the first channel with the first opening.

[0093] Clause 13: The coupler according to Clause 1, wherein the second threaded member is biased so as not to align the second channel with the second opening.

[0094] Clause 14: The coupler according to Clause 1, wherein the first threaded member includes a key member extending at least partially through the mating portion, and the second threaded keyhole is sized and shaped to receive the key member and secure the key member within the keyhole.

[0095] Clause 15: The coupler according to Clause 1, wherein the second connector includes an outlet portion connected to the coupling portion, and the outlet portion has a channel that extends at least partially into the coupling portion.

[0096] Clause 16: The coupler according to Clause 1, wherein the mating portion includes a first internal space, and the connecting portion includes a second internal space, the first internal space being in fluid communication with the second internal space when the first connector is connected to the second connector and a fluid passage is formed.

[0097] Clause 17: The coupler described in Clause 1, wherein the first connector remains connected to the second connector when the pull-out force does not exceed a predetermined threshold force.

[0098] Clause 18: The coupler according to Clause 1, having a first configuration, in which the first connector is connected to the second connector such that the mating portion is at least partially located within the second connector and the fluid passage is blocked.

[0099] Clause 19: The coupler according to Clause 1, wherein the coupler has a second configuration, in which the first connector is connected to the second connector such that the mating portion is at least partially located within the second connector and a fluid passage is formed.

[0100] Clause 20: The coupler according to Clause 1, having a third configuration in which the first connector is disconnected from the second connector and the fluid passage is blocked.

[0101] Clause 21: The coupler as described in Clause 1, wherein the first connector is connected to a first portion of the pipe at the first end, and the second connector is connected to a second portion of the pipe at the outflow portion.

[0102] Clause 22: A first connector comprising a first end, a mating portion disposed adjacent to a second end opposite to the first end and having a first opening and a first internal space, and a first screw-in member disposed within the first internal space, wherein the first screw-in member has a first channel and a key member extending through the mating portion, the first screw-in member is rotatable relative to the mating portion, the first screw-in member has a locked position and an unlocked position, and the first screw-in member is biased to assume the locked position; and a second connector comprising a second screw-in member having a second channel and a keyhole, an outflow portion having an outlet, and a connecting portion having a second internal space and disposed between the second screw-in member and the outflow portion. The coupler comprises a first channel, a first opening, a second channel, and a second opening, wherein the connecting portion has a second opening and is at least partially disposed within a second threaded member, and a keyhole is configured to receive the keyed member and connect the first connector to the second connector, and the second threaded member has a locked position and an unlocked position, and the second threaded member is biased to assume the locked position, wherein when the first connector is connected to the second connector, rotation of the second threaded member causes rotation of the first threaded member, resulting in alignment and fluid communication between the first channel, the first opening, the second channel, and the second opening, so as to form a fluid passage between the first internal space and the second internal space extending from the first connector to the second connector. The first connector is configured to disconnect from the second connector in response to a pull-out force exceeding a predetermined threshold force.

[0103] Clause 23: A first connector comprising: an inlet portion disposed adjacent to a first end and having an inlet; a mating portion disposed adjacent to a second end opposite to the first end and having a first opening and a first internal space; and a first screw-in member disposed within the first internal space, wherein the first screw-in member has a first channel and a key member extending through the mating portion, the first screw-in member is rotatable relative to the mating portion, the first screw-in member has a locked position and an unlocked position, and the first screw-in member is biased to assume the locked position; and a second connector comprising: a second screw-in member having a second channel and a keyhole; an outflow portion having an outlet; and a connecting portion having a second internal space and disposed between the second screw-in member and the outflow portion. A coupler comprising: a second connector having a second opening and at least partially disposed within a second screw-in member, a keyhole configured to receive the key member and connect the first connector to the second connector, the second screw-in member having a locked position and an unlocked position, and the second screw-in member being biased to assume the locked position; and a sleeve connected to and partially surrounding the second screw-in member, the sleeve being rotatable relative to the coupling portion such that rotation of the sleeve causes rotation of the second screw-in member from the locked position to the unlocked position, and the sleeve including a groove configured to receive a ring of the mating portion and secure the sleeve to the mating portion when the first connector is connected to the second connector. When the first connector is connected to the second connector, the rotation of the sleeve causes the rotation of the second threaded member, and the rotation of the second threaded member causes the rotation of the first threaded member, resulting in alignment and fluid communication between the first channel, the first opening, the second channel, and the second opening so as to form a fluid passage between the first internal space and the second internal space extending from the first connector to the second connector. The first connector is configured to disconnect from the second connector in response to the pull-out force exceeding a predetermined threshold force.

[0104] This disclosure is provided so that any person skilled in the art can implement the various embodiments described herein. This disclosure provides various examples of the subject art, but 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 set forth herein may be applied to other embodiments.

[0105] 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 used for convenience only and do not limit the invention.

[0106] The term “exemplary” is used herein to mean “serving as an example or illustration.” Any aspect or design described herein as “exemplary” should not necessarily be construed as being preferable or advantageous to other aspects or designs. In one aspect, various alternative configurations and operations described herein may be considered at least equivalent.

[0107] The terms "aspect" 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. Disclosures relating to aspects may be compatible with all configurations, or one or more configurations. An aspect may provide one or more examples. The terms "aspect" and similar phrases may refer to one or more aspects, and vice versa. The terms "embodiment" and similar phrases do not imply that such an embodiment is essential to the subject art, or that such an embodiment applies to all configurations of the subject art. Disclosures relating to embodiments may be compatible with all embodiments, or one or more embodiments. An embodiment may provide one or more examples. The terms "embodiment" and similar phrases may refer to one or more embodiments, and vice versa. The terms "configuration" and similar phrases do not imply that such a configuration is essential to the subject art, nor that such a configuration is compatible with all configurations of the subject art. Disclosures relating to configurations may be compatible with all configurations, or one or more configurations. An configuration may provide one or more examples. Terms such as "composition" can refer to one or more compositions, and vice versa.

[0108] 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 common in the art to which they relate.

[0109] In one aspect, the term "to be linked" may refer to direct linking. In another aspect, the term "to be linked" may refer to indirect linking.

[0110] 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. In this case, the top, bottom, front, and rear surfaces may extend upward, downward, diagonally, or horizontally in a gravity-based reference frame.

[0111] Without any deviation from the scope of the subject art, various things may be configured differently (for example, they may be arranged in different orders or divided in different ways). All structural and functional equivalents of elements of various aspects described throughout this disclosure, which are known or will be known to those skilled in the art, are expressly incorporated by reference herein and are intended to be included in the claims. Furthermore, nothing disclosed herein, whether such disclosure is expressly included in the claims or not, is intended to be open to the public. No element of any claim should be construed under Section 112, paragraph 6 of the U.S. Patent Act unless that element is expressly described using the phrase “means for” or, in the case of a method claim, the element is described using the phrase “steps for.” Furthermore, to the extent that terms such as “include” and “have” are used, such terms are intended to be inclusive, as “comprise” is interpreted when the term “comprise” is used as a transitional clause in a claim.

[0112] The “Title of the Invention,” “Background Art,” “Summary of the Invention,” “Brief Description of the Drawings,” and “Abstract” of this Disclosure are incorporated herein by reference, but are provided as exemplary examples of the Disclosure, not as restrictive statements. This Disclosure is filed with the understanding that they are not used to limit the scope or meaning of the claims. In addition, it is understood that in the “Modes for Carrying Out the Invention,” the description provides exemplary examples, and various features are grouped together for the purpose of streamlining the Disclosure in various embodiments. This method of disclosure should not be interpreted as reflecting an intention that the subject matter described in the claims requires more features than are explicitly described in each claim. Rather, as reflected in the subsequent claims, the subject matter of the invention consists of less than all features of the single configuration or operation disclosed. The following claims are incorporated herein by reference in the “Modes for Carrying Out the Invention,” and each claim stands on its own as subject matter described in the claims individually.

[0113] The claims are not intended to be limited to the embodiments described herein, but are intended to be of the full scope corresponding to the language claims and to encompass all legal equivalents. Nevertheless, no claim is intended to encompass, nor should they be interpreted 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 fitting portion having a first opening, and a first screw-in member disposed within the fitting portion and having a first channel, wherein the first screw-in member is rotatable relative to the fitting portion, A second connector comprising: a second threaded member having a second channel; and a connecting portion having a second opening and at least partially disposed within the second threaded member, wherein the second threaded member is configured to connect to the first threaded member, thereby connecting the first connector to the second connector; When the first connector is connected to the second connector, the rotation of the second threaded member causes the rotation of the first threaded member, resulting in alignment and fluid communication between the first channel, the first opening, the second channel, and the second opening, so as to form a fluid passage extending from the first connector to the second connector. The first connector is configured to disconnect from the second connector when the pulling force exceeds a predetermined threshold force. Kapla.

2. The second connector further comprises a sleeve connected to the second connector and at least partially surrounding the screw-in member, the sleeve being rotatable relative to the connecting portion. The coupler according to claim 1.

3. The coupler according to claim 2, wherein the sleeve includes a tab configured to be disposed within a recess of the fitting portion when the fluid passage is formed, and to fix the sleeve in the unlocked position.

4. The coupler according to claim 3, wherein the fitting portion includes a ring having a recess configured to receive the tab and fix the sleeve in the unlocked position.

5. The coupler according to claim 3, wherein the tab has a natural state and a compressed state, the tab is biased to be in the natural state, and as a result of fixing the tab in the recess, the tab transitions from the natural state to the compressed state.

6. The coupler according to claim 2, wherein the sleeve is connected to the second screw-in member such that the rotation of the sleeve causes the rotation of the second screw-in member.

7. The coupler according to claim 2, wherein the sleeve includes a groove configured to receive the ring of the mating portion when the first connector is connected to the second connector.

8. The coupler according to claim 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.

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

10. The coupler according to claim 1, wherein the first screw-in member and the second screw-in member each have a locked position and an unlocked position, and when the first connector is connected to the second connector, the second screw-in member is in the unlocked position, causing the first screw-in member to assume the unlocked position.

11. The coupler according to claim 1, wherein the first screw-in member is biased so as not to align the first channel with the first opening.

12. The coupler according to claim 1, wherein the second screw-in member is biased so as not to align the second channel with the second opening.

13. The coupler according to claim 1, wherein the first screw-in member includes a key member that extends at least partially through the fitting portion, and the second screw-in keyhole is sized and shaped to receive the key member and fix the key member within the keyhole.

14. The coupler according to claim 1, wherein the second connector includes an outlet portion connected to the connecting portion, and the outlet portion has a channel that extends at least partially into the connecting portion.

15. The coupler according to claim 1, wherein the fitting portion includes a first internal space, the connecting portion includes a second internal space, and the first internal space is in fluid communication with the second internal space when the first connector is connected to the second connector to form the fluid passage.

16. The coupler according to claim 1, wherein the coupler has a first configuration, in which the first configuration, the first connector is connected to the second connector such that the mating portion is at least partially disposed within the second connector and the fluid passage is blocked.

17. The coupler according to claim 1, wherein the coupler has a second configuration, in which the first connector is connected to the second connector such that the mating portion is at least partially disposed within the second connector and the fluid passage is formed.

18. The coupler according to claim 1, wherein the coupler has a third configuration, in which the first connector is disconnected from the second connector and the fluid passage is blocked.

19. A first connector comprising a first end, a fitting portion disposed adjacent to a second end opposite to the first end and having a first opening and a first internal space, and a first screw-in member disposed within the first internal space, wherein the first screw-in member has a first channel and a key member extending through the fitting portion, the first screw-in member is rotatable relative to the fitting portion, the first screw-in member has a locked position and an unlocked position, and the first screw-in member is biased to assume the locked position, A second connector comprising: a second screw-in member having a second channel and a keyhole; an outflow portion having an outlet; and a connecting portion having a second internal space and disposed between the second screw-in member and the outflow portion, wherein the connecting portion has a second opening and is at least partially disposed within the second screw-in member; the keyhole is configured to receive the keyhole and connect the first connector to the second connector; the second screw-in member has a locked position and an unlocked position, and the second screw-in member is biased to assume the locked position; When the first connector is connected to the second connector, the rotation of the second threaded member causes the rotation of the first threaded member, resulting in alignment and fluid communication between the first channel, the first opening, the second channel, and the second opening, so as to form a fluid passage between the first internal space and the second internal space extending from the first connector to the second connector. The first connector is configured to disconnect from the second connector when the pulling force exceeds a predetermined threshold force. Kapla.

20. A first connector comprising: an inlet portion disposed near a first end and having an entrance; a fitting portion disposed near a second end opposite the first end and having a first opening and a first internal space; and a first screw-in member disposed within the first internal space, wherein the first screw-in member has a first channel and a key member extending through the fitting portion, the first screw-in member is rotatable relative to the fitting portion, the first screw-in member has a locked position and an unlocked position, and the first screw-in member is biased to assume the locked position; A second connector comprising: a second screw-in member having a second channel and a keyhole; an outflow portion having an outlet; and a connecting portion having a second internal space and disposed between the second screw-in member and the outflow portion, wherein the connecting portion has a second opening and is at least partially disposed within the second screw-in member; the keyhole is configured to receive the keyhole and connect the first connector to the second connector; the second screw-in member has a locked position and an unlocked position, and the second screw-in member is biased to assume the locked position; A sleeve connected to and partially surrounding the second screw-in member, wherein the sleeve is rotatable relative to the connecting portion such that rotation of the sleeve causes rotation of the second screw-in member from the locked position to the unlocked position, and the sleeve includes a groove configured to receive a ring of the mating portion and secure the sleeve to the mating portion when the first connector is connected to the second connector, When the first connector is connected to the second connector, the rotation of the sleeve causes the rotation of the second threaded member, and the rotation of the second threaded member causes the rotation of the first threaded member, resulting in alignment and fluid communication between the first channel, the first opening, the second channel, and the second opening so as to form a fluid passage between the first internal space and the second internal space extending from the first connector to the second connector. The first connector is configured to disconnect from the second connector when the pulling force exceeds a predetermined threshold force. Kapla.

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