Fixable medical fluid extension set system

Abstract

A medical fluid extended set system is disclosed that may include a tubing anchor (1100) and a fluid coupling device (2100) coupled to tubing (16), which may be secured to the patient to resist unintentional separation of the tubing anchor or a catheter (18) coupled to the tubing from the patient and to allow separation or disconnection of a fluid path between the tubing and another device coupled thereto upon exceeding a pulling force on the fluid coupling device, the disconnection including separation of the first and second valve assemblies such that the fluid paths of the first and second valve assemblies are occluded upon disconnection of the fluid coupling device.

Description

[Technical field]

[0001] The present disclosure relates generally to medical fluid connectors, and more particularly to a fixable medical fluid extension set system that can include medical connections that can be affixed to a patient to resist unintentional separation of medical fluid tubing, such as a catheter, from the patient. [Background technology]

[0002] Medical connections are widely used in fluid delivery systems such as those used in connection with intravenous (IV) fluid lines or tubing, blood access, hemodialysis, peritoneal dialysis, enteral nutrition, drug vial access, and other procedures. Tubing can be used for a variety of treatments that may require accessing the interior of a patient, including, for example, IV therapy and enteral nutrition. The interior of a patient can be accessed by creating a pathway through or into the patient through a natural or artificial orifice of the patient. The pathway can be created or maintained using a device such as an IV set that includes a catheter coupled to the tubing.

[0003] In some cases, tubing for medical fluids, such as an IV set, can be unintentionally removed or separated from a patient when unintentional forces are applied to the tubing, catheter, and / or another portion of the IV set or fluid pathway connected to the patient. For example, an IV set can be subjected to unintentional forces when a patient moves or turns in bed, or when the tubing or another portion of the IV set gets caught on a part of the bed, such as a rail, or when a patient becomes panicked, disoriented, or restless, thereby unintentionally or intentionally pulling the IV set away from the patient or from the medical equipment coupled to the tubing. Summary of the Invention

[0004] In accordance with at least some embodiments disclosed herein, it is recognized that the unintentional removal or disconnection of a medical connection, such as a medical fluid line, can cause injury to the patient or caregiver, such as by depriving the patient of medication, increasing the likelihood of infection for the patient, and exposing the caregiver to harmful medications.

[0005] An aspect of the present disclosure provides a method of providing a medical fluid extension set system, the method including providing tubing having a first end and a second end, the first end including a fluid coupling device, and coupling a tubing anchor to the tubing such that the tubing anchor is positioned between the first end and the second end of the tubing.

[0006] The present application therefore addresses several operational challenges encountered with conventional fluid connections and provides a number of improvements that enable users to provide fluid connections more easily and accurately while increasing safety and effectiveness.

[0007] Additional features and advantages of the subject technology will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the subject technology. The advantages of the subject technology will be realized and attained by the structure particularly pointed out in the specification and embodiments thereof as well as the accompanying drawings.

[0008] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the subject technology.

[0009] Various features of exemplary embodiments of the invention are described below with reference to the drawings, in which the illustrated embodiments are intended to illustrate, but not to limit, the invention. The drawings include the following figures: [Brief description of the drawings]

[0010] [Figure 1]FIG. 1 illustrates a medical fluid extension set system intravenously coupled to a patient, according to an aspect of the present disclosure. [Diagram 2] 2 illustrates the medical fluid extension set system of FIG. 1 being pulled away from a patient, according to an embodiment of the present disclosure. [Diagram 3] 2 illustrates a reassembly of a portion of the medical fluid extension set system of FIG. 1 according to an embodiment of the present disclosure. [Figure 4] 1A-1C show tubing anchors for use with an IV set intravenously connected to a patient, according to an embodiment of the present disclosure. [Diagram 5] 1 illustrates a tubing anchor coupled to a portion of a medical fluid extension set, according to aspects of the present disclosure. [Figure 6] FIG. 1 illustrates a front perspective view of a tubing anchor according to an aspect of the present disclosure. [Figure 7] FIG. 1 illustrates a top view of a tubing anchor according to aspects of the present disclosure. [Figure 8] FIG. 13 is a rear perspective view of a tubing anchor according to an aspect of the present disclosure. [Figure 9] FIG. 13 is a rear perspective view of a tubing anchor according to an aspect of the present disclosure. [Figure 10] FIG. 1 illustrates another embodiment of a medical fluid extension set system in accordance with aspects of the present disclosure. [Figure 11] FIG. 1 illustrates another embodiment of a medical fluid extension set system in accordance with aspects of the present disclosure. [Figure 12] FIG. 1 illustrates another embodiment of a medical fluid extension set system in accordance with aspects of the present disclosure. [Figure 13] FIG. 1 illustrates another embodiment of a medical fluid extension set system in accordance with aspects of the present disclosure. [Figure 14] FIG. 1 illustrates another embodiment of a medical fluid extension set system in accordance with aspects of the present disclosure. [Figure 15] FIG. 1 illustrates another embodiment of a medical fluid extension set system in accordance with aspects of the present disclosure. [Figure 16]FIG. 1 illustrates another embodiment of a medical fluid extension set system in accordance with aspects of the present disclosure. [Figure 17] FIG. 1 illustrates another embodiment of a medical fluid extension set system in accordance with aspects of the present disclosure. [Figure 18] FIG. 1 is a perspective view of a fluid coupling arrangement according to an aspect of the present disclosure. [Figure 19A] FIG. 19 is a perspective view of the fluid coupling device of FIG. 18 according to an embodiment of the present disclosure. [Figure 19B] FIG. 19 is a perspective view of the fluid coupling device of FIG. 18 according to an embodiment of the present disclosure. [Figure 20] 19C is a cross-sectional view of the fluid coupling device of FIGS. 19A and 19B according to an embodiment of the present disclosure. FIG. [Figure 21] 19 is a cross-sectional view of the fluid coupling of FIG. 18 according to an embodiment of the present disclosure. [Figure 22] FIG. 13 is a cross-sectional view of another embodiment of a fluid coupling apparatus according to aspects of the present disclosure. [Diagram 23] FIG. 13 is a perspective view of another embodiment of a fluid coupling apparatus according to aspects of the present disclosure. [Figure 24A] FIG. 24 is a perspective view of the fluid coupling device of FIG. 23 according to an embodiment of the present disclosure. [Figure 24B] FIG. 24 is a perspective view of the fluid coupling device of FIG. 23 according to an embodiment of the present disclosure. [Diagram 25] 24C is a cross-sectional view of the fluid coupling device of FIGS. 24A and 24B according to an embodiment of the present disclosure. FIG. [Figure 26] 24 is a cross-sectional view of the fluid coupling of FIG. 23 according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the subject technology. It should be understood that the subject technology may be practiced without some of these specific details. In other instances, well-known structures and techniques are not shown in detail so as not to obscure the subject technology.

[0012] Moreover, although the present specification describes specific details of various embodiments, it will be recognized that the description is merely illustrative and should not be interpreted as limiting in any way.In addition, although certain embodiments of the present disclosure may be disclosed or illustrated in the context of an IV set, it is contemplated that such embodiments can be used in other fluid delivery systems.Furthermore, various applications of such embodiments and modifications thereof that may occur to those skilled in the art are also encompassed by the generic concept described herein.

[0013] According to some embodiments, the present application discloses various features and advantages of a medical fluid extension set system. The medical fluid extension set system can provide efficient and safe maintenance of fluid connections, such as connections used to transfer medical fluids to or away from a patient. The medical fluid extension set system can maintain a fluid path by resisting unintentional disconnection when a pulling or tension is applied to a portion of the medical fluid extension set system, such as when the patient moves or when medical tubing is pulled away from the patient.

[0014] The medical fluid extension set system can also prevent injury to a patient or caregiver by resisting disconnection or detachment of a catheter coupled to the medical fluid extension set system when a pulling or tension exceeds a threshold value. The medical fluid extension set system can also prevent injury to a patient or caregiver by occluding a fluid pathway when a disconnection or detachment occurs between portions of the medical fluid extension set system. Additionally, the medical fluid extension set system can provide efficient and safe re-establishment of a fluid pathway by allowing reassembly of portions of the system after a disconnection or detachment occurs.

[0015] 1 illustrates a medical fluid extension set system 100 according to an embodiment of the present disclosure. The medical fluid extension set system 100 includes tubing 16, a tubing anchor 1100 configured to resist unintentional separation or removal of the medical fluid extension set system 100 from a patient, and a fluid coupling device 2100 configured to disconnect and occlude a fluid path of the medical fluid extension set system.

[0016] The tubing 16 of the medical fluid extension set system has a first end 115 and a second end 117, and the tubing anchor 1100 is coupled to the tubing 16 between the first end 115 and the second end 117 of the tubing.

[0017] The fluid coupling device 2100 is coupled to the first end 115 of the tubing 16 to form a fluid pathway between the medical fluid extension set system 100 and the IV set tubing 22. Although the fluid coupling device 2100 is shown as being coupled to the IV set tubing 22 having the first and second connectors 20, it should be understood that the present disclosure contemplates that the fluid coupling device 2100 may be coupled to another fluid transfer device or to tubing extending from the fluid coupling device 2100 to another portion of the IV set, such as a medication bag or an IV pump.

[0018] The second end 117 of the tubing is shown as being coupled to a catheter 18 configured to form an intravenous fluid pathway with a patient. The second end 117 of the tubing can include a connector configured to removably couple with the catheter 18 or another device, and in some embodiments of the present disclosure, the second end 117 of the tubing is joined or affixed to the catheter 18. Although the second end 117 of the tubing is shown as being coupled to the catheter 18, the present disclosure contemplates that the second end 117 of the tubing may be coupled to another fluid transfer device or may extend directly into a patient, such as in forming an enteral feeding tube.

[0019] The tubing anchor 1100 is affixed to the patient with tape 28 that extends across an upper surface of the tubing anchor 1100. Referring to Figure 2, if the tubing 16 or another portion of the medical fluid extension set system, or a portion of the IV set, is pulled in a direction DX away from the tubing anchor or the patient, the engagement of the tape 28 to the tubing anchor 1100 and the patient 10 can resist the force and prevent unintentional removal or disconnection of the tubing anchor 1100 and / or catheter 18 from the patient.

[0020] The medical fluid extension set system 100 can be configured such that at least a portion of the tubing 16 forms a non-linear or curved shape to allow movement of the tubing anchor 1110 prior to movement of the tubing second end 117. In some aspects of the present disclosure, the non-linear or curved shaped portion of the tubing 16 can allow movement of the tubing anchor 1110 prior to movement of the tubing second end 117 when the medical fluid extension set system, or a portion of an IV set coupled thereto, is pulled in a direction DX away from the tubing anchor or the patient 10.

[0021] To form a nonlinear or curved shape, the tubing anchor 1100 can be positioned a distance D1 from the second end 117 of the tubing, where the distance D1 is less than the length of the tubing extending between the tubing anchor 1100 and the second end 117 of the tubing. In some examples of the present disclosure, the distance D1 is less than the length of the tubing extending from the tubing anchor 1100 to the second end 117 of the tubing.

[0022] In some embodiments of the present disclosure, the medical fluid extension set system 100 is formed or manufactured with at least a portion of the tubing 16 having a non-linear or curved shape between the tubing anchor 1100 and the second end 117 of the tubing when the medical fluid extension set is unconstrained or unbiased. In some embodiments, the tubing 16, or a portion thereof, can include a bellows shape configured to allow elongation of the tubing 16 between the first end 115 and the second end 117 of the tubing.

[0023] To resist or prevent separation of the medical fluid extension set system or a portion thereof from the patient, the medical fluid extension set system may include a fluid coupling device 2100 configured to disconnect and block a fluid pathway of the medical fluid extension set system when a pulling or tension exceeds a threshold value. To disconnect and block a fluid pathway of the medical fluid extension set system, the fluid coupling device 2100 includes a first valve assembly 2110 and a second valve assembly 2210 removably coupled together.

[0024] FIG. 3 shows the first and second valve assemblies 2110, 2210 in a disconnected configuration, such as after the IV set tubing 22 has been pulled away from the tubing anchor 1100 or the patient 10 with a force that exceeds the disconnection threshold of the fluid coupling device 2100.

[0025] Upon disconnection or separation of the first valve assembly 2110 from the second valve assembly 2210, a fluid path is blocked in each of the first valve assembly 2110 and the second valve assembly 2210. The blocked fluid path prevents leakage of fluid from the respective tubing 16, 22 coupled to the first valve assembly 2110 and the second valve assembly 2210.

[0026] After disconnection or separation of the first valve assembly 2110 from the second valve assembly 2210, either the first valve assembly 2110 and the second valve assembly 2210 can be reconnected together to re-establish a fluid pathway with the medical fluid extension set system.

[0027] 4 shows a medical fluid extended set system 100 coupled to a patient and in use with an IV set. The IV set includes a medication bag 12, a drip chamber 14, and tubing 22. The tubing 22 extends between the drip chamber 14 and a fluid coupling device 2100 of the medical fluid extended set system. It should be understood that the present disclosure contemplates that either the first valve assembly 2110 and the second valve assembly 2210 can be coupled to the tubing 22 of the IV set, and the other of the first valve assembly 2110 and the second valve assembly 2210 can be coupled to the tubing 16 of the medical fluid extended set system.

[0028] To resist unintentional removal or disconnection of the tubing 16 or catheter 18 from the patient, tape 26 is placed across the tubing 16 and catheter 18 such that the tape engages the tubing 16, catheter 18, and patient. To increase resistance to unintentional removal or disconnection of the tubing 16 or catheter 18, a tubing anchor 1100 is positioned along the tubing 16 and tape 28 is placed across the tubing anchor 1100 such that the tape engages the tubing anchor 1100 and the patient 10.

[0029] In use, if the tubing 16, 22 or another portion of the medical fluid extension set system 100 and the IV set between the tubing anchor 1100 and the medication bag 12 is pulled in a direction away from the tubing anchor, the tape 28 engaged to the tubing anchor 1100 and the patient 10 can resist the force and prevent unintentional removal or disconnection of the tubing anchor 1100 and catheter 18 from the patient.

[0030] In some embodiments of the present disclosure, the tubing anchor 1100 can have tape and / or adhesive along a surface configured to engage against the patient and to resist unintentional separation of the tubing anchor 1100 from the anchor.

[0031] Referring now to FIG. 5, the medical fluid extension set system 100 is shown with the catheter 18 coupled to the second end 117 of the tubing and without the fluid coupling device 2100 for clarity. A detailed view of the tubing anchor 1100 and a portion of the tubing 16 is shown in FIG. 6. The tubing anchor 1100 includes an anchor body with an inner surface forming a tubing passage and an outer surface forming a sidewall, the sidewall extending away from the tubing passage. The outer surface of the anchor body can provide a larger surface area relative to the surface area of ​​the tubing along the coextensive length of the tubing anchor for engagement by the tape. In some embodiments of the present disclosure, the tubing anchor 1100 can include first and second sidewalls extending away from the tubing passage.

[0032] Although the tubing anchor 1100 is shown as being coupled along a fluid path of a medical fluid extension set, it should be understood that the tubing anchor 1100 may be connected to other fluid paths, such as IV tubing, an IV set, or an enteral feeding tube, etc. It should also be understood that the present disclosure contemplates embodiments in which the tubing anchor is positioned along another portion of a fluid path configured to couple to a patient.

[0033] Various embodiments contemplated by the present disclosure may include, but are not limited to, embodiments in which a medical fluid extension set includes a fluid connector 20, a catheter 18, and a fluid coupling device 2100 coupled to the tubing 16. A tubing anchor 1100 may be coupled to the tubing 16 between the fluid connector 20 and the catheter 18. In some embodiments of the present disclosure, a tubing anchor 1100 may be coupled to the tubing 16 between the fluid coupling device 2100 and the catheter 18.

[0034] The tubing anchor 1100, in some embodiments of the present disclosure, is coupled to or integral with the fluid coupling apparatus 2100. The tubing anchor 1100 can be coupled to or integral with the fluid coupling apparatus 2100 such that the tubing anchor 1100 is moveable relative to the fluid coupling apparatus 2100.

[0035] In some embodiments of the present disclosure, the medical fluid extension set can have a tubing anchor 1100 coupled to the tubing 16 between the fluid connector 20 and the fluid coupling device 2100, the tubing anchor 1100 positioned proximal to the fluid connector 20 such that the distance between the tubing anchor 1100 and the fluid connector 20 is less than the distance between the tubing anchor 1100 and the fluid coupling device 2100. The medical fluid extension set can have a tubing anchor 1100 coupled to the tubing 16 between the fluid connector 20 and the fluid coupling device 2100, the tubing anchor 1100 positioned proximal to the fluid coupling device 2100 such that the distance between the tubing anchor 1100 and the fluid coupling device 2100 is less than the distance between the tubing anchor 1100 and the fluid connector 20.

[0036] In some embodiments of the present disclosure, the medical fluid extension set can have a tubing anchor 1100 coupled to the tubing 16 between the fluid coupling device 2100 and the fluid connector 20 (e.g., upstream of the fluid coupling device 2100). The medical fluid extension set can have a tubing anchor 1100 coupled to the patient 10 such that the tubing 16 is between the patient's body or skin and the tubing anchor 100. The medical fluid extension set can have a first tubing anchor 1100 coupled to a first length of tubing 16, the first length of tubing 16 being coupled to a first valve assembly 2110 of the fluid coupling device, and a second tubing anchor 1100 coupled to a second length of tubing 16, the second length of tubing 16 being coupled to a second valve assembly 2210 of the fluid coupling device, such that the fluid coupling device 2100 is positioned between the first anchor 1100 and the second anchor 1100.

[0037] One embodiment of a tubing anchor 1100 is shown in Figure 6. The tubing anchor 1100 includes an anchor body 1102 having an inner surface that forms a tubing passage 1104 extending therethrough. The tubing passage 1104 can have a cross-sectional diameter that is approximately equal to or greater than the diameter defined by the outer surface of the tubing 16.

[0038] The anchor body 1102 also includes a first sidewall 1106 and a second sidewall 1108, each of which extends in a direction away from the tubing passage 1104. In some embodiments of the present disclosure, the first sidewall 1106 and the second sidewall 1108 are shaped to form a first wing 110 and a second wing 1112, respectively.

[0039] 7, a tubing passage 1104 extends through a first end 1120 and a second end 1122 of the anchor body and defines a longitudinal axis A11 through the anchor body. A first sidewall 1106 and a second sidewall 1108 extend in a direction away from the longitudinal axis A11. The first sidewall 1106 extends in a first direction away from the longitudinal axis A11 and the second sidewall 1108 extends in a second direction away from the longitudinal axis A11, the second direction being different from the first direction.

[0040] The first sidewall 1106 also extends between the first and second ends 1120, 1122 of the anchor body, and the second sidewall 1108 extends between the first and second ends 1120, 1122 of the anchor body. The first sidewall 1106 includes a forward portion 1124 and a rearward portion 1126, where the forward portion 1124 extends away from the first end 1120 and the rearward portion 1126 extends away from the second end 1122. The forward portion 1124 and the rearward portion 1126 intersect at an apex 1128 of the first sidewall.

[0041] The second sidewall 1108 includes a forward portion 1134 and a rearward portion 1136, where the forward portion 1134 extends away from the first end 1120 and the rearward portion 1136 extends away from the second end 1122. The forward portion 1134 and the rearward portion 1136 intersect at an apex 1138 of the second sidewall.

[0042] The front and rear portions 1124, 1134, 1126, 1136 of the first and second side walls 1106, 1108, respectively, can extend toward one another to form a tapered wing shape away from the longitudinal axis A11. The wings 1110, 1112 can be configured with a proximal portion adjacent the longitudinal axis A11 and an apex distal to the longitudinal axis A11. In embodiments having a tapered wing shape away from the longitudinal axis A11, the anchor body can have a first length L12 adjacent the tubing passageway that decreases toward a second length L12 in a direction away from the longitudinal axis A11.

[0043] In some aspects of the disclosure, the front portions 1124, 1134 of the first and second sidewalls 1106, 1108, respectively, extend away from the longitudinal axis A11 at a first angle A12 therebetween, and the rear portions 1126, 1136 of the first and second sidewalls 1106, 1108, respectively, extend away from the longitudinal axis A11 at a second angle A13 therebetween. The first and second angles A12, A13 can be selected such that the front and rear portions of the sidewalls 1106, 1108 intersect. In some embodiments, the first angle A12 is greater than the second angle A13.

[0044] While the tubing anchor 1100 is shown having an anchor body 1102 having a first sidewall 1106 and a second sidewall 1108 forming first and second wings, it should be understood that in some embodiments of the present disclosure, an anchor body 1102 having one sidewall or more than two sidewalls is contemplated. It is also contemplated in some embodiments of the present disclosure that the wings can be configured to have increasing lengths in a direction away from the longitudinal axis A11.

[0045] The anchor body 1102 further defines a top end 1140 and a bottom end 1142 of the tubing anchor, as shown in Figures 8 and 9. The top end 1140 shown in Figure 8 can include at least a portion of a top surface 1141 of the tubing anchor, and the bottom end 1142 shown in Figure 9 can include at least a portion of a bottom surface 1143 of the tubing anchor.

[0046] Both the top and bottom surfaces of the tubing anchor 1100 can form either a convex and / or concave shape. The top surface can form a convex shape 1144 that extends along the tubing passage between the first end 1120 and the second end 1122 of the anchor body. A portion of the top surface can also form a concave shape 1146 adjacent the tubing passage. The convex shape 1144 can extend between the first end 1120 and the second end 1122 of the anchor body and can be positioned between the portion of the outer surface having the concave shape 1146.

[0047] The bottom surface can form a profile shape having a convex and concave shape that is a mirror image of the top surface. In some embodiments of the present disclosure, the top and bottom surfaces can have the same or different profile shapes. For example, the top surface can include a convex shape and the bottom surface can form a concave shape, where the convex shape of the top surface can provide a low profile anchor body to avoid being unintentionally bumped or pulled while providing a large surface area relative to the height of the anchor body. The concave shape of the bottom surface that corresponds to the convex surface defined by the patient's body thereby enhances patient comfort when the anchor body is engaged against the patient.

[0048] The top end 1140 and bottom end 1142 of the anchor body 1102 define therebetween an anchor body height H11, and the apexes 1128, 1138 of the first and second sidewalls define therebetween an anchor body width W11. The width W11 can be greater than the anchor body height H11, and the width W11 and length L12 can be configured to provide a greater surface area for engaging the tubing anchor against a length of tape and against the patient.

[0049] In some embodiments, the height of the anchor body decreases in a direction away from the longitudinal axis A11. For example, a concave portion of the outer surface of the anchor body can form a portion of height H11 that tapers away from the longitudinal axis A11. In some embodiments, the width of the anchor body decreases between the first end 1120 and the second end 1122. For example, the width of the anchor body can decrease in a direction from the first end 1120 toward the second end 1122, thereby providing a wider cross-sectional profile of the first end 1120 compared to the second end 1122. The wider cross-sectional profile of the first end 1120 can provide resistance to unintentional separation of the tubing from the patient when the tubing anchor 1100 is pulled in a direction from the second end 1122 toward the first end 1120.

[0050] The anchor body 1102, or portions thereof, may be formed from a soft plastic, such as a thermoplastic elastomer (TPE). In some embodiments, a portion of the anchor body 1102 may be more flexible than another portion thereof. For example, a portion of the anchor body 1102 proximal to the apex of the sidewall may have a height H12 that is less than H11, such that the portion of the anchor body 1102 proximal to the apex of the sidewall is more flexible than a portion of the anchor body 1102 having height H11. The flexible portion of the anchor body 1102 may be configured to be biased or bent against the patient's skin to more closely conform to the patient's body.

[0051] The tubing anchor 1100 can be coupled to a length of tubing by inserting the tubing through the tubing passage 1104. The tubing anchor 1100 can then be moved or slid along the tubing 16 to a desired position. The tubing anchor 1100 can then be affixed to the patient by taping the tubing anchor 1100 to the patient or by exposing the adhesive on the outer surface of the tubing anchor. The adhesive can extend along a bottom surface of the tubing anchor 1100 that is configured to engage against the patient.

[0052] The medical fluid extension set system 100 can be configured such that longitudinal movement of the tubing anchor 1100 along the tubing 16 between the first end 115 and the second end 117 of the tubing is resisted. To resist movement of the tubing anchor 1100 along the tubing 16, the tubing anchor 1100 can be affixed to the tubing 16 by adhering the tubing anchor 1100 and the tubing 16 together, such as by an adhesive or a weld between the outer surface of the tubing 16 and the inner surface forming the tubing passage 1104. In some embodiments of the present disclosure, movement of the tubing anchor 1100 along the tubing 16 can be resisted by an interference fit between the tubing anchor 1100 and the tubing 16. To form an interference fit, the tubing passage 1104 can have a cross-sectional diameter that is approximately equal to or less than the diameter defined by the outer surface of the tubing 16.

[0053] The tubing anchor 1100 can be coupled to the tubing 16 such that either the first end 1120 or the second end 1122 of the anchor body is oriented toward the fluid coupling device 2100. In some embodiments of the present disclosure, the second end 1122 of the tubing anchor is oriented toward the first end 115 of the tubing that has the fluid coupling device. In some aspects of the present disclosure, the second end 1122 of the tubing anchor provides a larger surface area compared to the first end 1120 of the tubing anchor to resist pulling forces on the tubing 16 in a direction away from the tubing anchor 1100.

[0054] If another portion of the tubing away from the tubing anchor 1100, or another medical device coupled to the first end 115 of the tubing, is pulled, the tape or adhesive engagement to the tubing anchor 1100 can resist separation of the tubing from the patient. In some cases, the tubing anchor 1100 can allow another portion of the medical fluid extension set system, such as the fluid coupling device 2100, to deflect or move relative to the tubing anchor 1100.

[0055] 10-17 illustrate additional embodiments of a medical fluid extension set system having at least some of the features described in this disclosure with reference to the medical fluid extension set system 100. Features of the embodiments disclosed with reference to FIGS. 10-17 are consistent features described in other parts of this disclosure and include like reference numerals for clarity and brevity.

[0056] Additional embodiments include, but are not limited to, a medical fluid extension set system in which the tubing anchor is attached to the tubing at a location upstream from the fluid connector 20. The fluid connector 20 can be configured as a connector having separable first and second portions, where the first and second portions can form either a needleless connector and / or a luer connection therebetween. The first portion of the fluid connector can be formed as a male luer connector, and the second portion of the fluid connector can be formed as a needleless connector, where the first and second portions can be removably coupled together. In some embodiments of the present disclosure, either the first or second portion of the fluid connector can be formed as a female luer connector. In some examples of the present disclosure, the medical fluid extension set system can include two or more fluid connectors 20.

[0057] 10 and 11 show embodiments of medical fluid extension set systems 200, 300 including a tubing anchor 1100 and a fluid coupling device 2100, where the tubing anchor 1100 is fluidly coupled to the tubing at a location upstream from a portion of the fluid connector 20.

[0058] To fluidly couple the medical fluid extension set system 200, 300 upstream from a portion of the fluid connector, the medical fluid extension set system 200, 300 is configured to have a fluid coupling device 2100 and a first portion 21 of the fluid connector fluidly coupled together.

[0059] The first portion 21 of the fluid connector is configured to be fluidly coupled to the second portion 23 of the fluid connector such that the tubing anchor 1100 is upstream from the second portion 23 of the fluid connector. For example, when the medical fluid extension set system 200, 300 is coupled between an IV set and a catheter, the tubing anchor 1100 is upstream from the second portion 23 of the fluid connector and the catheter is downstream of the second portion 23 of the fluid connector.

[0060] 10, the medical fluid extension set system 200 is configured with a tubing anchor 1100 coupled or integral with the first portion 21 of the fluid connector. In FIG. 11, the medical fluid extension set system 300 is shown with the tubing anchor 1100 spaced apart from the first portion 21 of the fluid connector.

[0061] The medical fluid extension set systems 200, 300 can reduce or prevent the fluid connector, or the portions of the fluid connector 21, 23, from causing pressure points against the patient's body. The medical fluid extension set system 200 having an integrated tubing anchor 1100 and the first portion 21 of the fluid connector can reduce the length of the medical fluid extension set system 200 compared to a medical fluid extension set system having the tubing anchor 1100 spaced apart from the first portion 21 of the fluid connector.

[0062] In some embodiments of the present disclosure, the fluid coupling device 2100 can be coupled to the tubing 22 of the IV set, and the second portion 23 of the fluid connector can be coupled to the catheter such that the medical fluid extension set system 200, 300 is fluidly coupled between the IV set and the catheter.

[0063] To fluidly couple the medical fluid extended set system 200, 300 between the IV set and the catheter, the medical fluid extended set system 200, 300 includes a second portion 24 of the fluid connector upstream from the fluid coupling device 2100. The second portion 24 of the fluid connector can be coupled to the first portion 25 of the fluid connector of the IV set. Thus, the medical fluid extended set system 200, 300 can be separated or disconnected from between the first portion 25 of the fluid connector of the IV set and the second portion 23 of the fluid connector. In some aspects of the present disclosure, when the medical fluid extended set system 200, 300 is separated or disconnected from between the IV set and the second portion 23 of the fluid connector, the first portion 25 of the fluid connector of the IV set can be directly coupled to the second portion 23 of the fluid connector.

[0064] In some embodiments of the present disclosure, the tubing anchor 1100 and the fluid coupling device 2100 may be separately coupleable to the tubing 16 between the tubing 22 and the catheter of the IV set. An example of a medical fluid extension set system 400 having a fluid coupling device 2100 and a tubing anchor 1100 fluidly coupled together by the tubing 16 is shown in FIG.

[0065] A first end 115 of the tubing is coupled to a second portion 23 of the fluid connector, which is configured to fluidly couple with a fluid coupling device 2100. A second end 117 of the tubing is configured to fluidly couple with a catheter or another portion of a fluid pathway. A tubing anchor 1100 is coupled to the tubing between the first end 115 and the second end 117 of the tubing.

[0066] The configuration of the medical fluid extension set system 400 provides for the fluid coupling device 2100 to be positioned upstream from the second portion 23 of the fluid connector and the tubing anchor 1100 and the catheter to be positioned downstream from the second portion 23 of the fluid connector. The features of the medical fluid extension set system 400 also reduce the length of the system 400 compared to a medical fluid extension set system having the tubing anchor 1100 positioned between the fluid coupling device 2100 and the second portion 23 of the fluid connector.

[0067] In some aspects of the disclosure, the medical fluid extension set system 400 can be coupled to an existing IV set by disconnecting the upstream and downstream portions of the fluid connector, e.g., by disconnecting the second portion 24 of the fluid connector from the second portion 23 of another fluid connector. The fluid coupling device 2100 can be inserted and coupled between the upstream and downstream portions of the fluid connector. The tubing anchor 1100 can be coupled to a length of tubing downstream from the second portion 23 of the fluid connector, e.g., between the second portion 23 of the fluid connector and the catheter.

[0068] In any embodiment of the present disclosure, the tubing anchor can be coupled or integral to the fluid coupling device such that the tubing anchor and the fluid coupling device are movable relative to each other. Figure 13 shows an example of one embodiment of a medical fluid extension set system 500 having a tubing anchor 1101 coupled or integral to a fluid coupling device 2102.

[0069] The tubing anchor 1101 and the fluid coupling device 2102 are coupled together such that either the tubing anchor 1101 or the fluid coupling device 2102 can move in one or more directions relative to one another. The movement between the tubing anchor 1101 and the fluid coupling device 2102 can be a rotational movement in at least one direction or along at least one plane.

[0070] To allow movement between the tubing anchor 1101 and the fluid coupling device 2102, the medical fluid extension set system 500 can include structures that form a joint or hinge between the tubing anchor 1101 and the fluid coupling device 2102. In some embodiments of the present disclosure, either the tubing anchor 1101 or the fluid coupling device 2102 can include a slot, channel, or groove configured to receive a portion of a ridge or post of the other of the tubing anchor 1101 and the fluid coupling device 2102, thereby allowing the tubing anchor 1101 and the fluid coupling device 2102 to pivot, rotate, or slide relative to one another. In any embodiment of the present disclosure, one or more structures that join or couple the tubing anchor 1101 and the fluid coupling device 2102 together can form a pivotal coupling between the tubing anchor 1101 and the fluid coupling device 2102.

[0071] Movement between the tubing anchor 1101 and the fluid coupling 2102 can be relative to an axis aa that extends through the fluid coupling 2102 and the tubing anchor 1101. The fluid coupling 2102 can pivot about the tubing anchor 1101 by rotating the fluid coupling 2102 about the axis aa. In some embodiments, the direction of movement between the tubing anchor 1101 and the fluid coupling 2102 can be relative to a longitudinal axis bb that extends through opposite ends of the fluid coupling 2102, the longitudinal axis bb being transverse to the longitudinal axis aa.

[0072] When the medical fluid extension set system 500 is coupled to a patient with the tubing anchor 1101 engaged or affixed to the patient, pivoting the fluid coupling device 2102 about axis aa rotates the fluid coupling device 2102 about axis aa, thereby moving the fluid coupling device 2102 away from or toward the patient. In embodiments where the pivot coupling is configured to move the fluid coupling device 2102 about the longitudinal axis bb, the fluid coupling device 2102 can rotate or twist about the longitudinal axis bb.

[0073] Movement between the tubing anchor 1101 and the fluid coupling device 2102 can resist bending loads being transferred to the anchor that could otherwise act to pull the anchor away from the patient. For example, if the tubing 22 of an IV set coupled to the fluid coupling device 2102, or the fluid coupling device 2102 itself, is pulled away from the patient, the fluid coupling device 2102 can pivot or rotate about axis aa and away from the patient, like a lever rotating about a fulcrum. In another example, the fluid coupling device 2102 can rotate about a longitudinal axis bb, which can resist transferring torsional stresses to the tubing anchor 1101, such as if the tubing 22 of an IV set coupled to the fluid coupling device 2102, or the fluid coupling device 2102 itself, is twisted.

[0074] 14 and 15, an embodiment of a medical fluid extension set system 600, 700 is shown having a fluid coupling device 2100 fluidly coupled to a length of tubing 16 and a tubing anchor 1100 coupled to the tubing 16.

[0075] 14 illustrates an embodiment of the medical fluid extension set system 600 with the tubing anchor 1100 and fluid coupling device 2100 positioned at a distal end of the medical fluid extension set system 600. To position the tubing anchor 1100 and fluid coupling device 2100 at the distal end of the medical fluid extension set system, the first end 115 of the tubing is fluidly coupled to the fluid coupling device 2100, and the tubing anchor 1100 is coupled to a portion of the tubing 16 adjacent to and extending from the first end 115 of the tubing.

[0076] In some embodiments of the present disclosure, the first end 115 of the tubing is coupled to either the first end 1120 or the second end 1122 of the tubing anchor 1100, and the other of the first end 1120 or the second end 1122 of the tubing anchor 1100 is coupled to the fluid coupling device 2100. When the tubing is coupled to the tubing anchor 1100, the tubing passageway 1104 of the tubing anchor can form a portion of a fluid pathway therethrough.

[0077] 15 illustrates one embodiment of a medical fluid extension set system 700, where the tubing anchor 1100 and the fluid coupling device 2100 are spaced apart along the tubing 16 such that the tubing anchor 1100 is positioned at a distal end and the fluid coupling device 2100 is positioned at a proximal end of the medical fluid extension set system 700. To position the tubing anchor 1100 and the fluid coupling device 2100 at the proximal and distal ends, respectively, of the medical fluid extension set system, a first end 115 of the tubing is fluidly coupled to the fluid coupling device 2100, and the tubing anchor 1100 is coupled to a portion of the tubing 16 adjacent to and extending from a second end 117 of the tubing.

[0078] FIG. 16 illustrates an embodiment of the medical fluid extension set system 800 in which the tubing anchor 1100 is positioned upstream from the fluid coupling device 2100 such that the fluid coupling device 2100 is positioned between the catheter and the tubing anchor 1100.

[0079] The medical fluid extension set system 800 is configured such that the tubing anchor 1100 can resist separation of the medical fluid extension set system 800 from the patient when the tubing 16, or another portion of the medical fluid extension set system 800, or a portion of the IV set, is pulled in a direction DX away from the tubing anchor or the patient. However, if the tubing anchor is separated from the patient due to the force caused by the pulling, the fluid coupling device 2100 is configured to sever the fluid path. Thus, in some embodiments of the present disclosure, the severing force of the fluid coupling device 2100 is less than the anchoring force of the tubing anchor 1100 against the skin of the patient. In some aspects of the present disclosure, the severing force of the fluid coupling device 2100 is less than the anchoring force of the catheter to the patient. In some embodiments, the severing force of the fluid coupling device 2100 is approximately 1 to 2 pounds.

[0080] Features of the medical fluid extension set system 800 can reduce the occurrence of a disconnection event for forces less than the fixation strength of the tubing anchor 1100, thereby ensuring that the fluid coupling device 2100 only separates after the first fixation part, for example the tubing anchor 1100, has been separated from the patient.

[0081] To provide controlled support of the fluid coupling device 2100 or a portion thereof after the tubing anchor 1100 is separated from the patient, the medical fluid extension set system 900 can be configured with the fluid coupling device 2100 positioned between a first tubing anchor 1100 and a second tubing anchor 1103, as shown in FIG. 17.

[0082] The medical fluid extension set system 900 can include an anchoring adhesive configured to affix the first tubing anchor 1100 and the second tubing anchor 1103 to the patient. The anchoring adhesive can be shaped with a cutout or with a shape that forms a window so that the anchoring adhesive does not extend between the patient and the fluid coupling device 2100. In some aspects of the present disclosure, a first anchoring adhesive 27-1 and a second anchoring adhesive 27-2 are provided to affix the first tubing anchor 1100 and the second tubing anchor 1103 to the patient, respectively.

[0083] To maintain the position of the first and second fixing adhesives relative to one another, the medical fluid extension set system 900 may include a film overlay 28 configured to extend across at least the first tubing anchor 1100 and the second tubing anchor 1103.

[0084] The medical fluid extension set system 900 is configured such that the second tubing anchor 1103 can be separated from the patient before the first tubing anchor 1100. To allow the second tubing anchor 1103 to be separated from the patient before the first tubing anchor 1100, the second tubing anchor 1103 can be smaller than the first tubing anchor 1100. When the second tubing anchor 1103 separates, the first and second portions of the fluid coupling device 2100 can separate to sever the fluid path between the first tubing anchor 1100 and the second tubing anchor 1103. After the fluid coupling device 2100 is separated, the first fixation adhesive 27-1 can hold the first tubing anchor 1100 coupled to the patient.

[0085] To allow for disconnection of the fluid pathway after separation of the second tubing anchor 1103 and before separation of the first tubing anchor 1100, the disconnect force of the fluid coupling device 2100 is less than the fastening force of the tubing anchor 1100 against the patient's skin. In some embodiments, the disconnect force of the fluid coupling device 2100 is approximately 1-2 pounds. Referring now to FIG. 18, a fluid coupling device 2100 according to an aspect of the present disclosure is shown. The fluid coupling device 2100 includes a first valve assembly 2110 and a second valve assembly 2210. The first valve assembly 2110 and the second valve assembly 2210 may be coupled together by inserting a portion of the second valve assembly 2210 into the first valve assembly 2110. When the first valve assembly 2110 and the second valve assembly 2210 are coupled together, a fluid pathway is formed through the fluid coupling device 2100.

[0086] If either the first valve assembly 2110 and the second valve assembly 2210 are pulled away from each other, such as when a pulling or tension force on the fluid coupling device 2100 exceeds a threshold value, the first valve assembly 2110 and the second valve assembly 2210 can separate from each other. As shown in Figures 19A and 19B, when the first valve assembly 2110 and the second valve assembly 2210 separate from each other, the respective first valve assembly 2110 and the second valve assembly 2210 can resist the flow of fluid therethrough. In some embodiments of the present disclosure, each of the first valve assembly 2110 and the second valve assembly 2210 can resist the flow of fluid by blocking a fluid passageway through their respective assembly.

[0087] The first valve assembly 2110 includes a housing 2112 having an internal cavity and a compressible valve 2114 positioned within the cavity. When the first valve assembly 2110 is not mated with the second valve assembly 2210 or other mating connector, the compressible valve 2114 is in a first position and the fluid passageway through the first valve assembly 2110 is blocked by the compressible valve 2114, resisting fluid flow through the fluid passageway of the first valve assembly 2110.

[0088] When the first valve assembly 2110 is coupled with the second valve assembly 2210, the compressible valve 2114 is moved to the second position and the fluid passage through the first valve assembly 2110 is unblocked, reducing resistance to fluid flow through the fluid passage of the first valve assembly 2110.

[0089] The second valve assembly 2210 includes a body 2212 having an inner bore and a valve plug 2214 positioned in the bore 2220. When the first valve assembly 2110 is not coupled to the second valve assembly 2210, the fluid passageway through the second valve assembly 2210 is blocked by the valve plug 2214.

[0090] When the first valve assembly 2110 and the second valve assembly 2210 are coupled together, a portion of the first valve assembly 2110 moves or biases the valve plug 2214 to fluidly couple the fluid passage through the first valve assembly 2110 and the fluid passage through the second valve assembly 2210.

[0091] A cross-sectional view of the fluid coupling device 2100 is shown in Figures 20 and 21. The first valve assembly 2110 includes a housing 2112 having a first end 2116 and a second end 2118. The inner surface of the housing 2112 forms a cavity 2119 that extends through the second end 2118 toward the first end 2116 of the housing.

[0092] The first valve assembly 2110 also includes a post 2120 that extends into the cavity and forms at least a portion of a fluid passageway through the first valve assembly 2110. The post includes a proximal end portion 2122 and a distal end portion 2242124, the distal end portion 2242124 of the post extending into the cavity in a direction from the housing first end 2116 toward the housing second end 2118. In some embodiments of the present disclosure, the proximal end portion 2122 of the post is coupled with the housing first end 2116 such that the fluid passageway 2126 of the first valve assembly 2110 extends through the housing first end 2116 and the post 2120.

[0093] The post 2120 includes an inner surface that forms a fluid passageway 2126 that extends through the proximal end portion 2122 and the distal end portion 2242124 of the post. At the distal end portion 2242124 of the post, the fluid passageway 2126 extends through an opening in the distal end 2127 of the post. In some embodiments of the present disclosure, the opening for the fluid passageway is positioned at a location spaced from the distal end 2127 of the post.

[0094] In some embodiments of the present disclosure, the post 2120 can be configured as a needle that extends into the cavity and forms at least a portion of the fluid passageway through the first valve assembly 2110. The post 2120 can be integrally formed with the housing 2112 or another portion of the first valve assembly 2110, or the post 2120 can be coupled to the housing 2112 or another portion of the first valve assembly 2110. In some embodiments, the post 2120 is formed from a material including either a polymer and / or a metal.

[0095] In some aspects of the disclosure, the housing 2112 defines a boss 2128 extending from the first end 2116 of the housing in a direction away from the second end 2118 of the housing. The boss 2128 can include a portion of the fluid passageway 2126 of the first valve assembly 2110. The cross-sectional width of the fluid passageway 2126 extending through the boss 2128 can be configured as a mating pocket such that an end of tubing can be positioned or inserted into the fluid passageway 2126. In some embodiments of the disclosure, the cross-sectional width of the fluid passageway 2126 extending through the boss 2128 is approximately equal to or greater than the cross-sectional width of the tubing. In some embodiments, the tubing can be coupled to the first valve assembly 2110 using either an interference fit and / or creating a joint between the first valve assembly 2110 and the tubing.

[0096] The compressible valve 2114 is positioned within the cavity and configured to resist fluid flow through the fluid passageway 2126 when the compressible valve 2114 is in the first position. Fluid flow through the fluid passageway 2126 is resisted by a portion of the compressible valve 2114 positioned between the distal end 2127 of the post and the second end 2118 of the housing when the compressible valve 2114 is in the first position.

[0097] The compressible valve 2114 includes a proximal end portion 2132 and a distal end portion 2134. The proximal end portion 2132 includes a resilient member having an inner surface that forms a recess 2136. The distal end portion 2134 includes a head 2138 that defines a distal end 2140 of the compressible valve 2114. The head 2138 includes a slit 2139 that extends through the head 2138 to the recess 2136.

[0098] Although the portion of the compressible valve 2114 that forms the resilient member is shown as a tube-shaped structure having accordion-shaped walls when viewed in cross section, the resilient member may be formed as any structure capable of biasing or directing the head 2138 toward the second end 2118 of the housing. In some embodiments of the present disclosure, the resilient member may be formed by a spring or arm positioned between the head 2138 and either the first end 2116 or the second end 2118 of the housing.

[0099] When the compressible valve 2114 is in the first position, the distal end 2140 of the compressible valve 2114 is aligned with the second end 2118 of the housing. In some embodiments of the present disclosure, when the compressible valve 2114 is in the first position, a common plane intersects the distal end 2140 of the compressible valve 2114 and the second end 2118 of the housing.

[0100] To resist the flow of fluid through the fluid passageway 2126, the first valve assembly 2110 is also configured such that the distal end portion 224 of the post engages against the head 2138, thereby occluding the fluid passageway 2126 of the post. In some embodiments of the present disclosure, the distal-most end of the post 2120 is positioned within a slit 2139 of the head. The head 2138 may include a hollow or concave inner surface extending from the recess 2136 towards the distal end 2140 of the compressible valve 2114. When the compressible valve 2114 is in the first position, the head 2138 engages against an opening of the fluid passageway through the post to resist the flow of fluid therethrough.

[0101] When the compressible valve 2114 is in the first position, the head 2138 of the compressible valve can also engage against a protrusion 2144 of the housing. The protrusion 2144 extends in a direction from the inner surface of the housing 2112 into the cavity. In some embodiments of the present disclosure, the protrusion 2144 is positioned at the second end 2118 of the housing and extends around the inner surface such that when the compressible valve 2114 moves towards the first position, e.g., when the head 2138 moves towards the second end 2118 of the housing, the head 2138 engages against the protrusion 2144.

[0102] In use, as the head 2138 moves toward the second end 2118 of the housing, engagement of the head 2138 with the protrusion 2144 can resist movement of the head 2138 in a direction from the first end 2116 toward the second end 2118 of the housing. Engagement of the head 2138 with the protrusion 2144 can also form a seal between the head 2138 and the housing 2112.

[0103] The first valve assembly 2110 is configured to couple with the second valve assembly 2210 by inserting a portion of the second valve assembly 2210 through the second end 2118 of the housing 2112 of the first valve assembly 2110. The first valve assembly 2110 and the second valve assembly 2210 can then be moved toward one another to fluidly couple the first valve assembly 2110 and the second valve assembly 2210.

[0104] 20 also illustrates a cross-sectional view of the second valve assembly 2210 separated and spaced apart from the first valve assembly 2110. The second valve assembly 2210 includes a body 2212 having a first end 2216 and a second end 2218. An inner surface of the body 2212 forms a bore 2220 that extends through the second end 2218 toward the first end 2216 of the body.

[0105] The body 2212 also includes a fluid passage 2226 extending through the body first end 2216 to the bore 2220. The valve plug 2214 is positioned in the bore 2220 and configured to block the fluid passage 2226 when the second valve assembly 2210 is not coupled with the first valve assembly 2110.

[0106] The valve plug 2214 includes a first end 2236, a second end 2238, and a slit 2240 extending through the valve plug first end 2236 and the second end 2238. The valve plug second end 2238 is aligned with the body second end 2218. In some embodiments of the present disclosure, a common plane intersects the valve plug second end 2238 and the body second end 2218.

[0107] In some embodiments of the present disclosure, the second end of the body 2212 extends radially inward in a direction toward the cavity. The radially inward extending portion of the body 2212 can engage the valve plug 2214 and resist movement of the valve plug 2214 from the bore 2220.

[0108] In some aspects of the present disclosure, the first end 2216 of the body defines a male luer 2242 structure that extends away from the second end 2218 and forms at least a portion of the fluid passageway 2226. In some embodiments of the present disclosure, the first ends 2116, 2216 of either the first valve assembly 2110 and the second valve assembly 2210 may include either a bond pocket, a female luer, and / or a male luer.

[0109] The body 2212 forms a wall 2244 configured to engage against a portion of the first valve assembly 2110 when the first and second valve assemblies 2110 are coupled together. The wall 2244 can be formed by a portion of the body 2212 extending away from the outer surface in a direction that is transverse to a longitudinal axis A22 extending between the first and second ends 2216, 2218 of the body. In some embodiments of the present disclosure, the wall 2244 can be formed by a portion of the outer surface of the body 2212 that is convex or concave relative to an adjacent portion of the outer surface of the body 2212.

[0110] The first valve assembly 2110 and the second valve assembly 2210 can be coupled together by inserting the second end 2218 of the body for the second valve assembly 2210 through an opening into a cavity in the second end 2118 of the housing for the first valve assembly 2110, as shown in FIG. 13.

[0111] When the body 2212 is inserted into the cavity and advanced towards the housing first end 2116, either the body second end 2218 and / or the valve plug second end 2238 engage against the compressible valve distal end 2140. When the second valve assembly 2210 is advanced towards the housing first end 2116, the resilient member formed by the compressible valve proximal end portion 2132 is compressed and the head moves towards the first end 2116. When the head 2138 moves towards the housing first end 2116, the post distal end portion 224 moves or penetrates through the head slit 2139 and the valve plug slit 2240.

[0112] The body 2212 is advanced toward the housing first end 2116 until the housing protrusion 2144 moves over and beyond the body wall 2244, such that the protrusion 2144 is positioned between the wall 2244 and the body first end 2216 when the first valve assembly 2110 and the second valve assembly 2210 are coupled together.

[0113] The distance between the wall 2244 and the second end 2218 of the body is configured to resist separation of the first valve assembly 2110 and the second valve assembly 2210 while maintaining a fluid pathway through the first valve assembly 2110 and the second valve assembly 2210. To resist separation and maintain the fluid pathway, the wall 2244 is spaced a distance D21 from the second end 2218 of the body, where the distance D22 is approximately equal to or greater than the sum of the length L21 of the slit 2139 and the length L22 of the slit 2240.

[0114] When the first valve assembly 2110 and the second valve assembly 2210 are coupled together, the opening through the distal end 2127 of the post is positioned between the valve plug 2214 and the first end 2216 of the body such that the fluid passage 2126 of the first valve assembly 2110 is fluidly coupled with the fluid passage 2226 of the second valve assembly 2210.

[0115] 22, the opening 2141 for the fluid passageway is positioned at a location spaced from the distal end 2127 of the post. The opening 2141 forms a portion of the fluid passageway 2126 that extends in a direction that is transverse to the longitudinal axis A22 formed by the fluid passageway 2126. For example, the opening 2141 in the distal end portion 224 of the post can form a portion of the fluid passageway 2126 that extends radially outward in a direction extending away from the longitudinal axis A22.

[0116] The opening can be spaced from the distal end 2127 of the post and can form a portion of a fluid passageway 2126 that extends in a direction aligned with or parallel to the longitudinal axis A22. In some cases, the distal end 2127 of the post has an outer surface that tapers to form a cross-sectional width that decreases in a direction from the proximal end portion 2122 to the distal end 2127 of the post, and the opening extends through the tapered outer surface.

[0117] In some embodiments of the present disclosure, the valve plug 2214 may include an inner surface that forms a recess 2241 that intersects with the slit 2240. When the first valve assembly 2110 and the second valve assembly 2210 are coupled together, the post of the first valve assembly 2110 may move through the slit 2240 and the recess 2241.

[0118] The recess extends into the first end 2236 of the valve plug in a direction toward the second end 2238 of the valve plug. The recess 2241 may also include a ridge extending from the inner surface into the recess in a direction toward the longitudinal axis A22. The ridge may be configured to engage against the post 2242124 of the first valve assembly 2110 to form a seal between the ridge of the valve plug 2214 and the post 2242124. When the post 2242124 is positioned through the valve plug 2214, the ridge may resist movement of fluid from the bore 2220 between the valve plug 2214 and the post 2242124.

[0119] 23, one embodiment of a fluid coupling device 2400 is shown in which a portion of a first valve assembly 2410 is received within a sleeve 2550 of a second valve assembly 2510 when the first and second valve assemblies 2410 and 2510 are coupled together. Features of the fluid coupling device 2400 that are similar to features described with reference to other embodiments herein will not be repeated here for clarity and brevity of the disclosure.

[0120] The fluid coupling device 2400 is shown in Figures 24A and 24B with the first valve assembly 2410 disconnected or separated from the second valve assembly 2510. The first valve assembly 2410 includes a protrusion 2460 that extends away from the outer surface of the housing 2412. When the first valve assembly 2410 and the second valve assembly 2510 are coupled together, the protrusion 2460 is inserted into a space between the inner surface of the sleeve 2550 and the outer surface of the body 2212.

[0121] A cross-sectional view of the fluid coupling device 2100 is shown in Figures 25 and 26. The first valve assembly 2410 includes a housing 2412 having a first end 2416 and a second end 2418. An inner surface of the housing 2412 forms a cavity that extends through the second end 2418 toward the first end 2416 of the housing.

[0122] The first valve assembly 2410 also includes a post 2420 that extends into the cavity and forms at least a portion of a fluid passageway through the first valve assembly 2410. The post 2420 includes a proximal end portion 2422 and a distal end portion 2424, with the distal end portion 2424 of the post extending into the cavity in a direction from the first end 2416 toward the second end 2418 of the housing.

[0123] The post 2420 includes an inner surface that forms a fluid passageway 2426 that extends through a proximal end portion 2422 and a distal end portion 2424 of the post. At the distal end portion 2424 of the post, the fluid passageway 2426 extends through an opening 2421 spaced from the distal end 2427 of the post. In some embodiments of the present disclosure, the opening 2421 extends through a portion of the post that has an outer surface that tapers to form a cross-sectional width that decreases in a direction away from the proximal end portion 2422.

[0124] A compressible valve 2414 is positioned within the cavity and configured to occlude the fluid passageway 2426 when the compressible valve 2414 is in the first position. The compressible valve 2414 includes a proximal end portion 2432 and a distal end portion 2434. Similar to the compressible valve 2114 disclosed with reference to Figures 20 and 21, the proximal end portion 2432 comprises a resilient member and the distal end portion 2434 comprises a head 2438 having a slit extending therethrough to a recess in the resilient member.

[0125] In some embodiments of the present disclosure, the head 2438 comprises an inner surface that forms part of a recess extending from the proximal end portion 2432 towards the distal end portion 2434 of the compressible valve. The recess along the head 2438 can be configured such that the head engages against the post to occlude the opening 2421 when the compressible valve is in the first position.

[0126] The portion of the recess along the head 2438 is formed by an inner surface having a cross-sectional width approximately equal to the cross-sectional width of the outer surface of the post distal end portion 2424. In some embodiments of the present disclosure, the portion of the recess along the head 2438 can have a cross-sectional width that tapers to form a decreasing width in a direction from the proximal end portion 2432 towards the distal end 2440 of the head 2438.

[0127] For engagement with the post, a first portion 2450 of the recess can have a cross-sectional width W1 approximately equal to the cross-sectional width of the outer surface of the post located between the proximal end portion 2432 and the opening 2421. A second portion 2452 of the recess, located between the first portion 2450 of the recess and the distal end 2440 of the head, can have a cross-sectional width W2 approximately equal to the cross-sectional width of the outer surface of the post located between the opening 2421 and the distal end 2427 of the post.

[0128] When the compressible valve 2414 is in the first position, the head 2438 is positioned such that the distal end portion 2424 of the post is within the recess in the head, resisting fluid flow through the passageway 2426 and the opening 2421 in the post.

[0129] In some embodiments of the present disclosure, when the compressible valve 2414 is in the first position, the inner surface of the head along the first portion 2450 of the recess engages against a portion of the post between the proximal end portion 2432 and the opening 2421, and the inner surface of the head along the second portion 2452 of the recess engages against a portion of the post between the opening 2421 and the distal end 2427 of the post.

[0130] When the compressible valve 2414 is in the first position, the head 2438 of the compressible valve can also engage against a ledge 2425 of the housing. The ledge 2425 terminates in a direction from the inner surface of the housing 2412 into the cavity. In some embodiments of the present disclosure, the ledge 2425 is formed by a portion of the inner surface of the housing having a cross-sectional width that tapers in a direction from the first end 2416 towards the second end 2418 of the housing.

[0131] As the compressible valve 2414 moves towards the first position, an outer surface of the head 2438 can engage against the ledge 2425. In some embodiments of the present disclosure, the outer surface of the head 2438 defines a cross-sectional width of the head that tapers such that the cross-sectional width decreases in a direction towards the distal end 2440 of the head.

[0132] The housing 2412 also includes a protrusion 2460 configured to engage against the second valve assembly 2510 when the first valve assembly 2410 and the second valve assembly 2510 are coupled together. The protrusion 2460 can be formed by a portion of the housing 2412 extending away from the outer surface in a direction that is transverse to a longitudinal axis A21 extending between the first end 2416 and the second end 2418 of the housing. In some embodiments of the present disclosure, the protrusion 2460 can be formed by a portion of the outer surface of the housing 2412 that is convex or concave relative to an adjacent portion of the outer surface of the housing 2412.

[0133] The protrusion 2460 is positioned at the housing second end 2418, and the ledge 2425 is spaced apart from the protrusion 2460 along the longitudinal axis A21. In some aspects of the disclosure, the distal end 2427 of the post is positioned longitudinally between the ledge 2425 and the protrusion 2460.

[0134] The protrusion 2460 is configured to engage the second valve assembly 2510 to resist unintentional separation of the first valve assembly 2410 and the second valve assembly 2510 from one another. The second valve assembly 2510 may include a body 2512 having an inner bore and a valve plug 2514 positioned within the bore 2520. When the first valve assembly 2410 is not coupled with the second valve assembly 2510, the valve plug 2514 blocks the fluid passageway through the second valve assembly 2510.

[0135] In some embodiments of the present disclosure, the valve plug 2514 includes a groove 2515 extending in an outer surface between the first and second ends of the valve plug. The groove 2515 can extend around the circumference of the valve plug in a direction toward the longitudinal axis A22 of the second valve assembly 2510. In some aspects, the groove 2515 can allow the valve plug 2514 to flex or bias as the post 2424 moves through the valve plug 2514.

[0136] To resist unintentional separation of the first valve assembly 2410 and the second valve assembly 2510 from one another, the second valve assembly 2510 includes a sleeve 2550. The sleeve extends along an outer surface of the body 2512 in a direction from the first end 2516 toward the second end 2518 of the body. In some embodiments, the sleeve 2550 extends in a direction parallel to a longitudinal axis A22 extending between the first end 2516 and the second end 2518 of the body.

[0137] The sleeve 2550 is spaced from the body 2512 to allow for insertion of a portion of the first valve assembly 2410 therebetween. An inner surface of the sleeve 2550 and an outer surface of the body 2512 define a space between the sleeve 2550 and the body 2512.

[0138] When a portion of the first valve assembly 2410 is positioned between the sleeve 2550 and the body 2512, the engagement of the sleeve 2550 and the housing 2412 relative to one another can resist unintentional separation of the first valve assembly 2410 and the second valve assembly 2510 from one another.

[0139] The portion of the sleeve 2550 that engages against the housing 2412 can include a wall 2544. The wall 2544 extends away from the inner surface of the sleeve in a direction toward the outer surface of the body 2512. In some embodiments of the present disclosure, the distal end of the wall is spaced from the outer surface of the body 2512 by a distance D23. If the distance D23 is less than the thickness T21 of the distal end of the housing 2412, the sleeve can bend or biased away from the outer surface of the body 2512 when the second end 2418 of the housing 2412 is inserted between the sleeve 2550 and the body 2512.

[0140] A cross-sectional view of the first valve assembly 2410 and the second valve assembly 2510 coupled together is shown in Figure 26. When the body 2512 is inserted into the cavity of the housing 2412 and advanced towards the first end 2416 of the housing, either the second end 2518 of the body and / or the second end 2538 of the valve plug engage against the distal end 2440 of the compressible valve 2414.

[0141] As the body 2512 and housing 2412 move toward one another, the housing second end 2418 moves into the space between the sleeve 2550 and the outer surface of the body 2512. The body 2512 and housing 2412 are then moved further toward one another until the protrusion 2460 is positioned between the wall 2544 and the body first end 2516, such that engagement of the protrusion 2460 with the wall 2544 resists unintentional separation of the first valve assembly 2410 and the second valve assembly 2510 from one another.

[0142] When the body 2512 is inserted into the cavity of the housing 2412 and advanced toward the first end 2416 of the housing, the fluid passage 2426 of the housing is fluidly coupled with the fluid passage 2526 of the body when the body 2512 is advanced into the housing 2412 a distance such that the opening 2421 through the distal end portion of the post is positioned between the valve plug 2514 and the first end 2516 of the body.

[0143] In some embodiments of the present disclosure, the distal end 2427 of the post is positioned longitudinally between the ledge 2425 and the protrusion 2460 such that when the first valve assembly 2410 and the second valve assembly 2510 are coupled together, the opening 2421 through the distal end portion of the post is positioned between the valve plug 2514 and the first end 2516 of the body.

[0144] When the first valve assembly 2410 and the second valve assembly 2510 are coupled together, a fluid path of the fluid coupling device 2400 is formed by the fluid passageway 2426 of the first valve assembly 2410 and the fluid passageway 2526 of the first valve assembly 2510. When the first valve assembly 2410 and the second valve assembly 2510 are disconnected or separated from one another, the compressible valve 2414 moves to an unconstrained position such that the head 2438 blocks or resists fluid flow through the post and the valve plug 2514 resists fluid flow through the fluid passageway 2526.

[0145] Examples of the subject matter as terms The subject technology is exemplified according to various aspects, for example, as described below. Various examples of aspects of the subject technology are described as numbered clauses (1, 2, 3, etc.) for convenience. These are provided as examples and are not intended to limit the subject technology. It should be noted that any of the dependent claims may be combined in any combination and placed in a respective independent claim, for example, clause 1 or clause 5. Other clauses may also be presented similarly.

[0146] Item 1. A medical fluid extension set system comprising: tubing having a first end and a second end; a fluid coupling device coupled to the first end of the tubing; and a tubing anchor coupled to the tubing between the first end and the second end of the tubing.

[0147] Item 2. A medical fluid extension set system as described in item 1, wherein the fluid coupling device comprises a first valve assembly and a second valve assembly, the first valve assembly and the second valve assembly being removably coupled together to form a fluid flow path through the tubing and the fluid coupling device.

[0148] Item 3. The medical fluid extension set system of item 1, further comprising a catheter coupled to the second end of the tubing.

[0149] Item 4. The medical fluid extension set system of item 1, wherein the length of the tubing between the anchor and the second end of the tubing is greater than the distance between the anchor and the second end of the tubing.

[0150] Item 5. The medical fluid extension set system of item 1, wherein the tubing anchor is coupled to the tubing such that movement of the tubing anchor along the length of the tubing between the first end and the second end of the tubing is resisted.

[0151] Item 6. The medical fluid extension set system of item 1, wherein a portion of the tubing between the anchor and the second end of the tubing includes a nonlinear shape when the portion of the tubing is not biased.

[0152] Item 7. The medical fluid extension set system of item 1, wherein a portion of the tubing between the anchor and the second end of the tubing comprises a bellows.

[0153] Item 8. The medical fluid extension set system of item 1, further comprising an adhesive layer extending along an outer surface of the tubing anchor.

[0154] Item 9. The medical fluid extension set system of item 8, wherein the tubing anchor has an upper surface defining a first surface area, and the adhesive layer defines a second surface area, the second surface area being greater than the first surface area.

[0155] Item 10. The medical fluid extension set system of item 1, wherein the tubing anchor comprises an anchor body having a first end, a second end, a first sidewall, a second sidewall, a top end, a bottom end, and a tubing passage extending through the first end and the second end and defining a longitudinal axis of the anchor body.

[0156] Item 11. A medical fluid extension set system as described in Item 10, wherein the tubing anchor has a width between a first side wall and a second side wall, and the width of the tubing anchor decreases in a direction from the first end of the tubing anchor to the second end of the tubing anchor.

[0157] Item 12. The medical fluid extension set system of item 11, wherein the tubing extends through the tubing anchor such that the second end of the tubing anchor is oriented toward the fluid coupling device.

[0158] Item 13. A medical fluid extension set system as described in Item 10, wherein the first sidewall has a front portion and a rear portion, the front portion and the rear portion of the first sidewall extending away from the longitudinal axis and intersecting at an apex of the first sidewall, and the second sidewall has a front portion and a rear portion, the front portion and the rear portion of the second sidewall extending away from the longitudinal axis and intersecting at an apex of the second sidewall.

[0159] Item 14. The medical fluid extension set system of item 13, wherein the width of the tubing anchor between the apexes of the first side wall and the second side wall is greater than the height of the tubing anchor between the top end and the bottom end.

[0160] Item 15. A medical fluid extension set system as described in Item 13, wherein a first length of the tubing anchor extending from the apex of the first side wall to the apex of the second side wall and along the second end of the tubing anchor is longer than a second length of the tubing anchor extending from the apex of the first side wall to the apex of the second side wall and along the first end of the tubing anchor.

[0161] Item 15. The medical fluid extension set system of item 1, wherein a fluid connector is coupled to the second end of the tubing, and a portion of the fluid connector is coupled to the tubing anchor.

[0162] Item 16. The medical fluid extension set system according to item 15, wherein the fluid connector is movable relative to the tubing anchor.

[0163] Item 17. The medical fluid extension set system of item 1, further comprising a fluid connector coupled between the first end of the tubing and the fluid coupling device.

[0164] Item 18. The medical fluid extension set system described in item 1, wherein the fluid coupling device is pivotally coupled to the tubing anchor.

[0165] Item 19. The medical fluid extension set system described in Item 1, further comprising another tubing having a first end coupled to the fluid coupling device, and another tubing anchor coupled to the another tubing, the fluid coupling device being fluidly coupled between the tubing anchor and the another tubing anchor.

[0166] Item 20. A fluid coupling device includes a first valve assembly, the housing having a first end, a second end opposite the first end, and an inner surface forming a cavity extending through the second end toward the first end of the housing; a post having a proximal end portion and a distal end portion, the distal end portion of the post extending into the cavity in a direction from the first end of the housing toward the second end of the housing; a fluid passage extending through the first end of the housing and the post; and a compressible valve positioned in the cavity, the compressible valve having a proximal end portion and a distal end portion, the proximal end portion comprising a resilient member having an inner surface forming a recess, the distal end portion comprising a head. Item 1. The medical fluid extension set system of item 1, comprising: a first valve assembly comprising a compressible valve having a head having a slit extending through the head to a recess; and a second valve assembly comprising a body having a first end, a second end opposite the first end, an inner surface forming a bore extending through the second end toward the first end of the body, and a fluid passage extending through the first end of the body to the bore; and a valve plug positioned within the bore, the valve plug having a first end, a second end, and a slit extending through the first end and the second end of the valve plug.

[0167] Item 21. The medical fluid extended set system of item 20, wherein when the first valve assembly and the second valve assembly are separated from each other, the compressible valve is in a first position, the distal end of the head is aligned with the second end of the housing and the distal end portion of the post is positioned within the recess, and when the first valve assembly and the second valve assembly are coupled together, the second end of the body is positioned within the cavity of the housing, whereby the compressible valve is in a second position, the head is urged toward the first end of the housing and the distal end portion of the post extends through the slit in the head of the compressible valve and the slit in the valve plug, whereby the fluid passage of the first valve assembly is fluidly coupled with the fluid passage of the second valve assembly.

[0168] Item 22. A method of providing a medical fluid extension set system, the method comprising: providing tubing having a first end and a second end, the first end including a fluid coupling device; and coupling a tubing anchor to the tubing such that the tubing anchor is positioned between the first end and the second end of the tubing.

[0169] Clause 23. The method of clause 22, wherein coupling the tubing anchor to the tubing includes inserting the tubing through a tubing passage extending through the first end of the tubing anchor and the second end of the tubing anchor.

[0170] Clause 24. The method of clause 22, further comprising joining the tubing anchor to the tubing such that movement of the tubing anchor along the length of the tubing between the first end and the second end of the tubing is resisted.

[0171] Clause 25. The method of clause 22, further comprising coupling a catheter to the second end of the tubing.

[0172] Clause 26. The method of clause 22, wherein the length of tubing between the anchor and the second end of the tubing includes a nonlinear shape such that the length of tubing between the anchor and the second end of the tubing is greater than the distance between the anchor and the second end of the tubing.

[0173] Clause 27. The method of clause 22, further comprising providing an adhesive layer configured to engage an outer surface of the tubing anchor and a patient.

[0174] Further considerations In some embodiments, any of the clauses herein may depend on any one of the independent claims or any one of the dependent claims. In an aspect, any of the clauses (e.g., dependent or independent claims) may be combined with any other clause or clauses (e.g., dependent or independent claims). In an aspect, a claim may include some or all of the words (e.g., steps, operations, means, or components) recited in a clause, sentence, phrase, or paragraph. In an aspect, a claim may include some or all of the words recited in one or more clauses, sentences, phrases, or paragraphs. In an aspect, some of the words in each clause, sentence, phrase, or paragraph may be deleted. In an aspect, additional words or elements may be added to a clause, sentence, phrase, or paragraph. In an aspect, the subject technology may be implemented without utilizing some of the components, elements, functions, or operations described herein. In an aspect, the subject technology may be implemented with additional components, elements, functions, or operations.

[0175] This disclosure is provided to enable any person skilled in the art to practice the various aspects described herein. This disclosure provides various examples of the subject technology, and the subject technology is not limited to these examples. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects.

[0176] Reference to a singular element is intended to mean "one or more" and not "one and only one" unless specifically stated otherwise. The term "some" refers to one or more, unless specifically stated otherwise. Masculine pronouns (e.g., his) include feminine and neuter (e.g., her and its) and vice versa. Headings and subheadings, if any, are used for convenience only and are not intended to limit the invention.

[0177] The word "exemplary" is used herein to mean "serving as an example or illustration." Any aspect or design described herein as "exemplary" is not necessarily to be construed as preferred or useful over other aspects or designs. In one aspect, various alternative configurations and operations described herein can be considered at least equivalent.

[0178] A phrase such as "aspect" does not imply that such aspect is essential to the subject technology or that such aspect applies to all configurations of the subject technology. Disclosure regarding an aspect may apply to all configurations, or to one or more configurations. An aspect may provide one or more examples. A phrase such as an aspect may refer to one or more aspects, and vice versa. A phrase such as "embodiment" does not imply that such an embodiment is essential to the subject technology or that such an embodiment applies to all configurations of the subject technology. Disclosure regarding an embodiment may apply to all embodiments, or to one or more embodiments. An embodiment may provide one or more examples. A phrase such as an embodiment may refer to one or more embodiments, and vice versa. A phrase such as "configuration" does not imply that such a configuration is essential to the subject technology or that such a configuration applies to all configurations of the subject technology. Disclosure regarding a configuration may apply to all configurations, or to one or more configurations. A configuration may provide one or more examples. A phrase such as "a configuration" may refer to one or more configurations, and vice versa.

[0179] In one aspect, unless otherwise specified, all measurements, values, ratings, positions, dimensions, sizes, and other specifications set forth in this specification, including the claims that follow, are approximate and not exact, and are intended to have a reasonable range consistent with the function to which they relate and that which is customary in the art to which they pertain.

[0180] In one aspect, a term such as "coupled" may refer to being directly coupled. In another aspect, a term such as "coupled" may refer to being indirectly coupled.

[0181] Terms such as "upper," "lower," "front," "rear," and the like, as used in this disclosure, should be understood to refer to any frame of reference other than the usual frame of reference of gravity. As such, top, bottom, front, and rear surfaces may extend upward, downward, diagonally, or horizontally in the frame of reference of gravity.

[0182] Various items may be arranged differently (e.g., placed in a different order or partitioned in a different way) without all departing from the scope of the subject technology. All structural and functional equivalents to the elements of the various embodiments described throughout this disclosure that are known or later become known to those of skill in the art are expressly incorporated herein by reference and are intended to be encompassed by the claims. Furthermore, nothing disclosed herein is intended to be dedicated to the public, regardless of whether such disclosure is explicitly set forth in the claims. No element of a claim is to be construed under the provisions of 35 U.S.C. 112, sixth paragraph, unless the element is expressly recited using the phrase "means for" or, in the case of a method claim, the element is recited using the phrase "step for". Furthermore, to the extent that terms such as "comprises," "having," and the like are used, such terms are intended to be similarly inclusive in the manner in which "comprises" is interpreted when the term "comprises" is used as a transitional term in the claims.

[0183] The title, background, summary, brief description of the drawings, and abstract of the present disclosure are hereby incorporated into the present disclosure and are provided as illustrative examples of the present disclosure, not as limiting descriptions. They are submitted with the understanding that they are not used to limit the scope or meaning of the claims. In addition, it will be understood that in the detailed description, various features are grouped together in various embodiments for the purpose of providing illustrative examples and streamlining the disclosure. This method of disclosure should not be interpreted as reflecting an intention that the claimed subject matter requires more features than are expressly recited in each claim. Rather, as the following claims reflect, the inventive subject matter lies in less than all features of a single disclosed structure or operation. The following claims are hereby incorporated into the detailed description, with each claim standing on its own as separately claimed subject matter.

[0184] The claims are not intended to be limited to the embodiments described herein, but are to be accorded the full scope consistent with the language of the claims and include all legal equivalents. Nonetheless, none of the claims are intended, and should not be construed, to cover subject matter that does not meet the requirements of 35 U.S.C. §§ 101, 102, or 103.

Claims

1. 1. A medical fluid extension set system, comprising: a tubing having a first end and a second end; a fluid coupling coupled to the first end of the tubing; a tubing anchor coupled to the tubing between the first end and the second end of the tubing; A medical fluid extension set system comprising:

2. 2. The medical fluid extension set system of claim 1, wherein the fluid coupling device comprises a first valve assembly and a second valve assembly, the first valve assembly and the second valve assembly being removably coupled together to form a fluid flow path through the tubing and the fluid coupling device.

3. The medical fluid extension set system of claim 1 , further comprising a catheter coupled to the second end of the tubing.

4. 2. The medical fluid extension set system of claim 1, wherein the tubing anchor is coupled to the tubing such that movement of the tubing anchor along the length of the tubing between the first end and the second end of the tubing is resisted.

5. The medical fluid extension set system of claim 1 , further comprising an adhesive layer extending along an outer surface of the tubing anchor.

6. 2. The medical fluid extension set system of claim 1, wherein the tubing anchor comprises an anchor body having a first end, a second end, a first sidewall, a second sidewall, a top end, a bottom end, and a tubing passage extending through the first end and the second end and defining a longitudinal axis of the anchor body.

7. 7. The medical fluid extension set system of claim 6, wherein the tubing anchor comprises a width between the first sidewall and the second sidewall, the width of the tubing anchor decreasing in a direction from the first end of the tubing anchor to the second end of the tubing anchor.

8. The medical fluid extension set system of claim 7 , wherein the tubing extends through the tubing anchor such that the second end of the tubing anchor is oriented toward the fluid coupling device.

9. 7. The medical fluid extension set system of claim 6, wherein the first sidewall has a front portion and a rear portion, the front portion and the rear portion of the first sidewall extending away from the longitudinal axis and intersecting at an apex of the first sidewall, and the second sidewall has a front portion and a rear portion, the front portion and the rear portion of the second sidewall extending away from the longitudinal axis and intersecting at an apex of the second sidewall.

10. 10. The medical fluid extension set system of claim 9, wherein a width of the tubing anchor between the apexes of the first and second side walls is greater than a height of the tubing anchor between the top and bottom ends.

11. 10. The medical fluid extension set system of claim 9, wherein a first length of the tubing anchor extending from the apex of the first sidewall to the apex of the second sidewall and along the second end of the tubing anchor is longer than a second length of the tubing anchor extending from the apex of the first sidewall to the apex of the second sidewall and along the first end of the tubing anchor.

12. The medical fluid extension set system of claim 1 , wherein a fluid connector is coupled to the second end of the tubing, a portion of the fluid connector being coupled to the tubing anchor.

13. The medical fluid extension set system of claim 1 , wherein the fluid coupling device is pivotally coupled to the tubing anchor.

14. 2. The medical fluid extension set system of claim 1, further comprising: another tubing having a first end coupled to the fluid coupling device; and another tubing anchor coupled to the another tubing, the fluid coupling device being fluidly coupled between the tubing anchor and the another tubing anchor.

15. The fluid coupling device comprises: A first valve assembly, a housing having a first end, a second end opposite the first end, and an interior surface defining a cavity extending through the second end toward the first end of the housing; a post having a proximal end portion and a distal end portion, the distal end portion of the post extending into the cavity in a direction from the first end of the housing toward the second end of the housing; a fluid passageway extending through the first end of the housing and through the post; a compressible valve positioned within the cavity, the compressible valve having a proximal end portion and a distal end portion, the proximal end portion comprising a resilient member having an inner surface forming a recess, the distal end portion comprising a head having a slit extending through the head to the recess; a first valve assembly comprising: A second valve assembly, a body having a first end, a second end opposite the first end, an inner surface defining a bore extending through the second end toward the first end of the body, and a fluid passageway extending through the first end of the body to the bore; a valve plug positioned within the bore, the valve plug having a first end, a second end and a slit extending through the first end and the second end of the valve plug; a second valve assembly comprising: The medical fluid extension set system of claim 1 , comprising:

16. 16. The medical fluid extension set system of claim 15, wherein when the first and second valve assemblies are separated from one another, the compressible valve is in a first position, a distal end of the head is aligned with the second end of the housing and the distal end portion of the post is positioned within the recess, and when the first and second valve assemblies are coupled together, the second end of the body is positioned within the cavity of the housing, whereby the compressible valve is in a second position, the head is biased toward the first end of the housing and the distal end portion of the post extends through the slit in the head of the compressible valve and the slit in the valve plug, whereby the fluid passage of the first valve assembly is fluidly coupled with the fluid passage of the second valve assembly.

17. 1. A method for providing a medical fluid extension set system, comprising: providing a tubing having a first end and a second end, the first end comprising a fluid coupling; coupling a tubing anchor to the tubing such that the tubing anchor is positioned between the first end and the second end of the tubing; A method comprising:

18. 20. The method of claim 17, wherein coupling the tubing anchor to the tubing includes inserting the tubing through a tubing passage extending through a first end of the tubing anchor and a second end of the tubing anchor.

19. 20. The method of claim 17, further comprising joining the tubing anchor to the tubing such that movement of the tubing anchor along a length of the tubing between the first end and the second end of the tubing is resisted.

20. The method of claim 17 , further comprising coupling a catheter to the second end of the tubing.

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