Pipeline extraction device and system for blood collection

Abstract

This utility model relates to a tubing extraction device and a system for blood collection. The tubing extraction device is for use with a peripheral venous catheter and includes: a housing having a proximal end, a distal end, and sidewalls defining an internal volume between the proximal and distal ends; a flow tube defining an internal lumen, wherein the flow tube has a retracted position and an extended position, in which the distal end of the flow tube is received within the housing, and in the extended position, the distal end of the flow tube extends beyond the distal end of the housing; a support tube connected to and movable with the flow tube; and a collapsible support positioned within the housing, wherein a portion of the flow tube extends through the collapsible support. When the flow tube is in the retracted position, the collapsible support has a first length, and when the flow tube is in the extended position, the collapsible support has a second length, the first length being greater than the second length. The distal end of the support tube is configured such that when the tubing extraction device is connected to a needleless connector, the distal end is positioned proximal to the distal end of the needleless connector.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority to U.S. Provisional Patent Application No. 63 / 641,599, filed May 2, 2024, entitled “Line Draw Device,” the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] This disclosure generally relates to pipeline extraction devices, and more specifically, to pipeline extraction devices having various features for supporting the flow tube of the pipeline extraction device and ensuring a secure connection between the pipeline extraction device and other components. Background Technology

[0004] When used in conjunction with indwelling intravenous (IV) catheters, the retraction device may include a displaceable tubing or catheter that is advanced beyond the distal end of the indwelling catheter for blood collection. Typically, as the displaceable catheter is advanced, it may encounter obstruction, causing deflection. Examples of obstruction include friction from seals within the retraction device, tortuous paths within integrated catheters, compression of catheter fittings as they enter the skin, thrombi, fibrin, and valves. This deflection can reduce the ability of the displaceable catheter to extend beyond the distal end of the indwelling catheter, thus limiting its use for blood collection. Some retraction devices include a support tube along a portion of the displaceable catheter to prevent buckling of the displaceable catheter during use. Utility Model Content

[0005] According to an embodiment of the present invention, a catheter retrieval device for use with a peripheral intravenous catheter (PIVC) includes: a housing having a proximal end, a distal end, and a sidewall located between the proximal end and the distal end and defining an internal volume; a flow tube defining an internal lumen having a retracted position and an extended position, wherein in the retracted position the distal end of the flow tube is received within the housing, and in the extended position the distal end of the flow tube extends beyond the distal end of the housing; a support tube connected to and movable with the flow tube; and a collapsible support positioned within the housing, wherein a portion of the flow tube extends through the collapsible support. When the flow tube is in the retracted position, the collapsible support has a first length, and when the flow tube is in the extended position, the collapsible support has a second length, wherein the first length is greater than the second length. The distal end of the support tube is configured such that when the tubing extraction device is connected to the pinless connector, the distal end of the support tube is positioned proximal to the distal end of the pinless connector.

[0006] In some embodiments, the support tube includes an accordion fold. In other configurations, the support tube includes a telescopic section.

[0007] According to another embodiment of the present invention, a line retrieval device for use with a peripheral intravenous catheter (PIVC) includes: a housing having a proximal end, a distal end, and a sidewall located between the proximal end and the distal end and defining an internal volume; a hub received within the housing; a flow tube connected to the hub and defining an internal lumen, the flow tube having a retracted position and an extended position, in the retracted position the distal end of the flow tube is received within the housing; in the extended position the distal end of the flow tube extends beyond the distal end of the housing; and a locking member configured to engage with the hub or the housing when the flow tube is in the extended position.

[0008] According to another embodiment of the present invention, a line retrieval device for use with a peripheral intravenous catheter (PIVC) includes: a housing having a proximal end, a distal end, and a sidewall located between the proximal end and the distal end and defining an internal volume; a flow tube defining an internal lumen having a retracted position and an extended position, wherein in the retracted position the distal end of the flow tube is received within the housing; and in the extended position the distal end of the flow tube extends beyond the distal end of the housing; and a support tube connected to the flow tube, and the support tube being movable with the flow tube as the flow tube moves between the retracted position and the extended position, wherein the support tube is flexible.

[0009] In some configurations, the support tube comprises polyimide, polyurethane, Nitinol, or a semi-rigid material that is more flexible than steel. In other configurations, the support tube comprises a wire coil. In some configurations, the housing includes a connector located at the distal end, wherein the connector is configured to connect to a needleless connector or indwelling catheter.

[0010] According to another embodiment of the present invention, a line retrieval device for use with a peripheral intravenous catheter (PIVC) includes: a housing having a proximal end, a distal end, and a sidewall located between the proximal end and the distal end and defining an internal volume; a flow tube defining an internal lumen having a retracted position and an extended position, wherein in the retracted position the distal end of the flow tube is received within the housing, and in the extended position the distal end of the flow tube extends beyond the distal end of the housing; and a support tube connected to the flow tube, and movable with the flow tube as the flow tube moves between the retracted position and the extended position, wherein a transition between the support tube and the flow tube is configured to reduce damage to the PIVC, related components, or the line retrieval device.

[0011] In some configurations, the transition between the support tube and the flow tube includes an overmold, a tapered section, a chamfer, and / or a radius. In other configurations, the transition between the support tube and the flow tube includes an asymmetrical end of the support tube.

[0012] According to another embodiment of the present invention, a line retrieval device for use with a peripheral intravenous catheter (PIVC) includes: a housing having a proximal end, a distal end, and a sidewall located between the proximal end and the distal end and defining an internal volume; a flow tube defining an internal lumen having a retracted position and an extended position, wherein in the retracted position the distal end of the flow tube is received within the housing, and in the extended position the distal end of the flow tube extends beyond the distal end of the housing; and a support tube connected to the flow tube, wherein the support tube is movable with the flow tube as the flow tube moves between the retracted position and the extended position, wherein the housing is flexible.

[0013] In some configurations, the housing includes one or more flexible segments.

[0014] According to another embodiment of the present invention, a line retrieval device for use with a peripheral intravenous catheter (PIVC) includes: a housing having a proximal end, a distal end, and a sidewall located between the proximal end and the distal end and defining an internal volume; a hub received within the housing; a flow tube connected to the hub and defining an internal lumen, the flow tube having a retracted position and an extended position, in the retracted position the distal end of the flow tube is received within the housing, and in the extended position the distal end of the flow tube extends beyond the distal end of the housing; an actuator connected to the hub, at least a portion of the actuator extending from the proximal end of the housing; and an extension tube connected to the actuator or the hub.

[0015] According to another embodiment of the present invention, a line retrieval device for use with a peripheral intravenous catheter (PIVC) includes: a housing having a proximal end, a distal end, and a sidewall located between the proximal and distal ends and defining an internal volume; a hub received within the housing; a flow tube connected to the hub and defining an internal lumen, the flow tube having a retracted position and an extended position, wherein in the retracted position the distal end of the flow tube is received within the housing; and in the extended position the distal end of the flow tube extends beyond the distal end of the housing; and a connector positioned at the distal end of the housing, the connector including a male Luer lock connector and a movable locking member, wherein when the male Luer lock connector receives a corresponding component, the movable locking member is configured to engage the corresponding component to lock the corresponding component to the housing.

[0016] According to another embodiment of the present invention, a line retrieval device for use with a peripheral intravenous catheter (PIVC) includes: a housing having a proximal end, a distal end, and a sidewall located between the proximal end and the distal end and defining an internal volume; a connector positioned at the distal end of the housing; a flow tube defining an internal lumen having a retracted position and an extended position, wherein in the retracted position the distal end of the flow tube is received within the housing, and in the extended position the distal end of the flow tube extends beyond the distal end of the housing; and a support tube connected to the flow tube, and the support tube is movable with the flow tube as the flow tube moves between the retracted position and the extended position, wherein when the flow tube is in the extended position and when the distal end of the flow tube has a maximum extension from the distal end of the connector, the distal end of the support tube is positioned proximal to the distal end of the connector.

[0017] According to another embodiment of the present invention, a system includes an integrated catheter and a line extraction device. The integrated catheter has a catheter adapter and a needleless connector. The catheter adapter has a side port, and the needleless connector is in fluid communication with the side port. The line extraction device includes: a housing having a proximal end, a distal end, and a sidewall located between the proximal end and the distal end and defining an internal volume; a connector positioned at the distal end of the housing, wherein the connector is configured to connect to the needleless connector; a flow tube defining an internal lumen, wherein the flow tube has a retracted position and an extended position, wherein in the retracted position the distal end of the flow tube is received within the housing, and in the extended position the distal end of the flow tube extends beyond the distal end of the housing; and a support tube connected to the flow tube, and the support tube is movable with the flow tube as the flow tube moves between the retracted position and the extended position. When the flow tube is in the extended position and when the distal end of the flow tube has its maximum extension from the distal end of the connector, the distal end of the support tube is positioned proximal to the inner wall of the conduit adapter.

[0018] In some configurations, when the flow tube is in the extended position and when the distal end of the flow tube has its maximum extension from the distal end of the connector, the distal end of the support tube is positioned at the centerline of the conduit adapter.

[0019] According to another embodiment of the present invention, a line retrieval device for use with a peripheral intravenous catheter (PIVC) includes: a housing having a proximal end, a distal end, and a sidewall located between the proximal end and the distal end and defining an internal volume, the housing defining a track; a hub received within the housing, the hub including a guide received within the track of the housing; and a flow tube connected to the hub and defining an internal lumen, the flow tube having a retracted position and an extended position, in the retracted position the distal end of the flow tube is received within the housing, and in the extended position the distal end of the flow tube extends beyond the distal end of the housing, wherein the track includes a retraction inhibition feature.

[0020] In some configurations, the retraction suppression feature includes a track structure configured to increase the force required to move the flow tube from the extended position to the retracted position. In other configurations, the retraction suppression feature includes a nonlinear track portion. Attached Figure Description

[0021] Figure 1 is a front view of a traditional pipeline extraction device.

[0022] Figure 2 is a schematic diagram of the traditional flow tube and support tube arrangement;

[0023] Figure 3 is a schematic diagram of a conventional line extraction device used with an integrated conduit;

[0024] Figure 4 This is a schematic diagram of a conventional line extraction device used in conjunction with an integrated conduit;

[0025] Figure 5 This is a schematic diagram of a conventional line extraction device used in conjunction with an integrated conduit;

[0026] Figure 6 This is a schematic diagram of a conventional line extraction device used in conjunction with an integrated conduit;

[0027] Figure 7 This is a schematic diagram of a line extraction device used with an integrated conduit according to one aspect or embodiment of this application;

[0028] Figure 8 This is a schematic diagram of a pipeline extraction device according to one aspect or embodiment of this application, showing the extended position of the support pipe;

[0029] Figure 9 yes Figure 8 A schematic diagram showing the collapse location of the support pipe in the pipeline extraction device;

[0030] Figure 10 This is a schematic diagram of a pipeline extraction device according to one aspect or embodiment of this application;

[0031] Figure 11 This is a schematic diagram of a pipeline extraction device according to one aspect or embodiment of this application, showing the retracted position of the support pipe;

[0032] Figure 12 yes Figure 11 The diagram shows the advancing position of the support pipe in the pipeline extraction device.

[0033] Figure 13 This is a perspective view of a pipeline extraction device according to one aspect or embodiment of this application;

[0034] Figure 14 This is a schematic diagram of a pipeline extraction device according to one aspect or embodiment of this application;

[0035] Figure 15 This is a schematic diagram of the arrangement of the flow tube and support tube according to one aspect or embodiment of this application;

[0036] Figure 16 This is a schematic diagram of the arrangement of the flow tube and support tube according to one aspect or embodiment of this application;

[0037] Figure 17 This is a schematic diagram of the arrangement of the flow tube and support tube according to one aspect or embodiment of this application;

[0038] Figure 18 This is a schematic diagram of the arrangement of the flow tube and support tube according to one aspect or embodiment of this application;

[0039] Figure 19 This is a schematic diagram of the arrangement of the flow tube and support tube according to one aspect or embodiment of this application;

[0040] Figure 20 This is a schematic diagram of the arrangement of the flow tube and support tube according to one aspect or embodiment of this application;

[0041] Figure 21 This is a schematic diagram of a pipeline extraction device according to one aspect or embodiment of this application;

[0042] Figure 22 This is a schematic diagram of a pipeline extraction device according to one aspect or embodiment of this application;

[0043] Figure 23 This is a schematic diagram of a pipeline extraction device according to one aspect or embodiment of this application;

[0044] Figure 24 This is a schematic diagram of a pipeline extraction device according to one aspect or embodiment of this application;

[0045] Figure 25 This is a schematic diagram of a pipeline extraction device according to one aspect or embodiment of this application;

[0046] Figure 26 This is a schematic diagram of a pipeline extraction device according to one aspect or embodiment of this application;

[0047] Figure 27 This is a schematic diagram of the connector of the pipeline extraction device according to one aspect or embodiment of this application;

[0048] Figure 28 This is a partial cross-sectional view of a pipeline extraction device according to one aspect or embodiment of the present disclosure;

[0049] Figure 29 yes Figure 28 The connector shows a partial cross-sectional view of the insertion of the corresponding component;

[0050] Figure 30 yes Figure 28 A perspective view of the connector and the insertion of the corresponding component is shown.

[0051] Figure 31 This is a schematic diagram of a pipeline extraction device according to one aspect or embodiment of this application;

[0052] Figure 32 This is a schematic diagram of a pipeline extraction device according to one aspect or embodiment of this application; and

[0053] Figure 33 This is a schematic diagram of a pipeline extraction device according to one aspect or embodiment of this application. Detailed Implementation

[0054] The following description is provided to enable those skilled in the art to produce and use the described embodiments intended for implementing this invention. However, various modifications, equivalents, variations, and substitutions will still be apparent to those skilled in the art. Any and all of these modifications, variations, equivalents, and substitutions are intended to fall within the spirit and scope of this invention.

[0055] In the following description, for descriptive purposes, the terms “upper,” “lower,” “right,” “left,” “vertical,” “horizontal,” “top,” “bottom,” “lateral,” “longitudinal,” and their derivatives shall be used in connection with the present invention as oriented as shown in the accompanying drawings. However, it should be understood that the present invention may take various alternative variations unless explicitly stated to the contrary. It should also be understood that the specific devices shown in the accompanying drawings and described in the following specification are merely exemplary embodiments of the present invention. Therefore, the specific dimensions and other physical characteristics associated with the embodiments disclosed herein should not be considered limiting.

[0056] Referring to Figures 1 and 2, a conventional line extraction device 10 includes a housing 12; a hub 14 received within the housing 12; a flow tube 16 defining an inner lumen, connected to and extending distally from the hub 14; an advance tube 18 connected to the hub 14 and extending proximally from the hub 14; and an advance handle 20 located proximally to the advance tube 18. The housing 12 includes a connector 22 and a support tube 24 located distally to the housing 12 for connecting the line extraction device 10 directly or via an intermediate device or connector to an indwelling peripheral intravenous catheter (PIVC). The support tube is connected to and movable with the flow tube 16. The connector 22 may be integrally formed with or separate from the housing 12. The flow tube 16 is movable between a retracted position, in which the distal end of the flow tube 16 is received within the housing 12, and in the extended position, the distal end of the flow tube 16 extends beyond the distal end of the housing 12. The line aspiration device 10 is configured to be coupled to and / or otherwise engage with an indwelling peripheral intravenous catheter (PIVC) to transfer fluid from a site in the patient (e.g., aspirate blood) and / or transfer fluid to a site in the patient (e.g., infuse a drug or substance). The line aspiration device 10 may be one of the line aspiration devices shown and described in U.S. Patent No. 11,389,624 and U.S. Patent Application Publication No. 2023 / 0181071, which are incorporated herein by reference in their entirety.

[0057] One or more problems may occur during the use of the tubing aspiration device 10, including: 1) damage to the tubing aspiration device and / or the indwelling catheter when the support tube (typically a metal tube) is advanced into the indwelling catheter or component; 2) loss of flexibility of the indwelling catheter when the support tube is advanced, or insufficient flexibility of the system or component, which may result in suboptimal blood collection techniques using inverted collection tubes. This may inhibit proper mixing of blood with additives in the collection tube, prevent visualization of fill levels, and cause displacement of the indwelling catheter or other adverse effects. 3) The tubing extraction device 10 is prone to disconnecting from the indwelling catheter or related components during connection of the tubing extraction device 10 to the indwelling catheter or related components; 4) The connector 22 is accidentally disconnected from the needleless connector or indwelling catheter; 5) The extension or protrusion of the flow tube 16 is insufficient to achieve optimal blood collection success rate; 6) Contact between the blunt sleeve or other features of the connector 22 and the needleless connector or indwelling catheter may cause damage; and 7) The tubing extraction device 10 is prone to premature and unintentional retraction during tubing extraction.

[0058] A support tube 24 is provided to reduce the likelihood of buckling during the advancement of the flow tube 16 through the indwelling catheter. The flow tube 16 is connected to and extends distally from the support tube 24, and a portion of the flow tube 16 may be positioned within at least a portion of the support tube. A discontinuity is created at the transition between the support tube 24 and the flow tube 16, which may result in the flow tube 16 being at risk of buckling, kinking, damage, or being severed in this location, as the support tube 24 may be a thin-walled metal tube, one end of which may be susceptible to damage to the flow tube 16 or other polymer system components. These risks and problems are exacerbated when used with catheters that include integrated extension kits and / or changes in the centerline angle of the fluid path (e.g., the Nexiva integrated catheter, commercially available from Becton, Dickinson and Company).

[0059] Referring again to Figure 2, the arrangement of the flow tube 16 and support tube 24 as described above may cause problems as it is further advanced through a range of vascular access devices and device types. When used with certain vascular access devices or indwelling catheters, the arrangement of the flow tube 16 and support tube 24 may result in buckling and kinking of the flow tube 16, permanent bending and deformation of the support tube 24, risk of cutting or separation of a portion of the flow tube 16 from the fitting assembly, peeling and damage to components of the indwelling catheter or needleless connector (including any plastic parts contacted by the support tube 24 and catheter fittings), puncture of the catheter or extension kit fittings, and loss of required flexibility of the flexible components of the catheter system.

[0060] Refer to Figure 3 to Figure 6 Figure 3 shows a schematic diagram of the line extraction device 10 used in conjunction with an integrated catheter 30 (e.g., the Nexiva integrated catheter, commercially available from Beckton Dickinson). As shown in Figure 3, if the support tube 24 is pushed too far, it may collide with the catheter adapter or internal structure, potentially causing the flow tube 16 to become kinked or damaged. Figure 4 and Figure 5 As shown, the support tube 24 can be positioned inside or outside the flexible extension portion of the integrated catheter 30, which may damage and restrict the flexibility of the integrated catheter 30. Figure 6 As shown, the support tube 24 may damage the catheter adapter or wedge region of the integrated catheter 30, the catheter adapter port ramp, the flexible extension tube portion of the integrated catheter 30, or the inlet of the needleless connector.

[0061] refer to Figures 7 to 12According to one aspect or embodiment of this application, various concepts are shown that include one or more features for ensuring that the distal edge of the support tube 24 remains close to any flexible portion of the fluid path and / or any portion of the fluid path with a centerline and characteristic angle variation, which may cause the support tube 24 to contact and damage the integrated conduit 30 or related components.

[0062] refer to Figures 8 to 12 According to one aspect or embodiment, a line extraction device 100 similar to the line extraction device 10 is shown. However, the line extraction device 100 includes a collapsible support 102 positioned within a housing 12, through which a portion of a flow tube 16 extends. The collapsible support 102 has a first length when the flow tube 16 is in a retracted position and a second length when the flow tube 16 is in an extended position. The first length is greater than the second length.

[0063] like Figure 8 and Figure 9 As shown, in one aspect or embodiment, the collapsible support 102 includes an accordion-shaped fold to allow the collapsible support 102 to fold from its unfolded state when the flow tube 16 and hub 14 are advanced. Figure 8 ) collapsed to a collapsed state ( Figure 9 The collapsible support 102 may be formed of an elastic material and is configured to collapse due to the material and / or shape of the collapsible support 102. The line extraction device 100 includes a support tube 24, as discussed above in conjunction with the line extraction device 10. However, the support tube 24 of the line extraction device 100 is shortened such that the distal end of the support tube 24 does not extend beyond the pinless connector of the integrated conduit 30. The collapsible support 102 does not move with the flow tube 16 and the support tube 24. In some aspects or embodiments, the distal end of the collapsible support 102 is connected to the housing 12, and the remainder of the collapsible support 102 is free to move relative to the housing 12. The collapsible support 102 is configured to provide additional support to the flow tube 16 during its movement from a retracted position to an extended position. As the advance handle 20 and / or advance tube 18 move distally, the flow tube 16 moves relative to the collapsible support 102, engaging at least a portion of the collapsible support 102 to prevent kinking or bending during the advancement of the flow tube 16 through the integrated catheter 30 and the patient's vein. In some aspects or embodiments, the collapsible support 102 is in continuous contact with the flow tube 16 or the support tube 24. In some aspects or embodiments, the collapsible support 102 is spaced apart from the flow tube and contacts the flow tube 16 only during bending of the flow tube 16 from the longitudinal axis of the line extraction device 100. Figure 9As shown, when the flow tube 16 is switched from the retracted position to the extended position to allow the collapsible support 102 to collapse, the hub 14 engages with the collapsible support 102, which allows the flow tube 16 to extend fully without adding additional length to the housing 12.

[0064] The shortened support tube 24 allows a portion of the flow tube 16 to be unsupported without the collapsible support 102. Therefore, the shortened support tube 24 and the collapsible support 102 allow the flow tube 16 to be supported while ensuring that the distal edge of the support tube 24 remains close to any flexible portion of the fluid path and / or any portion of the fluid path with a centerline and characteristic angular variation, which could cause the support tube 24 to contact and damage the integrated conduit 30 or related components, as described above.

[0065] like Figure 10 As shown, in some aspects or embodiments, the tubing extraction device 100 includes a locking member 110 connected to the housing 12, wherein the locking member 110 is configured to engage the hub 14 when the tubing 16 is in the extended position. In one aspect or embodiment, the locking member 110 is a push-button lock or pawl that engages with one or more jacks or recesses defined by the hub 14 or the housing 12. In one aspect or embodiment, the locking member 110 engages with a circumferential recess defined by the hub 14. In one aspect or embodiment, the locking member 110 is positioned on the hub 14 and engages with the housing 12. The locking member 110 ensures that compressive forces from the collapsible support 102 do not push the tubing 16 out of the vein during blood collection. In one aspect or embodiment, the locking member 110 is provided separately (without the collapsible support 102) to prevent accidental retraction of the tubing 16.

[0066] like Figure 11 and Figure 12 As shown, in one aspect or embodiment, the collapsible support 102 includes a telescopic section to allow the collapsible support 102 to extend from its deployed state when the flow tube 16 and hub 14 are advanced. Figure 11 ) collapsed to a collapsed state ( Figure 12 In some aspects or embodiments, the retractable section is formed of metal or plastic.

[0067] refer to Figure 13 and Figure 14According to one aspect or embodiment, a line extraction device 200 similar to line extraction device 10 is shown. However, line extraction device 200 includes a flexible support tube 202. In some aspects or embodiments, the support tube 202 is formed of a semi-rigid but flexible material. In some aspects or embodiments, the support tube 202 is formed of polyimide, polyurethane, nitinol, or combinations thereof. In some aspects or embodiments, the support tube 202 is a polymer sleeve or a tapered flow tube 16. The flexible support tube 202 is more flexible than a thin-walled metal tube (e.g., the support tube 24 described above). Figure 14 As shown, in one aspect or embodiment, the support tube 202 includes a wire coil 204. The wire coil 204 may have a constant or variable winding. In one aspect or embodiment, the wire coil 204 includes a tight winding along its proximal length and a loose winding at its distal end to provide support for the flow tube 16, while the wire coil 204 is flexible to support the flow tube 16 by changes in angle during advancement. The wire coil 204 adds flexibility during the advancement of the flow tube 16, and can also be compressed if a corner or jamming point is encountered to allow continued advancement of the flow tube 16, even if the distal end of the wire coil 204 does not continue to advance.

[0068] refer to Figures 15 to 20 Various concepts for a transition between the support tube 24 and the flow tube 16 are shown according to several aspects or embodiments, the transition being configured to reduce damage to the indwelling catheter or related components. In some aspects or embodiments, the transition between the support tube 24 and the flow tube 16 includes an overmolded component ( Figure 15 ), conical segment or part ( Figure 16 and Figure 17 ), chamfer ( Figure 18 ) and / or radius ( Figure 19 ).like Figure 20 As shown, in one aspect or embodiment, the transition between the support tube 24 and the flow tube 16 includes an asymmetrical end of the support tube 24.

[0069] refer to Figure 21 According to one aspect or embodiment, a pipeline extraction device 300 similar to the pipeline extraction device 10 is shown. However, the pipeline extraction device 300 includes a flexible housing 302. In some aspects or embodiments, the flexible housing 302 is flexible due to the material and / or shape of the flexible housing 302. In some aspects or embodiments, the flexible housing 302 includes one or more flexible segments 304, rather than the entire flexible housing 302 being flexible; or in addition to the entire flexible housing 302 being flexible, the flexible housing 302 also includes one or more flexible segments 304.

[0070] refer to Figures 22 to 26According to one aspect or embodiment, a line extraction device 400 similar to the line extraction device 10 is shown. However, the line extraction device 400 includes an extension tube 402 connected to the push handle 20. Figure 22 ) or connected to hub 14 ( Figures 23 to 26 ).like Figures 23 to 26 As shown, in some aspects or embodiments, the line extraction device 400 includes a propulsion member 404 as an actuator (instead of providing a propulsion tube 18 as an actuator) to move the flow tube 16 between a retracted position and an extended position. The extension tube 402 may be aligned with the longitudinal axis of the housing 12 of the line extraction device 400, or may be angled or non-parallel to the longitudinal axis of the housing 12. Figure 23 and Figure 24 As shown, when the propulsion component 404 moves from the retracted position ( Figure 23 Move to the propulsion position. Figure 24 When this is done, the extension tube 402 remains flexible to ensure an optimal blood draw process. For example... Figure 25 and Figure 26 As shown, in one aspect or embodiment, the propulsion member 404 includes a handle portion 406 configured to move along the housing 12 as the flow tube 16 moves between a retracted position and an extended position, wherein the propulsion member 404 extends proximally from the hub 14 and distally after the transition portion 408.

[0071] refer to Figure 27 In one aspect or embodiment, connector 450 is similar to connector 22 of the line extraction device 10, and connector 450 includes one or more features for preventing the straight conduit from disengaging from the needleless connector when the line extraction device 10 is attached and when the rotational nut is clamped while attaching the line extraction device 10. These features may include: adjusting the Luer Lok thread pitch angle, such as Figure 27 As shown; adding friction bumps or other friction-generating features to the blunt sleeve Luer element of the pinless connector rotary nut or the line extraction device 10; changing materials to obtain differentiated attachment torque; applying silicone to the threads of the blunt sleeve and / or connector 22; and / or reducing the height or outer diameter of the Luer element to reduce compression on the pinless connector.

[0072] refer to Figures 28 to 30In one aspect or embodiment, connector 500 is similar to connector 22 of line extraction device 10, and connector 500 also includes a movable locking member 502. When a corresponding component 504 (e.g., a female Luer lock) is received by a male Luer lock, the movable locking member 502 is configured to engage the corresponding component 504 to lock the corresponding component 504 to housing 12. The movable locking member 502 is configured to prevent connector 500 from accidentally disengaging from pinless components or other mating components during use. The movable locking member 502 is a lever located outside housing 12, a portion of which passes through a hole to engage with the threaded portion 504.

[0073] refer to Figure 31 and Figure 32 In one aspect or embodiment, a tubing extraction device 600 similar to the tubing extraction device 10 is shown. However, the tubing extraction device 600 may include one or more features for increasing the extension or advance length of the flow tube 16. Extending the flow tube 16 beyond the connector 22 by approximately 30 mm is beneficial for achieving optimal blood extraction results. In one aspect or embodiment, these features include one or more of the following: increasing the overall length of the device to increase the stroke; the support member 24 limiting the stroke may be shortened or made flexible; and the support member 24 may be movably attached to the flow tube 16 such that when the flow tube is in the extended position, the support member 24 can slide along the flow tube 16 as advance continues, thereby allowing the flow tube 16 to be further advanced distally relative to the support member 24. In one aspect or embodiment, the tubing extraction device 10 is modified such that when the flow tube 16 is in the extended position and when the distal end of the flow tube 16 has its maximum extension from the distal end of the connector 22, the metal support tube 24 does not extend beyond the distal end of the connector 22.

[0074] refer to Figure 33 In one aspect or embodiment, a line extraction device 700 similar to the line extraction device 10 is shown. However, the line extraction device 700 includes one or more features for preventing or inhibiting premature or unintentional retraction of the flow tube 16 during use. In one aspect or embodiment, these features include one or more of the following: rotation or other movement to achieve a retraction block, friction-increasing zone, or retraction block; widening or adjusting the track within the housing 12 to include a single step, multiple steps, or angle to increase the force required to retract the flow tube 16; and a friction zone (e.g., friction bumps) having features that increase tightness or other frictional forces. Figure 33As shown, housing 12 includes a track 702, wherein hub 14 has a guide (not shown) received within track 702, and the track includes a retraction suppression feature. In one aspect or embodiment, the retraction suppression feature includes a track structure configured to increase the force required to move flow tube 16 from an extended position to a retracted position, such as a widened or narrowed portion, a step, a stop protrusion, or other structure. In one aspect or embodiment, the retraction suppression feature includes a non-linear track portion, such as a portion that needs to rotate during flow tube 16 advancement.

[0075] In one aspect or embodiment, a method of using any of the line extraction devices 100, 200, 300, 400, 600, 700 includes: connecting the line extraction device to an indwelling catheter; advancing a flow tube 16 beyond the end of the indwelling catheter while restricting the advancement of a support tube or other feature beyond the proximal side of any flexible portion of the fluid path and beyond the proximal side of any portion of the fluid path having a centerline or feature angle change; collecting a blood sample; and removing the line extraction device from the indwelling catheter.

[0076] Although this disclosure has been described in detail based on embodiments or aspects currently considered to be most practical and preferred for illustrative purposes, it should be understood that such detail is for that purpose only, and this disclosure is not limited to the disclosed embodiments or aspects. Rather, this disclosure is intended to cover modifications and equivalent arrangements within the spirit and scope of the appended claims. For example, it should be understood that this disclosure contemplates that, to the extent possible, one or more features of any embodiment may be combined with one or more features of any other embodiment.

Claims

1. A line extraction device for use with a peripheral intravenous catheter (PIVC), the line extraction device comprising: The pipeline extraction device includes: A housing having a proximal end, a distal end, and a sidewall, the sidewall being located between the proximal end and the distal end and defining an internal volume; A flow tube defining an inner cavity, the flow tube having a retracted position and an extended position, wherein in the retracted position the distal end of the flow tube is received within the housing, and in the extended position the distal end of the flow tube extends beyond the distal end of the housing; Support tube, the support tube being connected to the flow tube and movable with the flow tube; and A collapsible support member is positioned within the housing, a portion of the flow tube extends through the collapsible support member, wherein the collapsible support member has a first length when the flow tube is in the retracted position and a second length when the flow tube is in the extended position, the first length being greater than the second length, and wherein the distal end of the support tube is configured such that when the tubing extraction device is connected to the pinless connector, the distal end of the support tube is positioned proximal to the distal end of the pinless connector.

2. The line extraction device of claim 1, wherein, The collapsible support includes an accordion-shaped fold.

3. The pipeline extraction device according to claim 1, characterized in that, The collapsible support includes a telescopic section.

4. A tubing extraction device, said tubing extraction device being used in conjunction with a peripheral intravenous catheter (PIVC), characterized in that, The pipeline extraction device includes: A housing having a proximal end, a distal end, and a sidewall, the sidewall being located between the proximal end and the distal end and defining an internal volume; Hub, which is received within the housing; A flow tube, connected to the hub and defining an inner cavity, the flow tube having a retracted position and an extended position, wherein in the retracted position the distal end of the flow tube is received within the housing, and in the extended position the distal end of the flow tube extends beyond the distal end of the housing; and A locking member configured to engage the hub or the housing when the flow tube is in the extended position.

5. A tubing extraction device, said tubing extraction device being used in conjunction with a peripheral intravenous catheter (PIVC), characterized in that, The pipeline extraction device includes: A housing having a proximal end, a distal end, and a sidewall, the sidewall being located between the proximal end and the distal end and defining an internal volume; A flow tube defining an inner cavity, the flow tube having a retracted position and an extended position, wherein in the retracted position the distal end of the flow tube is received within the housing, and in the extended position the distal end of the flow tube extends beyond the distal end of the housing; and A support tube is connected to the flow tube, and the support tube is movable with the flow tube as the flow tube moves between the retracted position and the extended position, wherein the support tube is flexible.

6. The pipeline extraction device according to claim 5, characterized in that, The support tube comprises polyimide, polyurethane, nickelinol, or a semi-rigid material that is more flexible than steel.

7. The pipeline extraction device according to claim 5, characterized in that, The support tube includes a steel wire coil.

8. A tubing extraction device, said tubing extraction device being used in conjunction with a peripheral intravenous catheter (PIVC), characterized in that, The pipeline extraction device includes: A housing having a proximal end, a distal end, and a sidewall, the sidewall being located between the proximal end and the distal end and defining an internal volume; A flow tube defining an inner cavity, the flow tube having a retracted position and an extended position, wherein in the retracted position the distal end of the flow tube is received within the housing, and in the extended position the distal end of the flow tube extends beyond the distal end of the housing; and A support tube is connected to the flow tube and is movable with the flow tube as the flow tube moves between the retracted position and the extended position, wherein the transition between the support tube and the flow tube is configured to reduce damage to the PIVC or related components and / or reduce kinking of the flow tube.

9. The pipeline extraction device according to claim 8, characterized in that, The transition between the support tube and the flow tube includes an overmolded part, a tapered section, a chamfer, and / or a radius.

10. The pipeline extraction device according to claim 8, characterized in that, The transition between the support tube and the flow tube includes the asymmetrical end of the support tube.

11. A tubing extraction device, said tubing extraction device being used in conjunction with a peripheral intravenous catheter (PIVC), characterized in that, The pipeline extraction device includes: A housing having a proximal end, a distal end, and a sidewall, the sidewall being located between the proximal end and the distal end and defining an internal volume; A flow tube defining an inner cavity, the flow tube having a retracted position and an extended position, wherein in the retracted position the distal end of the flow tube is received within the housing, and in the extended position the distal end of the flow tube extends beyond the distal end of the housing; and A support tube is connected to the flow tube, and the support tube is movable with the flow tube as the flow tube moves between the retracted position and the extended position, wherein the housing is flexible.

12. The pipeline extraction device according to claim 11, characterized in that, The housing includes one or more flexible sections.

13. A tubing extraction device, said tubing extraction device being used in conjunction with a peripheral intravenous catheter (PIVC), characterized in that, The pipeline extraction device includes: A housing having a proximal end, a distal end, and a sidewall, the sidewall being located between the proximal end and the distal end and defining an internal volume; Hub, which is received within the housing; A flow tube, connected to the hub and defining an inner cavity, the flow tube having a retracted position and an extended position, in the retracted position the distal end of the flow tube is received within the housing, and in the extended position the distal end of the flow tube extends beyond the distal end of the housing; An actuator, the actuator being connected to the hub, at least a portion of the actuator extending from the proximal end of the housing; and An extension tube, which is connected to the actuator or the hub.

14. A tubing extraction device, said tubing extraction device being used in conjunction with a peripheral intravenous catheter (PIVC), characterized in that, The pipeline extraction device includes: A housing having a proximal end, a distal end, and a sidewall, the sidewall being located between the proximal end and the distal end and defining an internal volume; Hub, which is received within the housing; A flow tube, connected to the hub and defining an inner cavity, the flow tube having a retracted position and an extended position, wherein in the retracted position the distal end of the flow tube is received within the housing, and in the extended position the distal end of the flow tube extends beyond the distal end of the housing; and A connector, located at the distal end of the housing, includes a male Luer lock connector and a movable locking member, wherein, when the male Luer lock connector receives a corresponding component, the movable locking member is configured to engage the corresponding component to lock the corresponding component to the housing.

15. A tubing extraction device, said tubing extraction device being used in conjunction with a peripheral intravenous catheter (PIVC), characterized in that, The pipeline extraction device includes: A housing having a proximal end, a distal end, and a sidewall, the sidewall being located between the proximal end and the distal end and defining an internal volume; A connector, the connector being positioned at the distal end of the housing; A flow tube defining an inner cavity, the flow tube having a retracted position and an extended position, wherein in the retracted position the distal end of the flow tube is received within the housing, and in the extended position the distal end of the flow tube extends beyond the distal end of the housing; and A support tube is connected to the flow tube and is movable with the flow tube as the flow tube moves between the retracted position and the extended position, wherein when the flow tube is in the extended position and when the distal end of the flow tube has a maximum extension from the distal end of the connector, the distal end of the support tube is positioned proximal to the distal end of the connector.

16. A system for blood collection, characterized in that, The system includes: An integrated catheter, comprising a catheter adapter and a needleless connector, the catheter adapter having a side port, the needleless connector being in fluid communication with the side port; and Pipeline extraction device, the pipeline extraction device comprising: A housing having a proximal end, a distal end, and a sidewall, the sidewall being located between the proximal end and the distal end and defining an internal volume; A connector, located at the distal end of the housing, configured to connect to the pinless connector; A flow tube defining an inner cavity, the flow tube having a retracted position and an extended position, wherein in the retracted position the distal end of the flow tube is received within the housing, and in the extended position the distal end of the flow tube extends beyond the distal end of the housing; and A support tube is connected to the flow tube and is movable with the flow tube as the flow tube moves between the retracted position and the extended position, wherein when the flow tube is in the extended position and when the distal end of the flow tube has a maximum extension from the distal end of the connector, the distal end of the support tube is positioned proximal to the inner wall of the conduit adapter.

17. The system according to claim 16, characterized in that, When the flow tube is in the extended position and when the distal end of the flow tube has its maximum extension from the distal end of the connector, the distal end of the support tube is positioned at the centerline of the conduit adapter.

18. A tubing extraction device, said tubing extraction device being used in conjunction with a peripheral intravenous catheter (PIVC), characterized in that, The pipeline extraction device includes: A housing having a proximal end, a distal end, and a sidewall, the sidewall being located between the proximal end and the distal end and defining an internal volume, the housing defining a track; A hub, the hub being received within the housing, the hub including a guide member received within a track of the housing; and A flow tube, connected to the hub and defining an inner cavity, the flow tube having a retracted position and an extended position, wherein in the retracted position the distal end of the flow tube is received within the housing, and in the extended position the distal end of the flow tube extends beyond the distal end of the housing, wherein the track includes a retraction inhibition feature.

19. The pipeline extraction device according to claim 18, characterized in that, The retraction suppression feature includes a track structure configured to increase the force required to move the flow tube from the extended position to the retracted position.

20. The pipeline extraction device according to claim 18, characterized in that, The retraction suppression feature includes a nonlinear trajectory component.

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