Medical devices and medical systems

Abstract

The present utility model relates to medical devices and medical systems, the medical device includes: instrument, the instrument has proximal end and far end; guide, the guide is configured to movably receive the instrument and has the casing, the casing has proximal end, far end and the side wall of the internal volume between the proximal end and the far end of the casing is defined; and end effector, the end effector is arranged in the far end of the casing, the end effector is configured to be coupled to the guide intravenous pipeline and has the at least one locking element of protruding portion, the protruding portion has proximal end, far end and the side wall between the proximal end and the far end of the protruding portion, the side wall of the protruding portion has longitudinal axis and defines the interior, the interior is configured to be in fluid communication with the internal volume of the guide and the intravenous pipeline, the at least one locking element is configured to fix the end effector to the intravenous pipeline.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority to U.S. Provisional Patent Application No. 63 / 645,391, filed May 10, 2024, entitled “EndEffectors for Instrument Delivery Devices,” the entire disclosure of which is incorporated herein by reference. Technical Field

[0003] This disclosure generally relates to medical devices for use with intravenous (IV) catheters, and more specifically to medical devices having features for improving performance in accessing vascular systems. Background Technology

[0004] Instrument delivery devices (including those for blood collection) used with indwelling IV catheters may include movable instruments that can be advanced beyond the tip of the indwelling catheter. Typically, when instruments are attached to the indwelling catheter, for example via a needle-free connector (NFC), maintaining a proper seal around the end effector of the instrument delivery device and a secure connection between the end effector and the NFC can be problematic. Furthermore, given the geometry of the end effector, formability and manufacturability can be issues. Therefore, there is a need in the art for instrument delivery devices that offer improved manufacturability and provide a secure connection and stable performance for the instrument being delivered. Utility Model Content

[0005] This document provides a medical device comprising: an instrument having a proximal end and a distal end; a guide configured to movably receive the instrument and having a housing having a proximal end, a distal end, and a sidewall defining an internal volume between the proximal end and the distal end of the housing; and an end effector disposed at the distal end of the housing, the end effector being configured to connect the guide to an intravenous line, and the end effector including a proboscis and at least one locking element, the proboscis having a proximal end, a distal end, and a sidewall between the proximal end and the distal end of the proboscis, the sidewall of the proboscis having a longitudinal axis, a varying outer diameter, and defining an interior configured to be in fluid communication with the internal volume of the guide and the intravenous line, the at least one locking element being configured to secure the end effector to the intravenous line.

[0006] This document also provides a system comprising a catheter adapter and a medical device. The catheter adapter includes a proximal end, a distal end, and a sidewall defining a fluid flow path between the proximal and distal ends, the catheter adapter having a needle at the distal end of the catheter adapter and at least one connector at the proximal end of the catheter adapter. The medical device includes: an instrument having a proximal end and a distal end; a guide configured to movably receive the instrument and having a housing having a proximal end, a distal end, and a sidewall defining an internal volume between the proximal end and the distal end of the housing; and an end effector disposed at the distal end of the housing, the end effector being configured to connect the guide to the catheter adapter, and the end effector including a protrusion and at least one locking element, the protrusion having a proximal end, a distal end, and a sidewall between the proximal end and the distal end of the protrusion, the sidewall of the protrusion having a longitudinal axis, a varying outer diameter, and defining an interior, the interior being configured to be in fluid communication with the internal volume of the guide and the fluid flow path of the catheter adapter, the at least one locking element being configured to secure the end effector to the at least one connector of the catheter adapter. Attached Figure Description

[0007] Figure 1A and Figure 1B An instrument delivery device and an end effector for the instrument delivery device are shown;

[0008] Figure 2A and Figure 2B The system to which the end effector described herein can be connected is shown. Figure 2A ) and pinless connector (NFC) Figure 2B );

[0009] Figure 3 An end effector for an instrument delivery device according to a non-limiting embodiment described herein is shown;

[0010] Figure 4 An end effector for an instrument delivery device according to a non-limiting embodiment described herein is shown;

[0011] Figure 5 An end effector for an instrument delivery device according to a non-limiting embodiment described herein is shown;

[0012] Figure 6 An end effector for an instrument delivery device according to a non-limiting embodiment described herein is shown;

[0013] Figure 7 An end effector for an instrument delivery device according to a non-limiting embodiment described herein is shown;

[0014] Figures 8A to 8C An end effector for an instrument delivery device according to a non-limiting embodiment described herein is shown; and

[0015] Figure 9 An end effector for an instrument delivery device according to a non-limiting embodiment described herein is shown. Detailed Implementation

[0016] 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 be apparent to those skilled in the art. Any and all of these modifications, equivalents, variations, and substitutions are intended to fall within the spirit and scope of this invention.

[0017] In the following text, 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, specific dimensions and other physical features associated with the embodiments disclosed herein should not be considered limiting.

[0018] It should be understood that any range of values ​​listed in this article is intended to include all values ​​and subranges contained therein. For example, the range “1 to 10” is intended to include all subranges between the listed minimum value of 1 and the listed maximum value of 10 (inclusive), that is, the minimum value is equal to or greater than 1 and the maximum value is equal to or less than 10.

[0019] U.S. Patent Application No. 17 / 195,337 is incorporated herein by reference in its entirety.

[0020] This document provides devices and systems for delivering instruments via indwelling catheters (e.g., peripheral intravenous catheters, PIVCs). While certain devices (e.g., blood-drawing devices) are discussed below according to devices that can be used with PIVCs and illustrated in the accompanying drawings, those skilled in the art will understand that any number of different devices for introducing instruments (including devices ranging from tubes, probes, sensors (e.g., pressure sensors, pH sensors, lactate sensors, glucose sensors, etc.), wires, optical fibers, guidewires, etc.) may be used within the scope of this disclosure. It should also be understood that devices for delivering instruments as described herein can be implemented via catheter adapters and / or needleless connectors (NFC).

[0021] Now for reference Figures 1A to 2B This illustration shows a non-limiting embodiment of a medical device 1000 and a system including the medical device 1000 described herein. The system may include the medical device 1000 and a catheter assembly 3000. In a non-limiting embodiment, the medical device 1000 may be an instrument delivery device. A suitable catheter assembly 3000 for use with the instrument delivery device described herein is commercially available, for example, a catheter assembly under the trademark Nexiva from Becton, Dickinson and Company. The catheter assembly 3000 may include a catheter adapter 3120, which may include a distal end and a proximal end. In some embodiments, the catheter adapter 3120 may include one or more ports to which a medical device (e.g., the medical device 1000) may be coupled. In some embodiments, a port may be located at the proximal end of the catheter adapter 3120, or may be located between the distal and proximal ends of the catheter adapter 3120. In some embodiments, more than one port may be located between the distal and proximal ends of the catheter adapter 3120. In some embodiments, the catheter adapter 3120 may include at least one lumen extending through the distal and proximal ends. Any lumen defined by the catheter can be sealed at the proximal end of the catheter adapter 3120.

[0022] In some non-limiting embodiments or aspects, the catheter assembly 3000 may include a catheter 3220 extending distally. In some embodiments, the catheter 3220 may include a peripheral intravenous catheter, a midline catheter, or a peripherally inserted central catheter. As known to those skilled in the art, the catheter 3220 may be formed of any suitable material and may have any useful length. In some non-limiting embodiments or aspects, the catheter assembly 3000 may include any number of fluid conduits, such as fluid conduits 3400, extending from any port. These fluid conduits may be formed of any suitable material known to those skilled in the art and may have distal and proximal ends, and may be coupled to any port on the catheter adapter 3120. In a non-limiting embodiment, the catheter adapter 3120 may have an NFC 2000 coupled thereto.

[0023] In some non-limiting embodiments or aspects, the catheter assembly 3000 may include an extension kit (integrated into or detachably coupled to the catheter adapter 3120) comprising a fluid conduit (e.g., fluid conduit 3400). Extension kits are known to those skilled in the art and are available, for example, from Becton Dickinson. In some non-limiting embodiments or aspects, the fluid conduit 3400 may include a Luer connection at one end. In some non-limiting embodiments or aspects, the extension kit may include a clamp to allow closure of the fluid conduit 3400. The clamp and fluid conduit may be formed from any suitable material known to those skilled in the art.

[0024] The conduit assembly 3000 may include NFC 2000 and / or fluid conduit 3400, such as Figure 2A As shown. Figure 2B As shown, a suitable NFC 2000 may include any split-septum connector and / or a connector with a direct fluid path. NFC is known to those skilled in the art and is available, for example, from Becton Dickinson under the trade names Q-SYTE and SMARTSITE. Although Figures 1A to 2B The non-limiting embodiments shown depict an NFC arranged in a particular configuration, but those skilled in the art will understand that suitable NFCs can also be arranged in other configurations. In a non-limiting embodiment, the NFC includes a diaphragm (not shown), such as a self-healing diaphragm. In a non-limiting embodiment, the diaphragm is a slit-type diaphragm. As will be described below, the medical device 1000 can be reversibly coupled to the NFC 2000 via an end effector 100, and one or more portions of the medical device 1000 can puncture the diaphragm and access the patient's vascular system through a catheter 3220.

[0025] Continue to refer to Figures 1A to 2B The medical device 1000 may include an inner housing and an outer housing 1160 having a proximal end and a distal end. Throughout the illustrated embodiments, it will be apparent to those skilled in the art that the intended effect of the device delivery apparatus described herein is that it can deliver an instrument (e.g., an instrument (e.g., fluid conduit 1500) can be moved from a first configuration to a second configuration in which the instrument does not extend beyond the distal end of the housing 1160, and in the second configuration in which the instrument extends beyond the distal end of the housing 1160). In a non-limiting embodiment, the fluid conduit 1500 can advance from a first position to a second position in which the distal end of the fluid conduit 1500 is located within the medical device 1000, for example, within the housing 1160 and / or the end effector 100, and in the second position, the distal end of the fluid conduit 1500 is located distal to the end effector 100. In embodiments where the medical device 1000 is coupled to a catheter assembly 3000, the distal end of the fluid conduit 1500 may optionally be located distal to the catheter 3220. In a non-limiting embodiment, the medical device 1000 may include one or more inner housings 1170, 1180 to allow compression and / or expansion of these housings such that the total length of one or more housings of the medical device 1000 is less than the total length of the device when it is not being transported.

[0026] Go to Figure 1B The diagram illustrates an end effector 100 for a medical device 1000. The end effector 100 may be a device for connecting the medical device 1000 to a vascular access device (VAD), such as a catheter assembly 3000. The end effector 100 may have a proximal end 102, a distal end 104, and sidewalls defining an interior 110 between the proximal and distal ends, the interior 110 being fluidly coupled to at least one lumen of a catheter adapter 3120, a fluid conduit 3400, an NFC 2000, and / or the interior of a housing 1160 of the medical device 1000 (e.g., a fluid conduit 1500). In a non-limiting embodiment, the end effector 100 includes a protrusion 106 that can puncture a diaphragm of the NFC (e.g., the NFC 2000). In a non-limiting embodiment, the end effector 100 may further include a plurality of arms 108a, 108b for securing the end effector 100 to the conduit assembly 3000, for example, to the NFC 2000.

[0027] Go to Figures 3 to 7 This illustrates a non-limiting embodiment of an end effector, particularly the configuration of the end effector's protrusions and / or Luer elements. Regarding... Figure 3An end effector 200 is shown, which may have a proximal end 202, a distal end 204 (which may be a blunted and / or rounded distal end), and sidewalls defining an interior 210 between the proximal and distal ends. The interior 210 may be fluidly coupled to at least one lumen of a catheter adapter 3120, a fluid conduit 3400, an NFC 2000, and / or the interior of a housing 1160 of a medical device 1000 (e.g., a fluid conduit 1500). In a non-limiting embodiment, the end effector 200 includes protrusions 205, 206, 207 capable of piercing a diaphragm of an NFC (e.g., an NFC 2000). In the illustrated non-limiting embodiment, the outer diameter of the protrusion may vary along the longitudinal axis of the protrusion between a first portion 205, a second portion 206, and a third portion 207. In a non-limiting embodiment, the first portion 205 may have a smaller outer diameter than the second portion 206, and the second portion 206 may have a smaller outer diameter than the third portion 207. In a non-limiting embodiment, the first portion 205 itself may have a varying outer diameter, and may have a smaller outer diameter at its distal end (at or near the distal end 204 of the protrusion) and a larger outer diameter at its proximal end (at or near the second portion 206). In a non-limiting embodiment, the end effector 200 may also include a plurality of arms 208a, 208b for securing the end effector 200 to the conduit assembly 3000, for example, to the NFC 2000. Figure 3 As shown in the non-limiting embodiment depicted, the protrusion may include a transition region 209 located between the second portion 206 and the third portion 207. Figure 3 In the depicted non-limiting embodiment, transition region 209 is a sloped surface, thereby providing a region with a substantially constant slope between the second portion 206 and the third portion 207. Although not shown, those skilled in the art will understand that the slope of transition region 209 may vary along the longitudinal axis of transition region, and / or transition region 209 may have another configuration, such as one or more steps. The passivated and / or rounded distal ends 204 of protrusions 205, 206, 207 and / or transition region 209 provide increased sealing pressure and / or reduced damage to the diaphragm of the NFC (e.g., NFC 2000).

[0028] Go to Figure 4An end effector 300 is shown, which may have a proximal end 302, a distal end 304 (which may be a blunted and / or rounded distal end), and sidewalls defining an interior 310 between the proximal and distal ends. The interior 310 may be fluidly coupled to at least one lumen of a catheter adapter 3120, a fluid conduit 3400, an NFC 2000, and / or the interior of a housing 1160 of a medical device 1000 (e.g., a fluid conduit 1500). In a non-limiting embodiment, the end effector 300 includes protrusions 305, 306, 307 capable of piercing a diaphragm of an NFC (e.g., an NFC 2000). In the illustrated non-limiting embodiment, the outer diameter of the protrusion may vary along the longitudinal axis of the protrusion between a first portion 305, a second portion 306, and a third portion 307. In a non-limiting embodiment, the first portion 305 may have a smaller outer diameter than the second portion 306, and the second portion 306 may have a smaller outer diameter than the third portion 307. In a non-limiting embodiment, the first portion 305 may itself have a varying outer diameter, and may have a smaller outer diameter at its distal end (at or near the distal end 304 of the protrusion) and a larger outer diameter at its proximal end (at or near the second portion 306). In a non-limiting embodiment, the end effector 300 may also include a plurality of arms 308a, 308b for securing the end effector 200 to the conduit assembly 3000, for example, to the NFC 2000. Figure 4 As depicted in the non-limiting embodiments, one or more portions of the protrusion (e.g., second portion 306) may include one or more features 309 for increasing sealing pressure and / or reducing damage to the diaphragm of the NFC (e.g., NFC 2000). In a non-limiting embodiment, one or more features 309 may include one or more indentations in the protrusion (e.g., in first portion 305). In a non-limiting embodiment, the one or more indentations may be inherently concave. The passivated and / or rounded distal ends 304, transition regions, and / or one or more features 309 of the protrusions 305, 306, 307 provide increased sealing pressure and / or reduced damage to the diaphragm of the NFC (e.g., NFC 2000).

[0029] refer to Figure 5An end effector 400 is shown, which may have a proximal end 402, a distal end 404 (which may be a blunted and / or rounded distal end), and sidewalls defining an interior 410 between the proximal and distal ends. The interior 410 may be fluidly coupled to at least one lumen of a catheter adapter 3120, a fluid conduit 3400, an NFC 2000, and / or the interior of a housing 1160 of a medical device 1000 (e.g., a fluid conduit 1500). In a non-limiting embodiment, the end effector 400 includes protrusions 405, 406, 407 capable of piercing a diaphragm of an NFC (e.g., an NFC 2000). In the illustrated non-limiting embodiment, the outer diameter of the protrusion may vary along the longitudinal axis of the protrusion between a first portion 405, a second portion 406, and a third portion 407. In a non-limiting embodiment, the first portion 405 may have a smaller outer diameter than the second portion 406, and the second portion 406 may have a smaller outer diameter than the third portion 407. In a non-limiting embodiment, the first portion 405 itself may have a varying outer diameter, and may have a smaller outer diameter at its distal end (at or near the distal end 404 of the protrusion) and a larger outer diameter at its proximal end (at or near the second portion 406). In a non-limiting embodiment, the end effector 400 may also include a plurality of arms 408a, 408b for securing the end effector 400 to the conduit assembly 3000, for example, to the NFC 2000. Figure 5 As shown in the non-limiting embodiment depicted, the protrusion may include a transition region 409 located between the second portion 406 and the third portion 407. Figure 5 In the non-limiting embodiment shown, the transition region 409 is a sloped surface, thereby providing a region with a substantially constant slope between the second portion 406 and the third portion 407. It is understood that... Figure 5 The embodiment shown differs from the one shown at least in the longitudinal distance occupied by the transition region 409. Figure 3 The embodiment shown. Although not shown, those skilled in the art will understand that the slope of the transition region 409 may vary along the longitudinal axis of the transition region. The passivated and / or rounded distal ends 404 of the protrusions 405, 406, 407 and / or the transition region 409 provide increased sealing pressure and / or reduced damage to the diaphragm of the NFC (e.g., NFC 2000).

[0030] refer to Figure 6An end effector 500 is shown, which may have a proximal end 502, a distal end 504, and sidewalls of a defined interior 510 between the proximal and distal ends, the interior 510 being fluidly coupled to at least one lumen of a catheter adapter 3120, a fluid conduit 3400, an NFC 2000, and / or the interior of a housing 1160 of a medical device 1000 (e.g., a fluid conduit 1500). In a non-limiting embodiment, the end effector 500 includes protrusions 506, 507 capable of piercing a diaphragm of an NFC (e.g., an NFC 2000). In the illustrated non-limiting embodiment, the outer diameter of the protrusion may vary along the longitudinal axis of the protrusion between a first portion 506 and a second portion 507. In a non-limiting embodiment, the first portion 506 may have a smaller outer diameter than the second portion 507. In a non-limiting embodiment, for example as shown herein, the distal end 504 of the protrusions 506, 507 may be a rounded distal end. In a non-limiting embodiment, the end effector 500 may further include a plurality of arms 508a, 508b for securing the end effector 500 to the conduit assembly 3000, for example, to the NFC 2000. Figure 6 As shown in the non-limiting embodiment depicted, the protrusion may include a transition region located between the first portion 506 and the second portion 507. The rounded distal ends 504 and / or transition regions of the protrusions 506 and 507 provide increased sealing pressure and / or reduce damage to the diaphragm of the NFC (e.g., NFC 2000).

[0031] refer to Figure 7 An end effector 600 is shown, which may have a proximal end 602, a distal end 604 (which may be a blunted and / or rounded distal end), and sidewalls of a defined interior 610 located between the proximal and distal ends. The interior 610 may be fluidly coupled to at least one lumen of a catheter adapter 3120, a fluid conduit 3400, an NFC 2000, and / or the interior of a housing 1160 of a medical device 1000 (e.g., a fluid conduit 1500). In a non-limiting embodiment, the end effector 600 includes a protrusion 607 capable of piercing a diaphragm of the NFC (e.g., the NFC 2000). In the illustrated non-limiting embodiment, the outer diameter of the protrusion may vary only at the distal end 604. In a non-limiting embodiment, the end effector 600 may also include a plurality of arms 608a, 608b for securing the end effector 600 to a catheter assembly 3000, such as to the NFC 2000. The distal end 604 of the protrusion 607 provides increased sealing pressure and / or reduces damage to the diaphragm of the NFC (e.g., NFC 2000).

[0032] Go to Figures 8A to 8CA non-limiting embodiment of the end effector is shown. Regarding... Figure 8A An end effector 700 is shown, which may have a proximal end 702, a distal end 704 (which may be a blunted and / or rounded distal end), and sidewalls defining an interior between the proximal and distal ends, the interior being fluidly coupled to at least one lumen of a catheter adapter 3120, a fluid conduit 3400, an NFC 2000, and / or the interior of a housing 1160 of a medical device 1000 (e.g., a fluid conduit 1500). The end effector 700 includes a protrusion capable of piercing a diaphragm of the NFC (e.g., the NFC 2000). In the non-limiting embodiment shown, as Figures 3 to 7 As shown and as described above, the outer diameter of the protrusion can vary. In a non-limiting embodiment, the end effector 700 may further include a plurality of arms 708a, 708b for securing the end effector 700 to the conduit assembly 3000, for example, to the NFC 2000. In the illustrated non-limiting embodiment, the interior may have a varying inner diameter along the longitudinal axis of the end effector 700. For example, the interior may have a first portion 710, a second portion 714, and a third portion 716, each of which may have a different inner diameter. For example, the first portion 710 may have a larger inner diameter than the second portion 714, and the second portion 714 may have a larger inner diameter than the third portion 716. In a non-limiting embodiment, the inner diameter of the interior may have a constant slope among one or more of the first portion 710, the second portion 714, and the third portion 716. In a non-limiting embodiment, the inner diameter may have different slopes among one or more of the first portion 710, the second portion 714, and the third portion 716. In a non-limiting embodiment, one or more stepped regions 712 may be included at the transition between the first portion 710 and the second portion 714 and / or at the transition between the second portion 714 and the third portion 716.

[0033] about Figures 8B to 8C An end effector 800 is shown, which may have a proximal end 802, a distal end 804 (which may be a blunted and / or rounded distal end), and sidewalls defining an interior between the proximal and distal ends, the interior being fluidly coupled to at least one lumen of a catheter adapter 3120, a fluid conduit 3400, an NFC 2000, and / or the interior of a housing 1160 of a medical device 1000 (e.g., a fluid conduit 1500). The end effector 800 includes a protrusion capable of piercing a diaphragm of the NFC (e.g., the NFC 2000). In the non-limiting embodiment shown, as Figures 3 to 7As shown and as described above, the outer diameter of the protrusion can vary. In a non-limiting embodiment, the end effector 800 may further include a plurality of arms 808a, 808b for securing the end effector 800 to the conduit assembly 3000, for example, to the NFC 2000. In the illustrated non-limiting embodiment, the interior may have a varying inner diameter along the longitudinal axis of the end effector 800. For example, the interior may have a first portion 810, a second portion 814, and a third portion 818, each of which may have a different inner diameter. For example, the first portion 810 may have a larger inner diameter than the second portion 814, and the second portion 814 may have a larger inner diameter than the third portion 818. In a non-limiting embodiment, the inner diameter of the interior may have a constant slope among one or more of the first portion 810, the second portion 814, and the third portion 818. In a non-limiting embodiment, the inner diameter may have different slopes among one or more of the first portion 810, the second portion 814, and the third portion 818. In a non-limiting embodiment, one or more stepped regions may be included at the transition between the first portion 810 and the second portion 814 and / or at the transition between the second portion 814 and the third portion 818.

[0034] like Figure 8C As shown more clearly in the non-limiting embodiment, the interior of the end effector 800 may include one or more channels 816 extending along the longitudinal axis of the end effector 800, but not extending the entire length of the longitudinal axis (e.g., as shown in the diagram). Figure 8B (As shown). In a non-limiting embodiment, a plurality of channels 816 surround the second portion 814 through which the instruments of the medical device 1000 can pass. Figures 8A to 8C The internal structure of the end effector shown is believed to provide improved formability and manufacturability.

[0035] Go to Figure 9A non-limiting embodiment of an end effector 900 is shown, which may have a proximal end 902, a distal end 904 (which may be a blunted and / or rounded distal end), and sidewalls defining an interior between the proximal and distal ends, the interior being fluidly coupled to at least one lumen of a catheter adapter 3120, a fluid conduit 3400, an NFC 2000, and / or the interior of a housing 1160 of a medical device 1000 (e.g., a fluid conduit 1500). In a non-limiting embodiment, the end effector 900 includes protrusions 905, 906 that can pierce a diaphragm of an NFC (e.g., an NFC 2000). Protrusions 905, 906 may have any configuration disclosed herein, including varying diameters and / or transition regions. In the shown non-limiting embodiment, the outer diameter of the protrusion may vary along the longitudinal axis of the protrusion between a first portion 905 and a second portion 906. In a non-limiting embodiment, the first portion 905 may have a smaller outer diameter than the second portion 906. In a non-limiting embodiment, the first portion 905 itself may have a varying outer diameter, and may have a smaller outer diameter at its distal end (at or near the distal end 904 of the protrusion) and a larger outer diameter at its proximal end (at or near the second portion 906). In a non-limiting embodiment, the end effector 900 may also include a plurality of arms 908a, 908b for securing the end effector 900 to the conduit assembly 3000, for example, to the NFC 2000. Figure 9 As shown in the non-limiting embodiment depicted, the protrusion may include a transition region 909 located between the first portion 905 and the second portion 906. The passivated and / or rounded distal ends 904 of the protrusions 905 and 906 and / or the transition region 909 provide increased sealing pressure and / or reduced damage to the diaphragm of the NFC (e.g., NFC 2000). Continuing to refer to... Figure 9 In a non-limiting embodiment, the end effector 900 includes a Luer member for assisting in securing the end effector 900 to the conduit assembly 3000, such as to an NFC (e.g., NFC 2000). In a non-limiting embodiment, the Luer member 907 is a threaded Luer member.

[0036] Although this disclosure has been described in detail for illustrative purposes based on embodiments or aspects currently considered most practical and preferred, it should be understood that such detailed description 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 medical device, characterized by The medical device includes: An instrument having a proximal end and a distal end; A guide, configured to movably receive the instrument and having a housing having a proximal end, a distal end, and sidewalls defining an internal volume located between the proximal end and the distal end of the housing; and An end effector, disposed at the distal end of the housing, configured to connect the guide to an intravenous line, and comprising: A protrusion having a proximal end, a distal end, and a sidewall located between the proximal end and the distal end of the protrusion, the sidewall having a longitudinal axis, the sidewall having a varying outer diameter and defining an interior, the interior being configured to be in fluid communication with the internal volume of the guide and the intravenous tubing; and At least one locking element, the at least one locking element being configured to secure the end effector to the intravenous line.

2. The medical device of claim 1, wherein, The at least one locking element includes a Luer connector.

3. The medical device of claim 2, wherein, The Luer connector includes a threaded Luer element.

4. The medical device of claim 1, wherein, The at least one locking element includes a plurality of arms configured to grip the intravenous line.

5. The medical device of claim 1, wherein, The distal end of the protrusion is a blunted distal end.

6. The medical device according to claim 1, characterized in that, The distal end of the protrusion is a rounded distal end.

7. The medical device according to claim 1, characterized in that, The sidewall of the protrusion includes one or more first portions having a first outer diameter and one or more second portions having a second outer diameter.

8. The medical device according to claim 7, characterized in that, The first outer diameter is larger than the second outer diameter.

9. The medical device according to claim 7, characterized in that, The one or more first portions are arranged close to the one or more second portions.

10. The medical device according to claim 7, characterized in that, The sidewall of the protrusion includes one or more transition regions located between the one or more first portions and the one or more second portions.

11. The medical device according to claim 10, characterized in that, The one or more transition areas include one or more steps.

12. The medical device according to claim 10, characterized in that, The one or more transition regions include inclined surfaces.

13. The medical device according to claim 1, characterized in that, The sidewall of the protrusion includes an outer diameter that varies in at least three regions between the proximal end and the distal end of the protrusion along the longitudinal axis.

14. The medical device according to claim 1, characterized in that, The sidewall of the protrusion includes one or more notches.

15. The medical device according to claim 14, characterized in that, The one or more notches are concave notches.

16. A medical system, characterized in that, The medical system includes: A catheter adapter including a proximal end, a distal end, and a sidewall defining a fluid flow path between the proximal end and the distal end, the catheter adapter including a needle at the distal end of the catheter adapter and at least one connector at the proximal end of the catheter adapter; and Medical device, the medical device comprising: An instrument having a proximal end and a distal end; A guide, configured to movably receive the instrument and having a housing having a proximal end, a distal end, and sidewalls defining an internal volume located between the proximal end and the distal end of the housing; and An end effector, disposed at the distal end of the housing, configured to connect the guide to the conduit adapter, and comprising: A protrusion having a proximal end, a distal end, and a sidewall located between the proximal end and the distal end of the protrusion, the sidewall having a longitudinal axis, the sidewall having a varying outer diameter and defining an interior, the interior being configured to be in fluid communication with the internal volume of the guide and the fluid flow path of the conduit adapter; and At least one locking element, the at least one locking element being configured to secure the end effector to the at least one connector of the conduit adapter.

17. The medical system according to claim 16, characterized in that, The connector is a pinless connector.

18. The medical system according to claim 16, characterized in that, The at least one locking element includes a Luer connector.

19. The medical system according to claim 18, characterized in that, The Luer connector includes a threaded Luer element.

20. The medical system according to claim 16, characterized in that, The at least one locking element includes a plurality of arms configured to grip the at least one connector.

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