Guidewire stabilization system for rapid insertion central catheter (RICC) placement systems
Patent Information
- Application Number
- JP2024523608
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2021-10-21
- Filing Date
- 2022-10-20
- Publication Date
- 2025-09-30
AI Technical Summary
Existing rapid insertion central venous catheter (RICC) placement systems face challenges in stabilizing the guidewire during needle withdrawal, leading to potential movement and dislodgment within the vasculature, which compromises the integrity of the access site.
A guidewire stabilization system is integrated into the RICC deployment system, featuring a housing with a stabilization mechanism that transitions between locked and unlocked positions to securely grip the guidewire, utilizing actuators, levers, and cams to maintain the guidewire's position relative to the housing, preventing axial movement.
The system effectively stabilizes the guidewire during needle withdrawal, reducing movement and ensuring the guidewire remains in place, thereby maintaining access site patency and facilitating smooth catheter placement.
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Abstract
Description
[Technical field]
[0001] The present disclosure relates to a guidewire stabilization system for a rapid insertion central catheter (RICC) placement system. Summary of the Invention
[0002] Briefly summarized, embodiments disclosed herein relate to a guidewire stabilization system and associated methods for a rapid insertion central venous catheter (RICC) placement system. When placing a catheter, such as a RICC catheter, it can be advantageous to obtain and stabilize venous access as soon as possible after venipuncture. To accomplish this, the distal tip of the guidewire can reside within the needle lumen during venipuncture. Once venous access has been confirmed, the guidewire can be advanced into the vasculature to maintain patency of the access site. The needle can then be removed, preferably leaving the guidewire in place.
[0003] Some RICC placement systems use a slotted needle with a sheath disposed thereover. As the needle is withdrawn proximally, the distal tip of the guidewire can remain in place within the vasculature and a portion of the guidewire can pass through the needle slot. The sheath can cover the slot and maintain the integrity of the needle lumen, for example to prevent fluid leakage through the slot. As the guidewire passes through the needle slot, it can tear the sheath. However, forces acting on the guidewire as it passes through the needle slot can shift the position of the guidewire distal tip within the vasculature. Embodiments disclosed herein relate to a guidewire stabilization system coupled with a RICC catheter placement system and configured to stabilize the guidewire in place as the needle is withdrawn proximally from the access site.
[0004] Disclosed herein is a catheter placement system comprising: a needle extending along a longitudinal axis and supported by a needle hub, the needle defining a needle lumen and including an opening extending through a wall of the needle proximate the hub and a slot extending from the opening to a distal tip of the needle; a guidewire having a distal tip extending through the opening and into the needle lumen; and a guidewire stabilization system comprising: a housing coupled to the needle hub and defining a needle channel, the needle channel having a portion of the needle disposed therethrough; and a stabilization mechanism transitionable between a locked position and an unlocked position, the stabilization mechanism configured to grip a portion of the guidewire in the locked position to stabilize the guidewire relative to the housing as the needle is withdrawn proximally from the needle channel of the housing.
[0005] In some embodiments, the stabilization mechanism is biased toward the unlocked position and includes an actuator button, the actuator button configured to be actuated to transition the stabilization mechanism from the unlocked position to the locked position. In some embodiments, the actuator button is further configured to disengage the needle hub from the housing. In some embodiments, the stabilization mechanism further includes a first lever and a second lever, each pivotally coupled to the housing, the first lever defining a first actuator button and the second lever defining a second actuator button. In some embodiments, the first gripping surface of the first lever and the second gripping surface of the second lever abut the guidewire in the locked position to prevent axial movement of the guidewire.
[0006] In some embodiments, one or both of the first and second gripping surfaces are in a spaced apart relationship from the guidewire in the unlocked position. In some embodiments, one or both of the first and second gripping surfaces engage the guidewire in the unlocked position to allow the guidewire to slide axially from the first position to the second position and to maintain the guidewire in the second position until repositioned. In some embodiments, one or both of the first and second levers comprise a first material and the gripping surfaces comprise a second material, the second material being different from the first material and having a high coefficient of friction compared to the first material.
[0007] In some embodiments, the second material includes one of a plastic, a polymer, an elastomer, a rubber, or a silicone rubber. In some embodiments, the first gripping surface comprises one of a first protrusion or a first detent configured to engage one of a second protrusion or a second detent disposed on the second gripping surface. In some embodiments, the stabilization mechanism comprises a first lever hingedly coupled to the housing, the first lever defining a gripping surface configured to extend into the guidewire channel of the housing and abut the guidewire in the locked position. In some embodiments, the gripping surface is configured to deflect a portion of the guidewire from a straight configuration to a non-straight configuration to inhibit axial movement of the guidewire in the locked position.
[0008] In some embodiments, the gripping surface is configured to compress a portion of the guidewire against a wall of the guidewire channel in the locked position to inhibit axial movement of the guidewire. In some embodiments, the stabilization mechanism comprises a clamp having a gripping surface, the clamp being slidably engaged with the housing along a first axis between the locked and unlocked positions, the first axis extending perpendicular to a second axis of the guidewire, and the gripping surface being at an angle to the first axis. In some embodiments, the gripping surface engages a portion of the guidewire in the locked position to compress the portion of the guidewire against a wall of the guidewire channel along a third axis extending at an angle to both the first and second axes.
[0009] In some embodiments, the stabilization system comprises a cam rotatable between a locked position and an unlocked position, the cam comprising a first notch that aligns with the guidewire channel in the unlocked position and a second notch that aligns with the guidewire channel in the locked position, the second notch configured to compress a portion of the guidewire against a wall of the guidewire channel to prevent axial movement of the guidewire in the locked position. In some embodiments, the cam is bistable in both the locked and unlocked positions. In some embodiments, the cam further comprises a lever extending from the cam and configured to indicate to a user that the cam is in one of the locked or unlocked positions.
[0010] In some embodiments, the stabilization system further comprises an inner housing slidably engaged with the housing channel of the housing and configured to be urged proximally when the needle is withdrawn to bias the arm of the inner housing from the unlocked position to the locked position to inhibit axial movement of the guidewire. In some embodiments, the inner housing defines a portion of the needle channel and is configured to slidably engage the needle in an interference fit engagement to urge the inner housing proximally when the needle is withdrawn from the needle channel. In some embodiments, the inner housing further comprises a tapered proximal end configured to engage the tapered proximal end of the housing channel to bias the arm to the locked position when the needle is withdrawn from the needle channel.
[0011] In some embodiments, the inner housing comprises a first arm defining a first gripping surface and a second arm defining a second gripping surface disposed opposite the first gripping surface across an axis of the guidewire, the first and second arms configured to deflect inwardly in the locked position to grip a portion of the guidewire between the first and second arms. In some embodiments, the stabilization mechanism is biased toward the locked position, and the stabilization mechanism comprises an actuator button configured to transition the gripping surface of the stabilization mechanism from the locked position to the unlocked position.
[0012] In some embodiments, the catheter placement system further comprises a clamp arm slidably engaged with the housing between a locked position and an unlocked position, a first surface of the clamp arm defining an actuator button and a second surface of the clamp arm defining a gripping surface configured to compress a portion of the guidewire against a wall of the guidewire channel to prevent axial movement of the guidewire in the locked position, hi some embodiments, the catheter placement system further comprises a compression spring configured to bias the clamp arm to the locked position.
[0013] Also disclosed is a method of stabilizing a guidewire during placement of a catheter, the method including accessing the vasculature with a needle supported by a needle hub and defining a needle lumen, the needle having an opening extending through a wall of the needle proximate the hub and a slot extending from the opening to a distal tip of the needle, advancing a distal tip of the guidewire through the needle lumen and into the vasculature, transitioning a guidewire stabilizing system to a locked position to prevent axial movement of the guidewire relative to a housing of the guidewire stabilizing system, and withdrawing the needle proximally from the vasculature.
[0014] In some embodiments, the method further includes actuating an actuator button to transition the guidewire stabilization system from a locked position to an unlocked position, where the guidewire stabilization system is biased toward the unlocked position. In some embodiments, the method further includes actuating an actuator button to disengage the needle hub from the housing. In some embodiments, the method further includes applying opposing forces to the guidewire stabilization system perpendicular to the axis of the guidewire to transition the first and second levers of the guidewire stabilization system to the locked position.
[0015] In some embodiments, the method further includes engaging a first gripping surface of the first lever and a second gripping surface of the second lever with the guidewire in the locked position to prevent axial movement of the guidewire. In some embodiments, one or both of the first gripping surface and the second gripping surface engage the guidewire in the unlocked position to allow the guidewire to slide axially from the first position to the second position and maintain the guidewire in the second position until repositioned. In some embodiments, the method further includes abutting a gripping surface of a guidewire stabilization system against the guidewire to deflect a portion of the guidewire from a straight configuration in the unlocked position to a non-straight configuration in the locked position.
[0016] In some embodiments, the method further includes abutting a gripping surface of the guidewire stabilization system against the guidewire and compressing a portion of the guidewire against a wall of the guidewire channel of the housing in the locked position. In some embodiments, the method includes sliding a clamp having a gripping surface along a first axis extending perpendicular to a second axis of the guidewire to deflect a portion of the guidewire along a third axis extending at an angle to both the first axis and the second axis, and gripping a portion of the guidewire against the wall of the guidewire channel in the locked position, the gripping surface being angled relative to the first axis and the third axis.
[0017] In some embodiments, the method further includes rotating the cam between an unlocked position and a locked position about an axis extending parallel to the axis of the guidewire, the cam comprising a lever extending from the cam, the cam being bistable in the unlocked and locked positions. In some embodiments, the method further includes sliding the inner housing proximally relative to the housing to deflect arms of the inner housing to abut the gripping surfaces against the guidewire to prevent axial movement of the guidewire. In some embodiments, the method further includes engaging a tapered proximal end of the inner housing with a tapered proximal end of the housing channel of the housing to deflect the arms inwardly to the locked position to prevent axial movement of the guidewire.
[0018] In some embodiments, transitioning the guidewire stabilization system to the locked position includes biasing the clamp arm to the locked position with a biasing member, and transitioning the guidewire stabilization system to the unlocked position includes applying a force to the clamp arm to overcome the force of the biasing member and slide the clamp arm out of engagement with the guidewire.
[0019] A more particular description of the present disclosure will be made by reference to specific embodiments thereof which are illustrated in the accompanying drawings, it being recognized that these drawings depict only typical embodiments of the invention and therefore should not be considered as limiting the scope of the invention, exemplary embodiments of the invention will be described and explained with additional specificity and detail with the aid of the accompanying drawings, in which: [Brief description of the drawings]
[0020] [Figure 1A] 1 is a perspective view of an exemplary RICC deployment system in a deployed state, according to embodiments disclosed herein. [Figure 1B] 1 is a perspective view of an exemplary RICC deployment system in a folded state ready for use, according to embodiments disclosed herein. [Figure 1C] FIG. 2 is a top view of an exemplary RICC deployment system in a folded state ready for use, according to embodiments disclosed herein. [Figure 2A] 1B is a top view of a needle, sheath and guidewire assembly of the RICC deployment system of FIG. 1A according to an embodiment disclosed herein. [Figure 2B] 1B is a top view of a slotted needle of the RICC deployment system of FIG. 1A according to an embodiment disclosed herein. [Figure 3A] 1 is a perspective view of a guidewire stabilization system according to an embodiment disclosed herein. [Figure 3B] 1 is a perspective view of a guidewire stabilization system according to an embodiment disclosed herein. [Figure 4A] 1 is a perspective view of a pinch actuation guidewire stabilization system according to an embodiment disclosed herein. [Figure 4B] 1 is a perspective view of a pinch actuation guidewire stabilization system according to an embodiment disclosed herein. [Figure 4C] 4B is an enlarged detail view of the pinch actuation guidewire stabilization system of FIG. 4A according to an embodiment disclosed herein. [Figure 4D]4B is an enlarged detail view of the pinch actuation guidewire stabilization system of FIG. 4A according to an embodiment disclosed herein. [Figure 4E] 4B is an enlarged detail view of the pinch actuation guidewire stabilization system of FIG. 4A according to an embodiment disclosed herein. [Figure 5A] 1 is a perspective view of a cam guidewire stabilization system according to an embodiment disclosed herein. [Figure 5B] 5B is a cross-sectional view of the cam guidewire stabilization system of FIG. 5A according to an embodiment disclosed herein. [Figure 5C] 5B is a cross-sectional view of the cam guidewire stabilization system of FIG. 5A according to an embodiment disclosed herein. [Figure 6A] 1 is a longitudinal cross-sectional view of a crimp guidewire stabilization system according to an embodiment disclosed herein. [Figure 6B] 1 is a longitudinal cross-sectional view of a crimp guidewire stabilization system according to an embodiment disclosed herein. [Figure 7A] 1 is a longitudinal cross-sectional view of a compression guidewire stabilization system according to an embodiment disclosed herein. [Figure 7B] 1 is a longitudinal cross-sectional view of a compression guidewire stabilization system according to an embodiment disclosed herein. [Figure 8A] 1 is a transverse cross-sectional view of a clamp guidewire stabilization system according to an embodiment disclosed herein. [Figure 8B] 1 is a transverse cross-sectional view of a clamp guidewire stabilization system according to an embodiment disclosed herein. [Figure 9A] 1 is a cross-sectional plan view of a needle actuated guidewire stabilization system according to an embodiment disclosed herein. [Figure 9B] 1 is a cross-sectional plan view of a needle actuated guidewire stabilization system according to an embodiment disclosed herein. [Figure 10A] 1 is a transverse cross-sectional view of a spring-actuated guidewire stabilization system according to an embodiment disclosed herein. [Figure 10B]1 is a transverse cross-sectional view of a spring-actuated guidewire stabilization system according to an embodiment disclosed herein. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0021] Before certain specific embodiments are disclosed in more detail, it should be understood that the specific embodiments disclosed herein do not limit the scope of the concepts provided herein, and it should also be understood that certain embodiments disclosed herein may have features that can be easily separated from the specific embodiment and, optionally, combined with or substituted for features of any of the other several embodiments disclosed herein.
[0022] With regard to the terms used herein, it should also be understood that the terms are intended to describe certain particular embodiments, and that the terms do not limit the scope of the concepts provided herein. Ordinal numbers (e.g., first, second, third, etc.) are generally used to distinguish or identify different features or steps within a group of features or steps, and do not impose any order or numerical limitations. For example, the "first", "second", and "third" features or steps do not necessarily have to appear in that order, and a particular embodiment including such features or steps is not necessarily limited to three features or steps. Designations such as "left", "right", "up", "down", "front", "rear", etc. are used for convenience and are not intended to imply, for example, a particular fixed position, orientation, or direction. Instead, such designations are used to reflect, for example, a relative position, orientation, or direction. The singular forms "one", "one", and "the" also include plural references unless the context clearly dictates otherwise.
[0023] In the following description, the terms "or" and "and / or" as used herein should be construed as being inclusive or meaning any one or any combination. As an example, "A, B or C" or "A, B and / or C" means "any of the following: A, B, C, A and B, A and C, B and C, A, B and C." Exceptions to this definition will occur only if combinations of elements, components, features, steps or operations are in some respect essentially mutually exclusive.
[0024] With respect to "proximal," for example, the "proximal portion" or "proximal end portion" of a needle disclosed herein includes the portion of the needle intended to be near the clinician when the needle is used on a patient. Similarly, for example, the "proximal length" of a needle includes the length of the needle intended to be near the clinician when the needle is used on a patient. For example, the "proximal end" of a needle includes the end of the needle intended to be near the clinician when the needle is used on a patient. The proximal portion, proximal end portion, or proximal length of a needle can include the proximal end of the needle, but the proximal portion, proximal end portion, or proximal length of a needle need not include the proximal end of the needle. That is, unless otherwise suggested by context, the proximal portion, proximal end portion, or proximal length of a needle is not the terminal portion or terminal length of the needle.
[0025] With respect to "distal," for example, a "distal portion" or "distal end portion" of a needle disclosed herein includes the portion of the needle that is intended to be near or within a patient when the needle is used with a patient. Similarly, for example, a "distal length" of a needle includes the length of the needle that is intended to be near or within a patient when the needle is used with a patient. For example, a "distal end" of a needle includes the end of the needle that is intended to be near or within a patient when the needle is used with a patient. A distal portion, distal end portion, or distal length of a needle can include the distal end of the needle, but a distal portion, distal end portion, or distal length of a needle need not include the distal end of the needle. That is, unless otherwise suggested by context, a distal portion, distal end portion, or distal length of a needle is not the terminal portion or terminal length of the needle.
[0026] 1A-1C, a longitudinal axis extends substantially parallel to the axis of needle 20. A lateral axis extends perpendicular to the longitudinal axis, and a transverse axis extends perpendicular to both the longitudinal and lateral axes.
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. 1A-1C show details of an exemplary rapid insertion central catheter (RICC) deployment system ("deployment system") 10, which generally includes a needle 20, a guidewire 30, a syringe system 40, and a RICC catheter 50. The RICC catheter 50 may generally include a catheter 52 supported at a proximal end by a catheter hub ("hub") 60. The hub 60 may include one or more extension legs 62 extending proximally from the hub 60. Each of the one or more extension legs 62 may be in fluid communication with a lumen of the catheter 52. The catheter 52 may include a first portion 54 disposed distally and defining a single lumen, a second portion 56 disposed proximally and defining two or more lumens, and a dilator portion 58 disposed between the first portion 54 and the second portion 56. The guidewire 30 may extend from the proximal end of the extension leg 62 through the lumen of the RICC catheter 50 to the distal tip of the first section 54 .
[0028] In an exemplary method of placing the RICC catheter 50, the needle 20 can be pushed distally into the patient to access the vasculature and create an insertion site. The syringe system 40 or similar device can retract the fluid flow proximally through the needle lumen 22 to observe color and / or pulsatile flow and confirm proper vascular access. Once proper vascular access is confirmed, the guidewire 30 can then be advanced through the needle lumen 22 into the vasculature to maintain patency of the insertion site. The needle 20 and syringe system 40 assembly can then be withdrawn proximally. In one embodiment, the distal tip of the guidewire 30 can reside within the needle lumen 22 during venipuncture, which can facilitate access to the vasculature and maintain patency of the insertion site once venous access is confirmed. In one embodiment, the needle 20 can include a slot 26 configured to facilitate removal of the needle 20 and syringe system 40 from the guidewire 30 while leaving the guidewire 30 in place, as described in more detail herein.
[0029] The RICC 50 may then be advanced over the guidewire 30 into the vasculature. A first portion 54 of the RICC 50, having only a single lumen and defining a relatively small outer diameter, may enter the vasculature over the guidewire 30. The dilator portion 58 may then expand the insertion site to allow a larger diameter second portion 56, defining two or more lumens, to enter the vasculature. Once the RICC 50 is in place, the guidewire 30 may be withdrawn proximally.For example, further details and embodiments of the RICC system 10 may be found in U.S. Pat. No. 10,376,675, U.S. Patent Application Publication No. 2019 / 0255294, U.S. Patent Application Publication No. 2021 / 0069471, U.S. Patent Application Publication No. 2021 / 0085927, U.S. Patent Application Publication No. 2021 / 0113809, U.S. Patent Application Publication No. 2021 / 0113810, U.S. Patent Application Publication No. 2021 / 0121661, U.S. Patent Application Publication No. 2021 / 0133820, U.S. Patent Application Publication No. 2021 / 0133830, U.S. Patent Application Publication No. 2021 / 0133840, U.S. Patent Application Publication No. 2021 / 0133850, U.S. Patent Application Publication No. 2021 / 0133860, U.S. Patent Application Publication No. 2021 / 0133870, U.S. Patent Application Publication No. 2021 / 0133890, U.S. Patent Application Publication No. 2021 / 0133880, U.S. Patent Application Publication No. 2021 / 0133891, U.S. Patent Application Publication No. 2021 / 0133892, U.S. Patent Application Publication No. 2021 / 0133893, U.S. Patent Application Publication No. 2021 / 0133894, U.S. Patent Application Publication No. 2021 / 0133895, U.S. Patent Application Publication No. 2021 / 0133896, U.S. Patent Application Publication No. 2 No. 228843, U.S. Patent Application Publication No. 2021 / 0283368, U.S. Patent Application Publication No. 2021 / 0283381, U.S. Patent Application Publication No. 2021 / 0322729, U.S. Patent Application Publication No. 2021 / 0330941, U.S. Patent Application Publication No. 2021 / 0330942, U.S. Patent Application Publication No. 2021 / 0361915, U.S. Patent Application Publication No. 2021 / 0379336, U.S. Patent Application Publication No. 2021 / 0402142, U.S. Patent Application Publication No. US Patent Application Publication No. 2021 / 0402149, US Patent Application Publication No. 2021 / 0402153, US Patent Application Publication No. 2021 / 0121667, US Patent Application Publication No. 2022 / 0001138, US Patent Application Publication No. 2022 / 0032013, US Patent Application Publication No. 2022 / 0032014, US Patent Application Publication No. 2022 / 0062528, US Patent Application Publication No. 2022 / 0126064, US Patent Application Publication No. 2022 / 0152368 No. 2022 / 0176081, U.S. Patent Application Publication No. 2022 / 0176082, U.S. Patent Application Publication No. 2022 / 0193376, U.S. Patent Application Publication No. 2022 / 0193377, U.S. Patent Application Publication No. 2022 / 0193378, U.S. Patent Application Publication No. 2022 / 0193379, and U.S. Patent Application Publication No. 2022 / 0296862, each of which is incorporated by reference in its entirety into this application.
[0030] 2A-2B show further details of the slotted needle 20 of the RICC system 10. The needle 20 can define a lumen 22 and can be supported at a proximal end by a needle hub 28. The needle hub 28 can be coupled to a syringe system 40 and can provide fluid communication between the syringe system 40 and the needle lumen 22. In one embodiment, the needle 20 can include a guidewire aperture 24 disposed in a sidewall of the needle 20 proximate the needle hub 28 and in communication with the needle lumen 22. The guidewire aperture 24 can be configured to receive a portion of the guidewire 30 extending through the guidewire aperture 24 and into the needle lumen 22. In one embodiment, the distal tip of the guidewire 30 can be disposed within the needle lumen 22 as the needle 20 accesses the vasculature. Once the needle 20 has accessed the vasculature, the distal tip of the guidewire 30 can extend distal to the distal tip of the needle 20. Advantageously, this allows for rapid stabilization of the insertion site immediately after venipuncture, immobilizing the insertion site and facilitating the placement process.
[0031] In one embodiment, the needle 20 can further include a needle slot 26 extending longitudinally between the guidewire aperture 24 and the distal tip of the needle 20. In one embodiment, the lateral width of the needle slot 26 can be equal to or greater than the diameter of the guidewire 30. Thus, a portion of the guidewire 30 can pass through the needle slot 26 to allow the needle 20 to disengage from the guidewire 30. In one embodiment, the lateral width of the needle slot 26 can be equal to or less than the diameter of the guidewire 30. In one embodiment, a first edge of the needle slot 26 can abut a second edge of the needle slot 26 opposite the first edge across a central longitudinal axis of the needle 20 to define a slit. In one embodiment, the first and second edges of the needle slot 26 can be configured to bend laterally or radially outward to allow a portion of the guidewire 30 to pass through the needle slot 26 to allow the needle 20 to disengage from the guidewire 30.
[0032] In one embodiment, the needle 20 may further include a sheath 70 disposed on an exterior surface of the needle 20. In one embodiment, the sheath 70 may be formed of a plastic, polymer, or similar suitable material. The sheath 70 may fit snugly around the needle 20 over the slot 26 to prevent fluid from passing through the slot 26 and maintain the integrity of the needle lumen 22. In one embodiment, the sheath 70 may include a sheath guidewire opening 74 disposed in a sidewall of the sheath 70 proximate the proximal end of the sheath 70 and aligned with the needle guidewire opening 24 in communication with the needle lumen 22. The sheath guidewire opening 74 may be configured to receive a portion of the guidewire 30 extending through the sheath guidewire opening 74 and into the needle lumen 22.
[0033] In one embodiment, the sheath 70 can include a tear line 72 extending longitudinally between the sheath guidewire opening 74 and the distal end of the sheath 70. The tear line 72 can include a groove, score line, perforation, laser cut line, or similar line of weakness configured to allow the sheath 70 to separate along it as the guidewire 30 is urged through the needle slot 26. In one embodiment, the deployment system 10 can further include a blade configured to cut the sheath 70 along the tear line 72 to facilitate disengaging the guidewire 30 from the needle 20. In one embodiment, the deployment system 10 can include a dowel pin or similar support structure positioned proximal to the guidewire 30 and adjacent to the tear line 72 to support a portion of the guidewire 30 as the sheath 70 is urged over the guidewire 30.
[0034] In an exemplary method of use, the needle 20 and sheath 70 assembly may be pushed distally to form an insertion site as described herein. Fluid flow may flow proximally through the needle 22. The sheath 70 positioned over the slot 26 may prevent fluid from escaping from the lumen 22 through the slot 26. In one embodiment, a vacuum may be applied to the needle lumen 22, for example by the syringe system 40, to draw fluid flow through the needle lumen 22. Advantageously, the sheath 70 may maintain the integrity of the needle lumen 22 to prevent fluid from being drawn through the slot 26, and instead draw fluid through a distal opening of the needle lumen proximate the distal tip. It should be noted that valves or gaskets may be aligned with the sheath guidewire opening 74 and the needle guidewire opening 24 to prevent any fluid leakage through these openings.
[0035] Once vascular access has been confirmed, the needle 20 can be withdrawn proximally. To allow the guidewire 30 to remain in place as the needle 20 is withdrawn proximally, a portion of the guidewire 30 can pass through the slot 26 from the guidewire aperture 24 to the distal end of the needle 20. As the guidewire 30 passes through the slot 26, it can tear the sheath 70 along the tear line 72, allowing the guidewire 30 to separate from the needle 20 and sheath 70 assembly. As will be appreciated, various devices and methods for removing the needle 20 while leaving the guidewire 30 in place within the vasculature are considered to be within the scope of the present invention. Further details and embodiments of such systems can be found in U.S. Patent Application No. 17 / 746,113, filed May 17, 2022, and U.S. Patent Application No. 17 / 883,490, filed August 8, 2022, each of which is incorporated herein by reference in its entirety.
[0036] In one embodiment, the RICC deployment system 10 can include a guidewire stabilization system 100 configured to stabilize the guidewire 30 relative to the insertion site as the needle 20 is withdrawn proximally. Advantageously, the guidewire stabilization system 100 can mitigate any migration of the guidewire 30 within the vasculature or prevent inadvertent removal of the guidewire 30 from the vasculature.
[0037] In one embodiment, as shown in FIGS. 3A-3B, guidewire stabilization system 100 may generally include housing 110 and stabilization mechanism 130. Stabilization mechanism 130 may include one or more actuator buttons ("buttons") 132. In one embodiment, actuation of button 132 may transition stabilization mechanism 130 to a locked position to grip guidewire 30 and prevent movement of guidewire 30 relative to housing 110. In one embodiment, actuation of button 132 may further release needle hub 28 from housing 110. In one embodiment, release of button 132 may transition stabilization mechanism 130 to an unlocked position to allow guidewire 30 to slide relative to housing 110. In one embodiment, release of button 132 may further disengage housing 110 from guidewire 30. In one embodiment, initial actuation of button 132 may transition stabilization mechanism 130 from an unlocked position to a locked position and remain in the locked position after button 132 is released by a user. In one embodiment, a second actuation of button 132 can transition stabilization mechanism 130 from the locked position to the unlocked position. Advantageously, this allows a clinician to continue to grip guidewire 30 and prevent axial movement without maintaining pressure on actuator button 132. In one embodiment, a first actuation of button 132 can also release needle hub 28, and a second actuation of button 132 can release guidewire 30 from housing 110. These and other combinations of actions and actuations are also contemplated as being within the scope of the present invention.
[0038] In one embodiment, either or both of the housing 110 or the button 132 can include gripping features 118 configured to facilitate gripping the housing 110 while the syringe system 40 and / or the needle 20 and sheath 70 assembly is being proximally withdrawn, as shown in FIG. 3B. The gripping features 118 can include one or more bumps, ribs, wings, handles, detents, recesses, or similar structures disposed on the housing 110 and / or the button 132 to facilitate gripping the housing 110. In one embodiment, the gripping features 118 can include a second material that is different from the first material of the housing 110 and provides an increased coefficient of friction. Exemplary second materials can include plastics, polymers, elastomers, rubbers, silicone rubbers, and the like.
[0039] In use, as shown in FIG. 3B, a clinician can grasp the housing 110 and actuate the button 132 with a first hand to grasp the guidewire 30 and stabilize the housing 110 and guidewire 30 assembly against the insertion site. The clinician can then grasp the syringe system 40 and / or needle hub 28 with a second hand, disengage the needle hub 28 from the housing 110, and withdraw the needle 20 proximally to disengage the needle 20 from the guidewire 30. Advantageously, the housing 110 and stabilization mechanism 130 can mitigate movement of the guidewire 30 relative to the vasculature. Additionally, the stabilization system 130 can enable the clinician to stabilize the housing 110, actuate the actuator button 132, and / or disengage the needle hub 28 from the housing 110, or a combination thereof, with one hand or in a single motion. In one embodiment, stabilization mechanism 130 may comprise one or more levers, cams, protrusions and detents, biasing members, gears, arms, wedges, or the like, as described in more detail herein, and may provide a mechanical advantage in gripping guidewire 30. Thus, less force is required for a clinician to activate stabilization mechanism 130 and exert a gripping force on guidewire 30. This may be important where guidewire 30 further comprises a lubricious coating, or the like.
[0040] 4A-4E show details of an embodiment of a guidewire stabilization system 100 with a pinch actuated guidewire stabilization system 430. In one embodiment, the housing 110 can define a needle channel 112 and a guidewire channel 114 in communication with and extending at an angle from the needle channel 112. The needle channel 112 can be configured to receive a portion of the needle 20 passing therethrough. When the needle 20 is engaged with the housing 110, the guidewire opening 24 of the needle 20 can be aligned with the guidewire channel 114. Thus, the guidewire 30 can extend through the guidewire channel 114, through the guidewire opening 24 of the needle 20, and into the needle lumen 22. In one embodiment, the proximal end of the housing 110 can be releasably engaged with the needle hub 28 in an interference fit, press fit, snap fit, or locking fit engagement. In one embodiment, actuating the guidewire stabilization system 430 to grip the guidewire 30 further includes disengaging or unlocking the needle hub 28 from the housing 110. In one embodiment, the proximal end of the needle hub 28 may be releasably engageable with the syringe system 40 via a press fit, a snap fit, a snap fit, a luer lock, a threaded engagement, combinations thereof, or the like.
[0041] In one embodiment, the pinch actuated stabilization system 430 can include one or more levers 432 hingedly coupled to the housing and pivotable between a locked position and an unlocked position. In one embodiment, the pinch actuated stabilization system 430 can include a biasing member configured to bias the stabilization system 430 to the unlocked position. In one embodiment, a surface of the lever 432, e.g., a first surface, can define the actuator button 132. In one embodiment, a surface of the lever 432, e.g., a second surface, can include the gripping feature 118.
[0042] In one embodiment, the pinch actuation stabilization system 430 can include a first lever 432A disposed on a first side of the housing 110 and a second lever 432B disposed on a second side of the housing 110 opposite the first lever 432A across the longitudinal axis. As shown in FIG. 4A, the first lever 432A and the second lever 432A can be aligned along a lateral axis. However, it will be appreciated that the first lever 432A and the second lever 432A can be aligned along other axes, such as a transverse axis or an axis extending at an angle between the first lever 432A and the second lever 432A. Advantageously, the pinch actuation guidewire stabilization system 430 can apply equal and opposing forces to the guidewire 30 when in the locked position to reduce bending or kinking of the guidewire 30 or deviation of the guidewire 30 from the central axis.
[0043] 4C, the levers 432 can include gripping surfaces 434, e.g., a first gripping surface 434A disposed on the first lever 432A and a second gripping surface 434B disposed on the second lever 432B. In one embodiment, the gripping surfaces 434 can contact the guidewire 30 when the stabilization system 430 is in a locked position and can reduce or prevent movement of the guidewire 30 relative to the housing 110. In one embodiment, in the unlocked position, the gripping surfaces 434 can be in a spaced relationship from the guidewire 30 and can allow the guidewire 30 to slide freely relative to the housing 110, e.g., through the guidewire channel 114.
[0044] In one embodiment, in the unlocked position, the gripping surface 434 may contact the guidewire 30 in an interference engagement to allow the guidewire 30 to slide relative to the housing 110, for example through the guidewire channel 114. However, friction between the gripping surface 434 and the guidewire 30 in the unlocked position may prevent the guidewire 30 from sliding freely. In other words, in the unlocked position, a user may place the guidewire 30 in a first position relative to the housing 110, and the guidewire 30 may remain in the first position until repositioned to a second position without actuating the pinch actuation stabilization system 430. In one embodiment, the gripping surface 434 may be formed from the same material as the lever 432 and the housing 110, e.g., a first material. The first material may be a plastic, polymer, metal, alloy, composite, etc., and may exhibit substantially resilient, rigid, or high durometer mechanical properties. In one embodiment, the first material may exhibit little or no elastic deformation when gripping the guidewire 30, and thus the pinch stabilization system 430 may provide increased pressure on the guidewire 30 in the locked position to ensure a secure grip.
[0045] 4D, the gripping surface 434 may include a second material different from the first material of the lever 432 or the housing 110. The second material may have a high coefficient of friction, as described herein. In one embodiment, the second material may be more compliant or have a lower durometer than the first material and may elastically deform around the guidewire 30 when the stabilization system 430 is in the locked position. Advantageously, the gripping surface 434 including the second material may prevent kinking of the guidewire 30 when gripped by the pinch actuation stabilization system 430 and may provide an increased contact area between the gripping surface 434 and the guidewire 30.
[0046] In one embodiment, as shown in FIG. 4E, the gripping surfaces 434 can include protrusions and / or detents. For example, the first gripping surface 434A can include detents and the second gripping surface 434B can include protrusions configured to engage the detents in the locked position. However, it will be appreciated that other shapes, numbers and combinations of protrusions and detents are considered within the scope of the present invention. In one embodiment, the guidewire 30 can be formed from a superelastic material, such as Nitinol. In the locked position, the protrusions and detents can elastically deform the guidewire 30 into a non-linear shape between the first gripping surface 434A and the second gripping surface 434B to provide a secure grip on the guidewire 30. In the unlocked position, the guidewire 30 can return to its original linear shape. In one embodiment, the protrusion or detent surface can engage the guidewire 30 in the unlocked position with an interference fit configured to prevent the guidewire 30 from sliding freely while also allowing the clinician to reposition the guidewire 30 relative to the housing 110, as described herein.
[0047] In an exemplary method of use, as shown in FIG. 4B, a clinician can actuate the stabilization system 430 by applying opposing "clamping" forces to the first and second levers 432A, 432B along an axis extending at an angle to the axis of the guidewire 30 to grip the guidewire 30 between the gripping surfaces 434A, 434B. In one embodiment, actuation of the levers 432A, 432B can disengage the needle hub 28 from the housing 110. The clinician can then retract the needle 20 proximally. The needle 20 can be removed while leaving the guidewire 30 in place. Advantageously, the stabilization system 430 can enable the clinician to stabilize the housing 110, actuate the actuator button 132, and / or disengage the needle hub 28 from the housing 110, or a combination thereof, with one hand or in a single motion. In one embodiment, the housing 110 can include a housing slot 116 extending longitudinally between and communicating an exterior surface, e.g., an underside, of the housing 110 and one or both of the needle channel 112 and the guidewire channel 114. Once the needle 20 is removed, the clinician can release the guidewire 30 by releasing the stabilizing mechanism 430 and disengaging the housing 110 from the guidewire 30 by sliding a portion of the guidewire 30 through the housing slot 116.
[0048] 5A-5C illustrate an embodiment of a cam guidewire stabilization system 530. In one embodiment, the cam stabilization system 530 can include a cam 532 that is rotatably engaged with the housing 110 between an unlocked position (FIGS. 5A, 5B) and a locked position (FIG. 5C). In one embodiment, the cam 532 can rotate about an axis that extends parallel to the axis of the guidewire 30. However, it will be appreciated that the cam 532 can rotate about an axis that extends at an angle relative to the axis of the guidewire 30. In one embodiment, the cam 532 can be stable in one or both of the locked and unlocked positions. In one embodiment, the cam 532 can include a cam lever 534 extending from the cam 532 and configured to provide a mechanical advantage to rotate the cam 532. Additionally, the position of the cam lever 534 relative to the housing 110 can indicate to a user whether the cam is in the locked or unlocked position. In one embodiment, the lever 534 can include one or more symbols, colors, alphanumeric symbols, etc. configured to indicate to a user whether the cam is in a locked or unlocked position.
[0049] In one embodiment, cam 532 can include a first notch 536 and a second notch 538 that extend through cam 532 along a longitudinal axis, i.e., an axis that extends parallel to the axis of guidewire 30 or guidewire channel 114. In the unlocked position, first notch 536 can be aligned with guidewire channel 114 and guidewire 30 (FIG. 5B). In the locked position, second notch 538 can be aligned with guidewire channel 114 and guidewire 30 (FIG. 5C).
[0050] In one embodiment, the first notch 536 can define a diameter greater than the second notch 538. In the unlocked position, the first notch 536 can cooperate with the housing 110 to define a portion of the guidewire channel 114. In one embodiment, the first notch 536 and the housing 110 can define a portion of the guidewire channel 114 having an inner diameter greater than an outer diameter of the guidewire 30. Thus, in the unlocked position, the guidewire 30 can slidably engage the first notch 536. In the locked position, the second notch 538 can cooperate with the housing 110 to define a portion of the guidewire channel 114. In the locked position, a surface of the second notch 528 can compress the guidewire 30 against a surface of the housing 110 to grip the guidewire 30 and prevent axial movement of the guidewire 30. It will be appreciated that while the cam stabilization system 530 may transition between the locked and unlocked positions, i.e., between the first notch 536 and the second notch 538, through the rotational movement shown, other paths of motion, such as linear, elliptical, or multi-directional movements, or axes of rotation, or combinations thereof, are also contemplated within the scope of the present invention.
[0051] 6A-6B illustrate an embodiment of a crimping stabilization mechanism 630, which may include a crimp lever 632 hingedly coupled to the housing 110 and transitional between an unlocked position (FIG. 6A) and a locked position (FIG. 6B). In one embodiment, the lever 632 may be biased toward the unlocked position. In one embodiment, an outer surface of the lever 632 may define the actuation button 132. In one embodiment, an inner surface of the lever 632 may define a gripping surface 634 configured to engage the guidewire 30.
[0052] In use, a clinician can apply force to the actuation button 132 to cause the gripping surfaces 634 to slide radially inward relative to the axis of the guidewire. In one embodiment, the gripping surfaces 634 can extend into the guidewire channel 114. In one embodiment, the gripping surfaces 634 can impinge on the guidewire 30 and deflect a straight portion of the guidewire 30 away from the central axis of the guidewire 30, bending the portion of the guidewire 30 into a non-straight configuration and preventing axial movement of the guidewire 30. The clinician can release the actuation button 132 and transition the lever 632 back to the unlocked position. The guidewire 30 can return to its un-bent, straight shape and slide relative to the housing 110. In one embodiment, the non-straight configuration can include bending, kinking, folding, twisting, pushing, or a combination thereof, the guidewire 30 into a curved path. Advantageously, crimping stabilization mechanism 630 can secure guidewire 30 even when guidewire 30 has a coating or similar lubricant disposed thereon.
[0053] 7A-7B show an embodiment of a compression stabilization mechanism 730 that may include a single lever 732 hingedly coupled to the housing 110 and transitional between an unlocked position (FIG. 7A) and a locked position (FIG. 7B). In one embodiment, the lever 732 may be biased toward the unlocked position. In one embodiment, an outer surface of the lever 732 may define the actuation button 132. In one embodiment, an inner surface of the lever 732 may define a gripping surface 734 configured to engage the guidewire 30.
[0054] In use, a clinician may apply force to the activation button 132 to cause the gripping surface 734 to slide radially inward relative to the axis of the guidewire 30. In one embodiment, the gripping surface 734 may extend into the guidewire channel 114. In one embodiment, the gripping surface 734 may abut a portion of the guidewire 30 and compress the portion of the guidewire 30 against an opposing wall of the guidewire channel 114. In one embodiment, the compression stabilization mechanism 730 may prevent axial movement of the guidewire 30 relative to the housing 110 without bending or kinking the guidewire 30, i.e., maintaining a substantially straight configuration of the guidewire 30 in the locked position. The lever 732 compressing a portion of the guidewire 30 may prevent the guidewire 30 from sliding axially relative to the housing 110. The clinician may release the activation button 132 to allow the lever 732 to transition back to the unlocked position. The guidewire 30 may then slide relative to the housing 110.
[0055] 8A-8B show an embodiment of a clamp stabilization mechanism 830, which may include a clamp arm 832 slidably engaged with the housing 110 along a first axis, e.g., an axis extending at an angle relative to the axis of the guidewire channel 114. In one embodiment, the guidewire 30 may extend substantially longitudinally and the clamp arm 832 may slidably engage the housing 110 along a substantially transverse axis. The clamp arm 832 may be transitionable between an unlocked position (FIG. 8A) and a locked position (FIG. 8B). In one embodiment, the clamp arm 832 may include a biasing member and may be biased toward the unlocked position. In one embodiment, an outer surface of the clamp arm 832 may define an actuation button 132. In one embodiment, an inner surface of the clamp arm 832 may define a gripping surface 834 configured to engage the guidewire 30. In one embodiment, the gripping surface 834 can be angled relative to a first axis, for example, a lateral axis, to provide a wedge-shaped cross-sectional shape.
[0056] In use, a clinician can apply force to the actuation button 132 to force the clamp arm 832 into the housing 110 along a first axis that is substantially perpendicular to the longitudinal axis. In one embodiment, the gripping surface 734 can extend into the guidewire channel 114. The wedge-shaped gripping surface 834 can press a portion of the guidewire 30 along a third axis, e.g., a transverse axis, that extends at an angle to both the first axis (lateral axis) of the clamp arm and the second axis (longitudinal) of the guidewire 30. The gripping surface can press a portion of the guidewire 30 against the wall of the guidewire channel 114 to clamp the guidewire 30 against the wall and prevent axial movement of the guidewire 30 relative to the housing 110. The clinician may release the activation button 132 and allow the clamp arm 832 to transition back to the unlocked position, releasing the guidewire 30 and allowing the guidewire 30 to slide relative to the housing 110.
[0057] 9A-9B show an embodiment of a needle actuation stabilization mechanism 930. In one embodiment, a clinician can separate the needle hub 28 from the housing 110 and withdraw the needle 20 from the needle channel 112. As the needle 20 is withdrawn proximally, it can engage the inner needle housing 910 and transition the needle actuation stabilization mechanism 930 to a locked position. Once the needle 20 is fully disengaged from the housing 110, the inner housing 910 can transition back to an unlocked position to release the guidewire 30 and allow the housing 110 to disengage from the guidewire 30.
[0058] In one embodiment, the needle actuation stabilization mechanism 930 can include an inner housing 910 slidably engaged with a housing 110, e.g., the outer housing 110. The outer housing 110 can define a channel 912 configured to receive the inner housing 910 therein, the channel 912 defining a tapered proximal end. The inner housing 910 can define a portion of the needle channel 112 and can include a first arm 932A and a second arm 932B. The inner housing 910 can be formed from a resilient material. Thus, the first arm 932A and the second arm 932B are flexible and can be elastically deformed radially inward from an unlocked position (FIG. 9A) to a locked position (FIG. 9B). Each arm 932 can define a gripping surface 934, e.g., a first gripping surface 934A and a second gripping surface 934B. Additionally, the proximal end of the arm 932 can define a tapered surface configured to engage a tapered proximal end of the outer housing 110 .
[0059] In one embodiment, a portion of the inner housing 910 that defines a portion of the needle channel 112 may engage the needle 20 in an interference fit. Thus, as the needle 20 is urged proximally through the needle channel 112, the inner housing 910 may engage the needle 20 and may be urged proximally. The tapered proximal end of the inner housing 910 may engage the tapered proximal end of the housing channel 912 and may deflect the arms 932 radially inwardly to allow the gripping surfaces 934 to engage a portion of the guidewire 30 extending from the guidewire opening 24 of the needle 20, preventing axial movement of the guidewire 30 relative to the outer housing 110. The needle 20 continues to be urged proximally, which may cause a portion of the guidewire 30 to be urged through the needle slot 26, as described herein. Once the needle 20 is removed from the outer housing 110, the inner housing 910 is free to move distally, disengaging from the proximal end of the housing channel 912 and allowing the arm 932 to return to its undeflected, unlocked position, releasing the guidewire 30.
[0060] 9A-9B, the needle actuation stabilization mechanism 930 may be actuated by linear movement of the needle 20 relative to the housing 110. In one embodiment, the needle actuation stabilization mechanism 930 may also be actuated by other axes or directions of needle movement, such as rotational, helical, multi-directional, lateral, transverse, or perpendicular to the longitudinal axis, or combinations thereof, and are considered to be within the scope of the present invention.
[0061] As shown in FIGS. 10A-10B, the spring-activated stabilization system 1030 can include a clamp arm 1032 that is slidably engaged with the housing 110 between a locked position and an unlocked position along an axis that extends at an angle relative to the axis of the guidewire 30. In one embodiment, the clamp arm 1032 can be slidably engaged with the housing 110 along a lateral axis. An outer surface of the clamp arm 1032 can define the actuator button 132. An inner surface of the clamp arm 1032 can define a gripping surface 1034. In one embodiment, the spring-activated stabilization system 1030 can be biased toward the locked position. For example, the spring-activated stabilization system 1030 can include a compression spring 1040 disposed between the housing 110 and a surface of the clamp arm 1032 and configured to bias the clamp arm 1032 toward the locked position. It will be appreciated that other types and configurations of the biasing member 1040 are contemplated within the scope of the present invention. In the locked position, gripping surface 1034 may abut the guidewire and compress a portion of guidewire 30 against the wall of guidewire channel 114. In the unlocked position, gripping surface 1034 may disengage guidewire 30 to allow guidewire 30 to slide axially.
[0062] In use, the spring actuated stabilization system 1030 can engage the guidewire 30 and lock the position of the guidewire 30 relative to the housing 110. Once the vasculature is accessed, the clinician can apply force to the actuator button 132 to overcome the force of the biasing member 1040 and transition the clamp arm 1032 from the locked position to the unlocked position. The clinician can advance the guidewire 30 to the target location and then release the actuator button 132 to cause the biasing member 1040 to transition the clamp arm 1032 to the locked position. Advantageously, the clinician can then stabilize the housing 110 without having to maintain pressure on the button 132 while the needle 20 is withdrawn proximally, as described herein.
[0063] Although some specific embodiments are disclosed herein, and the specific embodiments are disclosed in some detail, the specific embodiments are not intended to limit the scope of the concepts provided herein. Additional adaptations and / or modifications will be apparent to those skilled in the art, and in the broader aspects, these adaptations and / or modifications are likewise encompassed. Thus, one may develop from the specific embodiments disclosed herein without departing from the scope of the concepts provided herein.
Claims
1. 1. A catheter placement system comprising: a needle extending along a longitudinal axis and supported by a needle hub, the needle defining a needle lumen, the needle including an opening extending through a wall of the needle proximate the needle hub and a slot extending from the opening to a distal tip of the needle; a guidewire having a distal tip extending through the opening and into the needle lumen; 1. A guidewire stabilization system, comprising: a housing coupled to the needle hub and defining a needle channel, the needle channel having a portion of the needle disposed therethrough; a stabilizing mechanism transitionable between a locked position and an unlocked position, the stabilizing mechanism configured to grasp a portion of the guidewire in the locked position to stabilize the guidewire relative to the housing as the needle is withdrawn proximally from the needle channel of the housing; a guidewire stabilization system comprising: A catheter placement system comprising:
2. 10. The catheter deployment system of claim 1, wherein the stabilizing mechanism is biased toward the unlocked position and includes an actuator button configured to transition the stabilizing mechanism from the unlocked position to the locked position when actuated.
3. The catheter deployment system of claim 2 , wherein the actuator button is further configured to disengage the needle hub from the housing.
4. 4. The catheter placement system of claim 1, wherein the stabilization mechanism further comprises a first lever and a second lever each pivotally coupled to the housing, the first lever defining a first actuator button and the second lever defining a second actuator button.
5. 5. The catheter deployment system of claim 4, wherein a first gripping surface of the first lever and a second gripping surface of the second lever contact the guidewire in the locked position to prevent axial movement of the guidewire.
6. The catheter deployment system of claim 5 , wherein one or both of the first gripping surface and the second gripping surface are in a spaced apart relationship from the guidewire in the unlocked position.
7. 6. The catheter placement system of claim 5, wherein one or both of the first and second gripping surfaces engage the guidewire in the unlocked position to allow the guidewire to slide axially from a first position to a second position and maintain the guidewire in the second position until repositioned.
8. 6. The catheter deployment system of claim 5, wherein one or both of the first lever and the second lever comprise a first material and each of the first gripping surface and the second gripping surface comprises a second material, the second material being different from the first material and having a higher coefficient of friction compared to the first material.
9. The catheter deployment system of claim 8 , wherein the second material comprises one of a plastic, a polymer, an elastomer, a rubber, or a silicone rubber.
10. 6. The catheter deployment system of claim 5, wherein the first gripping surface comprises one of a first protrusion or a first detent configured to engage one of a second protrusion or a second detent disposed on the second gripping surface.
11. 4. The catheter deployment system of claim 1, wherein the stabilization mechanism comprises a first lever hingedly coupled to the housing, the first lever defining a gripping surface configured to extend into a guidewire channel of the housing and abut against the guidewire in the locked position.
12. 12. The catheter deployment system of claim 11, wherein the gripping surface is configured to deflect a portion of the guidewire from a straight configuration to a non-straight configuration in the locked position to inhibit axial movement of the guidewire.
13. 12. The catheter deployment system of claim 11, wherein the gripping surface is configured to compress a portion of the guidewire against a wall of the guidewire channel in the locked position to prevent axial movement of the guidewire.
14. 4. The catheter deployment system of claim 1, wherein the stabilization mechanism comprises a clamp having a gripping surface, the clamp slidably engaged with the housing along a first axis between the locked and unlocked positions, the first axis extending perpendicular to a second axis of the guidewire, and the gripping surface being angled relative to the first axis.
15. 15. The catheter placement system of claim 14, wherein the gripping surface engages a portion of the guidewire in the locked position and compresses the portion of the guidewire against a wall of the guidewire channel along a third axis that extends at an angle relative to both the first axis and the second axis.
16. the guidewire stabilization system includes a cam rotatable between the locked and unlocked positions; the cam includes a first notch that aligns with a guidewire channel of the housing in the unlocked position and a second notch that aligns with the guidewire channel in the locked position; 4. The catheter placement system of claim 1, wherein the second notch is configured to compress a portion of the guidewire against a wall of the guidewire channel in the locked position to prevent axial movement of the guidewire.
17. 17. The catheter deployment system of claim 16, wherein the cam is bistable in both the locked and unlocked positions.
18. 17. The catheter deployment system of claim 16, wherein the cam further comprises a lever extending therefrom and configured to indicate to a user that the cam is in one of the locked position or the unlocked position.
19. 10. The catheter placement system of claim 1, wherein the guidewire stabilization system further comprises an inner housing slidably engaged with a housing channel of the housing and configured to be urged proximally upon withdrawal of the needle to deflect an arm of the inner housing from the unlocked position to the locked position to prevent axial movement of the guidewire.
20. 20. The catheter deployment system of claim 19, wherein the inner housing defines a portion of the needle channel and is configured to slidably engage the needle in an interference-fit engagement to urge the inner housing proximally as the needle is withdrawn from the needle channel.
21. 20. The catheter deployment system of claim 19, wherein the inner housing further comprises a tapered proximal end configured to engage a tapered proximal end of the housing channel and bias the arm to the locked position when the needle is withdrawn from the needle channel.
22. the inner housing includes a first arm defining a first gripping surface and a second arm defining a second gripping surface disposed opposite the first gripping surface across an axis of the guidewire; 22. The catheter deployment system of claim 19, wherein the first and second arms are configured to deflect inward in the locked position to grasp a portion of the guidewire between the first and second arms.
23. 4. The catheter deployment system of claim 1, wherein the stabilizing mechanism is biased toward the locked position, and the stabilizing mechanism comprises an actuator button configured to transition a gripping surface of the stabilizing mechanism from the locked position to the unlocked position.
24. 24. The catheter placement system of claim 23, further comprising a clamp arm slidably engaged with the housing between a locked position and an unlocked position, a first surface of the clamp arm defining the actuator button and a second surface of the clamp arm defining the gripping surface, the clamp arm configured to compress a portion of the guidewire against a wall of the guidewire channel in the locked position to prevent axial movement of the guidewire.
25. 25. The catheter deployment system of claim 24, further comprising a compression spring configured to bias the clamp arm to the locked position.