Probe delivery device

Abstract

The present application relates to a probe delivery device comprising: a housing comprising a distal end and a proximal end, wherein the distal end is configured to be coupled to an intravenous catheter device, wherein the housing comprises a stop member; a spool disposed within the housing; a probe wound around the spool; and a propulsion wheel, wherein the propulsion wheel extends from the housing, wherein in response to the propulsion wheel being rotated, the spool is rotated to advance the probe through the distal end of the housing, wherein the propulsion wheel comprises another stop member configured to contact the stop member and prevent rotation of the propulsion wheel beyond one full revolution. With the technical solution of the present application, the problem of blockage of the catheter of the IV catheter device in the prior art is eliminated and the trauma that can be caused to the vasculature of the patient is reduced.

Description

Technical Field

[0001] This application relates to the field of medical devices, and in particular to a probe delivery device. Background Technology

[0002] Catheters are commonly used to infuse fluids into a patient's vascular system. For example, catheters can be used to infuse saline solutions, various medications, or total parenteral nutrition. Catheters can also be used to draw blood from a patient.

[0003] The catheter may include a needle-type peripheral intravenous (“IV”) catheter. In this case, the catheter may be mounted on a guide needle with a sharp distal tip. The catheter and guide needle may be assembled such that the distal end of the guide needle extends beyond the distal end of the catheter, with the bevel of the needle facing upwards away from the patient's skin. The catheter and guide needle are typically inserted into the patient's vascular system through the skin at a small angle.

[0004] To verify proper placement of the guide needle and / or catheter in the blood vessel, clinicians typically confirm the presence of blood "backflow" in the reflux chamber of the catheter assembly, including the catheter. Once needle placement has been confirmed, the clinician can remove the needle, leaving the catheter in place for future blood draws or fluid infusions.

[0005] Catheters typically provide an access port through which other devices can gain access to the catheter once it is positioned within the patient's vascular system. These other devices can be used to perform a variety of tasks, such as obtaining blood samples, injecting fluids, performing measurements, and monitoring. In many cases, the IV catheter device may become blocked (e.g., due to thrombosis or fibrin sheath), which can prevent the performance of these tasks. If the catheter has become blocked, clinicians may attempt to remove the blockage by inserting a needle, guidewire, or other structure through the catheter. However, removing blockages using currently available techniques is not always effective, is often difficult to perform, and can be traumatic to the patient's vascular system.

[0006] The subject matter claimed herein is not limited to embodiments that address any shortcomings or operate only in environments such as those described above. Rather, this background is provided merely to illustrate an example technical field in which some implementations described herein can be practiced. Summary of the Invention

[0007] This disclosure generally relates to probe delivery devices that facilitate the advancement and / or retraction of probes within an intravenous (IV) catheter, and related systems and methods. In some embodiments, the probe delivery device may include a housing that may include a distal end and a proximal end. In some embodiments, the distal end of the housing may be configured to be coupled to an intravenous (IV) catheter device.

[0008] In some embodiments, the inner surface of the housing may include a stop member. In some embodiments, the probe delivery device may include a spool disposed within the housing and a probe wound around the spool. In some embodiments, the probe delivery device may include a drive wheel. In some embodiments, the drive wheel may extend from the housing. In some embodiments, in response to rotation of the drive wheel, the spool may rotate to advance the probe through the distal end of the housing. In some embodiments, the outer surface of the drive wheel may include another stop member configured to contact the stop member and prevent the drive wheel from rotating more than one full revolution.

[0009] In some embodiments, the stop member and / or the other stop member may include a protrusion. In some embodiments, the housing may include fluid passages extending through the distal and proximal ends of the housing. In some embodiments, the housing may include a probe channel extending from a reel to the fluid passages. In some embodiments, the probe delivery device may include a seal isolating the probe channel from the fluid passages, and a probe may extend through the seal. In some embodiments, the proximal end of the housing may include a Luer connector or another suitable type of connector.

[0010] In some embodiments, the probe delivery device may include a housing that may include a distal end and a proximal end. In some embodiments, the distal end of the housing may be configured to be coupled to an intravenous catheter device. In some embodiments, the inner surface of the housing may include a housing stop member.

[0011] In some embodiments, the probe delivery device may include a first wheel. In some embodiments, the inner surface of the first wheel may include a first wheel stop member. In some embodiments, the probe delivery device may include a second wheel, which may include tabs. In some embodiments, in response to the probe delivery device being disposed in a first configuration, rotation of the first wheel and / or the second wheel in a first direction may be prevented. In some embodiments, in response to the probe delivery device being disposed in the first configuration, the first wheel and / or the second wheel may be configured to rotate in a second direction opposite to the first direction. In some embodiments, the first wheel may be configured to rotate more than one full revolution in the second direction.

[0012] In some embodiments, a gap may be provided between the housing stop member and the first wheel stop member. In some embodiments, in response to the probe delivery device being disposed in the first configuration, the tab may span the gap between the housing stop member and the first wheel stop member. In some embodiments, in response to the probe delivery device being disposed in the first configuration, the tab may be disposed between the housing stop member and the first wheel stop member and may contact the housing stop member and the first wheel stop member. In some embodiments, in response to the probe delivery device being disposed in the first configuration, the first wheel may be configured to rotate independently of the housing and the second wheel in a second direction until the first wheel stop member contacts the tab.

[0013] In some embodiments, in response to the first wheel rotating independently of the housing and the second wheel in a second direction until the first wheel stop member contacts the tab, the first wheel and the second wheel are configured to rotate together further in the second direction until the probe delivery device is disposed in a second configuration. In some embodiments, in the second configuration, the tab may be disposed between the housing stop member and the first wheel stop member, and may contact both the housing stop member and the first wheel stop member.

[0014] In some embodiments, the probe delivery device may include a probe. In some embodiments, the probe may be in a fully retracted position in response to the probe delivery device being in a first configuration. In some embodiments, the probe may be in a fully advanced position in response to the probe delivery device being in a second configuration. In some embodiments, a first wheel may be configured to rotate in a second direction to advance the probe through the distal end of the housing in a distal direction.

[0015] In some embodiments, the probe delivery device may include a housing that may include a distal end and a proximal end. In some embodiments, the distal end may be configured to be coupled to an IV catheter device. In some embodiments, the inner surface of the housing may include a housing stop member and a housing brake. In some embodiments, the probe delivery device may include a shaft. In some embodiments, the probe delivery device may include a first wheel configured to rotate with the shaft. In some embodiments, the inner surface of the first wheel may include a first wheel stop member and a first wheel brake.

[0016] In some embodiments, the probe delivery device may include a second wheel disposed on the shaft and configured to rotate with the shaft and move axially along the shaft. In some embodiments, the second wheel may include a tab. In some embodiments, in response to the probe delivery device being in a first configuration, the tab may be disposed within a housing brake and a first wheel brake. In these embodiments, the first wheel may be prevented from rotating in a first direction, but may be configured to rotate in a second direction opposite to the first direction. In some embodiments, the first wheel may be configured to rotate more than one full revolution in the second direction.

[0017] In some embodiments, the probe delivery device may include a probe. In some embodiments, a first wheel may be configured to rotate in a second direction to advance the probe through the distal end of the housing in a distal direction. In some embodiments, in response to rotation of the first wheel from the first configuration in the second direction, the tab may be removed from the first wheel brake before being removed from the housing brake. In some embodiments, the tab may be removed from the housing brake in response to sliding toward the inner surface of the first wheel.

[0018] In some embodiments, the inner surface of the housing may include another housing braking portion. In some embodiments, the inner surface of the first wheel may include a first wheel inclined surface. In some embodiments, the first wheel braking portion may be disposed between the first wheel stop member and the first wheel inclined surface. In some embodiments, the first wheel inclined surface may be inclined toward the first wheel braking portion.

[0019] In some embodiments, the first wheel can be configured to rotate from a first configuration to a second configuration. In some embodiments, in the second configuration, the tab may be disposed within the other housing brake and the first wheel brake. In some embodiments, for movement from the first configuration to the second configuration, the tab may contact a housing stop member. In some embodiments, in response to the tab contacting the housing stop member and further rotation of the first wheel in the second direction, the tab may move along the inclined surface of the first wheel and may be pushed by the inclined surface of the first wheel toward the inner surface of the housing and into the other housing brake.

[0020] In some embodiments, the inner surface of the housing may include a housing inclined surface and another housing inclined surface. In some embodiments, a housing braking portion may be disposed between a housing stop member and the housing inclined surface. In some embodiments, the other housing braking portion may be disposed between the housing stop member and the other housing inclined surface, and on the side of the housing stop member opposite to the housing braking portion.

[0021] In some embodiments, the inclined surface of the housing may be inclined toward the housing brake portion. In some embodiments, the inclined surface of the first wheel may be inclined toward the first wheel brake portion. In some embodiments, the inclined surface of the housing and the inclined surface of the first wheel may be inclined in different or opposite directions. In some embodiments, in a first configuration, the housing brake portion may be arranged opposite the first wheel brake portion.

[0022] In particular, this application relates to a probe delivery device comprising: a housing including a distal end and a proximal end, wherein the distal end is configured to be coupled to an intravenous catheter device, wherein the housing includes a stop member; a spool disposed within the housing; a probe wound around the spool; and a drive wheel extending from the housing, wherein in response to rotation of the drive wheel, the spool rotates to advance the probe through the distal end of the housing, wherein the drive wheel includes another stop member configured to contact the stop member and prevent the drive wheel from rotating more than one full revolution.

[0023] Specifically, this application relates to a probe delivery device comprising: a housing including a distal end and a proximal end, wherein the distal end is configured to be coupled to an intravenous catheter device, wherein an inner surface of the housing includes a housing stop member; a first wheel, wherein an inner surface of the first wheel includes a first wheel stop member; and a second wheel, wherein the second wheel includes a tab, wherein in response to the probe delivery device being disposed in a first configuration, the first wheel and the second wheel are prevented from rotating in a first direction but are configured to rotate in a second direction opposite to the first direction, wherein the first wheel is configured to rotate more than one full revolution in the second direction.

[0024] Specifically, this application relates to a probe delivery device, comprising: a housing including a distal end and a proximal end, wherein the distal end is configured to be coupled to an intravenous catheter device, wherein the inner surface of the housing includes a housing stop member and a housing brake; a shaft; a first wheel configured to rotate with the shaft, wherein the inner surface of the first wheel includes a first wheel stop member and a first wheel brake; and a second wheel disposed on the shaft and configured to rotate with the shaft and move axially along the shaft, wherein the second wheel includes a tab, wherein in response to the probe delivery device being in a first configuration, the tab is disposed within the housing brake and the first wheel brake, and the first wheel is prevented from rotating in a first direction, but the first wheel is configured to rotate in a second direction opposite to the first direction, wherein the first wheel is configured to rotate more than one full revolution in the second direction.

[0025] The technical solution of this application eliminates the problem of catheter blockage in the prior art IV catheter device and reduces the potential trauma to the patient's vascular system.

[0026] It should be understood that the foregoing general description and the following detailed description are illustrative and exemplary, and not intended to limit the claimed invention. It should be understood that the various embodiments are not limited to the arrangements and means shown in the accompanying drawings. It should also be understood that embodiments may be combined, or other embodiments may be utilized, and structural changes may be made without departing from the scope of the various embodiments of the invention unless stated otherwise. Therefore, the following detailed description should not be construed as restrictive. Attached Figure Description

[0027] Example embodiments will be described and explained with additional features and details using the accompanying drawings, in which:

[0028] Figure 1 This is a cross-sectional side view of a probe delivery device according to some embodiments;

[0029] Figure 1A yes Figure 1 An exploded rear view of an exemplary probe propulsion mechanism of a probe delivery device;

[0030] Figure 2 This is a cross-sectional side view of another probe delivery device according to some embodiments;

[0031] Figure 2A yes Figure 2 Rear view of the probe delivery mechanism of the probe delivery device;

[0032] Figure 3 This is a top perspective view of another probe delivery device according to some embodiments;

[0033] Figure 4 This is a cross-sectional side view of another probe delivery device according to some embodiments;

[0034] Figure 5 This is a cross-sectional side view of another probe delivery device according to some embodiments;

[0035] Figure 6 This is a cross-sectional side view of another probe delivery device according to some embodiments;

[0036] Figure 7 This is a cross-sectional side view of another probe delivery device according to some embodiments;

[0037] Figure 8 This is a cross-sectional side view of another probe delivery device according to some embodiments;

[0038] Figure 9This is a cross-sectional side view of another probe delivery device according to some embodiments;

[0039] Figure 10A This is a cross-sectional side view of another probe delivery device according to some embodiments, showing the probe delivery device in a first configuration;

[0040] Figure 10B According to some embodiments Figure 10A A cross-sectional side view of the probe delivery device, showing the probe delivery device in the second configuration;

[0041] Figure 10C According to some embodiments Figure 10A The top perspective view of the probe delivery device shows the probe delivery device in a first configuration;

[0042] Figure 10D According to some embodiments Figure 10A An exploded rear view of an example probe delivery mechanism for a probe delivery device;

[0043] Figure 11A This is a cross-sectional side view of another probe delivery device according to some embodiments, showing the probe delivery device in a first configuration;

[0044] Figure 11B According to some embodiments Figure 11A A cross-sectional side view of the probe delivery device, showing an exemplary first wheel rotating independently of the exemplary second wheel along a second direction from a first configuration;

[0045] Figure 11C According to some embodiments Figure 11A A cross-sectional side view of the probe delivery device, showing the probe delivery device from... Figure 11B The position of the first wheel rotates further along the second direction;

[0046] Figure 11D It is based on some implementation methods Figure 11A A cross-sectional side view of the probe delivery device, showing the probe delivery device from... Figure 11C The positions of the first and second wheels rotate together in the second direction;

[0047] Figure 11E This is a cross-sectional side view of another probe delivery device according to some embodiments, showing a probe delivery device in a second configuration;

[0048] Figure 12A This is a cross-sectional front view of another probe delivery device according to some embodiments, showing the probe delivery device in a first configuration;

[0049] Figure 12B According to some embodiments Figure 12AA front cross-sectional view of the probe delivery device, showing the probe delivery device in a first configuration;

[0050] Figure 12C According to some embodiments Figure 11A A cross-sectional side view of the probe delivery device, showing an exemplary first wheel rotating independently of the exemplary second wheel along a second direction from a first configuration;

[0051] Figure 12D According to some embodiments Figure 12A A cross-sectional front view of the probe delivery device, showing the first wheel rotating independently of the second wheel along the second direction from the first configuration;

[0052] Figure 12E According to some embodiments Figure 11A A cross-sectional side view of the probe delivery device, showing an exemplary tab moving toward the first wheel;

[0053] Figure 12F According to some embodiments Figure 12A A front cross-sectional view of the probe delivery device, showing the tabs moving toward the first wheel;

[0054] Figure 12G It is based on some implementation methods Figure 12A A cross-sectional side view of the probe delivery device, showing the probe delivery device from... Figure 12E-12F The position of the protrusion rotating in the second direction and the first wheel;

[0055] Figure 12H According to some embodiments Figure 12A A cross-sectional side view of the probe delivery device, showing the probe delivery device from... Figure 12G The position of the protrusion and the first wheel is further rotated along the second direction;

[0056] Figure 12I According to some embodiments Figure 12A A front view of the cross-section of the probe delivery device, showing the probe delivery device from... Figure 12G The position of the protrusion and the first wheel is further rotated along the second direction;

[0057] Figure 12J According to some embodiments Figure 12A A cross-sectional side view of the probe delivery device, showing the probe delivery device in a second configuration; and

[0058] Figure 12K According to some embodiments Figure 12A A front cross-sectional view of the probe delivery device, showing the probe delivery device in the second configuration. Detailed Implementation

[0059] In the specification and claims, the term "IV catheter device" should be interpreted as any device including an IV catheter. The term "probe delivery device" should be understood as any device configured to advance and / or retract a probe within an IV catheter. In some embodiments, the probe delivery device may be a separate device from the IV catheter device, or the probe delivery device may be used in conjunction with the IV catheter device. In other embodiments, the probe delivery device may be in the form of an IV catheter device. In other words, in some embodiments, the probe delivery device may include an IV catheter. The term "probe delivery mechanism" will be used to refer to various mechanisms and / or configurations of the probe delivery device according to embodiments of the present disclosure, which facilitate the advancement and / or retraction of a probe within an IV catheter.

[0060] Before describing various examples of probe delivery devices, general features of some embodiments of probe delivery devices will be described. A probe delivery device includes a distal end that will face a patient's vascular system during use, and a proximal end opposite said distal end. In some embodiments, the distal end may be configured to connect to an IV catheter device. In other embodiments, the distal end may include an IV catheter. In some embodiments, the proximal end of the probe delivery device may be configured to allow a separate device to be connected to the probe delivery device. For example, the proximal end may include an access port or vacuum tube receiver forming part of a fluid passage extending to the distal end of the probe delivery device. In other embodiments, the distal end or another portion of the probe delivery device may be configured to allow a separate device to be connected to the probe delivery device. However, in some embodiments, the probe delivery device may not be configured to allow a separate device to be connected to the probe delivery device. For example, the probe delivery device may be configured to deliver probes rather than to inject fluids or draw blood.

[0061] Figure 1 Examples of probe delivery devices 100 configured according to some embodiments of the present disclosure are shown. In some embodiments, the probe delivery device 100 may include a housing 105 having a distal end 100a and a proximal end 100b. In some embodiments, although only a portion of the distal end 100a is shown, as described above, the distal end 100a may include any type of connector to enable the probe delivery device 100 to be connected to, or to be coupled to, an IV catheter device. In some embodiments, the proximal end 100b may be configured to form a vacuum tube receiver 130 having a needle 131 covered by a protective sheath 132.

[0062] In some embodiments, the fluid passage 110 may extend from the needle 131 to the distal end 100a within the probe delivery device 100. Thus, when the vacuum tube 140 is inserted into the vacuum tube receiver 130, a blood sample can be collected through the fluid passage 110. In some embodiments, the proximal end 100b may include a Luer connector or any other type of connector coupled to the fluid passage 110.

[0063] In some embodiments, the probe delivery device 100 may include a probe delivery mechanism 150 that enables a probe 153 to advance distally through an IV catheter and subsequently retract proximally. In some embodiments, the probe 153 may include a guidewire made of nickel-titanium or other suitable material. In some embodiments, a compartment 120 may be formed within the probe delivery device 100 and may accommodate the probe delivery mechanism 150. In some embodiments, a partition wall 115 may form a probe channel 121 extending distally from the compartment 120 and merging into the fluid passage 110 at a distal portion 110a of the fluid passage 110.

[0064] In some embodiments, to isolate the compartment 120 from the fluid passage 110, a seal 122 (e.g., an elastomeric diaphragm) may be positioned within and across the probe channel 121. In some embodiments, the probe 153 may extend through a slit or other opening formed within the seal 122. In some embodiments, the seal 122 may provide support for the probe 153 to prevent it from bending during advancement. Although the probe channel 121 is shown as significantly wider than the probe 153, in some embodiments, at least a portion of the probe channel 121 may be only slightly larger than the probe 153, such that the probe channel 121 may provide support to prevent the probe 153 from bending.

[0065] In some embodiments, the probe delivery mechanism 150 may include a spool 155 and a feed wheel 152, both of which may be configured to rotate within the compartment 120. In some embodiments, the spool 155 may be positioned adjacent to the feed wheel 152 (i.e., towards the probe channel 121 relative to the feed wheel 152). In some embodiments, the feed wheel 152 may be positioned to partially extend from the compartment 120, thereby allowing a clinician to rotate the feed wheel 152 using his or her thumb or finger. In some embodiments, the spool 155 may include a gear 156 having teeth 156a. Similarly, in some embodiments, the feed wheel 152 may include teeth 152a and thus may function as a gear. In some embodiments, teeth 152a may engage with teeth 156a such that the spool 155 rotates when the feed wheel 152 rotates. In some embodiments, teeth 152a are formed along the outermost edge of the feed wheel 152. However, in other embodiments, teeth 152a may be formed along a portion of the feed wheel positioned inward relative to the outermost edge.

[0066] Figure 1A An exploded rear view of a probe delivery mechanism 150, shown independently according to some embodiments, is provided. In some embodiments, a spool 155 and a feed wheel 152 may each include shafts 155b and 152b, which are positioned within a compartment 120 by their respective shafts and rotate about their respective shafts. In some embodiments, the spool 155 may include a spool drum 155a around which a probe 153 may be wound. Thus, as the spool 155 rotates, this rotation can cause the probe 153 to advance or retract along the probe channel 121 depending on the direction of rotation of the feed wheel 152. In some embodiments, the gear formed by the feed wheel 152 may have a larger diameter than the gear 156, thereby allowing the probe 153 to advance or retract a greater distance relative to the amount of rotation of the feed wheel 152. Conversely, in other embodiments, the gear formed by the feed wheel 152 may have a diameter equal to or smaller than that of the gear 156. In such embodiments, the probe 153 may advance or retract a smaller distance relative to the amount of rotation of the feed wheel 152, but such advance or retraction can be achieved by applying a reduced amount of force to the feed wheel 152.

[0067] In some embodiments, the probe delivery device 100 may include a seal (not shown) within a compartment 120 that isolates the reel drum 155a and the probe 153 from the external environment. In some embodiments, the seal 122 may or may not be used, as fluid entering the probe channel 121 will be prevented from escaping from the compartment 120 by the seal within the compartment 120.

[0068] Figure 2 Another example of a probe delivery device 200 according to some embodiments is shown. In some embodiments, the probe delivery device 200 may be similar to or identical to the probe delivery device 100 in one or more features and / or operations. In some embodiments, the probe delivery device 200 may include a housing 205 having a distal end 200a that may be constructed in any of the ways described above and a proximal end 200b forming a vacuum tube receiver 230 having a needle 231 covered by a protective sheath 232. In some embodiments, a fluid passage 210 may extend from the needle 231 to the distal end 200a within the probe delivery device 200. Thus, when a vacuum tube 240 is inserted into the vacuum tube receiver 230, a blood sample can be collected through the fluid passage 210. In other embodiments, the proximal end 200b may include a Luer connector or any other type of connector coupled to the fluid passage 210.

[0069] In some embodiments, the probe delivery device 200 may include a probe delivery mechanism 250 that allows the probe 253 to advance distally through the IV catheter and / or subsequently retract proximally. In some embodiments, a compartment 220 may be formed within the probe delivery device 200 and may accommodate the probe delivery mechanism 250. In some embodiments, a partition wall 215 may form a probe channel 221 extending distally from the compartment 220 and merging into the fluid passage 210 at a distal portion 210a. In some embodiments, a seal 222 may be positioned within the probe channel 221 and bridging the probe channel to isolate the probe channel 221 from the fluid passage 210.

[0070] like Figure 2A The diagram shows a separate rear view of a probe delivery mechanism 250, which may include a reel 251 having a shaft 251b that holds the reel 251 within a compartment 220 and allows the reel 251 to rotate. In some embodiments, the reel 251 may include a reel drum 251c around which a probe 253 is wound. In some embodiments, a portion of the reel 251 may form a drive wheel 251a extending upward from the compartment 220. Thus, a clinician can directly rotate the reel 251 by applying a force to the drive wheel 251a. This rotation can cause the probe 253 to advance and retract within the probe channel 221, depending on the direction of rotation.

[0071] Figure 3 Another example of a probe delivery device 300 according to some embodiments is shown. In some embodiments, the probe delivery device 300 may be similar to or identical to probe delivery device 100 and / or probe delivery device 200 in one or more features and / or operations. In some embodiments, the probe delivery device 300 may include a housing 305 having a distal end 300a and a proximal end 300b. In some embodiments, the distal end 300a may form a connector 306 through which the probe delivery device 300 may be coupled to an IV catheter device (not shown). In some embodiments, the probe delivery device 300 is an example of a probe delivery device not configured to collect blood or inject fluid. Thus, in some embodiments, the proximal end 300b does not form a vacuum tube receiver or does not include an inlet port or other connector. In some embodiments, a probe channel rather than a fluid passage may be formed within the housing 305. In some embodiments, a probe 353 may extend through the probe channel, exit through the distal end 300a, enter an IV catheter device coupled to the probe delivery device 300, and ultimately pass through an IV catheter. However, it should be noted that in some embodiments, the proximal end 300b may be configured to allow the use of probe delivery device 300 (e.g., using any of the techniques described in this disclosure) to collect blood or inject fluid.

[0072] In some embodiments, the probe delivery device 300 may include a probe delivery mechanism 350 having a reel 351 that is substantially similar to a reel 251. Specifically, the reel 351 may include a shaft 351b that holds the reel 351 within the compartment 320 and allows the reel 351 to rotate. In some embodiments, the reel 351 may include a reel drum 351C around which the probe 353 is wound. In some embodiments, a portion of the reel 351 may form a drive wheel 351a extending upward from the compartment 320. Thus, a clinician can directly rotate the reel 351 by applying a force to the drive wheel 351a, and this rotation can cause the probe 353 to advance or retract.

[0073] Figure 4 Another example of a probe delivery device 400 according to some embodiments is shown. In some embodiments, the probe delivery device 400 may be similar to or the same as one or more of the following in terms of one or more features and / or operation: probe delivery device 100, probe delivery device 200, and probe delivery device 300. In some embodiments, the probe delivery device 400 may include a housing 405 having a distal end 400a and a proximal end 400b, which may be constructed in any of the ways described above, from which a tube 430 having a connector 430a extends. In some embodiments, a fluid passage 410 may extend from the tube 430 to the distal end 400a within the probe delivery device 400. Thus, a separate device may be coupled to the connector 430a to draw blood from or inject fluid into the fluid passage 410. In some embodiments, the proximal end 400b may form a vacuum tube receiver similar to the vacuum tube receiver described above. In some embodiments, the tube 430 may form part of the fluid passage 410 (e.g., by extending distally to the distal end of the partition wall 415).

[0074] In some embodiments, the probe delivery device 400 may include a probe delivery mechanism 450 that allows a probe 453 to advance distally through an IV catheter and subsequently retract proximally. In some embodiments, a distal compartment 420a and a proximal compartment 420b are formed within the probe delivery device 400 and house the probe delivery mechanism 450. In some embodiments, a compartment passage 420c interconnects the distal compartment 420a and the proximal compartment 420b. In some embodiments, a partition wall 415 may form a probe channel 421 extending distally from the proximal compartment 420b and merging into the fluid passage 410 at a distal portion 410A of the fluid passage 410. In some embodiments, a seal 422 may be positioned within and across the probe channel 421 to isolate the probe channel 421 from the fluid passage 410.

[0075] In some embodiments, the probe delivery mechanism 450 may include a reel 451 having a shaft 451b that holds the reel 451 within the distal compartment 420a and allows the reel 451 to rotate. In some embodiments, the reel 451 may include a reel drum 451C around which the probe 453 is wound. In some embodiments, a portion of the reel 451 may form a drive wheel 451a extending upward from the distal compartment 420a. Thus, a clinician can directly rotate the reel 451 by applying a force to the drive wheel 451a.

[0076] In some embodiments, the probe delivery mechanism 450 may include a main wheel 461 having a shaft 461a that holds the main wheel 461 within the proximal compartment 420b and allows the main wheel 461 to rotate. In some embodiments, the probe delivery mechanism 450 may also include one or more auxiliary wheels 462 adjacent to the main wheel 461 and configured to rotate within the proximal compartment 420b. In the illustrated embodiment, four auxiliary wheels 462 are present, but in other embodiments, a single auxiliary wheel or any other reasonable number of auxiliary wheels may be present. Furthermore, in some embodiments, the probe delivery mechanism 450 may include the main wheel 461 without auxiliary wheels.

[0077] In some embodiments, the probe 453 may be wound around the reel drum 451c and then extend proximally through the compartment channel 420c to wound proximally around the main wheel 461. In some embodiments, each auxiliary wheel 462 may be positioned relative to the main wheel 461 to keep the probe 453 in close proximity, or even in continuous contact with the main wheel 461. Therefore, the arrangement of the main wheel 461 and the auxiliary wheels 462 can facilitate the forward movement of the probe 453 by reducing any resistance that might otherwise be caused when the probe is wound around the main wheel 461. In some embodiments, more specifically, the auxiliary wheels 462 may keep the probe 453 in contact with the main wheel 461 such that when the reel 451 is rotated to advance or retract the probe 453, the advance or retraction can cause the main wheel 461 to rotate uniformly. In some embodiments, as Figure 4 As shown, the probe delivery mechanism 450 functions in a manner similar to a pulley system, and thus reduces the amount of force that a clinician might need to apply to the reel 451 to advance or retract the probe 453.

[0078] Figure 5Another example of a probe delivery device 500 according to some embodiments is shown. In some embodiments, the probe delivery device 500 may be similar to or the same as one or more of the following in terms of one or more features and / or operation: probe delivery device 100, probe delivery device 200, probe delivery device 300, and probe delivery device 400. In some embodiments, the probe delivery device 500 may include a housing 505 having a distal end 500a that may be constructed in any of the above-described manner and a proximal end 500b from which a conduit 530 having a connector 530a extends. In some embodiments, the conduit 530 may form a proximal portion of a fluid passage 510 that extends within the probe delivery device 500 to the distal portion 510a of the fluid passage 510. In some embodiments, because the conduit 530 forms a proximal portion of the fluid passage 510, a partition wall may not be required to separate the proximal portion of the fluid passage 510 from the compartment 520. However, in other embodiments, similar to the embodiments described above, a partition wall may be formed within the housing 505. In other embodiments, the connector 530a may be replaced with a vacuum tube receiver similar to the embodiments described above. In some embodiments, the seal 522 may be positioned within the housing 505 to isolate the compartment 520 from the distal portion 510a of the fluid passage 510.

[0079] In some embodiments, the probe delivery device 500 may include a probe delivery mechanism 550 that allows the probe 553 to advance distally through the IV conduit and subsequently retract proximally. In some embodiments, the compartment 520 may be formed as a hollow interior of the housing 505. In some embodiments, the probe delivery mechanism 550 may include a first guide wheel 555 having a gear 556 with teeth 556a and a drive wheel 552 having teeth 552a along its outermost edge, such that the drive wheel 552 serves as a gear driving the gear 556. In some embodiments, the probe delivery mechanism 550 may also include a second guide wheel 561 that may be positioned below but adjacent to the first guide wheel 555. In some embodiments, the probe 553 may include an end 553a fixed to a portion of the housing 505 (e.g., the portion adjacent to the drive wheel 552). In some embodiments, the probe 353 may be straight, curved, annular, or configured in any way to facilitate easy advancement. In some embodiments, the probe 553 may be initially positioned in the proximal direction within the compartment 520 and then positioned in the distal direction to pass between the first guide wheel 555 and the second guide wheel 561 and through the seal 522.

[0080] In some embodiments, the first guide wheel 555 and the second guide wheel 561 may be positioned close together such that the probe 553 remains in contact with both guide wheels as it advances or retracts. For example, the second guide wheel 561 may be biased against the first guide wheel 555. Thus, when the clinician rotates the advance wheel 552, the gears formed by the advance wheel 552 cause the first guide wheel 555 to rotate. In some embodiments, because the probe 553 is sandwiched between the first guide wheel 555 and the second guide wheel 561, rotation of the first guide wheel 555 can advance or retract the probe 553 depending on the direction of rotation. In some embodiments, the second guide wheel 561 may be configured to rotate to reduce any resistance caused when the probe 553 advances or retracts. In some embodiments, one or both of the first guide wheel 555 and the second guide wheel 561 may be formed of or coated with a high-friction material such that the probe 553 will not slip relative to the two guide wheels (i.e., friction will ensure that the guide wheels rotate as the probe advances or retracts).

[0081] In some embodiments, including the depicted embodiments, housing 505 may include a window 570 (e.g., a transparent section of the housing) that allows a clinician to see into compartment 520. In some embodiments, window 570 may allow a clinician to monitor the distance probe 553 has advanced. For example, a clinician can observe the location of the curved portion of probe 553 through window 570. In some embodiments, when the curved portion is positioned toward the proximal end 500b, the clinician can determine that probe 553 is fully retracted. Conversely, when the curved portion is positioned toward the distal end of compartment 520, the clinician can determine that probe 553 is fully advanced. In some embodiments, window 570 or another portion of compartment 520 may include a ruler or other markings that indicate the distance probe 553 has advanced when the curved portion of probe 553 is aligned with a particular marking. In some embodiments, probe 553 may be colored to increase its visibility within window 570. In some embodiments, the coloring of probe 553 may vary along its length such that the coloring indicates the distance probe 553 has advanced.

[0082] Figure 6Another example of a probe delivery device 600 according to some embodiments is shown. In some embodiments, the probe delivery device 600 may be similar to or the same as one or more of the following in terms of one or more features and / or operation: probe delivery device 100, probe delivery device 200, probe delivery device 300, probe delivery device 400, and probe delivery device 500. In some embodiments, the probe delivery device 600 may include a housing 605 having a distal end 600a and a proximal end 600b, the distal end being constructed in any of the ways described above, and a conduit 630 having a connector 630a extending from the proximal end. In some embodiments, a fluid passage 610 may extend within the probe delivery device 600 from the conduit 630 to the distal end 600a.

[0083] In some embodiments, the probe delivery device 600 may include a probe delivery mechanism 650 that allows a probe 653 to advance distally through an IV catheter and subsequently retract proximally. In some embodiments, compartments 620 / 620a / 620b are formed within the probe delivery device 600 and accommodate the probe delivery mechanism 650. In some embodiments, a partition wall 615 may form a probe channel 621 extending distally from the compartment 620 and merging into the fluid passage 610 at a distal portion 610a. In some embodiments, a seal 622 may be positioned within and across the probe channel 621 to isolate the probe channel 621 from the fluid passage 610.

[0084] In some embodiments, the probe delivery mechanism 650 may include a pinion 655 configured to rotate within a compartment 620. In some embodiments, the probe delivery mechanism 650 may also include a rack mechanism 652 having a rack 652b and an actuator portion 652a. In some embodiments, the actuator portion 652a may extend from the proximal portion 620b of the compartment 620, allowing a clinician to slide the rack mechanism 652 along the proximal portion 620b and the distal portion 620a of the compartment 620 using his or her thumb or finger. In some embodiments, the rack 652b may be positioned to interact with the pinion 655 such that the pinion 655 rotates as the rack 652b slides laterally. In some embodiments, the pinion 655 may include a reel drum (not shown) around which the probe 653 may be wound. This reel drum of the pinion 655 may be similar to the reel drum described above. Thus, as the rack mechanism 652 slides distally, the probe 653 may be advanced distally. Similarly, as the rack mechanism 652 slides proximally, the probe 653 can retract proximally. In some embodiments, the position of the actuator portion 652a can thus indicate the distance traveled by the probe 653. In some embodiments, a scale or other markings may be formed on a portion of the housing 605 along which the actuator portion 652a slides.

[0085] Figure 7 Another example of a probe delivery device 700 according to some embodiments is shown. In some embodiments, the probe delivery device 700 may be similar to or the same as one or more of the following in terms of one or more features and / or operation: probe delivery device 100, probe delivery device 200, probe delivery device 300, probe delivery device 400, probe delivery device 500, and probe delivery device 600. In some embodiments, the probe delivery device 700 may include a housing 705 having a distal end 700a forming a connector 706 and a proximal end 700b having a conduit 730a having a connector 730a extending therefrom. In some embodiments, a fluid passage 710 may extend within the probe delivery device 700 from the conduit 730 to the distal end 700a.

[0086] In some embodiments, the probe delivery device 700 may include a probe delivery mechanism 750 that allows a probe 753 to advance distally through the IV catheter and subsequently retract proximally. In some embodiments, a compartment 720 is formed within the probe delivery device 700 and houses the probe delivery mechanism 750. In some embodiments, a partition wall 715 forms a probe channel 721 extending distally from the compartment 720 and merging into the fluid passage 710 at a distal portion 710a. In some embodiments, a seal 722 may be positioned within and across the probe channel 721 to isolate the probe channel 721 from the fluid passage 710.

[0087] In some embodiments, the probe delivery mechanism 750 may include a shaft 751 positioned proximally at the probe channel 721 and a drive wheel 752 positioned within the compartment 720 and extending from the housing 705. In some embodiments, the drive wheel 752 may include teeth 752a that mesh with teeth 751a of the shaft 751. Thus, when a clinician rotates the drive wheel 752, the shaft 751 will move linearly within the probe channel 721. In some embodiments, the probe 753 may be fixed within the shaft 751 such that when the shaft 751 moves linearly, the probe 753 will be advanced distally or retracted proximally depending on the direction of rotation of the drive wheel 752.

[0088] Figure 8Another example of a probe delivery device 800 according to some embodiments is shown. In some embodiments, the probe delivery device 800 may be similar to or the same as one or more of the following in terms of one or more features and / or operation: probe delivery device 100, probe delivery device 200, probe delivery device 300, probe delivery device 400, probe delivery device 500, probe delivery device 600, and probe delivery device 700. In some embodiments, the probe delivery device 800 may include a housing 805 having a distal end 800a and a proximal end 800b, the distal end being constructed in any of the ways described above, and the proximal end forming a vacuum tube receiver 830 having a needle 831 covered by a protective sleeve 832. In some embodiments, a fluid passage 810 may extend within the probe delivery device 800 from the needle 831 to the distal end 800a.

[0089] In some embodiments, the probe delivery device 800 may include a probe delivery mechanism 850 that enables a probe 853 to advance through an IV catheter in a distal direction and subsequently retract in a proximal direction. In some embodiments, a compartment 820 is formed within the probe delivery device 800, and the compartment houses the probe delivery mechanism 850. In some embodiments, a partition wall 815 may form a probe channel 821 extending distally from the compartment 820 and merging into the fluid passage 810 at a distal portion 810a of the fluid passage 810. In some embodiments, a seal 822 may be positioned within and across the probe channel 821 to isolate the probe channel 821 from the fluid passage 810.

[0090] In some embodiments, the probe delivery mechanism 850 may include a sliding member 851 having an actuator portion 851a extending from a compartment 820 and a wheel 851b connected to the actuator portion 851a. In some embodiments, the compartment 820 may be configured to allow the sliding member 851 to slide distally and proximally within the compartment 820 when a clinician applies force to the actuator portion 851a. In some embodiments, an end portion 853a of the probe 853 may be secured to a housing 805 toward the distal end of the compartment 820. In some embodiments, the probe 853 is initially positioned about the wheel 851b in a proximal direction and then passes through the probe channel 821 in a distal direction. In some embodiments, the wheel 851b may be configured to maintain contact between the probe 853 and the wheel 851b even as the sliding member 851 slides within the compartment 820 (e.g., using a retaining rod (not shown) that performs a similar function to the auxiliary wheel 462). Therefore, as the sliding member 851 slides distally, the wheel 851b can rotate, thereby causing the probe 853 to advance distally. In some embodiments, because the probe 853 itself "folds back," the probe 853 will advance / retract twice the distance of the sliding member 851.

[0091] Many variations are described in the context of the particular embodiments described. Note that such variations can be applied to any of the above or depicted embodiments, even if not explicitly described for each depicted embodiment. Many additional variations are also possible, as now described.

[0092] In some embodiments, the probe delivery mechanism may include a spring or other mechanism that becomes loaded as the probe advances. In such embodiments, the probe delivery mechanism may also include a ratchet mechanism or locking mechanism that prevents the spring from unloading until the clinician releases the ratchet mechanism or locking mechanism (e.g., by pressing a button). Once released, the spring can automatically retract the probe. For example, in… Figure 2 In this context, a spring and ratchet mechanism can be integrated into the reel 251, and a release button can be integrated into the housing 205. In this configuration, the spring is loaded when the reel 251 is rotated to advance the probe 253. Once the clinician wishes to withdraw the probe 253, he or she can press the button to release the ratchet mechanism. The loaded spring then causes the reel 251 to rotate in the opposite direction, causing the probe 253 to rewind around the reel drum 251c. Similar techniques can be used in any embodiment employing wheels, reels, or other rotating components. Regarding probe delivery mechanisms 650 and 850, a linear spring can be loaded when the corresponding actuator portion slides distally and unloads in response to the clinician releasing the ratchet mechanism or other locking mechanism.

[0093] In any of the described embodiments, the probe delivery device may include some type of marking indicating how far the probe has advanced. Such markings may be passive (e.g., ruler markings, labels, colors, scales, numbers, symbols, etc.) or active (e.g., digital displays, speakers, etc.). Furthermore, in any of the described embodiments, the probe delivery mechanism may include mechanisms for preventing the probe from over-advancing or over-retracting. For example, embodiments employing a rotating component may include a stop that engages the rotating component when the probe has reached its maximum advance distance. As described above, although the described embodiments show a fluid passage extending to the proximal end of the probe delivery device, in some embodiments, the fluid passage may extend from the probe delivery device at points other than the proximal end, including extending toward the distal end of the probe delivery device. By way of example only, the fluid passage 110 may extend from the probe delivery device 100 toward the distal portion 110a at a point opposite the probe delivery mechanism 150 to form a vacuum tube receiver or other connector.

[0094] In any of the embodiments described, the fluid passage and the probe channel can be the same passage / channel. For example, Figure 9A probe delivery device 900 is shown, similar to probe delivery device 100, except that probe delivery device 900 does not include fluid passage 110 or seal 122. Instead, probe channel 121 forms the distal portion of the fluid passage. In some embodiments, the proximal portion 910 of the fluid passage may extend from reel 155 to needle 131 (or any other connector / adapter may be used). In such embodiments, probe 153 may be in the form of a tube, such that probe 153 forms the proximal portion 910 of the fluid passage. In other words, the proximal end of probe 153 may extend proximally (or in some other direction) from reel 155 to connect to needle 131. In other variations, a separate conduit may extend from probe channel or a compartment housing probe delivery mechanism to form the proximal end of the fluid passage. For example, a separate tube or channel may be formed by compartments 520, 620, or 820 to form a fluid passage to a vacuum tube receiver or other connector.

[0095] Figures 10A-10C Another example of a probe delivery device 1000 according to some embodiments is shown. In some embodiments, the probe delivery device 1000 may be similar to or the same as one or more of the following in terms of one or more features and / or operation: probe delivery device 100, probe delivery device 200, probe delivery device 300, probe delivery device 400, probe delivery device 500, probe delivery device 600, probe delivery device 700, probe delivery device 800, and probe delivery device 900.

[0096] In some embodiments, the probe delivery device 1000 may include a housing 1005, which may include a distal end 1000a and a proximal end 1000b. In some embodiments, the distal end 1000a may include any type of connector to enable the probe delivery device 1000 to connect to an IV catheter device 1002 or an IV catheter-compatible device. In some embodiments, the proximal end 1000b may be configured to form a vacuum tube receiver, which may include a needle covered by a protective sheath (e.g., see...). Figure 1 In some embodiments, such as Figure 10B As shown, the proximal end 1000b may include a Luer connector or another suitable type of connector that is coupled to the blood collection device 1012.

[0097] In some embodiments, the fluid passage 1010 may extend within the probe delivery device 1000 through the distal end 1000a and proximal end 1000b of the housing 1005. Therefore, when the blood collection device 1012 is coupled to the proximal end 1000b, a blood sample can be collected through the fluid passage 1010. In some embodiments, the fluid passage 1010 may be configured to connect a side port of the IV catheter device 1002 to the blood collection device 1012, and relative to... Figures 10A-10BThe cross-section shown can be arranged laterally. In some embodiments, the fluid passage 1010 may extend through a tube that is connected to or integrated with the side port of the IV catheter device 1002 and the blood collection device 1012, for example, as... Figure 10C As shown. In Figure 10C In some embodiments, the housing 1005 is transparent, which allows the internal components of the housing 1005 to be shown.

[0098] In some embodiments, the probe delivery device 1000 may include a probe delivery mechanism 1050 that allows a probe 1053 to advance distally through an IV catheter 1054 and / or subsequently retract proximally. In some embodiments, the probe 1053 may include a guidewire made of nickel-titanium or other suitable material. In some embodiments, a compartment 1020 may be formed within the probe delivery device 1000 and may accommodate the probe delivery mechanism 1050. In some embodiments, a partition wall 1015 may form a probe channel 1021 that extends distally from the compartment 1020 and merges into the fluid passage 1010 at a distal portion 1010a.

[0099] In some embodiments, to isolate the compartment 1020 from the fluid passage 1010, a seal 1022 (e.g., an elastomeric diaphragm) may be positioned within and across the probe channel 1021. In some embodiments, a probe 1053 may extend through a slit or other opening formed within the seal 1022. In some embodiments, the seal 1022 may provide support for the probe 1053 to prevent it from bending during advancement.

[0100] In some embodiments, the probe delivery mechanism 1050 may include a spool 1055 and a feed wheel 1052, both of which may be configured to rotate within the compartment 1020. In some embodiments, the spool 1055 may be positioned adjacent to the feed wheel 1052 (e.g., towards the probe channel 1021 relative to the feed wheel 1052). In some embodiments, the feed wheel 1052 may be positioned to partially extend from the compartment 1020, thereby allowing a clinician to rotate the feed wheel 1052 using his or her thumb or finger. In some embodiments, the spool 1055 may include a gear 1056 having teeth 1056a. Similarly, in some embodiments, the feed wheel 1052 may include teeth 1052a and thus may function as a gear. In some embodiments, teeth 1052a may mesh with teeth 1056a such that the spool 1055 rotates when the feed wheel 1052 rotates. In some embodiments, teeth 1052a may be formed along the outermost edge of the feed wheel 1052. However, in other embodiments, the tooth 1052a may be formed along a portion of the propulsion wheel that is positioned inward relative to the outermost edge.

[0101] Figure 10D An exploded rear view of a probe delivery mechanism 1050, shown independently according to some embodiments, is provided. In some embodiments, a spool 1055 and a drive wheel 1052 may each include shafts 1055B and 1052B, which are positioned within a compartment 1020 by their respective shafts and rotate about their respective shafts. In some embodiments, the spool 1055 may include a spool drum 1055a around which a probe 1053 may be wound. Thus, as the spool 1055 rotates, the rotation can cause the probe 1053 to advance or retract along the probe channel 1021 depending on the direction of rotation of the drive wheel 1052. In some embodiments, the gear formed by the drive wheel 1052 may have a larger diameter than the gear 1056, thereby allowing the probe 1053 to advance or retract a greater distance relative to the amount of rotation of the drive wheel 1052. Conversely, in other embodiments, the gear formed by the drive wheel 1052 may have a diameter equal to or smaller than the diameter of the gear 1056. In such an embodiment, the probe 1053 may advance or retract a small distance relative to the rotation of the propulsion wheel 1052, but such advance or retraction can be achieved by applying a reduced amount of force to the propulsion wheel 1052.

[0102] In some embodiments, the probe delivery device 1000 may include a seal (not shown) within a compartment 1020 that isolates the reel drum 1055a and the probe 1053 from the external environment. In some embodiments, the seal 1022 may or may not be used, as fluid entering the probe channel 1021 can be prevented from escaping from the compartment 1020 by the seal within the compartment 1020.

[0103] In some embodiments, the probe delivery device 1000 can facilitate needleless delivery of the probe 1219 into the patient's vascular system by utilizing existing vascular access devices (e.g., IV catheter device 1002) present within the patient's vascular system for blood collection, fluid delivery, patient or device monitoring, or other clinical needs. In some embodiments, the probe delivery device 1000 can reduce trauma to the vein, reduce filling time, and overcome thrombi and fibrin sheaths in or around the vascular access device that could otherwise prevent blood aspiration.

[0104] In some embodiments, the reel 1055 may be rotated or allowed to rotate to advance the probe 1053 in a distal direction. In some embodiments, it is important to have means for stopping the reel 1055 and / or the feed wheel 1052. More specifically, in some embodiments, the feed wheel 1052 may include a stop member 1059, and the housing 1005 may include another stop member 1061. In some embodiments, the stop member 1059 may be disposed on the outer surface of the feed wheel 1052 and / or the other stop member 1061 may be disposed on the inner surface 1057 of the housing 1005. In some embodiments, the stop member 1059 and / or the other stop member 1061 may include a protrusion or another element configured to contact or interfere with each other and stop further rotation of the feed wheel 1052. In some embodiments, the stop member 1059 and the other stop member 1061 may be configured to contact each other to stop rotation of the feed wheel 1052 and the reel 1055.

[0105] Figure 10A The propulsion wheel 1052 and probe 1053 in a first configuration according to some embodiments are shown. Figure 10B A propulsion wheel 1052 and a probe 1053 are shown in a second configuration according to some embodiments, in which the probe 1053 is propelled. In some embodiments, the propulsion wheel 1052 can rotate between a first configuration and a second configuration, but can be prevented from completing a full revolution by contact between a stop member 1059 and another stop member 1061, which can stop the rotation of the propulsion wheel 1052. In some embodiments, the propulsion wheel 1052 can rotate in the opposite direction from the second configuration to the first configuration to retract the probe 1053 after use. In some embodiments, the contact between the stop member 1059 and the other stop member 1061 prevents the propulsion wheel 1052 from rotating more than 360 degrees.

[0106] In some embodiments, the propulsion wheel can rotate from a first configuration to a second configuration in a first direction. In some embodiments, in the first configuration, stop member 1059 and the other stop member 1061 can contact each other to stop the rotation of the propulsion wheel 1052 in a second direction opposite to the first direction. In some embodiments, in the second configuration, stop member 1059 and the other stop member 1061 can be configured to contact each other to prevent further rotation of the propulsion wheel 1052 in the first direction, thereby stopping the advance of the probe 1053 in the distal direction.

[0107] In some embodiments, the outer surface of the propulsion wheel 1052 may include a protrusion 1063 and / or another protrusion 1065, which may be spaced apart from the stop member 1059. In some embodiments, the width of the other stop member 1061 may be approximately equal to or slightly smaller than the spacing between the protrusion 1063 and the stop member 1059 and / or the spacing between the other protrusion 1065 and the stop member 1059. Thus, in some embodiments, the other stop member 1061 may engage tightly between the protrusion 1063 and the stop member 1059 and / or between the other protrusion 1065 and the stop member 1059. In some embodiments, the protrusion 1063 and / or the other protrusion 1065 may provide some fixation of the probe 1053 in the forward position and / or retracted position.

[0108] In some embodiments, protrusion 1063 may provide resistance to the movement and rotation of propulsion wheel 1052 when propulsion wheel 1052 is in a first configuration. In some embodiments, when propulsion wheel 1052 is in a second configuration, another protrusion 1065 may provide resistance to the movement and rotation of propulsion wheel 1052. In some embodiments, protrusion 1063 and / or the other protrusion 1065 may each have a width and / or height smaller than that of stop member 1059, such that the resistance to the movement and rotation of propulsion wheel 1052 provided by protrusion 1063 and / or the other protrusion 1065 can be overcome, for example, to rotate propulsion wheel 1052 from the first configuration to the second configuration and from the second configuration to the first configuration. In some embodiments, stop member 1059 may extend inwardly further than the other stop member 1061 to block the passage of the other stop member 1061.

[0109] It should be understood that in some embodiments, protrusion 1063 and / or another protrusion 1065 may be disposed on the inner surface of housing 1005 to perform the same or similar functions. In these embodiments, protrusion 1063 and / or another protrusion 1065 may be spaced apart from the other stop member 1061, and the width of stop member 1059 may be approximately equal to or slightly less than the distance between protrusion 1063 and the other stop member 1061 and / or the distance between another protrusion 1065 and the other stop member 1061. It should also be understood that protrusion 1063, another protrusion 1065, or one or more additional protrusions may be disposed at alternating positions on the outer surface of propulsion wheel 1052 and / or the inner surface of housing 1005. In these embodiments, one or more of protrusion 1063, another protrusion 1065, and one or more additional protrusions may signal to the clinician that propulsion wheel 1052, and therefore reel 1055 and probe 1053, are in a specific position.

[0110] Figure 11A-11EAnother example of a probe delivery device 1100 according to some embodiments is shown. In some embodiments, the probe delivery device 1100 may be similar to or identical to one or more of the following in terms of one or more features and / or operation: probe delivery device 100, probe delivery device 200, probe delivery device 300, probe delivery device 400, probe delivery device 500, probe delivery device 600, probe delivery device 700, probe delivery device 800, probe delivery device 900, and probe delivery device 1000. In some embodiments, the probe delivery device 1100 can be drawn from... Figure 11A Move to Figures 11B to 11C arrive Figures 11D to 11E .

[0111] In some embodiments, the probe delivery device 1100 may include a first wheel 1102 and a second wheel 1104. In some embodiments, the first wheel 1102 of the probe delivery device 1100 may include or correspond to Figure 1 Propulsion wheel 152, Figure 1 Scroll 155 Figure 2 Scroll 251 Figure 3 Scroll 351 Figure 4 Scroll 451 Figure 5 propulsion wheel 552, Figure 5 First guide wheel 555 Figure 6 Small gear 655, Figure 7 The propulsion wheel 752, or the propulsion wheel 1052 in Figure 10.

[0112] In some embodiments, the probe delivery device 1100 may include a housing 1105, which may include a distal end and a proximal end. In some embodiments, the distal end of the housing 1105 may be configured to connect to an IV catheter device. In some embodiments, the housing 1105 of the probe delivery device 1100 may include or correspond to Figure 1 105 of the shell Figure 2 205 shell Figure 3 305 casing Figure 4 405 shell Figure 5 505 casing Figure 6 605 shell Figure 7 705 casing Figure 8 The housing 805 or the housing 1005 in Figure 10.

[0113] In some embodiments, the inner surface 1107 of the housing 1105 may include a housing stop member 1109, which may include a protrusion. In some embodiments, the housing stop member 1109 may include a first side 1109a and a second side 1109b opposite to the first side 1109a.

[0114] In some embodiments, the first wheel 1102 is rotatable on a shaft 1111. In some embodiments, the first wheel 1102 may include a protrusion or rod 1110 rotatable on the shaft 1111. In some embodiments, the shaft 1111 may be aligned with the central axis of the first wheel 1102. In some embodiments, the second wheel 1104 may be disposed on the rod 1110 and configured to slide relative to and / or rotate independently of the rod 1110. In some embodiments, the second wheel 1104 may ride directly on the shaft 1111 together with the first wheel 1102. In some embodiments, the shaft 1111 may extend inwardly from the housing 1105. In some embodiments, the first wheel 1102 and the second wheel 1104 may rotate about the same axis and / or the second wheel 1104 may be disposed within the first wheel 1102.

[0115] In some embodiments, the inner surface 1113 of the first wheel 1102 may include a first wheel stop member 1115, which may include a protrusion. In some embodiments, a gap may be provided between the housing stop member 1109 and the first wheel stop member 1115. In some embodiments, the second wheel 1104 may include a tab 1117, which may be configured to bridge the gap between the housing stop member 1109 and the first wheel stop member 1115.

[0116] In some embodiments, the probe delivery device 1100 may include a probe. In some embodiments, the probe housing of the probe delivery device 1100 may include or correspond to a probe. Figure 1 Probe 153 Figure 2 Probe 253, Figure 3 Probe 353, Figure 4 Probe 453, Figure 5 probe 553, Figure 6 Probe 653, Figure 7 Probe 753, Figure 8 The probe 853 or the probe 1053 in Figure 10.

[0117] In some embodiments, the first wheel 1102 may be configured to rotate to advance the probe in a distal direction through the distal end of the housing 1105. In some embodiments, the first wheel 1102 may be configured to rotate more than one full revolution. In some embodiments, the probe delivery device 1100 may be configured in a first configuration, such as... Figure 11A As shown.

[0118] In some embodiments, in response to the probe delivery device 1100 being disposed in the first configuration, a tab 1117 may be disposed between the housing stop member 1109 and the first wheel stop member 1115, and may contact the housing stop member 1109 and the first wheel stop member 1115. In these embodiments, a first side 1117a of the tab 1117 may contact a first side 1109a of the housing stop member 1109, and a second side 1117b of the tab 1117 may contact a first side 1115a of the first wheel stop member 1115. In some embodiments, in response to the probe delivery device 1100 being disposed in the first configuration, the first wheel 1102 and / or the second wheel 1104 may be prevented from rotating toward the housing stop member 1109 in a first direction 1121, but may be configured to rotate in a second direction 1123 opposite to the first direction 1121. In some embodiments, the first wheel 1102 may be configured to rotate more than one full revolution in the second direction.

[0119] In some embodiments, in response to the probe delivery device 1100 being disposed in the first configuration, the first wheel 1102 may be configured to rotate independently of the housing 1105 and the second wheel 1104 in a second direction 1123 until the first wheel stop member 1115 contacts the tab 1117. In these embodiments, the first wheel 1102 may be configured to rotate independently of the housing 1105 and the second wheel 1104 in a second direction 1123 opposite to the first direction 1121 until the second side 1115b of the first wheel stop member 1115 contacts the first side 1117a of the tab 1117, which may be disposed on the side of the tab 1117 opposite to the second side 1117b. In these embodiments, the first wheel 1102 may be configured to rotate almost a full revolution independently of the housing 1105 and the second wheel 1104.

[0120] In some embodiments, the probe can be in a retracted or fully retracted position in response to the probe delivery device 1100 being in a first configuration. In some embodiments, in response to the first wheel 1102 rotating independently of the housing 1105 and the second wheel 1104 along a second direction 1123 until the first wheel stop member 1115 contacts the second side 1117b of the tab 1117, the first wheel 1102 and the second wheel 1104 are configured to rotate together further along the second direction 1123 until the probe delivery device 1100 is positioned in the second configuration. In these embodiments, the first wheel 1102 and the second wheel 1104 may be configured to rotate together for almost a full revolution.

[0121] In some embodiments, the probe can be in an advancing or fully advanced position in response to the probe delivery device 1100 being in a second configuration. In some embodiments, in the second configuration, the tab 1117 can be disposed between the housing stop member 1109 and the first wheel stop member 1115, and can contact the housing stop member 1109 and the first wheel stop member 1115. In these embodiments, as Figure 11E As shown, the second side 1117b of the tab 1117 can contact the second side 1109b of the housing stop member 1109, and the first side 1117a of the tab 1117 can contact the second side 1115b of the first wheel stop member 1115.

[0122] In some embodiments, Figure 11B The diagram illustrates that the first wheel 1102 rotates independently of the first configuration in a second direction 1123. In some embodiments, the first wheel 1102 may rotate independently of the first configuration along the second direction 1123 until the first side 1115a of the first wheel stop member 1115 contacts the first side 1117a of the tab 1117, for example, as shown. Figure 11C As shown. In some embodiments, Figure 11D It is shown that the first wheel 1102 and the second wheel 1104 can rotate together further along the second direction 1123, for example, as Figure 11D As shown. In some embodiments, the first wheel 1102 and the second wheel 1104 can rotate together until the second side 1117b of the tab 1117 contacts the second side 1109b of the housing stop member 1109, for example, as Figure 11E As shown, this prevents further rotation along the second direction 1123.

[0123] In some embodiments, the first wheel 1102 may be configured to rotate nearly two full revolutions from a first configuration to a second configuration. It will be understood that in some embodiments, the probe delivery device 1100 includes one or more other wheels that operate in a similar manner to the second wheel 1104, such that each wheel allows the first wheel 1102 to rotate nearly another full revolution. In these embodiments, one or more other wheels may be disposed between the second wheel 1104 and the housing stop member 1109.

[0124] In some embodiments, the first wheel 1102 may extend from the housing 1105, which facilitates rotation of the first wheel 1102 by the clinician's finger. In some embodiments, to advance the probe, the clinician may rotate the portion of the first wheel 1102 exposed from the housing 1105 toward the distal end 1100a of the housing 1105 or in a second direction 1123 to advance the probe distally. In some embodiments, the clinician may rotate the portion of the first wheel 1102 exposed from the housing 1105 away from the distal end 1100a of the housing 1105 or along the first direction 1121 to retract the probe proximally.

[0125] However, it should be understood that in some embodiments, the positions of the housing stop member 1109 and the first wheel stop member 1115 may be reversed. In these embodiments, the clinician may rotate the portion of the first wheel 1102 exposed from the housing 1105 away from the distal end 1100a of the housing 1105 or along the first direction 1121 to advance the probe distally, and / or the clinician may rotate the portion of the first wheel 1102 exposed from the housing 1105 away from the distal end 1100a of the housing 1105 or along the first direction 1121 to retract the probe proximally. In some embodiments, the positions of the housing stop member 1109, the tab 1117, and the first wheel stop member 1115 in the first configuration may be changed.

[0126] In some embodiments, additional geometry may be added to the first wheel 1102 and / or housing 1105, thus providing braking at the beginning and / or end of rotation or travel of the first wheel 1102. In some embodiments, multiple braking elements may act against a second wheel 1104, and the second wheel 1104 may slide axially to allow one braking element to act at a time. The additional geometry may include different ramp angles to cause one ramp to act before another. Figure 12A-12K An example of additional geometry is shown in the figure.

[0127] Figure 12A-12K Another example of a probe delivery device 1200 according to some embodiments is shown. In some embodiments, the probe delivery device 1200 may be similar to or identical to one or more of the following in terms of one or more features and / or operation: probe delivery device 100, probe delivery device 200, probe delivery device 300, probe delivery device 400, probe delivery device 500, probe delivery device 600, probe delivery device 700, probe delivery device 800, probe delivery device 900, probe delivery device 1000, and probe delivery device 1100. In some embodiments, the probe delivery device 1200 can be drawn from... Figure 12A / 12B position moved to Figure 12C / 12D position, Figure 12E / 12F location, Figure 12G Location Figure 12H / 12I position, Figure 12J The location is / 12K.

[0128] In some embodiments, the probe delivery device 1200 may include a first wheel 1202 and a second wheel 1204. In some embodiments, the first wheel 1202 of the probe delivery device 1200 may include or correspond to Figure 1 Feed wheel 152 Figure 1 Scroll 155 Figure 2 Scroll 251 Figure 3 Scroll 351 Figure 4 Scroll 451 Figure 5 propulsion wheel 552, Figure 5 First guide wheel 555 Figure 6 Small gear 655, Figure 7 The propulsion wheel 752, the propulsion wheel 1052 in Figure 10, or the first wheel 1102 in Figure 11.

[0129] In some embodiments, the probe delivery device 1200 may include a housing 1205, which may include a distal end and a proximal end. In some embodiments, the distal end of the housing 1205 may be configured to be coupled to an intravenous catheter device. In some embodiments, the housing 1205 of the probe delivery device 1200 may include or correspond to Figure 1 105 of the shell Figure 2 205 shell Figure 3 305 casing Figure 4 405 shell Figure 5 505 casing Figure 6 605 shell Figure 7 705 casing Figure 8 The housing 805, the housing 1005 of Figure 10, or the housing 1105 of Figure 11.

[0130] In some embodiments, the inner surface 1207 of the housing 1205 may include a housing stop member 1209, which may include a protrusion. In some embodiments, the housing stop member 1209 may include a first side 1209a and a second side 1209b that may be opposite to the first side 1209a.

[0131] In some embodiments, the probe delivery device 1200 may include a shaft 1211, and a first wheel 1202 may be configured to rotate with the shaft 1211, which may be concentric with the first wheel 1202. In some embodiments, the inner surface 1213 of the first wheel 1202 may include a first wheel stop member 1215, which may include a protrusion. In some embodiments, a gap may be provided between the housing stop member 1209 and the first wheel stop member 1215. In some embodiments, a second wheel 1204 may include a tab 1217 configured to bridge the gap between the housing stop member 1209 and the first wheel stop member 1215. In some embodiments, the second wheel 1204 may be disposed on the shaft 1211. In some embodiments, the second wheel 1204 may be configured to rotate with the shaft 1211 and move axially along the shaft 1211.

[0132] In some embodiments, the probe delivery device 1200 may include a probe. In some embodiments, the probe housing of the probe delivery device 1200 may include or correspond to a probe. Figure 1 Probe 153 Figure 2 Probe 253, Figure 3 Probe 353, Figure 4 Probe 453, Figure 5 probe 553, Figure 6 Probe 653, Figure 7 Probe 753, Figure 8 The probe is 853 or 1053 of FIG. 10. In some embodiments, the probe may include a guide wire made of nickel-titanium or another suitable material. In some embodiments, the first wheel 1202 may be configured to rotate to advance the probe 1219 in a distal direction through the distal end of the housing 1205. In some embodiments, the first wheel 1202 may be configured to rotate more than one full revolution.

[0133] In some embodiments, the inner surface 1207 of the housing 1205 may include a housing braking portion 1225. In some embodiments, the inner surface 1207 of the housing 1205 may include a housing inclined surface 1227. In some embodiments, the housing stop portion 1225 may be disposed between the housing stop member 1209 and the housing inclined surface 1227. In some embodiments, the inner surface 1213 of the first wheel 1202 may include a first wheel braking portion 1229. In some embodiments, the inner surface 1213 may include a first wheel inclined surface 1231. In some embodiments, the first wheel braking portion 1229 may be disposed between the first wheel stop member 1215 and the first wheel inclined surface 1231.

[0134] In some embodiments, in response to the probe delivery device 1200 being disposed in the first configuration, the tab 1217 may be disposed within the housing brake 1225, the first wheel brake 1229, and the first wheel 1202. In these embodiments, the first wheel 1202 may be prevented from rotating in a first direction 1221, but may be configured to rotate in a second direction 1223 opposite to the first direction 1221. In some embodiments, the first wheel 1202 may be configured to rotate more than one full revolution in the second direction 1223. In some embodiments, the housing brake 1225 may be disposed opposite the first wheel brake 1229 in the first configuration.

[0135] In some embodiments, the first wheel 1202 may be configured to rotate in a second direction 1223 to advance the probe through the distal end of the housing 1205 in a distal direction. In some embodiments, in response to rotation of the first wheel 1202 from the first configuration in the second direction, the tab 1217 may be removed from the first wheel brake 1229 before the tab 1217 is removed from the housing brake 1225. In these embodiments, the tab 1217 may be removed from the housing brake 1225 in response to sliding toward the inner surface 1213 of the first wheel 1202. In some embodiments, the tab 1217 may be removed from the first wheel brake 1229 before the tab 1217 is removed from the housing brake 1225 because the housing brake 1225 may be shallower or have a shallower angle than the first wheel brake 1229 to allow the tab 1217 to slide obliquely out of the housing brake 1225.

[0136] In some embodiments, the housing inclined surface 1227 may be inclined toward the housing braking portion 1225. In some embodiments, the first wheel inclined surface 1231 may be inclined toward the first wheel braking portion 1229. In some embodiments, the housing inclined surface 1227 and the first wheel inclined surface 1231 may be inclined in different directions.

[0137] In some embodiments, the inner surface 1207 of the housing 1205 may include another housing brake portion 1233 and / or another housing inclined surface 1235. In some embodiments, the other housing brake portion 1233 may be disposed between the housing stop member 1209 and the other housing inclined surface 1235, and on the side of the housing stop member 1209 opposite to the housing brake portion 1225. In some embodiments, in response to the probe delivery device 1200 being disposed in a second configuration, a tab 1217 may be disposed within the other housing brake portion 1233 and the other first wheel brake portion 1239.

[0138] In some embodiments, the first wheel 1202 may be configured to rotate from a first configuration to a second configuration, and the tab 1217 may be arranged in the second configuration within the other housing brake 1233 and the other first wheel brake 1239. In some embodiments, to move from the first configuration to the second configuration, the tab 1217 may contact the housing stop member 1209. In some embodiments, in response to the tab 1217 contacting the housing stop member 1209 and in response to further rotation of the first wheel 1202 in a second direction, the tab 1217 may move along the other first wheel inclined surface 1237 and may be pushed by the other first wheel inclined surface 1237 toward the inner surface 1207 of the housing 1205 and into the other housing brake 1233.

[0139] In some embodiments, this provides resistance to movement or rotation when the tab 1217 can snap into and / or disengage from the housing brake 1225, the other housing brake 1233, and the first wheel brake 1229. In some embodiments, one or more of the housing inclined surface 1227, the first wheel inclined surface 1231, and the other housing inclined surface 1235 may facilitate the guidance of the tab 1217 and the second wheel 1204, and the second wheel 1204 may be axially movable along the axis 1211.

[0140] In some embodiments, in response to the first wheel 1202 and the second wheel 1204 moving from a first configuration to a second configuration in a second direction 1223, the tab 1217 may contact the housing stop member 1209. In some embodiments, in response to the tab 1217 contacting the housing stop member 1209 and in response to further rotation of the first wheel 1202 in the second direction 1223, the tab 1217 may move along the other first wheel inclined surface 1237 and be pushed into the other housing brake portion 1233 by the other first wheel inclined surface 1237. In some embodiments, when the tab 1217 is inserted into the other housing brake portion 1233, it may snap into the other first wheel brake portion 1239. In some embodiments, the other first wheel inclined surface 1231 may be inclined toward the first wheel brake portion 1229 and may help guide the tab 1217.

[0141] In some embodiments, such as Figure 12A-12KAs shown, the inner surface 1207 of the housing 1205 may include the other housing brake 1233. It should be understood that in some embodiments, the probe delivery device 1200 may be modified such that the tab 1217 disengages from the latch with the housing brake 1225 before disengaging from the latch with the first wheel brake 1229. In these embodiments, the first wheel 1202 may include the other housing brake 1233 and / or the other inclined surface 1235, which may be disposed on the side of the first wheel stop member 1215 opposite to the first wheel brake 1229. In these embodiments, Figure 12A-12K A specific arrangement on the inner surface 1207 of one or more of the following portions—the inclined surface 1227 of the housing, the other inclined surface 1235, the housing stop member 1209, the housing brake portion 1225, the stop member, and the other housing brake portion 1233—may alternatively be provided on the inner surface of the first wheel 1202. In these embodiments, one or more of the first wheel inclined surface 1231, the other first wheel inclined surface 1237, the first wheel stop member 1215, the first wheel brake portion 1229, and the other first wheel brake portion 1239—may alternatively be provided on the inner surface 1207 of the housing 1205. In some embodiments, in a second configuration, the tab 1217 may be arranged within the other housing brake portion 1233 on the inner surface 1213 of the first wheel, and within either the housing brake portion or the first wheel brake portion. In these and other embodiments, the first direction 1221 and the second direction 1223 may be opposite.

[0142] All examples and conditional language described herein are for educational purposes, to help the reader understand the invention and the concepts contributed by the inventors to advance the art, and should be construed as not being limited to such specifically described examples and conditions. Although embodiments of the invention have been described in detail, it should be understood that various changes, substitutions, and modifications can be made therein without departing from the spirit and scope of the invention.

Claims

1. A probe delivery device for transporting probes, characterized in that, The probe delivery device comprises: a housing comprising a distal end and a proximal end, wherein the distal end is configured to couple to an intravenous catheter device, wherein an inner surface of the housing comprises a housing stop member; a first wheel, wherein an inner surface of the first wheel comprises a first wheel stop member; and a second wheel, wherein the second wheel comprises a tab, wherein the first wheel and the second wheel are rotatable in a first direction and a second direction to cause the probe to transition between a first configuration in which the probe is in a fully retracted position and a second configuration in which the probe is in a fully advanced position; and wherein, in response to the probe delivery device being disposed in the first configuration, the first wheel and the second wheel are prevented from rotating in the first direction but are configured to rotate in the second direction opposite the first direction, wherein the first wheel is configured to rotate more than one full revolution in the second direction.

2. The probe delivery device of claim 1, wherein, In response to the probe delivery device being disposed in the first configuration, a gap is disposed between the housing stop member and the first wheel stop member, and the tab bridges the gap between the housing stop member and the first wheel stop member.

3. The probe delivery device of claim 1, wherein, In response to the probe delivery device being disposed in the first configuration, the tab is disposed between the housing stop member and the first wheel stop member and contacts the housing stop member and the first wheel stop member, wherein, in response to the probe delivery device being disposed in the first configuration, the first wheel is configured to rotate in the second direction independently of the housing and the second wheel until the first wheel stop member contacts the tab.

4. The probe delivery device of claim 3, wherein, In response to the first wheel rotating in the second direction independently of the housing and the second wheel until the first wheel stop member contacts the tab, the first wheel and the second wheel are configured to further rotate together in the second direction until the probe delivery device is disposed in the second configuration, wherein in the second configuration the tab is disposed between the housing stop member and the first wheel stop member and contacts the housing stop member and the first wheel stop member.

5. The probe delivery device of claim 4, wherein, The first wheel is configured to rotate in the second direction to advance the probe in a distal direction through the distal end of the housing.

6. A probe delivery device for delivering a probe, the device comprising: The probe delivery device comprises: a housing comprising a distal end and a proximal end, wherein the distal end is configured to couple to an intravenous catheter device, wherein an inner surface of the housing comprises a housing stop member and a housing detent; a shaft; a first wheel configured to rotate with the shaft, wherein an inner surface of the first wheel comprises a first wheel stop member and a first wheel detent; and a second wheel, wherein the second wheel comprises a tab, wherein the first wheel and the second wheel are rotatable in a first direction and a second direction to cause the probe to transition between a first configuration in which the probe is in a fully retracted position and a second configuration in which the probe is in a fully advanced position; and wherein, in response to the probe delivery device being disposed in the first configuration, the first wheel and the second wheel are prevented from rotating in the first direction but are configured to rotate in the second direction opposite the first direction, wherein the first wheel is configured to rotate more than one full revolution in the second direction. In response to the probe delivery device being disposed in the first configuration, a gap is disposed between the housing stop member and the first wheel stop member, and the tab bridges the gap between the housing stop member and the first wheel stop member. In response to the probe delivery device being disposed in the first configuration, the tab is disposed between the housing stop member and the first wheel stop member and contacts the housing stop member and the first wheel stop member, wherein, in response to the probe delivery device being disposed in the first configuration, the first wheel is configured to rotate in the second direction independently of the housing and the second wheel until the first wheel stop member contacts the tab. In response to the first wheel rotating in the second direction independently of the housing and the second wheel until the first wheel stop member contacts the tab, the first wheel and the second wheel are configured to further rotate together in the second direction until the probe delivery device is disposed in the second configuration, wherein in the second configuration the tab is disposed between the housing stop member and the first wheel stop member and contacts the housing stop member and the first wheel stop member. The first wheel is configured to rotate in the second direction to advance the probe in a distal direction through the distal end of the housing. The probe delivery device comprises: a housing comprising a distal end and a proximal end, wherein the distal end is configured to couple to an intravenous catheter device, wherein an inner surface of the housing comprises a housing stop member and a housing detent; a shaft; a first wheel configured to rotate with the shaft, wherein an inner surface of the first wheel comprises a first wheel stop member and a first wheel detent; and a second wheel, wherein the second wheel comprises a tab, wherein the first wheel and the second wheel are rotatable in a first direction and a second direction to cause the probe to transition between a first configuration in which the probe is in a fully retracted position and a second configuration in which the probe is in a fully advanced position; and wherein, in response to the probe delivery device being disposed in the first configuration, the first wheel and the second wheel are prevented from rotating in the first direction but are configured to rotate in the second direction opposite the first direction, wherein the first wheel is configured to rotate more than one full revolution in the second direction. a second wheel disposed on the shaft and configured to rotate with the shaft and move axially along the shaft, wherein the second wheel includes a tab, wherein in response to the probe delivery device being in a first configuration, the tab is disposed within the housing detent and the first wheel detent, and the first wheel is prevented from rotating in a first direction, but the first wheel is configured to rotate in a second direction opposite the first direction, wherein the first wheel is configured to rotate more than one full revolution in the second direction; wherein the first wheel is configured to rotate in the second direction to advance the probe in a distal direction through the distal end of the housing.

7. The probe delivery device of claim 6, wherein, in response to the first wheel rotating from the first configuration in the second direction, the tab is removed from the first wheel detent before the tab is removed from the housing detent, wherein in response to the tab sliding toward the inner surface of the first wheel, the tab is removed from the housing detent.

8. The probe delivery device of claim 6, wherein, the inner surface of the housing further includes another housing detent, wherein the inner surface of the first wheel further includes a first wheel ramped surface and another first wheel ramped surface, wherein the first wheel detent is disposed between the first wheel stop member and the first wheel ramped surface, and another first wheel detent is disposed between the first wheel stop member and the another first wheel ramped surface, wherein the first wheel ramped surface is ramped toward the first wheel detent, wherein the another first wheel ramped surface is ramped toward the another first wheel detent, wherein the first wheel is configured to rotate from the first configuration to a second configuration, wherein in the second configuration the tab is disposed within the another housing detent and the another first wheel detent, wherein to move from the first configuration to the second configuration, the tab contacts the housing stop member, wherein in response to the tab contacting the housing stop member and further rotation of the first wheel in the second direction, the tab moves along the another first wheel ramped surface and is pushed by the another first wheel ramped surface toward the inner surface of the housing and into the another housing detent.

9. The probe delivery device of claim 8, wherein, the inner surface of the housing further includes a housing ramped surface and another housing ramped surface, wherein the housing detent is disposed between the housing stop member and the housing ramped surface, wherein the another housing detent is disposed between the housing stop member and the another housing ramped surface and on an opposite side of the housing stop member from the housing detent.

10. The probe delivery device of claim 9, wherein, the housing ramped surface is ramped toward the housing detent, wherein the first wheel ramped surface is ramped toward the first wheel detent, wherein the housing ramped surface and the first wheel ramped surface are ramped in different directions.

11. The probe delivery device of claim 6, wherein, the housing detent is disposed opposite the first wheel detent in the first configuration.

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