Catheter assembly with angle change and related methods

Abstract

A catheter assembly includes: a catheter adapter including a distal end, a proximal end, and a lumen extending through the distal end and the proximal end; a catheter secured within the catheter adapter and extending from the distal end of the catheter adapter; and an expandable support coupled to the catheter adapter, wherein the expandable support is configured to adjust the angle of the catheter adapter relative to a patient's skin, which can improve the patency of the catheter assembly and the alignment of the fluid path of the catheter assembly with the patient's vascular system.

Description

Technical Field

[0001] This disclosure relates to a catheter assembly and related methods. Background Technology

[0002] Catheters are commonly used to deliver 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 venous (“IV”) catheter. In this case, the catheter may be mounted on a guide needle with a sharp distal end. 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 guide needle facing upwards and 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 shallow angle.

[0004] To verify proper placement of the guide needle and / or catheter in the blood vessel, clinicians typically confirm the presence of a "flashback" of blood in the flashback lumen of the catheter assembly. 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] Blood collection using catheters can be difficult for several reasons, especially when the catheter remains in the vascular system for more than a day. When a catheter is inserted into a patient for an extended period, the catheter or vein may become more prone to narrowing, collapse, twisting, blockage by debris (e.g., fibrin or platelet clots), and the catheter tip may adhere to the vascular system. Therefore, the catheter may sacrifice infusion, blood collection, or aspiration over time. Catheters are typically used to collect blood samples at the time of catheter placement, but rarely during catheter indwelling. Therefore, when blood samples are needed, an additional needle prick is usually used to provide venous access for blood collection, which can be painful for the patient and results in higher material costs.

[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 exemplary technical field in which some of the implementations described herein can be practiced. Summary of the Invention

[0007] This disclosure generally relates to vascular access systems and related apparatus and methods. In some embodiments, the catheter assembly may be configured to provide catheter angle changes, which may reduce the likelihood of catheter occlusion, improve patency, and facilitate alignment of the catheter assembly's fluid path with the patient's vascular system.

[0008] In some embodiments, the catheter assembly may include a catheter adapter, which may include a distal end, a proximal end, and a lumen extending through the distal end and the proximal end of the catheter adapter. In some embodiments, the catheter assembly may include a catheter fixed within the catheter adapter and extending from the distal end of the catheter adapter.

[0009] In some embodiments, the catheter assembly may include an expandable support coupled to the catheter adapter. In some embodiments, the expandable support may be configured to adjust the angle of the catheter adapter relative to the patient's skin. In some embodiments, the expandable support may be configured to move from a constricted position to an expanded position in response to the infusion of liquid or air into the expandable support. In some embodiments, in response to the expandable support moving from the constricted position to the expanded position, the angle of the catheter adapter relative to the insertion surface may be configured to increase.

[0010] In some embodiments, the expandable support may include a telescopic member. In some embodiments, the expandable support may be configured to move from a retracted position to an expanded position in response to the extension of the telescopic member. In some embodiments, the angle of the conduit adapter relative to the insertion surface may be configured to increase in response to the expandable support moving from the retracted position to the expanded position.

[0011] In some embodiments, the protrusion may be coupled to a catheter adapter. In some embodiments, the protrusion may be configured to rotate. In some embodiments, in response to the protrusion rotating from a first position to a second position, the angle of the catheter adapter relative to the insertion surface may be configured to increase. In some embodiments, in response to the protrusion rotating from the first position to the second position, the catheter adapter rotates together with the protrusion.

[0012] In some embodiments, the catheter assembly may include a platform. In some embodiments, in response to the protrusion being in a first position, the catheter adapter may rest on the platform. In some embodiments, in response to the protrusion rotating to a second position, the protrusion may rest on the platform, and the catheter adapter may be spaced apart from the platform. In these and other embodiments, the catheter adapter and the protrusion may be integrally formed as a single unit.

[0013] In some embodiments, the catheter assembly may include a strap disposed on the catheter adapter and the protrusion. In some embodiments, a first end and a second end of the strap may be coupled to the platform. In some embodiments, at least a portion of the strap may be elastic. In some embodiments, the catheter assembly may include another strap disposed on the catheter adapter and the protrusion. In some embodiments, a first end and a second end of the other strap may be coupled to the platform. In some embodiments, at least a portion of the other strap may be elastic. In some embodiments, the catheter adapter may include a side port disposed between a distal end and a proximal end of the catheter adapter. In some embodiments, the side port may be disposed between the strap and the other strap.

[0014] In some embodiments, the catheter assembly may include a collar that rotates relative to the catheter adapter. In some embodiments, the collar may include the protrusion. In some embodiments, the collar may be asymmetrical.

[0015] In some embodiments, the catheter adapter may be configured to move between a specific first position and a specific second position. In some embodiments, in response to the catheter adapter moving from the specific first position to the specific second position, the angle of the catheter adapter relative to the insertion surface may be configured to increase.

[0016] In some embodiments, the catheter assembly may include a platform pivotally coupled to a catheter adapter. In some embodiments, the catheter adapter may be configured to pivot between a specific first position and a specific second position, or between any number of positions between the first and second positions. In some embodiments, in response to the catheter adapter pivoting from a specific first position to a specific second position, the angle of the catheter adapter relative to the insertion surface is configured to increase.

[0017] In some embodiments, the catheter assembly may include a platform coupled to a catheter adapter. In some embodiments, the platform may include a first flat surface and a second flat surface adjacent to the first flat surface. In some embodiments, the first flat surface may be angled relative to the second flat surface. In some embodiments, the catheter adapter is configured to swing between a specific first position and a specific second position. In some embodiments, in response to the catheter adapter swinging from the specific first position to the specific second position, the angle of the catheter adapter relative to the insertion surface is configured to increase.

[0018] In some embodiments, the catheter adapter may include a slot. In some embodiments, the catheter assembly may include a slider extending through the slot and configured to move between a proximal position and a distal position. In some embodiments, in response to the slider moving from the proximal position to the distal position, the slider may be pushed on the distal end of the catheter adapter to increase the angle of the catheter adapter relative to the insertion surface.

[0019] In some embodiments, the conduit adapter may include a wing and a wall extending substantially perpendicular to the wing. In some embodiments, the slot is disposed within the wall. In some embodiments, the slider may be arcuate. In some embodiments, the slider may include a push tab.

[0020] In some embodiments, the catheter assembly may include a catheter adjuster, which may include a distal end, a proximal end, and a catheter extending through the catheter adjuster. In some embodiments, the catheter adjuster may be coupled to the distal end of the catheter adapter at a ball joint or hinge. In some embodiments, in response to the catheter adjuster moving from another specific first position to another specific second position via the ball joint or hinge, the angle of the catheter relative to the insertion surface may be configured to increase. In some embodiments, the catheter assembly may include a collar disposed around the distal end of the catheter adapter. In some embodiments, the collar may be configured to lock the ball joint in the other specific first position or the other specific second position, or in any number of positions between the other specific first position and the other specific second position.

[0021] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory, and are not intended to limit the claimed invention. It should be understood that the various embodiments are not limited to the configurations and means shown in the drawings. It should also be understood that these embodiments may be combined, other embodiments may be utilized, and structural changes may be made without departing from the scope of the various embodiments of the invention, unless so claimed. Therefore, the following detailed description should not be considered limiting. Attached Figure Description

[0022] The exemplary embodiments will be described and illustrated with additional features and details using the accompanying drawings, wherein:

[0023] Figure 1A This is a top perspective view of an exemplary catheter assembly according to some embodiments, showing an exemplary expandable support in an exemplary constricted position;

[0024] Figure 1B According to some embodiments Figure 1AThe top perspective view of the conduit assembly shows the expandable support in an exemplary expanded position;

[0025] Figure 1C According to some embodiments Figure 1A The top perspective view of the conduit assembly shows an exemplary spring-loaded locking mechanism and an expandable support in the expanded position;

[0026] Figure 1D According to some embodiments Figure 1A The top perspective view of the conduit assembly shows the spring-loaded locking mechanism and the expandable support in the retracted position;

[0027] Figure 1E According to some embodiments Figure 1A The top perspective view of the conduit assembly shows an exemplary accordion-style component and expandable support in the retracted position;

[0028] Figure 1F According to some embodiments Figure 1A The top perspective view of the conduit assembly shows an exemplary accordion-style component and expandable support in the expanded position;

[0029] Figure 1G According to some embodiments Figure 1A The top perspective view of the conduit assembly shows an exemplary threaded extension and expandable support in the retracted position;

[0030] Figure 1H According to some embodiments Figure 1A The top perspective view of the conduit assembly shows the threaded extension and expandable support in the expanded position;

[0031] Figure 1I According to some embodiments Figure 1A The top perspective view of the conduit assembly shows an exemplary hinge and expandable support in the retracted position;

[0032] Figure 1J According to some embodiments Figure 1A The top perspective view of the conduit assembly shows the hinge and expandable support in the expanded position;

[0033] Figure 1K According to some embodiments Figure 1A The top perspective view of the conduit assembly shows an exemplary multi-hinged expander and expandable support in the constricted position;

[0034] Figure 1L According to some embodiments Figure 1AThe top perspective view of the catheter assembly shows the multi-hinged expander and expandable support in the expanded position;

[0035] Figure 1M This is a top perspective view of another conduit assembly according to some embodiments, showing an exemplary expandable bag and an exemplary compressible bag;

[0036] Figure 1N According to some embodiments Figure 1M A top perspective view of the conduit assembly, showing a compressible bag filled with liquid or gas;

[0037] Figure 10 According to some embodiments Figure 1M A top perspective view of the conduit assembly, showing an expandable bag filled with liquid or gas;

[0038] Figure 1P This is a top perspective view of another catheter assembly according to some embodiments, showing an exemplary expandable bag;

[0039] Figure 1Q According to some embodiments Figure 1P Top perspective view of the conduit assembly, showing the expandable bag before it is filled with liquid or gas;

[0040] Figure 1R According to some embodiments Figure 1P A top perspective view of the conduit assembly, showing an expandable bag filled with liquid or gas;

[0041] Figure 2A This is a top perspective view of another catheter assembly according to some embodiments, showing the catheter assembly and exemplary protrusion in an exemplary first position;

[0042] Figure 2B According to some embodiments Figure 2A A side view of the catheter assembly, showing the catheter assembly in a first position;

[0043] Figure 2C According to some embodiments Figure 2A A side view of the catheter assembly, showing the catheter assembly in an exemplary second position;

[0044] Figure 3A According to some embodiments Figure 2A A proximal end view of the catheter assembly, showing the catheter assembly in a first position;

[0045] Figure 3B According to some embodiments Figure 2A A proximal end view of the catheter assembly, showing the catheter assembly in the second position;

[0046] Figure 4A According to some embodiments Figure 2A A top perspective view of the catheter assembly, showing an exemplary collar;

[0047] Figure 4B According to some embodiments Figure 2A A side view of the catheter assembly, showing a collar in an exemplary first position;

[0048] Figure 4C According to some embodiments Figure 2A A proximal end view of the catheter assembly, showing the collar in the first position;

[0049] Figure 4D According to some embodiments Figure 2A A cross-sectional view of the catheter assembly, showing the collar in the first position;

[0050] Figure 4E According to some embodiments Figure 2A A side view of the catheter assembly, showing a collar in an exemplary second position;

[0051] Figure 4F According to some embodiments Figure 2A A proximal end view of the catheter assembly, showing the collar in the second position;

[0052] Figure 5A According to some embodiments Figure 2A A proximal end view of the catheter assembly, showing another exemplary collar in an exemplary first position;

[0053] Figure 5B According to some embodiments Figure 2A A proximal end view of the catheter assembly, showing another exemplary collar in an exemplary second position;

[0054] Figure 6A According to some embodiments Figure 2A A proximal end view of the catheter assembly, showing another exemplary collar in an exemplary first position;

[0055] Figure 6B According to some embodiments Figure 2A A proximal end view of the catheter assembly, showing it in an exemplary second position. Figure 6A Another set of rings;

[0056] Figure 7A This is a top perspective view of another conduit assembly according to some embodiments;

[0057] Figure 7BAccording to some embodiments Figure 7A A side view of the catheter assembly, showing the catheter assembly in an exemplary first position;

[0058] Figure 7C According to some embodiments Figure 7A A side view of the catheter assembly, showing the catheter assembly in an exemplary second position;

[0059] Figure 8A This is a top perspective view of another conduit assembly according to some embodiments;

[0060] Figure 8B According to some embodiments Figure 8A A side view of the catheter assembly, showing the catheter assembly in an exemplary first position;

[0061] Figure 8C According to some embodiments Figure 8A A side view of the catheter assembly, showing the catheter assembly in an exemplary second position;

[0062] Figure 9A This is a cross-sectional view of another example catheter assembly according to some embodiments, showing an example catheter adjuster in an exemplary first position;

[0063] Figure 9B According to some embodiments Figure 9A A cross-sectional view of the catheter assembly, showing the catheter adjuster in an exemplary second position;

[0064] Figure 9C According to some embodiments Figure 9A A cross-sectional view of the catheter assembly, showing the catheter adjuster in the locked position;

[0065] Figure 9D According to some embodiments Figure 9A A side view of the catheter assembly, showing an exemplary platform that can be pivotally coupled to a catheter adapter;

[0066] Figure 10A This is a side view of another conduit assembly according to some embodiments, showing an exemplary slider in an exemplary distal position; and

[0067] Figure 10B According to some embodiments Figure 10A A side view of the catheter assembly, showing the slider in an exemplary proximal position. Detailed Implementation

[0068] Now refer to Figure 1A-1LIn some embodiments, the catheter assembly 10 may be configured to provide angular variation of the catheter 12, which may reduce the likelihood of catheter 12 blockage, improve patency, and facilitate alignment of the fluid path of the catheter assembly 10 with the patient's vascular system. In some embodiments, the catheter assembly 10 may also allow radial, distal, and / or proximal movement of the catheter 12 within the vascular system, which may also reduce the likelihood of blockage and improve patency. In some embodiments, the angular variation provided by the catheter assembly 10 may facilitate blood aspiration, fluid delivery, patient or device monitoring, or other clinical needs.

[0069] In some embodiments, the catheter assembly 10 may include a catheter adapter 14, which may include a distal end 16, a proximal end 18, and a lumen extending through the distal end 16 and the proximal end 18. In some embodiments, the catheter assembly 10 may include a catheter 12 fixed within the catheter adapter 14 and extending from the distal end 16 of the catheter adapter 14.

[0070] In some embodiments, the catheter assembly 10 may include an expandable support 20 coupled to the catheter adapter 14. In some embodiments, the expandable support 20 may be configured to adjust the angle of the catheter adapter 14 relative to the patient's skin.

[0071] In some embodiments, the expandable support 20 may include, for example... Figure 1A-1B The telescopic member 22 shown, or other suitable mechanical means for changing the height of the proximal end 18 of the conduit adapter 14. In some embodiments, the expandable support 20 may be configured to extend from, for example, the telescopic member 22 in response to the extension of the telescopic member 22. Figure 1A The contraction position shown is moved to, for example... Figure 1B The expansion position is shown. In some embodiments, the telescopic member 22 may be configured to lock in a specific position.

[0072] In some embodiments, in response to the expandable support 20 moving from a retracted position to an expanded position, the angle 24 of the catheter adapter 14 relative to the insertion surface 26 can be configured to increase. In some embodiments, the angle 24 can be measured between the central axis of the catheter adapter and the insertion surface 26. In these embodiments, the proximal end 18 of the catheter adapter 14 can be raised, which can change the position of the catheter 12. In some embodiments, such as Figure 1A-1B As shown, the insertion surface 26 may include the patient's skin.

[0073] In some embodiments, a tab 28 may be attached to the telescopic member 22. In some embodiments, a user may grasp the tab 28 and move the expandable support 20 from a retracted position to an expanded position. In some embodiments, the expandable support 20 may be configured to move from a retracted position to an expanded position in response to the infusion of liquid or air into the expandable support 20.

[0074] like Figure 1C-1D As shown, in some embodiments, the telescopic member 22 may be coupled to a spring-loaded locking mechanism. In some embodiments, the spring-loaded locking mechanism may include a spring coupled to the button and the telescopic member 22. In some embodiments, in response to raising or extending the telescopic member 22, the button may extend through a hole in the telescopic member 22 to secure the telescopic member in the extended position.

[0075] like Figure 1E-1F As shown, the expandable support 20 may include another suitable mechanical device, such as an accordion-style extension 29, for changing the height of the proximal end 18 of the conduit adapter 14. In some embodiments, the expandable support 20 may be configured to expand in response to the expansion of the accordion-style extension 29, for example... Figure 1E The contraction position shown is moved to, for example... Figure 1F The extended position is shown. In some embodiments, in response to the accordion extension 29 being in the extended position, the accordion extension 29 may be configured to remain in the extended position until additional force is applied from the user. In some embodiments, the accordion extension 29 may be made of plastic or other suitable materials.

[0076] like Figure 1G-1H As shown, the expandable support 20 may include another suitable mechanical device, such as a threaded extension 31, for changing the height of the proximal end 18 of the conduit adapter 14. In some embodiments, the threaded extension 31 may be configured to loosen in response to the upper portion 33 of the threaded extension 31 relative to the lower portion 35 of the threaded extension 29, for example... Figure 1G The contraction position shown is moved to, for example... Figure 1H The expansion position is shown. In some embodiments, the upper portion 33 may include external threads, and the lower portion 35 may include internal threads. In some embodiments, the conduit adapter 14 may be rotatable relative to the upper portion 33.

[0077] like Figure 1I-1J As shown, the expandable support 20 may include another suitable mechanical device, such as a hinge 39, for changing the height of the proximal end 18 of the conduit adapter 14. In some embodiments, the expandable support 20 may be configured to expand in response to the expansion of the hinge 39, for example... Figure 1I The contraction position shown is moved to, for example... Figure 1JThe expansion position is shown. In some embodiments, a spring may extend between the ends of the hinge 39 to provide support.

[0078] like Figure 1K-1L As shown, the expandable support 20 may include another suitable mechanical device, such as a multi-hinged expander 41, for changing the height of the proximal end 18 of the conduit adapter 14. In some embodiments, the expandable support 20 may be configured to move from, for example, the opposite hinges of the multi-hinged expander 41 closer to each other in response to the movement of these hinges closer together. Figure 1K The contraction position shown is moved to, for example... Figure 1L The expansion position is shown. In some embodiments, the multi-hinged expander 41 may include opposing hinges and another pair of opposing hinges, and may be formed in a diamond shape.

[0079] Now refer to Figure 1M-1O In some embodiments, the catheter assembly 10 may include an expandable pouch 45 and / or one or more compressible pouches 43 to provide angular variation of the catheter 12 and / or positioning of the catheter 12 within the vascular system. In some embodiments, the compressible pouch 43 may be filled with liquid or gas and connected to the expandable pouch via a channel 47. In some embodiments, in response to compression of the compressible pouch 43, liquid or gas may flow from the compressible pouch 43 through the channel 47 into the expandable pouch 45, which may expand to change the angle of the catheter 12. In some embodiments, the expandable pouch 45 may be disposed below the catheter adapter and / or coupled to the catheter adapter 14 or a platform located below the catheter adapter 14. In some embodiments, the expandable pouch 45 may be centrally positioned between the patient's skin and the catheter adapter 14. In some embodiments, the compressible pouch 43 may be disposed within one or more wings 51 extending outward from the catheter adapter 14. In some embodiments, specific compressible pouches 43 may be present within each wing 51 on opposite sides of the catheter adapter 14 for balance.

[0080] In some embodiments, in response to the desire to reduce the kinking of the catheter 12 to reduce infusion or blood draw, or in the presence of a blockage, the user may press the wing 51 and compress the compressible bag 43 to inflate the expandable bag 45 and elevate the catheter adapter 14.

[0081] Now refer to Figure 1P-1RIn some embodiments, the expandable bag 45 may be in fluid communication with the infusion port 53 of the catheter adapter 14. In some embodiments, the expandable bag 45 may be filled in response to the inflow of fluid or gas through the infusion port 53. In some embodiments, the fluid may include saline, and / or may be infused into the expandable bag 45 via a saline flushing syringe coupled to an extension kit extending from the infusion port 53. Referring now to Figure 2A-2C The image illustrates a catheter assembly 30 according to some embodiments. In some embodiments, catheter assembly 30 may be similar to or identical to catheter assembly 10 in one or more of the included features and / or operations. In some embodiments, a protrusion 32 may be coupled to a catheter adapter 14. In some embodiments, protrusion 32 may include an elongated rib. In these and other embodiments, protrusion 32 may include a flat or planar surface (e.g., Figure 2A and 2C As shown in the diagram, this surface allows the protrusion to rest stably against the insertion surface 26. In some embodiments, the protrusion 32 may extend along all or part of the conduit adapter 14.

[0082] In some embodiments, the protrusion 32 may be configured to rotate. In some embodiments, in response to the protrusion 32 rotating from a first position to a second position, the angle 24 of the catheter adapter 14 relative to the insertion surface 26 may be configured to increase. In some embodiments, in response to the protrusion 32 rotating from the first position to the second position, the catheter adapter 14 may rotate together with the protrusion 32. In these and other embodiments, the protrusion 32 may be fixedly attached to the catheter adapter 14, or the catheter adapter 14 and the protrusion 32 may be integrally formed as a single unit.

[0083] In some embodiments, the catheter assembly 30 may include a platform 34. In some embodiments, in response to the protrusion 32 being in, for example Figure 2A-2B In the first position shown, the catheter adapter 14 can be placed on the platform 34. In some embodiments, in response to the protrusion 32 rotating to, for example Figure 2B In the second position shown, the protrusion 32 can rest on the platform 34, and the conduit adapter 14 can be spaced apart from the platform 34. In some embodiments, the platform 34 may include a retaining wing. In some embodiments, the platform 34 may rest on the insertion surface 26.

[0084] In some embodiments, the catheter assembly 30 may include one or more straps 36 disposed on the catheter adapter 14 and the protrusion 32. In some embodiments, at least a portion of the strap 36 is elastic, which may facilitate the lifting of the proximal end 18 of the catheter adapter 14. In some embodiments, the strap 36 may include an elastomeric portion 37. In some embodiments, the upper portion of the strap 36 may be elastic, while the lower portion of the strap 36 may be made of a more rigid material to provide support for the catheter adapter 14.

[0085] In some embodiments, the catheter adapter 14 may include a side port 38 disposed between the distal end 16 and the proximal end 18 of the catheter adapter 14. In some embodiments, an extension tube may extend from the side port 38 and may be used for infusion into and / or blood collection from a vascular system. In some embodiments, the side port 38 may be disposed between two bands in the band 36.

[0086] Now refer to Figures 3A-3B The image shows a catheter assembly 30 according to some embodiments. In some embodiments, the protrusion 32 may be rounded, for example... Figures 3A-3B As shown. In some embodiments, the first end 40 and the second end 42 of one or more of the straps 36 may be coupled to the platform 34. In some embodiments, in response to the protrusion 32 from, for example Figure 3A The first position shown is rotated to, for example Figure 3B In the second position shown, the angle 24 of the catheter adapter 14 relative to the insertion surface 26 can be configured to be increased. In these embodiments, the proximal end 18 of the catheter adapter 14 can be raised, which can change the position of the catheter 12 and can improve patency and / or the alignment of the fluid path of the catheter assembly 10 with the vascular system.

[0087] Now refer to Figures 4A-4F The image illustrates a catheter assembly 30 according to some embodiments. In some embodiments, the catheter assembly 30 may include a collar 44 that rotates relative to a catheter adapter 14. In some embodiments, the collar 44 may be threaded onto the catheter adapter 14, which may provide a fixed position for the catheter adapter 14. In some embodiments, the collar 44 may engage with the catheter adapter 14 in a sliding fit, or be coupled to the catheter adapter 14 via other suitable means. In some embodiments, the collar 44 may include a protrusion 32. In some embodiments, the collar 44 may be asymmetrical. In some embodiments, the catheter adapter 14 may include one or more wings that may be raised or lowered together with the catheter adapter 14.

[0088] In some embodiments, in response to the protrusion 32 from, for example Figures 4A-4DThe first position shown is rotated to, for example Figure 4E-4F In the second position shown, the angle 24 of the catheter adapter 14 relative to the insertion surface 26 can be configured to be increased. In these embodiments, the proximal end 18 of the catheter adapter 14 can be raised, which can change the position of the catheter 12 and improve patency and / or the alignment of the fluid path of the catheter assembly 30 with the vascular system. Figure 4D The lumen 46 of the catheter adapter 14 is shown, which may include a diaphragm 48 to prevent blood leakage through the proximal end 18.

[0089] Now refer to Figures 5A-5B The image illustrates a catheter assembly 30 according to some embodiments. In some embodiments, the collar 44 may include various shapes, such as a smooth curve 49 adjacent to a radial surface 50, which may be substantially perpendicular to the smooth curve 49 and facilitate rotation by the user. In some embodiments, the collar 84 may completely surround the catheter adapter 14. In some embodiments, in response to the protrusion 32 from, for example Figure 5A The first position shown is rotated to, for example Figure 5B The second position shown is the angle of the conduit adapter 14 relative to the insertion surface 26 (e.g., see...). Figure 1A-1B and Figure 2B-2C Angle 24) can be configured to increase.

[0090] Now refer to Figures 6A-6B The image illustrates a catheter assembly 30 according to some embodiments. In some embodiments, the collar 44 may include various shapes, such as a smooth curve 52 adjacent to the tab 54, to facilitate gripping and rotation by a user. In some embodiments, in response to the protrusion 32 from, for example... Figure 5A The first position shown is rotated to, for example Figure 5B In the second position shown, the angle of the conduit adapter 14 relative to the insertion surface 26 can be configured to be increased.

[0091] Now refer to Figures 7A-7C The image shows a catheter assembly 56 according to some embodiments. In some embodiments, catheter assembly 56 may be similar to or the same as catheter assembly 10 and / or catheter assembly 30 in one or more of the included features and / or operations.

[0092] In some embodiments, the catheter assembly 56 may include a platform 58 pivotally coupled to the catheter adapter 14. In some embodiments, the catheter adapter 14 may be configured to, for example... Figures 7A-7B The first position shown and, for example Figure 7CPivoting between the second positions shown. In some embodiments, in response to pivoting from the first position to the second position, the angle of the catheter adapter 14 relative to the insertion surface is configured to increase, and the proximal end 18 of the catheter adapter 14 can be raised. In some embodiments, the first shaft 60a and the second shaft 60b may extend from opposite sides of the catheter adapter 14 and may be configured to rotate within recesses 62a, 62b, respectively, to move the catheter adapter 14 between the first and second positions. In some embodiments, the recesses 62a, 62b may be disposed within a wall 64 extending upward from the platform 58.

[0093] Now refer to Figures 8A-8C The image shows a catheter assembly 66 according to some embodiments. In some embodiments, catheter assembly 66 may be similar to or the same as one or more of the following in terms of one or more of the included features and / or operations: catheter assembly 10, catheter assembly 30, and catheter assembly 56.

[0094] In some embodiments, the catheter assembly 66 may include a platform 68 coupled to the catheter adapter 14. In some embodiments, the platform 68 may include a first flat surface 70 and a second flat surface 72 adjacent to the first flat surface 70. In some embodiments, the first flat surface 70 may be angled relative to the second flat surface 72. In some embodiments, the catheter adapter 14 may be configured to, for example... Figures 8A-8B The first position shown is to, for example Figure 8C The second position is shown to swing between two positions. In some embodiments, in the first position, the first flat surface 70 may contact the insertion surface 26, and the second flat surface 72 may be spaced apart from the insertion surface 26. In some embodiments, in the second position, the second flat surface 72 may contact the insertion surface 26, and the first flat surface 70 may be spaced apart from the insertion surface 26.

[0095] In some embodiments, in response to a user swinging the catheter adapter 14 from a first position to a second position, the angle 24 of the catheter adapter 14 relative to the insertion surface can be configured to increase, and the proximal end 18 of the catheter adapter 14 is raised, thereby changing the position of the catheter 12 and improving patency and alignment.

[0096] Now refer to Figures 9A-9C The image shows a catheter assembly 74 according to some embodiments. In some embodiments, catheter assembly 74 may be similar to or the same as one or more of the following in terms of one or more of the included features and / or operations: catheter assembly 10, catheter assembly 30, catheter assembly 56, and catheter assembly 66.

[0097] In some embodiments, the catheter assembly 74 may include a catheter adjuster 76, which may include a distal end 78, a proximal end 80, and a catheter 12 extending through the catheter adjuster. In some embodiments, the catheter adjuster 76 may be coupled to the distal end 16 of the catheter adapter 14 at a ball joint 82, a hinge, or other suitable mechanism.

[0098] For example Figures 9A-9C As shown, the distal end 16 of the catheter adapter 14 may include a socket, and the proximal end 80 of the catheter adjuster 76 may include a ball or rounded portion configured to rotate within the socket. Alternatively, in some embodiments, the distal end 16 of the catheter adapter 14 may include a ball or rounded portion, and the proximal end 80 of the catheter adjuster 76 may include a socket.

[0099] In some embodiments, the catheter adjuster 76 can be accessed via a ball joint 82 or a hinge, for example... Figure 9A The first position shown is moved to, for example Figure 9B The second position is shown. In some embodiments, in response to the catheter adjuster 76 moving from the first position to the second position, the angle of the catheter 12 relative to the insertion surface 26 can be configured to increase.

[0100] For example Figure 9C As shown, the catheter assembly 74 may include a collar 84 disposed around the distal end 16 of the catheter adapter 14. In some embodiments, the collar 84 may be configured to lock the ball joint 82 in a first position or a second position. In some embodiments, the collar 84 may include threads corresponding to additional threads on the outer surface of the distal end 16 of the catheter adapter 14. In some embodiments, the collar 84 may partially or completely surround the catheter adapter 14.

[0101] Now refer to Figure 9D In some embodiments, the catheter assembly 74 may include a platform 58 that may be pivotally coupled to a catheter adjuster 76 through which the catheter 12 extends. In some embodiments, the platform 58 may include a protrusion 59 on which the catheter adapter 14 may rest.

[0102] In some embodiments, the catheter adjuster 76 may be configured to pivot between a first position and a second position via a hinge. In some embodiments, in response to the catheter adjuster 76 pivoting from the first position to the second position, the catheter 12 may bend, and the angle of the distal end of the catheter 12 relative to the insertion surface is configured to increase. In some embodiments, the proximal end 18 of the catheter adapter 14 may remain on the protrusion 59 or platform 58 in response to the catheter adjuster 76 pivoting from the first position to the second position. In some embodiments, a first shaft 60A and a second shaft 60b may be fixed to the catheter adjuster 76. In some embodiments, the first shaft 60A and the second shaft 60b may extend from opposite sides of the catheter adapter 14 and may be configured to rotate within recesses 62A, 62b, respectively (e.g., see...). Figure 7A This allows the catheter adjuster 76 and the catheter 12 to move between a first position and a second position. In some embodiments, grooves 62a, 62b may be provided within a wall 64 extending upward from the platform 58.

[0103] Now refer to Figures 10A-10B The image shows a catheter assembly 86 according to some embodiments. In some embodiments, catheter assembly 86 may be similar to or the same as one or more of the following in terms of one or more of the included features and / or operations: catheter assembly 10, catheter assembly 30, catheter assembly 56, catheter assembly 66, and catheter assembly 74.

[0104] In some embodiments, the catheter adapter 14 may include a slot 88. In some embodiments, the catheter assembly 86 may include a slider 90 extending through the slot 88 and configured to, for example, within the slot 88... Figure 10B The proximal position shown and, for example Figure 10A The movement is between the distal positions shown. In some embodiments, in response to the slider 90 moving from the proximal position to the distal position, the slider may be pushed on the distal end 16 of the catheter adapter 14 to increase the angle of the catheter adapter 14 relative to the insertion surface 26.

[0105] In some embodiments, the catheter adapter 14 may include a wing 92 and a wall 94 extending substantially perpendicular to the wing 92. In some embodiments, a slot 88 is disposed within the wall 94. In some embodiments, the slider 90 may be arcuate. In some embodiments, the slider 90 may include a protrusion or push tab 96 disposed on top of the slider 90 and configured to be grasped by a user. In some embodiments, the catheter adapter 14 may not include the slider 90, wall 94, and slot 88, which may be incorporated into a stabilizing device or dressing coupled to or near the catheter adapter 14.

[0106] All examples and conditional language described herein are intended for pedagogical purposes to aid the reader's understanding of the invention and the inventors' concepts for advancement in the field, and should be interpreted as not being limited to such specific 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 catheter assembly comprising: a catheter adapter comprising a distal end, a proximal end, and a lumen extending through the distal end and the proximal end; a catheter secured within the catheter adapter and extending from the distal end of the catheter adapter; and an expandable support coupled to the catheter adapter, wherein the expandable support has an adjustable height configured to adjust an angle of the catheter adapter relative to a patient's skin, wherein the expandable support is configured to move from a collapsed position to an expanded position in response to a liquid or air infusion into the expandable support such that the adjustable height of the expandable support increases.

2. A catheter assembly comprising: a catheter adapter comprising a distal end, a proximal end, and a lumen extending through the distal end and the proximal end; a catheter secured within the catheter adapter and extending from the distal end of the catheter adapter; and a protrusion coupled to the catheter adapter, wherein the protrusion is configured to rotate about a longitudinal center axis of the catheter adapter, wherein an angle of the catheter adapter relative to an insertion surface is configured to increase in response to the protrusion rotating from a first position to a second position. the catheter adapter rotates with the protrusion in response to the protrusion rotating from the first position to the second position. the catheter assembly further comprises a platform, wherein the catheter adapter rests on the platform in response to the protrusion being in the first position, wherein the protrusion rests on the platform and the catheter adapter is spaced apart from the platform in response to the protrusion being rotated to the second position.

3. The catheter assembly of claim 2, wherein, the catheter adapter and the protrusion are integrally formed as a single unit.

4. The catheter assembly of claim 3, wherein, the catheter assembly further comprises a strap disposed on the catheter adapter and the protrusion, wherein first and second ends of the strap are coupled to the platform, wherein at least a portion of the strap is elastic.

5. The catheter assembly of claim 4, wherein, the catheter assembly further comprises another strap disposed on the catheter adapter and the protrusion, wherein first and second ends of the other strap are coupled to the platform, wherein at least a portion of the other strap is elastic.

6. The catheter assembly of claim 4, wherein, the catheter adapter further comprises a side port disposed between the distal end of the catheter adapter and the proximal end of the catheter adapter, wherein the side port is disposed between the strap and the other strap.

7. The catheter assembly of claim 6, wherein, the catheter assembly further comprises a collar that rotates relative to the catheter adapter, wherein the collar comprises the protrusion, wherein the collar is non-symmetrical.

8. The catheter assembly of claim 7, wherein, 10. A catheter assembly comprising:

9. The catheter assembly of claim 2, wherein, a catheter adapter comprising a distal end, a proximal end, and a lumen extending through the distal end and the proximal end; a catheter secured within the catheter adapter and extending from the distal end of the catheter adapter; and a protrusion coupled to the catheter adapter, wherein the protrusion is configured to rotate about a longitudinal center axis of the catheter adapter, wherein an angle of the catheter adapter relative to an insertion surface is configured to increase in response to the protrusion rotating from a first position to a second position. ​ ​ a platform coupled to the catheter adapter, wherein the platform includes a first planar surface and a second planar surface proximate to the first planar surface, wherein the first planar surface is angled relative to the second planar surface, wherein the first planar surface and the second planar surface are configured to contact a patient's skin, wherein the catheter adapter is configured to swing in a direction along a longitudinal center axis of the catheter adapter between a first position to a second position, wherein in response to the catheter adapter being swung from the first position to the second position, an angle of the catheter adapter relative to an insertion surface is configured to increase.

11. A catheter assembly comprising: a catheter adapter including a concave distal end, a proximal end, and a lumen extending through the distal end and the proximal end; a catheter secured within the catheter adapter and extending from the distal end of the catheter adapter; and a catheter adjuster including a distal end and a convex proximal end, wherein the proximal end of the catheter adjuster is coupled to the distal end of the catheter adapter to form a ball joint, wherein the catheter extends through the catheter adjuster and the ball joint, wherein in response to the catheter adjuster being moved from a first position to a second position via the ball joint, an angle of the catheter relative to an insertion surface is configured to increase. the catheter assembly further includes a collar disposed about the distal end of the catheter adapter, wherein the collar is configured to lock the ball joint in the first position or the second position.

12. The catheter assembly of claim 11, wherein, ​

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