Fixture for catheter assemblies, kits and methods of use

Abstract

A fixture for a catheter assembly includes a base assembly having a catheter hub and a cannula configured for insertion into the skin of a patient at an insertion site. The base assembly includes a base mount and a slider track that includes a first coupling feature. The first coupling feature includes a first arcuate shape. The fixture also includes a hub assembly including a hub slide. A second coupling feature of the hub slide includes a second arcuate shape similar to the first arcuate shape. The second coupling feature is at least partially and slidably engaged with the first coupling feature such that the hub slide is slidable relative to the base assembly along the slide track. The hub assembly also includes a hub base. In addition, the hub assembly is slidably movable along the slider track relative to the base assembly to a desired position.

Description

Technical Field

[0001] The present disclosure relates to a fixation device for a catheter assembly, a kit including the fixation device, and a method of using the fixation device. Background Art

[0002] Catheter assemblies can be used for various purposes such as feeding, air supply, and / or fluid removal. In some cases, catheter assemblies can be used to administer medications and fluids to a patient. Such catheter assemblies typically include an intubation tube that is inserted into a patient's skin at an insertion site. It may be necessary to fix the catheter assembly to the patient's skin to prevent movement of the catheter assembly. For example, the catheter assembly can be fixed to the patient's skin to prevent the catheter assembly from being pulled out, otherwise the catheter assembly may move in a manner that can adversely affect the function of the catheter assembly.

[0003] Conventional fixation units (such as tapes, patches, and sutures) are typically used to fix the catheter assembly to the patient's skin. However, conventional fixation units may not be able to properly fix the catheter assembly to the skin. Specifically, such fixation units may not be able to sufficiently stabilize the catheter assembly, which may result in undesirable movement of the catheter assembly during use. In some cases, conventional fixation units may cause various complications such as the catheter assembly being dislodged from the patient's skin and accidentally removed, phlebitis, extravasation / infiltration, leakage, occlusion, and bloodstream infections.

[0004] Fixation units (such as tapes or patches) may allow for partial or minute movement of the catheter assembly, which may cause discomfort to the patient. In addition, using sutures to fix the catheter assembly to the skin may result in suture-related infections and complications. In some cases, a clinician may have to access the insertion site of the intubation tube, for example, to perform maintenance procedures around the insertion site. However, conventional fixation units may not allow access to the area around the insertion site. In addition, the clinician may have to remove the fixation unit in order to access the insertion site, which may cause the intubation tube to piston and may require additional effort to stabilize the intubation tube and other components of the catheter assembly. Therefore, there is a need for an improved fixation device to overcome the above challenges of conventional fixation units and methods. Summary of the Invention

[0005] The present disclosure generally relates to a fixation device for a catheter assembly, a kit including the fixation device, and a method of using the fixation device.

[0006] In a first aspect, the present disclosure provides a fixation device for a catheter assembly, the catheter assembly having a catheter hub and an introducer configured to be inserted into a patient's skin at an insertion site. The fixation device includes a base assembly configured to be removably fixed to the patient's skin. The base assembly includes a base mount. The base assembly further includes a slider track fixedly coupled to the base mount and including a first coupling feature. The first coupling feature includes a first arcuate shape along the length of the first coupling feature. The fixation device further includes a hub assembly slidably coupled to the base assembly. The hub assembly includes a hub slider including a second coupling feature complementary to the first coupling feature. The second coupling feature includes a second arcuate shape along the length of the second coupling feature, the second arcuate shape being similar to the first arcuate shape of the slider track. The length of the second coupling feature is less than the length of the first coupling feature. The second coupling feature is at least partially and slidably engaged with the first coupling feature such that the hub slider is capable of sliding relative to the base assembly along the slider track. The hub assembly further includes a hub base fixedly coupled to and disposed on the hub slider on an opposite side of the slider track. The hub base is configured to be removably fixed to the catheter hub and the introducer. Additionally, the hub assembly is capable of being slidably moved relative to the base assembly along the slider track to a desired position.

[0007] In a second aspect, the present disclosure provides a kit. The kit includes a catheter assembly that includes: a catheter hub; at least one lumen extending from the catheter hub; and an introducer cannula extending from the catheter hub on an opposite side of the at least one lumen and configured to be inserted into a patient's skin at an insertion site. The kit further includes a securing device for the catheter assembly. The securing device includes a base assembly configured to be removably secured to the patient's skin. The base assembly includes a base mount. The base assembly further includes a slider track fixedly coupled to the base mount and including a first coupling feature. The first coupling feature includes a first arcuate shape along a length of the first coupling feature. The securing device further includes a hub assembly slidably coupled to the base assembly. The hub assembly includes a hub slider that includes a second coupling feature complementary to the first coupling feature. The second coupling feature includes a second arcuate shape along a length of the second coupling feature, the second arcuate shape being similar to the first arcuate shape of the slider track. The length of the second coupling feature is less than the length of the first coupling feature. The second coupling feature at least partially and slidably engages the first coupling feature such that the hub slider is capable of sliding relative to the base assembly along the slider track. The hub assembly further includes a hub base fixedly coupled to and disposed on the hub slider on an opposite side of the slider track. The hub base is configured to be removably secured to the catheter hub and the introducer cannula. Additionally, the hub assembly is capable of being slidably moved relative to the base assembly along the slider track to a desired position.

[0008] In a third aspect, the present disclosure provides a method of using a securing device having a catheter assembly with a catheter hub and an introducer cannula inserted into a patient's skin at an insertion site. The securing device includes: a base assembly configured to be removably secured to the patient's skin; and a hub assembly slidably coupled to the base assembly and configured to be removably secured to the catheter hub and the introducer cannula. The base assembly includes a slider track. Additionally, the hub assembly includes a hub slider capable of sliding along the slider track of the base assembly. The method includes removably securing the base assembly to the patient's skin. The method further includes removably securing the catheter hub and the introducer cannula of the catheter assembly to the hub assembly. The method further includes sliding the hub assembly along the slider track relative to the base assembly to a desired position. The exposed length of the introducer cannula between the hub assembly and the insertion site remains substantially constant at any position of the hub assembly along the slider track. The method further includes performing a maintenance procedure near the insertion site while positioning the hub assembly at the desired position.

[0009] BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The exemplary embodiments disclosed herein can be more fully understood by considering the following detailed description in conjunction with the accompanying drawings. The drawings are not necessarily to scale. The same numbers used in the drawings represent similar components. However, it should be understood that using numbers to refer to components in a given drawing is not intended to limit the components labeled with the same numbers in another drawing.

[0011] Figure 1A Schematic perspective view of a fixation device fixed to a patient's skin, illustrating an embodiment according to the present disclosure;

[0012] Figure 1B Illustrates an embodiment according to the present disclosure of Figure 1A Schematic cross-sectional side view of the base assembly of the fixation device;

[0013] Figure 2 Illustrates an embodiment according to the present disclosure of Figure 1A Schematic perspective view of a slider track coupled to a hub slider of the fixation device;

[0014] Figure 3A Illustrates an embodiment according to the present disclosure of Figure 1A Schematic cross-sectional view of a portion of the fixation device;

[0015] Figure 3B Schematic cross-sectional view of a hub slider coupled to a slider track, illustrating an embodiment according to the present disclosure;

[0016] Figure 4 Illustrates an embodiment according to the present disclosure of Figure 1A Exploded view of the hub assembly of the fixation device;

[0017] Figure 5 Illustrates an embodiment according to the present disclosure of Figure 1A Schematic perspective view of the fixation device with the hub assembly disposed at a central position;

[0018] Figure 6 Illustrates an embodiment according to the present disclosure of Figure 1A Schematic perspective view of the fixation device with the hub assembly disposed at a different position;

[0019] Figure 7 Illustrates another design of a slider track and a hub slider that can be associated with the fixation device, according to another embodiment of the present disclosure; Figure 1A Schematic perspective view;

[0020] Figure 8 Illustrates a block diagram of a kit including a fixation device according to an embodiment of the present disclosure; and Figure 1A

[0021] Figure 9 Illustrates the use of Figure 1A a fixture according to an embodiment of the present disclosure. Detailed Description

[0022] In the following description, reference is made to the accompanying drawings, which form a part hereof, and in which various embodiments are shown by way of illustration. It is to be understood that other embodiments are contemplated and may be made without departing from the scope or spirit of the present disclosure. Accordingly, the following detailed description should not be taken in a limiting sense.

[0023] In the following disclosure, the following definitions are adopted.

[0024] As used herein, all numbers should be considered to be modified by the term "about". As used herein, "a", "an", "the", "at least one", and "one or more" may be used interchangeably.

[0025] As used herein as a modifier of a property or attribute, unless otherwise specifically defined, the term "substantially" means that the property or attribute will be readily recognizable by one of ordinary skill in the art but does not require absolute precision or perfect match (e.g., within + / - 20% for a quantifiable property).

[0026] Unless otherwise specifically defined, the term "essentially" means highly approximate (e.g., within + / - 10% for a quantifiable property), but again does not require absolute precision or perfect match.

[0027] Unless otherwise specifically defined, the term "about" means highly approximate (e.g., within + / - 5% for a quantifiable property), but again does not require absolute precision or perfect match.

[0028] Terms such as same, equal, consistent, constant, exact, etc. are understood to be within the normal tolerances or measurement errors applicable to a particular situation, and do not require absolute precision or perfect match.

[0029] As used herein, the terms "first" and "second" are used as identifiers. Accordingly, such terms should not be construed as limiting the present disclosure. The terms "first" and "second" may be interchanged in embodiments of the present disclosure when used in conjunction with features or elements.

[0030] As used herein, "at least one of A and B" should be understood to mean "only A, only B, or both A and B".

[0031] Unless otherwise specified or limited, the terms "attach", "connect", "couple" and their variants are used broadly and encompass both direct and indirect attachment, connection, and coupling.

[0032] As used herein, the terms "layer", "sheet", and "dressing" or variations thereof are used to describe articles having a thickness that is small relative to their length and width.

[0033] As used herein, the term "polymer" refers to a material prepared from one monomer (such as a homopolymer) or from two or more monomers (such as a copolymer, terpolymer, etc.). Similarly, the term "polymerization" refers to the process of preparing a polymeric material that can be a homopolymer, copolymer, terpolymer, etc. The term "copolymer" refers to a polymeric material prepared from at least two different monomers.

[0034] As used herein, the term "insertion site" refers to the location where the cannula of a catheter is inserted into a patient's skin.

[0035] As used herein, the term "maintenance procedure" generally refers to a procedure that includes cleaning and / or disinfecting the patient's skin near the insertion site. The maintenance procedure can be performed regularly by a healthcare practitioner, for example, during intravenous therapy.

[0036] As used herein, the term "pistoning" or "pistoning movement" refers to the movement of the cannula of a catheter relative to the insertion site.

[0037] As used herein, when used in conjunction with the terms "cannula" or "catheter", the term "inserted into the skin" refers to inserting the catheter or cannula through the patient's skin. For example, the distal end of the catheter or cannula can be located at any desired anatomical site, including, by way of non-limiting example, within the lumen of a vein and / or artery, within the atria and ventricles of the heart, within the abdominal cavity, within the spinal canal, within the subarachnoid space, within the intracranial space, and within adipose and / or muscle tissue.

[0038] Catheter assemblies can be used to administer drugs and fluids to a patient, supply air, and / or remove fluids. It may be necessary to secure such catheter assemblies to the patient's skin to prevent movement of the catheter assembly. For example, the catheter assembly can be secured to the patient's skin to prevent the catheter assembly from being pulled out, which otherwise could move in a manner that may adversely affect the function of the catheter assembly. Such catheter assemblies typically include a cannula inserted into the patient's skin at the insertion site.

[0039] Conventional fixation units (such as tapes, patches, and sutures) may not be able to properly fix the catheter assembly to the patient's skin. Specifically, conventional fixation units may not be able to properly stabilize the catheter assembly, thus allowing undesirable movement of the catheter assembly during use. In some cases, the use of conventional fixation units may result in various complications, such as the catheter assembly moving out of the patient's skin and being accidentally removed, phlebitis, extravasation, occlusion / infiltration, leakage, and bloodstream infection. Fixation units (such as tapes or patches) may allow partial or minor movement of the catheter assembly, which may cause discomfort to the patient. In addition, using sutures to fix the catheter assembly to the skin may result in suture-related infections and complications.

[0040] In some cases, a clinician may have to access the insertion site, for example, to perform maintenance procedures around the insertion site. However, conventional fixation units may not allow access to the area around the insertion site. More specifically, the clinician may have to remove the fixation unit to access the insertion site, which may cause cannula pistoning and may require additional efforts in stabilizing the cannula or other components of the catheter assembly. Therefore, an improved fixation device may be needed to overcome the above challenges of conventional fixation units and methods.

[0041] The present disclosure provides a fixation device for a catheter assembly having a catheter hub and a cannula configured to be inserted into a patient's skin at an insertion site. The fixation device includes a base assembly configured to be removably fixed to the patient's skin. The base assembly includes a base mount. The base assembly further includes a slider track fixedly coupled to the base mount and including a first coupling feature. The first coupling feature includes a first arcuate shape along the length of the first coupling feature. The fixation device further includes a hub assembly slidably coupled to the base assembly. The hub assembly includes a hub slider including a second coupling feature complementary to the first coupling feature. The second coupling feature includes a second arcuate shape along the length of the second coupling feature, the second arcuate shape being similar to the first arcuate shape of the slider track. The length of the second coupling feature is less than the length of the first coupling feature. The second coupling feature at least partially and slidably engages the first coupling feature such that the hub slider is capable of sliding along the slider track relative to the base assembly. The hub assembly further includes a hub base fixedly coupled to and disposed on the hub slider on an opposite side of the slider track. The hub base is configured to be removably fixed to the catheter hub and the cannula. In addition, the hub assembly is capable of slidingly moving along the slider track relative to the base assembly to a desired position. The present disclosure also relates to a kit including the fixation device and a method of using the fixation device.

[0042] The slider track and the hub slider together can allow the hub assembly to move relative to the base assembly. Thus, a clinician can be able to easily access the insertion site for maintenance procedures such as cleaning procedures. In addition, the design of the slider track and the slider channel can prevent the piston movement of the cannula when the hub assembly moves along the slider track to different positions. The fixing device allows the hub assembly to be easily and quickly positioned at any desired position based on the sliding force applied to the hub assembly. Further, the minimum distance defined between the insertion position and the hub base is constant at any position of the hub assembly along the slider track. Thus, the fixing device eliminates any possibility of piston movement / movement of the cannula when the hub assembly is moved.

[0043] The fixing device firmly fixes the catheter assembly to the patient's skin. Specifically, the fixing device can firmly fix various components of the catheter assembly, such as the catheter hub, the lumen, and the cannula, to the patient's skin. The fixing device can prevent the movement of the catheter assembly and eliminate the need for any additional tape, patch, or suture. It should be noted that once the fixing device is placed on the patient's skin, no additional dressing may be required.

[0044] In addition, the base of the base assembly can be removably fixed to the patient's skin. The base includes one or more tabs that can be grasped by a user such as a clinician / medical professional. The tabs can be pulled to detach the base from the skin. The adhesive layer firmly fixes the base to the patient's skin. The adhesive layer can include a stretch-release adhesive such that based on pulling the tabs, the adhesive layer loses its adhesive property. Subsequently, the base can be easily released to remove the fixing device from the patient's skin without causing discomfort to the patient. In addition, the fixing device can prevent the catheter assembly from moving out of and being accidentally removed from the patient's skin.

[0045] Thus, the fixing device of the present disclosure can firmly fix the catheter assembly to the patient's skin, can inhibit the undesired movement of the catheter assembly, can prevent infection at the insertion site, can facilitate the easy removal of the fixing device after use, and can allow a clinician to easily access the area around the insertion site without removing the fixing device or causing the cannula to perform piston movement.

[0046] Now referring to the drawings, Figure 1A A schematic perspective view of a fixing device 100 for a catheter assembly 10 according to an embodiment of the present disclosure is illustrated. In Figure 1A the illustrated embodiment, the catheter assembly 10 is disposed on the skin 12 of a patient 14. As Figure 1A shown, the catheter assembly 10 includes a catheter hub 16 and a cannula 18 that is configured to be inserted into the skin 12 of the patient 14 at an insertion site 20. In addition, the cannula 18 is at least partially received within the catheter hub 16.

[0047] The catheter assembly 10 further includes at least one lumen 22 that is at least partially received within the catheter hub 16. In Figure 1A the illustrated embodiment, the at least one lumen 22 includes three lumens 22. In other words, the catheter assembly 10 is a three-lumen catheter assembly 10. However, the number of lumens 22 can vary based on the desired application and / or infusion properties. The lumen 22 is in fluid communication with the cannula 18.

[0048] In Figure 1A the illustrated embodiment, the catheter hub 16 includes a pair of opposing wings 24 and one or more apertures 26. Specifically, in Figure 1A the illustrated embodiment, the catheter hub 16 includes corresponding apertures 26 located on each of the pair of opposing wings 24.

[0049] In some embodiments, the catheter assembly 10 can include a central venous catheter (CVC). A CVC can be referred to as a central line, central venous line, or central venous access catheter. A CVC can be used to access large, central veins (not shown) that may be needed for critically ill patients, for patients requiring extended intravenous therapy for reliable vascular access, and for administering fluids that may damage smaller peripheral veins. Thus, in some embodiments, at least a portion of the cannula 18 can be inserted into a vein located in the neck of the patient 14 (e.g., the internal jugular vein), a vein located in the chest cavity of the patient 14 (e.g., the subclavian vein or axillary vein), or a vein located in the groin of the patient 14 (e.g., the femoral vein). In some embodiments, the catheter assembly 10 can include a peripherally inserted central catheter (PICC). A PICC can be suitable for insertion into a vein located in the arm of the patient 14. However, the catheter assembly 10 can include any suitable type of catheter that can be selected based on the desired application properties.

[0050] Thus, the catheter assembly 10 can be used to administer intravenous therapies (e.g., drugs or fluids for non-oral nutrition), obtain blood for analysis, and / or provide an access point for blood-based therapies such as dialysis or apheresis. The catheter assembly 10 can further be used to measure one or more properties of the blood (e.g., "central venous oxygen saturation"), administer fluids or blood products for large volume resuscitation, and / or measure central venous pressure.

[0051] As Figure 1AAs shown, the fixation device 100 includes a base assembly 102 configured to be removably fixed to the skin 12 of a patient 14. The base assembly 102 includes a base mount 104. The base mount 104 has a generally tapered shape. Specifically, the base mount 104 tapers toward the insertion site 20. The base assembly 102 further includes a slider track 106 fixedly coupled to the base mount 104. The slider track 106 includes a first coupling feature 108. The first coupling feature 108 includes a first arcuate shape 110 along a length L1 of the first coupling feature 108 (shown in Figure 2 ). The length L1 is implemented herein as a curved length.

[0052] The fixation device 100 further includes a hub assembly 112 slidably coupled to the base assembly 102 (not shown in Figure 1A and Figure 4 ). The hub assembly 112 is movable along the slider track 106 relative to the base assembly 102 to a desired position. The hub assembly 112 includes a hub slider 114 (shown in Figure 2 , Figure 3A , Figure 3B and Figure 4 ). The slider track 106 and the hub slider 114 together allow the hub assembly 112 to move relative to the base assembly 102. Based on the sliding of the hub assembly 112, a clinician can easily access the insertion site 20 for maintenance procedures such as cleaning procedures. Specifically, a clinician can access a 360-degree area around the insertion site 20. Additionally, the design of the slider track 106 and the hub slider 114 can prevent piston movement of the cannula 18 when the hub assembly 112 is moved to any position along the slider track 106. The hub assembly 112 further includes a hub base 116 fixedly coupled to and disposed on the hub slider 114 on the opposite side of the slider track 106. The hub base 116 is configured to be removably fixed to the catheter hub 16 and the cannula 18.

[0053] In addition, the base assembly 102 includes a base 118. The base 118 is generally oval. The base 118 can be a passive dressing. In other words, in some embodiments, the base 118 can be non-occlusive. However, the base 118 can be an interactive dressing. In other words, in some embodiments, the base 118 can be semi-occlusive or occlusive. In some embodiments, the base 118 can serve as a barrier to prevent bacterial penetration. In some embodiments, the base 118 can maintain hydration of the area of the skin 12 where the base 118 is removably fixed and can reduce infection of the area of the skin 12 where the base 118 is removably fixed.

[0054] The base 118 may include a stretchable polymeric material. The base 118 may be made of a stretchable material that can conform to a wavy surface, such as the skin 12 of the patient 14. Thus, in some embodiments, the base 118 may be configured to exhibit high elasticity. In some embodiments, the base 118 may have a high tensile strength, a low elastic recovery rate, and a high elongation at break.

[0055] In some embodiments, the base 118 may include at least one of a polymer film, a polymer foam, a polymer hydrocolloid, and a polymer alginate. In some embodiments, the base 118 may include polyolefins, such as polyethylene, including high density polyethylene, low density polyethylene, linear low density polyethylene, and linear ultra low density polyethylene, polypropylene, and polybutene; ethylene copolymers, such as plasticized and unplasticized polyvinyl chloride, and polyvinyl acetate; olefin copolymers, such as ethylene / methacrylate copolymer, ethylene / vinyl acetate copolymer, acrylonitrile butadiene-styrene copolymer, and ethylene propylene copolymer; acrylic polymers and copolymers; and combinations thereof. In some embodiments, the base 118 may be in the form of a single layer film or a multi-layer film, a non-woven film, a porous film, a foamed film, and combinations thereof. In some embodiments, the base 118 may be manufactured using any suitable film-forming method, such as extrusion, co-extrusion, solvent casting, foaming, non-woven techniques, etc.

[0056] The base 118 includes one or more tabs 120 that can be grasped by a user, such as a clinician or a healthcare professional. The tabs 120 can be pulled to detach the base 118 from the skin 12. The tabs 120 allow the base 118 to be grasped to apply and remove the fixation device 100, and also allow a clinician or any other healthcare professional to peel off the release liner 122 (shown in Figure 1B to apply the fixation device 100 to the skin 12 of the patient 14. To remove the base 118 from the skin 12 of the patient 14, the base 118 can be stretched by grasping and pulling the tabs 120. Thus, by stretching the base 118 based on grasping the tabs 120, the base 118 can be easily removed from the skin 12 of the patient 14. The tabs 120 are provided along a portion of the perimeter of the base 118. In Figure 1A the illustrated embodiment, the base 118 includes two tabs 120 disposed at opposite ends 119, 121 of the base 118. The tabs 120 are non-adhesive areas such that the tabs 120 are not attached to the skin 12 of the patient 14. In some examples, the tabs 120 may include markings, such as arrows indicating the direction along which the tabs 120 need to be pulled to remove the fixation device 100. In addition to the arrows, the markings may include text, such as "Pull".

[0057] Figure 1BIllustrates a schematic cross-sectional view of the base assembly 102. For clarity and understanding, the thicknesses of the various components of the base assembly 102 have been depicted in an enlarged manner. Refer to Figure 1A and Figure 1B , the base 118 includes a first major surface 126 fixedly coupled to the base mount 104 on opposite sides of the slider track 106 and a second major surface 128 opposite the first major surface 126. The base assembly 102 also includes a release pad 122. In some embodiments, the release pad 122 does not cover the tab 120. The base assembly 102 also includes an adhesive layer 130 that is at least partially disposed on the second major surface 128 and is configured to removably secure the base assembly 102 to the skin 12 of the patient 14. It should be noted that the tab 120 does not have the adhesive layer 130.

[0058] In some embodiments, the adhesive layer 130 includes a stretch-release adhesive. In some embodiments, the adhesive strength of the stretch-release adhesive may be less than the cohesive strength of the stretch-release adhesive such that when the base 118 is stretched, the adhesive ability of the stretch-release adhesive may substantially disappear. Specifically, the tackiness of the stretch-release adhesive may be lost when the base 118 is stretched. Thus, based on pulling the base 118, the adhesive layer 130 loses its adhesive properties. Subsequently, the base 118 can be easily released to remove the fixation device 100 from the skin 12 of the patient 14. The base assembly 102 can be easily removed from the skin 12 of the patient 14 without causing discomfort to the patient 14. In addition, the base assembly 102 can prevent the catheter assembly 10 from moving out of and being accidentally removed from the skin 12 of the patient 14.

[0059] As Figure 2 shown, the slider track 106 includes a pair of end walls 132 that are circumferentially spaced apart from each other and are disposed at respective opposite ends 134, 136 of the slider track 106. Each end wall of the pair of end walls 132 is configured to engage the hub slider 114 to limit the sliding movement of the hub slider 114 at the respective opposite ends 134, 136 of the slider track 106.

[0060] Now refer to Figure 1A and Figure 2, the slider track 106 has a first center of curvature C1. In addition, the hub assembly 112 includes a hub slider 114. The hub slider 114 includes a second coupling feature 138 that is complementary to the first coupling feature 108. The second coupling feature 138 includes a second arcuate shape 140 along a length L2 of the second coupling feature 138, which second arcuate shape is similar to the first arcuate shape 110 of the slider track 106. The length L2 of the second coupling feature 138 is less than the length L1 of the first coupling feature 108. The length L2 is implemented herein as a curved length. The second coupling feature 138 is at least partially and slidably engaged with the first coupling feature 108 such that the hub slider 114 is capable of sliding relative to the base assembly 102 along the slider track 106. In addition, the second coupling feature 138 is at least partially and frictionally engaged with the first coupling feature 108 such that the hub slider 114 remains stationary relative to the slider track 106 when the sliding forces F1, F2 on the hub assembly 112 are removed. It should be noted that the application directions of the sliding forces F1 and F2 are opposite to each other. By means of the slider track 106 and the hub slider 114, the fixing device 100 can allow the hub assembly 112 to be easily and quickly positioned at any desired position based on the sliding forces F1, F2 applied to the hub assembly 112. In addition, the hub slider 114 has a second center of curvature C2 that coincides with the first center of curvature C1 of the slider track 106.

[0061] Reference Figure 2 and Figure 3A , the base mount 104 includes an arcuate guide rail 142 spaced apart from the slider track 106. In addition, the hub base 116 includes an engagement feature 144 configured to slidably engage with the guide rail 142 of the base mount 104. When the hub slider 114 slides relative to the slider track 106, the engagement feature 144 slides along the guide rail 142 accordingly. The engagement feature 144 is implemented herein as a protrusion extending from the hub base 116. The shape of the engagement feature 144 is arcuate and corresponds to the shape of the guide rail 142. In other examples, the engagement feature 144 may include a groove or slot defined by the hub base 116 rather than a protrusion. In addition, the base mount 104 may further include one or more markings that indicate the direction in which the hub slider 114 can move along to position the hub assembly 112 at a desired position.

[0062] Figure 3A and Figure 3B Illustrates a cross-sectional view of the hub slider 114 coupled to the slider track 106. As Figure 3A and Figure 3BAs shown, the first coupling feature 108 includes a first portion 146 that is fixedly coupled to and extends from the base mount 104. The first portion 146 includes a first elongate member 148 and a second elongate member 150 that extends orthogonally from the first elongate member 148. Additionally, the first coupling feature 108 includes a second portion 152 that is coupled to the first portion 146 and is substantially orthogonal to the first portion. The second portion 152 is spaced apart from the base mount 104. The second portion 152 has a tapered shape. The second portion 152 is substantially parallel to the first elongate member 148 and extends orthogonally with respect to the second elongate member 150. The second elongate member 150 connects the first elongate member 148 to the second portion 152. It should be noted that the first coupling feature 108 can include components of any other design or arrangement without any limitation.

[0063] Additionally, the second coupling feature 138 includes a base portion 154 that is fixedly coupled to the hub base 116. As Figure 3B shown, the second coupling feature 138 also includes a pair of side portions 156 that are coupled to and extend from respective opposite longitudinal ends 158, 160 of the base portion 154. Each side portion of the pair of side portions 156 is substantially orthogonal to the base portion 154. The second coupling feature 138 also includes a pair of retaining portions 162 that are substantially parallel to the base portion 154. Each retaining portion of the pair of retaining portions 162 is coupled to and extends from a respective side portion 156 of the pair of side portions 156 distal to the base portion 154. The base portion 154, the pair of side portions 156, and the pair of retaining portions 162 define a slot 163 therebetween. The slot 163 at least partially receives the second portion 152 of the first coupling feature 108 therein such that the second portion 152 at least partially and slidably engages the base portion 154, the pair of side portions 156, and the pair of retaining portions 162. It should be noted that the second coupling feature 138 can include components of any other design or arrangement without any limitation.

[0064] Now refer to Figures 1A to 4, the hub base 116 defines a first end 164 and a second end 166 opposite the first end 164. Additionally, the hub base 116 includes a hub receiving portion 168 configured to removably secure the catheter hub 16 therein. The hub receiving portion 168 defines a base surface 170. Further, the hub base 116 includes one or more stabilizing lugs 172 extending from the base surface 170. The hub base 116 includes two stabilizing lugs 172. The stabilizing lugs 172 are arranged such that the stabilizing lugs 172 can together receive the catheter hub 16 therein. The stabilizing lugs 172 can engage with the catheter hub 16 to secure the catheter hub 16 within the hub receiving portion 168. In some examples, the stabilizing lugs 172 can engage with the catheter hub 16 to restrict any movement of the catheter hub 16 relative to the base surface 170. In some embodiments, the stabilizing lugs 172 can be aligned with holes 26 in the catheter hub 16 to receive the stabilizing lugs 172 within the holes 26.

[0065] The hub receiving portion 168 further includes a peripheral wall 174 separating the hub receiving portion 168 from the cannula receiving portion 176. The peripheral wall 174 extends orthogonally from the base surface 170. The peripheral wall 174 and the base surface 170 together define a receiving space 178 within the hub receiving portion 168 such that the catheter hub 16 is received within the receiving space 178 and rests on the base surface 170. Further, the peripheral wall 174 includes a locking member 180 at the first end 164 of the hub base 116. The peripheral wall 174 also includes a cannula opening 182 extending therethrough. The cannula opening 182 is configured to at least partially receive the cannula 18 passing therethrough.

[0066] The peripheral wall 174 also includes at least one lumen opening 184 extending therethrough and disposed opposite the cannula opening 182. The at least one lumen opening 184 is configured to at least partially receive at least one lumen 22 of the catheter assembly 10 passing through the at least one lumen opening. Herein, the peripheral wall 174 includes three lumen openings 184. However, the total number of lumen openings 184 can vary based on the number of lumens 22.

[0067] The hub base 116 further includes a cannula receiving portion 176 disposed adjacent to the hub receiving portion 168 and configured to at least partially and removably secure the cannula 18 therein. The cannula receiving portion 176 extends from the hub receiving portion 168. The cannula receiving portion 176 includes a first slot 186 configured to at least partially receive the cannula 18 therein.

[0068] The hub assembly 112 further includes a hub cap 188 configured to removably couple to the hub receiving portion 168 of the hub base 116. The hub cap 188 is illustrated in Figure 1A as being in an open position and in Figure 5is illustrated as being in the closed position. When the hub cap 188 is coupled to the hub receiving portion 168, the hub cap 188 and the hub receiving portion 168 removably secure the catheter hub 16 therebetween. The hub cap 188 is pivotally coupled to the hub receiving portion 168 at a first end 164 of the hub base 116 and is pivotally movable relative to the hub receiving portion 168 independently of the cannula cap 190. Specifically, the hub base 116 includes a living hinge 192 that pivotally couples the hub cap 188 to the hub receiving portion 168. The hub cap 188 is removably coupled to the hub receiving portion 168 at a second end 166 of the hub base 116. Specifically, the hub cap 188 defines a cavity (not shown) that receives a locking member 180 of the hub receiving portion 168 to lock the hub cap 188 to the hub receiving portion 168. It should be noted that any other technique may be used to removably couple the hub cap 188 to the hub receiving portion 168.

[0069] In addition, the hub base 116 includes a cannula cap 190 that is separate from the hub cap 188 and is configured to be removably coupled to a cannula receiving portion 176 of the hub base 116. The cannula cap 190 is Figure 1A illustrated as being in the open position and in Figure 5 illustrated as being in the closed position. Since the cannula cap 190 is independent of the hub cap 188, a user may be able to access the catheter hub 16 without opening the hub cap 188. When the cannula cap 190 is coupled to the cannula receiving portion 176, the cannula cap 190 and the cannula receiving portion 176 removably secure the cannula 18 therebetween. When the hub cap 188 is removed from the hub receiving portion 168 and the catheter hub 16 is removed from the hub receiving portion 168, the cannula 18 remains removably secured to the cannula receiving portion 176. The cannula cap 190 is pivotally coupled to the cannula receiving portion 176 at a first end 164 of the hub base 116 and is pivotally movable relative to the cannula receiving portion 176 independently of the hub cap 188. The cannula cap 190 is removably coupled to the cannula receiving portion 176 at a second end 166 of the hub base 116.

[0070] The cannula cap 190 includes a second slot 194. When the cannula cap 190 is removably coupled to the cannula receiving portion 176, the second slot 194 is at least partially aligned with the first slot 186. In addition, when the cannula 18 is inserted into the first slot 186 and the cannula cap 190 is removably coupled to the cannula receiving portion 176, the first slot 186 and the second slot 194 together and at least partially receive the cannula 18 therebetween such that the cannula 18 is removably secured to the cannula receiving portion 176.

[0071] Referring to Figure 4, the fixing device 100 includes a first sleeve 196 at least partially received within a first slot 186 and a second sleeve 198 at least partially received within a second slot 194. When the cannula 18 is inserted into the first slot 186 and the cannula cap 190 is removably coupled to the cannula receiving portion 176, each of the first sleeve 196 and the second sleeve 198 frictionally engages the cannula 18 (see Figure 1A ), such that the cannula 18 is removably fixed between the cannula receiving portion 176 and the cannula cap 190. This frictional engagement of the cannula 18 prevents any accidental removal of the cannula 18 from the cannula receiving portion 176.

[0072] Figure 5 and Figure 6 illustrates a schematic perspective view in which each of the hub cap 188 and the cannula cap 190 is in a closed position. Figure 5 illustrates the hub assembly 112 at a central position, i.e., when the hub assembly 112 is centered relative to the slider track 106. Additionally, referring to Figure 6 , when a sliding force F1 is applied to the hub assembly 112, the hub assembly 112 can be positioned closer to the end 119 of the base 118 and farther from the end 121 of the base 118. Additionally, if a sliding force F2 is applied to the hub assembly 112, the hub assembly 112 can be positioned closer to the end 121 and farther from the end 119. It should be noted that as the hub slider 114 (see Figure 2 , Figure 3A , Figure 3B and Figure 4 ) slides along the slider track 106, the hub assembly 112 is capable of rotating about a pivot axis P1 passing through a first center of curvature C1. In some embodiments, each of the first center of curvature C1 and the second center of curvature C2 is disposed at the insertion site 20 such that the pivot axis P1 passes through the insertion site 20. Additionally, the minimum distance D1 defined between the pivot axis P1 and the hub base 116 is constant at any position of the hub assembly 112 along the slider track 106. Additionally, the exposed length L3 of the cannula 18 between the hub base 116 and the insertion site 20 is substantially constant at any position of the hub assembly 112 along the slider track 106. Additionally, since both the minimum distance D1 and the exposed length L3 remain constant at any position of the hub assembly 112 along the slider track 106, the fixing device 100 eliminates any possibility of piston movement / motion of the cannula 18 when the hub assembly 112 is moved to a different position.

[0073] The fixing device 100 securely fixes the catheter assembly 10 to the skin 12 of the patient 14. Specifically, the fixing device 100 can secure various components of the catheter assembly 10 (such as, as Figure 1AThe catheter hub 16, lumen 22, and cannula 18 shown are firmly fixed to the skin 12 of the patient 14. In addition, the fixation device 100 can inhibit undesired movement of the catheter assembly 10. Thus, the fixation device 100 can prevent various complications that might otherwise occur due to minor movement of the catheter assembly 10. In addition, the fixation device 100 can eliminate the need for any additional tapes, patches, or sutures for fixing the catheter assembly 10. Additionally, the fixation device 100 can facilitate easy removal of the fixation device 100 after use.

[0074] Furthermore, sliding of the hub assembly 112 relative to the base assembly 102 can allow a clinician to easily access the area around the insertion site 20 without removing the fixation device 100. For example, the clinician can access a 360-degree area around the insertion site 20 without removing the fixation device 100. The fixation device 100 can further prevent infection at the insertion site 20. In addition, the fixation device 100 can provide improved comfort to the patient 14 during use.

[0075] Figure 7 Another embodiment of the present disclosure is illustrated. Specifically, Figure 7 a slider track 706 substantially similar to the slider track 106 explained with respect to Figures 1A to 4 is illustrated, and a hub slider 714 substantially similar to the hub slider 114 explained with respect to Figures 1A to 4 is illustrated. The slider track 706 includes a first coupling feature 708 substantially similar to the first coupling feature 108 (see Figure 1A and Figure 2 ). In addition, the hub slider 714 includes a second coupling feature 738 substantially similar to the second coupling feature 138 (see Figure 2 ).

[0076] However, the slider track 706 includes a plurality of locking portions 701 that are disposed on the first coupling feature 708 at corresponding plurality of locking positions along a length L4 of the first coupling feature 708. Each of the plurality of locking portions 701 is configured to removably engage with the second coupling feature 738 to lock the hub slider 714 to the slider track 706 at the corresponding locking position. In addition, the hub assembly 112 (see Figure 1A , Figure 4 , Figure 5 and Figure 6is configured to be secured at a selected one of a plurality of locking positions. Accordingly, the locking portion 701 may permit locking of the hub assembly 112 at any one of a plurality of locking positions. In some examples, the plurality of locking positions may include three discrete locking positions, without any limitation thereto. Additionally, the hub slider 714 includes at least one opening 703 for receiving a corresponding locking portion 701 therein. Specifically, the hub slider 714 includes a single opening 703. The opening 703 is substantially rectangular. It should be noted that the slider track 706 or the hub slider 714 may include components of any other design or arrangement that may permit locking of the hub slider 714 to the slider track 706. In an alternative example, the locking portion 701 may be provided on a second coupling feature 738 of the hub slider 714.

[0077] Figure 8 FIG. illustrates a schematic block diagram of a kit 200 according to an embodiment of the present disclosure. Referring Figure 1A and Figure 8 , the kit 200 includes a catheter assembly 10. In the illustrated embodiment, the catheter assembly 10 includes: a catheter hub 16; at least one lumen 22 extending from the catheter hub 16; and an introducer 18 extending from the catheter hub 16 on an opposite side of the at least one lumen 22 and configured for insertion into the skin 12 of a patient 14 at an insertion site 20. The kit 200 further includes a fixation device 100 as explained with reference Figures 1A to 6 .

[0078] In some embodiments, the kit 200 may further include gloves (not shown). In some embodiments, the kit 200 may further include a bactericidal material (not shown). In some embodiments, the kit 200 may further include a cloth or other absorbent material (not shown). In some embodiments, the kit 200 may further include a cleaning product (not shown), such as a cleaning cloth, absorbent cotton, cotton swabs, etc.

[0079] The kit 200 is for use by a clinician or healthcare professional in a sterile package. The clinician may remove the release liner 122 (see Figure 1B ) and detachably attach the fixation device 100 to the skin 12 (see Figure 1A ). Accordingly, the catheter assembly 10 may be secured and stabilized. In some cases, the clinician may further apply a window dressing over the insertion site 20 to provide additional protection against infection at the insertion site 20.

[0080] Figure 9A flowchart of a method 900 of using a fixation device 100 with a catheter assembly 10 is illustrated. The catheter assembly has a catheter hub 16 and an introducer 18 inserted into the skin 12 of a patient 14 at an insertion site 20. The fixation device 100 includes: a base assembly 102 configured to be removably fixed to the skin 12 of the patient 14; and a hub assembly 112 slidably coupled to the base assembly 102 and configured to be removably fixed to the catheter hub 16 and the introducer 18. The base assembly 102 includes a slider track 106. Additionally, the hub assembly 112 includes a hub slider 114 that is capable of sliding along the slider track 106 of the base assembly 102. Method 900 will now be explained with respect to Figure 1A and Figure 9 Interpret method 900.

[0081] Reference Figure 1A and Figure 9 , at step 902, the base assembly 102 is removably fixed to the skin 12 of the patient 14. Additionally, removably fixing the base assembly 102 to the skin 12 of the patient 14 includes removably bonding the base 118 of the base assembly 102 to the skin 12 of the patient 14 via an adhesive.

[0082] At step 904, the catheter hub 16 and the introducer 18 of the catheter assembly 10 are removably fixed to the hub assembly 112. Additionally, removably fixing the introducer 18 of the catheter assembly 10 to the hub assembly 112 includes inserting the catheter hub 16 into the hub base 116 of the hub assembly 112. Additionally, removably fixing the introducer 18 of the catheter assembly 10 to the hub assembly 112 further includes removably coupling a hub cap 188 to the hub base 116 such that the catheter hub 16 is fixed between the hub base 116 and the hub cap 188. Additionally, removably fixing the introducer 18 of the catheter assembly 10 to the hub assembly 112 further includes inserting the introducer 18 into a first slot 186 of an introducer receiving portion 176 of the hub assembly 112. The introducer receiving portion 176 is disposed adjacent to the hub base 116. Additionally, removably fixing the introducer 18 of the catheter assembly 10 to the hub assembly 112 further includes removably coupling an introducer cap 190 to the introducer receiving portion 176 such that the first slot 186 of the introducer receiving portion 176 and a second slot 194 of the introducer cap 190 jointly and at least partially receive the introducer 18 therebetween.

[0083] At step 906, the hub assembly 112 is slid along the slider track 106 relative to the base assembly 102 to a desired position. The exposed length L3 of the introducer 18 between the hub assembly 112 and the insertion site 20 remains substantially constant at any position of the hub assembly 112 along the slider track 106.

[0084] At step 908, while positioning the hub assembly 112 at the desired location, a maintenance procedure is performed in the vicinity of the insertion site 20. Further, the catheter hub 16 is removed from the hub base 116 while the cannula 18 remains fixed to the cannula receiving portion 176. Further, removing the catheter hub 16 from the hub base 116 includes disassembling the hub cap 188 from the hub base 116 while the cannula cap 190 remains coupled to the cannula receiving portion 176.

[0085] Unless otherwise indicated, all numbers expressing feature sizes, amounts, and physical properties used in the specification and claims are to be understood as being modified by the term “about.” Accordingly, unless indicated to the contrary, the numerical parameters set forth in the foregoing specification and attached claims are approximations that may vary depending upon the desired properties sought to be obtained by those skilled in the art utilizing the teachings disclosed herein.

[0086] Although specific embodiments have been illustrated and described herein, it will be appreciated by those of ordinary skill in the art that various alternatives and / or equivalent specific practices may substitute for the specific embodiments shown and described without departing from the scope of the present disclosure. This application is intended to cover any adaptations or variations of the specific embodiments discussed herein. Accordingly, this disclosure is intended to be limited only by the claims and their equivalents.

Claims

1. A fixing device for a catheter assembly, the catheter assembly having a catheter hub and an intubation tube configured to be inserted into a patient's skin at an insertion site, the fixing device comprises: a base assembly configured to be removably fixed to the patient's skin, the base assembly comprising: a base mount; and a slider track fixedly coupled to the base mount and including a first coupling feature, wherein the first coupling feature includes a first arcuate shape along the length of the first coupling feature; and a hub assembly slidably coupled to the base assembly, the hub assembly comprising: a hub slider including a second coupling feature complementary to the first coupling feature, wherein the second coupling feature includes a second arcuate shape along the length of the second coupling feature, the second arcuate shape being similar to the first arcuate shape of the slider track, wherein the length of the second coupling feature is less than the length of the first coupling feature, and wherein the second coupling feature at least partially and slidably engages the first coupling feature such that the hub slider can slide relative to the base assembly along the slider track; and a hub base fixedly coupled to and disposed on the hub slider on the opposite side of the slider track, the hub base being configured to be removably fixed to the catheter hub and the intubation tube; wherein the hub assembly can be slidably moved along the slider track relative to the base assembly to a desired position.

2. The fixing device according to claim 1, wherein the second coupling feature at least partially and frictionally engages the first coupling feature such that when the sliding force on the hub assembly is removed, the hub slider remains stationary relative to the slider track.

3. The fixing device according to claim 1, wherein the slider track further includes a plurality of locking portions disposed on the first coupling feature at a corresponding plurality of locking positions along the length of the first coupling feature, wherein each of the plurality of locking portions is configured to removably engage the second coupling feature to lock the hub slider and the slider track at the corresponding locking position, and wherein the hub assembly is configured to be fixed at a selected one of the plurality of locking positions.

4. The fixing device according to claim 1, wherein the slider track further includes a pair of end walls circumferentially spaced apart from each other and disposed at respective opposite ends of the slider track, and wherein each of the pair of end walls is configured to engage the hub slider to limit the sliding movement of the hub slider at the respective opposite ends of the slider track.

5. The fixing device according to claim 1, wherein the slider track has a first center of curvature, wherein the hub slider has a second center of curvature that coincides with the first center of curvature of the slider track, and wherein when the hub slider slides along the slider track, the hub assembly is capable of rotating about a pivot axis passing through the first center of curvature.

6. The fixing device according to claim 5, wherein each of the first center of curvature and the second center of curvature is disposed at the insertion site such that the pivot axis passes through the insertion site.

7. The fixing device according to claim 5, wherein the minimum distance defined between the pivot axis and the hub base is constant at any position of the hub assembly along the slider track.

8. The fixing device according to claim 1, wherein the base mount includes an arcuate guide rail spaced apart from the slider track, wherein the hub base includes engagement features configured to slidably engage with the guide rail of the base mount, and wherein when the hub slider slides relative to the slider track, the engagement features slide along the guide rail accordingly.

9. The fixing device according to claim 1, wherein the first coupling feature comprises: a first portion fixedly coupled to the base mount and extending from the base mount; and a second portion coupled to the first portion and substantially orthogonal to the first portion.

10. The fixing device according to claim 9, wherein the second coupling feature comprises: a base portion fixedly coupled to the hub base; a pair of side portions coupled to respective opposite longitudinal ends of the base portion and extending from the respective opposite longitudinal ends, wherein each side portion of the pair of side portions is substantially orthogonal to the base portion; and a pair of retaining portions substantially parallel to the base portion, wherein each retaining portion of the pair of retaining portions is coupled to a respective side portion of the pair of side portions distally of the base portion and extends from the respective side portion; wherein the base portion, the pair of side portions and the pair of retaining portions define a slot therebetween, and wherein the slot at least partially receives the second portion of the first coupling feature therein such that the second portion at least partially and slidably engages with the base portion, the pair of side portions and the pair of retaining portions.

11. The fixing device according to claim 1, wherein the hub base comprises: a hub receiving portion configured to removably fix the catheter hub therein; and a cannula receiving portion disposed adjacent to the hub receiving portion and configured to at least partially and removably fix the cannula therein.

12. The fixing device according to claim 11, wherein the hub assembly further comprises: A hub cap configured to be removably coupled to the hub receiving portion of the hub base, wherein when the hub cap is coupled to the hub receiving portion, the hub cap and the hub receiving portion removably fix the catheter hub therebetween; and An insertion cannula cap separate from the hub cap and configured to be removably coupled to the cannula receiving portion of the hub base, wherein when the insertion cannula cap is coupled to the cannula receiving portion, the insertion cannula cap and the cannula receiving portion removably fix the insertion cannula therebetween.

13. The fixing device according to claim 12, wherein the hub cap is pivotally coupled to the hub receiving portion at a first end of the hub base and is pivotally movable relative to the hub receiving portion independently of the insertion cannula cap, and wherein the hub cap is removably coupled to the hub receiving portion at a second end of the hub base, the second end being opposite the first end of the hub base.

14. The fixing device according to claim 12, wherein the insertion cannula cap is pivotally coupled to the cannula receiving portion at a first end of the hub base and is pivotally movable relative to the cannula receiving portion independently of the hub cap, and wherein the insertion cannula cap is removably coupled to the cannula receiving portion at a second end of the hub base, the second end being opposite the first end of the hub base.

15. The fixing device according to claim 12, wherein when the hub cap is detached from the hub receiving portion and the catheter hub is removed from the hub receiving portion, the insertion cannula remains removably fixed to the cannula receiving portion.

16. The fixing device according to claim 12, wherein the cannula receiving portion includes a first slot configured to at least partially receive the insertion cannula therein, wherein the insertion cannula cap includes a second slot, wherein when the insertion cannula cap is removably coupled to the cannula receiving portion, the second slot is at least partially aligned with the first slot, and wherein when the insertion cannula is inserted into the first slot and the insertion cannula cap is removably coupled to the cannula receiving portion, the first slot and the second slot together and at least partially receive the insertion cannula therebetween such that the insertion cannula is removably fixed to the cannula receiving portion.

17. The fixing device according to claim 16, the fixing device further including a first sleeve at least partially received within the first slot and a second sleeve at least partially received within the second slot, and wherein when the insertion cannula is inserted into the first slot and the insertion cannula cap is removably coupled to the cannula receiving portion, each of the first sleeve and the second sleeve engages the insertion cannula in a friction manner such that the insertion cannula is removably fixed between the cannula receiving portion and the insertion cannula cap.

18. The fixing device according to claim 11, wherein the hub receiving portion includes a peripheral wall that separates the hub receiving portion from the cannula receiving portion, wherein the peripheral wall includes a cannula opening extending therethrough, and wherein the cannula opening is configured to at least partially receive the cannula passing therethrough.

19. The fixing device according to claim 18, wherein the peripheral wall further includes at least one lumen opening extending therethrough and disposed opposite to the cannula opening, and wherein the at least one lumen opening is configured to at least partially receive at least one lumen of the catheter assembly passing therethrough.

20. The fixing device according to claim 1, wherein the base assembly further comprises: a base, the base including a first main surface fixedly coupled to the base mount on opposite sides of the slider track and a second main surface opposite to the first main surface; and an adhesive layer, the adhesive layer being at least partially disposed on the second main surface and configured to detachably fix the base assembly to the skin of the patient.

21. The fixing device according to claim 20, wherein the adhesive layer includes a stretch-release adhesive.

22. A kit, the kit comprises: a catheter assembly, the catheter assembly including: a catheter hub; at least one lumen extending from the catheter hub; and a cannula extending from the catheter hub on an opposite side of the at least one lumen and configured to be inserted into the skin of a patient at an insertion site; and a fixing device for the catheter assembly, the fixing device including: a base assembly configured to be detachably fixed to the skin of the patient, the base assembly including: a base mount; and a slider track fixedly coupled to the base mount and including a first coupling feature, wherein the first coupling feature includes a first arcuate shape along the length of the first coupling feature; and a hub assembly slidably coupled to the base assembly, the hub assembly including: a hub slider including a second coupling feature complementary to the first coupling feature, wherein the second coupling feature includes a second arcuate shape along the length of the second coupling feature, the second arcuate shape being similar to the first arcuate shape of the slider track, wherein the length of the second coupling feature is less than the length of the first coupling feature, and wherein the second coupling feature at least partially and slidably engages the first coupling feature such that the hub slider can slide relative to the base assembly along the slider track; and a hub base fixedly coupled to and disposed on the hub slider on opposite sides of the slider track, the hub base being configured to be detachably fixed to the catheter hub and the cannula; wherein the hub assembly can be slidably moved relative to the base assembly along the slider track to a desired position.

23. The kit according to claim 22, wherein the second coupling feature engages at least partially and frictionally with the first coupling feature such that the hub slider is stationary relative to the slider track when a sliding force on the hub assembly is removed.

24. The kit according to claim 22, wherein the slider track further comprises a plurality of locking portions disposed on the first coupling feature at a corresponding plurality of locking positions along a length of the first coupling feature, wherein each of the plurality of locking portions is configured to removably engage with the second coupling feature to lock the hub slider to the slider track at a corresponding locking position, and wherein the hub assembly is configured to be fixed at a selected one of the plurality of locking positions.

25. The kit according to claim 22, wherein the slider track further comprises a pair of end walls circumferentially spaced from each other and disposed at respective opposite ends of the slider track, and wherein each of the pair of end walls is configured to engage with the hub slider to limit sliding movement of the hub slider at the respective opposite ends of the slider track.

26. The kit according to claim 22, wherein the slider track has a first center of curvature, wherein the hub slider has a second center of curvature that coincides with the first center of curvature of the slider track, and wherein the hub assembly is capable of rotating about a pivot axis passing through the first center of curvature as the hub slider slides along the slider track.

27. The kit according to claim 26, wherein each of the first center of curvature and the second center of curvature is disposed at the insertion site such that the pivot axis passes through the insertion site.

28. The kit according to claim 26, wherein a minimum distance defined between the pivot axis and the hub base is constant at any position of the hub assembly along the slider track.

29. The kit according to claim 26, wherein an exposed length of the cannula between the hub base and the insertion site is substantially constant at any position of the hub assembly along the slider track.

30. The kit according to claim 22, wherein the base mount includes an arcuate guide rail spaced from the slider track, wherein the hub base includes an engagement feature configured to slidably engage with the guide rail of the base mount, and wherein the engagement feature slides along the guide rail correspondingly as the hub slider slides relative to the slider track.

31. The kit according to claim 22, wherein the first coupling feature comprises: a first portion fixedly coupled to the base mount and extending from the base mount; and a second portion coupled to the first portion and substantially orthogonal to the first portion.

32. The kit according to claim 31, wherein the second coupling feature comprises: a base portion fixedly coupled to the hub base; a pair of side portions coupled to respective opposite longitudinal ends of the base portion and extending from the respective opposite longitudinal ends, wherein each side portion of the pair of side portions is substantially orthogonal to the base portion; and a pair of retaining portions substantially parallel to the base portion, wherein each retaining portion of the pair of retaining portions is coupled to and extends from a respective side portion of the pair of side portions distal to the base portion; wherein the base portion, the pair of side portions, and the pair of retaining portions define a slot therebetween, and wherein the slot at least partially receives the second portion of the first coupling feature such that the second portion at least partially and slidably engages the base portion, the pair of side portions, and the pair of retaining portions.

33. The kit according to claim 22, wherein the hub base comprises: a hub receiving portion configured to removably secure the catheter hub therein; and a cannula receiving portion disposed adjacent the hub receiving portion and configured to at least partially and removably secure the cannula therein.

34. The kit according to claim 33, wherein the hub assembly further comprises: a hub cap configured to removably couple to the hub receiving portion of the hub base, wherein when the hub cap is coupled to the hub receiving portion, the hub cap and the hub receiving portion removably secure the catheter hub therebetween; and a cannula cap separate from the hub cap and configured to removably couple to the cannula receiving portion of the hub base, wherein when the cannula cap is coupled to the cannula receiving portion, the cannula cap and the cannula receiving portion removably secure the cannula therebetween.

35. The kit according to claim 34, wherein the hub cap is pivotally coupled to the hub receiving portion at a first end of the hub base and is pivotally movable relative to the hub receiving portion independent of the cannula cap, and wherein the hub cap is removably coupled to the hub receiving portion at a second end of the hub base, the second end being opposite the first end of the hub base.

36. The kit according to claim 34, wherein the cannula cap is pivotally coupled to the cannula receiving portion at a first end of the hub base and is pivotally movable relative to the cannula receiving portion independent of the hub cap, and wherein the cannula cap is removably coupled to the cannula receiving portion at a second end of the hub base, the second end being opposite the first end of the hub base.

37. The kit according to claim 34, wherein when the hub cap is removed from the hub receiving portion and the catheter hub is removed from the hub receiving portion, the cannula remains removably secured to the cannula receiving portion.

38. The kit according to claim 34, wherein the cannula receiving portion includes a first slot configured to at least partially receive the cannula therein, wherein the cannula cap includes a second slot, and wherein when the cannula cap is removably coupled to the cannula receiving portion, the second slot is at least partially aligned with the first slot, and wherein when the cannula is inserted into the first slot and the cannula cap is removably coupled to the cannula receiving portion, the first slot and the second slot together and at least partially receive the cannula therebetween such that the cannula is removably fixed to the cannula receiving portion.

39. The kit according to claim 38, wherein the fixing means further includes a first sleeve at least partially received within the first slot and a second sleeve at least partially received within the second slot, and wherein when the cannula is inserted into the first slot and the cannula cap is removably coupled to the cannula receiving portion, each of the first sleeve and the second sleeve engages the cannula in a friction manner such that the cannula is removably fixed between the cannula receiving portion and the cannula cap.

40. The kit according to claim 33, wherein the hub receiving portion includes a peripheral wall separating the hub receiving portion from the cannula receiving portion, wherein the peripheral wall includes a cannula opening extending therethrough, and wherein the cannula opening is configured to at least partially receive the cannula therethrough.

41. The kit according to claim 40, wherein the peripheral wall further includes at least one lumen opening extending therethrough and disposed opposite the cannula opening, and wherein the at least one lumen opening is configured to at least partially receive the at least one lumen of the catheter assembly therethrough.

42. The kit according to claim 22, wherein the base assembly further includes: a base including a first main surface fixedly coupled to the base mount on opposite sides of the slider track and a second main surface opposite the first main surface; and an adhesive layer at least partially disposed on the second main surface and configured to removably fix the base assembly to the skin of the patient.

43. The kit according to claim 42, wherein the adhesive layer includes a stretch-release adhesive.

44. A method of using a fixing device with a catheter assembly having a catheter hub and a cannula inserted into the skin of a patient at an insertion site, the fixing device including: a base assembly configured for removable fixation to the skin of the patient; and a hub assembly slidably coupled to the base assembly and configured to removably fix to the catheter hub and the cannula, the base assembly including a slider track, the hub assembly including a hub slider capable of sliding along the slider track of the base assembly, the method including: removably fixing the base assembly to the skin of the patient; Detachably fix the catheter hub and the cannula of the catheter assembly to the hub assembly; Slide the hub assembly along the slider track relative to the base assembly to a desired position, wherein the exposed length of the cannula between the hub assembly and the insertion site remains substantially constant at any position of the hub assembly along the slider track; and When positioning the hub assembly at the desired position, perform a maintenance procedure near the insertion site.

45. The method according to claim 44, wherein detachably fixing the base assembly to the patient's skin includes detachably bonding the base of the base assembly to the patient's skin via an adhesive.

46. The method according to claim 44, wherein detachably fixing the cannula of the catheter assembly to the hub assembly comprises: Insert the catheter hub into the hub base of the hub assembly; and Removably couple a hub cap to the hub base such that the catheter hub is fixed between the hub base and the hub cap.

47. The method according to claim 46, wherein detachably fixing the cannula of the catheter assembly to the hub assembly further comprises: Insert the cannula into a first slot of the cannula receiving portion of the hub assembly, the cannula receiving portion being disposed adjacent to the hub base; and Removably couple a cannula cap to the cannula receiving portion such that the first slot of the cannula receiving portion and the second slot of the cannula cap together and at least partially receive the cannula therebetween.

48. The method according to claim 47, the method further comprises: Remove the catheter hub from the hub base while the cannula remains fixed to the cannula receiving portion.

49. The method according to claim 48, wherein removing the catheter hub from the hub base includes disassembling the hub cap from the hub base while the cannula cap remains coupled to the cannula receiving portion.

Images