WO2026006384A1 - Enteral feeding system with variable feeding capabilities - Google Patents

Abstract

An enteral feeding system is provided and includes a nutrition adapter, a first tube coupled to the nutrition adapter, a second tube to be inserted into a peristaltic pump coupled to the first tube, a third tube coupled to the second tube; and a feeding tube adapter coupled to the third tube. In addition, the first tube comprises a first maximum inner diameter that is greater than a second maximum diameter of the second tube and a third maximum diameter of the third tube.

Description

ENTERAL FEEDING SYSTEM WITH VARIABLE FEEDING CAPABILITIES

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application claims the benefit of U.S. Provisional Application No. 63/665,414, filed June 28, 2024, the contents of which are incorporated herein by reference in its entirety.

FIELD OF THE DISCLOSURE

[0002] The subject matter of the present disclosure relates generally to an enteral feeding system capable of providing a variety of nutrition with a variety of viscosities or thicknesses.

BACKGROUND

[0003] There is a growing recognition of the benefits of real food blends for those who must use feeding tubes, specifically gastric or G-tubes. Blended food diets have been associated with reduced symptoms of gastrointestinal intolerance, including reflux and constipation, as well as social benefits such as participating in family mealtime and enhanced feelings of normalcy. Unfortunately for those who feed through tubes and require a means of continuous feeding using pumps, very few options exist for the delivery of blended food using feeding pumps.

[0004] Existing pumps are developed and performance-tuned for formula, which is a controlled and pre-prepared food that has a consistency similar to water. For these pumps, the thicker blended foods are often contraindicated for use, as they may clog up pump tubing. The thicker food may also cause highly inaccurate feed rates. The current state sees users modifying giving sets to be able to deliver blended food when the desire for a blended diet outweighs the effort and perceived risks of using the pumps contrary to guidance.

[0005] The technical challenges of designing a pump to be compatible with formula and thicker feeds concern the pressures generated when trying to drive these feeds through giving set tubing. Negative pressure is required to pull the feed from the feeding bag through the upstream tubing into the peristaltic tubing, and positive pressure drives the feed through downstream tubing into the percutaneously placed feeding tube of the user. The pressure requirements for formula and thick feed can vary widely, and create the competing situations that must be considered when evaluating how to design a pump to work over a large pressure range.

[0006] Accordingly, improved systems for the administration of enteral feeding are desired in the art. In particular, an enteral feeding system that addresses the aforementioned issues would be advantageous. SUMMARY

[0007] Objects and advantages of the disclosure will be set forth in part in the following description or may be obvious from the description, or may be learned through practice of the disclosure.

[0008] In accordance with one implementation, an enteral feeding system is provided. The enteral feeding system includes a nutrition adapter including a coupling configured to couple to a source of enteral nutrition. The enteral feeding system also includes a first tube having a proximal end and a distal end, and a lumen extending between the proximal end and the distal end where the proximal end is coupled to the coupling of the nutrition adapter downstream of the coupling. The enteral feeding system also includes a second tube to be inserted into a peristaltic pump having a proximal end and a distal end, and a lumen extending between the proximal end and the distal end where the proximal end is coupled to the distal end of the first tube. The enteral feeding system also includes a third tube having a proximal end and a distal end, and a lumen extending between the proximal end and the distal end where the proximal end is coupled to the distal end of the second tube. The enteral feeding system also includes a feeding tube adapter coupled to the distal end of the third tube where the feeding tube adapter includes a coupling configured to be coupled to a feeding tube receiving port where the feeding tube adapter includes a lumen fluidly coupling the lumen of the third tube with a lumen of the feeding tube receiving port. In addition, with regard to the first, second, and third tubes, the first tube comprises a first maximum inner diameter that is greater than a second maximum diameter of the second tube and a third maximum diameter of the third tube.

[0009] In an implementation of the enteral feeding system, the second maximum diameter is less than the first maximum diameter and the third maximum diameter.

[0010] In another implementation of the enteral feeding system, the first maximum inner diameter comprises a range from 0.12 inches to 0.31 inches.

[0011] In another implementation of the enteral feeding system, the first tube, the second tube, or the third tube includes a non-circular profile.

[0012] In another implementation of the enteral feeding system, the non-circular profile includes protrusions along the outer wall of the first tube, the second tube, or the third tube.

[0013] In another implementation of the enteral feeding system, the protrusions include at least one of spikes, prongs, barbs, or combinations thereof. [0014] In another implementation the enteral feeding system further includes the peristaltic pump into which the second tube is configured to inserted, wherein the peristaltic pump comprises at least one roller and an adjustable backing configured to adjustably compress the second tube against the at least one roller.

[0015] In another implementation of the enteral feeding system, the adjustable backing defines a diameter between a center of the least one roller and a wall of the adjustable backing configured to contact the second tube. Movement of the adjustable backing adjusts the diameter defined between the center of the least one roller and the wall of the adjustable backing, and the diameter is in a range from 50% to 150% of the second maximum inner diameter of the second tube.

[0016] In another implementation of the enteral feeding system, the adjustable backing includes a first portion and a second portion. The first portion is positioned at one end where the second tube is configured to be inserted and the second portion is positioned at an opposite end where the second tube is configured to be inserted.

[0017] In another implementation of the enteral feeding system, the first portion and the second portion each comprise an angled section and an engagement surface. A first angle is defined between the angled section and the engagement surface of the first portion and a second angle is defined between the angled section and the engagement surface. The first angle is different from the second angle.

[0018] In another implementation of the enteral feeding system, the first angle is in a range from 100° to 135°, and wherein the second angle is in a range from 140° to 175°.

[0019] In another implementation of the enteral feeding system, the engagement surface of the first portion and the second portion are each configured to contact the second tube, wherein the engagement surface of the first portion defines a first length and the engagement surface of the second portion defines a second length, wherein the first length is different than the second length.

[0020] In another implementation of the enteral feeding system, the peristaltic pump includes an actuator or a controller where the actuator or controller is configured to implement a first mode and a second mode where the first mode includes an adjustment to the diameter of the adjustable backing to less than 100% of the maximum inner diameter of the second tube where the second mode includes an adjustment to the diameter of the adjustable backing to greater than 100% of the maximum inner diameter of the second tube. [0021] In another implementation the enteral feeding system further includes a slide where in the first mode the slide is configured to pull the second tube against the at least one roller.

[0022] In another implementation of the enteral feeding system, the peristaltic pump includes the controller where the enteral feeding system further includes a pressure sensor communicatively coupled with an interior of the second tube where the controller is configured to implement the first mode and the second more based upon a pressure from the interior of the second tube.

[0023] In another implementation of the enteral feeding system, the controller is configured to detect occlusions within the second tube based on the pressure of the interior of the second tube.

[0024] In another implementation of the enteral feeding system, a range of values at which an occlusion is detected is greater for the first mode compared to the second mode.

[0025] In another implementation of the enteral feeding system, the first mode includes operating the peristaltic pump at a continuous speed and a discontinuous duty cycle where the second mode includes operating the peristaltic pump at a discontinuous speed and a continuous duty cycle.

[0026] In another implementation, an enteral feeding system is provided. The enteral feeding system includes a nutrition adapter including a coupling configured to couple to a source of enteral nutrition. The enteral feeding system also includes a first tube having a proximal end and a distal end, and a lumen extending between the proximal end and the distal end where the proximal end is coupled to the coupling of the nutrition adapter downstream of the coupling. The enteral feeding system also includes a second tube to be inserted into a peristaltic pump having a proximal end and a distal end, and a lumen extending between the proximal end and the distal end where the proximal end is coupled to the distal end of the first tube. The enteral feeding system also includes a third tube having a proximal end and a distal end, and a lumen extending between the proximal end and the distal end where the proximal end is coupled to the distal end of the second tube. The enteral feeding system also includes a feeding tube adapter coupled to the distal end of the third tube where the feeding tube adapter includes a coupling configured to be coupled to a feeding tube receiving port where the feeding tube adapter includes a lumen fluidly coupling the lumen of the third tube with a lumen of the feeding tube receiving port. In addition, with regard to the first, second, and third tubes, the first tube, the second tube, or the third tube includes a non-circular profile. [0027] In another implementation, a method of forming an enteral feeding tube is provided. The method includes providing a nutrition adapter including a coupling configured to couple to a source of enteral nutrition. The method also includes attaching a first tube having a proximal end and a distal end to the nutrition adapter, and a lumen extending between the proximal end and the distal end where the proximal end is coupled to the coupling of the nutrition adapter downstream of the coupling. The method also includes attaching a second tube to be inserted into a peristaltic pump having a proximal end and a distal end to the first tube, and a lumen extending between the proximal end and the distal end where the proximal end is coupled to the distal end of the first tube. The method also includes attaching a third tube having a proximal end and a distal end to the second tube, and a lumen extending between the proximal end and the distal end where the proximal end is coupled to the distal end of the second tube. The method also includes attaching a feeding tube adapter coupled to the distal end of the third tube to the third tube where the feeding tube adapter includes a coupling configured to be coupled to a feeding tube receiving port where the feeding tube adapter includes a lumen fluidly coupling the lumen of the third tube with a lumen of the feeding tube receiving port. In addition, with regard to the first, second, and third tubes, the first tube comprises a first maximum inner diameter that is greater than a second maximum diameter of the second tube and a third maximum diameter of the third tube.

[0028] These and other features, aspects, and advantages of the present disclosure will become better understood with reference to the following description and appended claims. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate implementations of the disclosure and, together with the description, serve to explain the principles of the disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

[0029] A full and enabling disclosure of the present disclosure, including the best mode thereof, directed to one of ordinary skill in the art, is set forth in the specification, which makes reference to the appended figures, in which:

[0030] FIG. 1 illustrates a perspective view of an enteral feeding system according to one particular implementation of the present disclosure;

[0031] FIG. 2A illustrates a perspective view of a first tube of an enteral feeding system according to one particular implementation of the present disclosure; [0032] FIG. 2B illustrates a perspective view of a second tube of an enteral feeding system according to one particular implementation of the present disclosure;

[0033] FIG. 2C illustrates a perspective view of a third tube of an enteral feeding system according to one particular implementation of the present disclosure;

[0034] FIG. 3 illustrates a perspective view of the enteral feeding system of FIG. 1 , particularly showing the enteral feeding system being used with a peristaltic pump according to one particular implementation of the present disclosure;

[0035] FIG. 4 illustrates an internal, perspective view of the enteral feeding system of FIG. 1 used within the peristaltic pump of FIG. 3 according to one particular implementation of the present disclosure;

[0036] FIG. 5 illustrates a cross-sectional view of a tube of an enteral feeding system according to one particular implementation of the present disclosure;

[0037] FIG. 6 illustrates a graph representing load versus crosshead as it relates to the tube of FIG. 5 according to one particular implementation of the present disclosure;

[0038] FIG. 7 illustrates a schematic view of an adjustable backing positioned with an enteral feeding tube according to one particular implementation of the present disclosure;

[0039] FIG. 8 illustrates a graph representing load versus crosshead as it relates to the adjustable backing of FIG. 7 according to one particular implementation of the present disclosure; and

[0040] FIG. 9 illustrates a flow chart of a method for delivering enteral feed to a patient in accordance with a particular implementation of the present disclosure.

DETAILED DESCRIPTION

[0041] Reference now will be made in detail to implementations of the disclosure, one or more examples of which are illustrated in the drawings. Each example is provided by way of explanation of the disclosure, not limitation of the disclosure. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present disclosure without departing from the scope or spirit of the disclosure. For instance, features illustrated or described as part of one implementation can be used with another implementation to yield a still further implementation. Thus, it is intended that the present disclosure covers such modifications and variations as come within the scope of the appended claims and their equivalents. The detailed description uses numerical and letter designations to refer to features in the drawings. Like or similar designations in the drawings and description have been used to refer to like or similar parts of the disclosure.

[0042] As used herein, the terms “first,” “second,” and “third” may be used interchangeably to distinguish one component from another and are not intended to signify the location or importance of the individual components. The singular forms “a,” “an,” and “the” include plural references unless the context clearly dictates otherwise. The terms “coupled,” “fixed,” “attached to,” and the like refer to both direct coupling, fixing, or attaching, as well as indirect coupling, fixing, or attaching through one or more intermediate components or features unless otherwise specified herein. As used herein, the terms “comprises,” “comprising,” “includes,” “including,” “has,” “having” or any other variation thereof, are intended to cover a nonexclusive inclusion. For example, a process, method, article, or apparatus that comprises a list of features is not necessarily limited only to those features but may include other features not expressly listed or inherent to such process, method, article, or apparatus. Further, unless expressly stated to the contrary, “or” refers to an inclusive- or and not to an exclusive- or. For example, a condition A or B is satisfied by any one of the following: A is true (or present) and B is false (or not present), A is false (or not present) and B is true (or present), and both A and B are true (or present).

[0043] Terms of approximation, such as “about,” “generally,” “approximately,” or “substantially,” include values within ten percent greater or less than the stated value. When used in the context of an angle or direction, such terms include within ten degrees greater or less than the stated angle or direction. For example, “generally vertical” includes directions within ten degrees of vertical in any direction, e.g., clockwise, or counterclockwise. Further, when a plurality of ranges is provided, any combination of a minimum value and a maximum value described in the plurality of ranges is contemplated by the present disclosure. For example, if ranges of “from about 20% to about 80%” and “from about 30% to about 70%” are described, a range of “from about 20% to about 70%” or a range of “from about 30% to about 80%” are also contemplated by the present disclosure.

[0044] As will be used herein, the terms proximal and distal each refer to a point of reference in relation to a particular object. Specifically, the term proximal end is defined as being situated nearer the object of reference, while the term distal is defined as being situated further from the object of reference. As described herein, the object of reference is the source of nutrition. Thus, an object that is proximal end is closer to the source of nutrition, while an object that is distal is further from the source of nutrition. [0045] Generally speaking, the present disclosure is directed to an enteral feeding system having a nutrition adapter, a first tube, a second tube, a third tube, and a feeding tube adapter. Each of the components defines a fluid connection that enables the delivery of enteral nutrition from the nutrition adapter to the feeding tube adapter. The first tube, second tube, and third tube each define a specific inner diameter. In particular, the first tube has a larger maximum inner diameter than the inner diameter of the second tube and the third tube. In addition, the second tube also defines a larger maximum inner diameter than the third tube. Thus, it can be understood that the enteral feeding system has a variable inner diameter that reduces from the nutrition adapter to the feeding tube adapter. As a consequence of the variable inner diameter, the enteral feeding system may provide numerous benefits and advantages as will be described in further detail hereinbelow. In addition, the present disclosure is also directed to a method of forming an enteral feeding tube, such as the enteral feeding tube described above. The specific features of the enteral feeding tube and the method of forming the enteral feeding tube may be better understood concerning FIGS. 1-9.

[0046] Referring now to FIG. 1, one implementation of an enteral feeding system 10 is shown. The enteral feeding system 10 includes a nutrition adapter 12 configured to be coupled to a nutrition source (not shown), a first tube 14, a second tube 15 configured to be used with a peristaltic pump (see FIG. 3), a third tube 16, and a feeding tube adapter 17 configured to be coupled directly with an indwelling feeding tube (not shown). The enteral feeding system 10 may additionally include a flow restriction mechanism 18 configured to enable or occlude the flow of nutrition through the first and third tubes 14, 16. For instance, the flow restriction mechanism 18 may be formed as a clamp.

[0047] The nutrition adapter 12 has a body 22 extending from a proximal end 24 to a distal end 26. The proximal end 24 includes a nutrition connector 28 configured and designed to complementarily attach directly to a connector of a source of nutrition (not shown). The source of nutrition may be a bag, a carton formed from plastic, cardboard, or other suitable material, a reusable nutrition container (e.g., formed from plastic, thermoplastic, or glass), or any other container for nutrition having a cooperating connector. In particular, the source of nutrition to which the nutrition adapter 12 is designed to be coupled is intended to be an original source of nutrition, e.g., nutritional formula in a single-use package for bolus feeding as packaged by a manufacturer or source; however, reusable containers may also be coupled to the nutrition adapter 12. [0048] At the distal end 26 of the nutrition adapter 12, the body 22 includes a tube coupling 42. The tube coupling 42 includes a cylindrical outer surface 44 having a diameter configured to correspond to an inner diameter or outer diameter of the first tube 14. Thus, the tube coupling 42 may be inserted into the first tube 14 or the tube coupling 42 may surround an outer diameter of the first tube 14. In either instance, a distal end 54 of the first tube 14 is coupled to the nutrition adapter 12 downstream of the tube coupling 42. Further, the tube coupling 42 and the first tube 14 may be permanently, i.e., irremovably, coupled together. For instance, the tube coupling 42 and the first tube 14 may be solvent bonded, adhesively bonded, or coupled by any other suitable means such that the tube coupling 42 and the first tube 14 may not be separated without destroying the integrity of the first tube 14. As a result of this bonding, the tube coupling 42 and the first tube 14 may be formed as one piece when used in the enteral feeding system 10.

[0049] In any instance, the body 22 of the nutrition adapter 12 includes a nutrition lumen extending therethrough from the nutrition connector 28 to the tube coupling 42. In this arrangement, when the nutrition adapter 12 is connected to a source of nutrition 30, the nutrition fluid can flow from the source of nutrition 30 through the length of the body 22 from the nutrition connector 28 through the tube coupling 42 and into the first tube 14.

[0050] The first, second, and third tubes 14, 15, 16 each have a body 50a, 50b, 50c that extends from a proximal end 52a, 52b, 52c to a distal end 54a, 54b, 54c. Further, as shown in FIGS 2A-2C, the body 50a, 50b, 50c of the first, second, and third tubes 14, 15, 16 include an outer wall 56a, 56b, 56c, and an inner wall 58a, 58b, 58c. The bodies 50a, 50b, 50c of the first, second, and third tubes 14, 15, 16 may be formed from any suitable flexible material used for the delivery of nutritional fluid, including but not limited to flexible polyvinyl chloride (PVC), silicone, polyurethane, and other thermoplastic elastomers.

[0051] The inner walls 58a, 58b, 58c may be concentrically disposed within the outer walls 56a, 56b, 56c. A lumen 60a, 60b, 60c for each of the first, second, and third tubes 14, 15, 16 is defined by the inner walls 58a, 58b, 58c and extends along the length of the bodies 50a 50b, 50c from the proximal ends 52a, 52b, 52c to the distal ends 54a, 54b, 54c. The bodies 50a, 50b, 50c have an outer diameter 62a, 62b, 62c defined by the outer walls 56a, 56b, 56c and an inner diameter 64a, 64b, 64c, also defined as a lumen diameter, defined by the inner walls 58a, 58b, 58c (see FIG. 2A-2C).

[0052] For example, as shown in FIGS. 2A-2C, the outer diameters 62a, 62b, 62c of the first, second, and third tubes 14, 15, 16 are different from each other. Specifically, the first tube 14 has a larger maximum diameter than the second tube 15 and the third tube 16. More particularly, the maximum inner diameter 64a of the first tube 14 is larger than the maximum inner diameters 64b, 64c of the second and third tubes 15, 16. In addition, the maximum inner diameter 64b of the second tube 15 may be smaller than the maximum inner diameter of 64c of the first tube 14 and the third tube 16. For example, the maximum inner diameters 64a, 64b, 64c may define a ratio. Specifically, the maximum inner diameter 64a of the first tube 14, the maximum inner diameter 64b of the second tube 15, and the maximum inner diameter 64c of the third tube 16 may define a range from 5:1:3 to 2: 1:1.5. Thus, in such an implementation, the maximum inner diameter 64a of the first tube 14 may be 5 to 2 times greater than the maximum inner diameter 64c of the second tube 15, and the maximum inner diameter 64a of the third tube 16 may be 3 to 1.5 times greater than the maximum inner diameter 64c of the second tube 15.

[0053] Said differently, the first tube 14, the second tube 15, and the third tube 16 may each define a specific diameter. For example, the maximum inner diameter 64a of the first tube 14 may range from 0.12 inches (“) to 0.31”. In some implementations, the range of the maximum inner diameter 64a may be from 0.15” to 0.25”. In some implementations, the range of the maximum inner diameter 64a may be from 0.175” to 0.205”. Further, the maximum inner diameter 64b of the second tube 15 may be any value lower than the maximum inner diameter 64a of the first tube 14 and range from 0.06” to 0.18”. In some implementations, the range of the maximum inner diameter 64b may be from 0.075” to 0. 15”. In some implementations, the range of the maximum inner diameter 64b may be from 0.09” to 0. 12”. Further, the maximum inner diameter 64c of the third tube 16 may be any value lower than the maximum inner diameter 64a of the first tube 14 and range from 0.07” to 0.21”. In some implementations, the range of the maximum inner diameter 64c may be from 0.9” to 0.16”. In some implementations, the range of the maximum inner diameter 64c may be from 0.11” to 0.140”. In addition, the thickness Tl, T2, T3 of the bodies 50a, 50b, 50c may also be different for the first, second, and third tubes 14, 15, 16, respectively. For example, the first tube 14 may have a smaller thickness Tl than either the thicknesses T2, T3 of the second tube 15 and third tube 16. Further, the thickness T2 of the body 50b may be larger than the thickness Tl of the first tube 14 and the thickness T3 of the third tube 16.

[0054] As a result, a flow rate of nutrition through the first, second, and third tubes 14, 15, 16 can be determined at least in part by the inner diameters 64a, 64b, 64c of the first, second, and third tubes 14, 15, 16 and a length 66, 67 extending from the proximal ends 52a, 52b, 52c to the distal ends 54a, 564b, 54c of the tubes 14, 15, 16. Further, the flow rate of nutrition may also be determined based on the thicknesses Tl, T2, T3 of the first, second, and third tubes T3.

[0055] In general, the larger the inner diameters 64a, 64b, 64c the higher the flow rate of nutrition through the first, second, and third tubes 14, 15, 16. However, the flow rate of nutrition through the first, second, and third tubes 14, 15, 16 may be influenced by additional factors, including but not limited to the length and diameter of the nutrition lumen through the body 22 of the nutrition adapter 12, the presence of a flow restriction mechanism 18, the viscosity and/or composition of the nutrition delivered through the first, second, and third tubes 14, 15, 16, and other factors. In addition, in general, the smaller the thickness Tl, T2, T3 of the first, second, and third tubes 14, 15, 16, the higher the flow rate of nutrition through the first, second, and third tubes 14, 15, 16.

[0056] Returning to FIG. 1, in an implementation, a cartridge 99 may be attached with the second tube 15 between the first and third tubes 14, 16. The cartridge 99 may be integrated with the second tube 15. However, the second tube 15 may also be separate from the cartridge 99 or the cartridge 99 may not be included. In either of the implementations, the second tube 15 is attached to the first and third tubes 14, 16.

[0057] If the cartridge 99 is included, the cartridge 99 may be located between the distal end 54a of the first tube 14 and the proximal end 52c of the third tube 16. The cartridge 99 can include tube couplings 90, 91. The tube couplings 90, 91 may each include a cylindrical outer surface 92, 93 having a diameter 94, 95 configured to correspond to an inner diameter or outer diameter of the first and third tubes 14, 16. In addition, the tube couplings 90, 91 may be inserted into the first and third tubes 14, 16, or the tube couplings 90, 91 may surround an outer diameter of the first and third tubes 14, 16. In either instance, one end of the first tube 14 and one end of the third tube 16 are coupled to the cartridge 99. Further, the tube couplings 90, 91 and the first and third tubes 14, 16 may be permanently, i.e., irremovably, coupled together. For instance, the tube couplings 90, 91 and the first and third tubes 14, 16 may be solvent bonded, adhesively bonded, or coupled by any other suitable means such that the tube couplings 90, 91 and the first tube 14 may not be separated without destroying the integrity of the first and third tubes 14, 16. Consequently, like the tube coupling 42 and the first tube 14, the tube couplings 90, 91 and the first and third tubes 14, 16 may be formed as one piece when used in the enteral feeding system 10.

[0058] Referring now to FIG. 3, the second tube 15 and/or the cartridge 99 is configured to be inserted into a peristaltic pump 130. For example, the shape of the frame 98 of the cartridge 99 may be customized to fit within any known peristaltic pump used for enteral feeding. In an implementation, the cartridge 99 can include the second tube 15 which can extend in a U-shape from a cartridge inlet 100 to a cartridge outlet 101. However, as stated above, the second tube 15 may also be separate from the cartridge 99. The other portions of the cartridge 99, such as the frame 98 and the cartridge inlet/outlet 100, 101, may be formed from another type of material. For example, the frame 98 and the cartridge inlet/outlet 100, 101 may be formed from a rigid material including but not limited to any suitable type of thermoplastic.

[0059] Returning back to FIG. 1, the cartridge inlet 100 and the cartridge outlet 101 are configured for coupling to the first and third tubes 14, 16 at the tube couplings 90, 91. Specifically, the cartridge inlet 100 and the cartridge outlet 101 can include the tube couplings 90, 91, respectively. The tube couplings 90, 91 can be connected to the first and third tubes 14, 16. Further, the cartridge inlet 100 and the cartridge outlet 101 can include connecting portions 102, 103 between the tube couplings 90, 91 and the second tube 15. The connecting portions 102, 103 can include tapered portions 104, 105 and longitudinal portions 106, 107. The tapered portions 104, 105 may have a similar diameter as the cartridge tube 15 at first ends 108, 109 and a wider, expanded diameter at second ends 110, 111. The longitudinal portions 106, 107 may have a diameter approximately the same as the tube couplings 90, 91 such that the tube couplings 90, 91 fit around or fit within the longitudinal portions 106, 107. The cartridge 99 may also include securing portions 112, 114. The securing portions 112, 114 may be configured to secure the second tube 15 into a U-shape. Particularly, the securing portions 112, 114 may be placed such that the second tube 15 is bent into a U-shape when inserted into the securing portions 1 12, 114.

[0060] In an implementation, the enteral feeding system 10 may be formed as a single unit. Stated differently, the nutrition adapter 12, the first tube 14, the second tube 15, the third tube 16, and the feeding tube adapter 17 may be irremovably coupled together such that none of the components can be separated from each other without destroying the system 10 and rendering the system 10 inoperable and unsuited for its intended purpose of the delivery of an enteral feed. For example, the enteral feeding system 10 can be welded together using a technique such as ultrasonic welding or thermal welding. Consequently, the nutrition adapter 12, the first tube 14, the second tube 15, the third tube 16, and the feeding tube adapter 17 may be formed together as one piece when used in the enteral feeding system 10.

[0061] As shown in FIG. 1, a flow restriction mechanism 18 may be coupled to the first or third tubes 14, 16 to restrict or control the flow of fluid from the nutrition source through the first or third tubes 14, 16. For instance, the flow restriction mechanism 18 may be formed as a clamp 120. The clamp 120 may include at least one aperture through which the tube bodies 50a, 50c extend. Further, the clamp 120 may include at least one restriction member 124 configured to be positioned in an open or closed configuration. In the open configuration, fluid may flow through the first and third tubes 14, 16 without restriction from the flow restriction mechanism 18. In the closed configuration, the restriction member 124 may be compressed against the tube bodies 50a, 50c and held in place by a locking member 126. The restriction member 124 may thereby compress the tube bodies 50a, 50c to prevent and/or restrict the flow of fluid through the lumens 60a, 60b at the point at which the tube bodies 50a, 50c are compressed. In some respects, the restriction member 124 may fully prevent the flow of fluid through the lumens 60a, 60b. In other aspects of the present disclosure, the restriction member 124 may restrict or limit, i.e., slow, the flow of fluid through the lumens 60a, 60b to decrease the flow rate of fluid through the first and third tubes 14, 16.

[0062] In addition to or as an alternative to the push-style clamp 120, the flow restriction mechanism 18 may incorporate a roller-style clamp. A roller-style clamp may enable varying degrees of adjustment in the amount the tubing is compressed, and thus, modulate fluid flow through the tube. Furthermore, a rotary style flow restriction mechanism that inserts connectors of varying sizes inline to the tubing may be provided to modulate fluid flow through the first and third tubes 14, 16.

[0063] Referring now to FIG. 4, an internal view is provided of the enteral feeding system 10 being used with the peristaltic pump 130. As shown, the first tube 14 is coupled with a source of nutrition 122. In addition, the first tube 14 is shown as having a larger diameter than the second tube 15 and the third tube 16. Further, as shown, the second tube 15 may have a larger inner maximum diameter than the maximum diameter of the third tube 16. In such an implementation, the first, second, and third tubes 14, 15, 16 collectively have a reducing diameter. However, as aforementioned with reference to FIGS. 2A-2C, the second tube 15 may have a smaller maximum inner diameter than both the first tube 14 and the third tube 16.

[0064] In addition, as shown, the peristaltic pump 130 may include a roller 132 having pinions 134 that compress the second tube 15 to facilitate the flow of enteral nutrition from the source of nutrition 122 to a feeding tube adapter connected to the third tube 16 (not shown). In addition, as shown, the peristaltic pump 130 may also include a backing 136 which acts as a support for the roller 132 to apply pressure to the second tube 15 to facilitate the flow of the enteral nutrition. The backing 136 may be a molded or extruded component. The backing 136 may also be spring-backed to apply pressure to the second tube 15. A lever or a cam (not shown) may be utilized to bias the backing 136 against the second tube 15.

[0065] The backing 136 may be adjustable. For example, the backing 136 may be translated in a direction XI such that the second tube 15 is compressed with increasing or decreasing force. The adjustable backing defines a diameter DI between a center of the roller 132 and a wall of the adjustable backing 136 configured to contact the second tube 15. Specifically, when translated, the backing 136 may adjust the diameter DI measured from the center of the roller 132 to the wall of the backing 136 which contacts the second tube 15. More particularly, the diameter DI may be adjusted such that the diameter DI is a range from 20% to 180% of the maximum inner diameter 64b of the second tube 15. In some implementations, the range of the diameter DI is from 40% to 160% of the maximum inner diameter 64b of the second tube 15. In some implementations, the range of the diameter DI is from 50% to 150% of the maximum inner diameter 64b of the second tube 15.

[0066] Thus, when the backing 136 is more compressed against the second tube 15, the pressure build-up within the second tube 15 may increase, while when the backing 136 is less compressed against the second tube 15, the pressure build-up within the second tube 15 may decrease. Consequently, the flow rates may also increase or decrease depending on the pressure change. By providing a backing 136 that is adjustable in this manner, the pressure build-up within the enteral feeding system 10 may be adjusted. Such adjustments enable a user of the enteral feeding system 10 to adjust the flow rate based on the type of nutrition being utilized. For example, the compression of the second tube 15 may allow for a greater pressure build-up within the enteral feeding system 10, which can be beneficial when providing enteral nutrition with thicker foods such as a solid, blended nutrition. That is, a higher pressure buildup may be beneficial in driving a thicker food (e.g., blended) at the same rate as a thinner food (e.g., formula). Thus, increasing the compression force allows a larger pressure build-up within the tubing before flow rates are compromised (i.e., fluid slips under the rollers).

[0067] Referring now to FIG. 5, an internal, perspective view of the enteral feeding system of FIG. 1 used within the peristaltic pump of FIGS. 3-4 according to one particular implementation of the present disclosure. As shown, the bodies 50a, 50b, 50c of the first, second, and third tubes 14, 15, 16 may define a non-circular profile. For example, the first, second, and third tubes 14, 15, 16 may have a protrusion or protrusions 138 beyond the outer wall 56a, 56b, 56c of the first, second, and third tubes 14, 15, 16. The shape of the protrusion(s) 138 may be in the form of a spike, a prong, a ridge, a barb, a bump, a peak, or any other similar shape. By providing the protrusion(s) 138 the first, second, and third tubes 14, 15, 16 may have an increase in their expansion force which results in a greater vacuum force/pressure. As a result, enteral nutrition may be drawn with greater force as a result of providing first, second, and third tubes 14, 15, 16 with a non-circular profile or protrusion(s) 138.

[0068] Specifically, referring now to FIG. 6, a graph representing load versus crosshead as it relates to the tube of FIG. 5 according to one particular implementation of the present disclosure. As shown, graph 200 includes a load on the y-axis and a crosshead on the x-axis. Specifically, graph 200 depicts the forces associated with squeezing tube 15 until its inner diameter 64b is fully compressed, and then allowed to expand open at a fixed rate. More particularly, the left side of graph 200 depicts tube 15 as being fully expanded while the right side of graph 200 depicts tube 15 as being fully compressed. In addition, line 202 depicts tube 15 as having a circular profile, while line 204 depicts tube 15 as having a non-circular profile as shown in FIG. 5. Thus, as can be seen, when the tube 15 define a non-circular profile the expansion force is increased (i.e., the curve of line 204 has a less steep curve starting from the left). As a consequence, it can be seen that by providing tube 15 with a non-circular profile, the tube 15 may be able to more consistently expand and fully fill with enteral nutrition while expanding as a result of the non-circular profile providing a higher vacuum pressure and draw force on the enteral nutrition.

[0069] Referring now to FIG. 7, a schematic view of an adjustable backing positioned with an enteral feeding tube according to one particular implementation of the present disclosure. As shown, the backing 136 within the peristaltic pump 130 can define a non- flat profile. In such an orientation, the roller 132 and the pinions 134 would be complementary to the backing 136. As shown, the backing 136 can define a ridge-and-channel surface profile. Specifically, the backing 136 can have a first portion or ridge 140 at one end of the second tube 15 and a second portion or ridge 142 at the opposite end of the second tube 15. Thus, between the two ridges 140, 142 a channel therebetween where the second tube 15 is inserted and rests. The first ridge 140 can define an angled section 144a and a flat section 146a defining an engagement surface. Similarly, the second ridge 142 can define an angled section 144b and a flat section 146b.

[0070] The first ridge 140 defines a first angle between the angled section 144a and the flat section 146a. The first angle may be in a range from 100° to 150°. In some implementations, the range of the first angle may be from 110° to 140°. In some implementations, the range of the first angle may be from 115° to 135°. The second ridge 142 defines a second angle between the angled section 144b and the flat section 146b. The second angle may be in a range from 140° to 175°. In some implementations, the range of the second angle may be from 115° to 175°. In some implementations, the range of the second angle may be from 125° to 155°. In some implementations, the range of the second angle may be from 140° to 160°.

[0071] In addition, the first and second angles of the angled sections 144a, 144b of the first and second ridges 140, 142 may be different, but complementary. For example, the angle of the angled section 144b of the second ridge 142 may be 5° to 15° greater than the angle of the angled section 144a of the first ridge 140. To accommodate for the second tube 15 and the difference in the angle between the angled sections 144a, 144b, the flat section 146a of the first ridge 140 and the flat section 146b of the second ridge 142 may define different lengths. For example, the length LI of the flat section 146a of the first ridge 140 may range from 0.01 to 0.04 cm. In some implementations, the range of the length LI may be from 0.015 cm to 0.3 cm. In some implementations, the range of the length LI may be from 0.02 to 0.025 cm. Additionally, the length L2 of the flat section 146b of the second ridge 142 may range from 0.015 cm to 0.06 cm. In some implementations, the range of the length L2 may be from 0.02 cm to 0.05 cm. In some implementations, the range of the length L2 may be from 0.03 cm to 0.04 cm. Said differently, the length L2 of the flat section 146b of the second ridge 142 may be 0.005 to 0.015 cm greater than the length LI of the flat section 146a of the first ridge 140.

[0072] As a consequence of the different lengths LI, L2, the second tube 15 may have a greater or lesser degree of contact with the first or second ridge 140, 142. For example, the contact between the second tube 15 and the first ridge 140 may be the length LI and contact between the second tube 15 and the second ridge 142 may be the length L2. Thus, when accounting for the difference in length between LI and L2, the amount of contact between the second tube 15 and the first ridge 140 is different and lesser than the contact between the second tube 15 and the second ridge 142.

[0073] By requiring that the angled sections 144a, 144b and the flat sections 146a, 146b be different as described above, the expansion force of the second tube 15 can be increased. For example, referring now to FIG. 8, a graph representing load versus crosshead as it relates to the adjustable backing of FIG. 7 according to one particular implementation of the present disclosure is presented. As shown, graph 300 includes a load on the y-axis and a crosshead on the x-axis. Specifically, graph 300 depicts the forces associated with squeezing the second tube 15 with the backing 136 such that the inner diameter 64b is fully compressed, and then allowed to expand open at a fixed rate. More particularly, the left side of graph 300 depicts the second tube 15 as being fully expanded while the right side of graph 300 depicts the second tube 15 as being fully compressed with the backing 136. Specifically, line 302 depicts the backing 136 as having a flat profile, while line 304 depicts the backing 136 as having a non-circular profile as shown in FIG.7. Thus, as can be seen, when backing 136 defines a non-circular profile, such as having the ridge-and-channel profile of FIG. 7, the expansion force is increased (i.e., the curve of line 304 has a less steep curve starting from the left). As a consequence, it can be seen that by providing backing 136 with a non-circular profile, the second tube 15 may be able to more consistently expand and fully fill with enteral nutrition while expanding as a result of the non- circular profile providing a higher vacuum pressure and draw force on the enteral nutrition.

[0074] In another implementation, the peristaltic pump 130 may include an actuator or a controller (not shown). The actuator or controller may include a first mode and a second mode configured to control the roller 132, the pinions 134 or the backing 136. The actuator may be the lever or cam previously described and be configured to mechanically implement the modes either automatically or via an action from a user, while the controller may include commands preprogrammed to implement the modes.

[0075] For example, as it relates to the backing 136, the first mode may include a command to adjust the diameter of the adjustable backing to less than 100% of the maximum inner diameter 64b of the second tube 15, while the second mode may include a command to adjust the diameter of the adjustable backing 136 to greater than 100% of the maximum inner diameter 64b of the second tube 1 15. Each mode may be selected based on the type of enteral nutrition being utilized. For example, the first mode which has a greater degree of compression and a reduced flow rate may be utilized for a liquid or formula-based nutrition, while the second mode which has a lesser degree of compression and a greater flow rate may be utilized for a solid, blended nutrition.

[0076] The actuator or controller may also be able to control the slide 133 (see FIG. 4) which can be used to further compress or stretch the second tube 15 against the backing. For example, in the second mode, the second mode can include a command to the slide 133 to pull the second tube 15 against the roller 132. Conversely, the first mode can include a command to the slide 133 to release the second tube 15 or pull the second tube 15 away from the roller 132. Similar to as described above, the feature of the first mode can provide a greater degree of compression and a lesser flow rate to be utilized for a liquid or formula-based nutrition, while the second mode which has a lesser degree of compression and a greater flow rate may be utilized for a solid, blended nutrition. [0077] If a controller is utilized, the controller may also communicate with a pressure sensor 135 communicatively coupled with an interior 56b of the second tube 15 (see FIG. 4). With the pressure sensor 135, the controller may be capable of implementing the first mode and the second more based upon pressure from the interior 56b of the second tube 15. For example, if pressure sensor 135 detects that a liquid nutrition is being utilized based on the pressure within the second tube 15, the controller may implement the first mode and decrease the compression on the second tube 15 as described above. Conversely, if the pressure sensor 135 detects that a solid, blended nutrition is being utilized based on the pressure within the second tube 15, the controller may implement the first mode and increase the compression on the second tube 15 as described above. Thus, the pressure sensor 135 and the controller used with the peristaltic pump 130 may be able to automatically adjust the compression on the second tube 15 and the flow rate of the enteral feeding system 10 to account for several types of nutrition. However, a user may also select the modes or otherwise adjust the peristaltic pump 130 based on the type of nutrition being utilized.

[0078] The pressure sensor 135 may also be utilized to determine if an occlusion has occurred in the enteral feeding system 10. For example, the controller may be configured to detect an occlusion within the second tube 15 based on the pressure of the interior 56b of the second tube 15. Specifically, if the second tube 15 registers a higher or lower pressure than a predetermined pressure for the enteral feeding system 10 and the type of nutrition being utilized, the controller may determine that there is an occlusion within the second tube 15 or the enteral feeding system 10. The pressure at which the occlusion is detected may also vary if the first or second mode is being implemented. Specifically, the pressure at which an occlusion is detected is detected for the first mode is higher for the first mode compared to the second mode as a result of the first mode inherently having higher pressures due to having greater compression as described above. Further, the sensitivity of the enteral feeding system to detect an occlusion may also vary depending on the mode being implemented. For example, the first mode may have a larger range of values at which it registers an occlusion as being detected when compared to the second mode.

[0079] The controller of the peristaltic pump 130 may also include varying speeds or duty cycles (i.e., on/off cycles) to control the flow rate of the enteral nutrition through the enteral feeding system 10. For example, the first mode implemented by the controller may include operating the peristaltic pump 130 at a continuous speed and a discontinuous duty cycle. Specifically, with regards to the duty cycle, the first mode may include operating the peristaltic pump 130 at a discontinuous duty cycle of one rotor revolution at a time. That is, the roller 132 may spin 360 degrees and then stop for a predetermined time based on the target flow rate. Conversely, the second mode may include operating the peristaltic pump 130 at a discontinuous speed and a continuous duty cycle.

[0080] By operating the peristaltic pump 130 at a continuous speed and a discontinuous duty cycle, according to the first mode, the peristaltic pump 130 may be able to conserve energy use while not controlling the pressure within the enteral feeding system 10 if liquid nutrition is utilized. Further, operating the peristaltic pump at a discontinuous duty cycle may minimize the start and stop of the motor thereby reducing stress on the motor while maintaining pressures at acceptable levels. Conversely, by operating the peristaltic pump 130 at a discontinuous speed and a continuous duty cycle, according to the second mode, the peristaltic pump 130 may be able to maintain a target flow rate to accommodate solid, blended nutrition. The discontinuous speed and a continuous duty cycle of the second mode may also allow for the pressure to be controlled such that the pressure does not exceed any manufacturing limits of either the peristaltic pump 130, the second tube 15, or any other component of the enteral feeding system 10.

[0081] As shown in FIG. 9, the present disclosure may be further directed to a method of forming an enteral feeding tube. The method 400 may be utilized to form the enteral feeding system 10 of the present disclosure. Specifically, at step 402, method 400 includes providing a nutrition adapter including a coupling configured to couple to a source of enteral nutrition. At step 404, method 400 includes attaching a first tube having a proximal end and a distal end to the nutrition adapter, and a lumen extending between the proximal end and the distal end where the proximal end is coupled to the coupling of the nutrition adapter downstream of the coupling. At step 406, method 400 includes attaching a second tube to be inserted into a peristaltic pump having a proximal end and a distal end to the first tube, and a lumen extending between the proximal end and the distal end where the proximal end is coupled to the distal end of the first tube. At step 408, the method includes attaching a third tube having a proximal end and a distal end to the second tube, and a lumen extending between the proximal end and the distal end where the proximal end is coupled to the distal end of the second tube. At step 410, the method includes attaching a feeding tube adapter coupled to the distal end of the third tube to the third tube where the feeding tube adapter includes a coupling configured to be coupled to a feeding tube receiving port, and the feeding tube adapter includes a lumen fluidly coupling the lumen of the third tube with a lumen of the feeding tube receiving port. Further, as described above with reference to FIGS. 1-8, the first tube includes a larger maximum inner diameter than the second tube and the third tube. Thus, by employing the method 400 as described, an enteral feeding tube may be formed, such as the enteral feeding system 10.

[0082] Exemplary Aspects

[0083] In view of the described device and processes, herein are described certain more particularly described aspects of the disclosures. These particularly recited aspects should not, however, be interpreted to have any limiting effect on any different claims containing different or more general teachings described herein, or that the “particular” aspects are somehow limited in some way other than the inherent meanings of the language and formulas literally used therein.

[0084] Further exemplary aspects of the disclosure are provided by one or more of the following examples:

[0085] Example 1 : An example of the present disclosure provides an enteral feeding system. In one of its basic configurations, the enteral feeding system comprises a nutrition adapter comprising a coupling configured to couple to a source of enteral nutrition; a first tube having a proximal end and a distal end, and a lumen extending between the proximal end and the distal end, wherein the proximal end is coupled to the coupling of the nutrition adapter downstream of the coupling; a second tube to be inserted into a peristaltic pump having a proximal end and a distal end, and a lumen extending between the proximal end and the distal end, wherein the proximal end is coupled to the distal end of the first tube; a third tube having a proximal end and a distal end, and a lumen extending between the proximal end and the distal end, wherein the proximal end is coupled to the distal end of the second tube; and a feeding tube adapter coupled to the distal end of the third tube, wherein the feeding tube adapter comprises a coupling configured to be coupled to a feeding tube receiving port, wherein the feeding tube adapter comprises a lumen fluidly coupling the lumen of the third tube with a lumen of the feeding tube receiving port, wherein the first tube comprises a larger maximum inner diameter than the second tube and the third tube.

[0086] Example 2: The enteral feeding system according to any example herein, particularly example 1, wherein the second tube comprises a smaller maximum diameter than the first tube and the third tube. [0087] Example 3: The enteral feeding system according to any example herein, particularly examples 1-2, wherein the maximum inner diameter of the first tube comprises a range from 0.12 inches to 0.31 inches.

[0088] Example 4: The enteral feeding system according to any example herein, particularly examples 1-3, wherein the first tube, the second tube, or the third tube comprises a non-circular profile.

[0089] Example 5 : The enteral feeding system according to any example herein, particularly example 4, wherein the non-circular profile comprises protrusions along an outer wall of the first tube, the second tube, or the third tube.

[0090] Example 6: The enteral feeding system according to any example herein, particularly example 5, wherein the protrusions comprise at least one of spikes, prongs, barbs, or combinations thereof.

[0091] Example 7: The enteral feeding system according to any example herein, particularly examples 1-6, further comprising the peristaltic pump into which the second tube is configured to inserted, wherein the peristaltic pump comprises at least one roller and an adjustable backing configured to adjustably compress the second tube against the at least one roller.

[0092] Example 8: The enteral feeding system according to any example herein, particularly example 7, wherein the adjustable backing defines a diameter between a center of the least one roller and a wall of the adjustable backing configured to contact the second tube, wherein movement of the adjustable hacking adjusts the diameter defined between the center of the least one roller and the wall of the adjustable backing, and wherein the diameter is in a range from 50% to 150% of the second maximum inner diameter of the second tube.

[0093] Example 9: The enteral feeding system according to any example herein, particularly example 8, wherein the adjustable backing comprises a first portion and a second portion, wherein the first portion is positioned at one end where the second tube is configured to be inserted and the second portion is positioned at an opposite end where the second tube is configured to be inserted.

[0094] Example 10: The enteral feeding system according to any example herein, particularly example 9, wherein the first portion and the second portion each comprise an angled section and an engagement surface, wherein a first angle is defined between the angled section and the engagement surface of the first portion and a second angle is defined between the angled section and the engagement surface, and wherein the first angle is different from the second angle.

[0095] Example 11 : The enteral feeding system according to any example herein, particularly example 10, wherein the first angle is in a range from 100° to 135°, and wherein the second angle is in a range from 140° to 175°.

[0096] Example 12: The enteral feeding system according to any example herein, particularly examples 10-11, wherein the engagement surface of the first portion and the second portion are each configured to contact the second tube, wherein the engagement surface of the first portion defines a first length and the engagement surface of the second portion defines a second length, wherein the first length is different than the second length.

[0097] Example 13: The enteral feeding system according to any example herein, particularly examples 7-12, wherein the peristaltic pump comprises an actuator or a controller, wherein the actuator or controller is configured to implement a first mode and a second mode, wherein the first mode comprises an adjustment to the diameter of the adjustable backing to less than 100% of the maximum inner diameter of the second tube, wherein the second mode comprises an adjustment to the diameter of the adjustable backing to greater than 100% of the maximum inner diameter of the second tube.

[0098] Example 14: The enteral feeding system according to any example herein, particularly example 13, further comprising a slide, wherein in the first mode the slide is configured to pull the second tube against the at least one roller.

[0099] Example 15: The enteral feeding system according to any example herein, particularly examples 13-14, wherein the peristaltic pump comprises the controller, wherein the enteral feeding system further comprises a pressure sensor communicatively coupled with an interior of the second tube, wherein the controller is configured to implement the first mode and the second mode based upon a pressure from the interior of the second tube.

[0100] Example 16: The enteral feeding system according to any example herein, particularly example 15, wherein the controller is configured to detect occlusions within the second tube based on the pressure of the interior of the second tube.

[0101] Example 17: The enteral feeding system according to any example herein, particularly example 16, wherein a range of values at which an occlusion is detected is greater for the first mode compared to the second mode. [0102] Example 18: The enteral feeding system according to any example herein, particularly examples 13-17, wherein the first mode comprises operating the peristaltic pump at a continuous speed and a discontinuous duty cycle, wherein the second mode comprises operating the peristaltic pump at a discontinuous speed and a continuous duty cycle.

[0103] Example 19: An example of the present disclosure provides an enteral feeding system. In one of its basic configurations, the enteral feeding system comprises a nutrition adapter comprising a coupling configured to couple to a source of enteral nutrition;_a first tube having a proximal end and a distal end, and a lumen extending between the proximal end and the distal end, wherein the proximal end is coupled to the coupling of the nutrition adapter downstream of the coupling ;_a second tube to be inserted into a peristaltic pump having a proximal end and a distal end, and a lumen extending between the proximal end and the distal end, wherein the proximal end is coupled to the distal end of the first tube; a third tube having a proximal end and a distal end, and a lumen extending between the proximal end and the distal end, wherein the proximal end is coupled to the distal end of the second tube; and a feeding tube adapter coupled to the distal end of the third tube, wherein the feeding tube adapter comprises a coupling configured to be coupled to a feeding tube receiving port, wherein the feeding tube adapter comprises a lumen fluidly coupling the lumen of the third tube with a lumen of the feeding tube receiving port. The first tube, the second tube, or the third tube comprises a non-circular profile.

[0104] Example 20: An example of the present disclosure provides a method of forming an enteral feeding tube. In one of its basic configurations, the method comprises providing a nutrition adapter comprising a coupling configured to couple to a source of enteral nutrition; attaching a first tube having a proximal end and a distal end to the nutrition adapter, and a lumen extending between the proximal end and the distal end, wherein the proximal end is coupled to the coupling of the nutrition adapter downstream of the coupling; attaching a second tube to be inserted into a peristaltic pump having a proximal end and a distal end to the first tube, and a lumen extending between the proximal end and the distal end, wherein the proximal end is coupled to the distal end of the first tube; attaching a third tube having a proximal end and a distal end to the second tube, and a lumen extending between the proximal end and the distal end, wherein the proximal end is coupled to the distal end of the second tube; and attaching a feeding tube adapter coupled to the distal end of the third tube to the third tube, wherein the feeding tube adapter comprises a coupling configured to be coupled to a feeding tube receiving port, wherein the feeding tube adapter comprises a lumen fluidly coupling the lumen of the third tube with a lumen of the feeding tube receiving port. The first tube comprises a first maximum inner diameter that is greater than a second maximum diameter of the second tube and a third maximum diameter of the third tube.

[0105] The enteral feeding system according to any example herein, particularly example 1 , An exemplary technical effect of the methods, systems, and apparatus described herein includes at least one of, but are not limited to: a) better accommodating for different types of nutrition, b) better accounting for occlusions that may occur within an enteral feeding system as it relates to varying types of nutrition, and c) improving ease of different types of nutrition with an enteral feeding system with or without additional input from a patient or provider.

[0106] This written description uses examples to disclose the disclosure, including the best mode, and also to enable any person skilled in the art to practice the disclosure, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the disclosure is defined by the claims and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they include structural elements that do not differ from the literal language of the claims or if they include equivalent structural elements with insubstantial differences from the literal language of the claims.

Claims

CLAIMS What is claimed is:

1. An enteral feeding system comprising: a nutrition adapter comprising a coupling configured to couple to a source of enteral nutrition; a first tube having a proximal end and a distal end, and a lumen extending between the proximal end and the distal end, wherein the proximal end is coupled to the coupling of the nutrition adapter downstream of the coupling; a second tube to be inserted into a peristaltic pump having a proximal end and a distal end, and a lumen extending between the proximal end and the distal end, wherein the proximal end is coupled to the distal end of the first tube; a third tube having a proximal end and a distal end, and a lumen extending between the proximal end and the distal end, wherein the proximal end is coupled to the distal end of the second tube; and a feeding tube adapter coupled to the distal end of the third tube, wherein the feeding tube adapter comprises a coupling configured to be coupled to a feeding tube receiving port, wherein the feeding tube adapter comprises a lumen fluidly coupling the lumen of the third tube with a lumen of the feeding tube receiving port, wherein the first tube comprises a first maximum inner diameter that is greater than a second maximum diameter of the second tube and a third maximum diameter of the third tube.

2. The enteral feeding system of claim 1 , wherein the second maximum diameter is less than the first maximum diameter and the third maximum diameter.

3. The enteral feeding system of any one of claims 1-2, wherein the first maximum inner diameter comprises a range from 0.12 inches to 0.31 inches.

4. The enteral feeding system of any one of claims 1-3, wherein the first tube, the second tube, or the third tube comprises a non-circular profile.

5. The enteral feeding system of claim 4, wherein the non-circular profile comprises protrusions along an outer wall of the first tube, the second tube, or the third tube.

6. The enteral feeding system of claim 5, wherein the protrusions comprise at least one of spikes, prongs, barbs, or combinations thereof.

7. The enteral feeding system of any one of claims 1-6, further comprising the peristaltic pump into which the second tube is configured to inserted, wherein the peristaltic pump comprises at least one roller and an adjustable backing configured to adjustably compress the second tube against the at least one roller.

8. The enteral feeding system of claim 7, wherein the adjustable backing defines a diameter between a center of the least one roller and a wall of the adjustable backing configured to contact the second tube, wherein movement of the adjustable backing adjusts the diameter defined between the center of the least one roller and the wall of the adjustable backing, and wherein the diameter is in a range from 50% to 150% of the second maximum inner diameter of the second tube.

9. The enteral feeding system of claim 8, wherein the adjustable backing comprises a first portion and a second portion, wherein the first portion is positioned at one end where the second tube is configured to be inserted and the second portion is positioned at an opposite end where the second tube is configured to be inserted.

10. The enteral feeding system of claim 9, wherein the first portion and the second portion each comprise an angled section and an engagement surface, wherein a first angle is defined between the angled section and the engagement surface of the first portion and a second angle is defined between the angled section and the engagement surface, and wherein the first angle is different from the second angle.

11. The enteral feeding system of claim 10, wherein the first angle is in a range from 100° to 135°, and wherein the second angle is in a range from 140° to 175°.

12. The enteral feeding system of any one of claims 10-11, wherein the engagement surface of the first portion and the second portion are each configured to contact the second tube, wherein the engagement surface of the first portion defines a first length and the engagement surface of the second portion defines a second length, wherein the first length is different than the second length.

13. The enteral feeding system of any one of claims 7-12, wherein the peristaltic pump comprises an actuator or a controller, wherein the actuator or controller is configured to implement a first mode and a second mode, wherein the first mode comprises an adjustment to the diameter of the adjustable backing to less than 100% of the maximum inner diameter of the second tube, wherein the second mode comprises an adjustment to the diameter of the adjustable backing to greater than 100% of the maximum inner diameter of the second tube.

14. The enteral feeding system of claim 13, further comprising a slide, wherein in the first mode the slide is configured to pull the second tube against the at least one roller.

15. The enteral feeding system of any one of claims 13-14, wherein the peristaltic pump comprises the controller, wherein the enteral feeding system further comprises a pressure sensor communicatively coupled with an interior of the second tube, wherein the controller is configured to implement the first mode and the second mode based upon a pressure from the interior of the second tube.

16. The enteral feeding system of claim 15, wherein the controller is configured to detect occlusions within the second tube based on the pressure of the interior of the second tube.

17. The enteral feeding system of claim 16, wherein a range of values at which an occlusion is detected is greater for the first mode compared to the second mode.

18. The enteral feeding system of any one of claims 13-17, wherein the first mode comprises operating the peristaltic pump at a continuous speed and a discontinuous duty cycle, wherein the second mode comprises operating the peristaltic pump at a discontinuous speed and a continuous duty cycle.

19. An enteral feeding system comprising: a nutrition adapter comprising a coupling configured to couple to a source of enteral nutrition; a first tube having a proximal end and a distal end, and a lumen extending between the proximal end and the distal end, wherein the proximal end is coupled to the coupling of the nutrition adapter downstream of the coupling; a second tube to be inserted into a peristaltic pump having a proximal end and a distal end, and a lumen extending between the proximal end and the distal end, wherein the proximal end is coupled to the distal end of the first tube; a third tube having a proximal end and a distal end, and a lumen extending between the proximal end and the distal end, wherein the proximal end is coupled to the distal end of the second tube; and a feeding tube adapter coupled to the distal end of the third tube, wherein the feeding tube adapter comprises a coupling configured to be coupled to a feeding tube receiving port, wherein the feeding tube adapter comprises a lumen fluidly coupling the lumen of the third tube with a lumen of the feeding tube receiving port, wherein the first tube, the second tube, or the third tube comprises a non-circular profile.

20. A method of forming an enteral feeding tube, the method comprising: providing a nutrition adapter comprising a coupling configured to couple to a source of enteral nutrition; attaching a first tube having a proximal end and a distal end to the nutrition adapter, and a lumen extending between the proximal end and the distal end, wherein the proximal end is coupled to the coupling of the nutrition adapter downstream of the coupling; attaching a second tube to be inserted into a peristaltic pump having a proximal end and a distal end to the first tube, and a lumen extending between the proximal end and the distal end, wherein the proximal end is coupled to the distal end of the first tube; attaching a third tube having a proximal end and a distal end to the second tube, and a lumen extending between the proximal end and the distal end, wherein the proximal end is coupled to the distal end of the second tube; and attaching a feeding tube adapter coupled to the distal end of the third tube to the third tube, wherein the feeding tube adapter comprises a coupling configured to be coupled to a feeding tube receiving port, wherein the feeding tube adapter comprises a lumen fluidly coupling the lumen of the third tube with a lumen of the feeding tube receiving port, wherein the first tube comprises a first maximum inner diameter that is greater than a second maximum diameter of the second tube and a third maximum diameter of the third tube.