Flow control valve for infant feeding device

Abstract

A feeding device includes a fluid reservoir and a teat configured to be attached to the fluid reservoir. The teat includes a base portion and a teat portion, wherein the base portion and the teat portion collectively define an interior space of the teat. The teat also includes a removable flow valve configured to be located within the interior space of the teat, and an inner cavity located between the removable flow valve and a wall of the teat. The removable flow valve includes a central opening and at least one valve protrusion extending from a surface of the flow valve into the inner cavity. The removable flow valve is configured to regulate a flow rate of fluid entering the lumen from the fluid reservoir.

Description

Technical Field

[0001] The disclosure generally relates to a feeding device for an infant. In particular, the disclosure relates to a feeding device for an infant having a flow control valve. Background Art

[0002] Feeding devices such as baby bottles are commonly used to feed infants from newborns to toddlers for a variety of reasons, including but not limited to: difficulty latching, mother's inability to produce enough milk, feeding by a caregiver other than the mother or a physician, mother's inability to breastfeed for health reasons, weaning of the infant, etc. Summary of the invention

[0003] This Summary is a high-level summary of various aspects of the invention and introduces some of the concepts that will be further described in the "Detailed Description" section below. This Summary is not intended to identify key or essential features of the claimed subject matter, nor should it be used alone to determine the scope of the claimed subject matter. The subject matter should be understood by reference to the entire specification, any or all of the drawings, and the corresponding portion of each claim.

[0004] An embodiment of the disclosure relates to a feeding device including a fluid reservoir. The device also includes a nipple configured to be attached to the fluid reservoir. The nipple includes a base portion and a nipple portion. The base portion and the nipple portion together define an interior space of the nipple. The nipple also includes a removable flow valve configured to be located within the interior space of the nipple. The nipple also includes an inner cavity between the removable flow valve and the nipple. The removable flow valve includes a central opening and at least one valve protrusion extending from a surface of the flow valve into the inner cavity. The removable flow valve is configured to adjust the flow rate from the fluid reservoir into the inner cavity.

[0005] In some embodiments, the nipple includes an annular groove on an inner surface thereof, the annular groove being configured to removably retain the flow valve therein.

[0006] In some embodiments, the flow valve forms a fluid seal with the annular groove.

[0007] In some embodiments, the fluid includes a hard plastic ring and a soft overmold layer that defines an outer diameter of the flow valve.

[0008] In some embodiments, at least one valve protrusion has a length of 5 mm to 9 mm.

[0009] In some embodiments, at least one valve protrusion has a diameter of 1.5 mm to 2.0 mm.

[0010] In some embodiments, at least one valve protrusion is randomly spaced apart on the surface of the flow valve.

[0011] In some embodiments, the nipple further comprises at least one nipple protrusion extending proximally from an inner surface of the distal end of the nipple portion.

[0012] In some embodiments, at least one nipple projection has a length of 9 mm to 12 mm.

[0013] In some embodiments, at least one nipple protrusion has a diameter of 1.2 mm to 1.5 mm.

[0014] The embodiment of the disclosure also relates to a kit, which includes at least two flow valves with different flow rates. Each of the at least two flow valves includes a central opening with a diameter and at least one valve protrusion extending from the surface of each of the at least two flow valves. The kit also includes a feeding device, which includes a fluid reservoir and a nipple configured to be attached to the fluid reservoir. The nipple includes a base portion and a nipple portion. The base portion and the nipple portion together define the internal space of the nipple. The nipple is configured to keep one of the at least two flow valves in the internal space of the nipple. An inner cavity is formed between one of the at least two flow valves and the nipple. The at least two flow valves are configured to adjust the flow rate of the fluid entering the inner cavity from the fluid reservoir.

[0015] In some embodiments, the diameter of the central opening of each of the at least two flow valves is different from the diameter of the central opening of the other flow valves of the at least two flow valves.

[0016] In some embodiments, the nipple includes an annular groove on an inner surface thereof, the annular groove being configured to removably retain one of the at least two flow valves therein.

[0017] In some embodiments, one of the at least two flow valves forms a fluid seal with the annular groove.

[0018] In some embodiments, each of the at least two flow valves includes a hard plastic ring defining an outer diameter of the flow valve and a soft overmold layer.

[0019] The embodiments of the disclosure also relate to a nipple, which includes a base portion and a nipple portion. The base portion and the nipple portion together define an interior space of the nipple. The nipple also includes a removable flow valve, which is configured to be located in the interior space of the nipple. The nipple also includes an inner cavity between the removable flow valve and the nipple. The removable flow valve includes a central opening and at least one valve protrusion extending from a surface of the flow valve into the inner cavity. The removable flow valve is configured to adjust the flow rate of a fluid passing through the nipple. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are included to provide a further understanding of the disclosure and constitute a part of this specification, illustrate embodiments, and together with the description serve to explain the principles of the disclosure.

[0021] Figure 1 is a perspective view of a feeding device according to an embodiment of the disclosure.

[0022] Figure 2 It is implemented according to the public text Figure 1 A cross-sectional view of the feeding device shown.

[0023] Figure 3 is a cross-sectional view of a nipple including a flow valve according to an embodiment of the disclosure.

[0024] Figure 4 is a perspective view of a flow valve according to an embodiment of the disclosure.

[0025] Figure 5 is a cross-sectional view of a flow valve according to an embodiment of the disclosure.

[0026] Figure 6 is a top view of a nipple and a flow valve according to an embodiment of the disclosure.

[0027] Figure 7 is a side view of a flow valve according to an embodiment of the disclosure.

[0028] Figure 8 It is implemented according to the public text Figure 7 A cross-sectional view of the flow valve shown.

[0029] Fig. 9 It is implemented according to the public text Figure 7 A perspective view of the flexible layer of the flow valve shown.

[0030] Fig.10 is incorporated according to the disclosed text implementation scheme Figure 7 Cross-sectional view of a feeding device with a flow valve.

[0031] Fig.11 is a perspective view of a nipple and a connecting collar according to an embodiment of the disclosure.

[0032] Fig.12 is a cross-sectional view of a connecting collar according to an embodiment of the disclosure. DETAILED DESCRIPTION

[0033] The following description only provides exemplary embodiments, and is not intended to limit the scope, applicability or configuration of the disclosure. On the contrary, the following description of the exemplary embodiments will provide a guiding explanation for realizing one or more exemplary embodiments for those skilled in the art. It should be understood that, without departing from the spirit and scope of the embodiments of the disclosure, various modifications can be made to the function and arrangement of the elements. The following will describe the implementation example in conjunction with the accompanying drawings. In each of the accompanying drawings, the same, similar or functionally identical elements are identified by the same reference numerals, and for the sake of brevity, the repeated description of these elements is partially omitted. As used herein, "distal" refers to the direction toward or closer to the baby end of a feeding device (such as a baby bottle) or other device. As used herein, "proximal" refers to the direction toward or closer to the nursing staff end of a feeding device.

[0034] Among the advantages and improvements disclosed, other objects and advantages of the present invention will become apparent from the following description in conjunction with the accompanying drawings. Specific embodiments of the present invention are disclosed herein; however, it should be understood that the disclosed embodiments are only illustrations of the present invention that can be implemented in various forms. In addition, each example given in conjunction with the various embodiments of the present invention is intended to be illustrative rather than limiting.

[0035] Throughout the specification and claims, unless the context clearly indicates otherwise, the following terms adopt the meanings clearly associated herein. The phrases "in one embodiment" and "in some embodiments" used herein do not necessarily refer to the same embodiment, although they may refer to the same embodiment. In addition, the phrases "in another embodiment" and "in some other embodiments" used herein do not necessarily refer to different embodiments, although they may refer to different embodiments. Therefore, as described below, various embodiments of the present invention can be easily combined without departing from the scope or spirit of the present invention.

[0036] In addition, as used herein, the term "or" is an inclusive "or" operator and is equivalent to the term "and / or" unless the context clearly indicates otherwise. The term "based on" is not exclusive and allows for being based on additional factors that are not described unless the context clearly indicates otherwise. In addition, throughout the specification, the meanings of "a", "an" and "the" include plural references. The meaning of "in..." includes "in..." and "on...".

[0037] The term "based on" is not exclusive and allows for additional factors not described unless the context clearly indicates otherwise. In addition, throughout the specification, the meanings of "a", "a kind of" and "the" include plural references. The meaning of "in..." includes "in..." and "on...". Spatial or directional terms, such as "left", "right", "inside", "outside", "upper", "lower", etc., should not be considered restrictive, as the present invention can adopt various alternative orientations. All numbers used in the specification are understood to be modified by the term "about" in all cases. The term "about" means a range of plus or minus ten percent of the value.

[0038] Unless otherwise stated, all ranges or ratios disclosed herein are understood to include any and all subranges or subratios contained therein. Unless otherwise stated, all ranges or ratios herein are understood to include end values ​​(i.e., including the minimum and maximum values ​​of the range or ratio). For example, the range or ratio of "1 to 10" is understood to include any and all subranges between a minimum value of 1 and a maximum value of 10 (including 1 and 10); that is, all subranges or subratios starting with a minimum value of 1 or greater and ending with a maximum value of 10 or less, such as, but not limited to, 1 to 6.1, 3.5 to 7.8, and 5.5 to 10.

[0039] In some embodiments, the disclosure relates to an infant feeding device with an interchangeable flow valve, the flow valve being used to control the flow of liquid from a fluid reservoir of the feeding device into the infant's mouth via a nipple of the feeding device. In some embodiments, the flow valve is located inside the nipple of the feeding device to form a fluid seal. In some embodiments, the flow valve encapsulates the fluid volume in the fluid reservoir on a first side of the flow valve, while forming an inner cavity in the nipple on a second side of the flow valve. In some embodiments, the fluid can only enter the inner cavity of the nipple through an opening in the flow valve.

[0040] In some embodiments, the present invention is a self-sterilizing product. In some embodiments, the present invention provides the ability to control fluids using a bottle. In some embodiments, the present invention provides significant relief to mothers during early breastfeeding when nipples are sensitive or painful. In some embodiments, the present invention significantly reduces and / or prevents infants from developing nipple confusion or preference for natural nipples compared to conventional nipples. In some embodiments, the present invention is a pacifier.

[0041] In some embodiments, the product enables a new mother to obtain a nipple and pacifier customized for her newborn based on her own anatomy. For example, the product assists in breastfeeding of a newborn by using a customized nipple or pacifier to reduce "nipple confusion" and / or facilitate nipple preference.

[0042] In some embodiments, the invention addresses at least one of the following problems: 18% of breastfed infants are unable or unwilling to drink from a bottle; 83% of breastfeeding mothers feel criticized for receiving disapproving looks or derogatory comments when breastfeeding in public; 60% of breastfeeding mothers experience sore, cracked, or bleeding nipples; 42% report that their infants have difficulty latching on within the first two weeks.

[0043] In some embodiments, the disclosure relates to a baby feeding kit, which includes a baby feeding device and three interchangeable flow valves with optional openings. In some embodiments, each interchangeable flow valve has different flow rates. In some embodiments, each opening of the interchangeable flow valve has different flow rates. In some embodiments, each interchangeable flow valve has different numbers of openings, and the diameter of each opening is the same. In some embodiments, the baby feeding kit includes three flow valves: a first flow valve for 0 to 3 months of infants, a second flow valve for 3 to 6 months of infants, and a third flow valve for 6 months and above infants.

[0044] In some embodiments, the nipple and / or pacifier will be made from current FDA-approved materials such as food-grade silicone or latex.

[0045] In some embodiments, the geometry of the nipple (eg, structure, back pressure, valve) enables a safe and effective nutritive suck by an infant - ie, the synchronized activities of sucking, swallowing process, and breathing.

[0046] In some embodiments, the geometry of the nipple enables sucking, swallowing process, and breathing to function properly on two levels: first, the elements within each function must reach the appropriate functional maturity so that they can work in sync with each other to produce proper sucking, swallowing process, and breathing; second, the elements of all these different functions must be able to perform the same function accordingly at the integrated level to ensure safe and efficient delivery of the food bolus from the mouth to the stomach.

[0047] In some embodiments, the geometry of the nipple implements the details in the scientific journal Tongue movement and intra-oral vacuum in breastfeeding infants, published by Donna T. Geddes, Jacqueline C. Kent, Leon R. Mitoulas, Peter E. Hartmann (Department of Biochemistry and Molecular Biology, School of Biomedical, Biomolecular and Chemical Sciences, School of Life and Physical Sciences, University of Western Australia, Australia Medical Research Coordinator, Medela AG, Medical Technology Division, 4b, 6341 Baar, Switzerland) (received February 1, 2007; revised manuscript received August 21, 2007; accepted December 20, 2007). In some embodiments, the nipple geometry achieves: a) an average breastfeeding duration of 8 min 16 s ± 2 min 45 s and an average milk intake of 63 ± 31 g; b) an average vacuum of -114 ± 50 mmHg; c) a peak vacuum of -145 ± 58 mmHg and a baseline vacuum of -64 ± 45 mmHg.

[0048] In some embodiments, the geometry of the nipple is configured so that the position of the nipple in the infant's mouth is during the tongue-up phase and the tongue-down phase of the suck cycle for peak vacuum and baseline vacuum applied by the infant.

[0049] Exemplary embodiments of the present invention, which encompass valves, systems, and methods for regulating the flow of liquid through a feeding device, are described and illustrated below.

[0050] Go to Figure 1-2 , depicts a feeding device 100 according to a first embodiment of the disclosure. In some embodiments, the feeding device 100 includes a fluid reservoir 102, a nipple 104 removably attached to the fluid reservoir 102, and an interchangeable flow valve 108 insertable into the nipple 104. In some embodiments, the nipple 104 is removably attached to the fluid reservoir 102 via a connecting collar 106.

[0051] In some embodiments, the fluid reservoir 102 is a bottle-shaped container commonly used for feeding infants. In some embodiments, the fluid reservoir is configured to hold milk, formula milk or other liquid products for feeding infants. In some embodiments, the fluid reservoir 102 is cylindrical. However, in other embodiments, the fluid reservoir can be of any shape. In some embodiments, the fluid reservoir 102 is made of a rigid material. In other embodiments, the fluid reservoir 102 is made of a flexible material to allow compression of the fluid reservoir 102. In some embodiments, the fluid reservoir 102 can hold 4 ounces to 8 ounces of fluid; or 4 ounces to 6 ounces of fluid, or 6 ounces to 8 ounces of fluid.

[0052] In some embodiments, the fluid reservoir 102 includes a neck portion 110 configured to connect the fluid reservoir 102 to the nipple 104, such as Figure 2 In some embodiments, the neck portion 110 includes an opening 112 configured to allow fluid to flow from the fluid reservoir 102 to the nipple 104. In some embodiments, the fluid reservoir 102 includes threads 146 extending outwardly from the neck portion 110.

[0053] Figure 3 An exemplary nipple 104 is shown according to some embodiments of the disclosure. In some embodiments, the shape of the nipple 104 is designed to closely simulate the shape and appearance of a mother's breast and nipple area. In some embodiments, the geometry of the nipple 104 is configured to create a vacuum that mirrors the seal that an infant forms on the mother's breast prior to active sucking. When the infant applies a vacuum through a downward motion of the tongue, the seal is reflected in a slight movement of the nipple 104. In some embodiments, the nipple 104 includes a base portion 114, an areola portion 115, and a nipple portion 116. In some embodiments, the nipple portion 116 is configured to be insertable into an infant's mouth. In some embodiments, the nipple 104 is provided with at least one hole 118 at the distal end of the nipple portion 116 through which fluid can pass, such as Figure 3 In some embodiments, the nipple 104 includes a groove 120 configured to hold the flow valve 108 within the interior space of the nipple 104, which will be described in further detail below.

[0054] In some embodiments, the nipple 104 includes at least one nipple protrusion 126 that extends proximally downward from the inner surface 138 of the distal end of the nipple portion 116 into the interior space of the nipple 104, such as Figure 3 In some embodiments, at least one nipple protrusion 126 simulates the feel of a milk duct in the nipple of a human nipple. In some embodiments, at least one nipple protrusion 126 is made of a flexible material, such as silicone. In some embodiments, the nipple 104 includes 5 nipple protrusions 126. In some embodiments, the nipple 104 includes 4 to 7 nipple protrusions 126. In some embodiments, the nipple 104 includes 5 to 7 nipple protrusions 126. In some embodiments, the nipple 104 includes 6 to 7 nipple protrusions 126.

[0055] In some embodiments, the nipple 104 includes 4 to 6 nipple protrusions 126. In some embodiments, the nipple 104 includes 4 to 5 nipple protrusions 126. In some embodiments, the nipple 104 includes 5 to 6 nipple protrusions 126.

[0056] In some embodiments, the at least one nipple protrusion 126 is randomly positioned and spaced apart on the inner surface 138 of the distal end of the nipple portion 116. In some embodiments, each of the at least one nipple protrusion 126 has a different length.

[0057] In some embodiments, the diameter of each of the at least one nipple protrusion 126 is 1.2 mm to 1.5 mm. In some embodiments, the diameter of each of the at least one nipple protrusion 126 is 1.25 mm to 1.5 mm. In some embodiments, the diameter of each of the at least one nipple protrusion 126 is 1.3 mm to 1.5 mm. In some embodiments, the diameter of each of the at least one nipple protrusion 126 is 1.4 mm to 1.5 mm.

[0058] In some embodiments, the diameter of each of the at least one nipple protrusion 126 is 1.2 mm to 1.4 mm. In some embodiments, the diameter of each of the at least one nipple protrusion 126 is 1.2 mm to 1.3 mm. In some embodiments, the diameter of each of the at least one nipple protrusion 126 is 1.2 mm to 1.25 mm.

[0059] In some embodiments, the diameter of each of the at least one nipple protrusion 126 is 1.3 mm to 1.4 mm. In some embodiments, the diameter of each of the at least one nipple protrusion 126 is 1.25 mm to 1.3 mm. In some embodiments, the diameter of each of the at least one nipple protrusion 126 is 1.24 mm to 1.4 mm.

[0060] In some embodiments, each of the at least one nipple protrusion 126 has a length of 9 mm to 12 mm. In some embodiments, each of the at least one nipple protrusion 126 has a length of 10 mm to 12 mm. In some embodiments, each of the at least one nipple protrusion 126 has a length of 11 mm to 12 mm.

[0061] In some embodiments, each of the at least one nipple protrusion 126 has a length of 9 mm to 11 mm. In some embodiments, each of the at least one nipple protrusion 126 has a length of 9 mm to 10 mm. In some embodiments, each of the at least one nipple protrusion 126 has a length of 10 mm to 11 mm.

[0062] In some embodiments, the material of the nipple 104 includes PVC plastic, latex, or a silicone-based material (eg, silicone, silicone copolymer, or medical grade silicone).

[0063] Figure 4-5 An exemplary flow valve 108 according to an embodiment of the disclosure is depicted. In some embodiments, the flow rate of fluid flowing through the feeding device 100 is controlled by the flow valve 108. In some embodiments, the flow valve 108 is configured to adjust the flow rate of fluid through the nipple to simulate a flow rate similar to that of a mother's infant during breastfeeding. Thus, the flow valve 108 helps reduce nipple confusion. In some embodiments, the flow valve 108 is disc-shaped, such as Figure 4 In some embodiments, the flow valve 108 includes a hard plastic ring 130 overmolded with a flexible layer 132. In some embodiments, the flexible layer 132 covers the central hole 148 of the hard plastic ring 130, such as Figure 5 As depicted, a disc-shaped flow valve 108 is formed. Thus, in some embodiments, the flow valve 108 has a hard outer ring and a soft center portion. In some embodiments, the flow valve 108 includes a central opening 134. In some embodiments, the flow valve 108 includes more than one central opening 134. For example, in Figure 4 In some embodiments, the flow valve 108 includes three central openings 134. In some embodiments, the central openings 134 control the flow rate of fluid from the fluid reservoir 102 through the nipple 104 and out of the teat portion 116.

[0064] In some embodiments, the hard plastic ring 130 is made of polyphenylsulfone. In some embodiments, the hard plastic ring 130 is made of other medical grade plastics.

[0065] In some embodiments, flexible layer 132 is made of silicone.

[0066] In some embodiments, the flow valve 108 includes at least one valve protrusion 128 extending from the first surface 136 of the flexible layer 132, such as Figure 4-5 In some embodiments, at least one valve protrusion 128 supports the inner surface 150 of the nipple 104, such as Figure 3 As depicted, when the infant pushes the nipple upward to initiate sucking, it helps prevent the nipple from collapsing or turning inward. In some embodiments, the at least one valve protrusion 128 also simulates the internal texture of breast tissue. Typically, existing commercial nipples are hollow structures that require the use of higher hardness and thicker silicone materials to prevent the nipple from collapsing. Compared to natural breast tissue, this higher hardness and thickness can cause the nipple to have an unnatural feel. Therefore, the nipple 104 disclosed in the present invention uses a thinner material and, with the support of at least one valve protrusion 128, provides a more natural feel. In addition, the at least one valve protrusion 128 can be perceived through the translucent surface of the nipple at the areola portion 115, simulating the Montgomery gland tubercles in the human anatomy and creating a realistic visual representation of a human breast, such as Figure 6As depicted. Thus, at least one valve protrusion 128 helps prevent nipple confusion. In some embodiments, the flexible layer 132 has 16 valve protrusions. In some embodiments, the flexible layer 132 has 12 to 24 valve protrusions 128. In some embodiments, the flexible layer 132 has 14 to 24 valve protrusions 128. In some embodiments, the flexible layer 132 has 16 to 24 valve protrusions 128. In some embodiments, the flexible layer 132 has 18 to 24 valve protrusions 128. In some embodiments, the flexible layer 132 has 20 to 24 valve protrusions 128. In some embodiments, the flexible layer 132 has 22 to 24 valve protrusions 128.

[0067] In some embodiments, the flexible layer 132 has 12 to 22 valve protrusions 128. In some embodiments, the flexible layer 132 has 12 to 20 valve protrusions 128. In some embodiments, the flexible layer 132 has 12 to 18 valve protrusions 128. In some embodiments, the flexible layer 132 has 12 to 16 valve protrusions 128. In some embodiments, the flexible layer 132 has 12 to 14 valve protrusions 128.

[0068] In some embodiments, the flexible layer 132 has 14 to 22 valve protrusions 128. In some embodiments, the flexible layer 132 has 14 to 20 valve protrusions 128. In some embodiments, the flexible layer 132 has 16 to 18 valve protrusions 128. In some embodiments, the flexible layer 132 has 16 to 22 valve protrusions 128. In some embodiments, the flexible layer 132 has 14 to 16 valve protrusions 128. In some embodiments, the flexible layer 132 has 14 to 18 valve protrusions 128. In some embodiments, the flexible layer 132 has 18 to 20 valve protrusions 128.

[0069] In some embodiments, at least one valve protrusion 128 is made of a flexible material, such as silicone. In some embodiments, at least one valve protrusion 128 is made of the same material as the flexible layer 132. In some embodiments, at least one valve protrusion 128 and the flexible layer 132 are formed as an integral structure.

[0070] In some embodiments, the diameter of each of the at least one valve protrusion 128 is between 1.5 mm and 2.0 mm. In some embodiments, the diameter of each of the at least one valve protrusion 128 is between 1.6 mm and 2.0 mm. In some embodiments, the diameter of each of the at least one valve protrusion 128 is between 1.7 mm and 2.0 mm. In some embodiments, the diameter of each of the at least one valve protrusion 128 is between 1.8 mm and 2.0 mm. In some embodiments, the diameter of each of the at least one valve protrusion 128 is between 1.9 mm and 2.0 mm.

[0071] In some embodiments, the diameter of each of the at least one valve protrusion 128 is 1.5 mm to 1.9 mm. In some embodiments, the diameter of each of the at least one valve protrusion 128 is 1.5 mm to 1.8 mm. In some embodiments, the diameter of each of the at least one valve protrusion 128 is 1.5 mm to 1.7 mm. In some embodiments, the diameter of each of the at least one valve protrusion 128 is 1.5 mm to 1.6 mm.

[0072] In some embodiments, the diameter of each of the at least one valve protrusion 128 is 1.6 mm to 1.9 mm. In some embodiments, the diameter of each of the at least one valve protrusion 128 is 1.7 mm to 1.9 mm. In some embodiments, the diameter of each of the at least one valve protrusion 128 is 1.8 mm to 1.9 mm. In some embodiments, the diameter of each of the at least one valve protrusion 128 is 1.6 mm to 1.8 mm. In some embodiments, the diameter of each of the at least one valve protrusion 128 is 1.7 mm to 1.8 mm. In some embodiments, the diameter of each of the at least one valve protrusion 128 is 1.6 mm to 1.7 mm.

[0073] In some embodiments, the length of each of the at least one valve protrusion 128 is 5 mm to 9 mm. In some embodiments, the length of each of the at least one valve protrusion 128 is 6 mm to 9 mm. In some embodiments, the length of each of the at least one valve protrusion 128 is 7 mm to 9 mm. In some embodiments, the length of each of the at least one valve protrusion 128 is 8 mm to 9 mm.

[0074] In some embodiments, each of the at least one valve protrusion 128 has a length of 5 mm to 8 mm. In some embodiments, each of the at least one valve protrusion 128 has a length of 5 mm to 7 mm. In some embodiments, each of the at least one valve protrusion 128 has a length of 5 mm to 6 mm.

[0075] In some embodiments, each of the at least one valve protrusion 128 has a length of 6 mm to 8 mm. In some embodiments, each of the at least one valve protrusion 128 has a length of 6 mm to 7 mm. In some embodiments, each of the at least one valve protrusion 128 has a length of 7 mm to 8 mm.

[0076] In some embodiments, the flow valve 108 is shaped and sized to be located within the interior space of the nipple 104, such as Figure 2-3 Depicted.

[0077] In some embodiments, the nipple 104 includes an annular groove 120 extending around its inner surface, such as Figure 3 Depicted. In some embodiments, the annular groove 120 is configured to hold the flow valve 108 therein. In some embodiments, when the flow valve 108 is located in the annular groove 120, a fluid seal is formed between the flow valve 108 and the wall 142 of the nipple, thereby forming a fluid-tight inner cavity. Due to the fluid seal formed between the flow valve 108 and the nipple wall 142, the fluid can only flow into the inner cavity 144 through the central opening 134 of the flow valve. Therefore, the fluid flow rate depends on the size of the central opening and can be controlled by the size of the central opening. In some embodiments, the flow valve 108 is inserted into the annular groove 120 by pressing the hard plastic ring 130 to fit it into the annular groove 120.

[0078] In some embodiments, the diameter of the flow valve 108 is the same as or slightly larger than the diameter of the annular groove 120, so that the flow valve 108 can be press-fitted and retained in the annular groove 120. In some embodiments, the diameter of the annular groove 120 is 56.7 mm. In some embodiments, the diameter of the annular groove 120 is 50 mm to 60 mm. In some embodiments, the diameter of the annular groove 120 is 52 mm to 60 mm. In some embodiments, the diameter of the annular groove 120 is 54 mm to 60 mm. In some embodiments, the diameter of the annular groove 120 is 56 mm to 60 mm. In some embodiments, the diameter of the annular groove 120 is 58 mm to 60 mm.

[0079] In some embodiments, the diameter of the annular groove 120 is 50 mm to 58 mm. In some embodiments, the diameter of the annular groove 120 is 50 mm to 56 mm. In some embodiments, the diameter of the annular groove 120 is 50 mm to 54 mm. In some embodiments, the diameter of the annular groove 120 is 50 mm to 52 mm.

[0080] In some embodiments, the diameter of the annular groove 120 is 55 mm to 58 mm. In some embodiments, the diameter of the annular groove 120 is 53 mm to 56 mm. In some embodiments, the diameter of the annular groove 120 is 52 mm to 54 mm. In some embodiments, the diameter of the annular groove 120 is 56 mm to 58 mm.

[0081] In some embodiments, the diameter of each central opening is 0.15mm. In some embodiments, the diameter of each central opening is 0.10mm to 0.2mm. In some embodiments, the diameter of each central opening is 0.12mm to 0.2mm. In some embodiments, the diameter of each central opening is 0.14mm to 0.2mm. In some embodiments, the diameter of each central opening is 0.15mm to 0.2mm. In some embodiments, the diameter of each central opening is 0.16mm to 0.2mm. In some embodiments, the diameter of each central opening is 0.18mm to 0.2mm.

[0082] In some embodiments, the diameter of each central opening is 0.10 mm to 0.18 mm. In some embodiments, the diameter of each central opening is 0.10 mm to 0.16 mm. In some embodiments, the diameter of each central opening is 0.10 mm to 0.15 mm. In some embodiments, the diameter of each central opening is 0.10 mm to 0.14 mm. In some embodiments, the diameter of each central opening is 0.10 mm to 0.12 mm.

[0083] In some embodiments, the diameter of each central opening is 0.12mm to 0.18mm. In some embodiments, the diameter of each central opening is 0.15mm to 0.18mm. In some embodiments, the diameter of each central opening is 0.15mm to 0.16mm. In some embodiments, the diameter of each central opening is 0.14mm to 0.15mm. In some embodiments, the diameter of each central opening is 0.12mm to 0.16mm.

[0084] In some embodiments, the disclosure relates to a kit comprising a feeding device 100 and at least two interchangeable flow valves 108. In some embodiments, the kit comprises three flow valves with different flow rates. In some embodiments, each of the three flow valves has at least one central opening. In some embodiments, the flow valve 108 corresponding to infants of 0 to 3 months has a single central opening. In some embodiments, the flow valve 108 corresponding to infants of 3 to 6 months has two central openings. In some embodiments, the flow valve 108 corresponding to infants of 6 months and above has three central openings. In some embodiments, each central opening has the same diameter, so that as the number of central openings on the flow valve 108 increases, the fluid flow rate through the flow valve 108 also increases.

[0085] In some embodiments, the flow rate through the 0 month to 3 month flow valve is 6mL / min. In some embodiments, the flow rate through the 0 month to 3 month flow valve is 4mL / min to 8mL / min. In some embodiments, the flow rate through the 0 month to 3 month flow valve is 4mL / min to 7mL / min. In some embodiments, the flow rate through the 0 month to 3 month flow valve is 4mL / min to 6mL / min. In some embodiments, the flow rate through the 0 month to 3 month flow valve is 4mL / min to 5mL / min.

[0086] In some embodiments, the flow rate through the 0 month to 3 month flow valve is 5 mL / min to 8 mL / min. In some embodiments, the flow rate through the 0 month to 3 month flow valve is 6 mL / min to 8 mL / min. In some embodiments, the flow rate through the 0 month to 3 month flow valve is 7 mL / min to 8 mL / min.

[0087] In some embodiments, the flow rate through the 0 month to 3 month flow valve is 5 mL / min to 7 mL / min. In some embodiments, the flow rate through the 0 month to 3 month flow valve is 5 mL / min to 6 mL / min. In some embodiments, the flow rate through the 0 month to 3 month flow valve is 6 mL / min to 7 mL / min.

[0088] In some embodiments, the flow rate through the 3-month to 6-month flow valve is 9 mL / min. In some embodiments, the flow rate through the 3-month to 6-month flow valve is 7 mL / min to 11 mL / min. In some embodiments, the flow rate through the 3-month to 6-month flow valve is 8 mL / min to 11 mL / min. In some embodiments, the flow rate through the 3-month to 6-month flow valve is 9 mL / min to 11 mL / min. In some embodiments, the flow rate through the 3-month to 6-month flow valve is 10 mL / min to 11 mL / min.

[0089] In some embodiments, the flow rate through the 3-month to 6-month flow valve is 7 mL / min to 10 mL / min. In some embodiments, the flow rate through the 3-month to 6-month flow valve is 7 mL / min to 9 mL / min. In some embodiments, the flow rate through the 3-month to 6-month flow valve is 7 mL / min to 8 mL / min.

[0090] In some embodiments, the flow rate through the 3-month to 6-month flow valve is 8 mL / min to 10 mL / min. In some embodiments, the flow rate through the 3-month to 6-month flow valve is 8 mL / min to 9 mL / min. In some embodiments, the flow rate through the 3-month to 6-month flow valve is 9 mL / min to 10 mL / min.

[0091] In some embodiments, the flow rate through the flow valve of 6 months and above is 12mL / min. In some embodiments, the flow rate through the flow valve of 6 months and above is 10mL / min to 14mL / min. In some embodiments, the flow rate through the flow valve of 6 months and above is 11mL / min to 14mL / min. In some embodiments, the flow rate through the flow valve of 6 months and above is 12mL / min to 14mL / min. In some embodiments, the flow rate through the flow valve of 6 months and above is 13mL / min to 14mL / min.

[0092] In some embodiments, the flow rate through the flow valve for 6 months and above is 10 mL / min to 13 mL / min. In some embodiments, the flow rate through the flow valve for 6 months and above is 10 mL / min to 12 mL / min. In some embodiments, the flow rate through the flow valve for 6 months and above is 10 mL / min to 11 mL / min.

[0093] In some embodiments, the flow rate through the flow valve for 6 months and above is 11 mL / min to 13 mL / min. In some embodiments, the flow rate through the flow valve for 6 months and above is 11 mL / min to 12 mL / min. In some embodiments, the flow rate through the flow valve for 6 months and above is 12 mL / min to 13 mL / min.

[0094] Figures 7 to 10 An exemplary flow valve 208 according to an embodiment of the disclosure is depicted. In some embodiments, the flow rate of fluid through the feeding device 100 is controlled by the flow valve 208. In some embodiments, the flow valve 208 is configured to adjust the flow rate of fluid flowing through the nipple to simulate a similar flow rate during breastfeeding of a mother's infant. Thus, the flow valve 208 helps reduce nipple confusion. In some embodiments, the flow valve 208 is dome-shaped, such as Figure 7 In some embodiments, the flow valve 208 includes a hard plastic ring 230 covered with a flexible layer 232. In some embodiments, the flexible layer 232 covers the central hole 248 of the hard plastic ring 230, such as Figure 8104, to form a disc-shaped flow valve 208. Thus, in some embodiments, the flow valve 208 has a hard outer ring and a soft center portion. In some embodiments, the flow valve 208 includes a central opening 234. In some embodiments, the flow valve 208 includes more than one central opening 234. In some embodiments, the central opening 234 controls the flow rate of fluid from the fluid reservoir 102 through the nipple 104 and out of the teat portion 116.

[0095] In some embodiments, the hard plastic ring 230 is made of polyphenylsulfone. In some embodiments, the hard plastic ring 230 is made of other medical grade plastics.

[0096] In some embodiments, flexible layer 232 is made of silicone.

[0097] In some embodiments, the flexible layer 232 of the flow valve 208 has a wavy profile due to at least one ridge or "bump" in the flexible layer 232, such as Figure 7 and Fig. 9 In some embodiments, each of the at least one valve protrusion 228 is formed as a ridge or dome, such as Figures 7 to 9 In some embodiments, at least one valve protrusion 228 supports the inner surface 150 of the nipple 104, such as Fig.10 As depicted, when the infant pushes the nipple upward to establish sucking, it helps prevent the nipple from collapsing or turning inward. In some embodiments, the at least one valve protrusion 228 also simulates the internal texture and visual appearance of breast tissue, as described above with respect to valve protrusion 128. Thus, the at least one valve protrusion 228 helps prevent nipple confusion.

[0098] In some embodiments, the flexible layer 232 has 16 valve protrusions 228. In some embodiments, the flexible layer 232 has 12 to 24 valve protrusions 228. In some embodiments, the flexible layer 232 has 14 to 24 valve protrusions 228. In some embodiments, the flexible layer 232 has 16 to 24 valve protrusions 228. In some embodiments, the flexible layer 232 has 18 to 24 valve protrusions 228. In some embodiments, the flexible layer 232 has 20 to 24 valve protrusions 228. In some embodiments, the flexible layer 232 has 22 to 24 valve protrusions 228.

[0099] In some embodiments, the flexible layer 232 has 12 to 22 valve protrusions 228. In some embodiments, the flexible layer 232 has 12 to 20 valve protrusions 228. In some embodiments, the flexible layer 232 has 12 to 18 valve protrusions 228. In some embodiments, the flexible layer 232 has 12 to 16 valve protrusions 228. In some embodiments, the flexible layer 232 has 12 to 14 valve protrusions 228.

[0100] In some embodiments, the flexible layer 232 has 14 to 22 valve protrusions 228. In some embodiments, the flexible layer 232 has 14 to 20 valve protrusions 228. In some embodiments, the flexible layer 232 has 16 to 18 valve protrusions 228. In some embodiments, the flexible layer 232 has 16 to 22 valve protrusions 228. In some embodiments, the flexible layer 232 has 14 to 16 valve protrusions 228. In some embodiments, the flexible layer 232 has 14 to 18 valve protrusions 228. In some embodiments, the flexible layer 232 has 18 to 20 valve protrusions 228.

[0101] In some embodiments, the at least one valve protrusion 228 is made of the same material as the at least one valve protrusion 128 described above.

[0102] In some embodiments, the diameter of each of the at least one valve protrusion 228 is between 2 mm and 5 mm. In some embodiments, the diameter of each of the at least one valve protrusion 228 is between 2.5 mm and 5 mm. In some embodiments, the diameter of each of the at least one valve protrusion 228 is between 3 mm and 5 mm. In some embodiments, the diameter of each of the at least one valve protrusion 228 is between 3.5 mm and 5 mm. In some embodiments, the diameter of each of the at least one valve protrusion 228 is between 4 mm and 5 mm. In some embodiments, the diameter of each of the at least one valve protrusion 228 is between 4.5 mm and 5 mm.

[0103] In some embodiments, the diameter of each of the at least one valve protrusion 228 is between 2 mm and 4.5 mm. In some embodiments, the diameter of each of the at least one valve protrusion 228 is between 2 mm and 4 mm. In some embodiments, the diameter of each of the at least one valve protrusion 228 is between 2 mm and 3.5 mm. In some embodiments, the diameter of each of the at least one valve protrusion 228 is between 2 mm and 3 mm. In some embodiments, the diameter of each of the at least one valve protrusion 228 is between 2 mm and 2.5 mm.

[0104] In some embodiments, the diameter of each of at least one valve protrusion 228 is between 2.5 mm and 4.5 mm. In some embodiments, the diameter of each of at least one valve protrusion 228 is between 2.5 mm and 4 mm. In some embodiments, the diameter of each of at least one valve protrusion 228 is between 2.5 mm and 3.5 mm. In some embodiments, the diameter of each of at least one valve protrusion 228 is between 2.5 mm and 3 mm. In some embodiments, the diameter of each of at least one valve protrusion 228 is between 3 mm and 4.5 mm. In some embodiments, the diameter of each of at least one valve protrusion 228 is between 3 mm and 4 mm. In some embodiments, the diameter of each of at least one valve protrusion 228 is between 3 mm and 3.5 mm. In some embodiments, the diameter of each of at least one valve protrusion 228 is between 3.5 mm and 4.5 mm. In some embodiments, the diameter of each of at least one valve protrusion 228 is between 3.5 mm and 4 mm. In some embodiments, the diameter of each of at least one valve protrusion 228 is between 4 mm and 4.5 mm.

[0105] In some embodiments, each of the at least one valve protrusion 228 has a length of 1 mm to 4 mm. In some embodiments, each of the at least one valve protrusion 228 has a length of 1.5 mm to 4 mm. In some embodiments, each of the at least one valve protrusion 228 has a length of 2 mm to 4 mm. In some embodiments, each of the at least one valve protrusion 228 has a length of 2.5 mm to 4 mm. In some embodiments, each of the at least one valve protrusion 228 has a length of 3 mm to 4 mm. In some embodiments, each of the at least one valve protrusion 228 has a length of 3.5 mm to 4 mm.

[0106] In some embodiments, each of the at least one valve protrusion 228 has a length of 1 mm to 3.5 mm. In some embodiments, each of the at least one valve protrusion 228 has a length of 1 mm to 3 mm. In some embodiments, each of the at least one valve protrusion 228 has a length of 1 mm to 2.5 mm. In some embodiments, each of the at least one valve protrusion 228 has a length of 1 mm to 2 mm. In some embodiments, each of the at least one valve protrusion 228 has a length of 1 mm to 1.5 mm.

[0107] In some embodiments, each of at least one valve protrusion 228 has a length of 1.5 mm to 3.5 mm. In some embodiments, each of at least one valve protrusion 228 has a length of 1.5 mm to 3 mm. In some embodiments, each of at least one valve protrusion 228 has a length of 1.5 mm to 2.5 mm. In some embodiments, each of at least one valve protrusion 228 has a length of 1.5 mm to 2 mm. In some embodiments, each of at least one valve protrusion 228 has a length of 2 mm to 3.5 mm. In some embodiments, each of at least one valve protrusion 228 has a length of 2 mm to 3 mm. In some embodiments, each of at least one valve protrusion 228 has a length of 2 mm to 2.5 mm. In some embodiments, each of at least one valve protrusion 228 has a length of 2.5 mm to 3.5 mm. In some embodiments, each of at least one valve protrusion 228 has a length of 2.5 mm to 3 mm. In some embodiments, each of at least one valve protrusion 228 has a length of 3 mm to 3.5 mm.

[0108] In some embodiments, the flow valve 208 is shaped and sized to be located within the interior space of the nipple 104, such as Fig.10 Depicted.

[0109] In some embodiments, the flow valve 208 is located in the annular groove 120 of the nipple 104 in the same manner as the flow valve 108. Therefore, in some embodiments, when the flow valve 208 is located in the annular groove 120, a fluid seal is formed between the flow valve 208 and the wall 142 of the nipple, thereby forming a fluid-tight inner cavity. Due to the fluid seal formed between the flow valve 208 and the nipple wall 142, the fluid can only flow into the inner cavity 144 through the central opening 238 of the flow valve. Therefore, the flow rate of the fluid depends on the size of the central opening 238 and can be controlled by the size of the central opening 238. In some embodiments, the flow valve 208 is inserted into the annular groove 120 by pressing the hard plastic ring 230 to fit into the annular groove 120.

[0110] In some embodiments, as described above with respect to the flow valve 108 , the diameter of the flow valve 208 is the same as or slightly larger than the diameter of the annular groove 120 so that the flow valve 108 can be press-fitted and retained in the annular groove 120 .

[0111] In some embodiments, the disclosure relates to a kit comprising a feeding device 100 and at least two interchangeable flow valves 208. In some embodiments, the kit comprises three flow valves 208 having different flow rates. In some embodiments, each of the three flow valves 208 has at least one central opening. In some embodiments, each of the three flow valves has a single central opening of different diameters.

[0112] In some embodiments, the diameter of the central opening of the first flow valve in the flow valve 208 corresponding to the 0-3 month old baby is 0.18 mm to 0.22 mm. In some embodiments, the diameter of the 0-3 month flow valve is 0.19 mm to 0.22 mm. In some embodiments, the diameter of the 0-3 month flow valve is 0.20 mm to 0.22 mm. In some embodiments, the diameter of the 0-3 month flow valve is 0.21 mm to 0.22 mm.

[0113] In some embodiments, the diameter of the 0-3 month flow valve is 0.18 mm to 0.21 mm. In some embodiments, the diameter of the 0-3 month flow valve is 0.18 mm to 0.20 mm. In some embodiments, the diameter of the 0-3 month flow valve is 0.18 mm to 0.19 mm.

[0114] In some embodiments, the diameter of the 0-3 month flow valve is 0.19 mm to 0.21 mm. In some embodiments, the diameter of the 0-3 month flow valve is 0.19 mm to 0.2 mm. In some embodiments, the diameter of the 0-3 month flow valve is 0.20 mm to 0.21 mm.

[0115] In some embodiments, the second flow valve in the flow valve 208 corresponding to a 3- to 6-month-old infant has a central opening with a diameter of 0.23 mm to 0.27 mm. In some embodiments, the diameter of the 3- to 6-month flow valve is 0.24 mm to 0.27 mm. In some embodiments, the diameter of the 3- to 6-month flow valve is 0.25 mm to 0.27 mm. In some embodiments, the diameter of the 3- to 6-month flow valve is 0.26 mm to 0.27 mm.

[0116] In some embodiments, the diameter of the 3-6 month flow valve is 0.23 mm to 0.26 mm. In some embodiments, the diameter of the 3-6 month flow valve is 0.23 mm to 0.25 mm. In some embodiments, the diameter of the 3-6 month flow valve is 0.23 mm to 0.24 mm.

[0117] In some embodiments, the diameter of the 3-6 month flow valve is 0.24 mm to 0.26 mm. In some embodiments, the diameter of the 3-6 month flow valve is 0.24 mm to 0.25 mm. In some embodiments, the diameter of the 3-6 month flow valve is 0.25 mm to 0.26 mm.

[0118] In some embodiments, the diameter of the central opening of the third flow valve 208 corresponding to a 6- to 12-month-old infant is 0.28 mm to 0.32 mm. In some embodiments, the diameter of the 6- to 12-month-old flow valve is 0.29 mm to 0.32 mm. In some embodiments, the diameter of the 6- to 12-month-old flow valve is 0.30 mm to 0.32 mm. In some embodiments, the diameter of the 6- to 12-month-old flow valve is 0.31 mm to 0.32 mm.

[0119] In some embodiments, the diameter of the 6-12 month flow valve is 0.28 mm to 0.31 mm. In some embodiments, the diameter of the 6-12 month flow valve is 0.28 mm to 0.30 mm. In some embodiments, the diameter of the 6-12 month flow valve is 0.28 mm to 0.29 mm.

[0120] In some embodiments, the diameter of the 6-12 month flow valve is 0.29 mm to 0.31 mm. In some embodiments, the diameter of the 6-12 month flow valve is 0.29 mm to 0.30 mm. In some embodiments, the diameter of the 6-12 month flow valve is 0.30 mm to 0.31 mm.

[0121] In some embodiments, the flow rate through the 0 month to 3 month flow valve is 6mL / min. In some embodiments, the flow rate through the 0 month to 3 month flow valve is 4mL / min to 8mL / min. In some embodiments, the flow rate through the 0 month to 3 month flow valve is 4mL / min to 7mL / min. In some embodiments, the flow rate through the 0 month to 3 month flow valve is 4mL / min to 6mL / min. In some embodiments, the flow rate through the 0 month to 3 month flow valve is 4mL / min to 5mL / min.

[0122] In some embodiments, the flow rate through the 0 month to 3 month flow valve is 5 mL / min to 8 mL / min. In some embodiments, the flow rate through the 0 month to 3 month flow valve is 6 mL / min to 8 mL / min. In some embodiments, the flow rate through the 0 month to 3 month flow valve is 7 mL / min to 8 mL / min.

[0123] In some embodiments, the flow rate through the 0 month to 3 month flow valve is 5 mL / min to 7 mL / min. In some embodiments, the flow rate through the 0 month to 3 month flow valve is 5 mL / min to 6 mL / min. In some embodiments, the flow rate through the 0 month to 3 month flow valve is 6 mL / min to 7 mL / min.

[0124] In some embodiments, the flow rate through the 3-month to 6-month flow valve is 9 mL / min. In some embodiments, the flow rate through the 3-month to 6-month flow valve is 7 mL / min to 11 mL / min. In some embodiments, the flow rate through the 3-month to 6-month flow valve is 8 mL / min to 11 mL / min. In some embodiments, the flow rate through the 3-month to 6-month flow valve is 9 mL / min to 11 mL / min. In some embodiments, the flow rate through the 3-month to 6-month flow valve is 10 mL / min to 11 mL / min.

[0125] In some embodiments, the flow rate through the 3-month to 6-month flow valve is 7 mL / min to 10 mL / min. In some embodiments, the flow rate through the 3-month to 6-month flow valve is 7 mL / min to 9 mL / min. In some embodiments, the flow rate through the 3-month to 6-month flow valve is 7 mL / min to 8 mL / min.

[0126] In some embodiments, the flow rate through the 3-month to 6-month flow valve is 8 mL / min to 10 mL / min. In some embodiments, the flow rate through the 3-month to 6-month flow valve is 8 mL / min to 9 mL / min. In some embodiments, the flow rate through the 3-month to 6-month flow valve is 9 mL / min to 10 mL / min.

[0127] In some embodiments, the flow rate through the flow valve of 6 months and above is 12mL / min. In some embodiments, the flow rate through the flow valve of 6 months and above is 10mL / min to 14mL / min. In some embodiments, the flow rate through the flow valve of 6 months and above is 11mL / min to 14mL / min. In some embodiments, the flow rate through the flow valve of 6 months and above is 12mL / min to 14mL / min. In some embodiments, the flow rate through the flow valve of 6 months and above is 13mL / min to 14mL / min.

[0128] In some embodiments, the flow rate through the flow valve for 6 months and above is 10 mL / min to 13 mL / min. In some embodiments, the flow rate through the flow valve for 6 months and above is 10 mL / min to 12 mL / min. In some embodiments, the flow rate through the flow valve for 6 months and above is 10 mL / min to 11 mL / min.

[0129] In some embodiments, the flow rate through the flow valve for 6 months and above is 11 mL / min to 13 mL / min. In some embodiments, the flow rate through the flow valve for 6 months and above is 11 mL / min to 12 mL / min. In some embodiments, the flow rate through the flow valve for 6 months and above is 12 mL / min to 13 mL / min.

[0130] In some embodiments, when fully constructed, the diameter of the nipple 104 is 3 inches to 3.5 inches; or 3.1 inches to 3.5 inches; or 3.2 inches to 3.5 inches; or 3.3 inches to 3.5 inches; or 3.4 inches to 3.5 inches; or 3 inches to 3.4 inches; or 3 inches to 3.3 inches; or 3 inches to 3.2 inches; or 3 inches to 3.1 inches; or 3.1 inches to 3.4 inches; or 3.2 inches to 3.4 inches; or 3.3 inches to 3.4 inches; or 3.2 inches to 3.4 inches; or 3.2 inches to 3.3 inches.

[0131] In some embodiments, the height of the nipple 104 (i.e., the dimension from the bottom of the base portion 114 to the distal end of the nipple portion 116) is 1.75 inches to 2 inches; or 1.8 inches to 2 inches; or 1.85 inches to 2 inches; or 1.9 inches to 2 inches; or 1.95 inches to 2 inches; or 1.75 inches to 1.95 inches; or 1.75 inches to 1.9 inches; or 1.75 inches to 1.85 inches; or 1.75 inches to 1.8 inches; or 1.8 inches to 1.95 inches; or 1.8 inches to 1.9 inches; or 1.8 inches to 1.85 inches; or 1.9 inches to 1.95 inches.

[0132] In some embodiments, the nipple 104 is integrally constructed by 3D printing. 3D printing provides a cost-effective way to construct various components, such as the at least one nipple protrusion 126 and the at least one valve protrusion 128, which are so small that they are cost-prohibitive to produce by many other methods (such as extrusion).

[0133] In some embodiments, the connecting collar 106 is used to fix the nipple 104 in a suitable position on the feeding device 100, wherein the flow valve 108 is inserted therein, such as Fig.11In some embodiments, the connecting collar 106 includes an internal thread 140, such as Fig.12 As shown, the internal threads 140 are configured to mate with threads on the neck portion 110 of the fluid reservoir 102. In some embodiments, the nipple 104 is seated within the connecting collar 106, and the connecting collar 106 is screwed onto the threads of the fluid reservoir 102 to fluid-seal the nipple 104 to the fluid reservoir 102, thereby forming a closed feeding device 100. The final assembly of the feeding device 100 is Figure 2 and Fig.10 is best shown in .

[0134] In some embodiments, the disclosure relates to a kit comprising a feeding device 100 and at least two interchangeable flow valves 108. In some embodiments, the kit comprises three flow valves 108 with different flow rates. That is, in some embodiments, each of the three flow valves 108 has at least one central opening. In some embodiments, the flow valve 108 corresponding to infants of 0 to 3 months has a single central opening. In some embodiments, the flow valve 108 corresponding to infants of 3 to 6 months has two central openings. In some embodiments, the flow valve 108 corresponding to infants of 6 months and above has three central openings. In some embodiments, the diameter of each central opening is the same, so that as the number of central openings on the flow valve 108 increases, the fluid flow rate through the flow valve 108 also increases.

[0135] In some embodiments, an artificial nipple structure can be replaced with a pacifier that closely resembles the mother's actual nipple structure. The resulting nipple structure accurately reproduces the mother's nipple structure in an active state. For example, the pacifier can be printed as an integrally formed article on a base section that includes a disc with a notch to accommodate the baby's nose when the baby sucks on the pacifier, together with a cylindrical base connected to a grip ring.

[0136] The disclosure of the application has been generally described above, and has been described in detail for specific embodiments. For those skilled in the art, it is apparent that various modifications and variations can be made to the embodiments without departing from the scope of the disclosure. Therefore, these embodiments are intended to encompass modifications and variations of the present invention, as long as they fall within the scope of the appended claims and their equivalents.

Claims

1. A feeding device, include: Fluid reservoirs; a nipple configured to be attached to the fluid reservoir; The nipple comprises: base part; nipple part; wherein the base portion and the nipple portion together define an interior space of the nipple; a removable flow valve configured to be located within the interior space of the nipple; an inner cavity located between the removable flow valve and a wall of the nipple; The removable flow valve comprises: Center opening; and at least one valve protrusion extending from a surface of the flow valve into the inner cavity; Wherein, the removable flow valve is configured to adjust the flow rate of the fluid from the fluid reservoir into the inner cavity.

2. The feeding device of claim 1, wherein the nipple includes an annular groove on an inner surface thereof, the annular groove being configured to removably retain the flow valve therein.

3. The feeding device of claim 2, wherein the flow valve forms a fluid seal with the annular groove.

4. The feeding device according to claim 1, wherein the flow valve include: a hard plastic ring defining an outer diameter of the flow valve; and Soft overmoulded layer.

5. The feeding device of claim 1, wherein the at least one valve protrusion has a length of 5 mm to 9 mm.

6. The feeding device of claim 1, wherein the at least one valve protrusion has a diameter of 1.5 mm to 2.0 mm.

7. The feeding device of claim 1, wherein the at least one valve protrusion is randomly spaced on the surface of the flow valve.

8. The feeding device of claim 1, wherein the nipple further comprises at least one nipple protrusion extending proximally from an inner surface of a distal end of the teat portion.

9. The feeding device of claim 8, wherein the at least one nipple protrusion has a length of 9 mm to 12 mm.

10. The feeding device of claim 8, wherein the at least one nipple protrusion has a diameter of 1.2 mm to 1.5 mm.

11. The feeding device of claim 1 , wherein the surface of the flow valve has a wavy contour formed by the at least one nipple protrusion.

12. A kit, include: at least two flow valves including different flow rates; Each of the at least two flow valves comprises: at least one central opening having a diameter; at least one valve protrusion extending from a surface of each of the at least two flow valves; A feeding device, comprising: Fluid reservoirs; a nipple configured to be attached to the fluid reservoir; The nipple comprises: base part; nipple part; wherein the base portion and the nipple portion together define an interior space of the nipple; wherein the nipple is configured to retain one of the at least two flow valves within the interior space of the nipple; wherein an inner cavity is formed between said one of said at least two flow valves and said nipple; The at least two flow valves are configured to adjust a flow rate of the fluid from the fluid reservoir into the inner cavity.

13. The kit of claim 12, wherein each of the at least two flow valves has a different number of central openings such that each of the at least two flow valves has a different fluid flow rate.

14. The kit of claim 12, wherein each of the at least two flow valves has a single central opening, wherein each of the central openings has a different diameter such that each of the at least two flow valves has a different fluid flow rate.

15. The kit of claim 12, wherein each of the at least two flow valves has a central opening, wherein each of the central openings has a different diameter and a different fluid flow rate.

16. The kit of claim 12, wherein the nipple includes an annular groove on an inner surface thereof, the annular groove configured to removably retain the one of the at least two flow valves therein.

17. The kit of claim 16, wherein said one of said at least two flow valves forms a fluid seal with said annular groove.

18. The kit of claim 12, wherein each of the at least two flow valves include: a hard plastic ring defining an outer diameter of the flow valve; and Soft overmoulded layer.

19. A pacifier, include: base part; nipple part; wherein the base portion and the nipple portion together define an interior space of the nipple; a removable flow valve configured to be located within the interior space of the nipple; an inner cavity located between the removable flow valve and the nipple; The removable flow valve comprises: Center opening; and at least one valve protrusion extending from a surface of the flow valve into the inner cavity; Wherein the removable flow valve is configured to regulate the flow rate of fluid through the nipple.

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