CN104013534A - Artificial nipple and feeding bottle with same - Google Patents

Abstract

The present invention provides an artificial pacifier and a breastfeeder having the artificial pacifier, which can adjust the breastfeeding time or the flow rate of a drink suitable for a baby in a simple manner. The artificial pacifier (2) has: the artificial pacifier body (7); the first ventilation part (5), which has a plurality of ventilation holes (53, 54, 55) with mutually different opening areas under the same differential pressure; the second The ventilation part (6), which has a ventilation hole (67), and the artificial teat (2) is installed on the body of the breastfeeder that contains the drink, and it is characterized in that by making the ventilation hole (67) of the second ventilation part (6) opposite It is selectively communicated with a plurality of vent holes (53, 54, 55) of the first vent part (5), so that the gas flowing into the breastfeeder (1) from outside the breastfeeder (1) can be adjusted through the connected vent holes. flow.

Description

Artificial pacifiers and breastfeeders with artificial pacifiers

technical field

The invention relates to an artificial nipple and a nursing device with the artificial nipple.

Background technique

When breastfeeding an infant, an artificial nipple attached to a breastfeeding apparatus body containing a bottle of baby drink such as milk or previously pumped breast milk and the like are widely used. As the baby latches on to the artificial nipple and sucks in order to express milk from the breastfeeder, the pressure in the breastfeeder will decrease as the drink is reduced. As the pressure in the breastfeeder decreases, it will gradually become more difficult for the baby to express. Therefore, an artificial nipple having a check valve capable of introducing outside air into the breastfeeder so that the pressure inside the breastfeeder does not drop, and a breastfeeder having the artificial nipple are known (Patent Document 1).

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2011-92551

However, the artificial pacifier and the breastfeeder with the artificial pacifier described in Patent Document 1 have only a single one-way valve. It is adjusted in such a way that the flow rate of the air flowing into the breastfeeder is reduced. Therefore, the greater the differential pressure between the inside and outside of the breastfeeder, the greater the flow rate of air flowing into the breastfeeder. Therefore, the amount of drink that the baby can inhale in one sucking action also increases, but the situation that the amount of drink is too much is also bad for the baby. In other words, in the case of a baby with a strong sucking force during breastfeeding, the time required to drink up the drink in the breastfeeder (lactification time) is shortened. On the other hand, in the case of a baby whose sucking force at the time of sucking is weak, the sucking time will be prolonged. Therefore, in the artificial nipple and the breastfeeder having the artificial nipple described in Patent Document 1, it is impossible to properly adjust the breastfeeding time according to the suction force of the baby, that is, according to the differential pressure between the inside and outside of the breastfeeder.

Contents of the invention

An object of the present invention is to provide an artificial pacifier and a breastfeeder having the artificial pacifier, which can adjust the breastfeeding time and the flow rate of a drink suitable for a baby in a simple manner.

According to one aspect of the present invention, there is provided an artificial pacifier comprising: an artificial pacifier body; a first ventilation member having a plurality of ventilation holes with mutually different opening areas under the same differential pressure; a second ventilation member having Having a vent hole, the artificial teat is mounted on the body of the breastfeeder that contains the drink, and the artificial teat is characterized in that by making the vent hole of the second vent part relative to the vent hole of the first vent part The plurality of vent holes are selectively communicated, so that the flow rate of gas flowing into the breastfeeder from outside the breastfeeder through the communicated vent holes can be adjusted.

That is, in the present embodiment, the ventilation holes of the second ventilation member are appropriately and selectively communicated with the plurality of ventilation holes of the first ventilation member in accordance with the sucking force of the baby during breastfeeding, thereby Regulates the flow of air into the breastfeeder from outside. For example, in the case of a baby with a strong sucking force during breastfeeding, the ventilation holes of the first ventilation member are selected so that the flow rate of air flowing into the breastfeeder from outside the breastfeeder is reduced. As a result, the pressure in the breastfeeder that has decreased due to sucking does not rise so much, and the amount of drink that the baby can inhale through one sucking action can be reduced. On the other hand, in the case of a baby whose sucking force is weak during breastfeeding, the ventilation holes of the first ventilation member are selected so that the flow rate of air flowing into the breastfeeder from outside the breastfeeder increases. As a result, the pressure in the breastfeeder, which has been reduced by sucking, rises rapidly, so that the amount of drink that the baby can inhale through one pumping action can be increased. Therefore, it is possible to adjust the breastfeeding time and the flow rate of the drink suitable for the baby in a simple manner. In addition, the suitable lactation time in this specification means, for example, the case where it takes about 15 to 20 minutes to drink up the drink in the breastfeeder.

In addition, according to another aspect of the present invention, an artificial pacifier is provided, wherein the plurality of ventilation holes of the first ventilation component or the ventilation holes of the second ventilation component are one-way valves .

That is, in this embodiment, since the plurality of ventilation holes of the first ventilation member or the ventilation holes of the second ventilation member are check valves, it is possible to prevent drinks from passing through the connected ventilation holes in the breastfeeding device. And the case of leakage.

In addition, according to another aspect of the present invention, an artificial pacifier is provided, characterized in that the first ventilation part and the second ventilation part are formed in a circular and flat shape, so that the artificial pacifier body can pass through the The first ventilation part and the second ventilation part are installed on the body of the breastfeeder, and the communication of the ventilation hole is realized by overlapping the first ventilation part and the second ventilation part.

That is, in the present embodiment, since the artificial nipple is attached to the breastfeeder body via the first and second ventilation members formed in a circle and flat shape, it can be adjusted with a simple mechanism. Appropriate timing of lactation or flow of drinks.

In addition, according to another aspect of the present invention, an artificial pacifier is provided, wherein each of the plurality of ventilation holes of the first ventilation member is formed as one of a concave portion or a convex portion , and the ventilation hole of the second ventilation part is formed as the other of the concave part or the convex part, and through the embedding of the concave part and the convex part of the first ventilation part and the second ventilation part Combine to realize the communication of the vent holes.

That is, in the present embodiment, since the communication of the ventilation holes is realized by fitting the concave and convex portions of the first ventilation member and the second ventilation member, the communication of the ventilation holes can be realized more reliably.

Furthermore, according to another aspect of the present invention, there is provided a breastfeeding device including the artificial teat and a breastfeeding device body of the above-mentioned aspect.

According to the present invention, a common effect of being able to adjust the appropriate lactation timing, the flow rate of a drink, and the like for a baby in a simple manner is obtained.

Description of drawings

Fig. 1 is a perspective view of a breastfeeder according to an embodiment of the present invention.

Fig. 2 is a partial longitudinal sectional view of an artificial teat including the breastfeeder of Fig. 1 .

Fig. 3 is a top view of the mounting parts of the breastfeeder of Fig. 1 .

FIG. 4 is a front view of the mounting part of FIG. 3 .

Fig. 5 is a cross-sectional view along line A-A of the mounting part of Fig. 3 .

Fig. 6 is a top view of the first ventilating part of the artificial teat of the nursing device of Fig. 1 .

Fig. 7 is a bottom view of the first ventilation part of Fig. 6 .

FIG. 8 is a cross-sectional view along line A-A of the first ventilation member of FIG. 6 .

Fig. 9 is a cross-sectional view of the first ventilation part of Fig. 6 along line B-B.

Fig. 10 is a cross-sectional view along line C-C of the first ventilation part of Fig. 7 .

Fig. 11 is a top view of the second ventilation part of the artificial teat of the breastfeeding device of Fig. 1 .

Fig. 12 is a front view of the second ventilation part of Fig. 11 .

FIG. 13 is a cross-sectional view of the second ventilation member of FIG. 11 along line A-A.

Fig. 14 is a top view of the artificial nipple body of the artificial nipple of the nursing device of Fig. 1 .

Fig. 15 is a front view of the artificial nipple body in Fig. 14 .

FIG. 16 is a right side view of the artificial teat body of FIG. 14 .

Fig. 17 is a cross-sectional view of the artificial teat body of Fig. 14 along line A-A.

Fig. 18 is a cross-sectional view of the artificial teat body of Fig. 16 along line B-B.

Fig. 19 is a perspective view showing fitting of the first ventilation member and the second ventilation member.

Fig. 20 is a diagram illustrating flow measurement of the breastfeeder shown in Fig. 1 .

Detailed ways

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In all the drawings, a common reference sign is attached|subjected to the corresponding structural element.

FIG. 1 is a perspective view of a breastfeeding device 1 according to an embodiment of the present invention, and FIG. 2 is a partial longitudinal sectional view of an artificial teat 2 including the breastfeeding device 1 of FIG. 1 . In addition, in this specification, in describing each component of the breastfeeding device 1 , "upper" or "lower" is specified based on the arrangement inside the breastfeeding device 1 in a state standing on a horizontal plane.

The breastfeeding device 1 has an artificial teat 2 , a mounting part 3 , and a breastfeeding device body 4 . The artificial teat 2 has a first ventilation member 5 as an exhaust member, a second ventilation member 6 as an exhaust stopper, and an artificial teat body 7 . The breastfeeder main body 4 is a bottle or the like for containing baby beverages such as milk or previously pumped breast milk, and is formed of, for example, glass or hard synthetic resin. The pacifier body 7 is attached to the breastfeeder body 4 via the first ventilation member 5 and the second ventilation member 6 . As will be described later, the artificial nipple body 7 is fixed by screwing the mounting member 3 to the breastfeeder body 4 .

3 is a top view of the mounting part 3 of the nursing device 1 in FIG. 1 , FIG. 4 is a front view of the mounting part 3 of FIG. 3 , and FIG. 5 is a cross-sectional view of the mounting part 3 of FIG. 3 along line A-A.

The mounting member 3 is a cylindrical member, and is formed by integrally molding a hard synthetic resin such as polypropylene. The mounting member 3 has a mounting member body 31 and an annular flange portion 32 extending radially inward from the upper end of the mounting member body 31 . The flange portion 32 defines an upper opening 33 . The artificial teat 2 protrudes upward through the opening 33 . An annular fitting protrusion 34 ( FIG. 5 ) extending downward is formed on the lower surface of the flange portion 32 . As will be described later, the fitting protrusion 34 is fitted into the fitting groove 75a of the pacifier main body 7 . An opening 35 having a larger diameter than the upper opening 33 is defined on the lower end edge of the mounting member body 31 . On the inner peripheral surface of the attachment member body 31 , an internal thread portion 36 is formed that is screwed to the external thread portion 41 ( FIG. 2 ) provided on the outer peripheral surface of the upper end portion of the breastfeeder body 4 .

Fig. 6 is a top view of the first ventilation part 5 of the artificial nipple 2 of the nursing device 1 of Fig. 1, Fig. 7 is a bottom view of the first ventilation part 5 of Fig. 6, and Fig. 8 is a line of the first ventilation part 5 of Fig. 6 A-A sectional view, FIG. 9 is a sectional view along line B-B of the first ventilation component 5 in FIG. 6 , and FIG. 10 is a sectional view along line C-C of the first ventilation component 5 in FIG. 7 .

The first ventilation member 5 is a circular and flat member, and is formed by integrally molding an elastic material such as soft synthetic resin, for example, a silicone resin. An annular flange portion 51 extending radially outward is provided below the outer peripheral surface of the first ventilation member 5 . In addition, four circular fitting holes 52 a , 52 b , 52 c , and 52 d are formed on the upper surface of the first ventilation member 5 . The respective fitting holes 52 a , 52 b , 52 c , and 52 d are arranged at equal intervals around the central axis of the first ventilation member 5 . Check valves 53 , 54 , and 55 are respectively provided in the respective fitting holes 52 a , 52 b , 52 c , and 52 d. A check valve is not provided in the fitting hole 52d, but is closed. Therefore, it can be said that the first ventilation member 5 has three ventilation holes 53 , 54 , 55 as check valves 53 , 54 , 55 . In addition, a closed protrusion 56 is formed on the back surface of the first ventilation member 5 corresponding to the fitting hole 52d, and an opening 57 is formed at the center of the first ventilation member 5 .

Each one-way valve 53, 54, 55 has a pair of valve bodies. For example, as shown in FIGS. 7 and 10 , the one-way valve 53 has a pair of valve bodies 53a, 53b. The valve bodies 53a and 53b are plate-shaped movable pieces extending obliquely downward from the inner peripheral surface of the fitting hole 52a. Between the top ends of the respective valve bodies 53a, 53b, a slit 53 extending in the radial direction of the first ventilation member 5 is formed. FIG. 8 is a cross-sectional view through the slit 53c, therefore, the slit 53c is not shown in FIG. 8, and only the valve body 53a is shown. Partition walls 53d are formed around the valve bodies 53a and 53b on the lower surface of the first ventilation member 5 .

Normally, as shown in FIG. 10, the valve bodies 53a and 53b close the slit 53c so as to have a wedge-shaped cross section. Therefore, the pressure generated by the flow of gas or the like from below to above the first ventilation member 5 acts in a direction to further close the valve bodies 53a, 53b. That is, the slit 53c is kept closed so that the one-way valve is closed against the flow of gas or the like from below to above the first ventilation member 5 . On the other hand, the pressure generated by the flow of gas or the like from above to below the first ventilation member 5 acts in a direction in which the distal ends of the valve bodies 53a, 53b are separated from each other. Therefore, the slit 53 c is opened, and the check valve 53 is opened to the flow of gas or the like from above to below the first ventilation member 5 .

The other one-way valves 54 and 55 are similar to the one-way valve 53 in terms of basic structure and operation other than the shape of the valve body, so the description will be simplified. The one-way valve 54 has a pair of valve bodies 54a, 54b. The valve bodies 54a and 54b are curved movable pieces extending obliquely downward from the inner peripheral surface of the fitting hole 52b. A slit 54c extending in the radial direction of the first ventilation member 5 is formed between the tip ends of the respective valve bodies 54a, 54b. Partition walls 54d are formed around the valve bodies 54a and 54b on the lower surface of the first ventilation member 5 . Normally, the valve bodies 54a and 54b close the slit 54c so as to have an arcuate cross-section. That is, normally, the valve bodies 54a, 54b form a convex curved surface as a whole.

The one-way valve 55 has a pair of valve bodies 55a, 55b. The valve bodies 55a and 55b are plate-shaped movable pieces extending laterally from the inner peripheral surface of the fitting hole 52c. A gap 55c extending in the radial direction of the first ventilation member 5 is formed between the top ends of the respective valve bodies 55a, 55b. Partition walls 55 d are formed around the valve bodies 55 a and 55 b on the lower surface of the first ventilation member 5 . Normally, the slit 55c is closed so that the valve bodies 55a and 55b have linear cross-sections. That is, the valve bodies 55a, 55b form one plane as a whole.

The pressure generated by the flow of gas or the like required to open the three check valves 53, 54, 55, that is, the pressure generated by the flow of gas or the like required to open the respective slits 53c, 54c, 55c increases sequentially. This situation depends on the magnitude of the component force of the force acting in the direction of separating the top ends of the respective valve bodies when the pair of valve bodies is subjected to the pressure of the flow of gas or the like from above to below the first ventilation member 5. . When each one-way valve is subjected to the same pressure in the flow direction that makes it open, that is, when it is arranged under the same differential pressure, it is arranged in a wedge shape for the magnitude of the component force of the force acting on each valve body. The valve body arranged in an arc shape is larger than the valve body arranged in an arc shape, and the valve body arranged in an arc shape is larger than the valve body arranged in a linear shape. Therefore, the opening areas of the respective slits 53c, 54c, and 55c are sequentially reduced when arranged under the same differential pressure, and the flow rates of the check valves 53, 54, and 55 are also sequentially reduced.

Fig. 11 is a plan view of the second ventilation part 6 of the artificial teat 2 of the nursing device 1 in Fig. 1 . FIG. 12 is a front view of the second ventilation member 6 of FIG. 11 , and FIG. 13 is a cross-sectional view of the second ventilation member 6 of FIG. 11 along line A-A.

The second ventilation member is a circular and flat member formed by integrally molding a hard synthetic resin such as polypropylene. An annular support wall 62 extending upward is formed near the opening 61 on the upper surface of the second ventilation member 6 . In addition, an annular peripheral wall 63 extending downward from the outer peripheral edge portion is formed on the lower surface of the second ventilation member 6 . Therefore, on the lower surface of the second ventilation member 6, a recessed portion 64 defined by a peripheral wall is formed. As will be described later, the first ventilation member 5 is fitted into the concave portion 64 .

A hollow boss portion 65 extending downward is formed at a portion of the portion of the lower surface corresponding to the portion of the upper surface of the second ventilation member 6 forming the support wall 62 . On the upper surface of the second ventilation member 6, a groove 66 having a semicircular cross section extending radially inward from the outer peripheral surface of the second ventilation member 6 is formed. The semicircular groove 66 communicates with the hollow boss 65 to form a communication hole 67 .

Fig. 14 is a top view of the artificial nipple body 7 of the artificial nipple 2 of the nursing device 1 of Fig. 1, Fig. 15 is a front view of the artificial nipple body 7 of Fig. 14, and Fig. 16 is a right side view of the artificial nipple body 7 of Fig. 14, Fig. 17 is a sectional view of the artificial pacifier body 7 of Fig. 14 along line A-A, and Fig. 18 is a sectional view of the artificial pacifier body 7 of Fig. 16 along line B-B.

The pacifier main body 7 is a hollow member as a whole, and is formed by integrally molding an elastic material such as soft synthetic resin, for example, silicone resin. The artificial teat body 7 has a base 71 , a first teat abdomen 72 , a second teat abdomen 73 , and a teat section 74 . The base portion 71 has a flange portion 75 , a neck portion 76 , and an overhang portion 77 .

The flange portion 75 extends in a ring shape radially outward from the lower end of the cylindrical neck portion 76 . On the upper surface of the flange portion 75 , an annular fitting groove 75 a is formed to fit the fitting protrusion 34 provided on the lower surface of the flange portion 32 of the mounting member 3 ( FIG. 2 ). The outer diameter of the flange portion 75, the outer diameter of the flange portion 51 of the first ventilation member 5, and the outer diameter of the second ventilation member 6 are substantially the same. The inner diameter of the opening 78 of the flange portion 75 , the inner diameter of the opening 57 of the first ventilation member 5 , and the inner diameter of the opening 61 of the second ventilation member 6 are substantially the same ( FIG. 2 ).

The neck portion 76 is formed to be slightly longer in the axial direction than the wall thickness of the flange portion 32 of the mounting member 3 so as to be fitted into the opening 33 of the mounting member 3 . In addition, the outer diameter of the neck portion 76 is formed to be slightly smaller than that of the lower flange portion 75 and the upper hanging portion 77 .

The overhanging portion 77 is an annular convex curved surface whose diameter gradually increases as it goes upward from the upper end of the neck portion 76, and reaches through the annular portion having the largest outer diameter in the overhanging portion 77, that is, the largest diameter portion 77a. First nipple belly 72 . In addition, the hanging portion 77 may be formed in the shape of an annular flange extending radially outward from the upper end of the neck portion 76 .

The first nipple belly 72 , the second nipple belly 73 , and the nipple portion 74 have a generally conical shape with the tip of the nipple portion 74 as an apex as a whole. The centerline axis C1 of the substantially conical shape is inclined toward the upper jaw with respect to the center axis C2 of the base 71 . In other words, in the pacifier body 7, the base portion 71, that is, the portion below the maximum diameter portion 77a of the overhanging portion 77 has a rotationally symmetrical tubular shape centered on the central axis C2, and the maximum diameter portion 77a The upper part has a shape in which a substantially conical body is obliquely arranged on the base part 71 . Therefore, the breastfeeder 1 in the present invention has directionality for proper use, and it is necessary to hold the baby so that the right side is on the upper jaw side and the left side is on the lower jaw side in FIG. 16 during breastfeeding. In this embodiment, the inclination angle is 7°, but other angles are also possible.

The first pacifier abdomen 72 and the second pacifier abdomen 73 are ring-shaped convex curved surfaces whose diameter gradually decreases as they go upward. The first pacifier belly 72 and the second pacifier belly 73 are divided by a first thin waist portion 79 formed of an annular concave curved surface. In other words, the first pacifier belly 72 and the second pacifier belly 73 , both of which are convex curved surfaces, are continuously connected by the first thin waist portion 79 . Therefore, the first nipple abdomen 72 is divided and formed by the largest diameter portion 77 a of the hanging portion 77 and the first thin waist portion.

The nipple portion 74 has a substantially spherical shape, and a breast hole 74 a ( FIG. 14 ) is formed as a through hole for breastfeeding near the top on the palate side. Since the breast hole 74a is arranged near the roof on the side of the palate, it is possible to prevent the outflowing drink from directly reaching deep in the throat when the baby sucks. The teat opening 74a is preferably arranged at a position where the beverage that flows out passes the palate to the throat. A concave curved surface 74b is formed in an upper part of the nipple part 74 on the lower jaw side. The concave curved surface 74b is formed at an angle inclined further toward the upper jaw side than the central axis C1.

The second pacifier abdomen 73 and the nipple part 74 are divided by the second thin waist part 80 formed of an annular concave curved surface. In other words, the second nipple abdomen 73 which is a convex curved surface and the substantially spherical nipple portion 74 are continuously connected by the second narrow waist portion 80 . Therefore, the second nipple belly 73 is divided and formed by the first thin waist portion 79 and the second thin waist portion 80 .

Next, other features of the artificial pacifier main body 7 will be described while describing the breastfeeding movement of the baby holding the pacifier main body 7 . The baby sucks and extrudes drink from the artificial teat body 7 through the peristaltic movement of the tongue. At this time, the baby pushes and rolls the artificial nipple main body 7 to the upper palate with the tip of the protruding tongue, and transmits the protuberance deep into the throat. That is, the surface of the pacifier main body 7 on the side of the lower jaw is pressed by the raised portion of the tongue while moving from below to upward through the raised portion of the tongue. The degree of freedom of movement of the tongue can be improved by adjusting the softness and hardness of the path of the tongue in the pacifier body 7 , that is, the area R of the mandible side shown in FIGS. 14 and 15 . As a result, as a function of the pacifier main body 7 itself, it is possible to induce peristaltic movement of the baby's tongue, thereby allowing the baby to perform breastfeeding movements smoothly. This point will be described with reference to FIG. 17 .

The baby's breastfeeding movement starts with the action of pressing the protruding tip of the tongue against the lower jaw side portion of the second nipple abdomen 73 , that is, the abutting portion 73 a. Therefore, first of all, it is necessary to form the artificial teat body 7 in such a way that the part is easy to squeeze. This can be achieved by the presence of a cavity 81 formed by the inner surface of the overhang 77 and the inner surface of the first teat belly 72 . That is, when the contact portion 73a of the second nipple belly 73 is pressed by the tip of the protruding tongue, the upper portion of the first nipple belly 72 is elastically deformed toward the cavity. Next, as the top of the protruding tongue moves upward, the upper part of the first nipple abdomen 72 will recover, and this restoring force will assist the upward movement of the tongue. At this time, in the interior of the artificial teat body 7 , the beverage will be gradually compressed toward the nipple 73 .

The position where the second nipple abdomen 73 should be formed to be easily squeezed next to the starting point of the baby's breastfeeding movement is the boundary area between the nipple part 74 and the second thin waist part 80, that is, the concave surface of the nipple part 74. Part K of the lower end of 74b. This can be achieved by making the front and rear of the portion K in the path of the tongue sweep, ie the upper part J of the second thin waist 80 and the center C of the concave surface 74b of the nipple 74, thinner. By forming the portion K at the lower end of the concave curved surface 74 to be easily squeezed, the drink can be efficiently flowed out from the teat hole 74a. In one embodiment, the upper part J of the second thin waist portion 80 is set to a wall thickness of 0.9 mm, the center C of the concave curved surface 74 b of the nipple portion 74 is set to a wall thickness of 0.8 mm, and the concave curved surface 74 b of the nipple portion 74 is set to a wall thickness of 0.8 mm. The part at the lower end is set to have a wall thickness of 1.3 mm.

In addition, the baby's breastfeeding movement ends by pressing the tip of the protruding tongue to the tip of the nipple 74 and then returns to the starting point again. The tip of the tongue will slip off just before reaching the end point, thereby breaking away from the path, so that the drink cannot flow out well. However, since the nipple portion 74 of the pacifier main body 7 has the above-mentioned concave curved surface 74b, the tip of the protruding tongue can be moved to the end without deviating from the path of the nipple portion 74.

The artificial pacifier body 7 has the above-mentioned various characteristic structures on the path where the baby's tongue passes, so it can induce the peristaltic movement of the baby's tongue so that the baby can breastfeed more smoothly.

In addition, the surface of the upper jaw side of the first nipple belly 72 and the second nipple belly 73 has a smaller projection of the convex curved surface than the surface of the lower jaw side. Therefore, the entire surface of the pacifier body 7 on the palate side is formed with less unevenness. Therefore, the palate side portion of the pacifier main body 7 can be in close contact with the baby's palate, and stable breastfeeding movement can be performed. In addition, since the part on the palate side of the pacifier body 7 is in close contact with the baby's palate, sucking can reliably reduce the pressure in the oral cavity, thereby enabling effective breastfeeding. Furthermore, since the surface of the pacifier main body 7 on the upper jaw side has less unevenness as a whole, it is possible to prevent the baby's upper lip from being caught inside the mouth due to friction with the pacifier main body 7 .

Furthermore, as described above, in the pacifier main body 7, the centerline axis C1 of the approximately vertebral body is inclined to the upper palate side with respect to the central axis C2 of the base 71, so that the part on the palate side of the pacifier main body 7 is in close contact with the pacifier body 7. A wide area and a large cavity portion 81 can be ensured on the lower jaw side of the artificial nipple body 7 in a state of touching the baby's upper jaw. As a result, the degree of freedom of movement of the tongue can be improved.

Since the pacifier main body 7 is formed of soft synthetic resin, it can be colored in various ways. Existing artificial teats are formed from clear or cloudy silicone. But the artificial teat body 7 can be colored with warm colors such as pink or flesh-colored or other colors. By coloring the artificial teat to a color other than transparent or cloudy, it is possible to prevent mixing it with other people's breastfeeding devices in a hospital or the like, and to improve visibility. Moreover, by coloring with warm colors, it can contribute to the increase of the baby's appetite, and can make a baby feel comfortable and kind. In addition, it is possible to provide a design or pattern by partially coloring the pacifier main body 7, thereby providing an pacifier excellent in design. In addition, methods such as engraving may be used instead of coloring. For example, as shown in FIG. 14 , characters such as "UP" indicating the upper side may be engraved in order to easily identify the direction in use.

FIG. 19 is a perspective view showing fitting of the first ventilation member 5 and the second ventilation member 6 . Before the breastfeeder 1 is installed, it is first necessary to fit the first ventilating part 5 and the second ventilating part 6 together. That is, as described above, the first ventilation member 5 has the three check valves 53 , 54 , and 55 corresponding to the ventilation holes. As mentioned above, since the flows obtained through the check valves 53, 54, 55 are different under the same differential pressure, an appropriate check valve should be selected. The ventilation member 6 is covered from the upper side with respect to the first ventilation member 5 by inserting the boss portion 65 of the second ventilation member 6 into the fitting hole of the selected one-way valve, thereby completing Chimeric. That is, the first ventilation member 5 is fitted into the concave portion 64 of the second ventilation member 6 , and at this time, the lower end surface of the peripheral wall 63 of the second ventilation member 6 is in contact with the upper surface of the flange portion 51 of the first ventilation member 5 . . As a result, one ventilation hole that communicates the upper and lower sides of the integrated first ventilation member 5 and second ventilation member 6, that is, a ventilation hole corresponding to the selected check valve, can be obtained. In other words, the first ventilation part 5 and the second ventilation part 6 constitute a flow regulating mechanism. In addition, the shape of the hollow boss portion 65 and the groove 66 of the second ventilation member 6 , that is, the shape of the ventilation hole 67 , etc., are designed so as not to hinder the flow of gas through the selected one-way valve.

In addition, before the nursing device 1 is attached, the artificial teat main body 7 is attached to the attaching member 3 . That is, the pacifier main body 7 is inserted through the opening 35 and the opening 33 from below the mounting member 3 . Since at least the outer diameter of the largest neck portion 77a of the hanging portion 77 of the pacifier body 7 is larger than the inner diameter of the opening 33 of the mounting member 3, the pacifier body 7 is inserted while being elastically deformed. Finally, the pacifier body 7 is inserted until the flange portion 32 of the mounting member 3 is arranged on the neck portion 76 of the pacifier body 7 . In the state where the installation of the pacifier body 7 relative to the mounting part 3 is completed ( FIG. 2 ), the fitting protrusion 34 of the flange part 32 of the mounting part 3 will be fitted with the fitting groove of the flange part 75 of the pacifier body 7 . 75a fit together. Therefore, even if the baby strongly bites and pulls the artificial pacifier main body 7 , the artificial pacifier main body 7 will not easily fall off from the mounting member 3 .

Here, in a state where the pacifier 2 is attached to the attachment member 3 , the flange portion 32 of the attachment member 3 is separated from the hanging portion 77 of the pacifier body 7 . Furthermore, since the diameter of the hanging portion 77 gradually increases upward from the upper end of the neck portion 76 , the distance between the two members increases as it goes outward in the radial direction. With this structure, even if the baby sucks the pacifier body 7 deeply, the lip will not be caught between the flange portion 32 of the mounting member 3 and the hanging portion of the pacifier body 7 .

The installation of the final breastfeeding device is described. First, on the opening end of the breastfeeding device body 4 filled with beverages, the first ventilation member 5 and the first breather part 5 and the first breather part 5, which are fitted with the one-way valve 53, are placed in advance in the above-mentioned manner. Two ventilation parts 6. Next, cover the pre-installed installation part 3 and the artificial nipple body 7 from above, and screw the installation part 3 to the breastfeeder body 4 to complete the installation ( FIG. 20 ). At this time, the support wall 62 formed on the upper surface of the second ventilation member 6 abuts against the lower end surface of the pacifier main body 7 . Therefore, when the mounting member 3 is screwed with respect to the breastfeeding device body 4, even if it is too tightly screwed by force, it is possible to prevent the upper surface of the second ventilation member 6 from coming into contact with the pacifier body 7. The situation that the lower end surface of the hood is in close contact can prevent the clogging of the vent hole 67.

When the baby sucks the artificial nipple 2 and the pressure in the breastfeeding device drops, a differential pressure will be generated between the inside and outside of the breastfeeding device 1 . The one-way valve is opened by this differential pressure, thereby passing through the gap between the internal thread portion 36 of the mounting part 3 and the external thread portion 41 of the breastfeeding device body 4, the vent hole 67, and finally the outside air through the one-way valve 53. Introduced into a breastfeeder. On the other hand, since the one-way valve 53 is provided, it is prevented that the beverage leaks from the breastfeeder 1 .

Fig. 20 is a diagram illustrating flow measurement of the breastfeeder shown in Fig. 1 . The measurement method is to put water at normal temperature into the breastfeeding device 1, suck it at a pressure of -13 kPa by the vacuum pump P, and measure the flow rate of the sucked water. The water sucked from the breastfeeding device 1 is contained in the container 100 . Regarding the case of ventilation through the wedge-shaped check valve 53, the case of ventilation through the circular check valve 54, and the case of ventilation through the linear check valve 55, the Results such as 26.1 (ml/min), 23.3 (ml/min), and 18.0 (ml/min). In addition, when the inside of the breastfeeding device 1 was not ventilated, that is, when the pressure inside the breastfeeding device 1 continued to drop, a result of 14.1 (ml/min) was obtained.

According to the above description, the ventilation holes 67 of the second ventilation member 6 are appropriately and selectively communicated with the ventilation holes 53, 54, 55 of the first ventilation member 5 by the suction force corresponding to the baby's breastfeeding. , so that the flow rate of the gas flowing into the breastfeeder 1 from outside can be adjusted. For example, in the case of a baby with a strong sucking force during breastfeeding, the ventilation hole 55 of the first ventilation member 5 is selected so that the flow rate of air flowing into the breastfeeder 1 from outside the breastfeeder 1 is reduced. As a result, the pressure in the breastfeeder 1 that has been reduced by sucking does not increase so much, and the amount of drink that the baby can inhale through one sucking action can be reduced. On the other hand, in the case of a baby whose sucking force is weak during breastfeeding, the air hole 53 of the first ventilation member 5 is selected so that the flow rate of air flowing into the breastfeeder 1 from outside the breastfeeder 1 is increased. As a result, the pressure in the breastfeeding device 1 that has dropped due to sucking will rise rapidly, and the amount of drink that the baby can suck through one sucking action increases. Therefore, it is possible to adjust the breastfeeding time and the flow rate of the drink suitable for the baby in a simple manner (for example, the time required to drink up the paint in the breastfeeder is about 15 to 20 minutes). In addition, since the communication of the ventilation hole is realized by the fitting of the concave portion (fitting hole) and the convex portion (boss portion) of the first ventilation member 5 and the second ventilation member 6, the communication of the ventilation hole can be realized more reliably. .

In addition, it is also possible to use a mechanism in which the communication of the ventilation holes is not realized by fitting the concave and convex portions of the first ventilation member and the second ventilation member, that is, there is no convex portion, but by aligning the ventilation holes of each other. way to achieve. In addition, it is also possible to set a plurality of hollow bosses extending upward on the upper surface of the first ventilation part, and set the one-way valve as described above in the bosses, and set it on the corresponding second ventilation part. Through holes for fitting etc. structure. In addition, because the adjustment of the flow rate under the same differential pressure is roughly equivalent to the adjustment of the opening area of the vent hole, it is also possible to simply set up the one-way valve with a different shape of the valve body as in the above-mentioned embodiment, and simply set the opposite The structure of a plurality of through-holes having different opening areas from the first ventilation member. In addition, when the first ventilation member has a plurality of through holes with different opening areas, a configuration may be adopted in which the check valve is provided only in the hollow boss portion of the second ventilation member. In the above embodiment, regarding the above flow regulating mechanism, the number of adjustable air holes may be three, or two or more.

The characteristics of the above-mentioned artificial nipple body can be applied not only to the above-mentioned breastfeeders, but also to existing types of breastfeeders.

Symbol Description

1: Nursing device;

2: Artificial pacifier;

3: Install parts;

4: Breastfeeding device body;

5: the first ventilation part;

6: the second ventilation part;

7: Artificial pacifier body;

53, 54, 55: ventilation holes;

67: Air vent.

Claims (5)

1. An artificial pacifier, having: Artificial pacifier body; a first ventilation member having a plurality of ventilation holes having mutually different opening areas under the same differential pressure; a second ventilation member having a ventilation hole, The artificial teat is installed on the body of the breastfeeder containing the drink, The artificial pacifier is characterized in that, By selectively communicating the ventilation holes of the second ventilation member with the plurality of ventilation holes of the first ventilation member, it is possible to adjust the ventilation from outside the breastfeeder through the connected ventilation holes. The flow rate of gas flowing into it. 2. The artificial teat of claim 1, wherein: The plurality of ventilation holes of the first ventilation member or the ventilation holes of the second ventilation member are one-way valves. 3. The artificial teat according to claim 1 or 2, characterized in that, The first ventilation part and the second ventilation part are formed in a circular and flat shape, so that the artificial teat body can be mounted on the breastfeeder body via the second ventilation part and the second ventilation part, and The communication of the ventilation hole is achieved by overlapping the first ventilation part and the second ventilation part. 4. An artificial teat as claimed in any one of claims 1 to 3, characterized in that Each of the plurality of ventilation holes of the first ventilation member is formed as one of a concave portion or a convex portion, and the ventilation hole of the second ventilation member is formed as one of the concave portion or the convex portion. The other one is to realize the communication of the ventilation hole through the fitting of the concave part and the convex part of the first ventilation part and the second ventilation part. 5. A breastfeeding device comprising the artificial teat and a breastfeeding device body according to any one of claims 1 to 4.