TWI622391B - Artificial pacifier and breastfeeding device with artificial pacifier - Google Patents

Abstract

The invention provides an artificial pacifier and a breastfeeding device that shakes the artificial pacifier, which can adjust the appropriate feeding time or the flow rate of beverages for infants and children in a simple method.

The artificial pacifier has: an artificial pacifier body; a first ventilation member having a plurality of ventilation holes, the plurality of ventilation holes having mutually different opening areas under the same pressure difference; and a second ventilation member having a ventilation hole; and The pacifier is mounted on a breastfeeder body for storing a drink, and is characterized in that the ventilation holes of the second ventilation member are selectively communicated with the plurality of ventilation holes of the first ventilation member, thereby adjusting the breastfeeding through the connected ventilation holes The flow of gas from the outside of the device to the inside.

Description

Artificial pacifier and breastfeeding device with artificial pacifier Field of invention

The invention relates to an artificial pacifier and a breastfeeding device having the same.

Artificial pacifiers installed in breastfeeders such as bottles containing formula milk or pre-extracted beverages for infants and young children, and breastfeeders with artificial pacifiers are widely used for feeding infants. When an infant is sucked from a breastfeeder with an artificial pacifier for feeding, the pressure in the breastfeeder decreases as the beverage decreases. As the pressure in the breastfeeder decreases, it becomes more difficult for infants and young children to feed. Therefore, in order to prevent the pressure in a breast pump from decreasing, an artificial pacifier and a breast pump having an artificial pacifier are known to have a check valve capable of introducing external air into the breast pump (Patent Document 1).

Know-how Patent literature

[Patent Document 1] Japanese Patent Laid-Open No. 2011-92551

Summary of invention

However, the artificial pacifier and the The pacifier has only a single check valve, so it cannot be adjusted to: corresponding to the decrease in the pressure in the breastfeeder, that is, the increase in the pressure difference between the inside and outside of the breastfeeder, which reduces the air flow into the breastfeeder. Therefore, the larger the pressure difference between the inside and outside of the breastfeeder, the greater the air flow into the breastfeeder. As a result, the amount of beverages that infants and young children can breastfeed in one feeding operation will also increase, but too much beverages are also inappropriate for infants and young children. In other words, in the case of infants and young children who have strong suction power during breastfeeding, the time required to finish drinking the beverage in the breastfeeder (feeding time) becomes shorter. On the other hand, in the case of infants with weak suction during feeding, the feeding time becomes longer. Therefore, the artificial pacifier and the breastfeeding device having the artificial pacifier described in Patent Document 1 cannot appropriately adjust the feeding time according to the suction power of infants, that is, the pressure difference between the inside and outside of the breastfeeder.

The purpose of the present invention is to provide an artificial pacifier and a breastfeeding device that shakes the artificial pacifier, which can adjust the appropriate feeding time or beverage flow rate for infants and children in a simple and convenient way.

According to one aspect of the present invention, an artificial pacifier is provided. The artificial pacifier has: an artificial pacifier body; a first ventilation member having a plurality of ventilation holes, and the plurality of ventilation holes have mutually different opening areas under the same pressure difference; ; And a second ventilating member having a ventilating hole; and the artificial nipple is mounted on a breastfeeder body containing a beverage, characterized in that the ventilating hole of the second ventilating member is opposite to the plurality of ventilating holes of the first ventilating member Selective communication, whereby the flow rate of gas flowing from the outside of the breastfeeder into the inside can be adjusted through the connected vent hole.

That is, in this aspect, it corresponds to the suction of infants during feeding. With force, the ventilation holes of the second ventilation member are appropriately selected and communicated with the plurality of ventilation holes of the first ventilation member, thereby adjusting the gas flow rate from the outside of the breastfeeder to the inside. For example, in the case of infants with strong suction during feeding, the vent holes of the first ventilation member are selected so that the flow rate of gas flowing from the outside of the breastfeeder into the interior is reduced. As a result, the pressure in the breastfeeder, which is lowered by suction, is not easy to rise, and the amount of beverages that can be breast-fed by an infant in a single feeding operation can be reduced. On the other hand, in the case of infants with weak suction during feeding, the ventilation holes of the first ventilation member are selected to increase the flow rate of gas flowing from the outside of the breastfeeder into the inside. As a result, the pressure in the breastfeeder, which has fallen due to suction, immediately rises, which can increase the amount of beverages that infants and young children can feed in one feeding operation. Therefore, it is possible to adjust the appropriate feeding time or beverage flow rate for infants in a simple manner. The proper feeding time in this specification means, for example, that the time required to finish drinking the beverage in the breastfeeder is about 15 to 20 minutes.

According to another aspect of the present invention, there is provided an artificial pacifier, in which the check valve of the plurality of ventilation holes of the first ventilation member or the ventilation hole of the second ventilation member is stopped.

That is, in this aspect, the plurality of ventilation holes of the first ventilation member or the check valves of the ventilation holes of the second ventilation member can prevent the beverage from leaking out of the breastfeeder through the communicating ventilation holes.

Furthermore, according to another aspect of the present invention, there is provided an artificial pacifier, wherein the artificial pacifier body is attached to the breastfeeder body through the first ventilation member and the second ventilation member, the first ventilation member and the second ventilation. The member is formed in a ring shape and a flat plate shape, and the communication of the ventilation holes is achieved by overlapping the first ventilation member and the second ventilation member. Row.

That is, in this aspect, the artificial pacifier is attached to the breastfeeder body through the first ventilation member and the second ventilation member which are formed in a ring shape and a flat plate shape, thereby making it possible to adjust a suitable feeding time for infants or children with a simple mechanism. Drink flow.

Furthermore, according to another aspect of the present invention, there is provided an artificial pacifier, 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 holes of the second ventilation member are formed as a concave portion or As another type of convex portion, the ventilation holes are communicated by fitting the concave portion and the convex portion of the first ventilation member and the second ventilation member.

That is, in this aspect, since the communication of the ventilation holes is performed 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 performed more reliably.

Furthermore, according to another aspect of the present invention, there is provided a breastfeeder having the artificial pacifier and the breastfeeder body as described above.

According to the present invention, it is possible to achieve a common effect of adjusting an appropriate feeding time or a beverage flow rate for infants and young children in a simple manner.

1‧‧‧Breastfeeder

2‧‧‧ Artificial pacifier

3‧‧‧Mounting member

4‧‧‧Breastfeeder body

5‧‧‧ 1st ventilation member

6‧‧‧ 2nd ventilation member

7‧‧‧ Artificial pacifier body

31‧‧‧Mounting body

32, 51, 75‧‧‧ flange

33, 35, 57, 61, 78‧‧‧ opening

34‧‧‧ mosaic protrusion

36‧‧‧Female Spiral Section

41‧‧‧ Male Spiral Department

52a, 52b, 52c, 52d‧‧‧‧fitting holes

53, 54, 55 ‧ ‧ ‧ check valve

53a, 53b, 54a, 54b, 55a, 55b

53c, 54c, 55c ‧‧‧ slit

53d, 54d, 55d

56‧‧‧ Sleeve

62‧‧‧ support wall

63‧‧‧Zhou Bi

64‧‧‧ recess

65‧‧‧ Sleeve

66‧‧‧ trench

67‧‧‧ Vent

71‧‧‧ base

72‧‧‧ 1st nipple body

73‧‧‧ 2nd pacifier body

73a‧‧‧Abutting Department

74‧‧‧ Nipple

74a‧‧‧ milk hole

74b‧‧‧ concave surface

75a‧‧‧ Chimeric groove

76‧‧‧ Head

77‧‧‧ protrusion

77a‧‧‧Maximum diameter

79‧‧‧ the first narrow part

80‧‧‧ 2nd narrow section

81‧‧‧ Hollow

100‧‧‧ container

C‧‧‧ Center of concave surface

C1‧‧‧ the central axis of a slightly cone

C2‧‧‧ the central axis of the base

J‧‧‧upper

K‧‧‧ lower end of concave surface

P‧‧‧Vacuum pump

R‧‧‧ Area of the side of the jaw

FIG. 1 is a perspective view of a breast pump according to an embodiment of the present invention.

FIG. 2 is a partial longitudinal sectional view of an artificial pacifier including the breastfeeder of FIG. 1. FIG.

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

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

Fig. 5 is a sectional view taken along the line A-A of the mounting member of Fig. 3;

FIG. 6 is a top view of a first ventilating member of the artificial pacifier of the breast pump of FIG. 1. FIG.

FIG. 7 is a bottom view of the first ventilation member of FIG. 6.

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

Fig. 9 is a sectional view taken along line B-B of the first ventilation member in Fig. 6.

Fig. 10 is a sectional view taken along the line C-C of the first ventilation member in Fig. 7.

FIG. 11 is a top view of the second ventilating member of the artificial pacifier of the breast pump of FIG. 1.

FIG. 12 is a front view of the second ventilation member of FIG. 11.

Fig. 13 is a sectional view taken along the line A-A of the second ventilation member in Fig. 11.

FIG. 14 is a top view of an artificial pacifier body of the artificial pacifier of the breast pump of FIG. 1.

FIG. 15 is a front view of the artificial pacifier body of FIG. 14. FIG.

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

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

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

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

FIG. 20 is a diagram illustrating flow measurement of the breast pump of FIG. 1. FIG.

Forms used to implement the invention

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Across the full illustration, the corresponding constituent elements are annotated with common reference characters number.

FIG. 1 is a perspective view of a breast pump 1 according to an embodiment of the present invention, and FIG. 2 is a partial longitudinal sectional view of the artificial teat 2 including the breast pump 1 of FIG. 1. In this specification, the description of each component of the breastfeeder 1 is based on the arrangement in the breastfeeder 1 in a state standing on a horizontal plane, and "up" and "down" are determined.

The breastfeeder 1 includes an artificial pacifier 2, a mounting member 3, and a breastfeeder body 4. The artificial pacifier 2 includes a first ventilation member 5 which is a vent member, a second ventilation member 6 which is a vent plug, and an artificial pacifier body 7. The breastfeeder body 4 is a bottle or the like that contains a baby's beverage such as formula milk or breast milk that has been squeezed in advance, and is formed of, for example, glass or rigid synthetic resin. The artificial pacifier body 7 is attached to the breastfeeder body 4 through the first ventilation member 5 and the second ventilation member 6, and is fixed by screwing the attachment member 3 to the breastfeeder body 4 as described later.

FIG. 3 is a top view of the mounting member 3 of the breastfeeder 1 of FIG. 1, FIG. 4 is a front view of the mounting member 3 of FIG. 3, and FIG. 5 is a cross-sectional view taken along the line A-A of the mounting member 3 of FIG. 3.

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 includes a mounting member body 31 and a ring-shaped flange portion 32 extending inward in the radial direction from the upper end of the mounting member body 31. The flange portion 32 defines an upper opening 33. The artificial pacifier 2 projects upward through the opening 33. A ring-shaped fitting protrusion 34 (FIG. 5) is formed below the flange portion 32 and extends downward. The fitting protrusion 34 is fitted into the fitting groove 75 a of the artificial pacifier body 7 as described later. Mounting member body 31 The lower end edge is formed with an opening 35 having a larger diameter than the upper opening 33. A female spiral portion 36 is formed on the inner peripheral surface of the mounting member body 31 and is screwed to a male spiral 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 member 5 of the artificial pacifier 2 of the breastfeeder 1 of FIG. 1, FIG. 7 is a bottom view of the first ventilation member 5 of FIG. 6, and FIG. 8 is a view of the first ventilation member 5 of FIG. 6. 9 is a cross-sectional view taken along line BB of the first ventilation member 5 of FIG. 6, and FIG. 10 is a cross-sectional view taken along line CC of the first ventilation member 5 of FIG. 7.

The first ventilation member 5 is a ring-shaped and flat plate-shaped member, and is formed by integrally molding an elastic material such as a soft synthetic resin such as a silicone resin. A ring-shaped flange portion 51 is provided below the outer peripheral surface of the first ventilation member 5 and extends radially outward. In addition, four circular fitting holes 52a, 52b, 52c, and 52d are formed on the first ventilation member 5. The fitting holes 52a, 52b, 52c, and 52d are arranged around the central axis of the first ventilation member 5 at equal intervals, respectively. Each of the fitting holes 52a, 52b, and 52c is provided with check valves 53, 54, and 55, respectively. A check valve is not provided in the middle of the fitting hole 52d and is closed. Therefore, it can be said that the first ventilation member 5 has three ventilation holes 53, 54, 55 as the check valves 53, 54, 55. A closed sleeve portion 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 in the center of the first ventilation member 5.

The check valves 53, 54, 55 each have a pair of valve bodies. For example, as shown in FIGS. 7 and 10, the check valve 53 includes a pair of valve bodies 53 a and 53 b. The valve bodies 53a, 53b are flat plates extending obliquely downward from the inner peripheral surface of the fitting hole 52a. Movable piece. A slit 53c is formed between the tip ends of the respective valve bodies 53a, 53b and extends along the radial direction of the first ventilation member 5. Since FIG. 8 is a sectional view passing through the slit 53c, the slit 53c is not shown in FIG. 8 and only the valve body 53a on one side is shown. A partition wall 53d is formed around the valve bodies 53a and 53b under the first ventilation member 5.

Usually, as shown in FIG. 10, the slit 53c is closed, and the valve bodies 53a and 53b are formed into a wedge-shaped cross section. Therefore, the pressure caused by the flow of the gas or the like from below the first ventilation member 5 to above acts on the direction in which the valve bodies 53a, 53b are closed. That is, the slit 53c is continuously closed, and the check valve 53 is closed with respect to the flow of gas or the like from below the first ventilation member 5 to above. On the other hand, the pressure caused by the flow from above to below the first ventilation member 5 acts in a direction where the front ends of the valve bodies 53a, 53b are separated from each other. Therefore, the slit 53c is opened, and the check valve 53 is opened with respect to the flow from above to below the first ventilation member 5.

Since the other check valves 54 and 55 have the same basic structure and operation as the check valve 53 except for the shape of the valve body, they will be briefly described. The check valve 54 includes a pair of valve bodies 54 a and 54 b. 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 54 c is formed between the front ends of the respective valve bodies 54 a and 54 b and extends along the radial direction of the first ventilation member 5. A partition wall 54d is formed around the valve bodies 54a and 54b under the first ventilation member 5. Usually, the slit 54c is closed, and the valve bodies 54a and 54b are formed into an arc-shaped cross section. That is, the valve bodies 54a and 54b are generally formed as a single convex curved surface as a whole.

The check valve 55 includes a pair of valve bodies 55a and 55b. Valve body 55a, 55b is a flat plate-shaped movable piece extending horizontally from the inner peripheral surface of the fitting hole 52c. A slit 55 c is formed between the tip ends of the respective valve bodies 55 a and 55 b and extends along the radial direction of the first ventilation member 5. A partition wall 55d is formed around the valve bodies 55a and 55b under the first ventilation member 5. Usually, the slit 55c is closed, and the valve bodies 55a and 55b form a linear cross section. That is, in general, the valve bodies 55a and 55b are formed as a single plane as a whole.

The pressure caused by the flow required for the opening of the three check valves 53, 54, 55 is gradually increased in accordance with the recorded order, that is, the pressure caused by the flow required for the opening of each of the slits 53 c, 54 c, and 55 c is gradually increased. . This is based on the magnitude of the component force of the force acting in a direction that separates the front ends of the valve bodies when a pair of valve bodies receives pressure caused by the flow from above to below the first ventilation member 5. When each check valve receives the same pressure in each open flow direction, that is, when it is arranged under the same pressure difference, the force component of the force acting on each valve body is a wedge-shaped valve The valve body must be larger, and the arc-shaped valve body is larger than the linear valve body. Therefore, when arranged under the same pressure difference, the opening areas of the slits 53c, 54c, and 55c gradually decrease in this order, and the flow rates of the check valves 53, 54, and 55 also decrease in this order.

FIG. 11 is a top view of the second ventilating member 6 of the artificial pacifier 2 of the breastfeeder 1 of FIG. 1, FIG. 12 is a front view of the second ventilating member 6 of FIG. 11, and FIG. 13 is a view of the second ventilating member 6 of FIG. 11. AA line cross section.

The second ventilation member 6 is a ring-shaped and flat plate-shaped member, and is formed by integrally molding a hard synthetic resin such as polypropylene. An annular support wall is formed near the opening 61 on the upper surface of the second ventilation member 6 and extends upward. 62. Further, an annular peripheral wall 63 is formed below the second ventilation member 6 and extends downward from the outer peripheral edge portion thereof. Therefore, a recess 64 formed by dividing the peripheral wall 63 is formed below the second ventilation member 6. The recessed portion 64 is fitted into the first ventilation member 5 as described later.

A part of the lower portion corresponding to the upper portion of the support wall 62 is formed on the second ventilation member 6, and a hollow sleeve portion 65 extending downward is formed. A semicircular groove 66 is formed in the upper surface of the second ventilation member 6 and has a semicircular cross section extending inward in the radial direction from the outer peripheral surface of the second ventilation member 6. The semicircular groove 66 in the cross section communicates with the hollow sleeve portion 65 and forms a vent hole 67.

14 is a top view of the artificial pacifier body 7 of the artificial pacifier 2 of the breastfeeder 1 of FIG. 1, FIG. 15 is a front view of the artificial pacifier body 7 of FIG. 14, and FIG. 16 is a right side view of the artificial pacifier body 7 of FIG. FIG. 17 is a cross-sectional view taken along line AA of the artificial pacifier body 7 of FIG. 14, and FIG. 18 is a cross-sectional view taken along line BB of the artificial pacifier body 7 of FIG. 16.

The artificial pacifier body 7 is a hollow member as a whole, and is formed by integrally molding an elastic material such as a soft synthetic resin such as silicone resin. The artificial pacifier body 7 includes a base portion 71, a first pacifier body portion 72, a second pacifier body portion 73, and a nipple portion 74. The base portion 71 includes a flange portion 75, a head portion 76, and a protruding portion 77.

The flange portion 75 extends annularly from the lower end of the cylindrical head portion 76 to the outside in the radial direction. An annular fitting groove 75 a is formed on the upper surface of the flange portion 75, and the fitting groove 75 a is fitted into a fitting projection 34 provided below the flange portion 32 of the mounting member 3 (FIG. 2). The outer diameter of the flange portion 75 is slightly the same as the outer diameter of the flange portion 51 of the first ventilation member 5 and the outer diameter of the second ventilation member 6. Opening of flange 75 The inner diameter of the port 78 is slightly the same as 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 (FIG. 2).

In order to fit the head portion 76 into the opening 33 of the mounting member 3, the head portion 76 is formed slightly longer than the thickness of the flange portion 32 of the mounting member 3 in the axial direction. The outer diameter of the head portion 76 is formed finer than the lower flange portion 75 and the upper protruding portion 77.

The protruding portion 77 is a ring-shaped convex curved surface, and its diameter gradually increases upward from the upper end of the head portion 76. The protruding portion 77 passes through the largest diameter portion 77a, which is a ring portion having the largest outer diameter, and reaches the first nipple body portion 72. In addition, the protruding portion 77 may be formed in a flange shape and extend annularly from the upper end of the head portion 76 to the outside in the radial direction.

The first pacifier body portion 72, the second pacifier body portion 73, and the nipple portion 74 as a whole have a slightly conical shape with the tip of the nipple portion 74 as a vertex. The centerline axis C1 of this slightly conical shape is inclined toward the upper jaw side with respect to the center axis C2 of the base 71. In other words, the artificial pacifier body 7 is a base 71, that is, a portion below the largest diameter portion 77a of the protruding portion 77, which has a rotationally symmetrical winding axis shape centered on the central axis C2, and is slightly inclined than the largest diameter portion 77a. And the shape arrange | positioned on the base part 71. Therefore, the breastfeeder 1 of the present invention has directivity for proper use. When feeding, the infant must be contained as shown on the right side as the upper jaw side and the left side as the lower jaw side. In this embodiment, the inclination angle is 7 °, but it may be other angles.

The first pacifier body portion 72 and the second pacifier body portion 73 are annular convex curved surfaces that gradually decrease in diameter upward. The first pacifier body portion 72 and the second pacifier body portion 73 are partitioned by a first narrow portion 79 formed by an annular concave curved surface. to make. In other words, the first pacifier body portion 72 and the second pacifier body portion 73 which are both convexly curved are continuously connected by the first narrow portion 79. Therefore, the first pacifier body portion 72 is formed by dividing the largest diameter portion 77 a of the protruding portion 77 and the first narrow portion 79.

The nipple portion 74 is slightly spherical, and a through hole for feeding is formed near the top near the upper jaw side, that is, a milk hole 74a (FIG. 14). Since the milk hole 74a is arranged near the top near the upper jaw side, it is possible to prevent the released beverage from directly contacting the deep throat when feeding infants. The pores 74a are preferably arranged at a position where the released beverage can reach the throat along the upper jaw. A concave curved surface 74b is formed at a portion slightly above the lower jaw side of the nipple portion 74. The concave curved surface 74b is formed at an angle inclined to the upper jaw side with respect to the center axis C1.

The second nipple body portion 73 and the nipple portion 74 are partitioned by a second narrow portion 80 formed by an annular concave curved surface. In other words, the convexly curved second nipple body portion 73 and the slightly spherical nipple portion 74 are continuously connected by the second narrow portion 80. Therefore, the second pacifier body portion 73 is formed by partitioning the first narrow portion 79 and the second narrow portion 80.

Next, while describing the breastfeeding movement of infants including the artificial pacifier body 7, further features of the artificial pacifier body 7 will be described. Infants and toddlers squeeze the beverage while drawing the beverage from the artificial pacifier body 7 by the tongue moving motion. At this time, while the infant pushes the artificial pacifier body 7 toward the upper jaw with the front end of the raised tongue and flattens it, the infant conveys the uplift deep into the throat. That is, the artificial pacifier body 7 pushes the surface of the lower jaw side of the artificial pacifier body from the lower side to the upper side by the raised portion of the tongue. By adjusting the path of the tongue through the artificial pacifier body 7, that is, the lower jaw shown in Figs. 14 and 15 The softness and rigidity of the area R of the side part can increase the freedom of the tongue movement. As a result, in terms of the function of the artificial pacifier body 7 itself, the peristaltic motion of the tongue of the infant can be induced, and the breastfeeding motion of the infant can be performed more smoothly. This will be described with reference to FIG. 17.

The breastfeeding exercise for infants and young children starts from the abutment portion 73a, which is the portion that presses the tip of the raised tongue against the chin side of the second pacifier body portion 73. Therefore, first, in order to make the part easy to be crushed, an artificial pacifier body 7 must be formed. This can be achieved by the existence of the cavity portion 81 formed on the inner surface of the protruding portion 77 and the inner surface of the first nipple body portion 72. That is, when the contact portion 73a of the second pacifier body portion 73 is pressed by the tip of the raised tongue, the upper portion of the first pacifier body portion 72 is elastically deformed into the cavity portion 81. Then, as the tip of the raised tongue moves upward, the upper portion of the first pacifier body 72 is restored, and this restoring force assists the tongue to move upward. At this time, in the inside of the artificial pacifier body 7, the beverage is gradually compressed toward the nipple 74.

The start point of the breastfeeding movement for infants and young children, that is, the next part of the second nipple body portion 73 should be formed to be easily crushed. It is the boundary area between the nipple portion 74 and the second narrow portion 80, that is, the concave curved surface 74b of the nipple portion 74. The lower part K. This can be achieved by forming the portion K of the course that the tongue passes before and after, that is, the upper portion J of the second narrow portion 80 and the center C of the concave curved surface 74b of the nipple portion 74 thinner. By forming the portion K at the lower end of the concave curved surface 74b easily, the beverage can be efficiently released from the milk hole 74a. In one embodiment, the thickness of the upper portion J of the second narrow portion 80 is 0.9 mm, the center C of the concave curved surface 74b of the nipple portion 74 is 0.8 mm, and the lower end portion K of the concave curved surface 74b of the nipple portion 74 is 1.3mm thickness.

Furthermore, the breastfeeding movement of infants and young children ends with the bulge of the tongue before the end of the nipple 74, and then returns to the starting point. However, when the nipple 74 is spherical or convex, the bulge The front end of the tongue sometimes slips off at the end, and it falls off the passing route, and the beverage cannot be smoothly released. However, since the nipple portion 74 of the artificial pacifier body 7 has the above-mentioned concave curved surface 74b, the tip of the raised tongue will not fall off from the route passing through the nipple portion 74, but can be moved to the end.

With the above-mentioned various characteristic structures on the route of the tongue of the infant through the artificial pacifier body 7, it is possible to induce the peristaltic movement of the tongue of the infant and to smoothly perform the breastfeeding exercise of the infant.

In addition, the upper jaw side surface of the first pacifier main body portion 72 and the second pacifier main body portion 73 is formed to have a smaller convex protrusion than the lower jaw side surface. Therefore, the jaw-side surface of the artificial pacifier body 7 has less unevenness as a whole. Therefore, the portion on the upper jaw side of the artificial pacifier body 7 is in close contact with the upper jaw of an infant and a baby can perform a stable breastfeeding exercise. In addition, since the portion on the upper jaw side of the artificial pacifier body 7 is in close contact with the baby's upper jaw, the oral cavity can be kept at a low pressure by suction, and breastfeeding can be performed efficiently. Furthermore, since the entire surface of the upper jaw side of the artificial pacifier body 7 is formed with less unevenness, the upper lip of the infant can be prevented from being rolled into the inside due to friction with the artificial pacifier body 7.

Furthermore, as described above, the artificial pacifier body 7 is slightly conical, and the centerline axis C1 is inclined to the upper jaw side than the central axis C2 of the base 71, so that the upper jaw side portion of the artificial pacifier body 7 closely fits the upper jaw of the infant. In this state, a large area and a large hollow portion 81 can be ensured on the lower jaw side of the artificial pacifier body 7. As a result, the degree of freedom of tongue movement can be improved.

Since the artificial pacifier body 7 is formed of a soft synthetic resin or the like, various colors can be performed. Conventional artificial pacifiers are made of transparent or white silicone. However, the artificial pacifier body 7 may be colored in a warm color such as pink or skin color, or other colors. By coloring the artificial pacifier body 7 as a whole to form a color other than transparent or mixed white, it is possible to prevent confusion with breastfeeding devices of other people in hospitals and the like, and improve recognition. Furthermore, by coloring in a warm color system, infants and young children can increase their appetite and make infants and children feel mild or kind. Furthermore, by partially coloring the artificial pacifier body 7 and applying a pattern or pattern, an artificial pacifier with high design can be formed. It is also possible to use marking or the like instead of coloring. For example, as shown in FIG. 14, in order to easily determine the direction in use, characters such as "UP" which means the upper side may be engraved.

FIG. 19 is a perspective view showing the fitting of the first ventilation member 5 and the second ventilation member 6. Before assembling the breastfeeder 1, the first ventilation member 5 and the second ventilation member 6 must be fitted together. That is, as described above, the first ventilation member 5 includes three check valves 53, 54, and 55 corresponding to the ventilation holes. As described above, since the flow rates obtained by the respective check valves 53, 54, and 55 are different under the same pressure difference, an appropriate check valve can be selected. The second ventilation member 6 is covered with the first ventilation member 5 from above, and the sleeve portion 65 of the second ventilation member 6 is inserted into the fitting hole in which the selected check valve is arranged to complete the fitting. That is, the first ventilation member 5 is fitted into the recessed portion 64 of the second ventilation member 6. 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, it is possible to obtain a single ventilation hole that communicates the upper and lower portions of the first ventilation member 5 and the second ventilation member 6 that are integrally formed, which is equivalent to the selected check. Vent of the valve. In other words, the first ventilation member 5 and the second ventilation member 6 constitute a flow rate adjustment mechanism. In addition, in order not to hinder the flow of gas through the selected check valve, the shape of the hollow sleeve portion 65 and the groove 66 in the second ventilation member 6 is designed, that is, the shape of the ventilation hole 67 and the like.

Furthermore, before the breastfeeder 1 is assembled, the artificial pacifier body 7 is attached to the attachment member 3. That is, the artificial pacifier body 7 is inserted through the opening 35 and the opening 33 from below the mounting member 3. Since the outer diameter of at least the largest diameter portion 77a of the protruding portion 77 of the artificial pacifier body 7 is larger than the internal diameter of the opening 33 of the mounting member 3, the artificial pacifier body 7 is inserted while being deformed elastically. Finally, the artificial pacifier body 7 is inserted until the flange portion 32 of the mounting member 3 is disposed on the head 76 of the artificial pacifier body 7. When the artificial pacifier body 7 is mounted on the mounting member 3 (FIG. 2), the fitting protrusion 34 of the flange portion 32 of the mounting member 3 is fitted into the fitting groove 75 a of the flange portion 75 of the artificial pacifier body 7. Therefore, even if the infant nipple strongly bites the artificial pacifier body 7, the artificial pacifier body 7 is not easily detached from the mounting member 3.

Here, in a state where the artificial pacifier 2 is assembled to the mounting member 3, the flange portion 32 of the mounting member 3 is separated from the protruding portion 77 of the artificial pacifier body 7. Furthermore, since the diameter of the protruding portion 77 is gradually increased upward from the upper end of the head portion 76, the interval between the two members becomes larger toward the outside in the radial direction. With such a structure, even if the infant contains the artificial pacifier body 7 deep, the lips are not caught between the flange portion 32 of the mounting member 3 and the protruding portion 77 of the artificial pacifier body 7.

The final assembly of the breastfeeder 1 will be described. As described above, firstly, the first ventilation member 5 and the second ventilation member that are fitted with a check valve 53 and fitted, for example, are placed on the open end of the breastfeeder body 4 containing the beverage. 6. Then, from The top cover is pre-installed with the mounting member 3 and the artificial pacifier body 7, and the assembly is completed by screwing the mounting member 3 to the breastfeeder body 4 (Fig. 2). At this time, the support wall 62 formed on the upper surface of the second ventilation member 6 abuts the lower end surface of the artificial pacifier body 7. Therefore, when the mounting member 3 is screwed onto the breastfeeder body 4, even if it is closed with excessive force, the upper surface of the second ventilation member 6 can be prevented from abutting the lower end surface of the artificial pacifier body 7 and the ventilation hole 67 can be prevented from being blocked.

When the infant sucks the artificial pacifier 2 and reduces the pressure in the breastfeeder 1, a pressure difference occurs inside and outside the breastfeeder 1. With this pressure difference, the check valve is opened, and external air passes through the gap between the female spiral portion 36 of the mounting member 3 and the male spiral portion 41 of the breastfeeder body 4 and the vent hole 67, and finally is introduced into the breastfeeder through the check valve 53 Inside. On the other hand, by having the check valve 53, it is possible to prevent the beverage from leaking out of the breastfeeder 1.

FIG. 20 is a diagram illustrating the flow rate measurement of the breastfeeder 1 of FIG. 1. The measurement method is to pour water at room temperature into the breastfeeder 1 and suck it with a vacuum pump P at a pressure of -13 kPa, and measure the flow rate of the sucked water. The water sucked from the breastfeeder 1 is contained in the container 100. 26.1 (ml / min), 23.3 (26.1 (ml / min) and 23.3 (ml) ml / min) and 18.0 (ml / min). In addition, when the inside of the breastfeeder 1 was not ventilated, that is, when the pressure in the breastfeeder 1 continued to decrease, it was a result of 14.1 (ml / min).

According to the above, the ventilation hole 67 of the second ventilation member 6 is appropriately selected to communicate with the ventilation holes 53, 54, 55 of the first ventilation member 5 in accordance with the suction force when the infant is feeding, thereby adjusting the feeding device. 1The flow of gas from outside to inside. For example, the situation of infants with strong suction when feeding In this case, the ventilation hole 55 of the first ventilation member 5 is selected so that the flow rate of the gas flowing from the outside of the breastfeeder 1 into the inside is reduced. As a result, the pressure in the breastfeeder 1 which is lowered by suction is not easy to rise, and the amount of beverages that can be breast-fed by an infant can be reduced in one feeding operation. On the other hand, in the case of infants with weak suction during feeding, the ventilation holes 53 of the first ventilation member 5 are selected so as to increase the flow rate of gas flowing from the outside of the breastfeeder 1 into the inside. As a result, the pressure in the breastfeeder 1 which is lowered due to suction rises immediately, so that the amount of beverages that can be breast-fed by an infant can be increased in one feeding operation. Therefore, it is possible to adjust the appropriate feeding time or beverage flow rate for infants and young children in a simple manner (for example, the time required to finish drinking the beverage in the breastfeeder is about 15-20 minutes). Furthermore, since the communication of the ventilation holes is performed by the fitting of the concave portion (fitting hole) and the convex portion (sleeve portion) of the first ventilation member 5 and the second ventilation member 6, the communication can be performed more reliably. Stomatal communication.

The communication of the vent holes may be performed without fitting the concave and convex portions of the first vent member and the second vent member, that is, a structure having no convex portions is formed, and the vent holes are aligned with each other. In addition, a plurality of hollow sleeve portions extending upward may be provided on the upper surface of the first ventilation member, a check valve as described above may be provided in the sleeve portion, and a penetration may be provided in the corresponding second ventilation member. Hole to fit. In addition, since the adjustment of the flow rate under the same pressure difference is almost synonymous with the adjustment of the opening area of the vent hole, it is not necessary to use a check valve with a different shape of the valve body as in the above embodiment, and only an opening is provided in the first venting member A plurality of through holes having different areas. Furthermore, when the first ventilation member has a plurality of through holes having different opening areas, a check valve may be provided only in the hollow sleeve portion of the second ventilation member. In the above embodiment, the flow rate adjusting mechanism may be adjusted. The number of vent holes is three, but it may be two or four or more.

The characteristics of the above-mentioned artificial pacifier body are not only applicable to the aforementioned breastfeeders, but may also be applied to conventional breastfeeders.

Claims (6)

An artificial pacifier having: an artificial pacifier body; a first ventilation member having a plurality of ventilation holes, the plurality of ventilation holes having mutually different opening areas under the same pressure difference between the inside and outside of a breastfeeder; and a second ventilation member, The artificial pacifier has a vent hole, and the artificial pacifier is installed on a breastfeeder body for storing a beverage, characterized in that the vent hole of the second vent member is selectively communicated with the plural vent holes of the first vent member, whereby It can adjust the flow of gas flowing from the outside of the breastfeeder into the inside through the connected vent hole. For example, the artificial pacifier of claim 1, wherein the plurality of ventilation holes of the first ventilation member or the ventilation holes of the second ventilation member are closed. For example, the artificial pacifier of claim 1, wherein the artificial pacifier body is mounted on the breastfeeder body through the first ventilation member and the second ventilation member, and the first ventilation member and the second ventilation member are formed in a ring shape and a flat plate. That is, the communication of the ventilation holes is performed by overlapping the first ventilation member and the second ventilation member. For example, the artificial pacifier of claim 2, wherein the artificial pacifier body is mounted on the breastfeeder body through the first ventilation member and the second ventilation member, and the first ventilation member and the second ventilation member are formed into a ring shape and a flat plate. That is, the communication of the ventilation holes is performed by overlapping the first ventilation member and the second ventilation member. The artificial pacifier according to any one of claim 1 to claim 4, 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 holes of the second ventilation member are formed as a concave portion. Or as another kind of convex part, the said ventilation hole is communicated by fitting the said recessed part and the said convex part of the said 1st ventilation member and the said 2nd ventilation member. A breastfeeder having the artificial pacifier and the breastfeeder body according to any one of claim 1 to claim 5.