JPH0349515B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a nipple for a baby bottle.

[Conventional technology]

Conventional baby bottle nipples are made of highly flexible materials (natural rubber, plastic, etc.) and are shaped to approximate the mother's breast, with a sucking hole formed at the tip of the nipple, and are widely used. (For example, see Japanese Patent Publication No. 51-38265, Publication Utility Model Publication No. 57-27462, etc.).

[Problem to be solved by the invention]

A conventional baby bottle nipple in which a sucking hole is formed at the tip of the nipple allows an infant to suck milk from the bottle by simply sucking the tip of the nipple during breastfeeding.

On the other hand, in order for an infant to suckle breast milk directly from the mother's body, the infant must hold the mother's nipple in its mouth deeply up to the areola, and while chewing with the upper and lower jaw, use the tip of the tongue to move from the areola to the nipple. I'm sucking while applying pressure to it and jerking it off.

That is, when breastfeeding directly from the mother's body, it is not possible to suck enough milk (breast milk) just by sucking the tip of the mother's nipple (nipple head).

Breastfeeding has recently been reconsidered, but for several days immediately after birth, when breast milk does not come in, formula milk is given in a bottle, and even when breast milk is not enough, some people rely on formula milk. There are times when you have no choice but to do so.
In such cases, bottle-feeding requires a complex combination of chewing motions of the upper and lower jaws and squeezing motions of the tip of the tongue, compared to direct breastfeeding from the mother.
It's not that necessary. It has been pointed out that as a result, infants tend to make less effort to suck, which may hinder a smooth transition to breastfeeding.
It has also been reported that by forcing infants to practice the complex connected movements of the above-mentioned chewing and squeezing movements, it naturally contributes to the development of the cerebrum.

The present invention was proposed in view of the above points, and
The purpose is to provide a nipple for a baby bottle that allows the sucking effort to be habituated more closely to the state of breastfeeding directly from the mother's body.

[Means to solve the problem]

In order to achieve the above object, one aspect of the present invention is to provide an egg-shaped nipple tip having an opening at the tip, an inverted funnel-shaped intermediate portion that bulges out from the base of the tip, and a middle portion of the intermediate portion. A nipple having a bottle spout fitting part for a baby bottle formed in a series at the base,
An inner wall is provided that hangs down from the tip opening of the nipple tip toward the middle part of the reverse funnel shape to near the boundary between the nipple tip and the middle part of the reverse funnel shape. A diaphragm that deforms and returns to its original shape when pressure is removed is provided, and a sucking hole is formed in a portion of the diaphragm that opens when pressure is applied from the outside and closes when the pressure is removed.

Another aspect of the present invention is an egg-shaped nipple tip having an opening at the tip, an inverted funnel-shaped intermediate portion that bulges out in a series from the base of the tip, and In a nipple having a formed bottle spout fitting part for a baby bottle, an inner wall is provided that extends from the inner surface of the bottle spout fitting part to near the boundary between the nipple tip and the inverted funnel-shaped middle part, and an extended end of this inner wall is provided. A diaphragm that deforms when pressure is applied from the outside and restores its shape when the pressure is removed is provided, and a part of this diaphragm has a sucking hole that opens when pressure is applied from the outside and closes when the pressure is removed. be.

[Effect]

In order for infants to suckle, get them into the habit of repeatedly compressing and releasing the diaphragm with their upper and lower jaws, and then using the tip of their tongue to push from the base of the nipple to the tip while sucking in a complex linked motion. be able to.

The septum is located near the boundary between the tip of the nipple and the middle part of the inverted funnel shape, so in order to position the upper and lower jaws in this part, the infant must hold the baby's mouth deeply into the middle part of the inverted funnel shape. As a result, when transitioning to direct breast-feeding from the mother, the baby can naturally engage in the linked motion of sucking and squeezing the nipple with the tip of the tongue while making a masticatory motion with the upper and lower jaws while holding the baby's mouth deeply up to the areola. This will help you achieve a smooth transition to breastfeeding. It is also presumed that it may contribute to the development of the infant's cerebrum.

〔Example〕

FIG. 1 is a longitudinal sectional side view of a nipple for a baby bottle showing one embodiment of the present invention, and the baby bottle 1 is roughly composed of a bottle body 2, a nipple 3, and a tightening ring 4. .

The bottle body 2 is made of transparent plastic and has a roughly cylindrical shape. The bottle body 2 is completely closed except for its upper opening 5;
It has a circular shape with a slightly smaller diameter.
A male thread 6 is provided on the outer periphery of the opening 5 . A scale (not shown) is provided on the side of the bottle body 2 to measure the amount of milk sucked by the infant.

The nipple 3 is made of transparent, flexible and elastic material (natural rubber, plastic, etc.) that is harmless to infants and can be sterilized by boiling. The nipple 3 is sized to fit the infant's mouth, and its shape roughly consists of an egg-shaped nipple tip 7, an inverted funnel-shaped middle part 8, and a bottle mouth fitting part 9, and is integrally molded. has been done.

The nipple tip 7 is formed with a substantially uniform thickness, and has a small diameter opening 10 at the center tip. Although the small diameter opening 10 is circular in the illustrated example, it may have another shape.

An inner wall 11 is provided at the back of the nipple tip 7 and integrally hangs down from the small diameter opening 10 toward the back, and a diaphragm 12 is integrally formed on the hanging end of the inner wall 11.

The inner wall 11 is formed so that the part of the diaphragm 12 is not turned over and exposed from the small diameter opening 10 due to the infant's sucking force. The diaphragm 12 is formed to partition the inside of the nipple 3, and has one or more sucking holes 13 formed in a part thereof, for example, in the center or the periphery. However, in the drawing, there is 1 in the center of the diaphragm 12.
This figure shows a case where two sucking holes 13 are formed.

The formation position of the diaphragm 12 is preferably near the position corresponding to the areola in the mother's breast, and in terms of the position inside the nipple 3, it is preferably near the boundary between the nipple tip 7 and the inverted funnel-shaped middle part 8. It may be centered and biased towards the nipple tip 7 side or in the opposite direction.

As shown in FIG. 1, the diaphragm 12 may be a flat membrane parallel to a plane perpendicular to the central axis of the nipple 3, or may have a spherical surface convex toward the distal end or a concave spherical surface.

The thickness of the diaphragm 12 may be changed as long as it can be deformed by the normal chewing force of the infant's upper and lower jaws.

The sucking hole 13 formed in the diaphragm 12 is formed by a cut, and this cut is formed by either an I-shaped single cut, an X-shaped cross cut, or a Y-shaped triple cut.

In the case where the sucking hole 13 is cut-shaped, the sucking hole 1
The diaphragm 12 at the formation position 3 is preferably formed thinner than other parts. For example, as shown in FIG. 2, a spherical recess 13' is provided, and a cut-shaped sucking hole 13 is formed in this part. Then, the point of change in wall thickness between the central part and the surrounding part becomes the fulcrum for the opening and closing operation of the cut-shaped hole edge, allowing smooth opening and closing operation, and also providing the function of a check valve. I can do it.

The inverted funnel-shaped intermediate portion 8 is formed continuously from the base of the nipple tip portion 7 and continues to the bottle mouth fitting portion 9 .

The bottle mouth fitting part 9 has a part that fits the bottle body opening 5,
A flange 14 is provided which acts to seal the baby bottle 1 under the pressure of the tightening ring 4.
Tapered portions 15 are provided above and below the outermost edge of the flange 14 to help bring the nipple 3 and bottle body 2 into more complete contact. Further, a protrusion 16 for fitting the tightening ring 4 and the nipple 3 is provided in a ring shape in the boundary area between the inverted funnel-shaped intermediate portion 8 and the bottle mouth fitting portion 9. The flange 14 is provided with one air valve 17 inside the circumferential taper 15 in direct contact with the bottle body opening 5. air valve 17
It is also possible to provide a plurality of them.

The air valve 17 has a two-tiered small hole portion 18 in which the diameter on the outside side is larger than the diameter on the inside side, and a cup-shaped protrusion inside the small hole portion 18, and a single cut in the axial direction of the air valve 17. Alternatively, it has a check valve structure consisting of a thin film portion 19 cross-cut in an X shape.

In order to protect the air valve thin film portion 19, a ring-shaped rib 20 is provided at the bottom of the flange 14, on the inner side of the lower surface of the peripheral tapered portion 15 that contacts the bottle main body opening 5, and is slightly higher than the height of the protrusion of the air valve thin film portion 19. It is being

The tightening ring 4 is made of plastic with some elasticity, and has a bottle spout fitting part in the center of the upper lid so that the nipple 3 can be detachably fitted into the bottle body opening 5 at the bottle spout fitting part 9. A circular notch of a size compatible with the bottle body opening 5 is provided.
A female thread is provided on the side inner surface of the clamping ring 4 to be threadedly connected to the male thread 6 of the clamping ring 4 .

The structure of the baby bottle according to one embodiment of the present invention has been described above, and the usage thereof will be explained next.

The tightening ring 4 is operated to loosen the screw, and the tightening ring 4 and nipple 3 are taken out from the bottle body 2.
Pour an appropriate amount of milk into the bottle body 2 through the bottle body opening 5. Tighten the bottle mouth fitting part 9 of the nipple with the ring 4
Set to . The female thread of the tightening ring 4 is screwed onto the male thread 6 of the bottle main body opening 5, and the bottle spout fitting part 9 of the nipple 3 is brought into close contact with the bottle main body opening 5, and the setting is completed. If the nipple 3 of the already set baby bottle 1 is held in the mouth and the tip is sucked, the sucking hole 13 will not open and the milk in the bottle body 2 cannot be sucked. In other words, the sucking hole 13 will not open unless the diaphragm 12 at the hanging end of the inner wall 11 hanging toward the back of the nipple tip 7 is compressed and deformed. As a result, the infant holds the nipple 3 deeply in its mouth, makes masticatory movements with its upper and lower jaws, and uses the tip of its tongue to squeeze the tip of the nipple 7 from the back to the tip side while exerting sucking force, thereby sucking the milk. They will learn that they can inhale. Such a sucking motion is more similar to the sucking motion when breastfeeding directly from the mother's body. During the sucking operation, the opening degree and the amount of milk flowing out of the sucking hole 13 are naturally adjusted according to the sucking force of the infant and the compressive force of the inner wall 11 and the diaphragm 12. 17 is opened and closed, air is supplied into the bottle body 2, and the infant can be continuously and smoothly fed. Since the air valve 17 has a check valve effect, when the infant stops sucking, it closes completely and prevents milk from flowing out.

In addition, the sucking hole 13 formed in a part of the diaphragm 12 is
In addition to cuts, single or multiple small holes may be used.

Next, FIG. 3 shows another embodiment of the present invention, in which the inner wall 11 is formed to extend from the inner surface on the side of the bottle mouth fitting part 9, and a diaphragm 12 is formed at the extended end.
A sucking hole 13 is formed in a part of the diaphragm 12. The other configurations are the same as those in FIG. Further, the usage is also the same as that in FIG. 1, so a description thereof will be omitted.

〔Effect of the invention〕

According to the present invention, when breastfeeding with a baby bottle, the mother holds the nipple deeply in her mouth, makes masticatory movements with her upper and lower jaws, and applies sucking force while squeezing the tip of the nipple from the back to the tip side with the tip of her tongue. It is estimated that this is more similar to direct breastfeeding, allowing for a smooth transition to breastfeeding for newborns, and contributing to cerebral development.

In addition, the structure is simple because the diaphragm is simply provided through the inner wall that hangs down to the back of the nipple tip, or the diaphragm is provided through the inner wall that extends from the inner surface on the side of the bottle spout fitting. Not only is it easy to manufacture, it is also easy to clean, and residual milk residue and clogging can be easily removed by cleaning, and it does not interfere with boiling sterilization.

[Brief explanation of drawings]

FIG. 1 is a vertical sectional side view of a nipple for a baby bottle showing one embodiment of the present invention, FIG. 2 is an enlarged sectional view showing a modification of the sucking hole portion formed in the diaphragm, and FIG. It is a vertical side view of the teat for a baby bottle showing an example. 1...Baby bottle, 2...Bottle body, 3...Nipple, 4...Tightening ring, 5...Opening, 6...Male thread, 7...Nipple tip, 8...Inverted funnel-shaped middle part, 9...Bottle mouth fitting part, 1
0... Small diameter opening, 11... Inner wall, 12... Diaphragm, 13...
Breastfeeding hole, 17...air valve.

Claims (1)

[Scope of Claims] 1. An egg-shaped nipple tip having an opening at the tip, an inverted funnel-shaped intermediate portion formed in series from the base of this tip, and a continuum formed in the base of this intermediate portion. In a nipple having a bottle spout fitting part for a baby bottle, the teat is made to hang down from the tip opening of the nipple tip toward the inverted funnel-shaped middle part to the vicinity of the boundary between the nipple tip and the inverted funnel-shaped middle part. A diaphragm is provided at the drooping end of this inner wall, which deforms due to external pressure and restores its shape when the pressure is released.A part of this diaphragm opens when external pressure is applied, and the pressure is released. A nipple for a baby bottle characterized by forming a sucking hole that closes when the nipple is closed. 2. An egg-shaped nipple tip with an opening at the tip, an inverted funnel-shaped intermediate portion formed in a series from the base of this tip, and a bottle for a baby bottle formed in a series at the base of this intermediate portion. In a nipple having a mouth fitting part, an inner wall is provided that extends from the inner surface of the bottle mouth fitting part to the vicinity of the boundary between the nipple tip and the inverted funnel-shaped middle part, and the extended end of this inner wall is pressed by external pressure. deformed,
A nipple for a baby bottle, characterized in that a diaphragm that restores its original state when pressure is released is provided, and a sucking hole is formed in a part of the diaphragm that opens when pressure is applied from the outside and closes when the pressure is released.