JPH02144065A - Nipple for nursing bottle - Google Patents

Abstract

PURPOSE:To facilitate the distortion of a nipple part in an eccentric direction by increasing the rigidity of a body part by increasing the wall thickness of the body part on a side to be made eccentric by providing the nipple part protruding from the leading end of the body part so as to make the center line thereof eccentric from that of the body part and making the expansion quantity of the body part on the eccentric side smaller than that of the body part on the side to be made eccentric. CONSTITUTION:The center line N of a nipple part 2 is made eccentric by appropriate quantity (e) with respect to the center line C of the body part 1 and a flat surface 2a forming a flat shape is provided to the nipple part 2 on the side to be made eccentric opposite to the eccentric side thereof and, by this method, the nipple part 2 is formed into a shape easy to become familiar with a tongue. A suction hole 4 is provided to the leading end of the nipple part 2 at the eccentric position of the spherical surface part thereof and a spherical cavity is provided to the inner surface of the suction hole 4 to form a thin wall part 5 and the nipple part 2 is made largely elastically deformable by said thin wall part 5. The expansion quantity of the upper jaw surface 1a on the aforementioned eccentric side turned toward an upper jaw at the time of nursing is set so as to be smaller than that of the tongue surface 1b on the side to be made eccentric and, by this method, the length of the nipple part 2 on the eccentric side thereof is set so as to become shorter than that of the flat surface 2a on the side to be made eccentric.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a nipple for a nursing bottle that allows breastfeeding with a feeling similar to that of breastfeeding from breast milk.

[Prior Art] As a conventional nipple for a nursing bottle, there is one shown in FIG. 7, for example.

This thing has a hemispherical shell-like body 11 and a body 11 that has a hemispherical shell shape.
It has a continuous papilla 12 at its tip, and the center line of the papilla 12 coincides with the center line of the torso 11, and all longitudinal sections passing through the center line have an equal and rotationally symmetrical shape as a whole. I was doing it.

[Problems to be Solved by the Invention] However, in such conventional nursing bottle nipples,
Because the center line of the torso 11 and the center line of the nipple 12 were rotationally symmetrical, when the infant put it in his mouth, it could not take a natural position like a mother's nipple, and the mother The challenge was to provide the infant with a sensation different from that of breastfeeding from the breast.

Since suckling is the only method of nutritional intake for infants, the morphology of the infant's oral cavity has the following major characteristics compared to that of adults. That is, there is a depression (sucking socket) in the center of the infant's upper jaw A, and the infant can suck by pressing the nipple into the depression with the tongue B while sucking.

When sucking, the fat bed on the inside of the abdomen and the tongue B
The upper jaw A surrounds the nipple, and the tongue B gives the nipple movement to suckle.

However, in conventional nursing bottle nipples, as mentioned above, the entire nipple has a rotationally symmetrical shape, so when the nipple is held in the mouth, it is not possible to obtain a natural position similar to that of a mother's nipple. Ta.

The present invention was made in view of such conventional problems, and allows the tip of the nipple to be naturally pressed against the recess (sucking socket) in the upper jaw when the baby is put in the mouth, and the movement of the tongue can be adjusted to mimic the state of breastfeeding from breast milk. The aim is to solve the above problems by making it possible to approach the

[Means for Solving the Problems] In order to achieve the above object, the nipple for a nursing bottle of the present invention is provided such that the center line of the nipple that protrudes from the tip of the body is offset from the center line of the body. , the amount of bulge of the trunk on the eccentric side is made smaller than the amount of bulge on the eccentric side so that the length of the nipple on the eccentric side is longer than the length on the eccentric side, and the trunk on the eccentric side It is characterized by increasing the thickness of the nipple to increase its rigidity, making it easier to deflect the nipple toward the eccentric side.

[Function] When breastfeeding, the nipple is placed in its mouth with the eccentric side of the nipple, which has a center line eccentric from the center line of the torso, facing the upper jaw. As a result, the papilla is set by the difference in the length of the papilla between the eccentric side and the eccentric side based on the amount of bulge of the torso, and the rigidity based on the thickness of the torso. The flexibility of the part allows the infant to breastfeed in a natural position, similar to breastfeeding from the mother's nipple.

Furthermore, by forming the tongue side of the nipple into a flat structure, the baby can suckle in a manner similar to the way the tongue moves and the mouth opens when suckling from the mother's breast.

[Example] Next, an example of the present invention will be described with reference to the drawings.

1 to 6 are diagrams showing one embodiment of the present invention.

First, to explain the structure, l shown in FIGS. 1 to 3 is a hemispherical shell-shaped trunk, 2 is a hollow papilla provided continuously at the tip of the trunk 1, and 3 is a trunk l. It is a flange that is expanded outward on the opening side of the
The flange portion 3 is integrally formed of special artificial rubber or natural rubber, and constitutes a nipple for a nursing bottle as a whole.

The center line N of the nipple 2 is eccentric by an appropriate amount e with respect to the center line C of the trunk l, and a first... As shown in FIG. 4, a flat surface 2a is provided, which makes it easy to fit on the tongue. An eye hole 4 is provided at the center (eccentric position) of the spherical part at the tip of the papilla 2, and a spherical recess is provided on the inner surface of the eye hole 4 to form a thin part 5. 4 large elastic deformations are possible.

In addition, the body part 1 has a larger diameter than the body part of a general nursing bottle nipple, and has a bulge similar to that of a breast, and also has a maxillary surface 1a which is the eccentric side that is directed toward the maxillary side during feeding.
The amount of bulge is set to be smaller than the amount of bulge of the old blood 1b, which is the eccentric side on the opposite side. It is set shorter than the length of . Furthermore, the thickness of the old blood 1b in the FJ portion 1 is made thicker than that of the maxillary surface 1a to increase the rigidity of the old blood 1b, thereby making it easier for the papilla 2 to deflect toward the eccentric side.

The size of the entire nipple is determined to correspond to changes in the oral cavity (size, shape, etc. of the sucking socket, tongue, lips, etc.) that develops as the infant grows.

Further, an annular projecting edge 6 that continues in the circumferential direction is provided on the outer peripheral edge of the upper surface of the flange portion 3, and a recessed portion 7 is provided at one location in the circumferential direction inside the annular projecting edge 6. A valve body 8 is formed by providing four annular parts surrounding the part 7 on the lower surface.

A cut (for example, cross-shaped) is provided in the center of the bottom surface of the valve body 8 to vertically penetrate the thick part thereof, thereby forming an air valve 9.

Next, the effect will be explained.

Generally, the sucking mechanism when an infant breastfeeds from the breast is thought to be as shown in the following ■~■.

■ The lips turn outward and press tightly against the breast, and the tip of the tongue protrudes in front of the lower gums and wraps around the nipple.

■ The neck of the nipple is located between the upper gums and the tip of the tongue, but the nipple is pressed against the upper palate and the tip extends to the boundary between the hard and soft palates.

■ Sucking is performed by an active movement in which the front part of the tongue bulges and compresses the bottom of the nipple from the tip backwards.

In other words, the tongue wraps around the nipple, and a part of the tongue bulges out, moving the lower part of the nipple from the swollen part to the tip.

The operation of this embodiment will be explained based on the mechanism of infant sucking.

The nipple having the above configuration is attached to the mouth of a baby bottle with a tightening cap in the same way as a general nursing bottle nipple. When breastfeeding an infant, as shown in Figure 6,
The eccentric side where the center line N of the papilla 2 is farther away from the center line C of the body part 1 is included toward the upper jaw A side, and the upper jaw surface 1a of the body part 1 is brought into contact with the upper jaw A, and the old blood 1b is brought into contact with the tongue B. Have them hold it in their mouths.

In this case, the nipple according to this embodiment has a body part 1 with a large diameter, a nipple 2 at the tip thereof eccentrically toward the maxillary A side, and a length on the eccentric side of the nipple 2 than the length on the eccentric side. The length of the nipple 2 is so long that the tip of the nipple reaches the recess (sucking fossa) in the center of the upper jaw, so when the nipple is held in the mouth with the mouth wide open, the nipple 2 goes deep into the mouth and the tip of the tongue B. The part protrudes forward and comes into contact with the old blood 1b side, which has a large bulge in the body part l. Moreover, the thickness of the old blood 1b on the eccentric side of the trunk l is made thicker than the thickness of the maxillary surface 1a on the eccentric side to increase the rigidity and facilitate the deflection of the papilla 2 toward the eccentric side. When an infant simply holds this nipple in its mouth, the nipple 2 moves toward the upper jaw A side, and its tip reaches the sucking fossa.

Therefore, it is possible to obtain a natural positional sensation in which the tip of the tongue tightly wraps and surrounds the nipple, just like when holding a mother's nipple in the mouth. This makes it possible to realize the movements of the tongue and lips when an infant suckles from the mother, and to promote the development of the jaw in a natural state.

Further, by making the eccentric side of the nipple 2 into an oblique plane, it is easy to put it in the mouth and fit the tongue, and it is possible to facilitate active movement by the tongue and promote breastfeeding.

[Effects of the Invention] As explained above, according to the present invention, the center line of the nipple is eccentric from the center line of the torso, and the amount of bulge on the eccentric side of the torso is equal to the amount of bulge on the eccentric side. The length of the nipple on the eccentric side is made smaller, and the wall thickness on the eccentric side of the torso is increased to increase rigidity and allow the nipple to easily bend toward the eccentric side, allowing the mouth to open wider. By holding a real nipple in your mouth, the nipple enters the back of your mouth and bends toward the upper jaw so that its tip comes into contact with the sucking socket, and the tip of your tongue tightly wraps around the nipple to create a natural position. The effect is that it is possible to provide a nipple for a nursing bottle that provides a sensation (feeling of swelling). As a result, it is possible to induce movements similar to those of the mother's tongue and lips when breastfeeding from the breast, thereby promoting active movement of the infant's tongue and promoting natural jaw development. This effect can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing one embodiment of the present invention, and Fig. 2 is a plan view showing an embodiment of the present invention.
Figure 3 is a cross-sectional view taken along the line II--II in the figure, Figure 3 is a diagram showing Figure 2 superimposed on the m-■ line cross-sectional view in Figure 1 with broken lines, Figure 4 is a cross-sectional view taken along the IT-IV line in Figure 2. 5. FIG. 5 is an enlarged cross-sectional view of the main part of FIG. 2, FIG. 6 is an explanatory diagram showing how the present invention is used, and FIG. 7 is an explanatory diagram showing how the conventional nipple is used. l: Torso 1a: Maxillary surface 1b = tongue surface 2: Papilla 2a: Oblate surface 4: Suction A: Upper jaw B: Tongue

Claims (1)

[Claims] The center line of the nipple that protrudes from the tip of the trunk is provided eccentrically from the center line of the trunk, and the amount of bulge of the trunk on the eccentric side is smaller than the amount of bulge on the eccentric side to form the nipple. The length on the eccentric side of the nipple is made longer than the length on the eccentric side, and the thickness of the trunk on the eccentric side is increased to increase rigidity and facilitate the deflection of the nipple toward the eccentric side. A nipple for a nursing bottle.