JP2913203B2 - Electric breast pump for breast milk - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an electric breast pump for breast milk which milks breast milk by applying a negative pressure to the inside of a milking cup with an electric suction device, and in particular,
The present invention relates to a storage structure of a cleaning pipe for cleaning a ventilation path of the electric suction device.

[Prior art] Conventional electric breast pumps for breast milk include, for example,
There is one such as that described in Japanese Patent No. 41364.

This is composed of a suction unit, a sucking unit and a bottle, and a pressure adjusting screw and a pressure release button that can freely change the internal pressure by introducing outside air are installed in the electric suction unit,
It is characterized in that the suction part, the breast sucking part whose flapper is opened to the side, and the bottle communicate with each other in the vertical direction.

Thus, by turning on the switch with the wrapper of the sucking unit in contact with the breast and activating the electric suction unit to make the inside of the sucking unit a negative pressure, breast milk is milked and the torso and It flows into the bottle through the guide wall and is stored in the bottle.

[Problems to be Solved by the Invention] However, in such a conventional electric breast pump for breast milk, the suction port of the suction section is opened near the lower joint where the breast sucking section and the bottle are communicated. Since the milked milk remains in a liquid state or becomes a mist and easily enters the suction section from the intake port, the breast milk easily adheres to the walls of the air passages in the suction section, which is unsanitary. There was a problem that it was easy to become.

The present invention has been made in view of such a conventional problem, and a cleaning pipe for cleaning an air passage of an electric suction device with a cleaning liquid is detachably housed in the electric suction device. It aims to solve the problem.

[Means for Solving the Problems] In order to achieve the above object, an electric breast pump for breast milk according to the present invention is an electric suction device that sucks air in a milking cup and generates a negative pressure to milk breast milk. In an electric breast pump for breast milk, which is detachably provided on a cylindrical body to which the milking cup is attached, a cleaning pipe for cleaning by passing a cleaning liquid through a ventilation passage in the electric suction device, It is characterized by being detachably stored in the suction device.

[Operation] In the case of cleaning the inside of the ventilation passage of the electric suction device, after the electric suction device is separated, the cleaning pipe is taken out from its storage portion, one end is connected to the suction port, and the other end is water or the like. Insert into the washing solution. Thereafter, by operating the electric suction device, the cleaning liquid sucked from the cleaning pipe into the electric suction device flows in the ventilation path, dissolves the milk attached to the inner wall of the ventilation path, and is discharged to the outside. Thus, the ventilation path can be cleaned.

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

1 to 8 show one embodiment of the present invention.
1 is a diagram of an electric breast pump including an electric suction unit that generates a negative pressure by a suction pump driven by a motor.

First, the structure will be described. As shown in FIG. 1, reference numeral 1 denotes a milking cup. The milking cup 1 has a milking part 3 having a milking path 2 which is expanded in a trumpet shape, and a base of the milking part 3. And a cap-shaped connecting portion 4 provided continuously and integrally with the end, and the nipple portion 3 extends obliquely upward from the upper surface of the connecting portion 4. The connecting part 4 is provided with a partitioning piece 5 for partitioning the milking path 2 from the milking path 2 to form a chamber 6, and the chamber 6 is provided with a pressure release mechanism 7 for releasing the internal negative pressure to the outside air. ing.

The pressure release mechanism 7 includes a through hole 8 provided in an upper wall of the chamber 6.
And an opening lever 9 having a valve body 10 penetrated through the through hole 8. The valve body 10 and a lever body 11 fixed to the outer end thereof are provided.
And constitute the release lever 9. The valve body 10 is composed of a shaft body formed of an elastic body such as rubber which is easily elastically deformed,
A frustoconical head 10a is provided at its inner end, and an inward tapered portion 10b is provided at its outer end. The inner and outer surfaces of the through hole 8 are sealed by making the head portion 10a and the tapered portion 10b elastically contact the side surfaces of the through hole 8 from both sides at the same time.

Further, the lever body 11 is made of a plastic or the like harder than the valve body 10, the upper end thereof is joined to the outer end of the valve body 10, and the lower end extends diagonally downward crossing the axial direction of the valve body 10. Is formed. As a result, by pressing the lower end of the lever body 11, the valve body 10 can be elastically deformed, and the elastic deformation of the valve body 10 causes the head 10a.
Then, the respective contact between the peripheral edge of the through hole 8 and the tapered portion 10b and the peripheral edge of the through hole 8 are released, whereby the inside and the outside of the chamber 6 are communicated through the through hole 8.

The connecting portion 4 has an outer cylindrical portion 4a and an inner cylindrical portion 4b which are concentric with each other and protrude downward in a ring shape, and an apron ring 12 also having a ring shape is fixed to the outside of the outer cylindrical portion 4a. .
A thread is provided on the inner peripheral surface of the outer cylindrical portion 4a, and the milking cup 1 is formed into a cylindrical body by screwing the connection portion 4 into an upper mouth portion 14 provided on the outer peripheral surface with a thread which fits the thread. 13 can be detachably attached. The cylindrical body 13 has a cylindrical shape having a hole vertically penetrated with the upper opening 14 as one end,
At the other end of the hole, a lower opening 15 having a thread on the inner peripheral surface is formed. In this cylindrical body 13, a breast milk receiving cylinder 16 showing a specific example of a breast milk receiver for storing milked breast milk is suspended and held.

As shown in FIGS. 1 and 2 and the like, the breast milk receiving cylinder 16 is formed of a cylindrical cylindrical body having one end closed in the axial direction, and an outward flange portion 17 is provided at an end on the opening side thereof. A plurality of radial grooves 18 extending radially in the radial direction are formed on the lower surface of the flange portion 17. Corresponding to the flange portion 17, between the outer cylindrical portion 4a and the inner cylindrical portion 4b of the connecting portion 4, as shown in FIG. A convex portion 4c is provided, and a part of the annular convex portion 4c has a notch 19c.
Is formed. The flange portion 17 is placed on the upper mouth portion 13 and is fixed by being sandwiched between its end face and the annular convex portion 19.

The inside of the milking cup 1 and the inside of the cylindrical body 13 are communicated with the radial groove 18, the notch 19, and the gap set between the inner surface of the outer cylindrical portion 4a and the outer surface of the flange portion 17. Communication passage for
Forming 20.

In addition, as a material of the breast milk receiving cylinder 16, it is needless to say that it must be harmless to the human body and have excellent chemical stability, but the milked milk may be frozen and stored if necessary. Preferably, it has cold resistance (for example, about 20 ° C. below zero). As a specific material, for example, a polyethylene resin can be given. 1 and 3, reference numeral 21 denotes a connecting portion 4 and an upper opening portion 14.
And a seal member for maintaining the airtightness in the cylindrical body 13 by sealing the space between the two.

A motor-operated suction device 22 for applying a negative pressure to the inside of the cylinder 13 is detachably attached to the lower opening 15 of the cylinder 13.
The electric suction device 22 is, as shown in FIGS.
The casing 23 includes a casing 23 detachably attached to the casing 5 and an electric negative pressure source 24 housed in the casing 23.

Upper case that can be freely combined with casing 23
25 and a lower case 26, and a connection port 27 having an outer peripheral surface provided with a screw thread that fits into the screw thread of the lower port 15 is formed on the upper surface of the upper case 25. Inside the connection port 27,
As shown in FIGS. 4 and 8 and the like, an air intake port 28 for ventilation and a pair of arcuate projections 29 for stopping pipes facing each other are provided.
A vinyl pipe 30, which is a specific example of a cleaning pipe for cleaning the air passage inside the electric suction unit 22, is detachably accommodated in the arc projection 29. That vinyl pipe 30
Can be detachably attached to the intake port 28 at one end. Reference numeral 31 denotes a seal member for sealing between the lower opening 15 and the connection opening 27 to maintain airtightness in the cylindrical body 13.

Furthermore, inside the upper case 25, a dry battery 32 as a power supply is provided.
The storage section 33 for storing the
A battery cover 34 is formed on the lower case 26 so as to be detachable. On the side of the casing 23, an operation section of a slide switch 35 for turning on and off the driving of the electric negative pressure source 24 and the magnitude of the negative pressure of the electric negative pressure source 24 are adjusted. And the operating part of the pressure adjusting mechanism 37 are protruded.

The electric negative pressure source 24 includes a motor 38 driven by electric power from a dry cell 32, a diaphragm suction pump 39 driven by the motor 38, and a holder for fixing the suction pump 39 and the like to the lower surface of the upper case 25. And a pressure adjusting mechanism 37 and a switch 35 provided at one end of the holder 40.

The motor 38 is inserted into a storage portion provided in the holder 40, and has a rotary shaft, a crank member 4 having an eccentric shaft 41a.
1 is press-fitted and fixed. As shown in FIGS. 5 to 7, the suction pump 39 is provided integrally with a diaphragm 43 provided with a hollow pump chamber 42 by bulging a central portion in a circular shape and a flange portion of the diaphragm 43. Intake valve 44 and exhaust valve
45 and a boss protruding from the bulging side of the diaphragm 43
46 and has. A sleeve 47 is press-fitted into the boss portion 46, and an eccentric shaft 41a is rotatably inserted into the sleeve 47.

The suction pump 39 is held on the lower surface of the upper case 25 by a holder 40 that exposes the central diaphragm 43 and covers other portions. For this reason, the holder 40 has a recess for accommodating the flange portion of the diaphragm 43 and the intake valve 44 and the exhaust valve 45. Further, the holder 40 is provided with an intake side passage 49 communicating with the concave part on the intake valve side and an exhaust side path 50 communicating with the concave part on the exhaust valve side.
The exhaust passage 50, the pump chamber 42 and the like form an air passage 48 communicating the inside and outside of the electric negative pressure source 24.

The ventilation bypass 49, on the other hand, passes through the upper case 25 and
From 28, it communicates with the inside of the cylindrical body 13 and, on the other hand, communicates with the pressure adjusting mechanism 37, and the exhaust side passage 50 penetrates through the lower case 26 and communicates with the outside air. Further, in order to ensure the function of the suction pump 39, a passage 51 communicating the pump chamber 42 with the concave portion on the intake side and a passage communicating the pump chamber 42 with the concave portion on the exhaust side are provided on the lower surface of the upper case 25. 52 are provided. In order to prevent the inner surface of the diaphragm 43 from coming into contact during operation, a concave portion is provided at the center of the lower surface of the upper case 25.
53 are provided.

 Next, the operation of this embodiment will be described.

The operation of the suction pump 39 is performed by turning on and off the slide switch 35. That is, when the switch 35 is turned on and the motor 38 is driven to rotate, the rotation of the crank member 41 fixed to the rotating shaft causes the boss portion 46 to move through the circular motion of the sleeve 47 in which the eccentric shaft 41a is inserted. The diaphragm 43 reciprocates only for a distance twice the amount of eccentricity of the eccentric shaft 41a.

In this case, when the diaphragm 43 moves in the direction approaching the upper case 25 and changes so that the volume in the pump chamber 42 decreases, the air in the pump chamber 42 acts on the intake valve 44 from the passage 51 on the one hand. On the other hand, it acts on the exhaust valve 45 from the passage 52. When the suction pump 39 is in the free state, the intake valve 44 is set to close the intake side passage 49 and the exhaust valve 45 is set to close the exhaust side passage 50, so that the positive pressure in the pump chamber 42 is The intake valve 44 is pressed against the ventilation bypass 49 while the exhaust valve 45
Act so as to push them apart from the exhaust side passage 50. As a result, the air in the pump chamber 42 is discharged from the exhaust side passage 50 to the outside air via the passage 52 and the exhaust valve 45.

On the other hand, when the diaphragm 43 moves in a direction away from the upper case 25 and changes so as to increase the volume in the pump chamber 42, the negative pressure in the pump chamber 42, on the other hand, attracts the exhaust valve 45 to the passage 52, On the other hand, they act to separate the intake valves 44 from the intake side passages 49, respectively. As a result, the exhaust valve 45
As a result, the passage 52 is strongly closed, and the intake side passage 49 is opened by the intake valve 44.
Is introduced into the pump chamber 42 through the intake valve 44.

By repeating the operation of the diaphragm type suction pump 39, the milk inside the cylinder 13 and the milking cup 1 and the breast milk receiving cylinder 19 communicated with the inside of the cylinder 13 via the communication passage 20.
The inside air is sucked by the electric suction device 22 and released to the outside air. As a result, the inside of the milking cup 1 and the inside of the cylindrical body 13 are in a negative pressure state, whereby the breast is sucked and the breast milk flows out. The breast milk flows by its own weight through the milking path 2 of the milk contact part 3 and flows into the milk receiving cylinder 16 via the connection part 4,
It is stored there.

At the time of milking, if the negative pressure becomes too large and sudden pain is felt in the breast, or if milking is completed, the open air is introduced by pressing the release lever 9 of the pressure release mechanism 7,
The negative pressure inside the milking cup 1 is reduced. This operation is performed by pushing down the lever body 11 to elastically deform the valve body 10. As a result, the contact portion between the head 10a and the peripheral edge of the through hole 8 and the contact portion between the tapered portion 10b and the peripheral edge of the through hole 8 are respectively released, and the chamber 6 is communicated with the outside air via the through hole 8. . Thereby, the suction force based on the negative pressure in the milking cup 1 disappears, so that the milk contact part 3 can be quickly separated from the breast.

In addition, by rotating the knob of the pressure adjusting mechanism 37, the magnitude of the negative pressure in the milking cup 1 and the cylinder 13 can be easily adjusted.

The breast milk thus milked may be replaced with a normal milking nipple for breastfeeding, or the breast milk may be breast-feeded to the baby, or the breast milk receiving cylinder 16 may be taken out of the cylindrical body 13 and a lid may be attached to the flange portion 17. Then, it is put in a refrigerator or the like with the opening closed and sealed, and frozen and stored. Then, when necessary, remove it from the refrigerator, thaw it, and warm it appropriately to feed the baby.

In this case, the breast milk receiving cylinder 16 can be set on the cylindrical body 13 without touching the inside of the breast milk receiving cylinder 16, and the breast milk receiving cylinder 16 can be taken out of the cylindrical body 13 without touching the inside. It is possible to prevent the contaminated soil and germs from being mixed into the milk, so that the milk can be stored in a hygienic manner for a long period of time.

The electric suction device 22 is preferably cleaned periodically or as necessary for the following reasons. Normal,
In the electric breast pump according to the present embodiment, an electric suction unit 22 is provided at a portion farthest from the milking cup 1 to suck air inside, and a connection that acts like a throttle in the middle of the suction path. Since the passage 20 is provided and the milked milk can be prevented from flowing directly into the ventilation path 48, the milk is attached to the ventilation path 48, the pump chamber 42, etc. You don't have to worry about that.

However, when breast milk evaporates and enters the air, or when breast milk flows directly into the ventilation path 48 due to milking without setting the milk receiving cylinder 16 in the cylinder 13, for example, the breast milk is ventilated. The electric suction device 22 needs to be cleaned because it easily adheres to a wall such as the road 48 and becomes unsanitary.

The cleaning of the electric suction device 22 can be performed as follows. First, the electric suction device 22 is separated from the cylindrical body 13, and the vinyl pipe 30 engaged with and held by the arc projection 29 on the upper surface of the casing 23 is removed. As shown by the two-dot chain line in FIG. One end of the upper case 25
To the air vent 28 of Then, the other end of the vinyl pipe 30 is inserted into water, which is a specific example of the cleaning liquid contained in the container 60.

Thereafter, the switch 35 is turned on to operate the electric negative pressure source 24, and the same suction operation as during milking is performed. As a result, the water in the container 60 passes through the vinyl pipe 30 and the ventilation path 48.
In the same manner as the flow of air shown in FIG. 6, the air is discharged from the intake side passage 49 through the pump chamber 42 to the outside through the exhaust side passage 50. At this time, since the breast milk adhering to the walls and the like in the ventilation path 48 is washed away by the water and discharged to the outside, it is necessary to always maintain the motorized negative pressure source 24 in a sanitary manner by performing such washing work. Can be.

FIG. 9 shows another embodiment of the breast milk receptor, which is formed in a bag shape.

This breast milk receiving bag 56 is composed of a rectangular bag 57 having one end closed in the longitudinal direction and a wide-mouth member 58 whose entire periphery is tightly fixed to the opening at the other end, and a lid is used if necessary. be able to. As a means for tightly fixing the bag body 57 and the wide-mouth member 58, various well-known means such as, for example, forming the two members 57, 58 together with a thermoplastic resin and thermally bonding them together, or bonding them with an adhesive, etc. Can be adopted. Bag
As specific materials of the wide-opening member 57 and the lid, for example, the bag 57 is formed of a tube-shaped film in which nylon and polyethylene are laminated, and the wide-opening member 58 and the lid are formed of a polyethylene resin. Can be.

By providing a radial groove 59 also on the upper surface of the flange portion 17 as in this embodiment, the radial groove 59 is
Can be part of In this case, the middle cylinder portion 4c and the notch 19 provided in the connection portion 4 can be eliminated.

[Effects of the Invention] As described above, the present invention is configured as described above, and has the following effects.

By using a vinyl pipe stored on the upper surface of the electric suction device and operating the electric negative pressure source to pass the cleaning liquid through the air passage, the air passage can be easily and cleanly cleaned. The vessel can be kept hygienic. Moreover, since the vinyl pipe is always stored inside the cylinder, there is no danger of losing it.
It is very convenient because it can be easily taken out and used for washing.

[Brief description of the drawings]

1 to 8 show an embodiment of the present invention. FIG. 1 is a longitudinal sectional view of a left half section, and FIG. 2 is a perspective view from below showing an embodiment of a breast milk receiver. FIG. 3 is an enlarged sectional view of a portion A shown in FIG. 1, FIG. 4 is a longitudinal sectional view of the electric suction device, FIG. 5 is a transverse sectional view thereof, and FIG. FIG. 7 is a perspective view showing a diaphragm type suction pump, FIG. 8 is a plan view of an electric suction device, FIG.
The figure is a sectional front view of a main part showing another embodiment of the breast milk receiver. 1: milking cup, 4: connection part 7: pressure release mechanism, 9: release lever 10: valve body, 13: cylindrical body 16: breast receiving cylinder (breast milk receiver) 20: communication passage, 22: electric suction device 23 : Casing, 24: Electric negative pressure source 28: Pipe projection, 29: Arc projection 30: Vinyl pipe (washing pipe) 37: Pressure adjustment mechanism, 39: Suction pump 43: Diaphragm, 48: Ventilation path 56: Breast milk bag (milk receptor)

Claims (1)

(57) [Claims] An electric suction device for sucking air in a milking cup to generate a negative pressure for milking a breast milk, wherein the motorized suction device is detachably provided on a cylinder to which the milking cup is attached. An electric milking machine for breast milk, characterized in that a washing pipe for allowing a washing liquid to pass through a ventilation passage in the electric sucking device for washing is detachably accommodated in the electric sucking device.