NL8103996A - EXTRACTOR FOR A DEVICE FOR EXTRACTING MILK MILK. - Google Patents

Description

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Title: Suction hood for a device for sucking breast milk

The invention relates to a suction hood for a device for suctioning breast milk with a hood body, a connecting stub for a vacuum line and a connecting stub for a receiving vessel.

Such suction hoods are known and form an important part of breast milk suction devices. Such devices naturally include a suction pump, which normally produces intermittently under pressure. In addition to the purely hygienic requirements for the device, technical problems also arise with the known solutions, many of which are at least partly unsatisfactorily solved.

This means that it always happens that milk enters the vacuum line and even into the pump. This is counteracted by the provision of so-called safety volumes between the hood and the pump, which, however, is associated with very great technical difficulties. Moreover, new problems arise here, for instance with regard to the system or with regard to the actual operation, because varying conditions can occur in the vacuum.

The object of the invention is to provide an extractor hood, whereby the existing shortcomings are largely eliminated.

The new construction of the extractor hood is distinguished according to the invention in that a collecting chamber is arranged adjacent to the hood body, at the outlet of which a valve is present, which closes off the passage from the receiving chamber after collecting vacuum applied, but this incidentally during company.

As a result of the valve equipped with a valve, it is also possible, for example, to pump into the receiving vessel in the form of a plastic bag, because the underpressure no longer acts in the receiving vessel.

In addition, overflowing could be avoided, because the valve opens at the correct time and the pumped milk flows into the receiving vessel.

The new construction according to the invention solves the sealing problems and allows the use of small pumps which can considerably reduce the "volume of vacuum required for intermittent operation compared to known solutions (it requires 8 1 0 3 99 6 _ - 2 - volume of the receiving vessel due to the valve and for the safety volume due to its disappearance, no vacuum is produced).

A "particular" important advantage lies in the fact that a constant negative pressure (vacuum) can be applied, because variable volumes are no longer present in this system (previously the volume of the receiving vessel with increasing filling).

Finally, it should be noted that the new hood is extremely easy to install.

The collection chamber is preferably detachably attached to the rest of the hood body together with the TO-valve mounted therein, for instance by means of a snap or screw closure.

The valve is effectively made through a bore in the chamber bottom and ....

...... a closing body arranged underneath, the latter being for instance in the form of a ball of light material arranged in a kind of cage.

The invention is explained in more detail below with reference to an embodiment shown in the drawing.

The only figure of the drawing shows a hood according to the invention in vertical section.

The drawn extractor hood consists of the actual hood body 1, a connecting stub 2 communicating with its interior space for a vacuum suction line (not shown) and another connecting stub 3 for a receiving vessel k (drawn in dashed lines). The product is made of plastic and consists of one piece.

Within the stump extra there is now additionally a collection chamber 5 with valve 6 arranged at the bottom end 5 '. The valve 6 is formed by a bore 8 in the bottom of the chamber 5 and a valve body 9, for example as a ball of light material, the valve body 9 being housed in a cage 10.

The collecting chamber 5 is detachably attached to the rest of the hood body by means of a snap closure 7. The whole can therefore be cleaned very easily.

With hood body 1 resting against the body and with negative pressure built up, the valve body 9 is lifted in the striped position 35 9 'and thereby closes the bore 8 and thus also the receiving chamber 5-

As soon as the underpressure drops, the valve body 9 returns to the bottom position 9 and the milk collected in chamber 5 can flow down into the collecting vessel 4.

Of course, instead of a ball, the valve body 9 can also be replaced by another valve body, for example a body in the form of a semi-spherical hollow shell with a guide extending through the bore 8. Other valves which can be operated by underpressure are also conceivable.

8103996

Claims (2)

Suction hood for a device for sucking breast milk, with a hood body (1), a connecting piece (2) for a vacuum line and a connecting piece (3) for the front leg receiving vessel (1+), characterized in that the hood body (1) is provided with a receiving chamber (5), 5 at the outlet (5r) of which a valve (6) is present, which closes the passage from the receiving chamber to the receiving vessel and, however, releases it during operation. * Extractor hood according to claim 1, characterized in that the collection chamber (3) with the valve (6) present therein is detachably attached to the rest 10 of the hood body. * Extractor hood according to claim 2, characterized in that a snap closure (7) is present between the hood body (1) and the collecting chamber (5). k. Extractor hood according to claim 2, characterized in that between hood body. and catch chamber has a twist lock. T5 5 Extractor hood according to Claim 1-k, characterized in that the valve consists of a bore (8) in the chamber bottom and a closing body (1) arranged underneath. 6. Extractor hood according to claim 5, characterized in that the closing body (9) is arranged in a cage (10). Extractor hood according to claim 6, characterized in that the closing body consists of a ball (9). 8103996