DE1575063B1 - Dosing device for a squeeze bottle - Google Patents

Description

ORIGINAL INSPECTED

Fluid is decreased. With an arrangement of the insert at the lower end of a dip tube, about 1 to 2 mm above the bottom of the bottle, there is the advantage that a short standing is enough to get a sufficient To ensure impregnation of the insert by itself. When pressing on the deformable walls the squeeze bottle is thus immediately given off a spray, without having to tilt the bottle beforehand or by the beginning of the squeezing movement, the insert would have to be soaked with the liquid. the The size and shape of the insert depend on the requirements of the individual case. When submitting Medicines, for example for inhalation therapy, generally become volumes of liquid in the order of magnitude of 0.02 up to about 1.0 ecm is required.

In the following description, the invention is illustrated with reference to exemplary embodiments explained in more detail on the drawing. It shows

F i g. 1 shows a section through an embodiment according to the invention of a metering device in a Squeeze bottle,

F i g. 2 shows a section through the embodiment according to Fig. 1, turned upside down,

F i g. 3 shows a section through another embodiment according to the invention,

F i g. 4 is an enlarged view from below of part of the embodiment according to FIG. 3;

F i g. 5 shows a section through a further modified embodiment,

F i g. 6 is an enlarged view from below of part of the embodiment according to FIG. 5.

According to FIG. 1 is a bottle 1 with resiliently deformable walls 2 made of polyethylene to one Third filled with a 3 liquid. The bottle neck 4 is cylindrical and contains a hollow, cylindrical one Stopper 5, which is fastened in it replaceably, for example with a simple sliding seat. The stopper 5 has a centrally arranged spray nozzle 6 and contains a sponge-like insert as an insert Material 7. A cap 8 is screwed onto the bottle neck 4.

The sponge-like material 7 is held in the plug 5 by means of a plate 9 which has two holes 9 a. The plate 9 is part of an insert in the plug 5. Furthermore, a semi-rigid, hollow immersion tube 10 made of polyethylene is attached to the perforated plate 9 by means of lugs 9 b . The tube 10 extends so that its other end is about 1 mm from the bottom of the bottle 1. In use, the bottle 1 is held substantially upright and compressed fairly quickly. The liquid 3 enclosed in the cell space of the sponge-like material 7 is ejected through the nozzle 6. At the same time, air from the bottle 1 is forced through the nozzle 6, mixes with the liquid 3 that is ejected and carries it out of the nozzle 6 as a fine mist ejection. When the device is operated as in FIG. 2 is held upside down, the sponge-like material 7 is immersed in the liquid 3, and the dip tube 10 acts as an air passage, so that when pressure is applied to the wall 2, the liquid 3 is sprayed in or on the sponge-like material 7 from the nozzle 6 in atomized form . Even if the device is as shown in FIG. 1 is held upright, as described, the applied pressure causes the liquid 3 to be forced up the tube 10 and the air to be forced through the perforated plate 9 so that a mist is expelled from the nozzle 6.

In the embodiment according to FIGS. 3 and 4 is an elastic and flexible, hollow dip tube 11 Made of polyethylene by means of noses or protrusions 12 and overlapping parts 13 with a sliding fit on the stopper 5 appropriate. The structure provides an air gap 14 around the pipe 11. The sponge-like material is about 1 mm above the bottom of the bottle 1 at the end of the tube 11 remote from the stopper 5. The sponge-like material 7 is held in this place by the chamber 15. A perforated plate with a central hole through which the tube 11 can pass in the plug 5 be provided, corresponding to the plate 9 according to F i g. 1 and 2.

In operation, the bottle 1 according to FIGS. 3 and 4 are held in any position provided that the air gap 14 is free of the liquid 3 and the sponge-like material 7 beforehand in the liquid 3 has been immersed or otherwise wetted by it. On squeezing the resiliently deformable walls 2 of the bottle 1 is in the cell spaces of the sponge-like Material 7 enclosed liquid 3 pushed up the dip tube 11 to the spray nozzle 6, and at the same time air is pressed through the air gap 14 to the nozzle 6, so that a fine mist is emitted.

The design according to FIGS. 5 and 6 is similar to that in fig. 5 and 6, except that a ring member 16 for holding the sponge-like Material 7 is present in the chamber 15 and that the plug 5 has a central bore with widenings or has recesses 17 which serve to hold the immersion tube 11 in place and the required air gaps to accomplish. There are no noses or warts 12 and overlapping parts 13. Advantageously can again be a perforated plate with a central hole through which the immersion tube 11 go can be in the plug 5.

The mode of operation of the embodiment according to FIGS. 5 and 6 is also with the way the design works according to the F i g. 3 and 4 identical.

The sponge-like material 7 is suitably one of the following three types of polyether derived from Vitafoam Limited (UK).

LHL / 17/22 designation
V / 8/10

V / 33/41

colour

Density (kg / m ³ )

Min. Tensile strength (kg / m ² )

Min. Elongation at break (90)

Hardness, Bitish Standard 3379 (40%) (kg)
Hardness, British Standard 3667 (50%) (kg)

Dark blue White 24 to 26 8 to 20 4.54 3.63 200 250 17.5 to 22 8 to 10 13 to 16 6 to 8

White
29 to 31

5.44
200

33 to 41
23 to 29

As this polyether as a sponge-like material 7, for example in the embodiments according to FIG. 3 and 4 and 5 and 6 were used, the dimensions of the sponge-like material were 7: starch 0.508 mm and diameter 0.66 mm. The inner diameter of the dip tube 11 was 0.107 mm, and there was 12.5 ml of water as liquid 3 in bottle 1. The following amounts of ejected were made Get fog:

Total area area for

at least 75%

the emissions

LHL / 17/22 V / 8/10 ..., V / 33/41 ...

0.048 to 0.055 ml 0.064 to 0.072 ml 0.050 to 0.065 ml 0.052 to 0.055 ml 0.067 to 0.070 ml 0.056 to 0.060 ml

1 sheet of drawings

Claims (6)

1 2 is only slowly erected again after tilting or is supposed to be necessary, for example, when administering the dose into a body opening of a bedridden patient, not in an upright position 1. Dosing device for a squeeze bottle, 5 used, runs out of the openings through with one with the fluid space of the squeeze which the measuring container is to be filled, again bottle connected liquid channel liquid, and the amount of liquid dispensed and one in connection with the airspace is too small. If not applied upright, results existing air duct for dispensing the liquid and there is also the possibility that liquid will run out the air to the outside through a nozzle, thereby injecting jo and too much. characterized in that the delivery path of the invention is based on the object of a Liquid to the outside to create an insert (7) made of porous metering device of the type mentioned sem, soakable with liquid, elastic to one of the liquid to be sprayed on a liquid-impermeable Packing can be dosed precisely and reproducibly in a compressible manner. 15 can. 2. Dosing device according to claim 1, characterized This object is achieved according to the invention characterized in that the insert (7) is released between that in the discharge path of the liquid to the outside Air duct and the nozzle. an insert made of porous, soakable with liquid, 3. Dosing device according to claim 1, characterized in that it is elastic to form a liquid-impermeable pack characterized in that the insert (7) is provided in flow compressible material. seen direction, in front of the liquid channel (11) It is possible here to use the air channel on the insert lies. to be carried out so that no dosing inaccurate 4. Dosing device according to one of the annexes by the incorporation of air in the liquid spray 1 to 3, characterized in that the channel or of substantial amounts of liquid in the The insert consists of polyurethane foam. 25 air duct can enter, or it can also be the 5. Dosing device to be guided through the insert after one of the air ducts, so that after claims 1 to 3, characterized in that the pressing together no longer a way out of the The insert consists of latex foam. Squeeze bottle leads out and even with awkward 6. Dosing device after one of the temptations of excessive squeezing of the bottle, no oversights 1 to 3, characterized in that the dose can be delivered. The insert consists of foamed polyether. Come as preferred materials for the liner foamed polyether in a spongy consistency, polyurethane foams and foam rubber or latex foam in question. 35 In the metering device according to the invention First, the insert is soaked with the liquid, depending on its arrangement in relation to the bottle Shaking, tipping over or the like. Can take place or is already given when standing upright. At the The invention relates to a dosing device 40 closing squeezing is first the in device for a squeeze bottle with a liquid absorbed by the insert expelled, at-liquid space Closing in connection with the squeeze bottle, however, the insert forms a barrier Liquid channel and one with the air valve, which allows a further passage of liquid Room-connected air duct to prevent. Dispense the amount of liquid dispensed the liquid and the air to the outside through 45 thus speaks of the liquid one that can be stored in the insert Jet. speed. Squeeze bottles, i.e. bottles with deformable sponge-like inserts in spray nozzles, are on Walls that have a nozzle in their neck, known by themselves (German utility model 1 890 596), when squeezing the bottle of liquid around as a seal a leakage of the on the head should be sprayed out or dispensed in a finely atomized form, 50 to prevent the bottle from standing up. These well-known are often used for the delivery of medication. Insoles are not elastically compressible and can be used, in particular for administering certain NEN does not have the effect achieved by the invention Drugs in nebulized form directly into the accomplish. Nose or mouth. With a metering device according to the invention It is difficult to find a squeeze bottle equipped with a bottle for such uses Reasonably accurate dosage of the dispensed liquid, even if it is inclined, in some cases even To achieve amount of liquid. For this purpose, a bottle is administered with the bottle upside down Dosing device for a squeeze bottle without any known inaccuracy of the dosing (U.S. Patent 2,989,215) which im must be feared. The handling requires we-bottle neck a measuring container is provided, the above 60 of the exercise still dexterity, and the device is too open on the side and the one connected to the nozzle is therefore also suitable for home use Immersion tube protrudes. By tilting the, for example, by the patient himself. The dosage Squeeze bottle is filled with the measuring container, and is reproducible within relatively narrow limits, The insert provided according to the invention is then squeezed together only the 65 remaining in the measuring container after tilting, expediently with the aid of perforated housing parts Liquid expelled. This well-known Dosiervor- held in a chamber, since only a rubbing direction However, such a pre-compression proves to be difficult and imprecise fit in the application. Namely, the bottle is required after that the amount of storable in it