US2449125A - Applicator for liquid medicinal preparations - Google Patents

Description

Sept. 14, 1948. E. A. H. KING 2,449,125

APPLICATORS FOR LIQUID MEDICINAL PREPARATIONS Filed Dec. 1a, 1946 ATTORNEYS Patented Sept. 14, 1948 APPLICATOR FOR LIQUID MEDICINAL PREPARATIONS Edward A. H. King, Port Washington, N. Y. Application December 18, 1946, Serial No. 716,983

2 Claims. 1

The present invention relates to applicators for liquid medicinal preparations, and more particularly to applicators for applying such preparations to the nasal passages.

It is very desirable to be able to administer a predetermined dosage of medicated fluid in the form of a nasal spray. It is likewise frequently desirable to be able to administer such a. dosage in the form of drops instead of a spray.

An object of the invention is to provide a nasal atomizer which permits administration of a predetermined dosage.

Another object of the invention is to provide an atomizer which may also be used as a dropper.

In accordance with a feature of the invention, the atomizer may be filled without bringing the nose-piece into contact with the medication.

From another aspect, the invention permits the aspiration of the liquid medication in the form of a spray while the head of the patient is tilted slightly forward. This position is considered in certain instances to be particularly desirable for the application of medicinal solutions to nasal passages.

Other and further objects will become apparent upon reading the following specification together with the accompanying drawing forming a part hereof.

Referring to the drawing:

Fig. 1 shows a side view of a bottle with an embodiment of the invention secured therein;

Fig. 2 shows an enlarged sectional view in elevation of the embodiment of the invention shown in Fig. 1 taken along the line 2-2 of Fig. 1 in the direction indicated by the arrows;

Fig. 3 is a view similar to Fig. 2 tilted to show the operation of the invention as a dropper.

Referring to the drawing, a nosepiece 3, of suitable material which may be rubber, is secured to tube 4. Tube 4 is closed at its lower end to form a chamber, the open upper end being closed by the nosepiece 3.

Disposed substantially concentrically within the nose piece 3 and tube 4 is a smaller tube or duct 5, open at both ends. The lower end of tube 5 extends in close proximity to the closed bottom portion of tube 4. Tube 4 is provided with an orifice spaced from the bottom of the tube to permit the retention within the tube or chamber of a maximum amount of liquid which is substantially equal to the correct dosage, or a simple fraction thereof.

The small tube 5 is provided with a lateral aperture 1 adjacent to the point where it enters nose-piece 3.

2 In operation, using the device as an atomizer, nose piece 3 is inserted in a nostril. Upon inhaling, the liquid rises in small tube 5 to aperture 1. Air entering outer tube 4 through orifice 6 passes through lateral aperture 1 in smaller tube 5 where it mixes with the rising liquid to form a spray. The spray emerges from the upper end of tube 5 into the nostril.

When used as a dropper, the device is tilted as shown in Fig. 3. In this case, the liquid enters tube 5 through aperture 1 emerging from its open end in form of drops. The dropping action may be controlled by stopping orifice 6 with a finger to control the amount of air admitted to the outer tube 4.

The device may be placed in a bottle 8, as shown in Fig. 2, the flange it of nose piece 3' serving to hold the device in position at the same time sealing the mouth of the bottle. A screw type cover 9 will grip flange ll'i securing it in position and at the same time will close the opening in nose pieceii, further tending to prevent leakage if the bottle is carried about on the person of the user. As long as the liquid level in the bottle remains above orifice 6 as shown in Fig. 2, the correct dosage will remain in the bottom of tube 4 each time the device is withdrawn for use.

I have described what I believe to be the best embodiment of my invention. I do not wish, however, to be confined to the embodiment shown, but what I desire to cover by Letters Patent is set forth in the appended claims.

I claim:

1. In an applicator for liquid medicinal preparation, a closed chamber comprising a side wall having an orifice therein near the bottom or the chamber spaced from the bottom to retain a predetermined amount of liquid between the orifice and the bottom of the chamber, a tube open at both ends extending into a regionadjacent to the bottom of the chamber and having a lateral spray-forming aperture therein situated at an appreciable distance above the orifice and disposed to admit liquid into the tube intermediate the ends thereof, whereby tilting the applicator to a position where the upper end of the tube is in a position below the level of the liquid in the chamher will permit the predetermined amount of liquid to enter the tube through the lateral sprayforming aperture emerging from the tube in the form of drops and the drawing of air upwardly through thetube will cause the liquid to rise therein to the spray-forming aperture where it will mix with air entering the aperture to form a spray.

2. In an applicator for liquid medicinal preparations, a chamber closed at one end and open at the other and having a, lateral orifice near said closed end, a nosepiece closing the other end of the chamber, and a duct member extending centrally through the nosepiece into close proximity to the closed end of the chamber and having a spray-forming .orifice therein situated within the chamberand in close proximity to the nosepiece, said first-named lateral orifice being located at a distance from the closed end of the chamber to retain a predetermined dosage of liquid therein when the applicator is vertically positioned with said closed end downward, whereby substantially the entire predetermined :dosage may be administered either as a spray by application of the nosepiece to a nostril accompanied 4 of drops by positioning the applicator with said closed end upward.

EDWARD A. H. KING.

REFERENCES CITED The following references are of record in the file of this patent:

' UNITED STATES PATENTS Number Name Date 1. 166,729 Sykes Aug. 1'7, 1875 11.11788 Preston Oct. 15, 1889 .1 1 1,314,736 Dorment Sept. 2, 1919 15 FOREIGN PATENTS Number .Country Date 174 540 "Great Britain Feb. 2, 1922 ,-582,-12i Germany Aug. 9, 1933

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