The present invention discloses an eco-friendly recyclable dropper, comprising a pressing portion and a pipette, wherein a bottom of the pressing portion is wrapped around a top of the pipette, wherein a bottom inner wall of the pressing portion includes a concave groove, wherein a top outer wall of the pipette includes a corresponding convex circle, wherein the concave groove matches with the convex circle and become airtight based on the characteristics of both material, wherein the pressing portion is made of PE material, wherein the pipette is made of PP material. Since the pressing head is made of PE material or a mixture material of PE and PP, and the pipette is made of PP material, a combination of the pressing head and the pipette is better in airtightness comparing to prior arts using glass pipettes; furthermore, the design of the pressing head and the concave groove and the convex circle of the pipette provides better airtightness; the dropper and the bottle of this invention both used PP and PE material, which can be fully recycled and reused after using the liquid within, avoids environmental pollution and saves resources. The market of this invention is very wide and this invention has a breakthrough meaning in the dropper field.

Provided is a contents container including a container body in which contents are stored and from which a neck portion having an open upper surface protrudes upward; and a discharge portion separably coupled to neck portion of the container body. Here, the discharge portion includes a pipette portion inserted into the container body through the neck portion and configured to suction in and discharge the contents, a cap portion formed above the pipette portion and detachably coupled to the neck portion so as to seal the container body, and a pressurizing portion formed above the cap portion and configured to generate a change in pressure for suctioning and discharging the contents into and from the pipette portion. Also, the discharge portion is formed of the same type of material.

Provided is a contents container including a container body in which contents are stored and from which a neck portion having an open upper surface protrudes upward; and a discharge portion separably coupled to neck portion of the container body. Here, the discharge portion includes a pipette portion inserted into the container body through the neck portion and configured to suction in and discharge the contents, a cap portion formed above the pipette portion and detachably coupled to the neck portion so as to seal the container body, and a pressurizing portion formed above the cap portion and configured to generate a change in pressure for suctioning and discharging the contents into and from the pipette portion. Also, the discharge portion is formed of the same type of material.

A method for collecting a liquid sample from the oral cavity and oropharyngeal area comprises in part: pouring a non-alcoholic mouth rinse into the oral cavity; using a collection swab comprising a sponge head to scrub the inside of the oral cavity; and inserting the collection swab under the tongue to absorb the mouth rinse. The non-alcoholic mouth rinse is a composition comprising: a therapeutic antimicrobial mouth rinse; a salt; and a mucolytic agent. An in vitro immunochromatographic assay comprises in part: collecting a liquid sample from the oral cavity and oropharyngeal area; adding a portion of the liquid sample to the sample port of a test card capable of immunochromatographic assay; and viewing the results on the test card. The assay is applicable to the qualitative detection of SARS-CoV-2 virus antigen. A kit for the qualitative detection of SARS-CoV-2 virus antigen is also disclosed.

The present invention relates to a tube assembly for dripping. According to an embodiment, a tube assembly for dripping includes a tube (100) having a hole (H) at an upper portion thereof, and a filter tip (200) having a tip (210) including, an insertion part (211) inserted into the hole (H) of the tube (100) and, an expansion part (212) connected to the insertion part (211) and having a diameter that is larger than that of the hole (H), and a discharge pipe (213) connected to the expansion part (212) and acting as a passage, through which a solution (S) stored in the interior of the tube (100) is discharged, wherein a discharge adjusting part (213a) having a discharge hole (h) having a predetermined diameter (d1) is formed in the interior of the discharge pipe (213) that is spaced apart from a lower end of the discharge pipe (213) by a predetermined distance.

A method for preparing a buffer solution suitable for physiologically relevant in vitro drug dissolution testing, drug solubility testing and/or drug profiling, the method comprising: (a) dispensing from a deformable container into a second container a predetermined quantity of a concentrate of the buffer solution, said deformable container having an orifice or aperture configured to dispense the concentrate in a dropwise manner and/or in a controlled stream, and (b) diluting the predetermined quantity of the concentrate with a predetermined quantity of a solvent to produce the buffer solution. A pack comprising a container and a concentrate of said buffer solution within the container, and a method for preparing the said pack, are also provided.

In various implementations, a dropper for a bottle may include a bulb with a flange and an extended leg. The dropper may be used as a cap, in some implementations, with or without a skirt. The dropper may inhibit leaks from a bottle when the dropper is used as a cap for the bottle.

A device for dispensing drops of a liquid or semi-liquid product is provided having an axial tube (12) which has an elastically deformable outer jacket defining an internal space (16) enclosing the product and a neck (14) which defines an open internal passage for the passage of the product. A system for generating drops has an elastic deformable piece (22) mounted inside the neck of the tube around a rigid member (24). The elastically deformable piece has an opening end part (30b) situated outside of the neck and through which the product can exit from the system in case of pressure on the outer jacket. The opening end part (30b) is deformed into a first position when it is mounted to bear on an opening end (36) of the rigid member when no pressure is exerted on the jacket of the tube.

Liquid dispensers for bottles comprise a dispensing chamber having small portals at either end. Dropwise addition of flavoring or coloring liquids, such as vermouth or bitters, to alcoholic beverages using those liquid dispensers is also disclosed.