External use medicine quantitative feeding device
The invention provides a kind of dosing device of liquid preparation for external use.
Any medicine all needs to pay effect according to certain and dosed administration (being dosed administration) otherwise can not bring into play due curative effect or produce serious poison.Present various liquid preparation for external use (as liniment, liniment etc.) has two kinds of administering modes, a kind of is to dip in cotton balls etc. to be applied in skin after getting an amount of medicinal liquid, another kind is to live a sponge at bottle mouth position plug (folder), and on the description of this medicament, indicate " smear * * milliliter " at every turn, in these two kinds of administering modes, before a kind of obviously can't dosed administration, although a kind of having indicated in back " smear * * milliliter " at every turn, in fact patient is difficult to realize.
The objective of the invention is to: provide a kind of dosing device of liquid preparation for external use, to solve the dosed administration problem of the existing and following various liquid preparation for external uses.
Technical scheme of the present invention is: this device is made up of applying head, quantity tube, conduit, bottleneck and bottle.The outer surface of the rubber applying head that the top is with holes cooperates (being that applying head is closely filled in the quantity tube) with the inner surface of quantity tube, the outer surface of quantity tube cooperates (being that quantity tube closely is tucked in the bottleneck) with the inner surface of bottleneck; The quantity tube bottom is connected with a long duct, and this conduit upwards extend in the quantity tube, the centre that quantity tube is approached in its upper end, and the volume of the hollow circular cylinder that upper end horizontal plane and quantity tube bottom are constituted is 0.5~10ml; This conduit is inserted into downwards in the bottle, at the bottom of it approaches bottle bottom.Medicinal liquid just is squeezed in the quantity tube when pinching the bottle of being made by flexible plastic with hands, and the unnecessary medicinal liquid that is higher than catheter tip after loosing one's grip then retains down certain volume (0.5~10ml) medicinal liquid in the quantity tube in conduit flows back to bottle.The upset bottle, applying head (as Fig. 2) down is applied in skin with above-mentioned a certain amount of medicinal liquid, gets final product.
Advantage of the present invention is: need not use various proportional valves, also not need any physician guidance, can be realized the dosed administration of liquid preparation for external use by patient oneself fully, thereby guarantee the effectiveness and the safety of medication; And this apparatus structure is simple, and is with low cost, do not need any special installation, be easy to make, and be the dosing device of comparatively now thinking of various liquid preparation for external uses.
Description of drawings:
Fig. 1 is the structure principle chart of dosing device of the present invention.
1. enclosing cover; 2. eyelet; 3. applying head; 4. quantity tube; 5. conduit;
6. bottom the quantity tube; 7. bottleneck; 8. bottle; The bottle end
The administration state diagram of Fig. 2 dosing device of the present invention.
Wherein: 10. liquid level; 11. medicinal liquid; 12. quantitative medicinal liquid.
Most preferred embodiment of the present invention is: by turn round, quantity tube, conduit, bottleneck, bottle and enclosing cover constitute this device.The rubber applying head (3) that will have the 0.2mm aperture is filled in the quantity tube (4), and the outer surface of applying head and the inner surface of quantity tube are closely cooperated; Quantity tube (3) being filled in makes quantity tube outer surface and bottleneck inner surface closely cooperate again in the bottleneck (7); Make conduit (5) upper end be positioned at 2/5 place of quantity tube total length, and to make the volume of the hollow circular cylinder that conduit upper end horizontal plane constituted bottom quantity tube be 2ml; Make the following end distance bottle 2mm of conduit, catheter diameter is 1.5mm, and external diameter is 2mm.With hands pinching bottle (8), quantitative medicinal liquid (2ml) is coated with by applying head with holes puts on the skin in skin (but pinching bottle) in case of necessity, get final product.