Device for dispensing a liquid in the form of drops

Patent metadata

Field	Value
Publication number	US-11524822-B2
Application number	US-202117489311-A
Country	US
Kind code	B2
Filing date	Sep 29, 2021
Priority date	Mar 27, 2008
Publication date	Dec 13, 2022
Grant date	Dec 13, 2022

Abstract

The device makes it possible to dispense predetermined metered quantities of liquid. It includes a sealing member that can take up a liquid release position, allowing liquid to flow out of the device, and a non-return position preventing liquid from flowing back into the device. The sealing member is provided with metering means for metering out the liquid to be dispensed.

First claim

What is claimed is:

1. A device for dispensing predetermined metered quantities of liquid, which device includes a sealing member that can take up a liquid release position, allowing liquid to flow out of the device, and a non-return position preventing liquid from flowing back into the device, wherein the sealing member is provided with a metering element for metering out the liquid to be dispensed, the metering element for forming drops of liquid, the device including a liquid-passing channel opening out into the metering element and the metering element comprising a flared shape that flares from said channel.

2. The device according to claim 1 , including a bearing element for bearing against the sealing member, in register with a recessed zone, serving to deform the sealing member by bending deformation so that it takes up its non-return position.

3. The device according to claim 1 , wherein the sealing member is flexible at least in part, and the device includes a bearing element for bearing against the sealing member, serving to deform the flexible portion of the sealing member by compression deformation so that it takes up its non-return position.

4. The device according to claim 1 , wherein the flared shape opens out into a substantially cylindrical shape.

5. The device according to claim 1 , wherein the sealing member is an elastomer element that is made entirely of elastomer.

6. The device according to claim 1 , wherein the sealing member comprises an elastomer portion and a rigid portion, said portions being constrained to move with each other.

7. The device according to claim 6 , wherein the metering element is formed in the rigid portion.

8. The device according to claim 1 , wherein the portion of the sealing member that is provided with the metering element is disposed in the immediate vicinity of an orifice for releasing liquid from the device.

Assignees

• Nemera La Verpilliere

Inventors

• Painchaud Gaëtan
• Lanzi Sylvain
• Julia Xavier
• Grevin Guillaume

Classifications

• A61F9/0008

  Introducing ophthalmic products into the ocular cavity or retaining products therein (putting in contact lenses A61F9/0061; introducing or retaining media in cavities of the body in general A61M31/00) · CPC title

• A61J1/1425

  Snap-fit type · CPC title

• B65D47/2081

  in which the deformation raises or lowers the valve port · CPC title

• B65D47/205

  the valve being formed by a tubular flexible sleeve surrounding a rod-like element provided with at least one radial passageway which is normally closed by the sleeve · CPC title

• A61J1/1468

  Containers characterised by specific material properties · CPC title