Device for treating human keratinous material, in particular with the aid of an electric current

Patent metadata

Field	Value
Publication number	US-11510477-B2
Application number	US-201616061875-A
Country	US
Kind code	B2
Filing date	Dec 6, 2016
Priority date	Dec 17, 2015
Publication date	Nov 29, 2022
Grant date	Nov 29, 2022

Abstract

A device for treating human keratinous material, in particular with the aid of an electric current. The device includes a reservoir containing a composition, in particular cosmetic or dermatological, to be applied to the keratinous material, and an end fitting for the application of the composition contained in the reservoir, the end fitting comprising a plurality of application members and a distributor. The distributor includes at least one storage cavity for the composition and supply orifices to conduct the composition from the storage cavity or cavities to the application members, and the distributor being configured so that the flow rate of the composition arriving at the application members is identical to within 20% for at least two application members, better for each application member.

First claim

The invention claimed is:

1. A device for treating human keratinous material, with the aid of an electric current, comprising:
a reservoir containing a composition to be applied to the keratinous material, and
an end fitting for the application of the composition contained in the reservoir, the end fitting comprising a plurality of application members and a distributor, the distributor comprising at least two storage cavities for the composition and supply orifices to conduct the composition from the storage cavities to the application members, the supply orifices are angled relative to one another along a longitudinal axis of the device, have angled flow paths relative to one another, and are configured to dispense the composition onto outer surface of the application members internally within the device;
the distributor being configured so that the flow rate of the composition arriving at the application members is identical to within 20% for at least two application members,
wherein portions of the storage cavities that are directly connected to the supply orifices are laterally offset relative to and do not lie directly below a bottom of each application member along the longitudinal axis of the device, and
the device comprising an electrical supply system for exposing the keratinous material to an electrical treatment current in a zone of application of the composition,
the distributor comprising two opposite sides, a first side on which are made housings for the application members, and a second side on which is made said at least two storage cavities for the composition.

2. The device as claimed in claim 1 , in which the distributor is configured such that the length of the path traversed by the composition in order to arrive at a given housing of an application member is substantially equal to the length of the path traversed by the composition in order to arrive at another housing of an application member, to within 30%.

3. A device for treating human keratinous material, with the aid of an electric current, comprising at least:
a reservoir containing a composition, to be applied to the keratinous material, and
an end fitting for the application of the composition contained in the reservoir, the end fitting comprising a plurality of application members and a distributor, the distributor comprising at least two storage cavities for the composition and supply orifices to conduct the composition from the storage cavities to the application members, the supply orifices are angled relative to one another along a longitudinal axis of the device, have angled flow paths relative to one another, and are configured to dispense the composition onto an outer surface of the application members internally within the device;
the distributor being configured so that the flow rate of the composition arriving at the application members is identical to within 20% for at least two application members in which at least two supply orifices have different transversal cross sections, and
the device comprising an electrical supply system for exposing the keratinous material to an electrical treatment current in a zone of application of the composition.

4. The device as claimed in claim 1 , comprising several application members.

5. The device as claimed in claim 1 , in which at least one application member is a ball.

6. The device as claimed in claim 1 , in which at least some of the application members are organized as a polygon.

7. The device as claimed in claim 1 , the distributor comprising a first face on which are made housings for the application members.

8. The device as claimed in claim 1 , the distributor comprising peripheral cavities, each of the peripheral cavities being able to enable the composition to be conveyed to several application members.

9. The device as claimed in claim 8 , in which at least one peripheral cavity is configured to convey the composition to two application members.

10. The device as claimed in claim 1 , the distributor comprising at least one central cavity.

11. The device as claimed in claim 1 , in which at least one peripheral cavity has a rectilinear channel shape, a supply orifice emerging at each of their ends.

12. The device as claimed in claim 1 , comprising a diffuser directly in contact with the distributor, making it possible to feed the composition into the cavity or cavities of the distributor.

13. The device as claimed in claim 2 , comprising a cover configured to be able to retain the application members in the housings of the distributor, the cover comprising openings through which the application members can protrude to the outside to allow the application of the composition.

14. The device as claimed in claim 1 , in which the distributor is electrically connected to the electrical supply system.

15. The device as claimed in claim 1 , in which the distributor is one-piece.

16. The device as claimed in claim 1 , wherein the application members are not internally traversed by the composition.

17. The device as claimed in claim 1 , wherein the application members are free in the housings.

Assignees

• Oreal
• Seb Sa

Inventors

• Planard-Luong Thi Hong Lien
• Mandica Franck
• Pernot Helene
• Sabattier Johan

Classifications

• A61N1/0432

  Anode and cathode · CPC title

• A45D40/0075

  with dispensing means · CPC title

• A61N1/325

  for iontophoresis, i.e. transfer of media in ionic state by an electromotoric force into the body (electrodes for external use A61N1/0428) · CPC title

• A61N1/327

  for enhancing the absorption properties of tissue, e.g. by electroporation · CPC title

• A45D34/041 Primary

  using a roller, a disc or a ball · CPC title