Laboratoires Thea

Laboratories Thea

Ost-developpment

Laboratoires Thea S.a.

Michel Faurie

Alain Defemme

Fabrice Mercier

Jacques Luyckx

Jean-Pierre Lontrade

Jean-Frédéric Chibret

Henri Chibret

Thierry Coquel

Robert Boniface

Pablo Goldschmidt

The present invention relates to a bottle for packaging a liquid to be distributed drop by drop comprising a reservoir the walls of which can be reversibly elastically deformed by letting air into the container, surmounted by a liquid dispensing head comprising a dropper nozzle protruding from the bottle and an anti-bacterial filter membrane, that is partially hydrophilic and partially hydrophobic, interposed across the path of the liquid and the air, at the base of the said nozzle. In the dispensing head, the proposal is to create the nozzle by itself out of a material containing a bactericidal agent that has the effect of preventing any bacterial growth on the surface of the said nozzle on the outside of the antibacterial membrane. A porous core is advantageously positioned inside the duct through which liquid is expelled and air is admitted.

Bottle for packaging liquid that is to be dispensed drop by drop, with antibacterial protection

The invention concerns a container for packaging a liquid () to be dispensed in drops. The container is reversibly deformable by air input and is equipped with a head () for dispensing liquid through a nozzle (). The dispensing head () comprises a recessed body () which is nested inside a neck () of the container and which holds a hydrophobic microporous pad () arranged upstream of a chamber (). Chamber () is provided with an air reservoir for preventing the liquid from passing through the microporous pad () between two liquid dispensing operations, when the nozzle () is sealingly obstructed with a cap (), and for drying a partly hydrophilic and hydrophobic filtering membrane () arranged in the dispensing head ().

Container for packaging a liquid to be dispensed in drops, reversibly deformed by air input

The invention concerns a device comprising a flask ( ) with variable internal volume having a rigid neck ( ) wherein is arranged the body ( ) of a dispensing head ( ) ending in a conduit ( ) discharging the liquid and containing a microporous pad ( ) for generating a head loss regulating the liquid flow pushed therethrough into a distribution chamber ( ) communicating with said conduit. The pad is advantageously made of a material inert with respect to the liquid and combined with an antibacterial filtering element ( ) preventing outside air from entering the flask. It evenly occupies the body ( ) over the whole cross-section of the liquid passage.

Device for packaging a liquid to be dispensed drop by drop

Osteoplasty material substantially devoid of antigenic proteins, wherein the material contains a natural bone structure in which non-denatured type I collagen is integrated, is prepared by selective extraction of bone tissue of human or animal origin. The selective extractant is an aqueous solution of 2-10 molar urea, and the extraction step is conducted at preferably 10.degree.-30.degree. C.

Method of manufacture of a material for osteoplasty from a natural bone

Growing community of inventors

Veyre-Monton, France

Michel Faurie