Virbac Corporation

Laboratoires Virbac

Christian Karst

Guy Derrieu

Jean-Luc Pougnas

Patricia Monginoux

Luc Castelli

Thierry Grenier

Bruno Roy

Thierry Gozlan

The present invention relates to compositions which contain at least one cationic polymer and at least one active molecule contained in at least one micro or nanoparticulate vector, and their use for treating living or inert surfaces.

Compositions which contain at least one cationic polymer and at least one active molecule contained in at least one micro or nonopartculate vector, and their use for treating living or inert surfaces

Device designed to be carried by an animal and capable of controlled release of one or several active principles and, more particularly, one or several medicinal active principles to protect and/or treat this animal against possible pathologies, and capable of being used as a restraint for controlling and managing the animal. In one embodiment the device is used with a leash or lead fixed to the device. Method for making the device. The device comprises a first material for the controlled release of one or several active substances of polymer matrix type containing this active substance and a second material for providing it with mechanical resistance, the materials being closely bound within a single structure.

Device for controlled release of active substances and for restraint and method for making same

Device capable of being used in combination with a restraining or ornamental collar or with any other support for animals, intended to make possible the controlled and optically continuous and complete release of chemical substances, including medicaments, for more or less lengthy, continuous or noncontinuous, periods and process for producing the said device. The device comprises a polymeric matrix enclosing at least one active substance capable of being released towards an appropriate area of an animal. The device is composed of at least one tubular component of any cross-section, containing at least one layer of flexible polymeric matrix containing at least one active substance, the length of the said tubular component can be regulated to adjust the daily dose of the active substance to the weight of the animal and the ratio of the external surface area of said tubular component to the thickness of its' wall is as great as possible to obtain linear removal of the active substance.

Controlled-release device and preparation process

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Villeneuve Loubet, France

Christian Karst