Provensis Limited

Stafford Guy Moss

David Ian Faulkner

David Dakin Iorwerth Wright

Rex Faithfull

Thomas Wyss

Carol Suzanne Balfour

Thomas Ajao

The present invention relates to methods and devices for production of injectable foams, such as those used in the treatment of varicose veins and other venous disorders. The method requires the delivery or supply of foamable liquid sclerosing agent and a suitable gas or a gas mixture to a foam producing structure in which the liquid and gas are combined to produce foam, wherein the liquid is delivered independently of the delivery of gas. Devices for producing injectable foam comprise a foam producing structure in which liquid and gas are combined to produce foam, the structure comprising an inlet for liquid and gas and an outlet for foam; a liquid pathway in communication with the inlet; and a gas pathway in communication with the inlet, characterised in that the liquid pathway comprises a means for delivering liquid through the liquid pathway independently of gas delivery through the gas pathway. In preferred embodiments, the delivery of liquid and/or gas is controlled with volumetric pumps.

Method and device for generating injectable foam

This invention relates to apparatus and devices that generate sclerosing microfoams for the treatment of venous disorders, such as varicose veins. The invention includes adaptors which provide fluid connections to microfoam generating devices, to enable filling with gas and/or dispensing of the microfoam product. The adaptors are generally cylindrical elements with open ends to enable attachment to pressurisable container on one end and are configured to enable rapid and easy attachment of a filling means or a dispensing means through the other end of the adaptor. A particular configuration comprises three or more circumferentially and downward extending cam tracks which cooperate with corresponding cams on the filling means or dispensing means and which connect a pressurisable container to a fluid path of a filling or dispensing means when the pressurisable container and filling or dispensing means are rotated relative to each other.

Device for producing sclerosing microfoam

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London Greater London, United Kingdom

Stafford Guy Moss