Powderject Research Limited

Other

Powder Pharmaceuticals Inc.

Avaxzipen Limited

John Watson

Stuart G Weekes

Nigel Robert Bates

Philip Thomas Price

Mark Anthony Fernance Kendall

Stuart Graham Weekes

Graham Ford

Edward R Smith

Charles Potter

A method of producing a particle cassette for a needleless syringe device which alleviates problems of providing a chamber for the confinement of particles which is hermetically sealed from the environment. A predetermined force is applied in the longitudinal direction to push first and second cassette parts together so as to cause plastic deformation of a portion of the first cassette part so as to create said hermetically sealed chamber. The cassette parts are preferably made of PETG and have bonded thereto rupturable membranes preferably made of PET. The sealing is preferably achieved at the end of a protrusion on the first cassette part which is tapered and which interacts with the membrane of the second cassette part.

Particle cassettes

A kit of parts for use in the manufacture of a particle cassette for a needleless syringe device. The kit may include a first cassette part having a first rupturable membrane sealed thereto and a second cassette part having a second rupturable membrane sealed thereto. The first and second cassette parts may be arranged to be attachable together so as to create a chamber for the confinement of particles between the first and second membranes. The first and second cassette parts may be substantially annular and the first cassette part defines a receptacle for receiving particles. The second cassette part may be attachable concentrically around or inside the first cassette part.

Particle cassette, method and kit therefor

Syringe

Growing community of inventors

Oxon, United Kingdom

John Watson