TouchSpray

The vibrating membrane nebulizer is currently under development by Pari GmbH, (Germany), which is based upon the TouchSpray technology developed by The Technology Partnership pic (United Kingdom). The main aerosol generation principle is similar to that... 

More recently, The Technology Partnership has created several new forms of a perforated mesh atomizer known as TouchSpray . TouchSpray devices deliver... 

Smart J, Berg E, Nerbrink O, Zuban R, Blakey D, New M. TouchSpray technology Comparison of the droplet size measured with cascade impaction and laser diffraction. In Respiratory Dmg Delivery V Dalby RN, Byron PR, Farr SJ, eds. Interpharm Press Phoenix, AZ, 2002 525-532. 

TouchSpray can best be described as a vibrating-orifice ultrasonic nebulizer and was developed by the Technology Partnership (TTP), U.K. This technology has only recently been announced and little is as yet published (26). This new method for aerosol generation is compact (Fig. 11) and based on sound pressure, which forces fluids through small holes in a membrane. Unlike traditional... 

Figure 12 Touchspray schematic. Sound pressure forces fluid through small holes in a water-thin metal membrane which is vibrated by a piezoelectric actuator.

Commercial development of TouchSpray and Microjet technology has not yet occurred and we can only speculate on how each will be developed. TouchSpray seems to offer potential as an MDI replacement but also offers traditional nebulization applications with convenience and portability, given its small size and low power requirements. If it is manufactured in high numbers, the overall costs would be expected to be low. TouchSpray technology developed from ink-jet... 

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