PNEUMATIC NEEDLELESS INJECTOR DEVICE Russian patent published in 2004 - IPC

FIELD: medical engineering.

SUBSTANCE: device has gas distribution unit and executive unit having locking and starting unit and button-type handle connected to power unit via high pressure sleeve. The power unit has head and pneumatic cylinder having working pneumatic dispenser. The gas distribution unit is designed as electropneumatic dispenser and has unit for switching it on. Ring-shaped magnet is mounted on the pneumatic piston engageable with sealed-contact reed relay movably installed on the pneumatic cylinder. Magnet is mounted in executive unit body. The sealed-contact reed relay engageable with the magnet is mounted on starting button.

EFFECT: reduced force applied; accelerated dose-setting operation.

2 cl, 3 dwg