Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1997-04-24
2000-01-11
Coggins, Wynn Wood
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604 68, A61M 530
Patent
active
060130504
ABSTRACT:
A needleless syringe particle delivery system is provided. The needleless syringe comprises an elongate nozzle which is connected at its upstream end to an open ended capsule chamber. The capsule chamber is configured to house and intimately enclose a nonrigid capsule containing particles of a therapeutic agent. An opening means is provided at the upstream end of the capsule chamber, and is used to pierce the upstream end of a capsule in the chamber. After the capsule is opened, an energizing means connected to the upstream end of the capsule chamber applies a gaseous pressure sufficient to force the particles out of the capsule and the open downstream end of the capsule chamber and thus to create through the nozzle a supersonic gas flow in which the particles are entrained.
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Bellhouse Brian John
Drayson Paul Rudd
Greenford John Christopher
Sarphie David Francis
Coggins Wynn Wood
McCracken Thomas P.
Nguyen A. T.
PowderJect Research Limited
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