Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Reexamination Certificate
2005-11-29
2005-11-29
Lucchesi, Nicholas D. (Department: 3763)
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
Reexamination Certificate
active
06969370
ABSTRACT:
A drive mechanism for an injection device is disclosed in which piston means are selectively driven to expel medicament from within a medicament cartridge. The drive mechanism comprises a drive means (270), first means (278) associated with the drive means, second gear means (274) being moveable between a first position in wich only movement along its longitudinal axis is permitted and a second position in which the second gear means (274) is free to rotate about the longitudinal axis, the piston means (280) being associated with the second gear means (274), a housing (276) within which the first gear means (278) and the second gear means (274) are constrained for movement, and biassing means (282) located between the housing (276) and a second gear means (274) to bias the second gear means (274) to the first position.
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Day Shane Alistair
Langley Christopher Nigel
Veasey Robert Frederick
Woolston Robert
DCA Design International Limited
Lucchesi Nicholas D.
Thompson Michael M.
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