Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Reexamination Certificate
2004-10-25
2008-10-28
Sirmons, Kevin C. (Department: 3767)
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
Reexamination Certificate
active
07442182
ABSTRACT:
A needle-free injection device, including a plunger and a spring operatively coupled with the plunger. The plunger is slidably disposed within a fluid chamber, is retractable to draw injectable fluid into the fluid chamber through an injection orifice, and may be advanced within the fluid chamber to forcibly eject injection fluid out through the injection orifice. The spring is configured to be compressed during arming of the injection device, and decompressed during discharge to forcibly advance the plunger within the fluid chamber. The injection device further includes an actuator operable to cause the spring to be compressed during arming of the injection device, and selectively operable prior to decompression of the spring to cause the plunger to be moved to a desired position within the fluid chamber.
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Landau Sergio
Sautter Christopher
Bioject Inc.
Kolisch & Hartwell, P.C.
Sirmons Kevin C.
Witczak Catherine N
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