Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Reexamination Certificate
2011-04-26
2011-04-26
Sirmons, Kevin C (Department: 3767)
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
C604S136000, C604S139000, C604S157000, C604S187000, C604S197000, C604S201000, C604S218000, C604S232000
Reexamination Certificate
active
07931618
ABSTRACT:
A reloadable medicine injector and methods are described in which a barrel with a receiving cavity is adapted to slidably receive a syringe subassembly for axial movement therein. Upon removal of a safety and release of a syringe driver, the syringe driver moves forward and injects the syringe needle. A plurality of penetration controls are shown for controlling injection needle penetration depth. The penetration controls have an abutment and various lengths to provide different needle penetration depth positions. In one form of penetration control a sleeve is used against which the syringe or related parts contact. In another form the front return spring is used as a penetration control. A cushioning ring may be used to reduce syringe breakage. A load distribution and guide ring may be used to distribute loading applied to the syringe and help guide the moving syringe.
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Schell Laura C
Sirmons Kevin C
Washington Biotech Corporation
Wells St. John P.S.
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