Surgery – Respiratory method or device – Means for mixing treating agent with respiratory gas
Reexamination Certificate
2006-03-07
2009-06-02
Erezo, Darwin P (Department: 3773)
Surgery
Respiratory method or device
Means for mixing treating agent with respiratory gas
C128S203120, C128S203210
Reexamination Certificate
active
07540285
ABSTRACT:
A medicament delivery device for administering a medicament to a user includes a medicament reservoir and an entrance port and an exit port and a gas chamber disposed adjacent the entrance port. The device includes a pressurizing mechanism to pressurize the gas chamber. The device also contains frangible membranes and may include a piercing member. In use, the frangible membranes in the device are responsive to pressure in the gas chamber and are either pierced or burst to allow gas to flow through the entrance port and the reservoir and to carry the medicament through the exit port.
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Bhuta Anjana
Connelly Robert I.
Pettis Ronald J.
Shermer Charles D.
Sullivan Vincent J.
Becton Dickinson and Company
Erezo Darwin P
West Robert E.
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