Drug administration device over full protection valve
First Claim
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1. An apparatus comprising:
- a. an implantable housing containing a reservoir;
b. a catheter in fluid communication with said reservoir;
c. a fill port in fluid communication with said reservoir; and
,d. means coupled to said fill port for preventing said reservoir from becoming over filled from said fill port.
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Abstract
A technique for protecting an implantable drug administration device from damage caused by over filling. The protection is implemented using an automatic valve positioned between the puncturable sealing septum and the reservoir. This automatic valve is operated volumetrically by coupling the valve actuator to the diaphragm which separates the drug chamber from the fluid volume compensation chamber. When the diaphragm flexes to the maximum fill position, the valve actuator closes the automatic valve, thus prohibiting any further transfer to the reservoir.
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Citations
10 Claims
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1. An apparatus comprising:
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a. an implantable housing containing a reservoir; b. a catheter in fluid communication with said reservoir; c. a fill port in fluid communication with said reservoir; and
,d. means coupled to said fill port for preventing said reservoir from becoming over filled from said fill port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification