Metal working – Method of mechanical manufacture – Electrical device making
Patent
1995-05-22
1997-06-24
Echols, P. W.
Metal working
Method of mechanical manufacture
Electrical device making
174 523, H01R 4300
Patent
active
056407645
ABSTRACT:
A method and apparatus for hermetically sealing implantable devices, such as a microstimulator, moicrotransducer, microtelemeter, or the like, prevents entrapment of water vapors and other volatile gases, and allows hermeticity testing at all manufacturing levels. The venting of water vapors and other volatile gases is accomplished with a tubular feedthrough that allows such gases trapped within the sealed device to vent during the manufacturing process. The tubular feedthrough also establishes a conduit through which leakage tests or other hermeticity tests can be conducted prior to and after sealing the feedthrough. The tubular feedthrough, when made from conductive materials, also provides for electrical connections between electronic circuits sealed within the device and electrodes and other electrical terminals on the outside of the capsule.
REFERENCES:
patent: 4152540 (1979-05-01), Duncan et al.
patent: 4850227 (1989-07-01), Luettgen et al.
patent: 4991582 (1991-02-01), Byers et al.
patent: 5312439 (1994-05-01), Loeb
patent: 5405367 (1995-04-01), Schulman et al.
Alfred E. Mann Foundation for Scientific Research
Coley Adrian L.
Echols P. W.
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