Implantable device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Nov 30, 1999
Grant Date -
N/A
app pub date -
Apr 23, 1998
filing date -
Apr 23, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention provides an implantable drug infusion device which features a reliable and leak proof weld joint. The implantable drug infusion device features a hermetic enclosure; a drug reservoir positioned within the hermetic enclosure, a drug handling component, the drug handling component joined with a top surface of a docking station, the drug reservoir joined with a bottom surface of the docking station by a welded joint. The drug handling component typically being a MEMS-type device and fashioned from a silicon-glass or silicon--silicon sandwich. The docking station functions to isolate the thermal stresses created during the formation of the welded joint from the other joints and particularly from the joint between top surface of the docking station and the drug handling component. The thermal isolation function of the docking station is provided through one or more grooves within the docking station, the grooves functioning to separate, in a thermal manner, the top and bottom surfaces of the docking station.
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