Implantable, refillable infusion device and septum replacement kit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Dec 9, 2004
app pub date -
Jun 17, 2004
filing date -
Jan 11, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An implantable infusion device includes a lightweight, inert housing which contains an infusate for administration to a patient, and an enclosed, gas-impermeable variable volume chamber which contains a pressure source, such as propellant, mechanical spring, or the like. The variable volume chamber may be in the form of a rigid-walled expandable bellows structure or a nonstretchable flexible bag and is attached to the housing so as not to obstruct the entry port for introduction of infusate. The infusate is delivered from the device via a catheter in response to expansion of the variable volume chamber against the volume of infusate in the housing. A separate bolus injection port is provided which allows infusate to be safely introduced directly into the catheter and overrides the controlled pressure-driven delivery. The lightweight housing may include integrally formed needle stops and suture fastening loops.
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