Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1988-04-13
1989-05-30
Pellegrino, Stephen C.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604 57, 604132, 6048911, A61M 500
Patent
active
048347043
ABSTRACT:
A two-stage injection device has a resiliently expandable medication reservoir stored in collapsed state within the cannula. After inserting the cannula through the skin into an animal cavity, depression of a first stage element injects the reservoir out the cannula into the cavity. Depression of a second stage element fills the reservoir with fluid medication, elastically expanding the reservoir. The injection apparatus is withdrawn, leaving the reservoir implanted in the cavity, continuously infusing medication for a period up to hundreds of days through a restrictor orifice under the pressure of the elastically stretched walls of the reservoir.
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Eaton Corporation
Pellegrino Stephen C.
Vande Zande L. G.
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