Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1996-02-23
1998-07-14
McDermott, Corrine M.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604 83, 6048901, A61M 3700
Patent
active
057796769
ABSTRACT:
An apparatus for accurately infusing fluids into a patient at specific rates over an extended period of time. The apparatus is of a low profile, laminate or layered construction having a stored energy source in the form of a distendable membrane, which in cooperation with the base of the apparatus, defines one or more fluid reservoirs, each having a fluid inlet and a fluid outlet. The apparatus further includes, a novel, conformable ullage made of yieldable materials which uniquely conform to the shape of the elastomeric membrane as the membrane returns to its less distended configuration. This arrangement will satisfy even the most stringent medicament delivery tolerance requirements and will elegantly overcome the limitations of materials selection encountered in devices embodying solely a rigid ullage construction. Additionally, in one form of the invention, the apparatus includes a novel fill assembly for controllably filling the reservoirs of the device in the field.
REFERENCES:
patent: 4193397 (1980-03-01), Tucker et al.
patent: 4474575 (1984-10-01), Eckenhoff et al.
patent: 4668231 (1987-05-01), DeVries et al.
patent: 4968301 (1990-11-01), DiPalma et al.
patent: 4969873 (1990-11-01), Steinbach et al.
Barber Steve C.
Feng William W.
Kazemzadeh Farhad
Kluck William J.
Kriesel Marshall S.
Brunton James E.
McDermott Corrine M.
Science Incorporated
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