Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1995-10-11
1998-07-07
McDermott, Corrine M.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604 82, 6048901, 128DIG12, A61M 3700
Patent
active
057761035
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 conforms 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 infusion cannula of the apparatus is connected to the base of the apparatus in a novel manner which permits expeditious subdermal delivery of liquid medicaments to the patient via a cannula which extends generally perpendicularly from the base.
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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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