Infusion apparatus with constant force spring energy source

Details Infusion apparatus with constant force spring energy source Infusion apparatus with constant force spring energy source

2007-05-22

2007-05-22

Williams, Catherine S. (Department: 3763)

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

C604S890100, C604S246000, C604S248000, C604S207000, C604S211000, C604S216000

Reexamination Certificate

active

10634625

ABSTRACT:
A fluid dispenser for use in controllably dispensing fluid medicaments, such as antibiotics, oncolytics, hormones, steroids, blood clotting agents, analgesics, bio pharmaceuticals and like medicinal agents from a reservoir that has been filled from prefilled containers. The fluid dispenser includes a housing to which fill vials can be connected for filling the dispenser reservoir with the fluid, and a stored energy source provided in the form of a substantially constant-force spring that provides the force necessary to continuously and uniformly expel fluid from the device reservoir. The fluid dispenser also includes a fluid flow control assembly that precisely controls the flow of the medicament solution to the patient.

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