Infusion delivery system

Details Infusion delivery system Infusion delivery system

1999-03-12

2000-12-12

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604253, 604 65, 604 66, A61M 500

Patent

active

061591866

ABSTRACT:
Apparatus for providing control of infusion delivery using conventional infusion fluid bags includes an air bag which is pressurised by a pneumatic pump. A digital camera or imaging device is able to analyse drops passing through a drop chamber, by capturing an image of the drop as it passes through the drop chamber. The output of the imaging device is fed to an image processor which calculates the volume of the captured drop using the number of pixels in the image. An infra red detector detects each time a drops passes through the drop chamber, and the outputs of the both the image processor and the infra red detector are passed to a master controller. The master controller controls the fluid delivery process by counting the number of drops passing through the drop chamber and controlling a flow brake to achieve the required flow rate.

REFERENCES:
patent: 4328801 (1982-05-01), Marx et al.
patent: 4936828 (1990-06-01), Chiang
patent: 5186057 (1993-02-01), Everhart
patent: 5331309 (1994-07-01), Sakai
patent: 5588963 (1996-12-01), Roelofs
patent: 5856200 (1999-01-01), Krause et al.
Abstract of Japanese Patent No. JP 7,333,231, dated Dec. 22, 1995.

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