IV fluid delivery system
OwnerStephen H. O'Learyinventor
Life of this patent
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Abstract
An IV fluid delivery system for use with a resilient, deformable tube, wherein a mechanism is provided to deform and occlude said tube by a plurality of fingers, as well as, to restore the cross-sectional area of said tube by those fingers, so as to improve the accuracy, consistency, and predictability of flow through the tube.
Claims18
A method of delivering fluid through a resilient, deformable tube by using a pump mechanism having a pressure pad for supporting said tube, a plurality of finger moving in mutually orthogonal directions, and drive means for actuating said fingers, said method comprising the steps of:
- placing said tube between said pressure pad and said fingers;
- deforming and occluding said tube against said pressure pad under the force of said fingers directed in a first direction;
- and
- restoring the cross-sectional area of said tube under force of said fingers against said pressure pad directed in an orthogonal direction relative to said first direction.
A pump for delivering fluid through a resilient, deformable tube, comprising:
- a pressure pad;
- a first set of fingers that apply force to deform said tube against said pressure pad so as to restore and then reduce said tube's cross-sectional area;
- a second set of fingers that apply force to deform said tube against said pressure pad so as to restore and then reduce said tube's cross-sectional area;
- and
- a motor operatively engaged with said fingers to actuate said fingers such that a particular section of tube is alternatively deformed by said first and second set of fingers.
A pump for delivering fluid through resilient, deformable tube, comprising:
- support means for supporting said tube;
- pumping means for generating force on said tube, such that said pumping means deform said tube against said support means so as to alternatively restore and then reduce the cross-sectional area of said tube in orthogonal directions;
- and
- drive means for actuating said pumping means.
A pump for delivering fluid through a resilient, deformable tube comprising:
- a substantially V-shaped pressure pad;
- a plurality of opposing finger that apply force to deform said tube against said pressure pad as well as urge said tube to restore said tube's cross-sectional area;
- and
- a motor operatively engaged with said fingers to actuate said fingers.
A pump for delivering fluid through a resilient, deformable tube, comprising:
- V-shaped support means for supporting said tube;
- a plurality of fingers operatively engaged with a plurality of cams arranged along a cam shaft for generating force on said tube, such that said plurality of fingers move in different directions to deform said tube against said support means as well as to urge said tube to restore the cross-sectional area of said tube wherein pivot means cause said fingers to move in an arcing motion to apply force on said tube;
- and
- drive means for driving said cam shaft.
Dependencies are inferred from the claim text.