Peristaltic Pump with Bi-Directional Pressure Sensor
First Claim
Patent Images
1. Fluid delivery apparatus, comprising:
- a peristaltic pump having an upstream end for receiving a fluid from a fluid source and a downstream end for delivering the fluid to a fluid target; and
a single pressure sensor, which is configured to measure, in alternation, an input pressure of the pump at the upstream end and an output pressure of the pump at the downstream end.
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Abstract
Fluid delivery apparatus includes a peristaltic pump having an upstream end for receiving a fluid from a fluid source and a downstream end for delivering the fluid to a fluid target. A single pressure sensor is configured to measure, in alternation, an input pressure of the pump at the upstream end and an output pressure of the pump at the downstream end.
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Citations
26 Claims
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1. Fluid delivery apparatus, comprising:
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a peristaltic pump having an upstream end for receiving a fluid from a fluid source and a downstream end for delivering the fluid to a fluid target; and a single pressure sensor, which is configured to measure, in alternation, an input pressure of the pump at the upstream end and an output pressure of the pump at the downstream end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. Fluid delivery apparatus, comprising:
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a flexible conduit, having upstream and downstream ends; a plurality of fingers, which are disposed at respective locations along the conduit and are configured to alternately compress and release the conduit at the locations; a pump mechanism, which is coupled to move the fingers between respective compressed and released positions in a cyclical pattern so as to drive a fluid through the conduit by a peristaltic action; and a sensor coupled to one of the fingers so as to measure a pressure of the fluid in the conduit. - View Dependent Claims (13, 14, 15)
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16. A method for fluid delivery, comprising:
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coupling a peristaltic pump having an upstream end and a downstream end to receive a fluid at the upstream end from a fluid source and to deliver the fluid to a patient from the downstream end; and measuring an input pressure of the pump at the upstream end and an output pressure of the pump at the downstream end in alternation using a single pressure sensor. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification