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US 10,894,638 B2Granted
System, method, and apparatus for monitoring, regulating, or controlling fluid flow
AssigneeDEKA Products Limited Partnership
InventorsBob D. Peret, Brian H. Yoo, Derek G. Kane, Dean Kamen, Colin H. Murphy, John M. Kerwin
Life of this patent
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Abstract
An apparatus, system and method for regulating fluid flow are disclosed. The apparatus includes a flow rate sensor and a valve. The flow rate sensor uses images to estimate flow through a drip chamber and then controls the valve based on the estimated flow rate. The valve comprises a rigid housing disposed around the tube in which fluid flow is being controlled. Increasing the pressure in the housing controls the size of the lumen within the tube by deforming the tube, therefore controlling flow through the tube.
Claims36
A valve comprising:
- a housing configured to surround a tube, the housing defining a hole;
- a filler disposed within the housing, the filler having at least two differing stiffness layers;
- a plunger configured to engage the filler within the housing through the hole to thereby operatively deform the tube within the housing when engaging the filler;
- and
- an actuator operatively coupled to the plunger and configured to actuate the plunger, wherein:
- the housing includes first and second clamshell portions,
- the first clamshell portion is pivotally coupled to the second clamshell portion,
- the first and second clamshell portions have an open position and a closed position, and
- the first clamshell portion defines a first portion of a cavity and the second clamshell portion defines a second portion of the cavity such that the first and second clamshells form a cavity when in the closed position,
- wherein the at least two differing hardness layers of the filler includes four layers,
- wherein the four layers includes first, second, third, and fourth layers, and the first and second layers are within the first portion of the cavity and the third and fourth layers are within the second portion of the cavity.
8 more elements
A system, comprising:
- a coupler adapted to couple to a drip chamber;
- a support member operatively coupled to the coupler;
- an image sensor having a field of view and operatively coupled to the support member, wherein the image sensor is positioned to view the drip chamber within the field of view;
- a valve fluidly coupled to the drip chamber to regulate the flow of fluid through the drip chamber, wherein the valve comprises:
- a housing configured to surround a tube fluidly coupled to the drip chamber, the housing defining a hole;
- a filler disposed within the housing, the filler having at least two differing stiffness layers;
- a plunger configured to engage the filler within the housing through the hole to thereby operatively deform the tube within the housing when engaging the filler;
- and
- an actuator operatively coupled to the plunger and configured to actuate the plunger;
- and
- at least one processor operatively coupled to the image sensor and to the actuator to operatively control the valve, wherein:
- the at least one processor receives image data from the image sensor,
- the at least one processor estimates at least one parameter of liquid within the drip chamber using the image data, and
- the at least one processor actuates the plunger to achieve a target parameter the housing includes first and second clamshell portions,
- the first clamshell portion is pivotally coupled to the second clamshell portion,
- the first and second clamshell portions have an open position and a closed position, and
- the first clamshell portion defines a first portion of a cavity and the second clamshell portion defines a second portion of the cavity such that the first and second clamshells form a cavity when in the closed position,
- wherein the at least two differing hardness layers of the filler includes first, second, third, and fourth layers, and the first and second layers are within the first portion of the cavity and the third and fourth layers are within the second portion of the cavity.
15 more elements
Dependencies are inferred from the claim text.