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US 2026/0192026 A1Published application
Extracorporeal blood circuit priming solution sampling
AssigneeAnalog Devices International Unlimited Company
InventorsRobert FINNERTY, Claire E LEAHY
Life of this patent
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Abstract
The present disclosure provides a fluidic device for use in an extracorporeal bodily fluid system which comprises a sample flow path along which bodily fluid can flow and a flushing fluid unit which is configured to provide a biocompatible flushing fluid to the sample flow path in an upstream direction.
Claims20
A fluidic device for use in an extracorporeal bodily fluid system comprising a circulatory fluid flow path, the fluidic device comprising:
- a sample flow path comprising an inlet and a sensor assembly interface downstream of the inlet, wherein the inlet is for receiving bodily fluid from the circulatory fluid flow path and the sensor assembly interface is for providing bodily fluid to a sensor assembly;
- a sampling valve provided along the sample flow path, the sampling valve configured to selectively permit fluid to flow along the sample flow path between the inlet and the sensor assembly interface;
- and
- a flushing unit for flushing bodily fluid from at least a part of the sample flow path, the flushing unit comprising:
- a flushing fluid reservoir for receiving a biocompatible flushing fluid, the flushing fluid reservoir fluidically connected to the sample flow path at a first junction downstream of the inlet;
- and
- a flushing fluid delivery unit configured to provide the biocompatible flushing fluid to the sample flow path from the flushing fluid reservoir,
- wherein the fluidic device is configured such that, in use, the flushing fluid delivery unit causes biocompatible flushing fluid to flow upstream from the flushing fluid reservoir to the inlet of the sample flow path.
5 more elements
A method of operating a fluidic device, the method comprising:
- providing a fluidic device comprising:
- a sample flow path comprising an inlet and a sensor assembly interface downstream of the inlet, wherein the inlet is for receiving bodily fluid from the circulatory fluid flow path and the sensor assembly interface is for providing bodily fluid to a sensor assembly;
- a sampling valve provided along the sample flow path, the sampling valve configured to selectively permit fluid to flow along the sample flow path between the inlet and the sensor assembly interface;
- and
- a flushing unit for flushing bodily fluid from at least a part of the sample flow path, the flushing unit comprising:
- a flushing fluid reservoir for receiving a biocompatible flushing fluid, the flushing fluid reservoir fluidically connected to the sample flow path at a first junction downstream of the inlet;
- and
- a flushing fluid delivery unit configured to provide the biocompatible flushing fluid to the sample flow path from the flushing fluid reservoir,
- flowing bodily fluid from the inlet to the sensor assembly interface of the sample flow path;
- and
- flushing the sample flow path to remove bodily fluid by flowing biocompatible flushing fluid to flow upstream from the flushing fluid reservoir to the inlet of the sample flow path.
8 more elements
Dependencies are inferred from the claim text.