Dynamically controllable patient fluid control device
Inventors
EIBL, Joseph • KENNY, Jon-Emile
Assignees
1929803 Ontario Corp (d/b/a Flosonics Medical)
Publication Number
US-10661009-B2
Publication Date
2020-05-26
Expiration Date
2039-03-08
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Abstract
A fluid control device includes an interface to a remote fluid monitoring sensor that detects fluid flow in a patient. In some embodiments, a processor within the fluid delivery device is programmed to adjust the delivery or withdrawal of fluids based on the fluid flow signals provided by the sensor. In some embodiments, the fluid control device can display and/or record fluid flow signals thereby acting as a hemodynamic monitor.
Core Innovation
The disclosed technology provides a patient fluid control device that interfaces with a remote fluid monitoring sensor detecting fluid flow in a patient's vessels. The device incorporates one or more processors programmed to analyze fluid flow measurements and adjust fluid delivery or withdrawal accordingly. This dynamic adjustment is based on signals such as Doppler velocimetry derived from echocardiography interrogations of vessels.
The device is configurable to deliver fluids intravenously or withdraw fluids as in dialysis machines, receiving fluid flow signals from sensors positioned on the patient. The processor can compare fluid flow measurements taken before and after an event intended to alter fluid flow, such as fluid delivery, withdrawal, or a physical intervention like a leg raise or ventilator breath. Based on this comparison, the device can alert clinicians or modify fluid administration automatically.
Claims Coverage
The claims define two independent fluid control device configurations with integrated flow measurement and automated fluid management features.
Processor-controlled fluid pump responsive to remotely received flow signals
A fluid control device comprising a processor programmed to execute instructions, a fluid pump controlled by the processor, and a communication port configured to receive fluid flow signals from a remotely located flow sensor. The device includes memory to store the received fluid flow signals and a display to show these signals. The processor controls the fluid pump based on the received fluid flow signals, which indicate maximum arterial and venous flow rates derived from sampled Doppler waveforms.
Processor programmed to compare flow signals before and after a challenge and control the pump accordingly
A fluid control device comprising a processor, fluid pump, communication port receiving fluid flow signals from a remote sensor, memory, and display. The processor is programmed to compare fluid flow signals received before and after a challenge designed to change blood flow in the patient and to control the fluid pump based on this comparison.
The independent claims cover fluid control devices with processors that receive and analyze Doppler-based fluid flow signals from remote sensors, use these signals to adjust fluid delivery or withdrawal dynamically, and include capabilities to compare flow before and after interventions to optimize fluid management.
Stated Advantages
Provides real-time adjustment of fluid delivery or withdrawal based on actual patient fluid flow measurements, enhancing patient-specific fluid management.
Enables early clinician alerts or automated changes in fluid administration to avoid adverse events related to fluid overload or insufficient fluid delivery.
Functions also as a hemodynamic monitor by displaying and recording fluid flow signals over time, supporting clinical decision-making and patient monitoring.
Documented Applications
Intravenous fluid delivery devices such as programmable IV pumps that adjust fluid infusion based on Doppler-derived arterial and venous flow signals.
Dialysis machines that withdraw or recirculate fluids while adjusting fluid removal rates based on patient fluid flow measurements obtained via remote sensors.
Fluid control devices that perform auto-titration of intravenous fluids, delivery of vasoactive medications, and produce warnings based on fluid and hemodynamic signals.
Use with bedside ultrasound or other medical devices to calibrate and monitor left ventricular stroke volume continuously through Doppler signals.
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