Extravasation and infiltration detection device
AssigneeBattelle Memorial Institute
InventorChad E. Bouton
Life of this patent
Estimating the term…
Abstract
An integrated device of a patch and sensor assembly detects extravasation or infiltration. A transmitter is positioned to direct power into a body portion. A sensor is positioned to receive the power transmitted through the body portion. A substrate is attachable to an outer surface of the body portion and supports the transmitter and the sensor. A signal processor is coupled to the transmitter and the sensor for detecting a change in a fluid level in the body portion from extravasation or infiltration based on the power received by the sensor. A power supply is coupled to the transmitter and the sensor. An indicator is responsive to the signal processor to indicate a detected change in a fluid level in the body portion from extravasation or infiltration.
Claims18
1-14. (canceled)
An apparatus for detecting extravasation, comprising:
- a transmitter positioned to direct power into a body portion;
- a sensor positioned to receive the power transmitted through the body portion;
- a signal processor coupled to said transmitter and said sensor for detecting a change in a fluid level in the body portion from extravasation or infiltration based on the power received by said sensor;
- a power supply coupled to said transmitter and said sensor;
- a substrate attachable to an outer surface of the body portion and supporting said transmitter, said sensor and at least one of said signal processor and said power supply;
- an indicator responsive to the signal processor to indicate a detected change in a fluid level in the body portion from extravasation or infiltration;
- and
- wherein said substrate supports said signal processor, said power supply and said indicator.
(canceled)
A device for detecting extravasation, comprising:
- a transmitter positioned to direct power into a body portion;
- a sensor positioned to receive the power transmitted through the body portion;
- a signal processor coupled to said transmitter and said sensor for detecting a change in a fluid level in the body portion from extravasation or infiltration based on the power received by said sensor;
- a power supply coupled to said transmitter and said sensor;
- an indicator responsive to the signal processor to indicate a detected change in a fluid level in the body portion from extravasation or infiltration;
- a substrate attachable to an outer surface of the body portion and supporting said transmitter, said sensor, said signal processor, said power supply, and said indicator;
- and
- a fluid guiding component positioned on the substrate, the transmitter and sensor positioned relative to the fluid guiding component to detect fluid extravasation or infiltration arising from fluid insertion to a vascular structure.
A method for detecting extravasation or infiltration, comprising:
- inserting a fluid injection conduit into a vascular structure in a body portion;
- activating detection circuitry attached to a substrate to obtain a baseline measurement for a power waveform transmitted into the body portion;
- injecting fluid into the vascular structure via the fluid injection conduit;
- detecting a change in the power waveform by the detection circuitry due to extravasation or infiltration;
- and
- determining a duty cycle for the detection circuitry required to effectively monitor the type of fluid being injected into the body portion and to minimize power consumption.
An apparatus for detecting a change in a body portion, comprising:
- a transmitter positioned to direct power into a body portion;
- a sensor positioned to receive the power transmitted through the body portion;
- a signal processor coupled to said transmitter and said sensor for detecting a change in the body portion based on the power received by said sensor;
- a power supply coupled to said transmitter and said sensor;
- a substrate attachable to the body portion and supporting said transmitter, said sensor, and at least one of said signal processor and said power supply;
- and
- an indicator provided on said substrate responsive to the signal processor to indicate a detected change in the body portion.
Dependencies are inferred from the claim text.