Indwelling sensor
OwnerSamuel LARSON, David I. POISNER +1inventors
InventorsSamuel LARSON, David I. POISNER, Erik S. LIDDIARD
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Abstract
Described herein are systems, methods, and kits for measuring various physiological parameters from within the body (e.g. from within the vasculature). The systems and methods may include one or more sensors that may be calibrated using valves, ports, and/or a body-worn sensor. The information measured by the indwelling sensors may be wirelessly transmitted to an external monitor.
Claims35
A system for measuring one or more physiological parameters of a patient comprising:
- a measurement unit comprising a housing;
- and
- a sensor line unit releasably coupled to the housing, the sensor line unit comprising an elongate member having one or more sensors along a length thereof configured to measure the one or more physiological parameters from within a blood vessel,
- wherein the sensor line unit is configured to advance the elongate member to position the one or more sensors within the blood vessel, and retract the elongate member to position the one or more sensors outside of the blood vessel.
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A method of measuring one or more physiological parameters of a patient comprising:
- positioning an elongate member of a sensor line unit comprising one or more sensors into a blood vessel;
- coupling the sensor line unit to a measurement unit;
- and
- measuring one or more physiological parameters of the patient,
- wherein the elongate member is advanced to position the one or more sensors within the blood vessel and retracted to position the one or more sensors outside of the blood vessel.
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A system for calibrating a blood pressure sensor comprising:
- a first sensor configured to measure a blood pressure of a patient;
- a wearable sensor comprising a barometer;
- and
- a processor configured to calibrate the measured blood pressure from the first sensor based on data from the wearable sensor.
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Dependencies are inferred from the claim text.