ULTRASOUND APPARATUS AND METHODS TO MONITOR BODILY VESSELS
First Claim
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1. A monitor to monitor an inferior vena cava over multiple respiratory cycles, the device comprising:
- a housing;
an ultrasound system that includes an ultrasonic scan engine located at least partially in the housing and a processing subsystem communicatively coupled to the ultrasonic scan engine, which automatically detects a volume of the inferior vena cava in real time independent from heart rate; and
an output device carried by the housing and communicatively coupled to the processing subsystem to provide indications based at least in part on the detected volume of the inferior vena cava.
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Abstract
An automated 3D ultrasound abdominal vessel monitor is capable of providing automated anatomical and physiological data on the large abdominal vessels, for example the Inferior Vena Cava (IVC). The 3D ultrasound abdominal vessel monitor includes one or more ultrasound transducers built into a housing or frame that in use sits on the upper abdomen, just below the ribcage. A disposable component can serve to secure the 3D ultrasound abdominal vessel monitor to the patient and provide a coupling medium between the 3D ultrasound abdominal vessel monitor and the skin of the patient.
46 Citations
33 Claims
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1. A monitor to monitor an inferior vena cava over multiple respiratory cycles, the device comprising:
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a housing; an ultrasound system that includes an ultrasonic scan engine located at least partially in the housing and a processing subsystem communicatively coupled to the ultrasonic scan engine, which automatically detects a volume of the inferior vena cava in real time independent from heart rate; and an output device carried by the housing and communicatively coupled to the processing subsystem to provide indications based at least in part on the detected volume of the inferior vena cava. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method of automatically calculating indices of a patient for clinical use, comprising:
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positioning a monitoring device on an abdomen of the patient; non-invasively obtaining at least one of a minimum diameter and a maximum diameter of at least one of an aorta or an inferior vena cava of the patient with the monitoring device; and automatically calculating at least one of an CI-IVC ([max IVC−
min IVC]/max IVC) or an IVC/Aorta ratio based on the obtained values.
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27. A method of titrating hemodialysis, comprising:
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positioning a monitoring device on an abdomen of a patient; non-invasively obtaining at least one of a minimum diameter and a maximum diameter of an inferior vena cava with the monitoring device; and titrating hemodialysis based on the obtained at least one of the minimum or the maximum diameter.
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28. A method of monitoring an inferior vena cava, comprising:
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positioning a monitoring device on an abdomen of a patient; and scanning the inferior vena cava continuously to allow a 3D reconstruction of vessel diameter and behavior over time.
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29. A monitor to monitor an inferior vena cava over multiple respiratory cycles, the device comprising:
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a housing; an ultrasound system that includes an ultrasonic scan engine located at least partially in the housing and a processing subsystem communicatively coupled to the ultrasonic scan engine, which automatically detects a volume of the inferior vena cava in real time independent from heart rate; and a display carried by the housing and commuicatively coupled to the processing subsystem to provide visual indications based at least in part on the detected volume of the inferior vena cava. - View Dependent Claims (30, 31, 32, 33)
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Specification