Systems and methods for monitoring patient vasoactivity are discussed. An exemplary patient monitor system includes a sensor circuit configured to generate a heart sound (HS) metric using a HS signal sensed from a patient, and a vasoactivity monitor configured to monitor vasoactivity, such as degree of vasoconstriction or vasodilation, using the HS metric. The system can provide the monitored vasoactivity to a user to alert patient hemodynamic responses to vasoactive drugs, or initiate or adjust a vasoactive therapy according to the vasoactivity. The system may use the monitored vasoactivity to detect a medical condition such as worsening heart failure, pulmonary edema, or syncope.

A system to optimize diaphragmatic breathing is disclosed. The system has a first sensor to measure breathing movement of a user's abdomen and output a signal related to the movement of the user's abdomen, a second sensor to measure breathing movement of the user's chest and output a signal related to the movement of the user's chest; and a control device communicatively coupled with the first sensor and the second sensor. The control device has one or more processors, a memory comprising set of program modules executable by one or more processors. an assessment module for receiving the signal from the first sensor and second sensor and converting the signals to a data input, and for comparing the data input to a predetermined data range representative of proper diaphragmatic breathing for the user and a communication interface for providing feedback based on the assessment modules comparison of the data input and the predetermined range so as to optimize the user's diaphragmatic breathing. A method for optimizing diaphragmatic breathing is also disclosed.

Systems and methods for monitoring physiologic response to Valsalva maneuver (VM) are disclosed. An exemplary patient monitor may detect a natural incidence of a VM session occurred in an ambulatory setting using a heart sound (HS) signal sensed from the patient. The patient monitor may include a physiologic response analyzer to sense patient physiologic response during the detected VM session, and generate a cardiovascular or autonomic function indicator based on the sensed physiologic response to the VM. Using the physiologic response to the VM, the system may detect a target physiologic event using the sensed physiologic response to the VM.

Systems and methods for monitoring physiologic response to Valsalva maneuver (VM) are disclosed. An exemplary patient monitor may detect a natural incidence of a VM session occurred in an ambulatory setting using a heart sound (HS) signal sensed from the patient. The patient monitor may include a physiologic response analyzer to sense patient physiologic response during the detected VM session, and generate a cardiovascular or autonomic function indicator based on the sensed physiologic response to the VM. Using the physiologic response to the VM, the system may detect a target physiologic event using the sensed physiologic response to the VM.

In a magnetic resonance apparatus and operating method therefor, movement compensation during raw data acquisition is accomplished by operating the data acquisition scanner to acquire data from a reference navigator volume at a first point in time, using a simultaneous multi-slice technique with a first acceleration factor and a first number of first slice groups, and to acquire data from a navigator volume at a second point in time, also using a simultaneous multi-slice technique, but with a second acceleration factor and a second number of second slice groups, with the first and second acceleration factors being equal. Movement information is determined from the reference navigator volume and the navigator volume, describing movement of the patient occurring between the first and second points in time. Data acquisition parameters of the scanner are set after the second point in time, dependent on the movement information, for acquiring further magnetic resonance data.

A sensor device for EIT imaging comprises an electrode array for measuring an impedance distribution, with at least one sensor for determining spatial orientation of the electrode array coupled to the electrode array. An EIT imaging instrument is connectable to a sensor for determining spatial orientation of a test person, and optionally in addition connectable to a sensor for gathering information on electrical and/or acoustic activity and/or a sensor for gathering information on dilation. A computing device is connected or integrated for adjusting impedance data based on spatial data, which spatial data describe the spatial orientation of a test subject. An EIT imaging method for measuring an impedance distribution and adjusting said measured impedance distribution comprises measuring impedance distribution by using an impedance distribution measuring device comprising an electrode array, and transforming the measured impedance distribution into EIT images.

A system and method are provided for measuring biometric signals. The system includes a first electrode, a second electrode and a circuit. The first electrode forms at least a portion of a first belt configured to be placed at least partially around a torso of a subject. The second electrode forms at least a portion of a second belt configured to be placed at least partially around the torso. The circuit is configured to measure a voltage between the first electrode and the second electrode. The first and second electrodes are arranged to determine the respiratory effort of the subject. The first or second electrode includes a capacitive electrode with a flexible structure including an insulated conductor. The insulated conductor is insulated such that the conductor does not come in direct contact with skin of the subject when the first or second electrode is placed on the subject.

A wearable vital sign monitor. The wearable vital sign monitor includes a band, where the band secures the wearable vital sign monitor relative to a user. The band includes an interior surface, the interior surface being the surface closest to the skin of the user and an exterior surface, the exterior surface opposite the interior surface. The wearable vital sign monitor also includes a first sensor array. The first sensor array is attached to the band and includes at least two sensors. The wearable vital sign monitor further includes a second sensor array. The second sensor array is attached to the band a fixed distance from the first sensor array and includes at least two sensors. The wearable vital sign monitor additionally includes an electronics module. The electronics module is configured to receive a first signal from the first sensor array, receive a second signal from the second sensor array, and transmit the sensor data to an external device.

The present invention is provided with: a biological signal acquisition means for acquiring a biological signal of a user on a bed; a biological information value calculation means for calculating a biological information value from the acquired biological signal; a presuming means for presuming the status of the user on the basis of the biological information value; and a reporting means for reporting an abnormality when the status of the user is determined to be abnormal by the presuming means. As a result, it is possible to provide the abnormality reporting system and the like that can presume the status with high accuracy on the basis of the measured biological information value of the user on a bed.

A non-contact respiratory monitoring system comprises a magnetic microwire sensor coil that detects magnetic field changes due to motion of a magnet attached to a patient's chest. Field lines emanating from the magnet are parallel to a circumferential loop area of the coil and the coil is positioned at a distance to magnetically couple to the magnet. Impedance in the coil changes when the distance of the magnet to the coil changes due to the patient's breathing. An alternating voltage across coil is modified by the change in impedance. An impedance analyzer coupled to the coil applies the alternating voltage and measures the impedance changes. A computer system controls operation of impedance analyzer, receives respiratory monitoring information based on the coil's impedance changes from the impedance analyzer, and generates a graphical display of the respiratory monitoring information.