Patent classifications
A61B5/113
Method and apparatus for monitoring of a human or animal subject
A method and apparatus for monitoring a human or animal subject in a room using video imaging of the subject and analysis of the video image to detect and quantify movement of the subject and to derive an estimate of vital signs such as heart rate or breathing rate. The method includes techniques for de-correlating global intensity variations such as sunlight changes, compensating for noise, eliminating areas not of interest in the image, and quickly and automatically finding regions of interest for detecting subject movement and estimating vital signs. A logic machine is used for interpreting detected movement of the subject, and an artificial neural network is used to calculate a confidence measure for the vital signs estimates from signal quality indices. The confidence measure may be used with a normal density filter to output estimates of the vital signs.
INFRARED VISUALIZATION OF CARDIAC AND PULMONARY ACTIVITY
Methods of analyzing cardiac and/or pulmonary activity of an animal involving the use of video under infrared illumination, and systems for monitoring cardiac and/or pulmonary activity of an animal, are described.
Method and apparatus for triggering magnetic resonance recordings with object movements
High-quality magnetic resonance (MR) recordings are triggered with movements of an object, for example the heartbeat. In a method and apparatus for obtaining raw data reconstruction for an MR image, a spin-echo-based sequence is executed that includes applying a static magnetic field and applying a magnetization pulse train. A movement of the object to be imaged is detected and a target contrast for two tissue types of the object is prespecified. The repetition time of the pulse train is set in dependence on the movement of the object to be imaged, and the flip angle is set such that prespecified target contrast for the two tissue types is obtained at the set repetition time.
Method and apparatus for triggering magnetic resonance recordings with object movements
High-quality magnetic resonance (MR) recordings are triggered with movements of an object, for example the heartbeat. In a method and apparatus for obtaining raw data reconstruction for an MR image, a spin-echo-based sequence is executed that includes applying a static magnetic field and applying a magnetization pulse train. A movement of the object to be imaged is detected and a target contrast for two tissue types of the object is prespecified. The repetition time of the pulse train is set in dependence on the movement of the object to be imaged, and the flip angle is set such that prespecified target contrast for the two tissue types is obtained at the set repetition time.
Prevention of reflux induced laryngospasm
Systems and techniques can prevent reflux induced laryngospasm and the pathologies resulting therefrom, including (but not limited to) sudden death in epilepsy (SUDEP) and sudden infant death syndrome (SIDS).
Prevention of reflux induced laryngospasm
Systems and techniques can prevent reflux induced laryngospasm and the pathologies resulting therefrom, including (but not limited to) sudden death in epilepsy (SUDEP) and sudden infant death syndrome (SIDS).
Force feedback arm for an interactive exercise machine
An interactive exercise system includes a mechanical support system and a display module held by the mechanical support system. A force-controlled motor is attached to the mechanical support system and a reel is driven by the force-controlled motor. The interactive exercise system also has a handle graspable by a user and includes a cord extending between the reel and the handle. Force applied through the force-controlled motor is based at least in part on detected user force input.
METHOD FOR MONITORING A RECUMBENT PATIENT TO OBTAIN INFORMATION ON A BODY POSITION OF THE PATIENT
A method for monitoring a recumbent patient to obtain information on a body position of the patient comprises the steps of emitting electromagnetic waves by a sender (11) arranged in a distance from the patient, receiving electromagnetic waves reflected by the patient by a receiver (12, 13, 14) arranged in a distance from the patient, determining a movement activity level from an amplitude and/or phase of the received electromagnetic waves, classifying the activity level into at least one high activity level class and into at least one low activity level class and analyzing the amplitude and/or phase of the received electromagnetic waves relating to an activity level classified in the at least one low activity level class to obtain the information on the body position of the patient.
METHOD FOR MONITORING A RECUMBENT PATIENT TO OBTAIN INFORMATION ON A BODY POSITION OF THE PATIENT
A method for monitoring a recumbent patient to obtain information on a body position of the patient comprises the steps of emitting electromagnetic waves by a sender (11) arranged in a distance from the patient, receiving electromagnetic waves reflected by the patient by a receiver (12, 13, 14) arranged in a distance from the patient, determining a movement activity level from an amplitude and/or phase of the received electromagnetic waves, classifying the activity level into at least one high activity level class and into at least one low activity level class and analyzing the amplitude and/or phase of the received electromagnetic waves relating to an activity level classified in the at least one low activity level class to obtain the information on the body position of the patient.
Generating a breathing alert
For generating a breathing alert is disclosed, a method receives a video stream of a subject. The method further estimates a breathing signal from the video stream. The method determines one of a large-scale motion and/or a breathing event of the subject based on the breathing signal. The method generates an alert if both no breathing event is identified and no large-scale motion of the subject is identified within an event time interval.