Class / Patent application number | Description | Number of patent applications / Date published |
600527000 | Detecting heartbeat by sensing movement of oscillatable body-supporting means | 9 |
20080300499 | Portable Apnea and Cardiac Monitor - This invention relates to non-invasive monitoring devices, in monitoring minute movements made by the body to report the presence or absence of respiration and normal heart rate. The movements being measured are the pulsations made by the normal operation of both the heart and lungs. This is accomplished by converting the body movements into electrical signals with an adapted polymorph-piezoelectric transducer. The electrical signal that is detected is a mixed signal, a signal composed of a lower frequency (breathing contraction) and the higher frequency (heart pulse). The signals are detected by separating the body motions by an adaptive filter that has a break frequency at twice the frequency of the larger body movement signal (breathing contraction). | 12-04-2008 |
20080306396 | High-Sensitivity Sensors for Sensing Various Physiological Phenomena, Particularly Useful in Anti-Snoring Apparatus and Methods - A mechanical vibration sensor adapted to be brought into contact with an object for sensing mechanical vibrations in the object, includes a body of a soft elastomeric material having high transmissivity and low attenuation properties with respect to a preselected type of energy waves; and a pair of transducers mounted, by mounting members having high attenuation properties with respect to the energy waves, in spaced relationship to each other to define a transmission channel between the transducers. Such sensor is particularly useful in a method and apparatus for controlling snoring by a person, by utilizing a stimulus device effective, when sensing snoring, to immediately produce a response in the person tending to interrupt the person's snoring. | 12-11-2008 |
20090240160 | Infant monitoring system - An infant monitoring system according to embodiment(s) of the present disclosure includes a positioning member having a top surface, side surface, and tension strip, and an accelerometer in operative communication with the positioning member. The top surface, which may operatively contact an infant, receives and transmits infant cardiac impulses exerted on the top surface. The side surface, operatively connected to the accelerometer, has an initial angular orientation with respect to the top surface. The side surface receives the transmitted cardiac impulses and resolves a heart rate therefrom. The strip, having a substantially low bending stiffness and substantially high tension stiffness, is operatively connected to the top surface and bends longitudinally in response to infant inhalation forces exerted on the top surface. The bending causes angular deflections of the side surface with respect to the initial angular orientation. The accelerometer detects the angular deflections and resolves therefrom a respiration rate. | 09-24-2009 |
20100249628 | EXTRACTION OF HEART INTER BEAT INTERVAL FROM MULTICHANNEL MEASUREMENTS - A monitoring apparatus comprising a multichannel pressure sensing sensor for measuring a ballistocardiographic signal of a human body is disclosed. The monitoring apparatus also comprises means for selecting a time window for heart inter beat interval including two consecutive heart beats to be estimated, defining a spectrum for the ballistocardiographic signal averaging between at least two measurement channels of the multichannel pressure sensing sensor, a cepstrum from the logarithm of a spectrum, and a heart inter beat interval. The invention relates to a method for defining a heart inter beat interval, where a ballistocardiographic signal of a body is measured with a multichannel pressure sensing sensor, a time window for heart inter beat interval Including two consecutive heart beats to be estimated is selected, a spectrum for the ballistocardiographic signal averaging between at least two measurement channels of the multichannel pressure sensing sensor, a cepstrum from the logarithm of a spectrum, and a heart inter beat interval are defined. | 09-30-2010 |
20110066057 | Electrical Angle Gauge - Methods of using electrodes to obtain physiological location motion data are provided. Embodiments of the methods include producing an electrode from a broadcasting electrode that is proximal to the physiological location of interest and detecting a change in an induced electric potential at a receiving electrode to obtain the motion data of interest. Also provided are systems and components thereof, e.g., programming, for practicing methods according to embodiments of the invention. | 03-17-2011 |
20120065532 | Implantable Medical Devices Employing Electroactive Polymers For Sensing Cardiac Motion and/or Causing Cardiac Compression - Disclosed herein is a system for monitoring a motion of a cardiac tissue. The system includes a motion sensor configured to operably couple to the cardiac tissue. The motion sensor includes an electroactive polymer and is further configured to result in a deflection in the electroactive polymer when the cardiac tissue undergoes the motion. The deflection in the electroactive polymer generates an electrical event. | 03-15-2012 |
20130109989 | METHOD AND APPARATUS FOR OBTAINING AND PROCESSING BALLISTOCARDIOGRAPH DATA | 05-02-2013 |
20140288453 | Heart Rate Detection Apparatus - A heart rate detection apparatus includes a signal acquisition device for acquiring an intra-aural vibration wave signal and converting the intra-aural vibration wave signal into an intra-aural vibration electrical signal; and an arithmetic processing device for processing the intra-aural vibration electrical signal by computing to generate heart rate information. In the prior art, the heart rate detection apparatus cannot accurately and reliably detect the heart rate information due to the weak optical signal detected by a sensor. The heart rate detection apparatus acquires the intra-aural vibration wave signal to obtain the heart rate information, thus enabling the apparatus to accurately and reliably detect heart rate information | 09-25-2014 |
20150112220 | APPARATUS AND METHOD FOR WIRELESS MONITORING USING ULTRA-WIDEBAND FREQUENCIES - A system for and a method of wirelessly monitoring one or more patients can include transmitting ultra-wideband pulses toward the one or more patients, receiving ultra-wideband signals, and sampling the ultra-wideband signals. Sampling the ultra-wideband pulses can be performed with a sample rate that is less than the Nyquist rate. Impulse response can be estimated and/or recovered by exploiting sparsity of the impulse response. | 04-23-2015 |