Abstract: A method of analysis of medical signals is presented which provides useful clinical information concerning the state of the myocardium during cardiopulmonary resuscitation (CPR). The analysis during CPR can be used to (i) identify the underlying rhythm, (ii) provide a measure of the efficacy of CPR, and (iii) to predict the outcome from a defibrillation shock.
Type:
Grant
Filed:
February 10, 2006
Date of Patent:
March 17, 2015
Assignee:
Cardiodigital Limited
Inventors:
Paul Stanley Addison, James Nicholas Watson
Abstract: A sensor assembly for monitoring physiological characteristics interfaces to a subject's ear. The sensor assembly has a projection that projects into the subject's concha. The projection may have a notch to accommodate the subject's anti-tragus. A clip connected to the projection holds a sensor against the subject's lobule. The sensor may comprise a pulse-oximetry-type sensor.
Type:
Grant
Filed:
July 28, 2004
Date of Patent:
August 28, 2007
Assignee:
Cardiodigital Limited
Inventors:
Yunquan Chen, Luya Li, Rakesh Kumar Sethi, Ming Sun, Christopher Grant Denny, Scott Howard Phillips
Abstract: A detachable sensor assembly for use in monitoring a physiological parameter of a subject includes an information containing circuit and a timer. The sensor assembly stores time varying information in the information containing circuit. The information may include cumulative use times for the detachable sensor assembly and/or for components in the detachable sensor assembly.
Abstract: A method of analysis of medical signals which uses wavelet transform analysis to decompose cardiac signals. Apparatus for carrying out the method, and cardiac apparatus adapted to employ the method are also described.
Type:
Grant
Filed:
May 2, 2000
Date of Patent:
January 30, 2007
Assignee:
Cardiodigital Limited
Inventors:
Paul Stanley Addison, James Nicholas Watson
Abstract: A physiological measurement system is disclosed which can take a pulse oximetry signal such as a photoplethysmogram from a patient and then analyse the signal to measure physiological parameters including respiration, pulse, oxygen saturation and movement The system can be used as a general monitor, or more specifically, to for infant or adult apnea, and to guard against sudden infant death syndrome.
Abstract: A pulse oximetry signal, suitably a photoplethysmogram (PPG), is decomposed by wavelet transform techniques, and the decomposed signal analysed to provide selected physiological data. The signal may be processed to remove noise, artefacts, or transient features. Information on respiration may also be recovered.
Type:
Grant
Filed:
June 21, 2002
Date of Patent:
April 25, 2006
Assignee:
Cardiodigital Limited
Inventors:
Paul Stanley Addison, James Nicholas Watson
© 2024 Justia
