Abstract:
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Bestimmung des zeitlichen Verlaufs der Atemtiefe (T) einer, insbesondere schlafenden, Person. Es werden laufend zu einzelnen Aufnahmezeitpunkten Höhenprofile (H) der Person (1) erstellt. Höhenprofile aus benachbarter Aufnahmezeitpunkte werden zu Segmenten zusammengefasst. Der Bereich, der den Bauch- oder Brustbereich der Person in Abhängigkeit vom jeweiligen Referenzpunkt oder Referenzbereich (21) angibt, wird als Betrachtungsbereich (22) ausgewählt. Für jedes Höhenprofil (H) innerhalb des Segments (S 1 ,..., S q ) wird jeweils gesondert der Mittelwert der Abstände der innerhalb des Betrachtungsbereichs (22) befindlichen Punkte des Höhenprofils (H) zu einem Referenzpunkt oder Referenzgegenstand ermittelt. Für das Segment (S 1 ,..., S q ) wird ein Signal (s i ) ermittelt, dem zum jeweiligen Aufnahmezeitpunkt (t 1 ,..., t p ) des Höhenprofils (H) der für dieses Höhenprofil (H) ermittelte Mittelwert zugeordnet wird. Basierend auf dem ermittelten Signal (s i ), insbesondere basierend auf dessen Signalamplitude, werden ein oder mehrere den zeitlichen Verlauf der Atemtiefe (T) charakterisierende Werte ermittelt
Abstract:
A pneumocardial function monitor (10) includes a carrier (12) configured to be mounted about at least a part of a trunk of a body of a subject. A sensing arrangement (16) is mounted on the carrier (12), the sensing arrangement (16) comprising at least one element for monitoring changes in volume of the part of the subject's body. A signal processing module (24) is in communication with the sensing arrangement (16) for processing signals output from the sensing arrangement (16), the signal processing module (24) having at least one output for outputting a signal related to respiratory function and/or cardiac function.
Abstract:
An apparatus for remote contactless monitoring of sleep apnea, comprising a radar transmitter having a transmitting antenna for radiation of radio frequency signal towards a human body, and a radar receiver for receiving a signal reflected from the human body. The radar receiver comprises a receiving antenna positioned at a predefined distance from the transmitting antenna. The apparatus further comprises an accelerometer adapted to be placed on a human body, a microphone and a signal processor. Respective outputs of the radar receiver, accelerometer and microphone are connected to the input of the signal processor which is configured for extracting and processing apnea-specific physiological parameters of the at least one human body from the inputted signals of the receiver, accelerometer, and microphone.
Abstract:
A method and system for sleep apnea detection are disclosed. The method comprises detecting at least one respiratory signal and utilizing a detection algorithm to automatically detect at least one sleep apnea event from the at least one respiratory signal. The system includes a sensor to determine at least one respiratory signal, a processor coupled to the sensor, and a memory device coupled to the processor, wherein the memory device includes a detection algorithm and an application that, when executed by the processor, causes the processor to utilize the detection algorithm to automatically determine at least one sleep apnea event from the at least one respiratory signal.
Abstract:
A pulmonary function testing (PFT) system includes a PFT device operable to receive a respiratory airflow from a patient through an airflow chamber; a mouthpiece coupled to the PFT device and in airflow communication with the airflow chamber, the mouthpiece including a bacterial filter and associated with a unique identifier and patient data; and a control system communicably coupled with the mouthpiece and the PFT device. The control system is configured to perform operations including interpreting at least one of the unique identifier or the patient data associated with the mouthpiece; and based on the interpretation, adjusting a status of the PFT device to determine a pulmonary function parameter.
Abstract:
The present invention provides, among other things, apparatus and methods of use for treating a subject in need of assistance with breathing. In some embodiments the subject suffers from airflow obstruction. In some embodiments, the subject suffers from chronic obstructive pulmonary disease.
Abstract:
According to embodiments, systems, devices, and methods for ridge selection in scalograms are disclosed. Ridges or ridge components are features within a scalogram which may be computed from a signal such as a physiological (e.g., photoplethysmographic) signal. Ridges may be identified from one or more scalograms of the signal. Parameters characterizing these ridges may be determined.. Based at least in part on these parameters, a ridge density distribution function is determined. A ridge is selected from analyzing this ridge density distribution function. In some embodiments, the selected ridge is used to determine a physiological parameter such as respiration rate.
Abstract:
This invention provides methods and systems for the analysis of data returned from monitoring multiple physiological parameters of a subject, especially from ambulatory multiple parameter monitoring. The methods and systems remove motion artifacts from signals and separate multiple components of single signals due to two or more physiological systems or processes. Each output signal is are preferably free from motion artifacts and reflects primarily functioning of only a single physiological system or process.
Abstract:
The present invention relates to the field of ambulatory and non-invasive monitoring of a plurality of physiological parameters of a monitored individual. The invention includes a physiological monitoring apparatus with an improved monitoring apparel (1) worn by a monitored individual, the apparel (1) having attached sensors for monitoring parameters reflecting pulmonary function, or parameters reflecting cardiac function, or parameters reflecting the function of other organ systems, and the apparel (1) being designed and tailored to be comfortable during the individual's normal daily activities. The sensors preferably include one or more ECG leads (12) and one of more inductive plethysmographic sensors (4,5,6) with conductive loops positioned closely to the individual to preferably monitor at least basic cardiac parameters, basic pulmonary parameters, or both.
Abstract:
The present invention relates to a water floatation garment, and in particular, to such a swimming garment incorporating a fillable bladder and electronics provided to identify emergency situation such as drowning based on sensed data that causing the garment to trigger the fillable bladder to inflate allowing a user to float to surface therein preventing a drowning.