145 results about "Physiologic measurement" patented technology

A drug administration controller has a sensor that generates a sensor signal to a physiological measurement device, which measures a physiological parameter in response. A control output responsive to the physiological parameter or a metric derived from the physiological parameter causes a drug administration device to affect the treatment of a person, such as by initiating, pausing, halting or adjusting the dosage of drugs administered to the person.

In one embodiment, a non-invasive physiological sensor assembly is capable of attachment to a tissue site of the ear comprising of cartilaginous structures of the ear, providing low latency of physiological measurements as well as a secure attachment.

The present invention provides a hyperspectral imaging system which demonstrates changes in tissue oxygen delivery, extraction and saturation during shock and resuscitation including an imaging apparatus for performing real-time or near real-time assessment and monitoring of shock, including hemorrhagic, hypovolemic, cardiogenic, neurogenic, septic or burn shock. The information provided by the hyperspectral measurement can deliver physiologic measurements that support early detection of shock and also provide information about likely outcomes.

Sensors and monitors for a physiological monitoring system having capability to indicate an accuracy of an estimated physiological condition. The sensor senses at least one physiological characteristic of a patient and is connectable to a monitor that estimates the physiological condition from signals detected by the sensor. The sensor includes a detector for detecting the signals from the patient which are indicative of the physiological characteristic. The sensor is associated with a memory configured to store data that defines at least one sensor signal specification boundary for the detected signals. The boundary is indicative of a quality of the signals and an accuracy of the physiological characteristic estimated from the signals by the monitor. The sensor further includes means for providing access to the memory to allow transmission of the data that defines the at least one sensor boundary to the monitor.

A system for determining a reference baseline of regularly retrieved patient information for automated remote patient care is presented. A medical device having a sensor for monitoring at least one physiological measure of an individual patient regularly records and stores measures sets relating to patient information during an initial time period. A database collects one or more patient care records by organizing one or more patient care records and storing the collected measures set into such a patient care record for the individual patient. A server receives the collected device measures set from the medical device, processes the collected device measures set into a set of reference measures representative of at least one of measured or derived patient information, and stores the reference measures set into the patient care record as data in a reference baseline indicating an initial patient status.

A method for combining measurements from two or more independent measurement channels, particularly physiological measurements such as heart rate. Independent measurements of heart rate, for instance by ECG and pulse oximetry, can be combined to derive an improved measurement eliminating artefacts on one channel. A model of the process generating the physiological parameter, e.g., the heart rate, is constructed and is run independently for each channel to generate predictions of the parameter. The measured values are compared with the predicted values and the differences are used as an indication of the confidence in the measurement. The measurements from the two channels are ombined using weights calculated from the respective differences.

One embodiment of the present invention relates to a system for deriving physiologic measurement values that are relative to ambient conditions. In one embodiment, the system comprises an implantable medical device (“IMD”) and an external monitor. The IMD is adapted to determine an absolute physiologic parameter value within a patient's body, and communicate the absolute physiologic parameter value outside the patient's body, for example, to the external monitor. Further, the external monitor is adapted to receive the absolute physiologic parameter from the IMD and obtain an ambient condition value outside the body that can affect the absolute physiologic parameter value. The external monitor then calculates a relative physiologic parameter value from the ambient condition value and the absolute physiologic parameter value.

One embodiment of the present invention relates to a system for deriving physiologic measurement values that are relative to ambient conditions. In one embodiment, the system comprises an implantable medical device (“IMD”), which includes a main body; and a remote sensor system operable to measure an absolute physiologic parameter value within a patient's body. The system further comprises an external device, which can be operable to obtain an ambient condition value outside the patient's body that can affect the absolute physiologic parameter value, and communicate the ambient condition value to the remote sensor system. In accordance with one embodiment, the remote sensor system then can be further operable to receive the ambient condition value and calculate a relative physiologic parameter value from the ambient condition value and the absolute physiologic parameter value.

One embodiment of the present invention relates to a system for deriving physiologic measurement values that are relative to ambient conditions. In one embodiment, the system comprises an implantable medical device (“IMD”) and an external computing device. The IMD is operable to determine an absolute physiologic parameter value within a patient's body, and communicate the absolute physiologic parameter value outside the patient's body, for example, to the external computing device. Further, the external computing device is operable to receive the absolute physiologic parameter from the IMD and obtain an ambient condition value outside the body that can affect the absolute physiologic parameter value. The external computing device then calculates a relative physiologic parameter value from the ambient condition value and the absolute physiologic parameter value.

A combined vascular access port and physiologic parameter monitoring device. The vascular access port and the monitoring device may be connected by a cooperative geometry. The vascular access port and the monitoring device may be implanted at the same time and in the same anatomical location (e.g., subcutaneous pocket). The monitoring device may include a telemetry unit that transmits physiological measurement data to a local data collection system (e.g., carried by the patient or located in the patient's home), which may re-transmit the data to a remote data collection system (e.g., located at a physician's office or clinic) via a suitable communication link.

One embodiment of the present invention relates to a system for deriving physiologic measurement values that are relative to ambient conditions. In one embodiment, the system comprises an implantable medical device (“IMD”), an external computing device, and a backend computing system. The IMD determines an absolute physiologic parameter value within a patient's body, and communicates the absolute physiologic parameter value outside the patient's body, for example, to the external computing device. Further, the external computing device receives the absolute physiologic parameter from the IMD and communicates it to the backend computing system. The backend computing system receives the absolute physiologic parameter value and obtains an ambient condition value outside the body that can affect the absolute physiologic parameter value. The backend computing system then calculates a relative physiologic parameter value from the ambient condition value and the absolute physiologic parameter value, and in some embodiments, stores the relative physiologic parameter value in a storage location, such as a memory or database.

A medical monitor includes a lanyard and an electronic package supported in the manner of a pendant. The lanyard includes integral electrodes or other sensors for making physiological measurements, auxiliary components and connectors for electrically connecting the electrodes or sensors to the electronic package. The physiological measurements may be stored in the monitor for later readout, or may be transmitted, before or after processing, to a remote location.

An apparatus and method for obtaining one or more physiological measurements associated with a user using ear-located sensors is disclosed herein. One or more of different types of sensors are configured to engage a user's ear. In some cases, the sensors will be included in one or both of a pair of earphones to capture physiological parameters. A portable device is configured to be in communication with the earphones to receive physiological parameters from the sensor(s) therein, and potentially to provide control signals to the sensors or other components in the earphones. The portable device determines physiological measurements corresponding to the received physiological parameters. The portable device is also configured to provide a user interface to interact with the user regarding the physiological measurements.

A personal emergency response system employs a structured terminology of body activities. Measurements of primary body activities using accelerometers, heart-bit monitors, etc. are converted to secondary and tertiary level body activities such as walk and fall, further sequenced and combined to determine a personal condition such as walk, stumble and fall, and to identify sequences of such conditions. The structured terminology enables a language supporting a functional description of body activities associated with physical and physiological measurements and enables a machine to understand physical activities.

Embodiments include a method and system for providing data to a user of a wearable sensor platform. The method may be performed by a least one software component executing on at least one processor. The method includes capturing data for the user using at least one sensor in the wearable sensor platform. The data includes physiological data and artifact data. The physiological data includes noise data therein. A confidence indicator for the data is determined based on at least one of the physiological data and the artifact data. A physiological data signal corresponding to the physiological data and the confidence indicator is provided to the user on the wearable device platform.

A simplified physiological measurement device utilizes a general port to receive power from an external electronic device and to transmit the signals obtained from physiological measurements to the external electronic device for calculation and display. Thereby, the mechanisms and electronic elements of the physiological measurement device can be obviously simplified, and the operational convenience can also be greatly promoted.

In one embodiment, a method is provided for classifying cognitive activity in an individual. In the method, a candidate time interval is identified from a first type of physiological data within which cognitive processing is expected to occur for the individual. In addition, a second type of physiological data is obtained that comprises data representative of a cognitive state of the individual. Further, the data representative of a cognitive state of the individual is extracted from the second type of physiological data based on the identified candidate time interval.

An in-the-ear (ITE) physiological measurement device (2) includes a structure (4) formed to be easily inserted into ear canals of various shapes and sizes. An inflatable balloon (6) surrounds the end of the structure (4) to be placed in the ear. Optionally, a mushroom-shaped tip (22) is attached to the end of the structure (4) and carries a plurality of sensors (8). Inflation of the balloon (6) radially expands the tip (22) to place the sensor (8) adjacent to the vascular tissue in the ear canal. Once in place, one or more sensors (8) sense physiological signals from vascular tissue and bone structures.

Automated medical diagnostic interpretation and report generation for a non-invasive medical diagnostic test, such as an echo cardiogram, is provided. Various dimension measurements and physiological measurements from an echo cardiogram machine are transferred automatically to a computer over an echo cardiogram machine interface. The dimensions and physiological measurements are automatically interpreted by an intelligent interpretation engine running on a computer, generating various machine evaluations. The physician can approve the machine evaluations, overrule them, or make appropriate adjustments. Upon completion of the physician's review, the physician approved interpretations become diagnostic conclusions, and the report containing the results of the physician's review is generated by the report generation engine.