A61B2505/03

Systems and Methods of Advanced Warning for Clinical Deterioration in Patients

Methods and systems determine risks of deterioration of hospitalized or other monitored or cared-for patients, for example in a treatment facility such as a hospital or under home-health care. In embodiments, a warning or other instruction is issued to medical professionals to alert them that certain patients have moderate or high risk of transfer to a higher level of care or should be monitored more frequently. A medical professional can accept alerts regarding prediction of deterioration, causing a prophylactic transfer or increased monitoring, or a transfer or monitoring order can occur automatically. Data relating to all patients in a unit of a medical facility can be viewed including warnings relating to risk of transfer or deterioration, so that a medical facility can intervene prior to an event such as a cardiac event and/or plan to accommodate patients at higher levels of care or monitoring.

Esophageal pressure clinical decision support system

A novel clinical decision support system (CDS) helps the clinician setup, maintain, and interpret esophageal pressure measurement. The esophageal pressure CDS (Pes CDS) would remind the clinician to do an occlusion test whenever the balloon is first inserted or changes dramatically. It could monitor the occlusion test and provide feedback on the performance and success of the occlusion test. Changes in the patient or monitored data can be tracked by looking for changes in the balloon baseline pressure, changes in the amplitude of the pressure waveform, or changes in the pattern of the Pes waveform. Having information from the ventilator will further increase the ability of the system to determine when Pes is changing unexpectedly.

MONITORING METHOD AND DEVICE

Embodiments of the disclosure provide a monitoring method and device. The method includes: obtaining a physiological signal; performing waveform detection on the physiological signal to determine a target waveform position sequence; performing waveform classification on a physiological signal segment corresponding to the target waveform position sequence, to determine a waveform type of each physiological signal segment; performing anomaly detection on classified physiological signal segments by using at least two preset anomaly detection methods, and generating a target alarm event sequence according to detection results of the at least two anomaly detection methods; and outputting the target alarm event sequence. The method of the embodiments of the disclosure can not only make full use of information about an original physiological signal, but can also take advantage of at least two anomaly detection methods, thereby reducing false alarms and missed alarms and improving alarm accuracy.

METHODS AND DEVICES FOR PROVIDING A PARAMETER THAT INDICATES A HIGHER LIKELIHOOD OF A POSTOPERATIVE DELIRIUM OCCURRING
20210321928 · 2021-10-21 ·

The invention relates to methods and devices for providing parameters that indicate a higher likelihood of a postoperative delirium occurring. According to a first aspect of the invention, the following steps are provided: detecting (401) at least one EEG signal at the head of the patient; determining (402) the intraoperative alpha peak frequency of the EEG signal, wherein the alpha peak frequency in the power spectrum of the EEG signal is the frequency in the alpha band for which the power is greatest; checking (403) whether the determined intraoperative alpha peak frequency is significantly lower than a predefined reference value of the alpha peak frequency; and in the event of this, providing (404) a corresponding information in the form of a parameter that shows a higher likelihood of a postoperative delirium occurring. A second aspect of the invention evaluates the change in power of the alpha band after an anesthetic-inducing drug has been administered. A third aspect of the invention relates to determining the average amplitude of the “direct current” EEG signal and the development of same on initiation of anesthetic-induced loss of consciousness.

NONINVASIVE DETECTION OF CANCER ORIGINATING IN TISSUE OUTSIDE THE LUNG USING EXHALED BREATH

Provided is a non-invasive method of detecting or screening for a cancer in a subject specimen originating in a tissue outside of the lung. The method includes detecting elevated levels of one or more carbonyl-containing volatile organic compounds (VOCs) that are biomarkers for the cancer in exhaled breath from the subject specimen. The method may further include obtaining exhaled breath from the subject specimen; forming adducts of the carbonyl-containing VOCs with a reactive chemical compound; quantifying the adducts of the carbonyl-containing VOCs to establish a subject value for each of the adducts; and comparing each subject value to a threshold healthy specimen value for each of the adducts of the carbonyl-containing VOCs. One or more subject values at quantities greater than threshold healthy specimen values are also useful for screening for the cancer in the subject specimen.

SYSTEM AND METHOD FOR DETECTING AGITATION, DISCOMFORT AND/OR SELF-EXTUBATION DURING INTUBATION
20210316098 · 2021-10-14 ·

A method of monitoring patient use of an endotracheal tube with a ventilator includes receiving in a controller, such as in a stand-alone monitoring device or in the ventilator itself, force data indicative of a biting force of the patient on the endotracheal tube, wherein the force data is based on force signals generated by a force sensor coupled to the endotracheal tube (e.g., either directly or by way of a bite block). The method further includes analyzing the force data in the controller, and determining in the controller from the analyzing of the force data that the force data is indicative of one or more of: (i) at least a predetermined threshold level of agitation or discomfort of the patient, and (ii) a current or likely attempt to self-extubate by the patient.

INTEGRATED FIBER OPTIC SENSOR UMBILICAL CATHETER
20210282680 · 2021-09-16 ·

Embodiments described herein relate to a catheter configured to detect at least one blood gas parameter present in blood in an artery of a patient, including, but not limited to, a catheter wall forming at least one lumen configured for umbilical arterial catheterization, at least one optical fiber incorporated in the catheter wall, wherein the at least one optical fiber is configured to detected the at least one blood gas parameter.

Mean arterial pressure (MAP) derived prediction of future hypotension

There are provided systems and methods for performing mean arterial pressure (MAP) derived prediction of future hypotension. Such a system includes a hardware unit including a hardware processor and a system memory, a hypotension prediction software code stored in the system memory, and a sensory alarm. The hardware processor is configured to execute the hypotension prediction software code to receive MAP data of the living subject, and to transform the MAP data to one or more parameters predictive of a future hypotension event of the living subject. The hardware processor is further configured to execute the hypotension prediction software code to determine a risk score of the living subject corresponding to the probability of the future hypotension event based on at least some of the one or more parameters, and to invoke the sensory alarm if the risk score of the living subject satisfies a predetermined risk criteria.

SYSTEMS AND METHODS FOR CONTROLLING A HEART PUMP TO MINIMIZE MYOCARDIAL OXYGEN CONSUMPTION
20210275794 · 2021-09-09 ·

Various systems, devices, and methods are disclosed herein for treating acute myocardial infarction (AMI) patients using a heart pump controlled in a manner that maximizes mechanical unloading of the left ventricle in the presence of cardiovascular instability and minimizes myocardial oxygen consumption (MVO.sub.2) and consequentially infarct size to prevent the development of subsequent heart failure. In a closed feedback system, the system can include a sensor configured to generate an output used to measure or calculate a left ventricular systolic pressure (LSVP) within the left ventricle of a heart and a controller coupled to a heart pump. The controller can be configured to measure or calculate the LVSP based on the output of the sensor and to control an operation of the heart pump to maximize mechanical unloading of the left ventricle based on the measured or calculated LVSP.

PATIENT VIDEO MONITORING SYSTEMS AND METHODS HAVING DETECTION ALGORITHM RECOVERY FROM CHANGES IN ILLUMINATION
20210258545 · 2021-08-19 ·

Various embodiments concern video patient monitoring with detection zones. Various embodiments can comprise a camera, a user interface, and a computing system. The computing system can be configured to perform various steps based on reception of a frame from the camera, including: calculate a background luminance of the frame; monitor for a luminance change of a zone as compared to one or more previous frames, the luminance change indicative of patient motion in the zone; and compare the background luminance to an aggregate background luminance, the aggregate background luminance based on the plurality of frames. If the background luminance changed by more than a predetermined amount, then the aggregate background luminance can be set to the background luminance, luminance information of the previous frames can be disregarded, and motion detection can be disregarded.