164 results about "Sudden cardiac arrest" patented technology

A method is provided for resuscitating a patient from cardiac arrest. This may be done by (a) performing chest compressions for a first period of time at a depth of between about 1.5 to about 3 inches, and (b) ceasing chest compressions for a second period of time. Steps (a) and (b) may be repeated at least two times in order to prevent reperfusion injury after cardiac arrest.

The disclosure provides wearable cardiac arrest detection and alerting device that incorporates a non-invasive sensor based on optical and / or electrical signals transmitted into and received from human tissue containing blood vessels, and that transcutaneously quantifies the wearer's heart rate. The heart-rate quantification enables the detection of the absence of any heart beat by the wearable detection and alerting device indicative of the occurrence of a cardiac arrest, wherein the heart is no longer achieving effective blood circulation in the individual wearing the device. The display on the wearable cardiac arrest detection and alerting device may include the elapsed time since the time of detection of a heart rate that is below a predetermine lower limit value, i.e., the detected occurrence of a cardiac arrest event.

The present invention relates to a device, and software and methodology associated with a portable Automated External Defibrillator (“AED”). The portable AED works with a mobile device and software, and includes two or more cardiac pads, a battery pack, and specialized capacitor. When connected to a patient in cardiac arrest, the AED contacts Emergency Medical Services, and records patient information to be transmitted for evaluation by medical providers. The AED is able to analyze cardiac rhythms, suggests administering one or more shocks to the patient in appropriate cardiac arrhythmia, and guides a user on proper CPR technique, if enabled. The AED software can alert other personnel via a mobile device app.

A notebook, laptop computer, tablet PC (personal computer) or desktop computer having an automated external defibrillator (AED) capability, and methods of utilizing the notebook, laptop computer or tablet PC (personal computer) defibrillator to treat victims of sudden cardiac arrest. A notebook, laptop computer or tablet PC (personal computer) having the technology to enable each to be used as an automated external defibrillator (AED). Methods and apparatuses for implementing the common notebook, laptop computer, tablet PC, common cell phone and the common personal digital assistant (PDA) as an automated external defibrillator (AED).

The invention discloses an intelligent sleep monitoring system with a small contact surface. The intelligent sleep monitoring system consists of a physiological signal acquisition module, a micro control unit (MCU) control module, a power module, a sleeping posture adjustment module and an alarm and rescue module, wherein the physiological signal acquisition module balances the generated force due to myocardial contraction, chest contraction in the respiration process and other muscular movements in the lying process by adopting an air cushion, the body respiration, heart rate, displacement and other physiological signals are converted into electric signals through a pressure sensor, the electric signals are filtered and amplified and are transmitted to the MCU for processing and judging whether the abnormalities of sleep apnea, sudden cardiac arrest, drop and the like occur; when the abnormality is detected, the MCU drives a stepping motor, so that the pillow is deformed, the sleep respiration is adjusted, and corresponding audible and visual alarm is performed aiming at the abnormality. The contact area between the system and a measured body is small, a sensor is not required to be worn, the sleep is not influenced, the cost is low, and the operation, maintenance and management are convenient. The system can be used for a sleep monitoring system for performing daily household monitoring on young and old people.

A notebook, laptop computer, tablet PC (personal computer) or desktop computer having an automated external defibrillator (AED) capability, and methods of utilizing the notebook, laptop computer or tablet PC (personal computer) defibrillator to treat victims of sudden cardiac arrest. A notebook, laptop computer or tablet PC (personal computer) having the technology to enable each to be used as an automated external defibrillator (AED). Methods and apparatuses for implementing the common notebook, laptop computer, tablet PC, common cell phone and the common personal digital assistant (PDA) as an automated external defibrillator (AED).

A positioning device for use in apparatus for treating sudden cardiac arrest in a patient in supine position by providing chest compressions at the lower end of the sternum prevents the apparatus from moving in a caudal direction. The apparatus includes a frame enclosing the patient at a sternal transversal plane and a pneumatic compression / decompression unit mounted on the frame. The device includes a flexible strap having a first end, a second end and a tensioning component disposed between the first and second ends. First and second end portions of the strap include a mechanism for attachment to the apparatus. The flexible strap has a mounted tensioned length sufficient to extend around the patient's neck. At least one of the end portions is releasably attached.

Embodiments of the invention include systems, protective casings for smartphones, and associated methods to enhance use of an automated external defibrillator (AED) device before arrival of emergency medical personnel. A system can include a smartphone and a protective casing abuttingly contacting one or more side portions of the smartphone and retaining the smartphone positioned therein. The smartphone can include a defibrillation control module to control defibrillation of a victim of sudden cardiac arrest. The protective casing can include sensors, capacitors, and extendable electrode pads. The protective casing further can include a check module to determine whether the victim's heart rhythm requires an electrical shock to reestablish a normal heart rhythm, a space module to measure presence and amount of preselected materials relatively near the system, and a shock module to activate the one or more capacitors and generate an electrical current to deliver an electrical shock to the victim's chest.

A wearable cardioverter defibrillator (“WCD”) system may include an impedance detector configured to render an impedance signal of the patient. The WCD system may determine, from the impedance signal, a characteristic of breathing by the patient that can be used as a vital sign. The WCD system may determine, from at least the breathing characteristic, whether or not a shock criterion is met. If the shock criterion is met, the WCD system may control a discharge circuit to discharge a stored electrical charge through the patient. An advantage can be that the breathing characteristic may be used to determine whether or not a patient is experiencing a condition that requires defibrillation therapy, such as sudden cardiac arrest. Even more advantages can be had in discerning the state of the patient when the breathing characteristic is combined with other data, such as from a motion detector.

A non-invasive, wireless, portable device is applicable to the finger in order to reduce the risk of the sudden infant death syndrome and to reduce the risk of apnea, slower heart rate, and heart arrest in all age groups. The device is placed tightly on the distal end of a user's finger. As it is placed on the finger, this device may be inside a fabric cap attached to a glove of different sizes. This device measures blood oxygen saturation and heart rate through a sensor that is preferably a pulse oximeter. When any of these parameters falls below certain user-predetermined thresholds, an electric discharge is delivered to stimulate the user's reaction and a local and / or remote alarm is fired. In certain applications, the device is adequate to make the sleeping user react, and in others to prevent the user from falling asleep.

Embodiments of the invention include systems, protective casings for smartphones, and associated methods to enhance use of an automated external defibrillator (AED) device before arrival of emergency medical personnel. A system can include a smartphone and a protective casing abuttingly contacting one or more side portions of the smartphone and retaining the smartphone positioned therein. The smartphone can include a defibrillation control module to control defibrillation of a victim of sudden cardiac arrest. The protective casing can include sensors, capacitors, and extendable electrode pads. The protective casing further can include a check module to determine whether the victim's heart rhythm requires an electrical shock to reestablish a normal heart rhythm, a space module to measure presence and amount of preselected materials relatively near the system, and a shock module to activate the one or more capacitors and generate an electrical current to deliver an electrical shock to the victim's chest.

A computer-assisted method for quantitative characterization and treatment of ventricular fibrillation includes acquiring a time series of a ventricular fibrillation (VF) signal using a probe from a patient experiencing VF, subtracting the mean from the time series of the VF signal, calculating a cumulative VF signal after the mean is subtracted from the time series of the VF signal, segmenting the cumulative VF signal by a plurality of sampling boxes, calculating the root-mean-square of the cumulative VF signal as a function of the sampling box size , extracting an exponent of the root-mean-square of the cumulative VF signal as a function of the sampling box size, applying electrical defibrillation to the patient if the exponent is below a predetermined value, and applying cardiopulmonary resuscitation (CPR) to the patient if the exponent is above a predetermined value.

A positioning device for use in apparatus for treating sudden cardiac arrest in a patient in supine position by providing chest compressions at the lower end of the sternum prevents the apparatus from moving in a caudal direction. The apparatus comprises a frame enclosing the patient at a sternal transversal plane and a pneumatic compression / decompression means mounted on the frame. The device comprises a flexible strap having a first end, a second end and a tensioning means disposed between the first and second ends. First and second end portions of the strap comprise means for attachment to the apparatus. The flexible strap means has a mounted tensioned length sufficient to extend around the patient's neck. A least one of the end portions is releasably attached.

The invention provides a lifesaving robot and an implementation method of the lifesaving robot, and relates to the technical field of lifesaving. The lifesaving robot comprises a central processing unit and further comprises an information collection unit, an information processing unit, an external chest compression unit and a respiratory resuscitation unit. The information collection unit is used for collecting information of a user. The information processing unit is used for judging whether ardio-pulmonary resuscitation operation needs to be carried out on the user or not. The external chest compression unit is used for recognizing the position where pressure needs to be applied during external chest compression operation, and carrying out cardiac resuscitation compression operation. The respiratory resuscitation unit is used for recognizing the airway opening position of the user and being cooperated with the external chest compression to perform air blowing operation on the airway. The lifesaving robot can scientifically treat and cure the user suffering from sudden cardiac arrest before an ambulance and first-aid personnel arrive, the survival rate of the user before reaching a hospital is greatly improved, and meanwhile the labor capacity of medical workers is reduced.

A method and system for expediting the rescue of victims experiencing sudden cardiac arrest (SCA) when used in conjunction with an automated external defibrillator (AED). The system involves an apparatus that calls for help (i.e. 911), detects SCA and cardiac arrhythmias, locates an AED, guides the rescuer through CPR and connection of the AED. A second apparatus is in the enclosure that contains the AED, sends location information to the other apparatus, triggers audible and visual indicators, and provides information on the victim's location.

Variations in certain genomic sequences useful as genetic markers of Sudden Cardiac Death (“SCD”), or Sudden Cardiac Arrest (“SCA”) risk, are described. Novel genetic markers useful in assessing the risk of SCD, or SCA, and kits containing the same are provided herein. Methods of distinguishing patients having an increased susceptibility to SCD, or SCA, through use of these markers, alone or in combination with other markers, are also provided. Further, methods of assessing the need for an Implantable Cardio Defibrillators (“ICD”) in a patient are taught.

The invention discloses a closed-loop external chest compression system. The system comprises a feedback physiological signal acquiring module, a postprocessing and amplifying module, an intelligent controller, a control interface, an electrical external chest compressor and a chest thickness signal acquiring module, wherein the intelligent controller samples an analogue signal which comes from the postprocessing and amplifying module and a patient chest thickness signal which is sampled by the chest thickness signal acquiring module, compares the analogue signal which reflects actual feedback physiological information with a target physiological signal, and generates the depth and frequency control signal of the external chest compression to be implemented, which can accord with the target physiological signal, by combining a fuzzy control algorithm or a fuzzy proportional integral differential (PID) control algorithm. By continuously monitoring partial pressure of end-tidal carbon dioxide (PETCO2) and mean arterial pressure (MARP) in real time and using the feedback physiological signal, the closed-loop control over the depth and the frequency of the external chest compression is performed on the basis of the fuzzy control algorithm or the fuzzy PID control algorithm. The closed-loop external chest compression system is suitable for pre-hospital emergency treatment and continuous treatment of patients with sudden cardiac arrest.

A notebook, laptop computer or tablet computer having an automated external defibrillator (AED) capability, and methods of utilizing the notebook, laptop computer or tablet computer defibrillator to treat victims of sudden cardiac arrest. Kits and methods for converting, adapting or retrofitting a common notebook, laptop computer and tablet computer to enable each to be used as an AED to treat victims of sudden cardiac arrest. A kit including an adjustable case for receiving, encompassing, adapting and converting a common notebook, laptop computer or tablet computer to enable each to be used as an AED. A kit including a slave automated external defibrillator (AED) that is joined to a common notebook, laptop computer or tablet computer to adapt, convert and enable each to be used as an AED.

This invention provides a stable composition containing T3, serum albumin and water, wherein the T3 has a half-life of at least five days, particularly at neutral pH. This invention further provides a method for emergency treatment of a patient with cardiac arrest and with cardiac electrical standstill to restore effective cardiac function, comprising administering to the patient a therapeutically effective amount of the stable composition.

A wearable heart monitoring system ( 1 ) for monitoring of a cardiac arrhythmia, said system comprising ECG sensors ( 3 ) for providing patient heart data, a conditioning and interpreting circuitry ( 4 ) for processing the heart data, alarm generation means for generating an alarm, said conditioning and interpreting circuitry comprises a real-time evaluator for measuring and analyzing a histogram of a temporal distribution of an interval between successive corresponding characteristic peaks in an ECG spectrum during a plurality of successive heart cycles, the alarm generation means being arranged to generate an alarm based on the analysis of said histogram.

The invention relates to the field of medicinal chemistry, in particular to a photoaffinity labeling marker probe molecule as well as a preparation method and medical application thereof. The probe molecule can be used for selectively marking glycogen phosphorylase in serum, and then the glycogen phosphorylase can be qualitatively and quantitatively detected, so that the probe molecule can be applied to marking detection on a biochemistry marker, namely, glycogen phosphorylase when diseases such as myocardial infarction, angina, arrhythmia, ischemic sudden cardiac arrest and coronary heart disease occur.

The invention is an apparatus for increasing intrathoracic pressure for resuscitating cardiac arrest patients. The apparatus comprises a flexible, substantially inelastic belt wrapped around the patient's chest and attached to a force converter. The force converter converts a downwardly directed force into a chestward resultant, which depresses the sternum, and two belt tightening resultants. The force converter comprises a pair of arm assemblies, each having a pair of spaced arms, which are pivotably mounted to a base. The base is positioned near the patient's sternum and the ends of the belt attach to one end of each arm assembly. The opposite, handle ends of the arm assemblies are depressed toward the chest causing tightening of the belt and compression of the chest cavity.

A monitoring device (7) operates an input block (30) to acquire a pressure signal from a pressure sensor (6a-6c) in an apparatus for extracorporeal blood processing connected to the vascular system of the subject. A processing block (34) repeatedly processes the pressure signal for generation of a time-sequence of parameter values indicative of pressure pulsations originating from heartbeats in the subject, and an evaluation block (35) evaluates the parameter values for detection of cardiac arrest and, if cardiac arrest is detected, generates a dedicated alarm signal. To reduce the risk for false positives without increasing the risk for false negatives, the monitoring device (7) may acquire and process more than one pressure signal, and / or perform an initial viability check before the monitoring is initiated to ensure that pressure pulsations originating from heartbeats are detectable in the pressure signal(s), and / or separate the monitoring of the pressure signal(s) into a detection phase performed during regular operation of a blood pump in the apparatus, and a verification phase performed during a temporary shutdown of the blood pump.

The present invention relates to novel uses of compounds that protect the endothelium, particularly prostacyclin and variants and derivatives thereof in the treatment or prevention of acute traumatic coagulopathy (ATC) and of patients resuscitating from cardiac arrest. The invention also relates to a method of identifying individuals at risk of developing ATC.

The invention provides a device for providing technical guidance on site when performing external chest compression for cardiopulmonary resuscitation on a sudden cardiac arrest patient, which is used for performing external chest compression training for the cardiopulmonary resuscitation and belongs to the technical field of electronics. The device of the invention overcomes the defect of a great difference between the skill training of the cardiopulmonary resuscitation first aid and practical emergency treatment and the serious problem that the universal skill training of the prior cardiopulmonary resuscitation first aid needs enormous amount of capital and long time. The device in the invention is a control box formed by connecting a microgravity sensor and an analogue training body through leads. When the emergency treatment is performed, the device prompts time and frequency, compression signals are acquired by utilizing the sensor and are input to a control center, and then the compression signals are input to a display processor through a displacement operation of the control center and displayed on a luminous tube; and simultaneously, the signals are input to a voice processor and a speaker plays prompting voices. The device is simple and effective in operation and low in cost, has no training period, and can provide the technical guidance for a first-aid site, enables a user to easily understand and greatly improves the effective rate of the emergency treatment.

A method and system for treating an individual experiencing cardiac arrest using an automatic external defibrillator (AED) includes placing a first and a second electrode of the AED in electrical communication with an exterior surface of the individual. A need to apply a high voltage defibrillation signal to the individual is automatically determined. The method also includes automatically causing the AED to apply a medium voltage therapy (MVT) signal through the first and the second electrodes to the individual. The MVT signal is applied to induce a hemodynamic effect in the individual. Alternatively, or additionally, the MVT signal is applied to induce a respiratory effect in the individual. Optionally, the MVT signal is applied before determining the need to apply the defibrillation signal.

The invention discloses a portable audio-visual feedback device and method for cardio-pulmonary resuscitation. The device comprises an insulation covering blanket, a compressor and an audio-visual feedback device unit; the insulation covering blanket is used for insulating current generated when a defibrillator administers an electric shock; a displacement sensor is installed in the compressor, and is used for measuring external chest compression depth, and transmitting data to the audio-visual feedback device unit; the audio-visual feedback device unit includes a control circuit, a storage module and an output module; and the control circuit is used for receiving the data and comparing the compression depth with a standard threshold value in the storage module, and if the compression depth exceeds the set threshold value, a corresponding adjustment command is given by the output module. According to the device and the method, accurate cardio-pulmonary resuscitation guidance is more efficiently given to rescuers participating in sudden cardiac arrest rescue, and thus, sustained cardio-pulmonary resuscitation is guaranteed, the resuscitation success rate is increased, the life safety of the rescuers is guaranteed, the personal privacy of female patients is protected, and corresponding warm keeping measures are provided for patients in low-temperature weather.