156 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.

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.

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 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.

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 device for compressing the chest of a cardiac arrest victim.

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.

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 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.

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.

The invention discloses an infusion pump system with a blood oxygen and blood pressure monitor function. The system comprises an electronic infusion pump body, wherein the electronic infusion pump body is provided with a blood oxygen detection unit connected with an external blood oxygen sensor, and a blood pressure detection unit connected with an external blood pressure sensor; and the blood oxygen detection unit and the blood pressure detection unit are connected with a wireless data transmission unit which is used for transmitting signals to a system workstation. The system is reasonable in structure, and can be used for monitoring pulse oximetry, patient heart rate and blood pressure in the pain-easing treatment process, so as to timely find hyoxemia and other problems and prompt medical staff to treat as early as possible, so that the occurrence of complications can be reduced, and the occurrence of adverse response (such as sudden cardiac arrest, death) can be reduced.