132 results about "Automatic external defibrillator" patented technology

An AED being powered by 120/240 VAC electrical power alone, being powered by external DC power alone, or any in combination with or without internal-integral battery power, and further an AED access service business method for sales of access to AEDs. The inventive AED, in addition to the defibrillator circuitry comprises a long, tangle free power access cord to be plugged into an external source of AC or DC power and optionally, additional sets of body surface and alternative electrodes positioned in the esophagus and/or heart. The AED has additional advanced capabilities including the ability to deliver rapid sequential shocks through one or more sets of patient electrodes, and the optional mode of shock delivery whereby the shock is delayed while the AED continues to analyze the patients ECG waveform and delays the defibrillation shock or sequence of shocks until the ECG analysis indicates conditions are optimum for successful defibrillation.

An inventive system and method de-passivates a direct current (DC) power source of an Automatic External Defibrillator (AED), such as an AED lithium battery. The system includes a main processor and standby processor. The standby processor monitors the age and usage of the battery. Based on the status of the monitored parameters, the system executes a conditioning discharge to remove a layer of salt crystals on the DC power source.

A health and wellness station having a plurality of emergency response resources incorporated into a single unit is provided to a customer. A method is provided of deploying the health and wellness station and includes the steps of determining components for the health and wellness station, providing a station having the determined components to a customer, and monitoring the components of the station for maintenance and readiness. The station includes an automated external defibrillator (AED) and may have any variety of additional resources, such as a bioterror response kit, a first aid kit, a fire extinguisher, a security system, an oxygen dispenser, and other domestic preparedness items.

An automatic external defibrillator with an intelligent self-test system that ensures device readiness. The self-test system conditionally runs functional tests based on knowledge of device use, time of day, pre-programmed information, operational features and previous events. The condition of the defibrillator is indicated visually, audibly or both based on the results of the self-test performed.

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.

An auditory pulse monitor for noninvasively detecting the amplitude of arterial pulses on a beat-by-beat basis. A light-weight optical sensor including a light source and photodetector is adapted for application to the skin surface of a subject over a tissue bed containing an arterial supply. The photodetector generates an output signal proportional to the amplitude of an arterial pulse, and an electronic circuit connected to the photodetector generates a signal having a frequency proportional to the photodetector output signal level. A speaker or other audio indicator connected to the electronic circuit generates an audible tone indicating the amplitude of the arterial pulse. Another aspect of the invention is an improvement in automated or automatic external defibrillators (AEDs). An AED is disclosed which optically detects arterial pulses after delivering a defibrillation shock and signals the need for CPR if it detects inadequate cardiac pumping following successful defibrillation.

A method is provided for controlling an automatic external defibrillator without stopping CPR (primarily chest compressions). While chest compressions continue to be applied to the victim, the system differentiates between (1) a perfusing rhythm that has the capability of leading to a beating heart without a shock and (2) ventricular fibrillation (VF) which sometimes occurs in the presence of ventricular tachycardia (VT), in which there is no capability for leading to a beating heart without a shock. Defibrillation shocks should be applied only when needed and that is in the presence of VF and sometimes in the presence of VT. Electrocardiographic (ECG or EKG) signals obtained from electrodes applied to the patient's chest are analyzed so that the presence of a QRS signal characteristic of a rhythm which has the potential of supporting a beating heart, or the absence of a QRS signal which indicates ventricular fibrillation, may be detected in the presence of artifacts resulting from chest compressions.

A recognition algorithm of heart rhythm capable of electric shock cardioversion based on standard deviation fo the standardized slope absolute value, is suitable for disease diagnosis and treatment instrument or apparatus, including the steps: S1, preprocessing the electrocardiosignal; S2, recognizing whether the electrocardiosignal is the heart rhythm of cardiac arrest, if so, judging the heart rhythm as the heart rhythm incapable of electric shock cardioversion, otherwise, continuing the follow-up steps S3 and S4; S3, calculating the standard deviation of the standardized slope absolute value; S4, determining whether it pertains to the heart rhythm incapable of electric shock cardioversion or the heart rhythm capable of electric shock cardioversion based on the standard deviation of the standardized slope absolute value. The invention improves the sensitivity and specificity of recognizing the heart rhythm capable of electric shock cardioversion, simplifies the computational complexity of the algorithm, can be applied to the existing ECG guardianship equipment and automatic external defibrillator, and the like instruments requiring body surface electrocardiogram for recognizing the heart rhythm capable of electric shock cardioversion.

A defibrillator locating system and method enables would-be responders to quickly identify defibrillator location for effecting prompt defibrillation. The system may be said to comprise a number of spaced heart-shaped signal-transmitting devices, a signal-receiving/alarm device, and an automatic external defibrillator pair-positioned in visual proximity to the signal-receiving/alarm device. A responder may send a signal from any of the transmitter devices for activating the nearest receiving/alarm device, the latter of which activates an alarm signal for guiding the responder toward the automatic external defibrillator. The alarm signal is preferably auditory and has sufficient intensity whereby the responder may be able to aurally perceive the auditory signal and follow the same to the defibrillator site along an unobstructed pathway. The removably attached defibrillator enables the responder to quickly carry said defibrillator to a cardiac emergency site.

The invention discloses a ventricular fibrillation comprehensive detection method which is based on the complexity. It mainly uses complexity calculation, adopts a number of processing tools, comprehensively detects the ventricular fibrillation combining a number of characteristic numbers, separates various kinds of electrocardiosignal types more effectively, and makes it more suitable for reflecting ventricular fibrillation signals through updating the calculation method of complexity. The sensibility and the specificity are higher and the algorithm amount of calculation is small; it fully meets clinical requirements, resolves the problems of prior patient monitor, implantable defibrillator (ICD), automatic external defibrillator (AED) and other medical equipment, such as sensibility and the specificity are low, anti-interference power is weak and other issues.

An automatic external defibrillator (AED) with a discrete sensing pulse for use in configuring a therapeutic biphasic waveform. The sensing pulse is used to determine a patient-specific parameter (e.g., thoracic impedance) prior to delivery of the therapy waveform. The defibrillator adjusts the therapy waveform, based on the patient-specific parameter, prior to delivery to the patient.

A method for administering a therapeutic shock wherein the therapeutic shock is delivered within a pre-determined pre-shock pause period. In an exemplary embodiment, the method is implement on an AED.

An apparatus for storing one or more electrodes for an automatic external defibrillator includes inter alia a cavity and a lid. The cavity accepts the one or more electrodes and includes at least one vertical surface. A top lateral edge surface of the cavity meets the at least one vertical surface and has a first end with at least one hole. At least one ridge extends horizontally out from the at least vertical surface of the cavity. The lid is detachably attached to the cavity and includes a bottom surface that faces the top lateral edge surface of the cavity, as well as at least one protrusion that extends into the hole in the top lateral edge surface when the lid is attached to the cavity. The hole and the protrusion form a hinge structure at a hinged end of the lid and cavity. A handle is rotatably mounted to the lid opposite the hinged end. The handle includes a camming surface, which engages the ridge to create separation between the lid and the cavity as the handle is rotated from its closed position to its open position. A seal is fixed to the bottom surface and is also removably fixed to the top lateral edge surface of the cavity, thereby forming a sealed enclosure with the cavity in which the electrodes are disposed when the lid is attached to the cavity. As the handle is rotated from its closed position to its open position the seal is simultaneously peeled from the top lateral edge surface of the cavity.

A safety dental chair includes a chair having a back and seat portions, the back portion having front and rear surfaces and upper and lower ends. The safety dental chair includes an automatic external defibrillator and a CPR safety board removably coupled to the chair back portion adjacent its rear surface. A vitals monitor may also be coupled to the chair which includes a pulse oximetry finger clip, a blood pressure cuff, and at least one display. The vitals monitor includes programming for determining pulse oximetry using data received from the pulse oximetry finger clip, for determining blood pressure using data received from the blood pressure cuff, and for actuating the display to present the oximetry and blood pressure. The safety dental chair may include a headrest constructed of memory foam for supporting a patient's neck and the patient's airway open. The chair may be automated for adjusting its position.

The invention provides an automatic external defibrillator, and a display screen brightness adjusting method and apparatus thereof. Illuminance value of an environment is acquired according to a preset frequency, a comparison is made between the illuminance value and a current brightness of a display screen, continuous frequency or time when the illuminance value does not match the current brightness is counted, whether the continuous frequency or the time exceeds a predetermined value is determined, and if so, the current brightness of the display screen is adjusted to match the illuminance value, and the brightness of the display screen is automatically adjusted according to the illuminance of the environment, such that the operation is simplified, the efficiency is improved, at the same time, whether the continuous frequency or the time exceeds a predetermined value when the illuminance value exceeds the predetermined value is calculated as a brightness adjusting condition, and the determination accuracy and stability are improved.

The invention discloses a defibrillation system with a remote positioning function and a distress function. The defibrillation system comprises automatic external defibrillators (AED) and a mobile terminal. A positioning module and a communication module are arranged in each AED. A map module and a management and inquiry module are arranged in the mobile terminal. The positioning modules are used for obtaining position information of the AEDs. The communication modules are used for conveying data. The map module is used for marking the position information of the AEDs on a map. The management and inquiry module is used for managing and inquiring about the position information and device state information of all the AEDs within the area under administration. The AEDs can be managed and maintained conveniently in a unified mode; when the first AED fails, a nearby available AED is called in time. The emergency time is saved for operators, and the emergency time-effect is improved.