An external defibrillator system is configured with at least two different algorithms for determining the duration of a shock administered to a patient being treated and selects the algorithm based on one or more patient parameters such as, for example, the patient's TTI. The patient's TTI can be measured prior to or while the shock is being administered to the patient. The shock can be, for example, a multiphasic defibrillation or a multiphasic cardioversion shock. The charge voltage of the system's energy storage device can additionally be varied depending on the one or more patient parameters. For example, the system may charge the energy storage device so that the charge voltage is higher or lower than a nominal charge voltage responsive to the patient's TTI is higher or lower compared to an average TTI, respectively.

Semi-autonomous vehicle apparatus which is controlled by a plurality of control sources includes a vehicle which may function autonomously and apparatus for control of the vehicle by either an onboard driver or a driver not situated onboard. The vehicle may also be controlled by an off-vehicle computational device. Hierarchy setting apparatus determines which one or combination of the possible control entities take priority. Persons using the apparatus are identified by either a password or, preferably by providing identification based on a biologic feature. Management of impaired vehicle operators is provided for.

An external defibrillator system is configured with at least two different algorithms for determining the duration of a shock administered to a patient being treated and selects the algorithm based on one or more patient parameters such as, for example, the patient's TTI. The patient's TTI can be measured prior to or while the shock is being administered to the patient. The shock can be, for example, a multiphasic defibrillation or a multiphasic cardioversion shock. The charge voltage of the system's energy storage device can additionally be varied depending on the one or more patient parameters. For example, the system may charge the energy storage device so that the charge voltage is higher or lower than a nominal charge voltage responsive to the patient's TTI is higher or lower compared to an average TTI, respectively.

A dynamically adjustable multiphasic pulse system and method are provided. The dynamically adjustable multiphasic pulse system may be used as pulse system for a defibrillator or cardioverter.

A defibrillator disclosed in the present application including at least: a high voltage capacitor charged through a battery power source; a ladder bridge circuit connected to one end of the high voltage capacitor; a control unit for controlling an on/off operation of switching elements constituting the ladder bridge circuit, wherein the ladder bridge circuit comprises: a first circuit unit and a second circuit unit, one ends of which are connected to one end of the high voltage capacitor and which are connected in parallel to each other; and a third circuit unit connected in series to the other ends of the first circuit unit and the second circuit unit.

A novel therapeutic biphasic or multiphasic pulse waveform and method are provided. The novel therapeutic biphasic or multiphasic pulse waveform may be used in a defibrillator, or in another medical device that delivers therapeutic electrical stimulation pulses to a patient.

Provided are a defibrillation catheter system, a defibrillation power supply device, and a method for controlling the device during observation of intracardiac potential and defibrillation. A defibrillation catheter system 1 includes a catheter 20; a power supply part 6 connected to the catheter 20; an electrocardiograph 40 measuring an intracardiac potential; a first electrode 21 and a second electrode 22 provided on the catheter; and a changeover part 7 connected to the power supply part 6, the changeover part 7 switching between a first mode for measuring the intracardiac potential and a second mode for applying the voltage while the intracardiac potential is measured, wherein the first electrode 21 and the second electrode 22 are connected to the power supply part 6 through the changeover part 7, and the first electrode 21 and the second electrode 22 are connected to the electrocardiograph 40.

A defibrillation device for administering an electrotherapy, such as a dual-sequential defibrillation (DSD) electrotherapy. The defibrillation device can include a defibrillation therapy module, a physiological parameter module and a control module. The defibrillation therapy module can output one or more energies and the physiological parameter module can receive one or more physiological parameters, including electrocardiogram (ECG) data. The control module can analyze the physiological parameters to determine an indication for the administration of an electrotherapy and can determine a DSD electrotherapy. The DSD electrotherapy can be based at least in part on the physiological parameters, the indication for the administration of an electrotherapy or a review of the ECG data.

A dynamically adjustable multiphasic pulse system and method are provided. The dynamically adjustable multiphasic pulse system may be used as pulse system for a defibrillator or cardioverter.

A subcutaneously implantable device includes a housing, a clip attached to a top side of the housing, an electrode, a prong, and a sensor in the prong. The clip is configured to anchor the device to a muscle, a bone, and/or first tissue. The electrode is configured to contact an organ, a nerve, the first tissue, and/or second tissue. The prong is configured to contact the organ, the nerve, and/or the second tissue. The electrode is positioned on the distal end of the prong. The sensor is operable to sense a physiological parameter and includes a temperature sensor, an accelerometer, a pressure sensor, a proximity sensor, an infrared sensor, an optical sensor, or an ultrasonic sensor. Circuitry in the housing is in electrical communication with the sensor and the electrode and is configured to sense electrical signals, deliver electrical stimulation, and/or to deliver a signal to a drug pump.