Abstract: Devices, systems and methods for controlling a patient's body temperature by endovascular heat exchange.

Abstract: Devices, systems and methods for controlling a patient's body temperature by endovascular heat exchange.

Abstract: A portable system for managing the temperature of a patient during transport includes a heater/cooler configured to be in fluid communication with a heat transfer catheter or a heat transfer surface pad; a pump for circulating heat exchange fluid; an alternating current power supply; and a processor configured to indicate if the alternating current power supply connection to the source of alternating current is interrupted. A rechargeable battery may be configured to provide power to the system when the alternating power supply is not connected to a source of alternating current. If the system is powered on and the connection to the alternating current source is interrupted, the system may automatically switch to receiving power from the rechargeable battery. The processor may alert an operator of the interruption of the connection to the alternating current source and indicate to the operator the amount of energy remaining in the battery.

Abstract: Devices, systems and methods for controlling a patient's body temperature by endovascular heat exchange.

Abstract: Devices, systems and methods for controlling a patient's body temperature by endovascular heat exchange.

Abstract: Devices, systems and methods for controlling a patient's body temperature by endovascular heat exchange.

Abstract: Devices, systems and methods for controlling a patient's body temperature by endovascular heat exchange.

Abstract: A battery system for powering a transportable thermal management system for altering or maintaining a patient's body temperature by endovascular and/or external heat exchange.

Abstract: Devices, systems and methods for controlling a patient's body temperature by endovascular heat exchange.

Abstract: Devices, systems and methods for controlling a patient's body temperature by endovascular heat exchange.

Abstract: A clamp stand for supporting a clamp in an elevated position above a fixture base comprises an extruded support column having upper and lower ends and an interior that is at least in substantial part open. The clamp stand includes longitudinally extending fastener attachment openings, which are attachable by threaded fasteners to a base at the lower end and to a clamp base an upper end. Flat and angled adapter plates are used to attach clamps having bases with different hole patterns. The support column can be mounted to a fixture base by a base bracket. Clamps can be mounted for vertical movement in key slots in the sides of the support column.

Abstract: A circuit for synchronizing a periodic ramp signal utilized in a switching mode power converter to system clock signal. A capacitor is charged through a resistor. When a voltage across the capacitor reaches a predetermined level, the capacitor is discharged and the charging cycle is repeated, thereby generating the periodic ramp signal across the capacitor. A waveform shaping circuit shapes the ramp signal into a rectangular wave signal having a same frequency and phase as the ramp signal. A phase comparator compares a phase of the rectangular wave signal to a phase of the system clock signal for forming a phase error signal. The phase error signal controls a level of current supplied to the timing capacitor by a voltage controlled current source. When the frequency of the system clock signal is higher than the frequency of the ramp signal, the phase comparator causes the voltage controlled current source to supply additional current to the capacitor, increasing the frequency of the ramp signal.