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| Number | Title | Issue Date |
| 7276025 | Electrical adapter for medical diagnostic instruments using LEDs as illumination sources An adapter for permitting a medical diagnostic instrument having an illumination source including at least one LED (light emitting diode) to be used with a power supply normally configured for use with a diagnostic instrument having at least one incandescent lamp as... | 10/02/2007 |
| 7242597 | Rectifier circuit and vision regeneration assisting apparatus having the same A rectifier circuit for converting an AC voltage to a DC voltage has a first MOS transistor having a source connected to a first input terminal of an AC power supply, and also having a drain connected to an output terminal thereof, a first parasitic diode formed bet... | 07/10/2007 |
| 7155291 | Methods and apparatus for providing a sufficiently stable power to a load in an energy transfer system Methods and apparatus for providing a sufficiently stable power to a load in an energy transfer system that transfers energy from one side of a physical boundary to another side of the boundary. In one example, a power supply and a primary winding are located on a f... | 12/26/2006 |
| 6959217 | Multi-mode crystal oscillator system selectively configurable to minimize power consumption or noise generation The present invention is directed to a multi-mode crystal oscillator system selectively configurable to minimize power consumption or noise generation. Such a system is particularly applicable to the communication system of an implantable device, e.g., the microstim... | 10/25/2005 |
| 6471668 | Surgical/medical irrigator with adjustable nozzle An irrigator (20) useful for surgical and medical procedures. The irrigator includes a handpiece (22) to which a tip assembly (30) is attached. The tip assembly includes a discharge tube (32) through which irrigating fluid is discharged. A spray head (422... | 10/29/2002 |
| 6352527 | Surgical/medical irrigator with rechargeable battery pack An irrigator (20) useful for surgical and medical procedures. The irrigator includes a handpiece (22) to which a tip assembly (30) is attached. The handpiece (22) includes a drain tube (50) that extends through the body of the handpiece and outside of the... | 03/05/2002 |
| 5859527 | Electrical signal supply with separate voltage and current control for an electrical load An electrical signal supply apparatus independently controls and regulates voltage and current in supplying microampere currents to skin tissue of patients. The apparatus enables operators to select a desired voltage level independent of the requirement t... | 01/12/1999 |
| 5689214 | Electromagnetic wave generator for influencing biomagnetic fields An electromagnetic wave generator for influencing different corporal states in a biological organism includes an oscillator circuit coupled to a microcontroller and an antenna coupled to the microcontroller through which waves at a given frequency are tra... | 11/18/1997 |
| 5671132 | High voltage bipolar CT scanner power supply A bipolar high-voltage switching power supply system includes an input and a first output module for generating power at a first voltage and power rating. In another configuration, a second output module is combined with the first to generate power at dou... | 09/23/1997 |
| 5633578 | Electrosurgical generator adaptors Adaptors are provided for use with electrosurgical bipolar instruments and standard commercially available electrosurgical generators that reduce coagulum buildup and sticking on electrosurgical instruments. A first type of adaptor converts a high voltage... | 05/27/1997 |
| 5610509 | Method for optimizing power supply voltage to high voltage transmitters A transmit power supply optimization method optimizes power supply voltage to high voltage transmitters of an ultrasound imaging apparatus for each operating mode of the apparatus. The method comprises the steps of linking the operating mode of the appara... | 03/11/1997 |
| 5559422 | Wall transformer A wall mounted power supply for a remote instrument handle has a novel self compensating voltage regulating circuit that remains in precise calibration despite variable voltage drops in the load, cabling, and control switches. Power output is enabled by a... | 09/24/1996 |
| 5504420 | Current-generating apparatus for therapeutic treatments in the field of biophysics and physiology The invention concerns a current-generating apparatus for supplying at least two probes designed to be applied to a part of the human body for the purpose of therapeutic treatment in the field of biophysics and physiology. This apparatus comprises a self-... | 04/02/1996 |
| 5400267 | Local in-device memory feature for electrically powered medical equipment A non-volatile memory disposed within electrically powered medical equipment is described. The non-volatile memory may be preprogrammed to store utilization limits and parametric data for the equipment. An external control module may be programmed to stor... | 03/21/1995 |
| 4961047 | Electrical power control apparatus and methods Electrosurgery apparatus includes an r.f. power amplifier with an output to a patient electrode. The amplifier is controlled by the voltage of input signals from a control unit which receives a sample of the voltage and current of the output signal. The v... | 10/02/1990 |
| 4592018 | Removable RAM package for ambulatory medical monitor A removable package for use primarily in an ambulatory monitoring device, such as a medical monitor includes a RAM and a power supply. The RAM package is connected to an external device via an edge connector which includes interlock means for sensing when... | 05/27/1986 |
| 4498475 | Electrosurgical unit An electrosurgical unit for producing a modulated oscillating signal for coagulation procedures and an unmodulated oscillating signal for cutting procedures. The unit includes a four arm bridge rectifier interconnected directly to the line voltage. A firs... | 02/12/1985 |
| 4121590 | System for monitoring integrity of a patient return circuit A monitor for a patient return circuit of a radiofrequency electrosurgical device in which an interrogation or measurement circuit is powered by a photovoltaic cell. Characteristics of the photovoltaic cell can limit the interrogation or measurement curre... | 10/24/1978 |
| 4015609 | Circuit for low power-low energy source A DC to DC converter with voltage regulator for converting a low level voltage source to a higher level DC, comprising an oscillator circuit with a low resistance starting current path, a rectifier circuit for rectifying the oscillator output, and a regul... | 04/05/1977 |
| 3986495 | Optically excited diode current limiter An optically excited diode current limiter, when placed in series with a lead having an electrode attached to a patient such as an EKG or EEG lead, conducts physiological signals picked up by the electrode and protects the patient from electrical shock by... | 10/19/1976 |
| 3983415 | Semiconductor switching circuit An electronic thermometer is described that is useful for obtaining oral or rectal body temperatures. The thermometer includes a casing on which is mounted a scale for visually indicating temperature readings. A plug-in connector is used to connect an ele... | 09/28/1976 |
| 3963030 | Signal generating device and method for producing coagulation electrosurgical current A signal generating device and method for producing an RF output signal regulated in power and of decaying amplitude suitable for use in an electrosurgical generator for surgical coagulation purposes. The device includes a circuit tuned to a predetermined... | 06/15/1976 |
| 3952748 | Electrosurgical system providing a fulguration current An electrosurgical system, having a solid state generator for providing a cut mode electrosurgical current waveform of RF electric energy having a first voltage amplitude to an active electrode terminal, is adapted by the addition of an apparatus for alte... | 04/27/1976 |
