Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7379775 | Voltage converter for implantable microstimulator using RF-powering coil A combination, voltage converter circuit for use within an implantable device, such as a microstimulator, uses a coil, instead of capacitors, to provide a voltage step up and step down conversion functions. The output voltage is controlled, or adjusted, through duty... | 05/27/2008 |
| 7342508 | Telemetry system and method with variable parameters A programmable telemetry circuit that may be programmed for high bandwidth, low Q; low bandwidth, high Q; or for other parameters. The programmable telemetry circuit may include a first coil; a high impedance path having a first node connected to a first node of the... | 03/11/2008 |
| 7291107 | Insulin bolus recommendation system A system for recommending insulin bolus quantities to an insulin user includes a display unit and memory unit coupled to a control circuit with a user blood glucose target stored in the memory unit. The control circuit is programmed to receive the user's current blo... | 11/06/2007 |
| 7254449 | Systems and methods for providing power to one or more implantable devices Systems and methods for providing a power signal to one or more implantable devices include a number of dynamic range amplifiers each having a multiplicity of output drivers. Each of the output drivers is configured to generate an output signal. The systems and meth... | 08/07/2007 |
| 7254444 | Electrical nerve stimulation device The electrical nerve stimulation unit in accordance with the present invention generally includes a housing, an input panel, a display panel, a controller, a first channel output, a second channel output, and a power system. While the device is generally described i... | 08/07/2007 |
| 7133008 | Drive method and drive apparatus for a display panel This invention provides a drive method and an drive apparatus for a display panel that continuously maintain good image quality when the display panel is used for a long period of time. Based on the image data that are output from the A/D converter, an APL (Average ... | 11/07/2006 |
| 7015769 | System and method for automatic tuning of a magnetic field generator An automatic tuning system for a magnetic field generating tuned circuit includes a processor configured to maintain the resonant frequency of a tuned circuit equal to a reference frequency. The tuned circuit is driven by a power amplifier whose output provides an a... | 03/21/2006 |
| 6919205 | Regulation of type II collagen gene expression using specific and selective electrical and electromagnetic signals Methods and devices for the regulation of type II collagen gene expression in cartilage cells via the application of specific and selective fields generated by specific and selective electric and electromagnetic signals in the treatment of diseased or injured articu... | 07/19/2005 |
| 6658301 | Method and apparatus for conditioning muscles during sleep A method and apparatus for conditioning muscles during sleep. The apparatus includes microminiature electrical stimulators that are injected into the muscles to be exercised and a system of transmission coils located in or on the mattress of a bed. The tr... | 12/02/2003 |
| 6579315 | Artificial heart power supply system An apparatus adapted to be used in connection with an artificial heart assembly having a blood inlet conduit, a blood outlet conduit, and a pump that pumps blood from the blood inlet conduit to the blood outlet conduit. The apparatus includes an internal ... | 06/17/2003 |
| 6101418 | Devices for electrotherapy With these devices a relative H F (high frequency) electric current applicable to the human body is generated by means of an active electrode and a neutral or return electrode, whose electrodes are connected to the transformer of the output stage of the c... | 08/08/2000 |
| 6092531 | Movable magnet transmitter for inducing electrical current in an implanted coil An external power head is energized by a motor causing movement of an element that produces a varying magnetic field, thereby inducing power in an implanted receiver coil within a patient's body. The external power head includes either one or more moving ... | 07/25/2000 |
| 5945762 | Movable magnet transmitter for inducing electrical current in an implanted coil An external power head is energized by a motor causing movement of an element that produces a varying magnetic field, thereby inducing power in an implanted receiver coil within a patient's body. The external power head includes either one or more moving ... | 08/31/1999 |
| 5741316 | Electromagnetic coil configurations for power transmission through tissue Several embodiments of relatively compact transmitter coils and receiver coils having an improved transcutaneous power transfer efficiency. The transmitter coils are preferably applied to the outer surface of a cutaneous layer on a patient's body and held... | 04/21/1998 |
| 5397337 | Method and apparatus for artificially stimulating cough reflex A method and apparatus for eliciting a physiologically significant cough reflex, such as in a quadriplegic patient. The apparatus preferably has at least one pair of electrodes which are positioned about or near the abdominal muscles. The user generates a... | 03/14/1995 |
| 5368544 | Treatment of living bodies A method and apparatus is provided for electrically stimulating magnetotherapy to a living body. The apparatus comprises a permanent magnet and a coil of D-block transition metal surrounding the permanent magnet. A voltage is applied across the coil in a ... | 11/29/1994 |
| 5314457 | Regenerative electrical A regenerative electrical stimulation device comprising a stimulator portion to be surgically implanted in patients and an external controller portion. The implanted stimulator portion provides electrical stimuli of selected parameters to damaged nerve ti... | 05/24/1994 |
| 5314454 | Method and apparatus of artifically stimulating cough reflex A method and apparatus for eliciting a physiologically significant cough reflex, such as in a quadriplegic patient. The apparatus preferably at least one pair of electrodes which are positioned about or near the abdominal muscles. A pushbutton switch is p... | 05/24/1994 |
| 5279292 | Charging system for implantable hearing aids and tinnitus maskers Charging system for implantable hearing aids and tinnitus maskers with a repeatedly rechargeable direct voltage source. The charging system comprises an implantable receiving resonant circuit as the electrical energy source for the direct voltage source t... | 01/18/1994 |
| 5233982 | Method and apparatus for defining a parameter during the output of an electrical pulse to biological tissue A method and apparatus for defining at least one variable parameter of an electrical pulse supplied from an RLC discharge circuit as an output to biological tissue, independently of the amplitude of the pulse, are disclosed wherein a measurement of the ch... | 08/10/1993 |
| 4793325 | Method and device for treating living tissues and/or cells by means of pulsating electromagnetic fields A method for treating living tissues and/or cells consisting essentially of electromagnetically inducing in the tissues and/or cells alternating pulsating electrical signals having a wave form which comprises a positive portion with a duration of between ... | 12/27/1988 |
| 4779593 | Machine for providing electromagnetic pulses for therapeutic purposes A machine for providing electromagnetic pulses of a very high frequency for the therapeutic treatment of a body, which machine is portable and comprises a housing, a control panel, a treatment head holder, and at least two treatment heads which are of a d... | 10/25/1988 |
| 4549547 | Implantable bone growth stimulator Disclosed is an implantable bone growth stimulator which needs no internal battery or large buffer capacitor. A receiving coil in a preferred embodiment, a ferrite core coil, receives RF energy from a transmitter external to the patient. The received RF e... | 10/29/1985 |
| 4088137 | Electron irradiator An electron irradiator for supplying electrons to the human body includes a discharging pole for application to the body and a power transformer connected to a D.C. source via an interrupter, the secondary of the power transformer being connected to the d... | 05/09/1978 |
