Local application microprocessor based nerve and muscle stimulator
October 22, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3565080 Apparatus for generating applied electrical stimuli signals Transcutaneous pain control and/or muscle stimulating apparatus Bioelectrically controlled electric stimulator of human muscles Apparatus for transmission of information by electrocutaneous stimulus Miniaturized transcutaneous nerve stimulating device Electronic pain control with scanned output parameters Transcutaneous pain control and/or muscle stimulating apparatus Method and randomized electrical stimulation system for pain relief Stimulation device InventorAssigneeApplicationNo. 139872 filed on 10/22/1993US Classes:607/62, Output controlled by sensor responsive to body or interface condition607/46, Electrical treatment of pain607/59, Control signal storage (e.g., programming)607/63Promoting patient safety or comfortExaminersPrimary: Kamm, William E.Attorney, Agent or FirmForeign Patent References
International ClassA61N 001/36AbstractA transcutaneous electroneural stimulation (TENS) device employing microprocessor control of carrier pulse frequency, modulation pulse frequency, intensity, and frequency/amplitude modulation factors has been developed. The microprocessor monitors battery status and keypad-entered commands that select the various TENS modalities, and generates the driver signals to produce the output waveform provided to a utilization device via a transformer arrangement. The microprocessor is programmed to calculate all stimulation parameters which are stored in nonvolatile memory to provide concise and predictable programmed functions which can be updated as required. By selecting a program, the system may be programmed to relieve pain or reduce edema in the application area. Thus, a variety of therapeutic applications may be realized. The output pulse train employs a unique pulse modulation scheme which matches the carrier frequency to the electrode-tissue load for location specific applications. By pulse modulating the high frequency carrier and matching the carrier frequency to the electrode-tissue load, a more efficient energy transfer is realized. This matching significantly reduces the required amplitude of the electrode voltage pulse and reduces the overall power requirements for the system. In addition to enhanced power efficiency, the unpleasant burning sensation associated with most TENS stimulation units is virtually eliminated. The unit can be integrated into a hermetically sealed miniaturized composite package which allows the unit to be worn in a non-interfering manner at the treatment location. | |
