Functional neuromuscular stimulation system
Patent 5776171 Issued on July 7, 1998. Estimated Expiration Date: 
July 7, 2015. 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.
July 7, 2015. 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 ReferencesContactless controllers sensing displacement along two orthogonal directions by the overlap of a magnet and saturable cores Patent #: 4639667 InventorsAssigneeApplicationNo. 474821 filed on 06/07/1995US Classes:607/48, Directly or indirectly stimulating motor muscles607/59, Control signal storage (e.g., programming)607/60, Telemetry or communications circuits607/61, Energy source outside generator body607/62Output controlled by sensor responsive to body or interface conditionExaminersPrimary: Shay, David M.Attorney, Agent or FirmInternational ClassA61F 002/02AbstractAn input command controller (A) provides logic function selection signals and proportional signals. The signals are generated by movement of a ball member (12) and socket member (14) relative to two orthogonal axes. When the joystick is implanted, a transmitter (50) transmits the signals to a patient carried unit (B). The patient carried unit includes an amplitude modulation algorithm such as a look-up table (124), a pulse width modulation algorithm (132), and an interpulse interval modulation algorithm (128). The algorithms derive corresponding stimulus pulse train parameters from the proportional signal which parameters are transmitted to an implanted unit (D). The implanted unit has a power supply (302) that is powered by the carrier frequency of the transmitted signal and stimulation pulse train parameter decoders (314, 316, 318). An output unit (320) assembles pulse trains with the decoded parameters for application to implanted electrodes (E). A laboratory system (C) is periodically connected with the patient carried unit to measure for changes in patient performance and response and reprogram the algorithm accordingly. The laboratory system also performs initial examination, set up, and other functions.Other References
Field of SearchDirectly or indirectly stimulating motor musclesFor walking assistance Control signal storage (e.g., programming) Energy source outside generator body Promoting patient safety or comfort Telemetry or communications circuits Constant level output Signal generated by induction coil circuit Output controlled by sensor responsive to body or interface condition | |
