Functional neuromusclar stimulation system
First Claim
1. An implantable electrical stimulus system including:
- a plurality of implantable electrodes;
a receiving antenna for receiving radio frequency signals from an external antenna indicative of characteristics of stimulus pulse trains to be applied to the plurality of electrodes;
a metal capsule defining a hermetically sealed chamber, a first recessed area, and a second recessed area, each recessed area defined by said capsule to include at least one aperture formed therethrough in communication with the sealed chamber, the antenna being mechanically interconnected with the capsule;
electrical circuitry mounted within the capsule chamber in electrical communication with the antenna through said at least one aperture of said first recessed area for converting received radio frequency signals into a stimulus pulse train for each of a plurality of electrodes; and
,a plurality of electrical leads, each electrical lead being electrically connected at a first end through said at least one aperture of said second recess with the electrical circuitry and at a second end with one of said plurality of implantable electrodes, each of said plurality of electrical leads mechanically interconnected with the metal capsule, whereby said first and second recesses protect the mechanical interconnection of said antenna and the plurality of electrical leads to the capsule, respectively.
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Accused Products
Abstract
An 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.
108 Citations
6 Claims
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1. An implantable electrical stimulus system including:
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a plurality of implantable electrodes; a receiving antenna for receiving radio frequency signals from an external antenna indicative of characteristics of stimulus pulse trains to be applied to the plurality of electrodes; a metal capsule defining a hermetically sealed chamber, a first recessed area, and a second recessed area, each recessed area defined by said capsule to include at least one aperture formed therethrough in communication with the sealed chamber, the antenna being mechanically interconnected with the capsule; electrical circuitry mounted within the capsule chamber in electrical communication with the antenna through said at least one aperture of said first recessed area for converting received radio frequency signals into a stimulus pulse train for each of a plurality of electrodes; and
,a plurality of electrical leads, each electrical lead being electrically connected at a first end through said at least one aperture of said second recess with the electrical circuitry and at a second end with one of said plurality of implantable electrodes, each of said plurality of electrical leads mechanically interconnected with the metal capsule, whereby said first and second recesses protect the mechanical interconnection of said antenna and the plurality of electrical leads to the capsule, respectively. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification