Programmable wireless electrode system for medical monitoring
First Claim
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1. A wireless bio-potential signal acquisition system, comprising:
- a) a plurality of individual, remotely programmable wireless transceivers, each of said transceivers associated with a patch electrode for use in medical monitoring, and b) a base unit comprising a wireless transceiver for sending and receiving messages to said plurality of individual, remotely programmable wireless transceivers, said messages including configuration commands for said plurality of individual, programmable wireless transceivers;
said base unit transmitting a global time base signal to said plurality of individual, remotely programmable wireless transceivers, said global time base signal for synchronizing the timing of transmission of signals acquired by said plurality of individual, programmable wireless transceivers to said base unit in discrete time slots in a single frequency channel, said base unit further comprising an interface to a monitor, whereby said acquired signals may be sent from said base unit to said monitor for display.
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Abstract
A wireless, programmable system for bio-potential signal acquisition (e.g., electrocardiogram (ECG) data) includes a base unit and a plurality of individual wireless, remotely programmable transceivers that connect to patch electrodes. The base unit manages the transceivers by issuing registration, configuration, data acquisition, and transmission commands using wireless techniques. Bio-potential signals from the wireless transceivers are demultiplexed and supplied via a standard interface to a conventional monitor for display.
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Citations
38 Claims
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1. A wireless bio-potential signal acquisition system, comprising:
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a) a plurality of individual, remotely programmable wireless transceivers, each of said transceivers associated with a patch electrode for use in medical monitoring, and b) a base unit comprising a wireless transceiver for sending and receiving messages to said plurality of individual, remotely programmable wireless transceivers, said messages including configuration commands for said plurality of individual, programmable wireless transceivers;
said base unit transmitting a global time base signal to said plurality of individual, remotely programmable wireless transceivers, said global time base signal for synchronizing the timing of transmission of signals acquired by said plurality of individual, programmable wireless transceivers to said base unit in discrete time slots in a single frequency channel, said base unit further comprising an interface to a monitor, whereby said acquired signals may be sent from said base unit to said monitor for display. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 19, 20)
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11. A dynamically programmable, wireless bio-potential signal acquisition system, comprising:
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a) a plurality of individual, remotely programmable wireless transceivers, each of said transceivers associated with a patch electrode for use in medical monitoring, and b) a base unit comprising a wireless transceiver for sending and receiving messages to said plurality of individual, remotely programmable wireless transceivers, c) wherein said base unit and said plurality of individual, programmable wireless transceivers implement a wireless programming protocol by which said messages are exchanged between said base unit and said plurality of individual, remotely programmable wireless transceivers whereby registration, configuration, data acquisition control, and data transmission control properties of said plurality of individual, remotely programmable wireless transceivers may be managed by said base unit. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 35, 36)
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21. A wireless, programmable transceiver adapted to attach to a patch electrode for placement on the surface of a patient'"'"'s body, said transceiver transmitting signals acquired from said electrode to a base unit, comprising:
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an amplifier receiving a signal from said electrode and generating an amplified analog signal;
an anti-aliasing filter removing undesirable frequencies;
an analog to digital converter converting said amplified, filtered analog signal into a digital signal;
a computing platform having a memory storing a set of instructions executable by said computing platform and performing signal processing of said digital signal;
a buffer storing said digital signal for transmission to said base unit;
a wireless transceiver module including an antenna for wireless transmission of said digital signal between said wireless programmable transceiver assembly and said base unit; and
a frequency generator responsive to said microcontroller for generating a frequency at which said wireless transmission is to occur;
wherein said computing platform is operative to select a frequency for said wireless transmission in response to control commands received from said base unit at said wireless transceiver module. - View Dependent Claims (22, 23, 24, 25, 34, 38)
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26. A base unit for a plurality of wireless, programmable transceivers each adapted to attach to a patch electrode for placement on the surface of a patient'"'"'s body, comprising:
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a transceiver module including an antenna for wireless communication in transmit and receive directions between said base unit and said wireless, programmable transceivers, said wireless communication from said plurality of wireless, programmable transceivers to said base unit occurring in a plurality of discrete time slots in a single frequency channel;
an encoder/decoder coupled to said antenna;
a computing platform and a memory, said computing platform performing error correction, processing information in control messages and data in digitized signals from said encoder/decoder;
a demultiplexer demultiplexing received data from said plurality of wireless, programmable transceiver assemblies in said plurality of discrete time slots;
a digital to analog converter for converting received, demultiplexed digital signals from said plurality of wireless, programmable transceiver assemblies into analog signals; and
an interface supplying said analog signals to a monitor for display. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 37)
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Specification