Enhanced wireless communication for medical devices
First Claim
1. A method for transmitting cardiac data from a wireless sensor to a host device, the method comprising:
- digitizing cardiac sound data and ECG data received at the wireless sensor;
filtering the digitized cardiac sound data and ECG data;
compressing the cardiac sound data and the ECG data using an adaptive differential compression component;
combining the compressed cardiac sound data and compressed ECG data into a common packet structure; and
transmitting the common packet structure from the wireless sensor to the host device via a Bluetooth Low Energy communications link.
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Accused Products
Abstract
Methods and apparatuses for wireless communication between medical devices are provided. In some embodiments, commodity low power, low bandwidth communication protocols may be utilized to simultaneously convey multiple signals with high fidelity and reliability. For example, cardiac sound data and ECG data may be compressed using a common ADPCM component and inserted into a common BLE packet structure. Command-control data may also be inserted. Where required command-control data reporting frequency is less than the packet frequency, header bits may be utilized to convey multiple types of command-control data in a given packet byte position. Rolling packet sequence values may be inserted into the common packet structure, for use by receiving devices to identify link integrity failures.
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Citations
10 Claims
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1. A method for transmitting cardiac data from a wireless sensor to a host device, the method comprising:
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digitizing cardiac sound data and ECG data received at the wireless sensor; filtering the digitized cardiac sound data and ECG data; compressing the cardiac sound data and the ECG data using an adaptive differential compression component; combining the compressed cardiac sound data and compressed ECG data into a common packet structure; and transmitting the common packet structure from the wireless sensor to the host device via a Bluetooth Low Energy communications link. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification