Systems, devices, and methods for wireless communications in analyte monitoring systems

Abstract

Systems, devices and methods are provided that allow for enhanced performance, power efficiency, interoperability, data security and user privacy for in vivo analyte monitoring systems that utilize wireless communications. The in vivo analyte monitoring systems can include a Bluetooth or Bluetooth Low Energy enabled handheld relay device for wirelessly relaying analyte data between a sensor unit device and one or more reader devices. The in vivo analyte monitoring systems can employ advertisement and encryption schemes for wirelessly transmitting data in a manner that allows for improved security, efficiency and privacy.

1 - 100 . (canceled) 
     
     
         101 . An in vivo analyte monitoring system, comprising:
 (a) a sensor control device, comprising:
 an analyte sensor adapted to sense an analyte level in a human body; and 
 wireless communication circuitry adapted to wirelessly transmit data indicative of the sensed analyte level according to either a Bluetooth Low Energy (BTLE) or a proprietary protocol; 
   (b) a handheld relay device, comprising:
 a test strip port adapted to receive an analyte test strip and collect data indicative of an in vitro analyte measurement; 
 wireless communication circuitry adapted to: 
 receive, according to the BTLE or the proprietary protocol, the data indicative of the sensed analyte level directly from the sensor control device; 
 manage connection requests and data requests received from one or more reader devices; and 
   transmit, according to a BTLE protocol, the data indicative of the sensed analyte level and the data indicative of the in vitro analyte measurements; and   (c) one or more reader devices, each comprising wireless communication circuitry adapted to receive, according to the BTLE protocol, the data indicative of the sensed analyte level and the data indicative of the in vitro analyte measurement directly from the handheld relay device.   
     
     
         102 - 104 . (canceled) 
     
     
         105 . The system of  claim 101 , wherein the sensor control device further comprises:
 one or more processors; and   a memory on which one or more instructions are stored that, when executed by the one or more processors, cause the one or more processors to enter into a state in which the sensor control device only accepts connection requests and data requests from the handheld relay device.   
     
     
         106 . The system of  claim 101 , wherein the handheld relay device further comprises:
 one or more processors; and   a memory on which one or more instructions are stored that, when executed by the one or more processors, cause the one or more processors to store in memory the received data indicative of the sensed analyte level and the data indicative of the in vitro analyte measurement.   
     
     
         107 . The system of  claim 106 , wherein the handheld relay device further comprises a memory on which one or more instructions are stored that, when executed by the one or more processors, cause the one or more processors to cause the wireless communication circuitry to transmit data indicative of the sensed analyte level and the data indicative of the in vitro analyte measurement in response to a request from the one or more reader devices. 
     
     
         108 - 115 . (canceled) 
     
     
         116 . The system of  claim 101 , wherein at least one of the one or more reader devices is a smartphone. 
     
     
         117 . The system of  claim 101 , wherein the wireless communication circuitry of the handheld relay device is further adapted to concurrently transmit the data indicative of the sensed analyte level and the data indicative of the in vitro analyte measurement to two or more reader devices. 
     
     
         118 . (canceled) 
     
     
         119 . The system of  claim 101 , further comprising a scatternet. 
     
     
         120 . The system of  claim 101 , further comprising one or more piconets. 
     
     
         121 . The system of  claim 101 , wherein the sensor control device is configured as a slave device and the handheld relay device is configured as a master device relative to the sensor control device. 
     
     
         122 . The system of  claim 121 , wherein the handheld relay device is configured as a master device relative to the one or more reader devices, and wherein the one or more reader devices are configured as slave devices relative to the handheld relay device. 
     
     
         123 . The system of  claim 121 , wherein the handheld relay device is configured as a slave device relative to the one or more reader devices, and wherein the one or more reader devices are configured as master devices relative to the handheld relay device. 
     
     
         124 . The system of  claim 121 , wherein the wireless communication circuitry of the sensor control device is configured to transmit data according to a plurality of connection parameters comprising one or more of a connection interval maximum parameter, a slave latency parameter, and a supervision timeout parameter. 
     
     
         125 . The system of  claim 124 , wherein the connection interval maximum parameter is between 2 and 4 seconds. 
     
     
         126 . The system of  claim 124 , wherein the supervision timeout parameter is greater than 6 seconds. 
     
     
         127 . (canceled) 
     
     
         128 . The system of  claim 101 , further comprising:
 a first encryption key stored in a memory of the sensor control device;   a second encryption key stored in a memory of the handheld relay device; and   wherein the wireless communication circuitries of the sensor control device and the handheld relay device are configured to establish a communication channel between the sensor control device and the handheld relay device, and configured to exchange the first and second encryption keys during a pairing process.   
     
     
         129 . The system of  claim 128 , wherein the sensor control device further comprises:
 one or more processors; and   a memory on which one or more instructions are stored that, when executed by the one or more processors, cause the one or more processors to encrypt the data indicative of the sensed analyte level.   
     
     
         130 . The system of  claim 128 , wherein the wireless communication circuitries of the sensor control device and the handheld relay device are further configured to close the communication channel after the exchange of the first and second encryption keys. 
     
     
         131 . (canceled) 
     
     
         132 . The system of  claim 130 , wherein the sensor control device further comprises:
 one or more processors; and   a memory on which one or more instructions are stored that, when executed by the one or more processors, cause the one or more processors to enter into a state, after the exchange of the first and second encryption keys, in which the sensor control device only accepts connection requests and data requests from the handheld relay device.   
     
     
         133 . The system of  claim 129 , wherein the handheld relay device further comprises:
 one or more processors; and   a memory on which one or more instructions are stored that, when executed by the one or more processors, cause the one or more processors to decrypt the encrypted data indicative of the sensed analyte level.   
     
     
         134 . The system of  claim 101 , wherein the wireless communication circuitry of the sensor control device is configured to operate in a discoverable state relative to the handheld relay device. 
     
     
         135 - 259 . (canceled)