Proximity signature for secure communication with implantable medical device
First Claim
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1. A method of establishing secure communication between an implantable medical device and an external device, the method being performed by the implantable medical device and comprising:
- receiving a first distance telemetry request for secure distance communication;
determining whether a coded proximity telemetry signal is being received;
transmitting, via distance telemetry, information regarding an encryption key;
determining whether a second distance telemetry communication containing information encrypted according to the encryption key is being received; and
accepting the request for secure distance communication if the second distance telemetry communication contains information encrypted according to the encryption key.
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Abstract
Systems, devices and methods employing coded magnetic fields or transfer of encryption key information via proximity telemetry are described. The systems, methods and devices help prevent or reduce unintended or unintentional distance telemetry communication between an external medical device and an implantable medical device.
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Citations
17 Claims
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1. A method of establishing secure communication between an implantable medical device and an external device, the method being performed by the implantable medical device and comprising:
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receiving a first distance telemetry request for secure distance communication; determining whether a coded proximity telemetry signal is being received; transmitting, via distance telemetry, information regarding an encryption key; determining whether a second distance telemetry communication containing information encrypted according to the encryption key is being received; and accepting the request for secure distance communication if the second distance telemetry communication contains information encrypted according to the encryption key. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An implantable medical device, comprising:
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a receiver module; a transceiver module configured to receive a first distance telemetry request for secure distance communication and to transmit, via distance telemetry, information regarding an encryption key; and a processor configured to; determine whether a coded proximity telemetry signal is being received by the receiver module, determine whether a second distance telemetry communication containing information encrypted according to the encryption key is being received, and to accept the request for secure distance communication if the second distance telemetry communication contains information encrypted according to the encryption key. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification