Automatic self-testing of an internal device in a closed system
First Claim
Patent Images
1. A closed system comprising:
- an internal device disposed interior of a boundary;
an internal power source for powering the internal device;
an external device separated from the internal device by and disposed exterior to the boundary, the external device being in telemetric communication with the internal device and generating an external RF energy source during telemetric communication with the internal device;
a system clock for counting down a predetermined period of time;
self-testing circuitry for verifying proper operation of at least one component of the internal device, the self-testing circuitry being automatically triggered upon the expiration of the predetermined period of time on the system clock;
RF circuitry for detecting the presence and level of an external RF field received by the internal device; and
a microprocessor for initiating the self-testing circuitry and resetting the system clock in the presence of a detected external RF field when the time remaining on the system clock is less than a predetermined reset time period.
1 Assignment
0 Petitions
Accused Products
Abstract
A closed system such as a TET system in which self-testing of all components of the implantable medical device whose malfunction could negatively impact on the proper operation of the closed system is automatically and periodically performed without triggering from an external device. In addition, a closed system including automatic, periodic self-testing of the implantable medical device in which, whenever practical, testing of the components is synchronized with telemetric communication of the external device whereby an external RF field generated by the external device is used to supply necessary power to perform self-testing.
45 Citations
16 Claims
-
1. A closed system comprising:
-
an internal device disposed interior of a boundary; an internal power source for powering the internal device; an external device separated from the internal device by and disposed exterior to the boundary, the external device being in telemetric communication with the internal device and generating an external RF energy source during telemetric communication with the internal device; a system clock for counting down a predetermined period of time; self-testing circuitry for verifying proper operation of at least one component of the internal device, the self-testing circuitry being automatically triggered upon the expiration of the predetermined period of time on the system clock; RF circuitry for detecting the presence and level of an external RF field received by the internal device; and a microprocessor for initiating the self-testing circuitry and resetting the system clock in the presence of a detected external RF field when the time remaining on the system clock is less than a predetermined reset time period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method for automatic self-testing in a closed system an interval device having an internal power source separated by a boundary from an external device disposed exterior to the boundary, the external device being in telemetric communication with the internal device and generating an external RF energy source during telemetric communication with the internal device, the method comprising the steps of:
-
counting down a predetermined period of time using a system clock; automatically triggering upon the expiration of the predetermined period of time on the system clock self-testing circuitry for verifying proper operation of at least one component of the internal device; detecting the presence and level of an external RF field received by the internal device; and in the presence of a detected external RF field when the time remaining on the system clock is less than a predetermined reset time period, initiating the self-testing circuitry and resetting the system clock. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
Specification